Letter of Appointment – Electrical Installation Please fill up this form to appoint a Licensed Electrical Worker (LEW) to take charge of your electrical installation. You need your appointed LEW’s card license to fill up this form. To: Name of Licensed Electrical Worker (LEW): ___________________________________________ License No. of LEW: _____________________________ Signature of LEW: _____________________________ APPOINTMENT TO TAKE CHARGE OF THE ELECTRICAL INSTALLATION AT __________________________________________________________________________ __________________________________________________________________________ (Installation Address) FOR ____________________________________________________________________ (Name of Company) I would like to appoint you as the licensed electrical worker to take charge of the above-mentioned electrical installation. __________________________________________ Full Name & Designation of Applicant’s Authorised Person _____________________ Signature / Date Correspondence Address: __________________________________________ __________________________________________ Postal Code: ________________________________ Email Address: _______________________________ (Company Stamp) UEN: ___________________ Business Tel. No.: ___________________ ext.: ______ Fax No.: ___________________________________ This form is intended for SP Services Ltd only.

Consumption_Elect Average consumption of Electricity (kWh) Premises Types 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 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 HDB 1-Room 126 126 132 150 152 149 140 151 148 139 142 128 127 121 119 128 136 150 143 150 136 136 144 127 HDB 2-Room 164 167 173 199 199 195 183 198 192 183 186 166 168 161 156 169 181 195 190 195 177 177 188 164 HDB 3-Room 236 241 250 292 285 277 264 283 277 266 266 243 238 231 231 250 265 284 273 280 257 259 271 242 HDB 4-Room 321 330 342 398 396 383 360 385 381 363 365 338 327 320 309 341 363 390 381 388 358 355 377 334 HDB 5-Room 367 381 399 463 466 448 416 447 446 427 429 397 379 374 359 399 425 457 450 459 423 417 444 392 HDB Executive 456 474 489 575 568 544 515 546 548 520 523 481 462 458 445 495 522 562 554 562 520 513 546 478 Apartment 430 435 486 578 573 543 500 513 539 523 519 486 446 419 417 476 516 548 536 541 513 501 538 500 Terrace 740 794 821 957 900 872 838 847 885 851 851 785 747 744 714 775 823 881 848 866 817 818 836 785 Semi-Detached 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 1,031 1,080 1,173 1,123 1,121 1,072 1,056 1,107 1,016 Bungalow 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 2,016 2,154 2,244 2,175 2,168 2,190 2,074 2,202 2,040

Media Release Electricity Tariff Revision For the Period 1 Jan to 31 Mar 2021 Singapore, 30 December 2020 – For the period from 1 January to 31 March 2021, electricity tariff (before 7% GST) will decrease by an average of 3.2% or 0.67 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 7% GST) will decrease from 21.43 to 20.76 cents per kWh for 1 January to 31 March 2021. The average monthly electricity bill for families living in four-room HDB flats will decrease by $2.39 (before 7% GST) (Appendix 3: Average monthly electricity bills of domestic consumers). *before 7% GST SP Group reviews the electricity tariffs quarterly based on guidelines set by the Energy Market Authority (EMA), the electricity industry regulator. The tariffs shown in Appendix 2 have been approved by the EMA. 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 fee is reviewed annually. This is to recover the cost of transporting electricity through the power grid. Market Support Services Fee (paid to SP Group): This fee is reviewed annually. This is to recover the costs of billing and meter reading, data management, retail market systems as well as for 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.   Appendix 2 Appendix 3

Media Coverage Catch the latest news on SP All Years 06 Jun 2025 SP Group to donate up to S$1 million Source: Tamil Murasu © SPH Media Limited. Permission required for reproduction. 04 Jun 2025 SP Group launches initiatives to help seniors, young at inaugural Community Festival Source: The Business Times © SPH Media Limited. Permission required for reproduction. 04 Jun 2025 New initiative for SP Group 30th anniversary - Journeys from the Heart takes 600 on excursions Source: Lianhe Zaobao © SPH Media Limited. Permission required for reproduction. 04 Jun 2025 SP Group launches community initiative, taking beneficiaries on tour of attractions Source: Shin Min Daily News © SPH Media Limited. Permission required for reproduction. 02 Jun 2025 Postponed his studies to support his family, he is now a Principal Engineer Source: Berita Harian © SPH Media Limited. Permission required for reproduction. 27 May 2025 SP Group renews donation for ITE students to advance studies against odds Source: Lianhe Zaobao © SPH Media Limited. Permission required for reproduction. 27 May 2025 SP Group nurtures the next generation in engineering Source: Tamil Murasu © SPH Media Limited. Permission required for reproduction. 26 Mar 2025 SP Group donates S$700,000 to St Andrew's Autism Centre Source: The Business Times © SPH Media Limited. Permission required for reproduction. 25 Mar 2025 SP Group donates $700,000 to uplift employability of youths with autism Source: Lianhe Zaobao © SPH Media Limited. Permission required for reproduction. 25 Mar 2025 SP Group donates $700,000 to support youths with autism and their caregivers Source: Shin Min Daily News © SPH Media Limited. Permission required for reproduction. 1 ... 4 5 6 ... 49

News Release SP Partners EDF on Subsea Cables to Facilitate Green Energy Import from Indonesia Singapore, 12 October 2021 – SP Group (SP) signed a Memorandum of Understanding (MOU) yesterday with EDF Group (EDF) to jointly develop a subsea transmission cable to support renewable energy import from Indonesia. The infrastructure aims to facilitate future electricity import from Indonesia, starting from a proposed 1,000MWp solar photovoltaic plant to be developed by a consortium of partners led by EDF Renewables, a subsidiary of EDF. As part of the MOU, SP and EDF will embark on commercial, regulatory and technical feasibility studies for the subsea cable, and explore opportunities to widen the interconnection to other neighbouring clean energy generation sources in Indonesia to improve economies of scale. When completed, the subsea transmission cable will be a key enabler for regional power system integration, ensuring scalable grid connection capacity from Indonesia. Mr Jean-Philippe Buisson, Senior Vice President, Asia, EDF International, said, “This partnership with SP Group is in line with EDF Group’s ambitions of promoting cross border interconnection globally which supports the flow of renewable energy. EDF looks forward to mobilising its comprehensive expertise, both technically and commercially, to support the implementation of this common subsea transmission cable between Singapore and Indonesia with our best practices and past experiences. We are proud to contribute to this development, as the decarbonization of energy is at the heart of our business ambition.” SP’s Group CEO, Mr Stanley Huang, said, “We are honoured to partner with EDF to support the import of green energy from Indonesia into Singapore. The subsea transmission cable will be an important part of the regional grid interconnection and allow us to better plan for future network requirements to maintain our reliability standard. We look forward to working closely with EDF on the feasibility studies.” Mr. Stanley Huang (L), Group CEO, SP Group, with Mr. Jean-Philippe Buisson, Senior Vice President, Asia, EDF International, at the MOU signing ceremony on 11 October 2021. (From left) Mr Brandon Chia, Managing Director, SEA & Australia, Sustainable Energy Solutions, SP Group; Mr Stanley Huang, Group CEO, SP Group; Mr. Jean-Philippe Buisson, Senior Vice President, Asia, EDF International; and Mr Cheang Jian Ming, Business Development Manager, EDF International -Ends- About SP Group SP Group is a leading utilities group in the Asia Pacific, empowering the future of energy with low-carbon, smart energy solutions for its customers. It owns and operates electricity and gas transmission and distribution businesses in Singapore and Australia, and sustainable energy solutions in Singapore and China. As Singapore’s national grid operator, about 1.6 million industrial, commercial and residential customers benefit from its world-class transmission, distribution and market support services. These networks are amongst the most reliable and cost-effective world- wide. Beyond traditional utilities services, SP Group provides a suite of sustainable and renewable energy solutions such as microgrids, cooling and heating systems for business districts and residential townships, solar energy solutions, electric vehicle fast charging and digital energy solutions for customers in Singapore and the region. For more information, please visit spgroup.com.sg or for follow us on Facebook at fb.com/SPGroupSG, on LinkedIn at spgrp.sg/linkedin and on Twitter @SPGroupSG. About EDF As a major player in energy transition, the EDF Group is an integrated energy company active in all businesses: generation, transmission, distribution, energy trading, energy sales and energy services. EDF Group is a world leader in low-carbon energy, having developed a diverse production mix based mainly on nuclear and renewable energy (including hydropower). It is also investing in new technologies to support energy transition. EDF’s raison d'être is to build a net zero-carbon energy future with electricity and innovative solutions and services, to help save the planet and drive well-being and economic development. The Group is involved in supplying energy and services to approximately 37.9 million customers (1), of whom 28.7 million in France (2). It generated consolidated sales of €69.0 billion in 2020. EDF is listed on the Paris Stock Exchange. (1) Since 2018, customers are counted per delivery site. A customer can have two delivery points: one for electricity and another one for gas. (2) Including ÉS (Électricité de Strasbourg).  

SP Energy HubAnnual ReportReliabilitySustainabilityInnovation SP Group awarded BCA grant to power next-gen green buildings INNOVATION SP Group (SP) was awarded a grant by the Building and Construction Authority (BCA) to develop and implement technologies and digital solutions to push the limits of buildings’ energy efficiency standards. The grant was awarded under the Green Buildings Innovation Cluster (GBIC) Programme -  one of the enablers of the Singapore Green Building Masterplan, as part of the Singapore Green Plan 2030. A screen grab of the dynamic online digital portal Under GBIC funding, SP Group will pilot a dynamic online digital portal and an artificial intelligence (A.I.) powered mobile application tool to provide real-time electricity and water usage insights to both occupants and building facilities managers. Building occupants will also be equipped with an “At Work” function of the SP Utilities App to encourage them to achieve a more sustainable lifestyle. Sustainability App function - How it works The National University of Singapore’s (NUS) University Town (UTown) will be the first development to have these digital solutions implemented under this programme. The solutions will be piloted at two buildings at UTown – the Education Resource Centre and the Stephen Riady Centre – and will be installed in the first half of 2022. Read more in the media release. - 16 June 2021 TAGS INNOVATION YOU MIGHT BE INTERESTED TO READ SP partners Pyxis to launch direct-current fast charging point for electric harbour crafts Using GET™ to help Mercatus digitally manage their tenant utilities SP Group is partnering Mercatus Co-operative Limited to deploy SP Digital’s Green Energy Tech (GET™) solutions to Mercatus’ properties. Developing the digital core of sustainable energy solutions From coding to designing systems, Ibrahim develops and manages all the central platforms and systems that power the SP Utilities app, commercial solutions, and internal projects for SP.

Media Release Smart Building Solution by SP Group and 75F Helps Buildings Achieve More Than 30% Energy Savings Singapore, 5 December 2019 – SP Group (SP), a leading energy utilities group and 75F, a building intelligence solutions provider, are offering a micro-climate control solution that can save more than 30 per cent in energy consumption while improving occupant comfort. The solution uses applied Artificial Intelligence (A.I.) and Internet of Things (IoT) to reduce energy consumption in a building. It takes into consideration factors like occupancy and weather and optimises air-flow to evenly cool areas. SP partnered with 75F to customise and test the performance and viability of the solution for Singapore’s tropical environment. The solution was trialled for a year at Singapore Institute of Technology’s (SIT) campus at Dover, and the Mercatus Co-operative Limited’s corporate office at One Marina Boulevard in Raffles Place. Both locations achieved more than 30 per cent in energy savings, while improving comfort for occupants by ensuring that the indoor temperature, and air quality were optimal. With the validated outcomes, SP and 75F will offer the solution to customers in Singapore, China, Vietnam, Indonesia and Australia. Air-conditioning contributes 60 per cent of a building’s electricity consumption. With buildings consuming a third of Singapore’s total electricity consumption1 , this new solution will help Singapore reduce electricity consumption and support the goal of cutting national emissions intensity by 36 per cent below 2005 levels by 2030. Mr Brandon Chia, Head, Centre of Excellence, SP Group said: “SP Group has partnered with 75F on this micro-climate control solution that leverages A.I. and IoT. It enables customers to enjoy cooler comfort in buildings while lowering their carbon footprint. We look forward to developing more next-generation technologies to help customers in Singapore and the region save energy and cost.” The micro-climate control solution is a self-learning, intuitive building intelligence system that optimises and regulates air-conditioning in buildings to improve operational efficiency and occupant experience. The system’s central control unit divides large open spaces into smaller zones that balances the temperature, air flow, carbon dioxide (CO2) within each zone. It also optimises the air-conditioning operation by using the least amount of energy to achieve the required comfort. Gaurav Burman, APAC President, 75F said: “Both 75F and SP are committed to saving energy and reducing the carbon footprint of commercial buildings. The Asia Pacific market, especially Singapore, China, Vietnam, Indonesia and Australia, represent a huge opportunity given their economic growth, rising energy costs and the growing focus to improve occupant experience and operational efficiency. This partnership combines 75F’s award-winning technology with SP’s capabilities and track record in the region, allowing both companies to accelerate our growth.” SP’s partnership with 75F first started as part of SP’s Energy Advanced Research and Development (SPEAR) programme, under the SP Centre of Excellence (SP CoE). SP CoE is an initiative supported by the Singapore Economic Development Board (EDB), and drives the research, development, and integration of cutting-edge solutions and next-generation technologies for Singapore’s energy infrastructure network. -Ends- Notes to Editor: 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 1.6 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. About SP Centre of Excellence The SP Centre of Excellence (CoE) is an initiative by SP Group (SP) to drive the innovation and commercialisation of next-generation energy network technologies for the greater reliability and efficiency of Singapore’s infrastructure. Supported by the Singapore Economic Development Board, the CoE aims to establish SP as a thought leader in the utility industry forefront and build future-ready energy networks and resource capabilities. This allows SP to stay ahead of global trends such as the drive for smarter and greener performance, and to sustainably meet evolving customer needs About 75F 75F is an award-winning, IoT and Machine Learning company taking a fresh approach to HVAC, lighting and controls in commercial buildings. Founded in 2012, 75F offers data-driven, proactive, predictive building intelligence and controls. 75F is backed by investment groups including billionaire-led Breakthrough Energy Ventures and Oil & Gas Climate Initiative. 75F has delivered hundreds of energy-efficient, comfortable and healthy spaces to enthusiastic customers who rave about the results. 75F launched its operations in India in August 2016 and has been growing steadily since with companies such as Firstsource Solutions, Flipkart, Bennett-Coleman Group, Mercedes Benz, Mapletree, HP, Shell, Smartworks and other leading brands in India, joining US customers such as HOM Furniture, Border Foods, Magnet 360, Rockler and Yoga Fit. 1 Source: The Building and Construction Authority (BCA) Super Low Energy Technology Roadmap Report

Appendix 1 CPMS Quarterly Assessment Q1 FY24/25 CPMS Quarter Assessment Q1 FY24/25 (01 Apr 2024 – 30 Jun 2024) Results Q1 FY2425 CPMS Quarter Assessment 20 15 19 12 10 5 2 3 2 3 0 Grade A (≥90) Grade B (80 - 89) Grade C (70 - 79) Grade D (60 - 69) Grade E (50-59) Grade F (0-49) We have completed our first quarter for CPMS assessment based on the contracts that are CPMS applicable rendered to your respective company based on the following four (4) areas: (a) Safety; (b) Quality of Work; (c) Project & Risk Management; and (d) Value Added Services The contractors involved in CPMS with their respective grades are shown as below table. SP Group 2 Kallang Sector, Singapore 349277, www.spgroup.com.sg Appendix 1 CPMS Quarter Assessment Q1 FY24/25 (01 Apr 2024 – 30 Jun 2024) Results The list of the contractors below is arranged in alphabetical order and not in any particular ranking sequence. Contractor Grade CHINA INTERNATIONAL WATER & ELECTRIC CORPORATION (S) PTE LTD HIAP ENGINEERING & CONSTRUCTION PTE LTD A CHIN KUAN ENGINEERING & CONTRACTORS PTE LTD CHUAN LIM CONSTRUCTION PTE LTD HSC PIPELINE ENGINEERING PTE LTD K.H. LEE ENGINEERING & CONSTRUCTION PTE LTD LEY CHOON CONSTRUCTIONS AND ENGINEERING PTE LTD LIH MING CONSTRUCTION PTE LTD LONG ZHOU ENGINEERING PTE LTD LS CABLE & SYSTEM LTD SINGAPORE BRANCH MACBUILD CONSTRUCTION PTE LTD PACIFIC CENTRAL TEKNIK PTE LTD RMA FIVENTURES ASIA-PACIFIC PTE LTD SAM LAIN EQUIPMENT SERVICES PTE LTD SING TEC DEVELOPMENT PTE LTD TAIHAN CABLE & SOLUTION CO.,LTD. TEACLY (S) PTE LTD UK ENGINEERING & CONSTRUCTION PTE LTD UNIGLORY CONSTRUCTION PTE LTD VISTEK PTE LTD YEW ANN CONSTRUCTION PTE LTD B SP Group 2 Kallang Sector, Singapore 349277, www.spgroup.com.sg Appendix 1 Contractor AVENUE ENGINEERING PTE LTD CITI CONSTRUCTION & ENGINEERING PTE LTD DOSK CONTRACT SERVICES PTE LTD HANAKO CONSTRUCTION PTE LTD INTEGRATE ENGINEERS PTE LTD JIN CHOON CIVIL ENGINEERING PTE LTD LIANG & HOW CONTRACTOR PTE LTD MO GUAN CONSTRUCTION ENGINEERING PTE LTD Mr Berg Pte Ltd POWERCOM ENGINEERING WORKS PTE LTD SER CHUAN CONSTRUCTION PTE LTD SIGMA CABLE COMPANY (PRIVATE) LIMITED Grade C ILJIN ELECTRIC CO LTD SINGAPORE BRANCH J&CO ENGINEERING PTE LTD SING AND SAN CONSTRUCTION PTE LTD D ASPHALT SPECIALIST SERVICES PTE LTD SL LINK ENGINEERING PTE LTD E HI POWER PTE LTD HYUNDAI ENGINEERING & CONSTRUCTION CO.,LTD YUAN JI ENTERPRISES PTE LTD F SP Group 2 Kallang Sector, Singapore 349277, www.spgroup.com.sg

Solar PV – User Guide for Non-Residential Consumers Table of Contents 1. Introduction ................................................................................................................................... 2 2. Electricity Generation Licence ..................................................................................................... 3 3. Electrical Installation ...................................................................................................................... 3 4. Connection Requirements ........................................................................................................... 5 5. Market Settlement ....................................................................................................................... 10 6. Intermittency Pricing Mechanism .............................................................................................. 15 7. Monitoring Requirements .......................................................................................................... 16 8. AMI Meter Charges ..................................................................................................................... 17 9. Decommissioning Requirements .............................................................................................. 18 10. PV Directory ................................................................................................................................. 20 December 2022 1 Solar PV – User Guide for Non-Residential Consumers 1. Introduction This section provides information applicable to non-residential consumers with embedded solar PV systems to reduce their electricity consumption. A brief summary of the relevant processes can be found in the flow chart on the website. Please refer to the following sections for more information. For more information on the policy and regulatory framework for solar, please refer to EMA’s website. December 2022 2 Solar PV – User Guide for Non-Residential Consumers 2. Electricity Generation Licence The electricity licensing requirements for solar PV systems will be based on the aggregate of the Alternating Current (AC) inverter capacities (“installed generation capacity”) at the point of connection 1 to the grid. Any person who engages in the generation of electricity with a solar PV system with installed generation capacity of 1 MWac or more but less than 10 MWac is required to apply to EMA for a Wholesaler (Generation) Licence. For installed generation capacity of 10 MWac or more, he has to apply for a Generation Licence. All relevant licences should be obtained before any turn-on of solar PV installations. A summary of the licensing requirements is shown in the table below. Table 1: Licensing Requirements for Solar PV Systems Installed Capacity of Solar PV System Connected to the Power Grid? Type of Licence* Below 1 MWac Yes No 1 MWac or more but less Yes than 10 MWac No Yes 10 MWac or more No * An Electrical Installation Licence may still be required. Exempted Wholesaler (Generation) Licence Exempted Generation Licence Application for the wholesaler or generation licence can be made on EMA’s website: http://www.ema.gov.sg/Licensees_Electricity_Licences.aspx. 3. Electrical Installation An electrical installation refers to any electrical wiring, fitting or apparatus used for the conveyance and control of electricity in any premises. A solar PV system installed within such premises forms part of the consumer’s electrical installation and should comply with the requirements stipulated in the Electricity Act (Cap. 89A), the Electricity (Electrical Installations) Regulations and the Singapore Standard CP5 Code of Practice for Electrical Installations. 1 The point of connection refers to the point at which the solar PV system is connected directly or indirectly to SP PowerAsset’s substation. December 2022 3 Solar PV – User Guide for Non-Residential Consumers All electrical work for an electrical installation, including a solar PV system, must be undertaken or carried out by a Licensed Electrical Worker (LEW). Such electrical work includes new wiring, rewiring and extensions which have to be tested before the supply is turned on. When consumer needs any electrical work to be done at his premises, he is advised to check that the person whom he intends to engage to undertake or perform the electrical work has a valid electrical worker licence issued by the Authority. It is an offence for a person: i. To carry out or caused to be carried out any electrical work unless he holds a valid electrical worker licence; or ii. To engage knowingly any person who is not a licensed electrical worker to carry out any electrical work. For more details, you may wish to refer to ELISE website for the list of LEW. Electrical Installation Licence LEW will need to apply for an Electrical Installation Licence for the installation if the usage or operation of an electrical installation exceeds 45 kVA of approved load for non-domestic purposes and for multi-metered premises. Electrical installations are licensed to ensure that owners/users of certain electrical installations engage a LEW to take charge of and maintain their electrical installations for reason of safety. A grid-connected solar PV system forms part of the consumer’s electrical installation. A new solar PV system will be covered under the existing electrical installation licence upon connection to the installation by the LEW taking charge of the electrical installation. Safety requirements Currently under the electrical installation licensing scheme, the consumer’s appointed LEW is required to carry out safety inspection and certification of the electrical installation, including the solar PV system, according to the conditions specified under the electrical installation licence. Solar PV systems require regular inspection and maintenance to ensure that the system remains efficient and safe for operation. In most cases, equipment manufacturers will provide maintenance guidelines for their specific components. It is important to ensure that the maintenance requirement is carried out according to the recommendation and certified by the LEW. December 2022 4 Solar PV – User Guide for Non-Residential Consumers 4. Connection Requirements If you intend to connect and operate your solar PV system in parallel to the power grid, your appointed LEW will have to complete the online Application Form and submit the following documents to SPS via Singapore Power (SP) eBusiness Portal: • Document Checklist and Declaration of Compliance to SP PowerGrid’s (SPPG) Technical Requirements • Application for Net Export Rebate Form • Letter of Consent • PQ Compliance Report • Inverter(s) Specifications • Solar Panel(s) Specifications • Inverter(s) Type Test Reports (Harmonics, Flicker, DC Injection) • Single Line Diagram (from PV system to Point of Common Coupling (PCC) • PSO Data Form (only applicable for solar PV system 1 MWac and above) • Certificate of Compliance (only applicable for licensed installation who are eligible to appoint their LEW to commission the solar PV system) • Commissioning Declaration (only applicable for licensed installation who are eligible to appoint their LEW to commission the solar PV system) Thereafter, your appointed LEW will have to consult SPPG on the connection scheme and technical requirements. For High Tension and above (6.6kV and above) consumers with embedded IGS / generation, you will need to choose one of the 3 backup schemes (full or partial) required: (1) Summation Scheme; (2) Capped Capacity Scheme; or (3) Extended Capped Capacity Scheme You will need to sign a Supplemental Agreement with the Transmission Licensee to reflect your choice of backup scheme for the service connection. For more information on each scheme, please refer to SPPG’s guide on “How to Apply for Electricity Connection” available on the SP Group website (www.spgroup.com.sg). December 2022 5 Solar PV – User Guide for Non-Residential Consumers The simplified connection and turn-on application process for solar PV systems less than 1 MWac are illustrated in Figure 2 and 3. Figure 2: Application Process for Solar PV System Connection (less than 1 MWac) Start Appointed LEW to submit relevant documents to SPS SPS to inform LEW (via Letter) to proceed with Turn-On Application * Concurrently, HT & above consumers with embedded IGS / generation to sign Supplemental Agreement for backup scheme SPPG to evaluate technical specifications of the solar PV system pertaining to PQ requirements Compliance with technical requirements? No LEW to re-submit technical requirements after clarification Yes LEW to proceed with Turn-On Application (refer to Fig 3 for Turn-On application process) SPPG sends technical assessment completion letter to LEW End End December 2022 6 Solar PV – User Guide for Non-Residential Consumers Figure 3: Turn-On Application Process for Solar PV System (less than 1 MWac) Start LEW to submit Turn-On application to SPS LEW to ensure that the relevant meters are installed Does the premise have an Electrical Installation Licence? Yes No LEW to commission the solar PV system SPS to witness the commissioning of solar PV system on the scheduled Turn-On date LEW to submit Commissioning Declaration of solar PV system within 7 days of solar PV system commissioning to SPPG End End December 2022 7 Solar PV – User Guide for Non-Residential Consumers The simplified connection and turn-on application process for solar PV systems 1 MWac and above are illustrated in Figure 4 and 5. Figure 4: Application Process for Solar PV System Connection (1 MWac and above) Start Appointed LEW to submit relevant documents to SPS HT & above consumers with embedded IGS / generation to sign Supplemental Agreement for backup scheme SPPG to evaluate technical specifications of the solar PV system pertaining to PQ requirements Compliance with technical requirements? Yes No LEW to re-submit technical requirements after clarification SPPG sends technical assessment completion letter to LEW LEW to proceed with Turn-On Application (refer to Fig 5 for Turn-On application process) End December 2022 8 Solar PV – User Guide for Non-Residential Consumers Figure 5: Turn-On Application Process for Solar PV System (1 MWac and above) Start LEW to submit Turn-On application to SPS LEW to ensure that the relevant meters are installed LEW to commission the solar PV system LEW to submit Commissioning Declaration of solar PV system within 7 days of solar PV system commissioning to SPPG End December 2022 9 Solar PV – User Guide for Non-Residential Consumers 5. Market Settlement The process required and the amount of payment received for selling excess solar electricity back to the grid depends on the size of the solar PV system and contestability status of the consumer. An overview of the available payment schemes can be found on EMA’s website. Consumers with embedded solar PV systems will be given ‘net settlement’ of the energy component. This means that consumers are either charged for their net consumption or paid for their net generation within each trading period. 5.1 Solar PV system below 1 MWac Non-contestable consumers (NCCs) For Low Tension (LT) NCCs with less than 1 MWac embedded solar PV systems, the solar energy produced is first offset by their consumption of that premise. Should there be excess solar energy to be exported back to the grid, they will receive payment (the prevailing low-tension electricity tariff minus grid charge) from SP Services (SPS) by way of credit adjustment to the monthly electricity bill. The quarterly revised low-tension electricity tariffs can be found on SP Group’s website (www.spgroup.com.sg). Contestable consumers (CCs) For CCs who wish to be paid for the excess electricity sold to the grid, they can register with SPS under the Enhanced Central Intermediary Scheme (ECIS). Under this simplified arrangement, they will be paid the weighted average nodal price through SPS, for the selling of excess solar electricity back to grid. SPS will act as a central intermediary, by passing through the payment and relevant market charges to consumers. Such consumers can either choose (a) to install a meter to accurately measure the solar electricity generated, or (b) to estimate their solar generation. For option (a), consumers will need to install the relevant metering arrangement at each generation point. More details on the meters can be found in Section 8, AMI Meter Charges. For option (b), the solar generation will be estimated based on the Solar Generation Profile (SGP) 2 for the calculations of the relevant payment and market charges. Consumers need not install any meters. For CCs who do not wish to be paid for the excess electricity sold to the grid, they do not need to register with EMC as Market Participant or with SPS under the ECIS. They 2 The SGP is approved by the Energy Market Authority (“EMA”) and is based on factors such as Singapore's historical average solar irradiance from 7am to 7pm. This is standardised for all consumers with embedded solar PV systems and will be updated by EMA as new information becomes available. December 2022 10 Solar PV – User Guide for Non-Residential Consumers will not be eligible for the ‘net settlement’ scheme and also not be subjected to the applicable market charges. 5.2 Solar PV system 1 MWac and above but below 10 MWac There are various options for CCs to sell excess electricity back to the grid: i. Register with SPS under the Enhanced Central Intermediary Scheme. Under this simplified arrangement, they will be paid the weighted average nodal price through SPS, for the selling of excess solar electricity back to grid. SPS will act as a central intermediary, by passing through the payment and relevant market charges to consumers. Such consumers can either choose (a) to install a meter to accurately measure the solar electricity generated, or (b) to estimate their solar generation. For option (a), consumers will need to install the relevant metering arrangement at each generation point. More details on the meters can be found in Section 8, AMI Meter Charges. For option (b), the solar generation will be estimated based on the SGP for the calculations of the relevant payment and market charges. Consumers need not install any meters. ii. Register with the EMC as Market Participant. Under this existing arrangement, the CCs are required to register with the Energy Market Company (EMC) as Market Participant (MP); and to register their Solar Generation Facility, in order to receive payment for the selling of the excess solar electricity back to the grid. They will be paid nodal price for the selling of excess solar electricity back to the grid, and are subjected to the applicable market charges. Such consumers can either choose (a) to install a meter to accurately measure the solar electricity generated, or (b) to estimate their solar generation. For option (a), consumers will need to install the relevant metering arrangement at each generation point. More details on the meters can be found in Section 8, AMI Meter Charges. For option (b), the solar generation will be estimated based on the SGP for the calculations of the relevant payment and market charges. Consumers need not install any meters. The required registration documents can be found below. Market Participant Registration • MP Registration form • Signed PSO-MP Agreement and Generation Facility Operating (GFO) Agreement with PSO (if applicable) Generation Facility Registration • The Generation Facility Registration form • Approved Connection Agreement from SP PowerAsset • Signed MSSL-MP Agreement December 2022 11 Solar PV – User Guide for Non-Residential Consumers All the documents should be approved before the solar PV system is turned on. iii. Register with EMC as Market Participant (IGS non-exporting). For consumers with embedded solar PV systems below 10 MWac who are not eligible for option (i) or (ii) and will not be selling any electricity back to the grid, they can undergo a streamlined market registration process and pay EMC an estimated fixed charge determined by EMA. This fixed charge will be based on the SGP and the historical average rates of the respective charges. For options (i) and (ii), CCs would need to register their load and generation accounts under the same entity with SPS. A summary of the market payments and charges for the respective options can be found in the table below. Table 2: Market Payment and Charges for Solar PV Systems less than 10 MWac Applicable Payments / Charges Energy Generation CCs with Non-Registered Solar PV System (applicable for less than 1 MWac) Energy Payment / Charges Not Eligible for Payment CCs with EMC/ECIS- Registered Solar PV System • For CCs with EMCregistered solar PV system: Nodal Price • For CCs with CIS-registered solar PV system: Weighted Average Nodal Price (to be paid based on net export) Energy Consumption Spinning Reserves 3 • For CCs who buy electricity from the market: Uniform Singapore Electricity Prices (USEP) + Hourly Energy Uplift Charge (HEUC) • For CCs who buy electricity from retailers: Agreed Retail Price for Energy (to be charged based on meter’s import channel) Reserves Charges • For CCs who buy electricity from the market: Uniform Singapore Electricity Prices (USEP) + Hourly Energy Uplift Charge (HEUC) • For CCs who buy electricity from retailers: Agreed Retail Price for Energy (to be charged based on net import) Not Applicable (subject to change based on the New Pricing Mechanism Framework) 3 Spinning reserves charge is recovered from all generation facilities scheduled (less the first 5 MWh of each facility, which is allocated the cost of regulation reserve) operating in each half hour dispatch period based on the ‘modified runway model’. December 2022 12 Solar PV – User Guide for Non-Residential Consumers Applicable Payments / Charges Regulation Reserves (i.e. AFP) 4 EMC Fees Power System Operator (PSO) Fees Market Support Services (MSS) Charge Monthly Energy Uplift Charge (MEUC) Use of System (UOS) Uncontracted Capacity Charge (High-Tension & Above Network only) CCs with Non-Registered Solar PV System (applicable for less than 1 MWac) Half-hourly AFP (to be charged based on meter’s import channel) CCs with EMC/ECIS- Registered Solar PV System Half-hourly AFP (to be charged based on gross generation and gross consumption) Non-Reserves Market Charges Yearly revised EMC Fees Yearly revised EMC Fees (to be charged based on (to be charged based on net meter’s import channel) import or net export) Daily revised PSO Fees Daily revised PSO Fees (to be charged based on (to be charged based on net meter’s import channel) import or net export) Yearly revised MSS Charge Yearly revised MSS Charge (to be charged based on (to be charged based on net meter’s import channel) import only) Monthly revised MEUC prices Monthly revised MEUC prices (to be charged based on (to be charged based on net meter’s import channel) import only) Grid Charges Yearly revised UOS Charge (to be charged based on import channel) Cost is dependent on type of backup required 5.3 Solar PV systems 10 MWac and above For consumers with solar PV systems 10 MWac and above, they are required to register with the Energy Market Company (EMC) as Market Participant (MP); and to register their Solar Generation Facility, in order to receive payment for the selling of the excess solar electricity back to the grid. They will be paid nodal price for the selling of excess solar electricity back to the grid, and are subjected to the applicable market charges. In addition to that, consumers would need to register their load and generation accounts under the same entity with SPS. The required registration documents can be found below. Market Participant Registration • MP Registration form • Signed PSO-MP Agreement and Generation Facility Operating (GFO) Agreement with PSO (if applicable) 4 Regulation reserves charge is recovered from all loads and the first 5 MWh of each generation facility (including all solar PV systems generation facilities that are registered under CIS) in each half hour dispatch period. December 2022 13 Solar PV – User Guide for Non-Residential Consumers Generation Facility Registration • The Generation Facility Registration form • Approved Connection Agreement from SP PowerAssets • Signed MSSL-MP Agreement All the documents should be approved before the solar PV system is turned on. A summary of the market payments and charges for consumers with solar PV systems 10 MWac and above can be found in the table below. Table 3: Market Payment and Charges for Solar PV Systems 10 MWac and above Applicable Payments / Charges Energy Generation Energy Consumption Spinning Reserves Regulation Reserves (i.e. AFP) EMC Fees Power System Operator (PSO) Fees Market Support Services (MSS) Charge Monthly Energy Uplift Charge (MEUC) Use of System (UOS) Uncontracted Capacity Charge (High-Tension & Above Network only) Description Energy Payment / Charges Nodal Price (to be paid based on net export) • For CCs who buy electricity from the market: Uniform Singapore Electricity Prices (USEP) + Hourly Energy Uplift Charge (HEUC) • For CCs who buy electricity from retailers: Agreed Retail Price for Energy (to be charged based on net import) Reserves Charges Subject to change based on the New Pricing Mechanism Framework Half-hourly AFP (to be charged based on gross generation and gross consumption) Non-Reserves Market Charges Yearly revised EMC Fees (to be charged based on net import or net export) Daily revised PSO Fees (to be charged based on net import or net export) Yearly revised MSS Charge (to be charged based on net import only) Monthly revised MEUC prices (to be charged based on net import only) Grid Charges Yearly revised UOS Charge (to be charged based on import channel) Cost is dependent on type of backup required December 2022 14 Solar PV – User Guide for Non-Residential Consumers 5.4 Solar Generation Profile Grid Back-up Scheme For Summation Scheme consumers who opt for SGP, there may be instances where they will incur uncontracted capacity charge. For example, on a rainy or cloudy day, they will be consuming more electricity from the grid as their solar PV system may be generating little or no electricity. However, as the SGP is a fixed output throughout the year, it would indicate that the solar installation is still generating. Hence, before deciding on the type of backup scheme and whether to opt for SGP or meters, consumers should assess their consumption profile and operational needs. They should also consider carefully the costs and benefits, including the risks and uncertainties due to weather variability. Reactive Power Currently in the Transmission Code, High-Tension consumers would be required to implement power factor correction measures, if deemed necessary by the Transmission Licensee, to maintain a power factor of no less than 0.85. This is because a load with high reactive power will require more current-carrying capacity from the grid. For solar consumers who opt for SGP, there may be instances where they are penalised due to differences between active power output based on the SGP and active power output based on actual generation. This affects the calculation of gross load, on which reactive power penalties are determined. Hence, consumers who opt for SGP may risk incurring reactive power penalties when actual generation values differ from SGP values. If so, consumers can opt out of the SGP and install physical meters to accurately measure the active power output. 6. Intermittency Pricing Mechanism Given the intermittent nature of solar PV, reserves from conventional power sources are required to ensure system stability. For example, cloud cover or shadows may cause solar PV output to drop quickly, which requires the need for reserves to make up for the shortfall. Without the back-up through reserves sources, consumers are exposed to the risk of power disruptions, which happened in other countries with large amounts of intermittent generation. December 2022 15 Solar PV – User Guide for Non-Residential Consumers To ensure the sustainable growth of solar, a balance has to be struck between the benefits of solar generation and the intermittency costs it imposes on the system. Hence, it is appropriate to consider a mechanism, Intermittency Pricing Mechanism (IPM), to allocate the fair share of reserves costs to solar. Upon its implementation, the IPM will apply to all IGS, except for certain groups which the EMA had previously indicated that would not be subject to the IPM. The groups include: a. Residential consumers with embedded solar PV systems below 1 MWac; and b. Non-residential consumers with embedded solar PV systems connected to the system on or before 31 January 2018, unless (i) they retrofit their IGS systems such that re-commissioning by SP PowerGrid would be required in the process; or (ii) 25 years from the commissioning date of their existing IGS systems, whichever occurs earlier. More details on the IPM can be found in EMA’s Consultation Paper. 7. Monitoring Requirements With the expected increase in solar PV systems in Singapore, the Power System Operator (PSO) would need to manage the intermittent nature of such sources to ensure that the security and reliability of the power system is not compromised. Most importantly, PSO also needs to ensure that sufficient reserve capacity is available to respond to sudden fluctuations in solar output. Hence, PSO shall require solar PV systems with an installed capacity of 1 MWac and above at each site/facility to provide the Active Power output (AC-side) of its solar PV system(s), sampled at one-minute intervals and solar irradiance from sensor installed in close proximity to the PV panels. For more detailed technical requirement, please contact EMA at EMA_PSO_EMS@ema.gov.sg. Localised Network Limit As there may be physical constraints of each network ring, there could be a limit to the amount of solar PV systems that the network circuit can support. Therefore, depending on the limitations in that area, the permissible capacity of solar PV systems in each location may differ. Hence, parties who wish to invest in solar PV systems should check if there are possible network constraints in their preferred locations, before making their investment decisions. December 2022 16 Solar PV – User Guide for Non-Residential Consumers 8. AMI Meter Charges This section is only applicable to consumers who register their embedded solar PV systems with SPS under the Central Intermediary Scheme, or with EMC as a Market Participant. The owner of the generation facility (i.e. solar PV system) is the Meter Equipment Service Provider (MESP) for the meter installation associated with it. However, consumers with embedded generation facility (with installed capacity of less than 10 MWac) may choose to engage SPPG to provide, install and maintain the generation meter. The fees applicable for providing such services by SPPG are shown in the tables below: Table 4.1: Metering Charges for Generation Meters (inclusive of 7% GST before 1 st Jan 2023) Per Generation Unit / Metering Point Main & Check Meters At 66kV and above Main & Check Meters At 6.6kV / 22kV Main & Check Meters At Low Tension Main Meters Only At Low Tension Upfront charge (One time) $5,938.50 $5,938.50 $2,247.00 $1,498.00 Monthly charge (Recurring) $214.00 $85.60 $42.80 $21.40 Miscellaneous charge a) Attending to request for site enquiry during office hours (minimum 3 hours per request). b) Attending to communication / meter failure during office hour. Charges will be waived if it is due to equipment failure. c) Attending to adhoc request by customer for meter accuracy test with SAC- SINGLAS test report. $42.80 per hour $42.80 per hour $42.80 per hour $42.80 per hour $85.60 per trip $85.60 per trip $85.60 per trip $85.60 per trip $1,926.00 per meter $1,926.00 per meter $706.20 per meter $706.20 per meter December 2022 17 Solar PV – User Guide for Non-Residential Consumers Table 4.2: Metering Charges for Generation Meters (inclusive of 8% GST with effect from 1 st Jan 2023) Main & Check Meters Main & Check Meters Main & Check Meters Main Meters Only Per Generation Unit / Metering Point At 66kV and above At 6.6kV / 22kV At Low Tension At Low Tension Upfront charge (One time) $5,994.00 $5,994.00 $2,268.00 $1,512.00 Monthly charge (Recurring) $216.00 $86.40 $43.20 $21.60 Miscellaneous charge d) Attending to request for site enquiry during office hours (minimum 3 hours per request). e) Attending to communication / meter failure during office hour. Charges will be waived if it is due to equipment failure. f) Attending to adhoc request by customer for meter accuracy test with SAC- SINGLAS test report. $43.20 per hour $43.20 per hour $43.20 per hour $43.20 per hour $86.40 per trip $86.40 per trip $86.40 per trip $86.40 per trip $1,944.00 per meter $1,944.00 per meter $712.80 per meter $712.80 per meter 9. Decommissioning Requirements If you intend to decommission the entire solar PV system installed in your premises any time after they have been connected to the Transmission System, your appointed LEW will have to complete the decommissioning form and submit to SP Powergrid Ltd at least 30 days in advance before the intended decommission commences. However, if the intent is to revise the solar PV capacity installed in your premises any time after they have been connected to the Transmission System, your appointed LEW will have to complete the online Application Form and submit the following documents to SPS via Singapore Power (SP) eBusiness Portal: • Document Checklist and Declaration of Compliance to SP Powergrid’s (SPPG) Technical Requirements • Application for Net Export Rebate Form • Letter of Consent • PQ Compliance Report • Inverter(s) Specifications December 2022 18 Solar PV – User Guide for Non-Residential Consumers • Solar panel(s) Specifications • Inverter(s) Type Test Reports (Harmonics, Flicker, DC Injection) • Single Line Diagram (from PV system to Point of Common Coupling (PCC) • PSO Data Form (only applicable for solar PV system 1 MWac and above) • Certificate of Compliance (only applicable for licensed installation who are eligible to appoint their LEW to commission the solar PV system) • Commissioning Declaration (only applicable for licensed installation who are eligible to appoint their LEW to commission the solar PV system) December 2022 19 Solar PV – User Guide for Non-Residential Consumers 10. PV Directory For enquiries on the following matters pertaining to solar PV systems, you may wish to contact the following: Energy Market Authority (EMA) Matters on: Electricity Licences Electrical Installation Licensed Electrical Workers (LEWs) Policy and Regulatory Framework Monitoring Requirements Contact Information Economic Regulation & Licensing Department Email: ema_enquiry@ema.gov.sg Tel: 6835 8000 Electricity Resilience & Regulation Department Email: lei_ema@ema.gov.sg Tel: 6835 8000 Policy Department Email: ema_ppd@ema.gov.sg Tel: 6835 8000 Energy Management Systems Department Email: EMA_PSO_EMS@ema.gov.sg Tel: 6835 8000 Energy Market Company (EMC) Matters on: Market Registration Market Payment / Charges Contact Information Market Administration Email: MPRegistration@emcsg.com Tel: 6779 3000 SP PowerGrid (SPPG) Matters on: Technical Clarification regarding Connection to the Grid Contact Information Asset Management & Projects Department Email: DERenquiries@spgroup.com.sg Tel: 6916 8888 SP Services (SPS) Matters on: Application for Connection to the Grid and Market Settlement with SPS Contact Information Electrical Installation Section Email: install@spgroup.com.sg Tel: 6916 7200 December 2022 20

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bizSAFE CONVENTION 2015 C15 Spreading the message SP PowerGrid encourages its partners to make safety a priority by hazel tan SINCE becoming a bizSAFE Partner in 2010, SP Power- Grid has proactively recruited its contractors and subcontractors to join the bizSAFE programme. SP PowerGrid is a subsidiary of the Singapore Power Group. Established in 2003, it manages Singapore’s electricity and gas transmission and distribution networks, and has more than 1.4 million industrial, commercial and residential customers. “We value the safety of our contractor workers just as highly as that of our employees. We set safety targets for our contractors and work closely with them to make sure those targets are met,” says Mr Peter Leong (right), managing director of SP PowerGrid. “We conduct dialogues with contractors and collaborate with them to identify activities where the safety risk exposure is relatively higher,” he adds. For example, upon identifying that workers face a higher risk of leg injuries when working in the vicinity of heavy machinery — such as excavators and milling and patching machines — during roadwork, SP PowerGrid invested in rear-view cameras and additional mirrors to mitigate the risks and ensure workers operating these machines do not injure fellow workers when reversing. It also installed alarms, whose constant beeping alerts surrounding workers that the machines are in operation. “We will be installing closed-circuit television cameras to monitor critical worksites 24/7 to identify and rectify unsafe practices and to encourage safe behaviour in workers. “This would also facilitate the learning and sharing of incidents and near-misses,” adds Mr Leong. Training contractors In addition to operational measures, SP PowerGrid has developed its own Safety@SPPG programme for contractors’ workers, educating them on, say, how they should go about doing some common tasks safely. “One key example is roadwork. To ensure workers understand the material, we conduct the course in the native language of workers who are less conversant in English. “Since the launch of the programme in July last year, we have trained more than 1,500 workers,” says Mr Leong. Becoming a contractor or subcontractor for SP PowerGrid requires at least bizSAFE Level 4 certification. To date, SP PowerGrid has partnered with 134 of its contractors, and helped them obtain at least bizSAFE Level 4 certification. This commitment to contractor workers’ safety has earned SP PowerGrid the bizSAFE Partner Award for the first time this year. The award, presented by the Workplace Safety and Health (WSH) Council, recognises companies that have achieved commendable WSH performances. Mr Leong says: “Singapore Power constantly engages the public on safety issues and formulates safety measures in consultation with community stakeholders. “Before commencing on construction works at our cable tunnel sites, for example, our project officers embarked on months of intensive door-to-door engagement with nearby residents and schools,” he says. The feedback received helps his team finalise safety measures that will protect both workers as well as the community at large, he adds. SP PowerGrid has developed its own Safety@SPPG programme that addresses safety issues on common tasks contractors’ workers carry out. PHOTOS: SINGAPORE POWER