Media Release Electricity Tariff Revision For The Period 1 January To 31 March 2016 For the period from 1 Jan to 31 Mar 2016, electricity tariffs will decrease by an average of 4.2% or 0.85 cent per kWh compared to the previous quarter. The tariff reduction is due to the lower cost of natural gas for electricity generation which fell by 8.9% compared to 4Q 2015. For households, the electricity tariff will decrease from 20.35 to 19.50 cents per kWh for 1 Jan to 31 Mar 2016. The average monthly electricity bill for families living in four-room HDB flats will decrease by $3.55 SP Services reviews the electricity tariffs quarterly based on guidelines set by the Energy Market Authority (EMA), the electricity industry regulator. The tariffs given in Appendix 1 have been approved by the EMA. Issued by: SP Group 2 Kallang Sector Singapore 349277 www.spgroup.com.sg Appendix 1 ELECTRICITY TARIFFS FROM 1 JAN 2016 Appendix 2 BREAKDOWN OF ELECTRICITY TARIFF 1. The electricity tariff consists of the following four components: Energy costs (paid to the generation companies): This component is adjusted quarterly to reflect changes in the cost of power generation. Network costs (paid to SP PowerAssets): This fee is reviewed annually. Market Support Services Fee (paid to SP Services): This fee is reviewed annually. Market Administration and Power System Operation Fee (paid to Energy Market Company and Power System Operator): This fee is reviewed annually to recover the costs of operating the electricity wholesale market and power system. Q1 2016 TARIF Appendix 3 AVERAGE MONTHLY ELECTRICITY BILLS OF DOMESTIC CUSTOMERS (TARIFF WEF 1 JANUARY 2016)

METER DECLARATION REPORT APC: _________________________ Turn-on Date: ______________________________ Site Address: ___________________________________________________________________ PART I To: HOS (Electrical Installation), SP Services Please select one: � I will remove and return the following meter/s: Meter/s No: ____________________________________________________________ to Electricity Meters Section by ________________________________________ (within 2 weeks from turn-on date unless with valid reason). Remarks: ______________________________________________________________ � I will inform Electricity Meters Section to remove the following meter/s. Meter/s No: ____________________________________________________________ � The following meter/s were found: *Damaged/Missing/Stolen/others___________________ Meter/s No: ____________________________________________________________ When was it discovered? ____________________ (Date) How was it discovered? ___________________________________________________ Supply Still In Use: *Yes/No If Yes: please state by what means: ___________________________________________ If No: please state the reason: _______________________________________________ Please take note that if the old meters are not returned, the account holder shall bear the consequences of any issue that may arise. ______________________________ ________________ ____________ Name & Signature of LEW / Date Licence No. Tel No. I concur with the above statement. ___________________________________ Name & Signature of Account Holder / Date _________________________________________________________________________ PART II To: Dy Director, Electricity Meters Section, SP Services For your record and necessary action. ______________________________ ________________ ______________ Name & Signature of Officer-in-charge Tel No. Date for HOS (Electrical Installation) SP Services *Please delete where applicable. Meter Declaration Report_Rev 05

Media Release SP Group Offers EV Full Charging In 30 Minutes Singapore, 9 January 2019 – Electric vehicle (EV) users can now fully charge their vehicles in 30 minutes at SP Group’s (SP) island-wide charging network, with the largest number of fast direct current (DC) chargers. SP is building Singapore’s largest public EV charging network with 1,000 points, including 250 DC charging points, by 2020. SP’s first wave of 38 charging points are located at commercial buildings, industrial sites and educational institutions. (See Annex for the list of charging locations) The locations are close to amenities such as food centres, offering drivers greater convenience while waiting for their vehicles to be charged. There are 19 high-powered 50kW direct current (DC) charging points and the other 19 are 43kW alternating current (AC) charging points. These are among the fastest EV charging points in Singapore. The 50kW DC chargers can fully charge a car in 30 minutes. Over the next few years, SP will introduce more high-powered DC charging points of up to 350kW. Other than SP’s, there are six other DC chargers in Singapore. SP’s new additions will be a game-changer in improving the charging turnaround time for EV drivers in Singapore. EV drivers can also enjoy at least 50 per cent cost savings compared to typical Internal Combustion Engine (ICE) vehicles for every kilometre travelled. The cost of using SP charging points will be regularly adjusted, mainly influenced by the prevailing electricity costs in Singapore. “Our nation-wide public charging network offers EV drivers fast charging, with greater convenience and a seamless experience through our digital solution, at cost-competitive rates. This will encourage wider adoption of green mobility in Singapore, and enable drivers to save cost,” said Mr Wong Kim Yin, Group Chief Executive Officer of SP Group. EV drivers can use SP Group’s charging service through the SP Utilities mobile application where they can search for the nearest available charging points, receive updates on their charging sessions and make payment. This first wave of locations includes Singapore Polytechnic. The SP charging points there will also serve as an education and research platform, as part of Singapore Polytechnic’s engineering curriculum to train students and adult learners. Thought this collaboration, SP Group and Singapore Polytechnic aim to develop new skills related to EVs and related charging technologies for Singapore. SP Group is also showcasing its charging points at the Singapore Motorshow 2019 at Suntec City from 10 to 13 January 2019. They will be located at the BMW and Hyundai booths. About SP Group SP Group is a leading energy utilities group in the Asia Pacific. It owns and operates electricity and gas transmission and distribution businesses in Singapore and Australia, and district cooling businesses in Singapore and China. SP Group is committed to providing customers with reliable and efficient energy utilities services. About 1.5 million industrial, commercial and residential customers in Singapore benefit from SP Group’s world-class transmission, distribution and market support services. These networks are amongst the most reliable and cost-effective world-wide. SP Group also drives digital solutions to empower customers to manage their utilities, reduce consumption and save cost. For more information, please visit spgroup.com.sg or for follow us on Facebook at fb.com/SPGroupSG and on Twitter @SPGroupSG. ANNEX: List of charging locations

Singapore Power Group Contractor Performance Management System Frequently Asked Question Questions: General .......................................................................................................................................................................................... 6 1. How does your CPMS strengthen partnership and improve safety and performance standard? ... 6 2. Can I opt out from CPMS and choose to remain under the old CSM scheme? ...................................... 6 3. Will CPMS disadvantage or penalize contractors who have more contracts with SP? ......................... 6 4. We used to be able to get incentives for every contract. Now, I must be in the top 5 to get incentives, in fact you are actually not encouraging us to do the right things. Are we taking a step back? ...................................................................................................................................................................................... 7 5. Why do SP only reward top 5 contractors? In order to motivate us, you should reward whoever that meets certain cut off scores. Similarly, is it fair to suspend the bottom 2 contractors if they have done well but ranked last nonetheless? .................................................................................................................. 7 6. What is the purpose of suspending contractors if your objective is to partner us? ................................ 7 7. For those contractors who is just doing supplying of cables, how does it apply to this CPMS as cable supply category is not covered under CPMS? ......................................................................................... 8 8. Contractors may participate in various SP projects (i.e. Cable laying, milling-and-patching, buildingand-construction etc.) under a single company name and under different roles such as maincontractor and sub-contractor. Kindly confirm if only the main-contractors will be subjected to CPMS, please. .................................................................................................................................................................... 8 9. What happen to my current contracts? Will you make any changes to them? ...................................... 9 10. Are all my demerit points will be wiped clean from 1 Oct? ............................................................................. 9 11. How can I be assured that the demerit points will cease after 1 Oct given it is currently in our contracts? ............................................................................................................................................................................ 9 12. What about my safety incentives? Will it be void after 1 Oct? ...................................................................... 9 13. If I am issued with demerit points just before 1 Oct that cause me to exceed 100 points, will I still be suspended for next 3 months or will it be reset after 1 Oct? Likewise, how does it work if I am serving my suspension now that straddle into 1 Oct?....................................................................................... 10 14. I have many contracts with SP. Some still have quite runway to go while some have only a few months left and some just started less than one month before your quarter end or annual end. So which contracts will be caught under your CPMS for a particular quarter or year?.............................. 10 15. Does this mean that a contractor just gets a job with you at Q4 will have an unfair advantage over contractors who have been carrying out work over the entire year or have many jobs during the year since he has little chance to make mistakes? ............................................................................................. 10 16. How does your suspension work? Assuming I am suspended from Jan to end Mar. There is a tender published in Feb but close only in Apr. Can I participate? ............................................................... 11 17. Similarly, I have submitted my tender when it closed in Mar but you have not awarded yet. But I get suspended from Apr to end Jun, am I still considered for the tender?............................................... 11 18. If someone has already been suspended for the rest of the year already and also, score less than 50 for a quarter during the year or rank bottom 2 at end of year, how do all these overlapping suspension work? ............................................................................................................................................................ 11 19. What will happen to my existing contracts when I get suspended from tender? ................................. 11 Contractor Performance Assessment (CPA) ................................................................................................................... 12 20. What is the annual period of assessment for your CPMS? Given you have start only in 1 Oct 16, when will the first annual period end?.................................................................................................................... 12 21. For the first annual period starting 1 Oct 16, if it is going to be a shortened one instead of full 12 months, will the reward be prorated? Likewise, the suspension period? ............................................... 12 22. How is my reward computed, especially if I have many contracts with varied amounts and outstanding contract periods? ................................................................................................................................... 12 23. What happen if there is tied score that results in more than 5 contractors in Top 5? Likewise, what happen if same thing happens in bottom 2? ....................................................................................................... 12 24. How are you going to rank us? Given the nature of work are different across contractors, is it fair to rank us together? You have to agree that a small contractor is not comparable to a big one. Likewise, someone doing a simple job cannot be compared with another one doing a complex job. ........................................................................................................................................................................................ 13 25. If I happen to score less than 50 for Q4, will I get suspended in the next 3 months which is actually a new year or will this be wiped clean instead since you are starting a new year? ............................. 13 26. Kindly confirm if the bottom-two-annual-ranks and/or BUS suspension in one of the category of work where the non-conformance or violation is unique to the category of work, would affect tender participation in all categories or specific to the category where non-conformance or violation is found please .............................................................................................................................................. 13 27. Who will be assessing me? How do I know if it is an objective process? ............................................... 13 28. Will the CPMS scores be reset annually? ............................................................................................................... 14 29. Can I confirm that for each critical incident, points are deducted at my overall average quarterly score and not just for the contract in question? So, if I have three violations, there will be three points deduction? ........................................................................................................................................................... 14 30. For critical incidents, why are points deducted at contractor level and not only against the contract in question? Is this fair especially if the rest of the contracts are performing well? Should one poor contract wipe out all the other good work I have done? Again, this seems to put contractors with more contracts at a higher risk of scoring poorly. ............................................................................................. 14 31. Can you share with us the detailed scorecard and weightage you will be using to assess us? Just like exam, we must prepare ourselves. .................................................................................................................. 15 32. In the worst case, can a quarterly score go into negative range? ............................................................... 15 33. If I have just started work on a new contract a few weeks or days before the end of a quarter or my work is completed very shortly after the start of a quarter, how will I be scored for the quarter? ............................................................................................................................................................................................... 15 34. Do you tell us where we stand or will I know that I get suspended out of the blue after your end of year assessment or quarterly assessment and how do I know if I am suspended or win the reward? Will the public know who is suspended or rewarded? ................................................................ 15 Tender Evaluation Framework (TEF) .................................................................................................................................. 16 35. How do I know that the same standard will be applied to all of us when you carry out your SET assessment? Who will assess us? ............................................................................................................................ 16 36. If I fail your SET the first time, can I apply again to be reassessed? Is there a limit to the number of reassessment I can take in a year? ........................................................................................................................... 16 37. Will you be helping us to improve if I fail the first SET so that we can improve and ultimately qualify? ............................................................................................................................................................................................... 16 38. You say we will be assessed for the SET annually. Is your SET valid annually based on your year end or for one year from the date I am qualify? If it is the later, does it mean that I got cleared in Jan and because your year end is Mar, I must do one more assessment in again to be valid for Apr to Mar next year again? If so, this does not make sense and waste our time........................................ 17 39. How does Turnkey Contractor complete the SET questionnaire as they are mainly supplying cable? ............................................................................................................................................................................................... 17 40. If we understand your scheme correctly, there will not be past 2 years CPMS records for you to score us in the initial period. But if I have been doing a good job, you will agree that I should be given advantage over new ones at tender evaluation from 1 Oct? How will this be handled? ..... 18 41. What happen if there is a tie at your Q-P score stage? .................................................................................... 18 42. Kindly confirm if the weightage of CPMS to Quality score, and weightage of Quality score to Price score are transparent to contractors, please. ....................................................................................................... 18 Business under Surveillance (BUS) ...................................................................................................................................... 19 43. Does it apply by contract or by contractor? How does this work? ............................................................. 19 44. Why do you apply the BUS by contract but aggregate them at contractor level? Is this correct as the nature of work for each contract (or even work within same contract) can be different? ...... 19 45. The critical incidents are based on whose observations, project officers or safety officers’ inspections? ...................................................................................................................................................................... 19 46. What happens if a project officer on a routine site supervision basis identifies major nonconformances? Does it land us on BUS? ............................................................................................................... 19 47. How do you count the 3 major non-conformances? ......................................................................................... 20 48. If there are 2 or more major non-conformances observations during a safety inspection, is the number of non-conformance taken a 1 or based on the number of observations? Does the number of major non-conformances and number of bus get reset every quarter? ............................................ 20 49. How do you count the number of BUS? Is it one for safety and a separate one for operation violations? ......................................................................................................................................................................... 20 50. If I am on 2 BUS programmes for safety related violations, and I then have a BUS programme for cable damage, why should they be counted together? They are not related, is it fair and correct? ............................................................................................................................................................................................... 21 51. What happen if I get offloaded after 2 BUS programmes but before the quarter ends, I get another BUS programme, does this mean I am on 3 programmes now and will be suspended till end of the year? ............................................................................................................................................................................. 21 52. If I am on a BUS programme and another BUS programme is triggered, is it still counted as 1 st programme or the 2 nd programme will start and how will this work? Does this mean the total time for the 2 BUS programme s is now shorter than the standard 14 weeks? ................................................. 21 53. If I am on a BUS program and there are major non-conformances observed, does the counting for 3 major non-conformances start again; or am I given an amnesty since I am under rehabilitation? .................................................................................................................................................................. 22 54. If someone committed at the same time say two critical violations at the same time inspections, is the consequence one or two BUS programs? What about the point’s deduction? ........................... 22 55. If a safety major non-conformance or critical violation also results in cable damage, is the consequence one or two BUS programs? What about the point’s deduction? .................................. 22 56. How do you ascertain that I can or cannot be offloaded from the BUS after 5th week or 7th week? Who will do that? ........................................................................................................................................................... 23 57. What happen if I still cannot get offloaded after the 3rd BUS? .................................................................... 23 58. If someone got 3 BUS programs in Q1, he will be suspended till end of the year, i.e. for approx. 9 months. If someone gets only 3 BUS programs in Q4, he will only be suspended for a much shorter period. Is this fair? ......................................................................................................................................................... 23 59. If I am on a BUS program and it straddle across two quarters? Which quarter will this BUS be marked against? ............................................................................................................................................................. 23 60. If I am on a BUS program on Q1 and your week 5/7 straddles into Q2, and assuming I do not manage to get myself offloaded, you will put me on another BUS program again. Does this new BUS count as BUS program 2 for Q1 or program 1 for Q2? ............................................................................ 24 61. If I am on 2 BUS programs in Q2 and it happens that either one or both straddles into Q3? And I did not get myself offloaded in Q3 and need to trigger the next BUS, does it mean my 3rd BUS counts for Q2 or does it mean I am lucky and this will be counted as a fresh 1st BUS for Q3? ....... 24 62. You say that if I cannot get off the BUS after the 3rd time in a quarter, you will not want to spend time and resource with me anymore. Can I confirm this is the case? What about if I am on 3 BUS rides in Q1 already and either did not get myself offloaded or commit a violation that leads me to another BUS during the same quarter, do you mean there is no more BUS ride for me in the quarter? .............................................................................................................................................................................. 24 63. If I am on only 1 BUS for Q1, likewise for Q2 and Q3, will you still put me on a 4th BUS if I get myself a violation either in Q3 or Q4 again? ...................................................................................................................... 24 64. If you give up on a contractor after 3 BUS programs and not going to put him on another BUS, are you not encouraging “don’t care” attitude from those erroneous contractors and at the same time goes against the your aim to work with and help contractors improve? And it means you are not taking any more action against them, isn’t this unfair to the responsible ones? .................................... 25 65. If you mean that you will not trigger any more BUS only if a contractor cannot get himself offloaded after 3 BUS programs or trigger a 4th BUS in the same quarter and everything reset after end of each quarter, then does this mean that this contractor if a poor one, will require to be on BUS again if he commits violations in the next quarter? Doesn’t this go against your concept of not wanting to spend more time with contractors who do not want to change? ........................................................ 25 66. I have only one contract and one work site under it. What happen if I am already near the end of the site work and am put on BUS but the remaining work itself will not have sufficient time for me to complete the BUS ride? ......................................................................................................................................... 25 67. For cable damages, you mean we will be on BUS regardless whether it is our fault or not? .......... 26 68. Do you mean stop work on site or stop issuing new work orders? .......................................................... 26 69. When on BUS, are the stop work and other training measures applicable to only the site involved or for all sites under the same contract? How does it work? ....................................................................... 26 70. I have a few sites under a contract doing different work. I get onto BUS because of one violation in a particular site. Does it mean that if I do not have enough work for that site to complete the BUS program, my other sites will have to substitute for it despite of different nature? ..................... 26 71. Is it practical to impose stop work if the road is opened and need to be closed ASAP to meet regulatory requirements? Likewise, if it is a critical urgent work like supply restoration in the case of cable damage? .......................................................................................................................................................... 27 72. How does the BUS scheme help contractors instead of punishing them? In what way is it a partnership arrangement? .......................................................................................................................................... 27 73. Why need to suspend me if I am on more than 2 BUS in a quarter? ......................................................... 27 74. If you keep sending us on BUS, how do complete our work? ................................................................... 27 General 1. How does your CPMS strengthen partnership and improve safety and performance standard? CPMS adopts 3 main components to help SP work together with our contractors to improve both safety and quality standards: a. Contractor Performance Assessment helps to give our contractors timely feedback on their performance and identify areas where improvement is needed. It also includes an incentive scheme where top performers will receive a significant incentive at the end of each Assessment Year. b. The BUS programme is a stop and assist programme where SP deploys our personnel to help contractors identify root causes and mitigation measures when incidents occur in the course of their work. c. The new Tender Evaluation Framework that takes into account the contractor’s past CPMS scores will give due recognition to contractors who have consistently performed well by giving them an advantage in their tenders. 2. Can I opt out from CPMS and choose to remain under the old CSM scheme? No, this is a SP’s company policy that we will apply to all in the spirit of transparency and fairness. 3. Will CPMS disadvantage or penalize contractors who have more contracts with SP? No. SP awards multiple contracts to a contractor on the basis that the contractor must be able to cope with multiple contracts without compromise to safety or quality. Hence this system will not penalize those with more contracts if they can still manage them well. We discourage contractors bidding for new tenders that are beyond their capacity as it places lives in danger and the project at higher risk of failure. 4. We used to be able to get incentives for every contract. Now, I must be in the top 5 to get incentives, in fact you are actually not encouraging us to do the right things. Are we taking a step back? Safety and quality standards should be maintained consistently across all contracts. Hence a contractor level incentive scheme would better support this objective than the previous individual contract based incentive. In addition, the new incentive is now pegged at a higher quantum of 2% (capped at $100,000) of the contractor’s total contract value for the particular Assessment Year. This means that a typical contractor with Four (4) 2-year term contracts who perform consistently well may be able to get up to $200,000 over 2 years instead of up to $120,000 under the old scheme. 5. Why do SP only reward top 5 contractors? In order to motivate us, you should reward whoever that meets certain cut off scores. Similarly, is it fair to suspend the bottom 2 contractors if they have done well but ranked last nonetheless? As you know the Singapore environment is becoming increasingly more difficult to work with higher expectation from public and more congested site conditions. Hence CPMS seeks to establish a continuous improvement framework by on-going competition so that complacency will not set in. This allows us to provide a higher quantum for the incentive and also give contractors a higher level of achievement and reputation. 6. What is the purpose of suspending contractors if your objective is to partner us? Suspension is only a temporary break from giving more contracts and is only applied if the contractor in question is facing serious issues or persistently unable to fix the current issues. Hence the temporary break is important to allow such contractors to focus in getting their fundamentals correct and not aggravate their situation by overstretching their capacity to take on more work. 7. For those contractors who is just doing supplying of cables, how does it apply to this CPMS as cable supply category is not covered under CPMS? For tenders where the scope of work is only for the supply of cables, CPMS does not apply. Hence companies that only engage in the supply of cables can participate. For tenders where the scope of work is for the supply AND installation of cables, CPMS will apply. All companies bidding for such jobs would require to be SET pre-qualified. Companies that only supply cables can participate through one of the following ways: a. Participate in the bid through a local installation contractor that is SET Prequalify b. Participate in the bid themselves by obtaining SET pre-qualification for their company. During the initial implementation of the CPMS, an exception may be granted on a case-by-case basis to companies that are not able to participate through either methods explained above. The exception may be granted if the company fulfills the following criteria: � � � Company is a pure supplier that does not carry out any Construction- Related work Appoints a sub-contractor that undertakes ALL installation and construction work under the contract. The appointed sub-contractor must be a SET qualified Subcontractor 8. Contractors may participate in various SP projects (i.e. Cable laying, milling-andpatching, building-and-construction etc.) under a single company name and under different roles such as main-contractor and sub-contractor. Kindly confirm if only the main-contractors will be subjected to CPMS, please. CPMS is applicable to the Main-Contractor. However, it must be noted that the Main Contractor is also responsible for their sub-contractors performance. During the initial implementation of the CPMS, an exception may be granted on a case-by-case basis to apply CPMS to the sub-contractor if the Main Contractor fulfills the following criteria: � � � Main Contractor is a pure supplier that does not carry out any Construction-Related work Appoints a sub-contractor that undertakes ALL installation and construction work under the contract. The appointed sub-contractor must be a SET qualified Subcontractor 9. What happen to my current contracts? Will you make any changes to them? For any existing contract that CPMS will apply, their demerit point scheme will be discontinued with effect from 1 Oct 2016. Incentive Scheme will continue for current contracts. 10. Are all my demerit points will be wiped clean from 1 Oct? Yes. 11. How can I be assured that the demerit points will cease after 1 Oct given it is currently in our contracts? We will be sending a letter to contractors with on-going contract to formalize the removal of the demerit point scheme. 12. What about my safety incentives? Will it be void after 1 Oct? As the main objective of the CPMS is about improvement and raising standards, any incentive scheme that is already incorporated into existing contracts will be honored by SP if one meets the criteria. At the same time the same work will also be eligible for incentive under the new CPMS. 13. If I am issued with demerit points just before 1 Oct that cause me to exceed 100 points, will I still be suspended for next 3 months or will it be reset after 1 Oct? Likewise, how does it work if I am serving my suspension now that straddle into 1 Oct? Any Suspension imposed under the current demerit point scheme before 1 Oct 2016 will continue to apply accordingly until its expiry. 14. I have many contracts with SP. Some still have quite runway to go while some have only a few months left and some just started less than one month before your quarter end or annual end. So which contracts will be caught under your CPMS for a particular quarter or year? Any contract (under the CPMS eligible categories) that are still valid as of 1 Oct 2016 will fall under the new CPMS. This means that the BUS programme will apply to them until the expiry of the contract. For CPMS Score, any contract that have works carried out in that quarter or part thereof will be scored at the end of that quarter. Annual assessment will only apply for Contractors who have at least 2 quarterly scores. 15. Does this mean that a contractor just gets a job with you at Q4 will have an unfair advantage over contractors who have been carrying out work over the entire year or have many jobs during the year since he has little chance to make mistakes? No, he will only get a score for Q4 based on that one job in Q4 but will not be eligible for the annual assessment if there are no other scores in Q1 – Q3. 16. How does your suspension work? Assuming I am suspended from Jan to end Mar. There is a tender published in Feb but close only in Apr. Can I participate? Suspension is placed on the contractor’s ability to submit a tender. Hence if the tender only closes in April after the suspension has been lifted, then the contractor can still participate. 17. Similarly, I have submitted my tender when it closed in Mar but you have not awarded yet. But I get suspended from Apr to end Jun, am I still considered for the tender? You can be considered for the tender however we will take into account the reasons for the Apr – Jun suspension when evaluating your tender. 18. If someone has already been suspended for the rest of the year already and also, score less than 50 for a quarter during the year or rank bottom 2 at end of year, how do all these overlapping suspension work? Suspension will run concurrently until the end of the longer suspension period. 19. What will happen to my existing contracts when I get suspended from tender? Your existing contract will continue till the end date. But if one continues to perform poorly such as continued to have occurrence of critical incidents, we need to consider whether he is even fit to continue to carry out work for SP under existing contracts. Contractor Performance Assessment (CPA) 20. What is the annual period of assessment for your CPMS? Given you have start only in 1 Oct 16, when will the first annual period end? The annual assessment period will start from 1 Apr and end on 31 Mar the next year. The first annual assessment will be carried out in March 2017 but will only apply for contractors that have scores in at least 2 quarters. 21. For the first annual period starting 1 Oct 16, if it is going to be a shortened one instead of full 12 months, will the reward be prorated? Likewise, the suspension period? The reward will be contract value based on the 6 month period from 1 Oct 16 to 31 Mar 17 and the suspension period will remain the same. 22. How is my reward computed, especially if I have many contracts with varied amounts and outstanding contract periods? Reward = 2 % of Sum of Annual value of the each contracts (cap at $100K) Annual Value of each contract is calculated by: Contract Sum / Contract Period (weeks) x No. of weeks (or part thereof) of works were carried out in that year. 23. What happen if there is tied score that results in more than 5 contractors in Top 5? Likewise, what happen if same thing happens in bottom 2? We will rank out all the contractors based on their score. The first 5 will get the reward and if the 6th or subsequent position contractor has the same score as the one in the 5th position, they will all get the same reward. For the bottom 2, we will use the no. of critical incidents and major non-conformances to determine the one to suspend. 24. How are you going to rank us? Given the nature of work are different across contractors, is it fair to rank us together? You have to agree that a small contractor is not comparable to a big one. Likewise, someone doing a simple job cannot be compared with another one doing a complex job. Although different contractors may carry out different works, all contractors under CPMS carry out physical construction or civil work where safety and quality plays a critical role regardless of the job’s size and complexity. A simple job can easily cause fatality if safe work procedures are not used as a complex job. And a complex job means that the risk are even higher and hence all the more important to carry out the work safely. 25. If I happen to score less than 50 for Q4, will I get suspended in the next 3 months which is actually a new year or will this be wiped clean instead since you are starting a new year? No. Quarter to Quarter suspension will still continue across the New Year. 26. Kindly confirm if the bottom-two-annual-ranks and/or BUS suspension in one of the category of work where the non-conformance or violation is unique to the category of work, would affect tender participation in all categories or specific to the category where non-conformance or violation is found please Any suspension imposed under CPMS will be applied across all categories. 27. Who will be assessing me? How do I know if it is an objective process? Scoring will be done by the relevant sections together with our Group Safety. No one individual can determine the CPMS score so that there is a check and balance in the process to ensure objectivity. 28. Will the CPMS scores be reset annually? Each annual assessment will only take into account the scores for that particular year. However, all quarterly Contractor performance score will be kept in our database for reference in evaluating new tenders. 29. Can I confirm that for each critical incident, points are deducted at my overall average quarterly score and not just for the contract in question? So, if I have three violations, there will be three points deduction? Critical Incidents are taken into account at the Contractor level as these are very serious incidents. Each violation will result in its own reduction in score. 30. For critical incidents, why are points deducted at contractor level and not only against the contract in question? Is this fair especially if the rest of the contracts are performing well? Should one poor contract wipe out all the other good work I have done? Again, this seems to put contractors with more contracts at a higher risk of scoring poorly. These are very serious incidents that reflect breaches in very fundamental procedures and mindsets which mean a breach in one contract can also happen in others. Moreover these incidents can have very dire consequences of one or multiple fatalities. Multiple contracts does not necessarily mean higher risk if the fundamental preventive measures are effectively in place. It usually happens if the contractor has overstretched his resources and cannot cope hence resulting in these serious lapses. 31. Can you share with us the detailed scorecard and weightage you will be using to assess us? Just like exam, we must prepare ourselves. The detailed scorecard is based on the specific requirements of the contract where the broad areas of focus have been explained. However, the specific questions in the scorecard is confidential to SP. 32. In the worst case, can a quarterly score go into negative range? No. The lowest score is zero. 33. If I have just started work on a new contract a few weeks or days before the end of a quarter or my work is completed very shortly after the start of a quarter, how will I be scored for the quarter? If the initial period is not sufficient for scoring for new contracts, the sections carrying out the scoring can defer it to the next quarter. For expiring contracts, any remaining contract period in a quarter will be scored accordingly. If any scoring criteria is not applicable, it will not be considered for scoring. 34. Do you tell us where we stand or will I know that I get suspended out of the blue after your end of year assessment or quarterly assessment and how do I know if I am suspended or win the reward? Will the public know who is suspended or rewarded? At the end of each quarter, contractors will be given a grade that reflects their performance in the past quarter. At the end of each Assessment Year, the top 5 contractors that obtain the incentive will be announced publicly. In the spirit of full transparency, SP Group will publish the identities of contractors in each grade from next quarter onwards FY16/17 Q2. The contractors who are being suspended will be informed directly and published in our website. Tender Evaluation Framework (TEF) 35. How do I know that the same standard will be applied to all of us when you carry out your SET assessment? Who will assess us? The SET assessment will be carried out by a committee to ensure a consistent and robust assessment process. 36. If I fail your SET the first time, can I apply again to be reassessed? Is there a limit to the number of reassessment I can take in a year? If you fail the first time, you can apply to be reassessed from the beginning of the next calendar quarter. The prequalification is required for each financial year (Apr-Mar) and is valid till the end of the financial year. Note: in the first year of CPMS, the prequalification is valid up to end March 2018. During the FY, SP can demand prequalified contractor for prequalification again when there are significant changes on the safety background (e.g. if the contractor committed a serious incident at either SP’s site or other client’s site or under MOM stop work order etc) 37. Will you be helping us to improve if I fail the first SET so that we can improve and ultimately qualify? SP will help you identify the areas that require improvement but it will be up to the individual companies to take the necessary actions. 38. You say we will be assessed for the SET annually. Is your SET valid annually based on your year end or for one year from the date I am qualify? If it is the later, does it mean that I got cleared in Jan and because your year end is Mar, I must do one more assessment in again to be valid for Apr to Mar next year again? If so, this does not make sense and waste our time. The Annual SET assessment will be conducted from 1 Feb to 31 Mar that will grant SET qualification that is valid for 1 year starting from 1 Apr. If the application by the contractor overlaps with the annual SET assessment period, then the validity period shall commence from the date of grant until the end of the next assessment year (i.e. 1 Apr – 31 Mar). Any application outside of the annual assessment period will take up to 2 months to process and hence contractors are strongly advised to apply early. 39. How does Turnkey Contractor complete the SET questionnaire as they are mainly supplying cable? SET aims to inculcate a mindset of safety being the highest priority among our contractors, hence any company that wishes to assume the role of the main contracting party with SP must meet the requirements of SET pre-qualification. During the initial implementation of the CPMS, an exception may be granted on a case-by-case basis to apply CPMS to the sub-contractor if the Main Contractor fulfills the following criteria: � � � Main Contractor is a pure supplier that does not carry out any Construction-Related work Appoints a sub-contractor that undertakes ALL installation and construction work under the contract. The appointed sub-contractor must be a SET qualified Subcontractor 40. If we understand your scheme correctly, there will not be past 2 years CPMS records for you to score us in the initial period. But if I have been doing a good job, you will agree that I should be given advantage over new ones at tender evaluation from 1 Oct? How will this be handled? In the initial launch of CPMS, all contractors new or old would start afresh as it would not be fair to measure anyone since the system have not been made known previously. However, over time with the passing of each quarter, your actual CPMS score will be taken into account which will start giving good performing contractors the advantage over poor performing and new contractors. 41. What happen if there is a tie at your Q-P score stage? SP will take all other relevant factors into consideration before making a choice. 42. Kindly confirm if the weightage of CPMS to Quality score, and weightage of Quality score to Price score are transparent to contractors, please. Both Price and Quality is important to SP. The weightage for each may vary depending on the nature of works involved. The specific weightage for each tender is however confidential and will not be made known to Contractors. Business under Surveillance (BUS) 43. Does it apply by contract or by contractor? How does this work? The BUS program applies at the contract level. It is activated when there are occurrences of critical incidents or frequent major non-conformances. Frequent major NCs means 3 or more inspections in a quarter for the same contract was found to have major NCs. 44. Why do you apply the BUS by contract but aggregate them at contractor level? Is this correct as the nature of work for each contract (or even work within same contract) can be different? The no of BUS program aggregated at the contractor level reflect the overall safety performance of the contractor. While the nature of work may vary from one contract to another, the safety management practices are very much the same. 45. The critical incidents are based on whose observations, project officers or safety officers’ inspections? Critical incidents can be identified by any SP personnel (not limited to only those from projects or GS&H) and members of public. For major NCs, only those identified by GS&H will be counted for the purposes of activating the BUS program. 46. What happens if a project officer on a routine site supervision basis identifies major non-conformances? Does it land us on BUS? For major NCs, only those identified by GS&H will be counted for the purposes of activating the BUS program. However, for any issues discovered by project officers, GS&H will follow up with the project officers to work with the contractor on corrective actions. 47. How do you count the 3 major non-conformances? When one or more major non-conformances areas spotted in three separate safety inspection, the BUS program will be activated for that contract. However, the total number of non-conformances from the three inspections will be used in the quarterly CPMS Safety Evaluation, which measures the quarterly safety performance. 48. If there are 2 or more major non-conformances observations during a safety inspection, is the number of non-conformance taken a 1 or based on the number of observations? Does the number of major non-conformances and number of bus get reset every quarter? It will be taken as 1 for the purposes of the BUS program. However, the total number of non-conformances from the three inspections will be used in the quarterly CPMS Safety Evaluation, which measures the quarterly safety performance. Yes, the number of non-conformances for BUS program purpose is reset in the new quarter. 49. How do you count the number of BUS? Is it one for safety and a separate one for operation violations? In a calendar quarter, a BUS will be computed as on the start date of the BUS and not its completion date. If, arising from the first BUS, a contractor is required to attend a second BUS and the second BUS starts within the same calendar quarter, this will count as 2 BUS programmes for that calendar quarter. If the second BUS starts on the next quarter, then the computation will be one (1) BUS programme for each of the two calendar quarters. The Conditions on BUS (Safety) and BUS (Quality) are different. When counting the no of BUS at contractor level, we will include all types of BUS programmes activated. 50. If I am on 2 BUS programmes for safety related violations, and I then have a BUS programme for cable damage, why should they be counted together? They are not related, is it fair and correct? The aggregation of BUS programmes at the contractor is a reflection of overall contractor performance. Both Safety and Quality is important to SP. 51. What happen if I get offloaded after 2 BUS programmes but before the quarter ends, I get another BUS programme, does this mean I am on 3 programmes now and will be suspended till end of the year? Yes. Any contractors who have more than two BUS programmes activated within a quarter will be suspended from further tender till the end of the Assessment Year. 52. If I am on a BUS programme and another BUS programme is triggered, is it still counted as 1 st programme or the 2 nd programme will start and how will this work? Does this mean the total time for the 2 BUS programme s is now shorter than the standard 14 weeks? If you are on the BUS program and another BUS program is activated for nonrelated issues, then both BUS programs will run concurrently to address the different problems. If Both BUS programs are activated for the same reason, then the current BUS is superseded by the 2nd BUS. During the BUS period, Contractor is expected to stay more vigilant on safety during the BUS Period. 53. If I am on a BUS program and there are major non-conformances observed, does the counting for 3 major non-conformances start again; or am I given an amnesty since I am under rehabilitation? During the BUS program, if new major safety non-conformance was spotted that meets the condition of BUS, the 2nd BUS program will be activated. Likewise, if a contractor commits a critical violation during a BUS program before he gets offloaded, the contractor will have a new BUS program activated immediately. 54. If someone committed at the same time say two critical violations at the same time inspections, is the consequence one or two BUS programs? What about the point’s deduction? If they were different critical violations then two separate BUS programs will be activated to address the different issues. If they are the same type of critical violation then only 1 BUS program will be activated. However, the two critical violations will be counted in the quarterly CPMS evaluation and each will be subject to point’s deduction. 55. If a safety major non-conformance or critical violation also results in cable damage, is the consequence one or two BUS programs? What about the point’s deduction? 1 BUS program will be activated if the cause for both violations are is due to the same incident. However, the separate violations will result in separate point reductions accordingly. 56. How do you ascertain that I can or cannot be offloaded from the BUS after 5th week or 7th week? Who will do that? At the end of the 5th or the 7th week, GS&H or Operation Audit (whichever is relevant) will carry out the inspection. The contractor will be offloaded when mitigation measures have been properly implemented and there is no further non-conformance spotted. 57. What happen if I still cannot get offloaded after the 3rd BUS? Firstly, any contractor who is on board BUS more than two times in a quarter will be suspended from future tender till the end of Assessment Year. For a contractor who can’t be offloaded after the 3rd BUS, we will review on case by case whether the contractor is still suitable to work in SP environment. 58. If someone got 3 BUS programs in Q1, he will be suspended till end of the year, i.e. for approx. 9 months. If someone gets only 3 BUS programs in Q4, he will only be suspended for a much shorter period. Is this fair? Suspension is for the purpose of allowing contractor time to focus on fixing the problems at hand so that he does not continue to perpetuate the same problems further in new contracts which may aggravate the problem and result in more serious consequences such as debarment or termination. 59. If I am on a BUS program and it straddle across two quarters? Which quarter will this BUS be marked against? The BUS is counted on the starting date. 60. If I am on a BUS program on Q1 and your week 5/7 straddles into Q2, and assuming I do not manage to get myself offloaded, you will put me on another BUS program again. Does this new BUS count as BUS program 2 for Q1 or program 1 for Q2? The new BUS is counted in Q2. 61. If I am on 2 BUS programs in Q2 and it happens that either one or both straddles into Q3? And I did not get myself offloaded in Q3 and need to trigger the next BUS, does it mean my 3rd BUS counts for Q2 or does it mean I am lucky and this will be counted as a fresh 1st BUS for Q3? The BUS program is counted from the start of the program. Hence the last BUS will be counted as in Q3. 62. You say that if I cannot get off the BUS after the 3rd time in a quarter, you will not want to spend time and resource with me anymore. Can I confirm this is the case? What about if I am on 3 BUS rides in Q1 already and either did not get myself offloaded or commit a violation that leads me to another BUS during the same quarter, do you mean there is no more BUS ride for me in the quarter? It is unlikely to get more than 2 BUS in a quarter. If it happened, the contractor will be suspended from future tender till the end of Assessment Year. The contractor will also be under closely monitored to determine his suitability to continue working for SP even under existing contracts. 63. If I am on only 1 BUS for Q1, likewise for Q2 and Q3, will you still put me on a 4th BUS if I get myself a violation either in Q3 or Q4 again? Yes, because this will only be the 2nd BUS in Q3 or 1st BUS in Q4 given number of BUS is reset every quarter. Under this situation, we will review whether you are still the suitable contractor to SP and work in SP environment. 64. If you give up on a contractor after 3 BUS programs and not going to put him on another BUS, are you not encouraging “don’t care” attitude from those erroneous contractors and at the same time goes against the your aim to work with and help contractors improve? And it means you are not taking any more action against them, isn’t this unfair to the responsible ones? For this situation, the contractor will be closely monitored by SP and we will review case by case whether you are still the suitable contractor to SP and work in SP environment. Our main concern here is safety of the workers. If the contractor is found to be no longer suitable to carry out works safely, his current contracts may also be terminated. 65. If you mean that you will not trigger any more BUS only if a contractor cannot get himself offloaded after 3 BUS programs or trigger a 4th BUS in the same quarter and everything reset after end of each quarter, then does this mean that this contractor if a poor one, will require to be on BUS again if he commits violations in the next quarter? Doesn’t this go against your concept of not wanting to spend more time with contractors who do not want to change? For this situation, the contractor will be closely monitored by SP and we will review case by case whether you are still the suitable contractor to SP and work in SP environment. Our main concern here is safety of the workers. If the contractor is found to be no longer suitable to carry out works safely, his current contracts may also be terminated. 66. I have only one contract and one work site under it. What happen if I am already near the end of the site work and am put on BUS but the remaining work itself will not have sufficient time for me to complete the BUS ride? Under such unique situation, we will modify the Bus Programme as deemed appropriate. 67. For cable damages, you mean we will be on BUS regardless whether it is our fault or not? Considering the protection measures already put in place for cables and gas pipes and there should be cable/pipes detection conducted before starting work, any damage is likely to be due to some non-conformances to requirements or work processes. The BUS program will not be activated if indeed it was found that it was wholly not contractor’s fault. 68. Do you mean stop work on site or stop issuing new work orders? It means stop the work at site. 69. When on BUS, are the stop work and other training measures applicable to only the site involved or for all sites under the same contract? How does it work? Only the affected worksite will be required to stop work to prevent further aggravation. In other words, the workers of these sites are required to attend Safety@SPPG as refresher, and project/safety people of contractor for this contract are required to attend project safety management training as refresher. 70. I have a few sites under a contract doing different work. I get onto BUS because of one violation in a particular site. Does it mean that if I do not have enough work for that site to complete the BUS program, my other sites will have to substitute for it despite of different nature? Only other sites with similar nature of work will be considered as substitutes for the BUS program. However, under such situation, we will modify the Bus Programme as deemed appropriate. 71. Is it practical to impose stop work if the road is opened and need to be closed ASAP to meet regulatory requirements? Likewise, if it is a critical urgent work like supply restoration in the case of cable damage? We will review this on case by case basis if the work has to complete on time to meet regulatory requirement. 72. How does the BUS scheme help contractors instead of punishing them? In what way is it a partnership arrangement? The approach of BUS programme is correctional first. Contractors are will not put on BUS immediately. If they commit minor non-conformance, we will work with them to fix it on the spot. When committing major non-conformance, we will activate a safety pause with the aim to fix the non-conformance and educate their workers of the safe work procedures. In other words, contractors are given opportunities to make correction on the non-conformance. Our aim is to work with them to make their work safe. Only contractors who have repeatedly commit major non-conformance or critical violation will be put on BUS. 73. Why need to suspend me if I am on more than 2 BUS in a quarter? When a contractor is on BUS more than two times, it indicates that their safety capability or/and work quality is weak and so they may not be suitable to be our contractor. The suspension provides an opportunity to improve on their safety and work capability to make them a suitable contractor to SP. 74. If you keep sending us on BUS, how do complete our work? You cannot finish work when your execution is not safe. To be able to complete on time, one must make sure that the work is executed safely. The BUS program helps contractor fix the lapse when spotted and before next incident occurs.

Mentor gives out tough assignments to sharpen skills of next generation RELIABILITY On any given day, Senior Principal Engineer and Technical Expert Chua Khim Mong, would pose a hypothetical engineering problem in a group chat, challenging his team of technical officers and technicians to solve it. With nearly four decades of experience under his belt, Khim Mong believes tough assignments can help his mentees stretch their capabilities and grow in their careers. Senior Principal Engineer Chua Khim Mong (right) and Senior Engineer Chung Der Chyuan are amongst the 23 Technical Experts appointed to deepen SP’s engineering expertise. “I tell them to never be afraid of asking seemingly silly questions. The most valuable lessons are learned from questioning and probing,” shared Mr Chua. Read the full story on how mentors like Kim Mong are key in helping the next generation of engineers hone relevant skills and expertise on The Straits Times. TAGS RELIABILITY YOU MIGHT BE INTERESTED TO READ Ground feedback, digital tools: How she helps 8,000 workers end their day safely Faster repairs, fewer disruptions: Meet the innovative teams using smart tech to keep your piped gas supply flowing Engineer, 27, shares how she is undaunted by male-dominated energy industry & climbs the ranks

Consumption_Water Average consumption of Water (CuM) Premises Types Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 Feb-24 HDB 1-Room 7.3 7.9 8.0 8.1 8.0 7.9 8.0 8.0 8.0 7.8 7.8 8.0 HDB 2-Room 8.9 9.4 9.6 9.7 9.4 9.5 9.5 9.5 9.6 9.3 9.3 9.3 HDB 3-Room 11.6 12.3 12.2 12.5 12.1 12.4 12.4 12.4 12.3 12.0 12.0 12.2 HDB 4-Room 14.7 15.4 15.4 15.6 15.1 15.5 15.7 15.7 15.5 15.1 15.0 15.5 HDB 5-Room 16.1 16.9 16.7 16.9 16.3 16.8 17.1 17.1 16.9 16.4 16.1 16.7 HDB Executive 18.0 18.7 18.6 18.8 18.2 18.9 19.0 19.2 18.8 18.1 18.1 18.8 Apartment 13.5 14.0 13.7 13.7 13.2 13.3 13.7 13.9 13.7 13.1 12.8 13.1 Terrace 25.1 25.4 25.3 26.0 25.5 25.9 26.0 26.5 26.5 25.2 24.3 25.8 Semi-Detached 30.6 30.6 30.7 30.9 30.7 31.5 31.6 32.9 31.9 30.4 30.0 30.7 Bungalow 49.2 48.7 50.9 48.1 48.0 48.5 51.7 54.8 54.2 48.6 49.4 46.3

Media Release Electricity Tariff Revision for the Period 1 January to 31 March 2023 Singapore, 30 December 2022 – For the period from 1 January to 31 March 2023, electricity tariff (before GST) will decrease by an average of 2.7% or 0.79 cent per kWh compared with the previous quarter. This is due to lower energy costs compared with the previous quarter. For households, the electricity tariff (before GST) will decrease from 29.74 to 28.95 cents per kWh for the period 1 January to 31 March 2023. The average monthly electricity bill for families living in HDB four-room flats will decrease by $2.63 (before GST). *before GST SP Group reviews the electricity tariffs every quarter based on guidelines set by the electricity industry regulator, Energy Market Authority (EMA). Please refer to Appendix 1 for the components of the electricity tariff, Appendix 2 for the tariffs approved by EMA, and Appendix 3 for the average monthly electricity bills for households. Issued by: SP Group 2 Kallang Sector Singapore 349277 www.spgroup.com.sg APPENDIX 1 BREAKDOWN OF ELECTRICITY TARIFF 1. The electricity tariff consists of the following four components: Energy costs (paid to the generation companies): This component is adjusted quarterly to reflect changes in the cost of fuel and power generation. The fuel cost is the cost of imported natural gas, which is tied to oil prices by commercial contracts. The cost of power generation covers mainly the costs of operating the power stations, such as the manpower and maintenance costs, as well as the capital cost of the stations. Network costs (paid to SP Group): This is to recover the cost of transporting electricity through the power grid. Market Support Services Fee (paid to SP Group): This is to recover the costs of billing and meter reading, data management, retail market systems as well as market development initiatives. Market Administration and Power System Operation Fee (paid to Energy Market Company and Power System Operator): This fee is reviewed annually to recover the costs of operating the electricity wholesale market and power system. Q1 2023 TARIFF FOR HOUSEHOLDS (before 8% GST) APPENDIX 2 ELECTRICITY TARIFFS FROM 1 JANUARY 2023 APPENDIX 3 AVERAGE MONTHLY ELECTRICITY BILLS FOR HOUSEHOLDS TARIFF WEF 1 JANUARY 2023 (before GST)

AUTHORISATION AND INDEMNITY FORM Section A To be completed by Requestor Date: ______________________ I, _______________________________________________________________________ (Full Name and NRIC/FIN) undersigned Requestor, refer to utilities account no. __________________________________ (the “Account”) I am the: Registered account holder Authorised representative of the registered Account holder Next of kin of the registered Account holder who is deceased Payor of a payment that was made to the Account by mistake I hereby authorise SP Services Ltd to refund/transfer credit/debit balance¹ of $ ________________________ in the Account to the following Recipient: Name: __________________________________________ NRIC/FIN (if applicable): _________________________ Utilities account no. (if applicable): __________________________________________________________________ __________________________________________⁴ Signature of Requestor Section B To be completed by Recipient Date: ______________________ I, ______________________________________________________________________ (Full Name and NRIC/FIN) the undersigned Recipient/authorised representative of the Recipient¹, in consideration of SP Services Ltd acceding to the request set out in Section A, hereby undertake and agree for myself/on behalf of the organisation that I represent: (a) To accept the refund/transfer of the balance to myself/the nominated utilities account (b) To indemnify SP Services Ltd against all liabilities, claims, damages, and losses that may arise out of or in connection with SP Services Ltd acting on the request set out in Section A. I am the _________________________________________² and hereby confirm that I am authorised to represent ________________________________________________________³ on whose behalf I have signed this Section B. __________________________________________⁴ Signature of Recipient/Authorised Representative [1] Delete as applicable. [2] Insert designation of authorised representative, or “NA” if not applicable. [3] Insert name of organisation, or “NA” if not applicable. [4] By submitting this form, I consent to SP Services Ltd collecting, using, and disclosing my personal data as reasonably required to provide services, in accordance with the Personal Data Protection Act and SP Group’s data protection policy. Version 1.0/Dec 25

Energy Saving Tips for Consumers BEDROOM Air Conditioner • Use fans instead of air-conditioners to keep cool. • If using fans alone is not enough to keep cool, run the air-conditioner for about an hour before switching to the fan. • Service your air-conditioners regularly. Besides the filters, the condition of other components such as the refrigerant, pipe and motor also affects energy efficiency. • Clean the filters regularly. Dirty filters impede airflow and cause energy wastage • Set the air-conditioner temperature to 25℃ or higher. The lower the temperature, the more electricity used. • Choose an inverter air-conditioner. • Shut the doors and windows when using air-conditioners. Computer • Switch off your computer completely when not in use for long periods. • Enable the power management features of your computer, such as switching to lower power sleep mode or hibernation mode after idling for a certain amount of time (e.g., more than 5 minutes). • Choose a laptop over a desktop as laptops consume less electricity. Iron • Start with clothes that require lower temperatures (e.g., silk and wool) before ironing those that require higher temperatures (e.g., cotton). This will prevent unnecessary heating, cooling, reheating. • Select the temperatures for the various fabrics. Overheating the iron will not only waste electricity, but also damage your clothes. BATHROOM Water Heater • If you have an instantaneous water heater, switch it on before you shower and switch it off immediately after use. • Cut down on long showers. Taking shorter showers save both electricity and water. Did you know? Unlike instantaneous water heaters, storage water heaters continue to use energy to heat water when they are left switched on. KITCHEN Refrigerator • Cover liquids and food stored in the refrigerator. Uncovered items release moisture, forcing the compressor to work harder to keep the temperature low. • Allow food to cool before putting them into the refrigerator. Hot food causes the compressor to work harder to keep the temperature low. • Do not overload the refrigerator to ensure that cold air can circulate freely. • Do not place the refrigerator near heat sources such as stoves, ovens or direct sunlight. The higher the ambient temperature, the more energy the refrigerator consumes. Instead, place the refrigerator in a cool place with good circulation. • Allow some space around the refrigerator to enable heat to escape from the compressor and condensing coil. • Do not open the refrigerator door unnecessarily. • Do not leave the refrigerator door open longer than necessary. Decide what you need from the refrigerator beforehand. • Set the refrigerator to the recommended temperature. • Thaw frozen food in the refrigerator instead of using the microwave oven. • Ensure that your refrigerator door seals are airtight. Electric Airport • Boil water only when needed. • Use a thermal flask to store hot water. KITCHEN Cooking Habits • Cover the pot while cooking. Food cooks faster in covered pots. • Match the size of the pot with the size of the burner. Energy is lost when small pots are used on larger burners. • Use a microwave oven to cook or warm leftovers instead of a conventional oven. • Use an over timer instead of opening the oven door to check your food. • Clean your cooking appliances regularly so that heat can be transferred more efficiently. • Check the seal on your oven door for cracks or tears to retain heat more effectively. • Plan your cooking procedures and prepare your ingredients ahead to reduce unnecessary energy usage. Washing Machine and Dryer • Wash with an optimal laundry load to maximise energy savings. • Use the right amount of detergent to avoid washing or rinsing the load unnecessarily. • Pre-soak or use a soak cycle for heavily soiled garments to avoid two washing cycles. • Use the economy mode to save energy. • Select a clothes dryer with energy-saving features, such as the ability to strop drying once it senses that the clothes are sufficiently dry. • Dry with an optimal laundry load whenever possible. Save even more energy by air-drying lightweight items and using the clothes dryer only for heavier items. • Choose a clothes dryer of suitable capacity that meets your family needs. LIVING ROOM Lighting • Choose energy-saving lighting such as compact fluorescent lamps and LED bulbs. Avoid incandescent lamps. • Use dimmers, timers or sensors to control the level and duration of lighting needed. • Clean lamps and light fixtures regularly. Dust on lamps and reflectors reduces light transmission. • Whenever possible, use natural light for your lighting needs. Television • Dim the light while watching television. This saves electricity while cutting glare from the screen. • Always switch off your TV set-top box at the power socket as it consumes the highest standby power. • Lower the brightness and contrast settings of your TV. Standby Mode • Switch off your home appliances at the power socket when they are not in use. Standby power can account for up to 10% of your home energy use.

Consumption_Elect Average consumption of Electricity (kWh) Premises Types Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 Feb-24 Mar-24 Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 HDB 1-Room 127 142 152 147 145 143 146 144 135 126 126 132 150 152 149 140 151 148 139 142 128 127 121 119 HDB 2-Room 166 185 202 190 190 189 190 188 176 164 167 173 199 199 195 183 198 192 183 186 166 168 161 156 HDB 3-Room 242 270 288 271 272 269 274 269 247 236 241 250 292 285 277 264 283 277 266 266 243 238 231 231 HDB 4-Room 326 367 391 371 371 367 374 370 342 321 330 342 398 396 383 360 385 381 363 365 338 327 320 309 HDB 5-Room 381 428 456 437 434 427 437 436 401 367 381 399 463 466 448 416 447 446 427 429 397 379 374 359 HDB Executive 473 528 561 531 536 528 541 530 478 456 474 489 575 568 544 515 546 548 520 523 481 462 458 445 Apartment 465 543 585 546 514 515 537 541 483 430 435 486 578 573 543 500 513 539 523 519 486 446 419 417 Terrace 756 867 902 868 866 859 890 881 804 740 794 821 957 900 872 838 847 885 851 851 785 747 744 714 Semi-Detached 1,024 1,182 1,233 1,159 1,134 1,150 1,187 1,174 1,065 1,019 1,038 1,109 1,254 1,224 1,170 1,128 1,126 1,168 1,137 1,141 1,056 1,000 974 960 Bungalow 2,016 2,303 2,482 2,320 2,219 2,298 2,308 2,358 2,075 2,106 1,951 2,146 2,432 2,360 2,266 2,220 2,121 2,347 2,192 2,190 2,012 2,004 1,872 1,904

How to Apply For Electricity Connection This handbook is published by SP Group Jan 2026 Procedures and requirements highlighted in this handbook are correct at the time of printing. Any changes that may arise will be reflected in the next edition. ISBN: 981-04-6932 Important Contact Numbers Tel No General Enquiry Application for Connection to Transmission System 6916 7200 Consumer Connection Agreement Contracts Section 6916 7231 Testing and Turn-on Appointment Supply Application Section 6916 7200 Installation Section 6916 7744 / 6916 7430 Opening of Utilities Accounts Enquiry 1800-222 2333 Endorsement of Substation Drawings East zone 6916 8557 West zone 6916 8679 Installation of Meters Elect Meters 6916 8555 i Table of Contents 1. General Information ................................................................................................................................................... 1 1.1 Introduction .............................................................................................................................. 1 1.2 Connection Voltages and Supply Frequency .......................................................................... 1 1.3 Submission of Application........................................................................................................ 2 1.4 Provision of a Substation ......................................................................................................... 3 1.5 Domestic Premises and Load Requirement not exceeding 45kVA ......................................... 3 1.6 Meter ........................................................................................................................................ 3 1.7 Tariffs for Non-Contestable Customers ................................................................................... 4 1.8 Payments for Electricity Charges by Contestable Customers ................................................. 4 1.9 Opening Account and Payment of Security Deposit for Use of System (UOS) Charges ........ 4 1.10 Termination of Account ............................................................................................................ 5 1.11 Disconnection of Service Cables upon Termination of Account ............................................. 5 1.12 General .................................................................................................................................... 5 2. Application For Load Connection .......................................................................................................................... 7 2.1 Load Connection ...................................................................................................................... 7 2.2 Consultation ............................................................................................................................. 7 2.3 Application ............................................................................................................................... 7 2.4 Processing of Application ........................................................................................................ 8 2.5 Commencement of Work ......................................................................................................... 8 2.6 Type of Premises ..................................................................................................................... 8 2.7 Premises in Private Housing, Industrial Estates, Commercial Developments Requiring Provision of Low Tension (LT) Distribution Network ............................................................... 9 2.8 Provision of Substation .......................................................................................................... 10 2.9 Service Connection Cables ................................................................................................... 10 2.10 Opening of Account for Upgrading/ Downgrading of Electricity Supply (Assuming No Change in Contestability Status) ........................................................................................... 11 2.11 Consultation for Transmission Connection ............................................................................ 11 2.12 Application for Transmission Connection .............................................................................. 11 2.13 Lead-Time for Application of Transmission Connection ........................................................ 12 2.14 Technical Requirements of Distributed Generation and New Extra / Ultra High Tension Connection ............................................................................................................................. 13 2.15 Technical Requirements of Solar Photovoltaic (PV) Connection .......................................... 13 3. Transmission Charges .............................................................................................................................................. 14 3.1 Connection Agreement .......................................................................................................... 14 3.2 Use of System (UOS) Charges ............................................................................................. 14 4. Energisation and Turn-on Procedure .................................................................................................................. 15 4.1 General .................................................................................................................................. 15 4.2 Premises Electrical Installations that are previously Inspected and Energised .................... 15 4.3 Premises with Direct Connection from SPPA’S Transmission System ................................. 16 4.4 Non-Domestic Premises ........................................................................................................ 17 4.5 Booking an Appointment........................................................................................................ 18 4.6 Making an Appointment for Energisation of Service Connection Direct from SPPA’s Transmission System - Load Requirement not Exceeding 45kVA ........................................ 19 4.7 Load Requirement Exceeding 45kVA Up to 22kV Supply Voltage ....................................... 19 4.8 Submission of Application for New EHT and HT Consumers who wish to be Contestable at Time of Turn-On .................................................................................................................... 19 4.9 Premises with Indirect Connection - Load Requirement not Exceeding 45kVA (i.e. Premises in a Multi-Metered Development) .......................................................................................... 20 4.10 Load Requirement Exceeding 45kVA (Multi-Metered Building Scheme) .............................. 20 4.11 Modification to an Existing Electrical Installation ................................................................... 21 ii 4.12 Submission of Completion Certificate for Modification of Small Electrical Installation (Exempted from Licensing) .................................................................................................... 21 4.13 Licence to Use or Operate an Electrical Installation .............................................................. 21 4.14 Certificates and Statements for First Energisation of Service Connection ............................ 21 4.15 Statement of Turn-On of Electricity ....................................................................................... 22 4.16 Amalgamation of New and Existing Connections .................................................................. 22 4.17 Lead-Times for Application for Service Connection .............................................................. 22 4.18 Normal Lead Time for Energisation of Service Connection Up to 22kV ............................... 23 4.19 Fast Track Connection Scheme ............................................................................................ 24 4.20 Notes to be Read in Conjunction with Application Procedure ............................................... 25 4.21 Opening an Account .............................................................................................................. 25 4.22 Handover of Completed Substation ....................................................................................... 26 4.23 Installation of Current Transformer Operated Meters ............................................................ 27 4.24 Procedure for Application for Licence to Use or Operate an Electrical Installation ............... 27 4.25 Conditions for the Issue of the Licence ................................................................................. 27 4.26 Procedure for De-Energisation / Disconnection of Service Cables ....................................... 27 5. Customer's Installation Requirements ................................................................................................................ 28 5.1 Requirements for HT and LT Connection for 22kV and below .............................................. 28 5.2 Requirements for 22kV and 6.6kV Customer Connection ..................................................... 30 5.3 Requirements for LT Supply Connection ............................................................................... 31 5.4 Requirements for EHT Connection for 66kV and 230kV ....................................................... 31 5.5 Requirements for 66kV and 230kV Customer Connection.................................................... 32 5.6 Information on SPPA Network Earthing System for 230kV, 66kV and 22kV ........................ 33 6. Metering Requirements ......................................................................................................................................... 34 6.1 General .................................................................................................................................. 34 6.2 Location of Meter ................................................................................................................... 36 6.3 Grouped Location of Meters .................................................................................................. 37 6.4 Meter Service Board Specifications (Single-Phase and 3-Phase Services, not Exceeding 100A per Phase) .................................................................................................................... 40 6.5 Wiring, Layout of Meters, MCBs, etc. in Centralised Meter Rooms, Meter Compartments / Riser Ducts / Cupboards........................................................................................................ 40 6.6 Submission of Layout Plans .................................................................................................. 41 6.7 Meters for 3-Phase Low Tension Connection (Exceeding 100A per Phase) ........................ 41 6.8 Meter Installation Requirements ............................................................................................ 41 6.9 Low Tension Current Transformer Enclosure ....................................................................... 42 6.10 High Tension/ Extra-High Tension Metering.......................................................................... 43 6.11 Specifications for High Tension Metering Current Transformers .......................................... 43 6.12 Specifications for High Tension Metering Voltage Transformers .......................................... 44 6.13 Testing of Metering CTs and VTs’ ......................................................................................... 44 6.14 Miscellaneous Metering Requirements ................................................................................. 45 6.15 Contestable Customers ......................................................................................................... 46 6.16 Maintenance Procedure......................................................................................................... 47 7. Appendices ............................................................................................................................................................... 48 1 Letter of Consent for Submission of Application for Electricity Supply ............................................. 49 3 Letter of Consent from the Landlord / Management Corporation (Form CS/3) ............................ 50 4 Letter of Consent from Housing & Development Board (Form CS/3H) .............................................. 51 5 Request to Handover Substation ...................................................................................................................... 52 9 Types and Layout of Substation ........................................................................................................................ 53 10 Submission of Substation Site and Layout Plans .......................................................................................... 54 11 22kV/LV Substation (9 Drawings) ...................................................................................................................... 55 12 Heavy Aluminum Louvered Doors for Electric Substation (5 Drawings) ........................................... 64 13 Gate Details (1 Drawing) ........................................................................................................................................69 14 Checklist for Substation Building Plan Submission ..................................................................................... 70 15 Substation Layout Requirements to be Incorporated in the Architectural Plans ............................. 71 15.1 Wooden Mandrel ................................................................................................................................................... 75 15.2 Aluminium Louvre (Double Banked) for Switch Room… .......................................................................... 76 iii 16 General Requirements for Developing a Stand-alone Above-Ground Transmission Substation (66kV Only) ................................................................................................................................................................ 78 17.1 Engineering Requirements for Customer’s 22kV and 6.6kV Main Incoming Switchgear ............ 79 17.2 Engineering Requirements for Customer’s LV Main Incoming Switchgear ..................................... 80 17.3 Engineering Requirements (Type 1) - Customer 66kV Feeder Connection ....................................... 81 17.4 Engineering Requirements (Type 2) - Customer 66kV Feeder – Transformer Connection With 66kV Isolator / Circuit Breaker) .......................................................................................................................... 82 17.5 Engineering Requirements (Type 3) - Customer 230kV Feeder Connection ................................... 83 17.6 Engineering Requirements (Type 4) - Customer 230kV Feeder – Transformer Connection .... 84 19 Statement for De-Energisation/ Re-Energisation (SDRE)........................................................................... 85 20 Certificate of Readiness for the Energisation of Service Connection (COR) ....................................86 21 Request from Contestable Customer for Installation of Electricity kWH Meter (Form CS/6) .............................................................................................................................................................. 88 22 Request for Installation of Electricity kWH Meter for Load Exceeding 45kVA (Form CS/7) ...............................................................................................................................................................89 23 Application for Appointment for Energisation of Service Connection .............................................. 90 24 Technical Requirements for Service Cable and Meter Compartment for Landed Houses ......... 91 24.1 Standard Meter Compartments at Gate Pillar .............................................................................................. 92 25 Standard Meter Board ........................................................................................................................................... 93 26 Standard Size for Single-Phase Meter Board ............................................................................................... 94 27 Standard Size for Three-Phase Meter Board ................................................................................................. 95 28 CT Meter Panel for Low Voltage Supply ........................................................................................................96 29 Methods for Sealing Metering Panels ............................................................................................................. 97 30 Enclosure for Low Voltage Metering Current Transformers ...................................................................98 31 HV Metering Kiosk Requirements for 1 or 2 Feeders .................................................................................99 32 HV Metering Kiosk Requirements for 3 or 4 Feeders .............................................................................. 100 33 HV Metering Panel Requirements for 1 or 2 Feeders ............................................................................... 102 34 Metering VTs Voltage Ratio, Sequence & Phase Angle Tests Report ............................................... 103 35 Basis for the Service Connection Charge .................................................................................................... 104 36 Standard Service Connection Cables ............................................................................................................ 105 37 Certificate of Compliance (COC) .................................................................................................................... 106 38 Statement of Turn-On of Electricity (SOTO) ................................................................................................ 107 39 Requirements for Embedded Generation Facility / Intermittent Generation Sources (IGS) .... 108 39.1 Terms and Conditions for Capped Capacity Scheme (CCS)................................................................. 110 39.2 Terms and Conditions for Extended Capped Capacity Scheme (ECCS) .......................................... 112 40 Application for Electricity Installation Test up to 45kVA (Form CS/12) ............................................... 114 41 Application for Contestability Status & Market Support Services ........................................................ 115 43 Completion Certificate for Modification of Electrical Installation ....................................................... 122 44 Certificate of Fitness of Residential Unit (Form E) ...................................................................................... 123 45 Change in Design Licensed Electrical Worker ............................................................................................ 124 46 Technical Requirements of Distributed Generation and New Extra / Ultra High Tension Connection .............................................................................................................................................................. 125 iv 1. General Information 1 1.1 Introduction General Information 1.1.1 SP Services Ltd (SPSL), SP PowerAssets Ltd (SPPA) and SP PowerGrid Ltd (SPPG) are subsidiaries of Singapore Power Ltd. SPSL provides support services for the electricity market. It receives requests for electricity service connection; offers terms and conditions of service connection; arranges for service connection energisation/turnon; and collects transmission charges, security deposits and charges for other services on behalf of SPPA. SPSL also bills customers for consumption. SPPA is the Transmission Licensee and owner of the transmission and distribution network. SPPG, the managing agent for and on behalf of SPPA, develops, operates and maintains the transmission and distribution facilities. 1.1.2 The supply of electricity and electrical installation practices are governed by the Electricity Act and its subsidiary legislation. 1.1.3 “Customer” and “consumer” shall have the same meaning in this handbook. 1.2 Connection Voltages and Supply Frequency 1.2.1 In Singapore, customers’ installations are connected at the following voltages: (a) Transmission voltage of 66kV and 230kV (b) Distribution voltage of 230V, 400V, 6.6kV and 22kV (may vary within ± 6%) 1.2.2 The supply voltages are classified in the following categories: (a) Low Tension (LT) refers to 230V, single-phase and 400V, 3-phase (b) High Tension (HT) refers to 22kV and 6.6kV (c) Extra-High Tension (EHT) refers to 66kV (d) Ultra-High Tension (UHT) refers to 230kV 1 1.2.3 The following connection schemes are provided, according to customers’ load requirements. It shall apply to new and existing customers, including customers who are revising their Contracted Capacity. The power factor shall be based on 0.85. (a) Low Voltage, 50 Hz: • 230V, single-phase, up to a maximum of 23kVA, 100A • 400V, 3-phase, 4-wire system, up to a maximum of 5000kVA per substation (b) 22kV, 50 Hz, 3-phase, 3-wire system for a Contracted Capacity: • between 1,700kW and 12,750kW for 2 HT 22kV services • between 12,751kW and 25,500kW for 4 HT 22kV services (c) 66kV, 50 Hz, 3-phase, 3-wire system for a Contracted Capacity: • between 25,501kW and 84,999kW for service connection from the nearest feasible 66kV substation • between 85,000kW and 169,999kW for service connection from the nearest feasible 66kV source station (d) 230kV, 50Hz, 3-phase, 3-wire system for connection with minimum Contracted Capacity of 85,000kW 1.2.4 Where the customer requires a connection voltage and/or frequencies that differ from those specified above, the customer is required to provide, install and maintain the necessary transformation equipment. 1.3 Submission of Application 1.3.1 SPSL serves as a one-stop customer service centre. It receives all application forms on behalf of SPPA, and responds to all applications made by the Licensed Electrical Worker (LEW), who acts as the customer’s agent for connection to the transmission system. SPSL may, in its sole and absolute discretion, deal with the customer directly. 1.3.2 Customers applying for their installations to be connected to SPPA’s transmission system must submit their applications through their LEWs. Every application must be accompanied by all supporting documentation requested by SPSL, including a letter of consent as shown in Appendix 1. The applications must be submitted via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg. A user manual can also be downloaded from the website. 1.3.3 For data centre developments, customers will need to include IMDA acknowledgement email as part of application submission. Please refer to Singapore Power (SP) eBusiness Portal for more information. 1.3.4 For developments in the conception or planning stage for a new connection or an upgrade / increase in Contracted Capacity to an existing connection, the customer is advised to seek consultation regarding SPPA’s requirements. This includes considerations such as the provision of a substation, modifications to an existing 2 substation/connection, and lead time required for service connection, which is subject to network availability and includes any network reinforcement that may be necessary to support the intended load connection. The Consultation Form must be submitted by the customer’s LEW via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg. A user manual can also be downloaded from the website. 1.4 Provision of a Substation 1.4.1 Direct service connection from SPPA's LT network to the customer’s installation is available for a small load requirement not exceeding 280kVA (400A). However, the provision of a direct service connection is dependent on the available network capacity in the vicinity. If there is insufficient capacity, the customer is required to provide a substation for the connection. 1.4.2 For a larger load requirement exceeding 280kVA (400A), the customer has to provide a substation for SPPA to install necessary equipment to cater for the load. 1.5 Domestic Premises and Load Requirement not exceeding 45kVA 1.5.1 For premises where the electricity meter has already been installed by SPPA and no extension or rewiring work is required, customer may submit for an opening of utilities account to SPSL directly. Turn on of electricity service connection will happen on customer’s requested turn on date, subject to availability of appointment slots. 1.5.2 For premises where there is no electricity meter or where extension or rewiring work is required, the customer has to engage a LEW and submit an application for load connection. 1.6 Meter 1.6.1 All meters required for measuring a customer’s electricity consumption and demand (where applicable) are provided and maintained by SPPA. The customer has to provide meter boards, compartments, kiosks, etc. as SPPA requires them for the installation of its metering equipment. 1.6.2 Master- And Sub-Metering (a) A “Master-meter” is a meter measuring the consumption for all units and common areas in a building or cluster of buildings, which are used or occupied by multiple consumers. For master-metering scheme, the common services load must be at least 10% of the total load for the premise. (b) A “Sub-meter” is a meter measuring the consumption for a unit in a building or cluster of buildings used or occupied by multiple consumers, whose electricity is taken through a Master-meter. (c) A master and sub-metering scheme is applicable for multi-tenanted premises. Under this scheme, the electricity supply is metered at the intake point and each tenant’s supply is also separately metered and billed under the appropriate tariff. The owner/ developer/ landlord shall be billed for the difference in the consumption between the consumption metered at the intake point and the 3 summated consumption of the tenants. Where the owner/ developer/ landlord takes supply at high tension and is responsible for stepping down the supply to 230V/ 400V for distribution to tenants, a rebate of 2.5 % on the summated consumption of the tenants will be granted. (d) The owner/developer/MCST/landlord is to ensure that the owners (for selfoccupied units) or tenants (as the case might be) of individual units apply for the requisite utility account immediately upon taking possession of such units. The owner/developer/MCST/landlord is to maintain strict access controls over the switchboard, which contains the switches for the electricity supply from the main supply received from the network operator to the individual units at the supplied premises. The owner/developer/MCST/landlord shall be responsible for any charges arising as a result of unauthorised consumption of electricity by individual units or otherwise in the supplied premises. 1.6.3 Multi-Metered Premises The following are categories of multi-metered premises: (a) Residential premises which have landlord and tenant supply connections (b) Commercial complexes which have landlord and tenant supply connections (c) Multi-storey factories or industrial complexes which have landlord and tenant supply connections (d) All multi-metered premises fall under the Master and Sub-metering scheme with the exception of HDB residential premises. 1.7 Tariffs for Non-Contestable Customers 1.7.1 Tariffs are currently charged for low tension, high tension and extra-high tension electricity consumption. 1.7.2 Tariffs are subject to change and are published by SPSL quarterly. Online information on the latest electricity tariffs is available at www.spgroup.com.sg. 1.8 Payments for Electricity Charges by Contestable Customers 1.8.1 Contestable customer pays to SPSL or authorised retailers, charges for electricity consumption as ascertained by meters, and transmission charges and other fixed charges as determined by SPSL. Payment for electricity charges must be made on or before the due date specified in the bill. 1.9 Opening Account and Payment of Security Deposit for Use of System (UOS) Charges 1.9.1 The customer must open an account and place a security deposit for UOS charges with SPSL upon application for energisation of service connection. 4 1.10 Termination of Account 1.10.1 Non-contestable customers must give 4 business days' notice and contestable customers must give 7 business days’ notice to terminate an account. Termination can be submitted to SPSL via the digital channels available, unless the contestable customer is under an electricity retailer which in this case termination should be submitted to the electricity retailer. The customer must also request for removal of service cable (if necessary) upon notice to terminate the account. Upon receipt of a completed form, electricity supply will be terminated on the 8th business day for contestable customers. For High-Tension (HT) consumers, LEW is required to be present and to ensure the premise is ready for cut-off on the appointment date. 1.11 Disconnection of Service Cables upon Termination of Account 1.11.1 Disconnection work involves the de-energisation of service cables. It may also involve the removal of service cables and/or equipment if they are no longer required. 1.11.2 Where the removal of service cables and/or equipment is involved, the following are indicative lead times for the work: (a) After the de-energisation of LT service cable, the lead-time is about 5 business days for the removal of LT service cables where road-opening work is not involved. (b) Where road opening work is involved, a lead-time of 2 months is required. (c) After the de-energisation of 6.6KV and 22KV service cables, the lead-time is about 3 months. (d) For disconnection of 66kV and 230kV service cables, the lead-time for the deenergisation of service cables/ equipment is about 10 business days, subject to the approval of the Power System Operator (PSO). The subsequent removal of service cables and equipment will depend on the operational requirement and approval of the PSO. 1.11.3 Customers should take note the disconnection of service cables and termination of account are separate process. The respective lead time required must be catered for by the customer to the respective SP entities. 1.12 General 1.12.1 The customer agrees to comply with the terms of this document and to procure that its officers, agents and representatives shall so comply. 1.12.2 None of SPSL, SPPA, SPPG, Singapore Power Limited or any of Singapore Power Limited's affiliates (a "SP Entity") will be liable (including without limitation, for negligence or any other category of liability whatsoever) for any action taken by any of them under or in connection with the matters arising under or out of this document. No customer or any of a customer's officers, employees, agents or other representatives may take any proceedings against any officer, employee or agent of any SP Entity in respect of any act or omission of any kind by that officer, employee or agent in relation to any matter arising under or out of this document. 5 1.12.3 Each of SPSL, SPPA and SPPG retains the right, at its sole and absolute discretion, to amend, vary and/or supplement any terms of this document from time to time and its interpretation of any terms of this document shall be final and binding. 1.12.4 No failure on the part of each of SPSL, SPPA and SPPG to exercise, and no delay on its part in exercising, any right or remedy under this document will operate as a waiver thereof, nor will any single or partial exercise of any right or remedy preclude any other or further exercise thereof or the exercise of any other right or remedy. The rights and remedies provided to SPSL, SPPA and SPPG in this document are cumulative and not exclusive of any other rights or remedies (whether provided by law or otherwise). 1.12.5 Nothing in this document shall in any way affect the obligations of a customer and its officers, employees, agents or other representatives to comply with applicable provision of the Electricity Act and all regulations and codes promulgated thereunder. 6 2. Application For Load Connection 2 Application for Load Connection 2.1 Load Connection 2.1.1 Each premise, as identified by the house or block number issued by IRAS, is limited to a single customer intake connection point. For modification of connection (such as upgrading of the load requirement) to existing premises, the customer is required to amalgamate all existing service connection into one intake. 2.2 Consultation 2.2.1 For developments in the initial planning stage, the customer is advised to seek consultation with SPPG to ascertain SPPA‘s requirements for a new or modified connection to the transmission system. This includes considerations such as the provision of a substation, modifications to an existing substation/connection, and lead time required for service connection, which is subject to network availability and includes any network reinforcement that may be necessary to support the intended load connection. The LEW is required to submit the online Consultation Form via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg, together with a site/location plan to SPPG. 2.2.2 After receipt of the submission for consultation, SPPG will send a reply stating the approved load and other technical requirements, such as the provision of substation requirements necessary for the load connection to the transmission system. 2.3 Application 2.3.1 The online Application Form 1 together with a letter of consent (Appendix 1) and a copy of the site/ location plan must be submitted via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg by the LEW for new or modified connections of new or existing premises to the transmission system. 1 The 5-year load projection provided by the Customer in the CS1 application form is for planning purpose. Securing of network capacity is achieved by confirmation of Contracted Capacity in Customer Connection Agreement or approval of Revision of Contracted Capacity by the Transmission Licensee. 7 2.3.2 For data centre developments, customers will need to include IMDA acknowledgement email as part of application submission. Please refer to Singapore Power (SP) eBusiness Portal for more information. 2.4 Processing of Application 2.4.1 Generally, SPSL responds to applications within 10 business days. 2.4.2 The responses are made according to the following customer categories: (a) Contestable Customer • A Consumer Connection Agreement, containing the service connection charge payable, the offer letter and the standard terms and conditions with respect to the distribution service connection. • If a substation is required, a letter stipulating the requirements will be forwarded to the customer. It will be followed by an Agreement subsequently after the substation plans are endorsed. (b) Non-Contestable Customer • A Quotation, containing service connection charge payable and the conditions of service with respect to the distribution service connection. • If a substation is required, a letter stipulating the requirements will be forwarded to the customer. A Supply Agreement including the service connection charge payable and the terms & conditions with respect to the distribution service connection, is offered after the substation plans are endorsed. 2.5 Commencement of Work 2.5.1 SPPG commences work only when the Agreement has been signed and received by SPSL, together with payment of service connection charges. 2.6 Type of Premises 2.6.1 Multi-Metered Premises (a) Multi-metered premises are premises where the landlord/ MCST (i.e. a mastermetered consumer or directly connected consumer) receives bulk intake service connection from SPPA, and transforms/ reticulates the supply to all the tenants (i.e. sub-metered consumers) within the premises. Any application for new or modified connection (includes upgrading) for the bulk intake to the multi-metered premises must be made by the landlord through its LEW. (b) A master-metered consumer means a consumer that is responsible for the common usage of a master-metered installation, which is connected to the transmission system. 8 (c) A master-metered installation means an installation in which supply is received by a master-metered consumer and sub-metered consumers (d) A master-metered installation shall have an independent address and its own dedicated access. (e) A sub-metered consumer means a consumer, other than a master-metered consumer, that receives supply in a master-metered installation via the electrical system owned by a master-metered consumer. 2.6.2 The landlord/ MCST or HDB, in the case of HDB premises, must ensure that the total applied load requirement for service connections to the multi-metered premises meet the total existing and future load requirements for all tenants. All tenants applying for any upgrading of load must do so through their master-metered consumer. In this regard, the master-metered consumer must approve the load of all tenants within the premises. 2.6.3 If the landlord’s existing approved load is insufficient to cater for the tenants’ load requirement, the landlord, as a master-metered consumer, must submit an application to SPSL for modification (upgrading) of service connection to the existing premises. In this case, the existing service cables are amalgamated with the new intake. Hence, there will not be separate direct connections to the tenants of such premises. 2.7 Premises in Private Housing, Industrial Estates, Commercial Developments Requiring Provision of Low Tension (LT) Distribution Network 2.7.1 For connection to premises where several parcels of land are to be sold or leased individually, one or more substations must be provided by the developer. Where the individual parcels of land are to be sold prior to development of these substations, details of the substation requirements and approved load must be included in the sales agreement by the future land parcel’s owner or lessee. 2.7.2 The developer must provide the development’s total load requirement and include the breakdown of the individual premises’ load requirement (as specified in the sales agreement) and the communal load requirement, if applicable. 2.7.3 In the case of landed housing estate development, the LEW must liaise with relevant Authorities, applicant’s appointed Architects/Civil & Structural Qualified Person and owner of the house for the siting of proposed overground distribution boxes on turfed areas. SPPA will provide and install the LT distribution network and service connection cables for the development. 2.7.4 Premises Involving Temporary Connection with Provision of Substation: (a) Special terms and conditions apply in such cases for temporary connection to construction worksites and other temporary premises. The term granted for temporary connection is usually 24 months. (b) Where there is a need for the provision of a temporary substation, the customer must provide the site and construct the structure of the substation according to the requirements of SPPA. 9 (c) There will be a need to install the necessary cables and equipment to facilitate the temporary connection to the distribution network. The customer pays outright costs for the cables and a monthly hiring charge for the use of the equipment during the term for temporary connection. 2.7.5 Developers are advised to connect residential developments to the LT distribution network. Opting for a HT supply intake setup will subject the landlord/MCST to the following: (a) Monthly Contracted Capacity charges (b) Operating costs associated with HT equipment setup 2.8 Provision of Substation 2.8.1 When an application for load connection necessitates the provision of a substation (Appendices 9 and 10), a site must be provided and a substation constructed by the customer at its own cost. 2.8.2 The customer can either choose his substation to be a dedicated or non-dedicated one (Appendix 35). If the customer opts for a dedicated substation, he has to inform SPPG when he applies for connection. Otherwise, it shall be assumed that the substation would be non-dedicated. 2.8.3 The substation is to be sited at an inconspicuous location, away from the main entrance of the development and major public roads. It is recommended to harmonise, blend and integrate the substation with the overall design of its development. The siting of the substation must ensure continuous and unobstructed vehicular access to the substation and the associated lead-in pipes at all times, to facilitate equipment delivery, operational activities, maintenance and cabling works by SPPG. 2.8.4 SPPG’s officers and vehicles will have full and unrestricted access to the substation at all times (Appendix 15). 2.9 Service Connection Cables 2.9.1 Generally, SPPA supply, install and maintain customer service cable. However, if the customer’s switchroom is not abutting to SPPA’s switchroom or at different level to the substation building, or service cable to be installed in cable tray/ ladder, or the cable termination to the customer switchboard is not via bottom entry, the customer shall supply, install and maintain the service cable. In the event that customer supplies the service cable, the customer’s LEW shall ensure that the service cable complied with SPPA cable specification, and submit cable sample and specification to Distribution Engineering Section for approval prior to procurement. The general type of cables for service connection is shown in Appendix 36. 2.9.2 For service cable that is supplied, installed and maintained by SPPA, customer shall provide UPVC lead-in pipes from intake point to 300mm beyond boundary line or the roadside drain abutting public road at a depth not exceeding 2.0m from the finished road level. All installed pipes to pass through Mandrel Tests prior to inspection by SPPG (see Appendix 15.1). For service connection at 66kV or above, the lead-in pipes shall 10 be installed under drain / box culvert / utility service duct immediately outside site boundary and are to be extended up to 300mm beyond the road kerb where applicable. 2.9.3 Draw pit(s) shall be provided strategically including each turn of the service cable to facilitate the installation of the service cable. 2.9.4 The distance between surface of trench and service cable termination point shall be at least 900mm. 2.10 Opening of Account for Upgrading/ Downgrading of Electricity Supply (Assuming No Change in Contestability Status) 2.10.1 The consumer is not required to open a new account if the electricity supply remains at low voltage (LV) 2.10.2 The consumer is required to open a new account if the electricity supply is upgraded from LV to high voltage (HV), and the existing LV supply is cut off before the new HV supply is turned on. 2.10.3 The consumer is required to open a new account if the electricity supply is changed from LV to HV, HV to LV or HV to HV at different voltage level (e.g. 6.6kV to 22kV), when the new and existing supply intakes are to run concurrently during transition period. 2.11 Consultation for Transmission Connection 2.11.1 A customer may choose to seek preliminary comments from SPPG via the connection consultation process before submitting a formal application. This practice is encouraged as incorporating SPPA’s requirements in a developer’s preliminary proposal would expedite the application process at a later stage. 2.11.2 To initiate the connection consultation process, the customer has to submit the online Consultation Form through an LEW via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg. 2.12 Application for Transmission Connection 2.12.1 The following are steps in the application for service connection: (a) The customer submits the online Application Form 2 through an LEW via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg, together with a letter of consent (Appendix 1) and IMDA acknowledgement email (for data centre applications only). 2 The 5-year load projection provided by the Customer in the CS1 application form is for planning purpose. Securing of network capacity is achieved by confirmation of Contracted Capacity in Customer Connection Agreement or approval of Revision of Contracted Capacity by the Transmission Licensee. 11 (b) A connection proposal, duly endorsed by the PSO, is given to the customer. It outlines the connection scheme, connection voltage, connection equipment and facilities required of the customer and the estimated connection charges. SPPG endeavours to respond to the customer within 60 business days and 100 business days for 66kV connections and 230kV connections respectively. 2.12.2 Where the application requires the provision of an EHT substation, the customer must adhere to the general requirements (Appendix 16). 2.12.3 Once customer acknowledges acceptance of SPPG’s connection proposal, SPPG proceeds to execute the Consumer Connection Agreement through SPSL. The Agreement contains an Offer Letter, the standard terms and conditions associated with the connection and an estimation of the connection charges. 2.13 Lead-Time for Application of Transmission Connection 2.13.1 The timely provision of electricity supply to a development involves the joint efforts of SPSL, SPPG, and the customer and their agents, such as the LEW. While SPSL and SPPG will make every effort to engineer and implement the connection scheme, it is at the same time essential for the new customers and their agents to co-operate via timely submission of applications and plans, timely acceptance of the terms and conditions of connection and compliance with the necessary SPPA or Transmission Code requirements. It is the responsibility of the customers to manage and direct their agents to ensure that their agents comply with the necessary SPPA or Transmission Code requirements. 2.13.2 As a guide for the customer and their agents, the typical lead-times for the events leading to the energisation of 66kV service connections, for a service cable length of approximately 2km, are listed in the box below. The actual lead time for energisation may vary for each connection, depending on the actual service cable length and the progress of intermediate events leading to completion of service connection works. Customers will be informed accordingly either at the point of application or at any time a review is required. For 230kV service connections, the customer will be informed of the lead-time only at the point of application. 2.13.3 Estimated Lead Time for Energisation of 66kV Service Connection Events New 66kV connection from SPPA’s nearest existing substation From day of execution of consumer connection agreement to energisation of service connection 26 Months 1 Notes: 1 Lead time is based on a service cable length of approximately 2km and is subject to change based on length of service connection cables. Note that this lead time excludes additional time required to comply with requirement from URA Infrastructure Planning Authority Group (IPAG). The customer needs to consult SPPG at least 5-8 years in advance to cater for advanced planning. 12 2.14 Technical Requirements of Distributed Generation and New Extra / Ultra High Tension Connection 2.14.1 The details of technical requirements at the electricity supply network Point of Common Coupling (PCC) for Distributed Generation (DG) and New Extra / Ultra High Tension (EHT/UHT) connection are highlighted in Appendix 46. 2.14.2 The Consumer shall ensure that multiple sources of transmission, and/or distribution, systems are not connected in parallel at any time, and that any switching between circuits is undertaken on “black changeover” or “break before make” basis. 2.14.3 Some of the requirements are covered in the Transmission Code issued by Energy Market Authority (EMA). The appointed LEW shall ensure the connection is compliant with the Transmission Code, and shall consult SP Group with regards to the application process and technical requirements if further clarifications are required. 2.15 Technical Requirements of Solar Photovoltaic (PV) Connection 2.15.1 The details of technical requirements at the electricity supply network Point of Common Coupling (PCC) for Solar Photovoltaic (PV) connection are highlighted in Appendix 39 & Appendix 46. For more information on PV requirements, please refer to the SP Group website at www.spgroup.com.sg. The appointed LEW shall ensure the technical requirements are to be fully compliant. In the event of non-compliance of the technical requirements, the appointed LEW shall disconnect the Solar PV Connection until all technical requirements are met. 2.15.2 Some of the requirements are covered in the Transimission Code issued by Energy Market Authority (EMA). The appointed LEW shall ensure the connection is compliant with the Transmission Code, and shall consult SP Group with regards to the application process and technical requirements if further clarifications are required. 2.15.3 The appointed LEW is required to ensure the Low Tension embedded Solar PV Connection (converted to kVA) shall not exceed the premise’s/precinct’s approved load. 2.15.4 The appointed LEW shall ensure that the Solar PV Connection’s generation is balanced on all High Tension (HT) service connection cables at all times. 2.15.5 The appointed LEW is required to ensure the Solar PV Connection’s generation shall be disconnected automatically in the event of loss of supply from the grid. 13 3. Transmission Charges 3 Transmission Charges 3.1 Connection Agreement 3.1.1 All consumers are required to enter into a Connection Agreement with SPPA and pay Use of System (UOS) charges. All consumers having a direct connection to the transmission system must also pay a service connection charge. 3.1.2 The Connection Agreement for consumers taking HT supply at 6.6 kV or 22 kV, EHT supply at 66 kV or UHT supply at 230 kV and above will, inter alia, state the Contracted Capacity, which is deemed to be the requirement for a period of five years. Consumers cannot reduce their Contracted Capacity until the expiry of the 5-year binding period. Furthermore, a consumer who terminates the Connection Agreement during the 5-year binding period will be required to pay SPPA through SPSL/Retailer, the Contracted Capacity Charge for the unexpired portion of the 5-year binding period. 3.1.3 UOS charges are payments for the use of transmission services. The UOS charges are paid for electricity transmission services at each metered intake supply point in accordance with the voltage at which a consumer receives the electricity supply. The UOS charges are subject to annual review and the revised UOS charges will be published by SPPA. 3.1.4 In the case of HT and EHT supply to multi-metered premises, the landlord has to enter into a Connection Agreement for the network capacity required for his own load only, i.e. supply for common services, etc. 3.2 Use of System (UOS) Charges 3.2.1 The UOS charges shall be paid for electricity transmission services at each metered intake supply point in accordance with the voltage at which a consumer receives the electricity supply. Please refer to the Transmission Service Rate Schedule set out on the www.spgroup.com.sg/resources website. 14 4. Energisation and Turn-on Procedure 4 Energisation and Turn-On Procedures 4.1 General 4.1.1 The term ‘energise’, in the case of a customer’s installation that is directly connected to the transmission system, refers to the closing of a circuit breaker or other isolating device that is owned and controlled by SPPA. “Energisation”, “de-energisation” and “re-energisation” and all grammatical variations of the term shall be interpreted accordingly. 4.1.2 Arrangements need to be made with SPSL for energisation of the service connection and turn-on of a customer’s electrical installation. This is taken care of by the LEW. 4.2 Premises Electrical Installations that are previously Inspected and Energised 4.2.1 Non-Domestic Premises with Load Requirement not exceeding 45kVA, and Domestic Premises where Electrical Installations are provided and Pre-Inspected or Previously Inspected and Energised (a) This category includes all new HDB apartments and dwelling units in some private residential developments where electrical installations are provided and inspected in advance. It also includes non-domestic premises with supply capacity not exceeding 45kVA and domestic premises where the existing electrical installations and service connections are intact and only the supply is required to be re-energised. (b) The customer has to open an account with SPSL for electricity service connection (Appendix 6). (c) The customer is given an appointment for turn-on of service connection. For electrical safety reasons, the customer or his representative must be present at the premises for the turn-on of electricity service connection. 4.2.2 Non-Domestic Premises with Load Requirement exceeding 45kVA where Electrical Installations are previously inspected and energised (a) This category includes non-domestic premises (supply capacity exceeding 45kVA) where the existing electrical installations, meters and service connections are intact and only the supply is required to be re-energised. (b) The customer has to open an account with SPSL for electricity service connection (Appendix 6). 15 (c) The customer has to apply for a licence from Energy Market Authority (EMA) to use or operate the electrical installation through an appropriate class of licensed electrical worker. (d) Upon submission of the licence, the customer is given an appointment for turnon of service connection. The licensed electrical worker must be present at the premises to issue a copy of the licence to SPSL during the turn-on of electricity service connection. 4.2.3 Non-Domestic Premises with Load Requirement exceeding 45kVA where Electrical Installations are previously inspected and is still energised (a) This category includes non-domestic premises (supply capacity exceeding 45kVA) where the existing electrical installations, meters and service connections are intact and a new customer is taking over the electrical installation. (b) The new customer has to open an account with SPSL for electricity service connection. (c) The new customer has to apply for a licence from Energy Market Authority (EMA) to use or operate the electrical installation through an appropriate class of licensed electrical worker. (d) Upon submission of the licence, the new customer is given an appointment date for meter reading for account transfer. The licensed electrical worker or a customer/representative must be present at the premises to issue a copy of the licence to SPSL. (e) If an AMI meter is installed at the premise, a copy of the licence must be submitted together with the account opening form before an appointment date can be given to effect the account transfer. 4.3 Premises with Direct Connection from SPPA’S Transmission System 4.3.1 Domestic Premises (all load requirements) (a) The customer opens an account with SPSL, if an account has not already been opened. (b) Upon completion of the electrical installation and receipt of notification from SPPG on energisation/ readiness of the service connection, the LEW books an appointment with SPSL for inspection and turn-on of the customer’s installation. (c) For load below 45kVA, this is done by submitting online Form CS/5 Application for Inspection of Electrical Installation via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg, together with a letter of consent (Appendix 1) and the Certificate of Compliance, COC, (Appendix 37) to Supply Application of SPSL. Application for Electrical Installation Inspection test up to 45kVA (Appendix 40) is also required. For retest application, the required documents for submission to be sent via email to install@spgroup.com.sg are Certificate of Compliance, COC, (Appendix 37), receipt for payment of retest fee and Application for Electrical Installation Inspection test up to 45kVA (Appendix 40). 16 (d) For load above 45kVA, this is done by submitting the Inland Revenue Authority of Singapore, IRAS, letter stating the official addresses, COC, Form E – Certificate of Fitness of Residential Unit (Appendix 44) and the as-build Single Line Drawing, SLD, to Elect Installation Section of SPSL. 4.3.2 The electrical installation is connected to SPPA’s transmission system on the scheduled turn-on date if the electrical installation is safe to receive electricity supply. 4.3.3 The LEW must be present during inspection of the electrical installation by SPSL. For electrical safety reasons, the customer or his representative must also be present at the premises for the turn-on of electricity service connection. A ‘PASS’ Inspection Report will be issued by SPSL on-site upon successful turn-on of the customer’s installation. 4.4 Non-Domestic Premises 4.4.1 Load Requirement Not Exceeding 45kVA (a) The customer opens an account with SPSL, if this has not already been done. (b) Upon completion of the electrical installation and receipt of notification from SPPG on energisation of the service connection, the LEW books an appointment with SPSL for inspection and turn-on of the electrical installation. (c) This is done by submitting online Form CS/5– Online Application for Inspection of Electrical Installation via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg, together with a letter of consent (Appendix 1) and the COC form (Appendix 37) to Supply Application of SPSL. Application for Electrical Installation Inspection up to 45kVA (Appendix 40) is also required. 4.4.2 The electrical installation is connected to SPPA’s transmission system on the scheduled turn-on date if the electrical installation is safe to receive electricity supply. The LEW must be present during inspection of the electrical installation by SPSL. For electrical safety reasons, the customer or his representative must also be present at the premises for the turn-on of electricity service connection. A ‘PASS’ Inspection Report for the customer’s installation is issued by SPSL upon successful turn-on. 4.4.3 Load Requirement Exceeding 45kVA (a) The customer submits an application for an account, to SPSL if this has not already been done, and applies for a licence from Energy Market Authority (EMA) to use or operate an electrical installation. (b) Upon completion of the electrical installation and receipt of notification or advance notification from SPPG on the readiness of service connection, the LEW must inspect and test the electrical installation before booking an appointment with SPSL’s Elect Installation Section for the installation of meter and energisation of service connection by SPPG. This is done by submitting a letter confirming the readiness of the service connection and the COC form. Alternatively, the LEW can submit the Application for Appointment for Energisation of the Service Connection (Appendix 23) by email to largeinstall@spgroup.com.sg. 17 (c) The LEW requesting for energisation of supply line has to arrange for the LEW responsible for the operation of the electrical installation and the customer (or his representative) to be present during the energisation. (d) The electrical installation is connected to SPPA’s transmission system on the scheduled energisation date if the electrical installation is safe to receive electricity supply. The LEW must issue a Certificate of Readiness (COR) form (Appendix 20) to SPPG at site, prior to energisation of the service connection. (e) Upon successful energisation of service connection to the customer’s installation from SPPA’s direct connection, all parties are to acknowledge on the Statement of Turn-On of Electricity. 4.5 Booking an Appointment 4.5.1 Before booking an energisation and turn-on appointment, the LEW must ensure the following: (a) Metering requirements, where applicable, have been submitted and formal clearance has been given by SPPG’s Electrical Meters Section. All necessary meters have been installed. (b) The customer’s main incoming switchgear, protection system and earthing system have been successfully tested by an LEW. The HT metering panel has been provided, and testing of the metering current transformers/voltage transformers have been carried out and meters installed by Electrical Meters Section. (c) The service cables to the installation are ready to be energised. (d) A utilities account has been opened, an Agreement has been signed, and a security deposit for UOS charges has been paid by the customer. (e) A licence to use or operate the electrical installation, where applicable, has been obtained from EMA. (f) For service connection at a system voltage level of 66kV and above, the final clearance for the EHT switching procedure must be obtained from the PSO prior to the confirmation of the first energisation date. Notes: • The EHT switching procedure must be jointly prepared and endorsed by the LEW, who is authorised to perform EHT switching (at customer’s installation), and SPPG’s Project Engineer. • For 66kV and above, the LEW must submit the COC form to SPPG’s Project Engineer. 18 4.6 Making an Appointment for Energisation of Service Connection Direct from SPPA’s Transmission System - Load Requirement not Exceeding 45kVA To make an appointment to turn-on electricity supply, the LEW shall submit online Form CS/5 – Online Application for Inspection of Electrical Installation on behalf of the customer, together with a letter of consent (Appendix 1) and the COC form (Appendix 37), to request for an inspection and turn-on to the premises. The LEW is required to submit application via online portal at Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg. 4.7 Load Requirement Exceeding 45kVA Up to 22kV Supply Voltage 4.7.1 An appointment for energisation of electricity service connection of load requirements greater than 45kVA and up to 22kV supply voltage can be made as follows: (a) LEW can submit the Application for Appointment for Energisation of the Service Connection (Appendix 23) together with COC Form (Appendix 37) and relevant supporting documents by email at largeinstall@spgroup.com.sg to Elect Installation Section. The original copy of the COC Form must be submitted to SPPG on the scheduled energisation date. (b) A lead-time of 14 business days is required for the LEW to request for the energisation of SPPA’s service connection and turn-on of the customer’s installation. (c) Energisation of service connection involves several parties. An officer at SPSL’s Elect Installation Section co-ordinates with SPPG for the energisation of the service connection for supply taken directly from SPPA’s transmission system. 4.8 Submission of Application for New EHT and HT Consumers who wish to be Contestable at Time of Turn-On 4.8.1 The LEW shall proceed to liaise directly with Electrical Meters Section of SPPG to have the AMI meter installed. 4.8.2 Upon completion of the installation of the AMI meter, the consumer shall submit a copy of the duly completed APPLICATION FOR CONTESTABILITY STATUS & MARKET SUPPORT SERVICES ("MSS") ACCOUNT (Appendix 41) to MSSL Ops at contestableappln@spgroup.com.sg at least 12 business days prior to your arrangement for the turn-on appointment. 4.8.3 If the customer chooses to purchase electricity from a Retailer with effect from the turn-on date, the Retailer must submit the contestability application detailed in Section 4.8.2 minus the security deposit on behalf of the customer to MSSL Ops. Thereafter the Retailer must submit the electronic business transaction for a transfer request to SPSL at least 1 business day before the turn-on date. 4.8.4 Otherwise, SPSL will arrange to buy electricity for the customer from the wholesale electricity market and the customer will be charged for the electricity consumption at prevailing wholesale spot prices. In this case, a security deposit to SPSL is required. 19 4.8.5 The LEW shall proceed to apply to EMA for EI Licence. 4.8.6 The LEW shall submit a copy of COC, EI Licence, IRAS’s Letter stating official address and book an appointment for energisation of service connection via email at largeinstall@spgroup.com.sg to Elect Installation Section of SPSL for HT Supply or at respective Regional Projects Section (East/West) of SPPG for EHT Supply. 4.9 Premises with Indirect Connection - Load Requirement not Exceeding 45kVA (i.e. Premises in a Multi-Metered Development) 4.9.1 The customer opens an account with SPSL if this has not already been done. 4.9.2 The customer submits online Form CS/5 – Online Application for Inspection of Electrical Installation via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg through the LEW together with a Letter of Consent from the Landlord/Management Corporation or HDB (Appendices 3 and 4). The LEW can also book an appointment for inspection of the electrical installation at the time of submission of the application and, in the meantime, proceed to carry out the wiring/extension work. 4.9.3 The LEW is responsible for arranging the energisation of the service connection with the relevant party responsible where connection is taken via the landlord’s switchboard - such as in HDB, JTC or other private multi-metered buildings. 4.9.4 Service connection will be turned-on on the scheduled inspection date if the electrical installation is safe to receive electricity supply. The LEW must be present during the inspection. A ‘PASS’ Inspection Report for the customer‘s installation will be issued by SPSL upon successful turn-on. The LEW must issue a Statement of Turn-On of Electricity and this must be acknowledged by the relevant parties. 4.10 Load Requirement Exceeding 45kVA (Multi-Metered Building Scheme) 4.10.1 When the premise is ready for installation of meters, the customer shall proceed to open a utilities account with payment of security deposit to SPSL. 4.10.2 The LEW shall proceed to apply to EMA for EI Licence before the electricity supply is turned on. 4.10.3 The LEW shall submit Form CS/3 (Appendix 3) or Form CS/3H (Appendix 4), Form CS/7 - Request for Installation of Electricity kWh Meter (for Load Exceeding 45kVA) (Appendix 22) and a copy of COC and EI Licence to SP Services declaring the account activation date (which is the proposed turn-on date). 4.10.4 The LEW shall proceed to liaise with Electrical Meters Section of SPPG to install meters. 4.10.5 For HT Supply, the consumer is required to sign an agreement with SPPG before SP Services can process the application for installation of TOD meter. 4.10.6 The LEW shall be responsible for arranging the energisation of the service connection with the relevant party where the connection is taken via landlord’s switchboard such as HDB, JTC or private multi-tenanted buildings. 20 4.10.7 Landlord’s LEW shall issue the Statement of Turn-On of Electricity (SOTO) upon successful turn-on. 4.11 Modification to an Existing Electrical Installation 4.11.1 Modification work (e.g. extension, rewiring, shifting of meter) carried out to an existing electrical installation where a licence to use or operate is not required, must be inspected by SPSL before the new/modified portion of the wiring can be used. 4.11.2 The LEW must submit an application for inspection online Form CS/5 via Singapore Power (SP) eBusiness Portal at www.spgroup.com.sg together with a letter of consent (Appendix 1) for the modified electrical installation. 4.12 Submission of Completion Certificate for Modification of Small Electrical Installation (Exempted from Licensing) 4.12.1 The LEW shall submit to SPSL the duly completed online Form CS/5, together with Form CS/3 (Appendix 3) or Form CS/3H (Appendix 4) and the Completion Certificate for Modification of Electrical Installation (Appendix 43) on behalf of the customer. (Note: First-time inspection is free-of-charge and Form CS/3 or Form CS/3H is not required for HDB residential premises) 4.12.2 SPSL conducts spot-checks for those system-selected applications. 4.12.3 For those applications not selected, acknowledgement letters will be sent to both the customer and the LEW. 4.12.4 If the inspection is “Failed”, the LEW will have to come to SPSL with a copy of the “Failed” letter to arrange for a re-inspection. A re-inspection fee is payable. 4.12.5 If the inspection is “Passed”, acknowledgement letter will be sent to both the customer and the LEW. 4.13 Licence to Use or Operate an Electrical Installation 4.13.1 For service connection to non-domestic premises, residential buildings and condominiums with an approved load greater than 45kVA, and temporary connection for building construction and engineering work, irrespective of connection load, the customer must obtain a licence from EMA to use or operate the electrical installation. 4.13.2 It must be noted that SPPG cannot energise the service connection until such a licence is issued to the customer. 4.14 Certificates and Statements for First Energisation of Service Connection 4.14.1 Certificate of Compliance (COC) The LEW must ensure that the electrical installation complies with the requirements of the Electricity Regulations, Singapore Standards 638, relevant technical requirements and all other applicable standards. This compliance must be made in the COC form 21 (Appendix 37). The copy of COC form shall be submitted to SPPG through SPSL when requesting for an energisation appointment and the original COC must be handed over to SPPG on the actual date of supply energisation. 4.14.2 Certificate of Readiness (COR) The LEW has to certify the readiness of the installation. This certification must be made in the COR form (Appendix 20). The LEW must hand over the COR form to SPPG’s Project Officer on the actual date of first energisation. 4.15 Statement of Turn-On of Electricity 4.15.1 Immediately after the successful first energisation of the service connection, SPPG will issue a Statement of Turn-On of Electricity (Appendix 38). All parties are to acknowledge by signing the form. The completed form will be given to all parties and a copy forwarded to SPSL. 4.16 Amalgamation of New and Existing Connections 4.16.1 The customer/LEW shall ensure there is only one customer’s intake connection point for the premise after the energisation of the new/upgraded connection. The customer/LEW shall inform the assigned SPPG Project Officer immediately to remove the existing connection upon energisation of the new/upgraded connection. The customer/LEW is not allowed to remove the existing connection at their own initiative. 4.17 Lead-Times for Application for Service Connection 4.17.1 The timely provision of electricity supply to a development involves the joint efforts of SPSL, SPPG, and the customer and his agents, such as the LEW. While SPSL and SPPG will make every effort to engineer and implement the connection scheme, it is at the same time essential for the new customers and their agents to play their part such as the early submission of applications and plans, the acceptance of terms and conditions of connection including making the necessary payments and the compliance of the necessary SPPA or Transmission Code requirements. It is the responsibility of the customers to manage and direct their agents to ensure that their agents comply with the necessary SPPA or Transmission Code requirements. 4.17.2 As a guide for the customer and his agents, the normal lead-times for the various events are listed on the following page. Depending on the progress and completion time of precedent events, the actual completion dates of events leading to the energisation of the service connection may need to be reviewed and adjusted. 22 4.18 Normal Lead Time for Energisation of Service Connection Up to 22kV Submission of application to SPSL Installation with existing Service Connection Not Exceeding 45kVA or Domestic Premises Pre-inspected Installation or Reconnection Inspection Required Non-domestic Installation with Existing Service Connection Exceeding 45kVA New Connection from SPPA's Low Tension Mains New Connection from New Substation NA 14 days * 4 weeks 3 months 6 months Submission of substation plans to SPPG NA 5½ months Acceptance of Agreement § 4 days 14 days 14 days 7 weeks ** 11 weeks * Handover of substation and lead-in pipes to SPPG + Opening of account with SPSL Arrangements to inspect customer's installation (not exceeding 45kVA) by SPSL Application to EMA for licence to use or operate an electrical installation Request for energisation of service connection NA 10 weeks * 4 days 14 days 14 days 14 days 11 weeks NA 10 days NA NA 3 days 3 days 3 days NA 14 days 14 days 14 days * These are critical events. Failure to adhere to the schedule may result in delay in the turn-on of supply. § Implementation of connection work shall only be effected upon the payment of service connection charge and execution of the Connection Agreement by the customer. ** Energisation of service connection will normally take place within 4 to 6 weeks from the date customer's premises is ready to receive the service cable. This lead-time may vary from case to case, depending on the customer’s schedule, road opening approval from relevant authorities, amount of network reinforcement required and length of cable to be installed to effect the connection. + Energisation of service connection will normally take place within 10 weeks of handing over of substation and lead-in pipes. This lead-time generally applies to applied load of up to 2MVA and may vary from case to case, depending on the customer’s schedule, road opening approval from relevant authorities, amount of network reinforcement required and length of cable to be installed to effect the connection. 23 4.19 Fast Track Connection Scheme 4.19.1 To promote investment and entrepreneurship, industrial development applying Low Tension supply may be considered for fast track connection scheme. Eligible applicant should meet the following criteria: (a) Load application of 76 to 140 kVA; and (b) Point of supply connection not exceeding 150m away from existing network source. Application to EMA for licence to use or operate an electrical installation can be done concurrently with the submission of application to SPSL. Applications under such fast track connection scheme will receive their supply in 19 days from date of submission of application to SPSL (5 days for application process and 14 days for project implementation after site is taken over by SPPG). 4.19.2 As a guide for the customer and his agents, the normal lead-times for the various events are listed below. Depending on the progress and completion time of precedent events, the actual completion dates of events leading to the energisation of the service connection may need to be reviewed and adjusted. No. Procedures Time to complete 1 The customer has to engage and appoint a LEW to submit an application to SPSL to connect to the grid system, along with 2 copies of the site plan. The LEW could submit the Certificate of Compliance to SPSL in this procedure. 5 days A quotation for the connection will be offered for the customer to follow up if the submitted site plan by the LEW is in order. LEW will arrange to make payment and open an account. 2 SPPG will carry out the project implementation after the payment is made and customer site is readied to receive connection. An arrangement will be made with the LEW within the 14 days on the supply turn-on. 14 days 24 4.20 Notes to be Read in Conjunction with Application Procedure 4.20.1 Licensed Electrical Worker There are three classes of LEW, namely Licensed Electrician, Licensed Electrical Technician and Licensed Electrical Engineer. Licensed electrical workers of various classes are licensed to design, install, repair, maintain, operate, inspect and test an electrical or supply installation in accordance with the condition stated below: Electrical Workers Approved Load of Installation Voltage Electrician Not exceeding 45kVA Not exceeding 1,000V Electrical Technician Electrical Engineer Design: Not exceeding 150kVA Install: Not exceeding 500kVA No limit Not exceeding 1,000V Subject to licence conditions 4.20.2 The customer should appoint an LEW appropriate to the capacity and voltage of the proposed installation, and inform SPSL immediately of any change of LEW during the course of the project by submitting the notice of change of LEW in Appendix 45 or in such other form as SPSL may in its sole and absolute discretion accept. 4.21 Opening an Account 4.21.1 Before supply to an installation can be turned on, the customer must open an account with SPSL. An application to open an account for electricity supply can be made personally online through www.spgroup.com.sg or via the SP Utilities Mobile App. 4.21.2 Application in person can be made at the e-Kiosk located at SPSL's Flagship Customer Services Centre, 490 Lorong 6 Toa Payoh #09-11, HDB Hub Biz Three Lift Lobby 1, Singapore 310490 4.21.3 The following documents must be attached at the time of application: (a) Application under personal name: Copy of Identity Card/Passport of applicant** (b) Application under company name: Latest ACRA detailed Business Profile or Bizfile*** (c) Letter of Authorisation (only applicable for application under company name) Notes: To be authorised by Director listed in the recent ACRA detailed Business Profile/Bizfile on the letterhead issued by company, indicating the company's representative's name and identification number i.e NRIC or FIN. (d) Documentary proof of occupancy of premises (e.g Tenancy Agreement or property tax) (e) Copy of completed and signed Acknowledgement of Electrical Installation License Requirement Form EIL Form, if the electricity load is above 45 kVA. For more information on the license, please refer to www.ema.gov.sg (f) For temporary supply of electricity, the Quotation for Electricity Supply Connection and LEI issued by EMA are required. **not required if using Myinfo during application. ***not required if using Myinfo Business during application. 25 4.21.4 An initial deposit is payable on opening an account. Customers may look up online for information on the opening and closing of accounts. 4.21.5 For domestic premises, the deposits are as follows: Type of Premises Singaporean or Permanent Resident Foreigners GIRO Customers Non-GIRO Customers GIRO Customers Non-GIRO Customers HDB 1 or 2 Rooms $40 $60 $80 $120 HDB 3, 4 or 5 Rooms $70 $100 $140 $200 HDB Executive / HUDC Flat / Condominium / Private Apartment $100 $150 $200 $300 Terrace House / Semi-Detached House $150 $250 $300 $500 Bungalow / Penthouse / Townhouse $250 $400 $500 $800 4.21.6 The deposit for non-domestic premises varies according to the electricity load required, the estimated water consumption, the floor area and type of operations. For enquiry on the amount of deposit required, please refer online for information. 4.22 Handover of Completed Substation 4.22.1 The handover of substation to SPPG for installation of equipment is a key event, which determines the earliest date when supply can be made available. 4.22.2 One week prior to the intended handover of the substation, the LEW must submit a Request to Handover Substation form (Appendix 5) to Head of Section (Customer Projects - East / West / Distribution Network (DN) – I / II / III / IV / V / VI, SPPG, copy to Head of Section (Distribution Facilities Management (DFM). Before this is done, the LEW must ensure that the customer/developer has accepted the terms and conditions of connection, including the payment of necessary charges. 4.22.3 It must be emphasised that SPPG will take over the substation only when it is completed in accordance with plans and specifications approved by SPPG and the relevant authority. The LEW must ensure that the lead-in pipe connection point for SPPG is clear from underground services, road furniture and practical for excavation work to be carried out. It is the responsibility of the LEW to arrange mandrel test to demonstrate that the provision of lead-in pipe is clear from construction debris from SPPG connection point. LEW must also ensure that the lead-in pipes installed are watertight. It is also particularly important that the access to the substation must be clear and passable for transportation of heavy equipment. 4.22.4 For HDB projects, the Underground Piping System (UPS) shall be completed, customer switchroom (CSR) shall be locked and customer’s main switchboard (MSB) shall be mounted and tested before handover of completed substation. 4.22.5 Floor frames are needed for some types of switchgear. The LEW is to liaise with and notify the project engineer-in-charge to make arrangements for the floor frame to be installed, if it is necessary prior to the handover. 4.22.6 Requirements on handover of a completed distribution substation are given in Request to Handover Substation form (Appendix 5). 26 4.23 Installation of Current Transformer Operated Meters 4.23.1 On the appointed day of meter installation, the LEW or his representative must be present to provide a 230V 13A single-phase supply for testing of the meters. 4.24 Procedure for Application for Licence to Use or Operate an Electrical Installation 4.24.1 Under The Electricity Act, electrical installations in non-domestic premises, residential buildings and condominiums with an approved load greater than 45kVA are required to be licensed. In addition, certain premises classified as engaging in dangerous trades, are also required to be licensed even though they may have approved electrical loads not exceeding 45kVA. 4.24.2 Customer is required to appoint an appropriate class of licensed electrical worker to take charge of his electrical installation and submit application for Electrical Installation licence through his appointed licensed electrical worker via EMA website at www.ema.gov.sg. The validity of the licence is for a period of 12 calendar months. 4.25 Conditions for the Issue of the Licence 4.25.1 Conditions for the issue of the electrical installation licences are governed by EMA. 4.25.2 The minimum grade of LEW required to take charge of the electrical or supply installation is determined by the total approved load. The grades of Electrical Workers and their authorisation conferred under the respective EMA licences are shown in the table in section 4.18.1. 4.26 Procedure for De-Energisation / Disconnection of Service Cables 4.26.1 De-Energisation of Service Cable for Maintenance Purpose (a) The LEW who needs to de-energise an existing service cable for the purpose of maintenance or upgrading of the customer’s installation must submit the ADRE form at Resources (spgroup.com.sg) to SPPG 7 business days in advance. For Contestable Customers, an advance notice of 14 business days is required. (b) The SDRE form (Appendix 19) must be used to ensure that the service cable is safely isolated after de-energisation and fit to be energised before reenergisation. Both SPPG’s officer in-charge and the LEW must duly complete and sign Part I and Part II of the form after de-energisation and before reenergisation of the service cable respectively. For Contestable Customers, the LEW must duly complete and sign Part III of the SDRE form. 27 5 Customer’s Installation Requirements 5. Customer's Installation Requirements 5.1 Requirements for HT and LT Connection for 22kV and below 5.1.1 Short-Time Withstand Current Ratings of Switchgear For electrical installations taking electricity supply directly from SPPA’s network, the customer’s main supply incoming switchgear must comply with the following shorttime withstand current ratings. (a) For supply at high tension, Voltage Supply 22kV 6.6kV Short-time Withstand Current Ratings 25kA for 3 sec 20kA for 3 sec (b) For supply at low tension, Voltage Supply 230V (1 Phase) 400V (3 Phase) Rated Breaking Current / Short-time Withstand Current Ratings 6kA for supply capacity up to 15kVA 9kA for supply capacity more than 15kVA and up to 23kVA 9kA for supply capacity up to 75kVA 25kA, 3 sec for supply capacity more than 75kVA and up to 180kVA 36kA, 3 sec for supply capacity more than 180kVA and up to 1000kVA 43kA, 3 sec for supply capacity more than 1000kVA and up to 1500kVA Note: The 3-second duration is not applicable to switchgear incorporating direct acting tripping devices. 28 5.1.2 For electrical installations taking electricity supply from the landlord’s or management corporation’s electrical installations, advice on protection requirements must be sought from the LEW responsible for the respective licensed electrical installation. The LEW in-charge must ensure that the customer’s main supply incoming switchgear is capable of withstanding the prospective short-circuit current at the connection point. 5.1.3 Typical schemes and the protection requirements for customer’s HT and LT main incoming switchgear taking electricity supplies from SPPA’s system are shown in Appendix 17. It must comply in general to conditions as set out in the Transmission Code, Section 6.3 and Appendix F3. 5.1.4 Interim Electricity Supply via a Mobile Generator 5.1.4.1 On a goodwill basis, in order to assist Customers during localised electricity network supply interruption, subject to the Customer’s agreement and compliance with the terms and conditions of this paragraph 5.1.4, SPPA/SPPG, at its option, offers to use commercially reasonable efforts to provide a mobile generator(s) rated up to 1 MVA at 400V to supply electricity to Customer’s premises during the interim while the electricity network supply is being restored. A maximum of two mobile generators to a single site may be provided, subject to the availability of mobile generators and operational availability. “Localized electricity network supply interruption” means an outage due to a fault in the equipment and cables in the substation or Overground Box (OG Box) serving the Customer’s premises or installation. 5.1.4.2 With effect from 1 October 2020, it is mandatory for new Customers in the Central Business District (“CBD”) area receiving electricity supply from SPPG’s electric distribution substation via customer’s electrical in-take substation and operating consumer’s Low Tension (“LT”) electrical switch-room, or buildings housing critical infrastructures (physical and/or info-comm), to agree to and comply with this paragraph 5.1.4. The CBD boundary plan will be referenced to URA’s website, while the respective Government Agencies overseeing buildings housing critical infrastructures have been informed. 5.1.4.3 Other Customers may opt to and comply with this paragraph 5.1.4 by indicating that they agree to and will comply with paragraph 5.1.4 in their transmission services agreement with SPS or SPPA, as the case may be. 5.1.4.4 In order for Customers complying with this paragraph 5.1.4 to receive the interim electricity supply via a single mobile generator rated up to 1 MVA at 400V at the Consumer LT switchboard during a localised electricity network supply interruption, they shall ensure the following requirements are met: (a) Consumer LT switchroom shall be located at the same level as and adjacent to SPPA substation. (b) Customer must maintain an unimpeded access road that is 4 metres wide, with 4.5 metres of headroom clearance and 13m for turning radius, throughout the entire route within the Customer’s premises for the deployment of the mobile generator. (c) Access road must be able to withstand 35 tonnes, the weight of the mobile generator. 29 (d) Parking space of not less than 14 metres (L) by 3.7 metres (W) by 4.5 metres (H) within the customer’s premises shall be made available at or near Consumer LT switchroom (i.e. within 20 metres) for at least one number of the mobile generator in times of emergencies. A gradient greater than 1:15 is not acceptable. (e) Cable termination into the Consumer LT switchboard shall be via bottom entry only. (f) 3 sets of 4x300mm 2 1C CU cables with lug size 16.5mm shall terminate at the Consumer LT switchboard to allow connection of one number of mobile generator which is rated up to 1 MVA at 400V. Earthing terminal shall be provided for termination of earth conductor with lug size 12mm. (g) The fire suppression system in the Customer’s premise shall take into consideration of the exhaust emitted during the operation of the mobile generator. (h) Customer shall determine the critical loads to be supported via the mobile generator. (i) A remote connection point may be proposed to allow connection of one number of mobile generator which is rated up to 1 MVA at 400V, and complying with the above requirements. The connection point shall be provided with a circuit breaker of adequate breaking capacity, complete with overcurrent and earth fault protection. The busbar shall be extended and with height clearance of at least 0.9 metres for the termination of 3 sets of 4x300mm 2 1C CU cables with lug size 16.5mm via bottom entry. Earthing terminal shall be provided for termination of earth conductor with lug size 12mm. There must be electrical and mechanical interlock to prevent any possible parallel operation of the incoming services. 5.1.4.5 If the Customer does not comply with the requirements in paragraph 5.1.4.4, the Customer may not receive or may experience delay in receiving the interim electricity supply via the mobile generator. 5.1.4.6 Nothing in this paragraph or any other provision of this Handbook shall exempt Consumers from complying with any requirements under any applicable legislation, Act(s), Regulation(s), Code(s) or directions from a competent Government authority or body. 5.2 Requirements for 22kV and 6.6kV Customer Connection 5.2.1 The main protection for the 22kV customer connection must be pilot wire differential protection. The current transformers of ratio 500/5 must be of Class X (BS EN 61869-2) and the CT secondary star-point must be towards the protected line. The customer shall check that the 22kV main protection relay is compatible with SPPG’s end. The standard overcurrent/earth fault setting for the incomer is shown in Appendix 17. For customer installation connected with DG, the pilot wire protection relay used shall be Solkor-Rf relay. 30 5.2.2 To effect fast fault clearance on connection circuit, the 22kV cable terminations and metering CTs/VTs installed at the incomers must be included in the 'Protected Zone' of the cable's Unit Protection, as shown in Appendix 17. 5.2.3 The LEW of the customer installation is responsible for proper specification, setting / commissioning of the protection system at the customer incomers. 5.2.4 The LEW shall ensure that there should not be any earthing facilities in customer switchboard at the main incoming panel. 5.2.5 Customer’s transformer configuration shall not contribute zero sequence current to SPPG’s end during fault. 5.3 Requirements for LT Supply Connection 5.3.1 The customer’s incoming circuit breaker shall be set according to the approved load. For approved load exceeding 300A, external overcurrent relays of IDMTL or DTL characteristics and earth fault protection (DTL) must be provided at the incoming switchgear. The current transformer must be of Class 5P10, 15VA or better (BS EN 61869- 2). Details of the CT requirement and relay setting are shown in Appendix 17. 5.3.2 Every low tension electrical installation of supply capacity exceeding 75kVA must be provided with short-circuit protection in the form of direct acting trip element at the incoming switchgear as follows: Approved Load Above 1500A Direct Acting Trip Setting Up to 4500A 400A< Approved Load < 1500A Up to 3200A 260A < Approved Load < 400A 200A < Approved Load < 260A 200A and below Up to 2400A Up to 2000A Up to 1200A Alternatively, a backup HRC fuse may be used in place of direct acting trip. 5.4 Requirements for EHT Connection for 66kV and 230kV 5.4.1 Short-Time Withstand Current Ratings of Switchgear For electrical installations taking electricity supply directly from SPPA’s network, the customer’s main supply incoming switchgear must comply with the following shorttime withstand current ratings: Voltage Supply 230kV 66kV Short-time Withstand Current Ratings 63kA for 1 sec 40kA/ 50kA* for 3 secs 31 * Rating to be used is dependent on the substation which the customer is proposed to be connected to. 5.5 Requirements for 66kV and 230kV Customer Connection 5.5.1 Engineering details and protection settings will be discussed with the customer during the consultation period. 5.5.2 The protection system for the connections has to comply in general to the conditions as set out in the Transmission Code. It must comply in general to conditions as set out in the Transmission Code, Section 6.3 and Appendix F3. 5.5.3 The relays used for a unit protection scheme, and the characteristics of its associated current transformers should be matched. For reason of obsolescence or availability, the type of protection relays, signalling equipment and the protection schemes is subject to review and confirmation during the consultation period. 5.5.4 Wherever applicable, protection signalling equipment is to be provided for teleprotection function and for end-to-end transfer of intertrip and interlock (control/ safety) signals. 5.5.5 A selective switch to block/isolate the trip signals of the relay is to be provided at each unit protection system of the incomer. This is to facilitate check/investigation of an alarm on the unit protection system on the energised circuit. 5.5.6 Generally, the star-point of the current transformer secondary circuit must be towards the protected object / zone. For feeder's unit protection, it is preferred to have the same CT ratio as SPPG's end. 5.5.7 Generally, the location of the current transformers for the protection system of the connection circuit and that of the customer's installation must be overlapped to eliminate protection blind zone. 5.5.8 Current transformers supplied for unit protection must be rated in accordance with IEC 61869-1, IEC 61869-2 and IEC 61869-6 or equivalent. They must be adequately dimensioned and of an accuracy class meeting the specified relay’s requirement. To ensure stability, the characteristic of the current transformers for the unit protection installed at both ends of the connected circuit must be closely matched with each other. 5.5.9 Customer shall engage local professional engineer who has experience on 230/66kV protection system to carry out relay setting, testing and commissioning, to ensure proper commissioning of the protection system. 32 5.5.10 Generally, the proposed setting for the backup protection for the typical 66KV customer incomer is as shown below: Protection Relay CT Ratio General Setting Setting Over Current Protection (IDMTL) Feeder Circuit Customer 75MVA Transformer (1000/5) (800/5) (1000/5) (800/5) 150% 0.15 200% 0.15 100% 0.20 Instantaneous Hi-Set 125% 0.16 Instantaneous Hi-Set Notes: Earth Fault Protection (IDMTL) Feeder Circuit Customer 75MVA Transformer (1000/5) (800/5) 10% 0.10 15% 0.10 Instantaneous Balanced Earth Fault • The above recommended setting for the backup protection is applicable to the standard protection scheme proposed for a feeder or feeder-transformer type customer connection and is applicable to radial feed connection only. (Appendix 17) • Customer incomer shall install 'instantaneous' Overcurrent Hi-Set and instantaneous Balanced Earth Fault protections to protect its own transformer. • The overcurrent and earth fault setting are subjected to periodic review by SPPG. 5.6 Information on SPPA Network Earthing System for 230kV, 66kV and 22kV 5.6.1 Where customer is connected directly to SPPA’s network, customer shall note the following earthing system at each voltage level. (a) 230kV - Solidly earthed system (b) 66kV - Resistive earthed system with neutral ground resistor (NGR) of 19.5 ohms (c) 22kV - Resistive earthed system with neutral ground resistor (NGR) of 6.5 ohms 5.6.2 Customer shall ensure that all equipment including CTs, VTs, and protection systems connected to SPPA network meet the technical specification required for the respective earthing system in accordance with the relevant standards. 33 6. Metering Requirements 6 Metering Requirements 6.1 General 6.1.1 All metering requirements must comply with EMA’s Metering Code. SPPG will determine the location where the supply line terminates in the premises, based on ease of accessibility to SPSL and SPPG personnel. 6.1.2 “Electricity Meter” means the electrical device capable of measuring the flow electrical power. 6.1.3 “Meter Installation” means the associated ancillaries (excluding the meter) that includes, but not limited to, the meter board, self-contained metering transformers, wiring, test links, incoming miniature circuit breakers, outgoing isolator etc. 6.1.4 The electricity meters are owned, supplied and maintained by SPPG acting as an agent of SPPA. 6.1.5 The meter installation (excluding the electricity meter) ie. the meter boards, incoming miniature circuit breakers (MCBs), outgoing isolators, electrical wiring and all other electrical or mechanical ancillaries that makes up the meter installation are owned, supplied and maintained by the “Owner” - developer of the estate / estate manager / MCST / HDB upgrading contractors / Town Councils or customer etc. 6.1.6 The Incoming and Outgoing MCBs of the meter are to be clearly labelled accordingly with “Incoming” and “Outgoing” for clear indication and operation. 6.1.7 The “Owner” and its appointed representative for the entire electrical licenced installation which the meter installation is part of, is solely responsible for the maintenance eg. checking and tightening of connections of the meter installation and its ancillaries including that at the meter terminals where the electrical wires belonging to the “Owner” terminate as part of its licensee obligation. “Owners” are allowed to break the SPPA seals and carry out the works by informing Electrical Meters Section so that it can be re-sealed post maintenance. 6.1.8 For “Owners” who install meter box over the meter installation, it is mandatory to submit to Electrical Meters Section the product datasheet for the meter box indicating the IP ratings that ensure the UV-resistance and weather-hardiness of the meter box to withstand the local weather conditions in Singapore. For meter box found at legacy HDB blocks, “Owners” are to provide the meter box datasheet from HDB as per their design specifications. This would apply for upgrading or re-wiring that will affect position / wiring of the electricity meter. It is not required to provide a meter box if the meter installation is located within an enclosure (meter compartments / risers / ducts etc) that shields the meter installation from the elements. “Owners” should take the chance to remove the meter box from such locations wherever practically reasonable if such had meter box installed historically. 34 6.1.9 Electrical Meters Section reserves the rights to decline any express service meter installation request submitted less than 4 business days before the scheduled date of electrical turn-on, due to the lead time required for schedule and resource availability allocation. Applicants are to note that express service charges do not supersede the 4 business days lead time due to