News Release Daikin and SP Group Form New Joint Venture to Build Singapore’s Largest Industrial District Cooling System Singapore, 18 May 2022 – Daikin Singapore ("Daikin") and SP Group (“SP”) announced the formation of a new joint venture (JV), in conjunction with an earlier announcement by STMicroelectronics (ST) and SP to establish Singapore’s largest industrial district cooling system for ST’s Ang Mo Kio TechnoPark. The JV will build the district cooling system (DCS) which will have a cooling capacity of up to 36,000 refrigerant tonnes(RT). When completed in 2025, it will help ST achieve 20 per cent savings in cooling-related electricity consumption annually and support ST’s target of achieving carbon neutrality by 2027. Daikin and SP also signed a separate Memorandum of Understanding (MOU) to explore the potential of district cooling in other Southeast Asian countries, starting with Indonesia. Under the MOU, Daikin and SP will combine their expertise, experience and resources to bring this sustainable cooling solution to the various markets to help lower their energy consumption and reduce their carbon footprint. The expanded collaboration between both companies signifies their commitment to empower smart, low-carbon cities across the region, and to support Singapore’s sustainability ambitions under the Singapore Green Plan 20301. “We are excited to collaborate with SP Group, and we look forward to working together closely towards greater environmental sustainability”, said Mr Yoshihiro Mineno, Daikin Industries, Ltd. Moving towards a greener, cleaner future This project aligns with Daikin’s mission to build upon Singapore's ongoing roadmap for greener buildings as well as the longer-term vision for a Singapore Smart-city that includes sustainability in its advocacy. The JV will be 70 percent owned by SP and 30 percent by Daikin. It will build the new district cooling plant for ST Ang Mo Kio (AMK) Technology Park. By centralising chilled water production, the new facility is designed to optimise chiller efficiency and deliver a 24/7 chilled water supply to meet ST’s wafer fabrication needs. In addition, Daikin will be deploying one of its most efficient 2,000-tonne HFO Chiller for this project. HFO or Hydrofluro-Olefins is the new generation of synthetic refrigerants with zero ozone depletion effect and is designed to significantly reduce the Global Warming Potential2. Group Chief Executive Officer of SP Group, Stanley Huang, said, “We are honoured to partner Daikin in this joint venture to provide district cooling to STMicroelectronics at AMK TechnoPark. We look forward to a broader collaboration in Southeast Asia with Daikin.” Reducing carbon footprint and moving towards sustainability In line with the nation’s green vision, Daikin hopes to achieve net-zero by the year 2050 by reducing greenhouse gas emissions and is constantly working towards this goal. The company plans on achieving this by making conscious changes in its entire value chain: life cycle of products, manufacturing, work processes through solution propositions, innovative technologies, and the use of IoT and AI. The ultimate goal here is to contribute toward a cleaner, safer environment to combat climate change issues and move towards a sustainable future. Daikin Singapore has been working with a keen focus on lowering its carbon footprint. As such, the company plans on leveraging its latest chiller software and optimisation expertise3 for this project. Daikin is also planning to launch other green initiatives, including a solution that uses chemical-free water treatment4 that leverages applied electrochemistry and an intelligent controller to enhance system performance, providing a sustainable and scalable solution to large building HVAC systems and industrial chiller circuits, but also saves energy, water, maintenance and chemical costs in cooling water management. Daikin fully supports our national directions and is keen to play an active role in this journey, especially in going Green, Smart and Sustainable in the Living Environment. With this project, we are excited to take another step towards our goals for a sustainable smart nation,” said Mr Liu Shaw Jiun, Daikin Airconditioning Singapore Pte Ltd. Daikin and SP first collaborated back in 2020 to bring Singapore’s first large-scale residential centralised cooling system to the upcoming Tengah HDB Town. Both companies will continue to explore future opportunities to help create energy-saving models and help Singapore and the rest of Southeast Asia move towards a resilient, sustainable future 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, China and Vietnam. 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 worldwide. 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 Daikin Singapore In the beginning, Daikin Singapore has placed its strategic focus on HDB, building a stronger sales channel by developing Daikin Proshop and thereby differentiating itself from its competitors. With more than 50 years of history in Singapore, Daikin also drove expansion by launching differentiated products such as Remote Monitoring System (RMS), which provides energy optimization and predictive analytics. In Applied Product equipment (AP), which is mainly used in the commercial or industrial sector, it expanded sales by focusing on highly efficient products like magnetic-chiller products and airside using EC motors. Its services business was solely related to the repair and supply of spare parts and since with the acquisition of BMS Engineering, the company has started to focus on Indoor Air Quality (IAQ) and Eco-Friendly Maintenance, where it aims to support green building projects. Daikin will then optimize AC equipment and other building equipment implementation before moving towards providing a full suite of services by adding Energy Management to its portfolio to manage equipment for the whole building. The expansion of Daikin technology and know-how in the cooling industry has enabled Daikin to scale up their green projects to build District Cooling Networks for Tengah and now STMicroelectronics Website: https://www.daikin.com.sg - Ends - 1https://www.greenplan.gov.sg/splash 2https://iopscience.iop.org/article/10.1088/1757-899X/905/1/012070/pdf 3https://www.daikin.com.sg/building-solutions/bms/water-sideoptimisation 4https://www.daikin.com.sg/building-solutions/environmental-solutions/chemical-free-water-treatment

Media Release SP Group Launches One Of The World's First Blockchain-Powered Trading Of Renewable Energy Certificates City Developments Limited and DBS Bank on board as first buyers of certificates Enables local and international organisations – regardless of size, business or location - to meet their sustainability targets Singapore, 29 October 2018 - SP Group (SP) launched one of the world’s first blockchain-powered renewable energy certificate (REC) marketplace at the ASEAN Energy Business Forum (AEBF) on Monday, 29 October 2018. In conjunction with the launch, AEBF forum participants saw screenshots of the first purchases by buyers, City Developments Limited (CDL) and DBS Bank (DBS). Designed and built in-house by SP’s team of digital energy experts, this marketplace enables local and international organisations – regardless of size, business or location in the world – to trade in RECs. The unique attributes of blockchain technology will ensure the security, integrity and traceability of each REC transaction. This will drive the greater integration of renewable energy sources on the electricity grid. Launching the marketplace innovation at the opening session of the Forum on Monday 29 October 2018, SP’s Chief Digital Officer, Samuel Tan, said, “Through blockchain technology, we enable companies to trade in renewable energy certificates conveniently, seamlessly and securely, helping them achieve greener business operations and meet their sustainability targets.” The SP REC marketplace supports local, regional and international RECs. It also supports different supply options including types of sellers and renewable energy sources. SP announced that local organisations such as CDL and DBS, who are keen drivers of sustainable solutions, have signed on as REC buyers. Solar developers such as Cleantech Solar Asia and LYS Energy Solutions, with local and regional solar assets, have signed a collaboration with SP to place their solar assets on the marketplace for sale of RECs. Katoen Natie Singapore, a global chemical logistics company who will be launching Singapore’s largest single unit rooftop solar facility at a warehouse, has also come onboard as a REC seller. When companies purchase RECs, they are consuming electricity from renewable sources, sold to them by other companies that produce green energy. With SP’s blockchain-powered marketplace, buyers are automatically matched with sellers, around the globe, according to their preferences. This helps big and small organisations to achieve their green targets and strengthens cross-border sustainability efforts with SP’s international reach. It contributes to Singapore’s low carbon targets, as part of its Paris COP-21 agreement. Annex A Hear from our Partners “As a green advocate for over two decades, CDL has always been committed to embracing technology and solutions that reduce environmental impact. Given that buildings consume 40% of energy globally, increasing the use of solar energy and neutralising our operations’ carbon footprint has been a priority in the way we build and manage our projects. We are glad to support the innovative and timely initiative by SP Group to embrace blockchain technology as a platform to accelerate Singapore’s transition to a low-carbon economy.” Ms Esther An, Chief Sustainability Officer, City Developments Limited “As Southeast Asia’s largest bank, we recognise the leadership role we can play in promoting sustainable development, including supporting innovations in renewable energy. SP Group’s blockchain REC platform will make it more economically effective for organisations and will catalyse the transition towards a low carbon economy. We look forward to many more innovations in renewable energy technologies to achieve a sustainable, affordable, secure and inclusive energy future.” Mr Mike Power, Chief Operating Officer of Technology and Operations, DBS “Cleantech Solar is excited to be onboarded onto one of the world’s first blockchain-powered REC marketplace pioneered by SP Group. By having our 120 solar sites in Asia on board this platform, we can now allow consumers, who are unable to generate their own renewable energy, another reliable solution to achieve their clean energy goals. Cleantech Solar is proud to be a contributor to SP Group’s innovative green solutions and together to work towards a zero carbon future.” Mr Raju Shukla, Executive Chairman, Cleantech Solar Asia “We are very excited to be part of the SP REC marketplace. We are launching a 6.8 MWh Solar Power Facility in Singapore this week. The SP REC marketplace gives Katoen Natie access to a broader ecosystem to drive sustainability.” Mr Koen Cardon, Chief Executive Officer, Katoen Natie Singapore “Pioneering the RECs trading since 2016, LYS Energy has envisioned the potential of blockchain technology as a powerful catalyst of a sustainable and global widespread of renewable energies adoption. Innovation leadership is our company philosophy, we are delighted today to be partnering with SP Group to support this significant milestone, as a world-wide debut of ensuring interoperability towards smart grid success while helping companies to achieve their sustainability targets.” Mr Lionel Steinitz, Chief Executive Officer, LYS Energy Solutions 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

News Release SP GROUP PARTNERS CHEVRON TO OFFER ELECTRIC VEHICLE CHARGING AT SELECTED CALTEX SERVICE STATIONS Singapore, 22 March 2021 – SP Group (SP) and Chevron Singapore Pte. Ltd., which markets the Caltex TM brand, today announced a partnership to offer fast electric vehicle (EV) charging at selected Caltex service stations, delivering on-the-go convenience to electric vehicle motorists. To be located at four of Caltex’s service stations across Singapore, the initial batch of chargers will be strategically located across the Caltex network, at Chong Pang (North), Changi (East), Jurong Spring (West) and Dunearn (Central). These Caltex service stations will be equipped with 50kW direct current (DC) fast chargers that can charge up an EV in 30 minutes, versus a few hours required by the more commonly available alternating current (AC) chargers. Three service stations will each be equipped with one 50kW direct current (DC) fast charger. The fourth, at Changi, will have two 50kW DC charging points that are designed to allow a compatible car to charge up to a speed of 100kW, provided only one car is utilising the charging points. (Refer to the annex for the addresses of this first batch of service stations.) SP and Caltex will study EV charging usage patterns and behaviour at the stations to refine and enhance accessibility and utilisation, and plan for more charging points and locations. Group Chief Executive Officer of SP, Mr. Stanley Huang, said, “We are pleased to partner Caltex in our first collaboration with a fuels and lubricants retailer. This gives EV drivers greater convenience as it accelerates the accessibility of charging locations that are incorporated in our daily activities. Our aim is to build Singapore’s largest public EV charging network and expand our integrated green mobility solutions to meet the evolving needs and sustainability goals of businesses and individuals.” "Chevron is excited to partner with SP Group to provide EV chargers at selected Caltex stations in Singapore. It is Chevron’s goal to deliver affordable, reliable, and ever-cleaner energy that enables human progress," said Mr. Law Tat Win, Chevron Singapore Country Chairman. "We 1 endeavour to continually test, learn and explore how to enhance our product and service offerings for our Singapore customers at our Caltex stations.” This SP and Caltex partnership will better serve drivers choosing electric vehicles and help achieve a lower-carbon future for Singapore. This includes Caltex’s existing commercial customers who plan to electrify their fleets. Both companies will continue to explore initiatives to meet the EV needs for private ownership and commercial use. The chargers will be installed by the second quarter of 2021 and will be incorporated on the SP Utilities mobile app for ease of use. The SP Utilities mobile app allows EV drivers to search for the availability of the nearest charging points, receive real-time updates on their charging sessions and make direct, cashless payment. -Ends- 2 About SP Group SP Group is a leading utilities group in the Asia Pacific, enabling a low-carbon, smart energy future 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 energy solutions such as cooling and heating systems for business districts and residential townships, electric vehicle fast charging and green digital energy management tools 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 Chevron Singapore Chevron Singapore Pte. Ltd. markets the 85-year-young Caltex brand, which is Chevron’s customer-facing brand in Asia Pacific and parts of the Middle East and Africa. The Caltex retail network in Singapore consists of 26 Caltex service stations and StarMart-branded convenience stores. All Caltex service stations accept the CaltexGO mobile payment for fuel purchases. Products such as the all new Caltex with Techron® with Clean & Glide Technology™ petrol, Caltex Diesel with TechronD® and Havoline® motor oil are also available at all Caltex service stations. In partnership with NTUC Link, the Plus! loyalty program also enables motorists to earn 3 LinkPoints for every litre of fuel purchased at Caltex. For more information, visit www.caltex.com.sg. 3 ANNEX A: Address of service stations Address Chong Pang (North) 3700 Yishun Ring Rd, Singapore 768690 Changi (East] 78 Changi Rd, Singapore 419714 Jurong Spring (West) 100 Jurong West Ave 1, Singapore 649519 Dunearn (Central) 130 Dunearn Rd, Singapore 309436 4

News Release Strides and SP Group to Launch Electrification-As-A-Service (EaaS) for EV Customers Singapore, 28 May 2021 – SP Group (SP) and Strides Transportation (Strides) have signed an agreement to launch Electrification-as-a-Service (EaaS) as a new offering to Strides’ drivers and fleet customers. Strides will leverage SP’s high-speed public EV charging network, which is the largest of its kind in Singapore, to provide the service. Both parties also agreed on a strategic collaboration to explore various technological solutions to enhance the EaaS offering for EV customers, including the provision and operation of charging points at customer premises. Through this tie-up, Strides, a subsidiary of SMRT Road Holdings, will offer its EV drivers and corporate customers access to high-speed chargers around Singapore. This will provide greater convenience and a quicker turnaround time for its drivers. SP Mobility, a subsidiary of SP, is a dominant player and an early mover in EV charging infrastructure. It currently has 340 charging points set up in 71 locations[1] including shopping malls, commercial buildings, business parks and industrial sites islandwide. One-third of SP’s nationwide charging network are high-speed DC chargers. The signing was witnessed by Group Chief Executive Officer of SP, Mr Stanley Huang, and SMRT Corporation’s Group Chief Executive Officer, Mr Neo Kian Hong. Mr Huang said, “We are committed to accelerating Singapore’s green mobility transition and enabling large-scale adoption through accessibility, convenience and affordability. In addition to building the most pervasive network infrastructure in Singapore, we will be drawing on our technology to find new ways to meet Stride’s business needs, and the differentiated charging needs of the EV ecosystem. I am confident this partnership will provide insights and spur innovations to drive greater operational efficiencies and sustainable outcomes for customers and drivers.” Mr Tan Kian Heong, President, SMRT Road Holdings, said, “Electric vehicle charging is key to the adoption of EV and migration to green transport modes in Singapore. As a player in the EV ecosystem, we want to assure all our partners that Strides’ Electrification-as-a-Service has a suite of solutions to meet their needs. We look forward to our collaboration with SP Group, which will go a long way towards powering our fleet of EVs, which include the electric taxis that are coming our way.” Strides’ EaaS is a suite of end-to-end solutions that include the provision and maintenance of a wide range of electric vehicles, charging infrastructure and a digital management platform. Strides and SP aim to jointly develop innovative solutions that deliver a seamless user experience and help companies and fleet owners accelerate their sustainability plans. SMRT recently announced its plans to convert its entire taxi fleet to 100% electric within the next five years. The first batch of 300 electric taxis is slated to arrive in Singapore progressively from July this year. The electrification of the entire taxi fleet is part of SMRT’s growth strategy in green businesses under its urban mobility services arm, Strides Mobility. SP had earlier signed partnerships with the Goldbell Group, Grab and Schneider Electric to support the charging needs of their EV fleets. In recent months, SP announced a partnership with Chevron to install chargers at four Caltex service stations, and added chargers at locations such as Paya Lebar Quarter, Great World City and Orchid Country Club. [1] Total number of charging points and locations accurate as at 31 March 2021

News Release UOB and SP Group partner to offset 100% or more of household electricity carbon emissions for UOB EVOL cardholders Cardholders can now achieve their sustainability goals seamlessly and conveniently when they charge their utilities bills to their card Singapore, 23 November 2022 – UOB EVOL cardholders will now be able to offset 100 per cent or more of their household electricity carbon footprint for free when they charge SP Group’s (SP) utilities bills to their credit card, via a new exclusive feature jointly launched by UOB and SP this month. With this new feature, when customers charge SP utilities bills to their UOB EVOL card, UOB will fund and contribute 2 per cent of the billed amount to purchase My Green Credits on the SP app on behalf of the customer. My Green Credits is an affordable and convenient way for customers to get on the sustainability movement by greening their energy consumption through the purchase the amount of “green credits” in the form of Renewable Energy Certificates (RECs)1. For example, when customers charge a $90 utilities bill to their UOB EVOL card, they will receive $1.80 worth of complimentary My Green Credits from UOB, equivalent to 2% of the billed amount. My Green Credits is purchased at a cost of S$0.12 per 25 kWh, which will translate to offsetting 375 kWh (kilowatt hour) or equivalent to an average national 4-room HDB flat’s electricity usage. This is equivalent to offsetting 100 per cent of the home’s electricity carbon footprint (see Annex for illustration). New UOB EVOL cardmembers paying their SP bills via the SP app will automatically enjoy the complimentary My Green Credits, while existing cardholders who are using the SP app to pay their bills before 10 November 2022 will simply need to do a one-time re-add of their EVOL card as a payment method to be eligible. My Green Credits will be automatically reflected within the customer’s SP app, with no additional effort required from them when bill payments are made. This benefit is available for both one-time and recurring SP bills payments. UOB EVOL card is the first in the market to partner with SP Group, Singapore’s national grid operator and leading sustainable energy solutions provider in the region, to offer customers complimentary My Green Credits when they use their EVOL Card to make utilities payment. This feature is applicable to all existing and new EVOL cardholders. The My Green Credits purchased will go towards supporting sustainable energy project developments in the region for the generation of green energy. 1Renewable Energy Certificates (RECs) are tradable green energy attributes that represent units of electricity generated from renewable energy generation facilities. These facilities comply with and are registered under internationally recognised standards, such as the I-REC standard, and are eligible to be issued RECs for every unit of electricity generated. A credit card that supports the green initiative UOB EVOL card is designed to appeal and serve the needs of younger customers, particularly their increasing focus on sustainability. The UOB EVOL Card is Southeast Asia’s first credit card to use bio-sourced materials to minimise ecological footprint. The EVOL Card is made of 84 percent polylactic acid (PLA) and created from renewable sources which are safe for incineration process. An EVOL Card that has expired and discarded is biodegradable in an industrial facility. Each EVOL card cuts down the use of plastic by 84 per cent and reduces carbon footprint by 10 grams per card. EVOL card also has a strong partnership with over 30 green partners to increase customers’ awareness of sustainability in their daily spending. This new card feature is another innovative initiative to further help them contribute to sustainable efforts seamlessly and conveniently. Ms Jacquelyn Tan, Head of Group Personal Financial Services, UOB, said “We understand that every customer has unique needs, preferences and goals, and this drives us to do right by them, to serve them in a way that meets their needs. Our wide suite of credit cards provides a comprehensive range of benefits and rewards to cater to different groups of customers on their differing needs. Through our partnership with SP, we are happy to further support the younger generation’s sustainability goals with our UOB EVOL card. This also shows UOB’s commitment towards sustainability, as we empower customers to work with us to tackle climate change and to forge a more sustainable future together.” Mr Luke Tang, Head of Strategy and Sustainability, SP Group, said “We are pleased to partner UOB to catalyse behaviour that promotes sustainability and the use of renewable energy certificates on the SP App to green household electricity consumption. As younger customers chart their sustainability journeys, we look forward to empowering them with green platforms and resources and collectively accelerate Singapore’s progress towards net zero.” The SP app was launched by SP as the first sustainability lifestyle app in Singapore. It aims to incorporate green solutions and initiatives to provide users with insights and solutions to manage their utilities and to reduce their carbon footprint. In addition to My Green Credits, users can also use the app to manage their utilities, reduce electricity consumption and contribute to Singapore’s sustainability targets to achieve a low-carbon future. On another sustainable front, as part of the UOB EVOL Card My Green Credits launch, SP supported National Parks Board’s (NParks) OneMillionTrees movement to plant a million more trees across Singapore by 2030 through NParks’ registered charity and IPC, Garden City Fund’s Plant-A-Tree programme. UOB and SP will plant 50 trees in April 2023, bringing us closer to realising our vision of becoming a City in Nature, a key pillar of the Singapore Green Plan 2030. Strategic partnership to create better solutions for customers This year marks the fourth year of partnership between UOB and SP, with joint efforts to empower customers on their green goals. Previous collaborations include the purchase of RECs through SP as part of a National Day promotion in 2021 for the EVOL card. UOB has also launched an API with SP in 2020, to allow UOB customers to instantly use their UNI$ to off-set their utility bills. Moving forward, UOB will work with SP to launch another new feature in the first quarter of 2023 that allows UOB cardholders to use their UNI$ to redeem for My Green Credits via the SP mobile app. They can choose which local or international renewable energy projects that they would like to support with the My Green Credits redeemed. Under the My Green Credits initiative, SP is supporting various green projects ranging from a solar farm in Vietnam, to a wind farm in Thailand, to a solar rooftop system in Singapore, to help reduce emissions and impact on the environment. In line with Singapore’s strong push to electrify its vehicle population, ecosystem, UOB and SP also have plans to provide promotional offers to customers who use their UOB cards to pay for electric vehicles (EV) charging at SP EV charging points. Over the past 2 years, UOB has been building up a suite of sustainable future solutions to make it simpler for customers to create impact with their everyday choices. The Bank has an established sustainable investing approach which set standards for its Singapore and regional footprint by curating a suite of sustainable investments across funds, bonds and structured products. This includes its first UOB Personal Financial Services (PFS) secured loans green product framework, serving as the foundation of its Go Green home and car loans. The framework leverages insight from Morningstar Sustainalytics, a leading global provider of ESG research, ratings, and data. In November 2022, UOB also will be availing a digital doorway to sustainable banking on the UOB TMRW app, allowing customers to easily access green deals, investments and banking products on mobile. Through the app, customers will also receive eco-friendly tips for the holiday festivities, and personalised insights to bank and live more sustainably in 2023.   ANNEX: Illustration of offsetting customers’ carbon footprint with UOB EVOL Card

Media Release New Residential Demand Response Pilot to Empower Households to Reduce Electricity Consumption during Demand Peaks The Energy Market Authority (EMA) and SP Group (SP) will pilot a Residential Demand Response (R-DR) programme to empower households equipped with smart meters to actively reduce electricity consumption during demand peaks in the power system. Targeted to be launched by second half of 2024, this pilot is the first-of-its-kind in Singapore to call upon households to make a significant difference for a more resilient and sustainable energy future. With system peak demand forecasted to increase at a compound annual growth rate of up to 6.5% over the next five years, reducing electricity consumption temporarily during peak demand periods, otherwise known as Demand Response (DR), helps to keep the power system running smoothly and more efficiently by making use of demand-side resources in addition to supply-side (such as large conventional power plants) to balance electricity demand and supply.  For commercial and industrial companies, EMA has seen about a 1.5 times increase in demand-side resources, totaling to about 100MW since the launch of EMA’s regulatory sandbox[1]. With smart meters progressively being deployed to residential and non-residential consumers, more consumers will soon be able to contribute to DR, by using these smart meters to monitor their electricity consumption, making electricity management simpler and more rewarding. Consumers can keep track of their weekly carbon emissions and adjust their electricity consumption habits accordingly to help reduce emissions, thereby minimising their environmental impact. As of September 2023, SP has installed more than 834,000 smart electricity meters across residential and non-residential premises. The residential demand response pilot will use the SP mobile application (SP app) to send alerts to participating households to temporarily reduce or defer their electricity consumption. Households can take action by deferring the use of home appliances such as washing machines or dishwashers, or lower the temperature or even switch off air-conditioning. Participants will in turn enjoy benefits such as financial incentives. On the pilot for households, Mr Ngiam Shih Chun, Chief Executive of EMA, said: “The demand response pilot helps to involve households in lowering electricity demand during peak periods. This can help create a more sustainable and efficient energy ecosystem for everyone.” Mr Stanley Huang, Group Chief Executive Officer of SP Group, said: “Partnering EMA on this pilot, SP Group will empower consumers with digital solutions to be more energy efficient and reduce carbon emission. Enhanced features on our SP App will provide consumers with timely and useful information on their utilities usage and patterns. Insights from this data are aimed at nudging consumers to make adjustments easily to reduce their consumption." [1] In 2022, EMA launched a two-year regulatory sandbox for commercial and industrial companies to optimise their energy consumption. Participating companies will have to manage their electricity demand when activated and receive payments as an incentive for reducing their electrical demand on the national power grid. -- End -- About the Energy Market Authority The Energy Market Authority (EMA) is a statutory board under the Singapore Ministry of Trade and Industry. Through our work, we seek to build a clean energy future that is resilient, sustainable, and competitive. We aim to ensure a reliable and secure energy supply, promote effective competition in the energy market and develop a dynamic energy sector in Singapore. Visit www.ema.gov.sg for more information. 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, as well as sustainable energy solutions in Singapore, China, Thailand and Vietnam. 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 worldwide. 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 stations and digital energy solutions for customers in Singapore and the region. For more information, please visit spgroup.com.sg or follow us on Facebook at spgrp.sg/facebook, LinkedIn at spgrp.sg/linkedin and Instagram at spgrp.sg/Instagram.

Singapore Institute of Power and Gas Gas Market Structure and Gas Network Code Course Code: GRG02 COURSE OBJECTIVES Upon completion of this course, participants will be able to: • Describe the gas market structure in Singapore • Interpret the Gas Network Code (GNC) issued by the Energy Market Authority (EMA) • Describe the roles and responsibilities of EMA, designated gas transporter and the relevant gas shippers • Explain the contractual agreement between gas transporters and shippers • Apply the rules and requirements for gas transportation MAIN CONTENTS • Overview of Natural Gas and LNG Developments in Singapore • Overview of Natural Gas Transmission Network • Gas Market Regulatory Framework • Introduction to Gas Network Code & Defined Terms • System Capacity Right • Nomination & Operating Schedule • Quantities, Commodity Variances and Pipeline Imbalances • System Offtake Point Administration • Metering • System Stress • Scheduling Procedure and Methodology • Invoicing and Payment METHODOLOGY Lecture TARGET AUDIENCE Engineering, technical, and administrative staff who are involved with the Gas Market and planning work COURSE DETAILS Duration : 7 hours Mode of Delivery : Face-to-face or Synchronous E-learning Certification : SIPG Certificate of Completion PDU by PE Board : 6 Additional Requirement/s : Not applicable COURSE FEES Full Course Fee : S$800 (before GST) For Singapore Citizens/PR/LTVP+* : Not applicable For Singapore Citizens (40 years old and above) : Not applicable Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 4.0_0323 Singapore Institute of Power and Gas ADDITIONAL REMARKS • Trainee must attain at least 75% attendance rate and pass the assessment to receive Certificate of Completion and funding grant (if applicable). • Subsidy of up to 70% is applicable for Singapore Citizens, Permanent Residents or Long-Term Visitor Pass Plus (LTVP+) Holders, subject to funding agency’s approval. • Enhanced subsidy of up to 90% is applicable for Singapore Citizens aged 40 years and above, subject to funding agency’s approval. Note that GST payable will be computed from fee after 70% funding. • Professional Development Unit (PDU) is applicable for Professional Engineers registered under the Professional Engineers (PE) Board only. • All published fees are subject to prevailing GST. CONTACT US For more information, please contact SIPG at +65 6916 7930 or email training-institute@spgroup.com.sg. OTHER SIPG COURSES For more courses, visit our website at: https://www.spgroup.com.sg/about-us/training or Scan the QR code below: Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 4.0_0323

Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20140724] Lianhe Zaobao - Reduced Noise At Cable Tunnel Worksites For Residents Living Nearbyhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/e89eb651-2e6f-4a76-bb79-89333e852f90/%5B20140724%5D+Lianhe+Zaobao+-+Reduced+Noise+At+Cable+Tunnel+Worksites+For+Residents+Living+Nearby.pdf?MOD=AJPERES&CVID= 卡 车 改 道 又 设 隔 音 墙 电 缆 隧 道 工 程 “ 静 音 ” 减 民 扰 发 展 商 在 东 西 和 南 北 两 条 电 缆 隧 道 施 工 处 采 取 了 多 项 亲 邻 措 施 , 包 括 增 设 临 时 车 道 、 限 制 每 日 进 出 的 车 辆 数 目 等 。 由 于 工 地 紧 挨 学 校 , 承 包 商 每 天 还 派 人 指 挥 交 通 , 确 保 下 课 学 生 安 全 过 马 路 。 杨 萌 报 道 yangmeng@sph.com.sg 中 央 高 速 公 路 在 马 里 士 他 路 出 口 处 前 有 个 巨 型 工 地 , 虽 然 已 经 施 工 一 年 半 , 工 地 看 起 来 却 相 当 安 静 。 这 里 是 本 地 最 深 地 底 电 缆 隧 道 工 程 南 北 和 东 西 线 路 的 交 汇 点 。 为 确 保 工 程 不 影 响 居 民 和 学 生 作 息 , 发 展 商 新 加 坡 能 源 和 负 责 该 段 工 程 主 要 承 包 商 SK 建 筑 及 工 程 公 司 采 取 了 不 少 亲 邻 措 施 , 包 括 筑 起 一 道 新 加 坡 能 源 在 中 央 高 速 公 路 靠 近 马 里 士 他 路 出 口 处 特 设 一 条 临 时 车 道 让 重 型 车 辆 进 入 , 这 样 车 辆 就 无 需 进 入 梅 路 的 组 屋 区 , 可 确 保 居 民 和 学 生 的 安 全 。( 新 能 源 提 供 ) 9 米 高 的 隔 音 墙 。 这 个 面 积 超 过 2000 平 方 米 的 工 地 有 两 个 出 入 口 , 一 个 在 中 央 高 速 公 路 , 一 个 在 梅 路 (May Road)。 梅 路 这 边 的 工 地 紧 挨 宏 文 学 校 , 承 包 商 每 天 下 午 放 学 时 间 都 会 派 人 充 当 交 通 指 挥 员 , 并 竖 起 障 碍 物 避 免 学 生 乱 过 马 路 。 宏 文 学 校 有 1000 多 名 学 生 , 工 地 附 近 则 有 至 少 900 户 居 民 。 黄 埔 麦 奈 雅 路 (Whampoa McNair) 居 民 委 员 会 主 席 黄 业 强 说 , 应 居 委 会 要 求 , 承 包 商 在 下 午 学 生 放 学 时 段 停 工 , 供 应 商 也 避 免 在 这 个 时 段 送 货 。 他 说 :“ 居 委 会 、 发 展 商 和 承 包 商 的 职 员 还 挨 家 挨 户 走 访 了 附 近 居 民 , 通 知 他 们 施 工 进 展 并 听 取 建 议 。” 施 工 一 年 半 接 投 诉 少 过 15 起 目 前 , 居 委 会 收 到 少 过 15 起 居 民 投 诉 , 曾 有 一 名 住 在 梅 路 的 居 民 反 映 工 地 有 噪 音 和 灰 尘 , 承 包 商 就 在 面 向 她 住 家 的 工 地 大 门 旁 挂 起 隔 音 布 。 该 工 地 在 2012 年 底 开 始 施 工 , 初 期 是 挖 掘 竖 井 (shaft), 目 前 已 进 入 钻 隧 道 阶 段 。 这 一 段 的 隧 道 在 地 底 58 米 处 , 无 需 爆 破 , 因 此 噪 音 低 , 一 些 比 较 会 制 造 噪 音 的 机 器 周 围 则 安 装 多 一 层 隔 音 墙 。 在 中 央 高 速 公 路 朝 市 区 方 向 的 工 地 出 入 口 , 新 能 源 还 增 设 了 一 条 300 米 临 时 车 道 , 用 钢 架 在 原 有 的 一 条 水 沟 上 铺 设 铁 板 路 供 重 型 车 辆 出 入 , 而 且 要 求 司 机 避 开 早 晚 上 下 班 高 峰 时 段 , 以 免 加 剧 高 速 公 路 交 通 拥 挤 的 情 况 , 每 天 进 出 的 车 辆 数 目 也 限 制 在 30 辆 。 有 了 临 时 车 道 后 , 重 型 车 辆 就 不 需 进 入 梅 路 , 减 少 噪 音 和 对 居 民 的 不 便 。 同 样 的 , 在 泛 岛 高 速 公 路 朝 明 地 迷 亚 (Bendemeer) 方 向 、 位 于 芽 笼 巴 鲁 (Geylang Bahru) 的 工 地 也 设 立 临 时 车 道 , 重 型 车 辆 不 需 驶 入 芽 笼 巴 鲁 巷 (Geylang Bahru Lane)。 两 条 临 时 车 道 今 年 上 半 年 完 成 , 共 耗 资 400 万 元 。 住 在 中 央 高 速 公 路 工 地 对 面 的 李 起 英 (64 岁 , 家 庭 主 妇 ) 的 外 孙 在 宏 文 学 校 念 三 年 级 。 她 说 , 这 些 安 全 措 施 让 她 很 放 心 。 虽 然 刚 开 始 施 工 时 工 地 有 些 吵 , 但 现 在 已 经 安 静 许 多 , 只 是 有 灰 尘 , 需 要 每 天 抹 地 。 新 能 源 正 在 建 造 的 东 西 和 南 北 两 条 电 缆 隧 道 共 长 35 公 里 , 预 计 2018 年 建 成 , 一 部 分 隧 道 可 深 入 地 下 60 多 米 , 隧 道 直 径 6 米 , 沿 途 有 18 个 工 地 。 隧 道 建 成 后 , 新 能 源 就 能 避 免 开 挖 地 面 来 更 换 或 维 修 电 缆 , 也 能 满 足 日 后 的 供 电 需 求 。 [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20140724] Lianhe Zaobao - Reduced Noise At Cable Tunnel Worksites For Residents Living Nearbyhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/e89eb651-2e6f-4a76-bb79-89333e852f90/%5B20140724%5D+Lianhe+Zaobao+-+Reduced+Noise+At+Cable+Tunnel+Worksites+For+Residents+Living+Nearby.pdf?MOD=AJPERES&CVID= 卡 车 改 道 又 设 隔 音 墙 电 缆 隧 道 工 程 “ 静 音 ” 减 民 扰 发 展 商 在 东 西 和 南 北 两 条 电 缆 隧 道 施 工 处 采 取 了 多 项 亲 邻 措 施 , 包 括 增 设 临 时 车 道 、 限 制 每 日 进 出 的 车 辆 数 目 等 。 由 于 工 地 紧 挨 学 校 , 承 包 商 每 天 还 派 人 指 挥 交 通 , 确 保 下 课 学 生 安 全 过 马 路 。 杨 萌 报 道 yangmeng@sph.com.sg 中 央 高 速 公 路 在 马 里 士 他 路 出 口 处 前 有 个 巨 型 工 地 , 虽 然 已 经 施 工 一 年 半 , 工 地 看 起 来 却 相 当 安 静 。 这 里 是 本 地 最 深 地 底 电 缆 隧 道 工 程 南 北 和 东 西 线 路 的 交 汇 点 。 为 确 保 工 程 不 影 响 居 民 和 学 生 作 息 , 发 展 商 新 加 坡 能 源 和 负 责 该 段 工 程 主 要 承 包 商 SK 建 筑 及 工 程 公 司 采 取 了 不 少 亲 邻 措 施 , 包 括 筑 起 一 道 新 加 坡 能 源 在 中 央 高 速 公 路 靠 近 马 里 士 他 路 出 口 处 特 设 一 条 临 时 车 道 让 重 型 车 辆 进 入 , 这 样 车 辆 就 无 需 进 入 梅 路 的 组 屋 区 , 可 确 保 居 民 和 学 生 的 安 全 。( 新 能 源 提 供 ) 9 米 高 的 隔 音 墙 。 这 个 面 积 超 过 2000 平 方 米 的 工 地 有 两 个 出 入 口 , 一 个 在 中 央 高 速 公 路 , 一 个 在 梅 路 (May Road)。 梅 路 这 边 的 工 地 紧 挨 宏 文 学 校 , 承 包 商 每 天 下 午 放 学 时 间 都 会 派 人 充 当 交 通 指 挥 员 , 并 竖 起 障 碍 物 避 免 学 生 乱 过 马 路 。 宏 文 学 校 有 1000 多 名 学 生 , 工 地 附 近 则 有 至 少 900 户 居 民 。 黄 埔 麦 奈 雅 路 (Whampoa McNair) 居 民 委 员 会 主 席 黄 业 强 说 , 应 居 委 会 要 求 , 承 包 商 在 下 午 学 生 放 学 时 段 停 工 , 供 应 商 也 避 免 在 这 个 时 段 送 货 。 他 说 :“ 居 委 会 、 发 展 商 和 承 包 商 的 职 员 还 挨 家 挨 户 走 访 了 附 近 居 民 , 通 知 他 们 施 工 进 展 并 听 取 建 议 。” 施 工 一 年 半 接 投 诉 少 过 15 起 目 前 , 居 委 会 收 到 少 过 15 起 居 民 投 诉 , 曾 有 一 名 住 在 梅 路 的 居 民 反 映 工 地 有 噪 音 和 灰 尘 , 承 包 商 就 在 面 向 她 住 家 的 工 地 大 门 旁 挂 起 隔 音 布 。 该 工 地 在 2012 年 底 开 始 施 工 , 初 期 是 挖 掘 竖 井 (shaft), 目 前 已 进 入 钻 隧 道 阶 段 。 这 一 段 的 隧 道 在 地 底 58 米 处 , 无 需 爆 破 , 因 此 噪 音 低 , 一 些 比 较 会 制 造 噪 音 的 机 器 周 围 则 安 装 多 一 层 隔 音 墙 。 在 中 央 高 速 公 路 朝 市 区 方 向 的 工 地 出 入 口 , 新 能 源 还 增 设 了 一 条 300 米 临 时 车 道 , 用 钢 架 在 原 有 的 一 条 水 沟 上 铺 设 铁 板 路 供 重 型 车 辆 出 入 , 而 且 要 求 司 机 避 开 早 晚 上 下 班 高 峰 时 段 , 以 免 加 剧 高 速 公 路 交 通 拥 挤 的 情 况 , 每 天 进 出 的 车 辆 数 目 也 限 制 在 30 辆 。 有 了 临 时 车 道 后 , 重 型 车 辆 就 不 需 进 入 梅 路 , 减 少 噪 音 和 对 居 民 的 不 便 。 同 样 的 , 在 泛 岛 高 速 公 路 朝 明 地 迷 亚 (Bendemeer) 方 向 、 位 于 芽 笼 巴 鲁 (Geylang Bahru) 的 工 地 也 设 立 临 时 车 道 , 重 型 车 辆 不 需 驶 入 芽 笼 巴 鲁 巷 (Geylang Bahru Lane)。 两 条 临 时 车 道 今 年 上 半 年 完 成 , 共 耗 资 400 万 元 。 住 在 中 央 高 速 公 路 工 地 对 面 的 李 起 英 (64 岁 , 家 庭 主 妇 ) 的 外 孙 在 宏 文 学 校 念 三 年 级 。 她 说 , 这 些 安 全 措 施 让 她 很 放 心 。 虽 然 刚 开 始 施 工 时 工 地 有 些 吵 , 但 现 在 已 经 安 静 许 多 , 只 是 有 灰 尘 , 需 要 每 天 抹 地 。 新 能 源 正 在 建 造 的 东 西 和 南 北 两 条 电 缆 隧 道 共 长 35 公 里 , 预 计 2018 年 建 成 , 一 部 分 隧 道 可 深 入 地 下 60 多 米 , 隧 道 直 径 6 米 , 沿 途 有 18 个 工 地 。 隧 道 建 成 后 , 新 能 源 就 能 避 免 开 挖 地 面 来 更 换 或 维 修 电 缆 , 也 能 满 足 日 后 的 供 电 需 求 。 Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20140724] Lianhe Zaobao - Reduced Noise At Cable Tunnel Worksites For Residents Living Nearbyhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/e89eb651-2e6f-4a76-bb79-89333e852f90/%5B20140724%5D+Lianhe+Zaobao+-+Reduced+Noise+At+Cable+Tunnel+Worksites+For+Residents+Living+Nearby.pdf?MOD=AJPERES&CVID= 卡 车 改 道 又 设 隔 音 墙 电 缆 隧 道 工 程 “ 静 音 ” 减 民 扰 发 展 商 在 东 西 和 南 北 两 条 电 缆 隧 道 施 工 处 采 取 了 多 项 亲 邻 措 施 , 包 括 增 设 临 时 车 道 、 限 制 每 日 进 出 的 车 辆 数 目 等 。 由 于 工 地 紧 挨 学 校 , 承 包 商 每 天 还 派 人 指 挥 交 通 , 确 保 下 课 学 生 安 全 过 马 路 。 杨 萌 报 道 yangmeng@sph.com.sg 中 央 高 速 公 路 在 马 里 士 他 路 出 口 处 前 有 个 巨 型 工 地 , 虽 然 已 经 施 工 一 年 半 , 工 地 看 起 来 却 相 当 安 静 。 这 里 是 本 地 最 深 地 底 电 缆 隧 道 工 程 南 北 和 东 西 线 路 的 交 汇 点 。 为 确 保 工 程 不 影 响 居 民 和 学 生 作 息 , 发 展 商 新 加 坡 能 源 和 负 责 该 段 工 程 主 要 承 包 商 SK 建 筑 及 工 程 公 司 采 取 了 不 少 亲 邻 措 施 , 包 括 筑 起 一 道 新 加 坡 能 源 在 中 央 高 速 公 路 靠 近 马 里 士 他 路 出 口 处 特 设 一 条 临 时 车 道 让 重 型 车 辆 进 入 , 这 样 车 辆 就 无 需 进 入 梅 路 的 组 屋 区 , 可 确 保 居 民 和 学 生 的 安 全 。( 新 能 源 提 供 ) 9 米 高 的 隔 音 墙 。 这 个 面 积 超 过 2000 平 方 米 的 工 地 有 两 个 出 入 口 , 一 个 在 中 央 高 速 公 路 , 一 个 在 梅 路 (May Road)。 梅 路 这 边 的 工 地 紧 挨 宏 文 学 校 , 承 包 商 每 天 下 午 放 学 时 间 都 会 派 人 充 当 交 通 指 挥 员 , 并 竖 起 障 碍 物 避 免 学 生 乱 过 马 路 。 宏 文 学 校 有 1000 多 名 学 生 , 工 地 附 近 则 有 至 少 900 户 居 民 。 黄 埔 麦 奈 雅 路 (Whampoa McNair) 居 民 委 员 会 主 席 黄 业 强 说 , 应 居 委 会 要 求 , 承 包 商 在 下 午 学 生 放 学 时 段 停 工 , 供 应 商 也 避 免 在 这 个 时 段 送 货 。 他 说 :“ 居 委 会 、 发 展 商 和 承 包 商 的 职 员 还 挨 家 挨 户 走 访 了 附 近 居 民 , 通 知 他 们 施 工 进 展 并 听 取 建 议 。” 施 工 一 年 半 接 投 诉 少 过 15 起 目 前 , 居 委 会 收 到 少 过 15 起 居 民 投 诉 , 曾 有 一 名 住 在 梅 路 的 居 民 反 映 工 地 有 噪 音 和 灰 尘 , 承 包 商 就 在 面 向 她 住 家 的 工 地 大 门 旁 挂 起 隔 音 布 。 该 工 地 在 2012 年 底 开 始 施 工 , 初 期 是 挖 掘 竖 井 (shaft), 目 前 已 进 入 钻 隧 道 阶 段 。 这 一 段 的 隧 道 在 地 底 58 米 处 , 无 需 爆 破 , 因 此 噪 音 低 , 一 些 比 较 会 制 造 噪 音 的 机 器 周 围 则 安 装 多 一 层 隔 音 墙 。 在 中 央 高 速 公 路 朝 市 区 方 向 的 工 地 出 入 口 , 新 能 源 还 增 设 了 一 条 300 米 临 时 车 道 , 用 钢 架 在 原 有 的 一 条 水 沟 上 铺 设 铁 板 路 供 重 型 车 辆 出 入 , 而 且 要 求 司 机 避 开 早 晚 上 下 班 高 峰 时 段 , 以 免 加 剧 高 速 公 路 交 通 拥 挤 的 情 况 , 每 天 进 出 的 车 辆 数 目 也 限 制 在 30 辆 。 有 了 临 时 车 道 后 , 重 型 车 辆 就 不 需 进 入 梅 路 , 减 少 噪 音 和 对 居 民 的 不 便 。 同 样 的 , 在 泛 岛 高 速 公 路 朝 明 地 迷 亚 (Bendemeer) 方 向 、 位 于 芽 笼 巴 鲁 (Geylang Bahru) 的 工 地 也 设 立 临 时 车 道 , 重 型 车 辆 不 需 驶 入 芽 笼 巴 鲁 巷 (Geylang Bahru Lane)。 两 条 临 时 车 道 今 年 上 半 年 完 成 , 共 耗 资 400 万 元 。 住 在 中 央 高 速 公 路 工 地 对 面 的 李 起 英 (64 岁 , 家 庭 主 妇 ) 的 外 孙 在 宏 文 学 校 念 三 年 级 。 她 说 , 这 些 安 全 措 施 让 她 很 放 心 。 虽 然 刚 开 始 施 工 时 工 地 有 些 吵 , 但 现 在 已 经 安 静 许 多 , 只 是 有 灰 尘 , 需 要 每 天 抹 地 。 新 能 源 正 在 建 造 的 东 西 和 南 北 两 条 电 缆 隧 道 共 长 35 公 里 , 预 计 2018 年 建 成 , 一 部 分 隧 道 可 深 入 地 下 60 多 米 , 隧 道 直 径 6 米 , 沿 途 有 18 个 工 地 。 隧 道 建 成 后 , 新 能 源 就 能 避 免 开 挖 地 面 来 更 换 或 维 修 电 缆 , 也 能 满 足 日 后 的 供 电 需 求 。 [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20140724] Lianhe Zaobao - Reduced Noise At Cable Tunnel Worksites For Residents Living Nearbyhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/e89eb651-2e6f-4a76-bb79-89333e852f90/%5B20140724%5D+Lianhe+Zaobao+-+Reduced+Noise+At+Cable+Tunnel+Worksites+For+Residents+Living+Nearby.pdf?MOD=AJPERES&CVID= 卡 车 改 道 又 设 隔 音 墙 电 缆 隧 道 工 程 “ 静 音 ” 减 民 扰 发 展 商 在 东 西 和 南 北 两 条 电 缆 隧 道 施 工 处 采 取 了 多 项 亲 邻 措 施 , 包 括 增 设 临 时 车 道 、 限 制 每 日 进 出 的 车 辆 数 目 等 。 由 于 工 地 紧 挨 学 校 , 承 包 商 每 天 还 派 人 指 挥 交 通 , 确 保 下 课 学 生 安 全 过 马 路 。 杨 萌 报 道 yangmeng@sph.com.sg 中 央 高 速 公 路 在 马 里 士 他 路 出 口 处 前 有 个 巨 型 工 地 , 虽 然 已 经 施 工 一 年 半 , 工 地 看 起 来 却 相 当 安 静 。 这 里 是 本 地 最 深 地 底 电 缆 隧 道 工 程 南 北 和 东 西 线 路 的 交 汇 点 。 为 确 保 工 程 不 影 响 居 民 和 学 生 作 息 , 发 展 商 新 加 坡 能 源 和 负 责 该 段 工 程 主 要 承 包 商 SK 建 筑 及 工 程 公 司 采 取 了 不 少 亲 邻 措 施 , 包 括 筑 起 一 道 新 加 坡 能 源 在 中 央 高 速 公 路 靠 近 马 里 士 他 路 出 口 处 特 设 一 条 临 时 车 道 让 重 型 车 辆 进 入 , 这 样 车 辆 就 无 需 进 入 梅 路 的 组 屋 区 , 可 确 保 居 民 和 学 生 的 安 全 。( 新 能 源 提 供 ) 9 米 高 的 隔 音 墙 。 这 个 面 积 超 过 2000 平 方 米 的 工 地 有 两 个 出 入 口 , 一 个 在 中 央 高 速 公 路 , 一 个 在 梅 路 (May Road)。 梅 路 这 边 的 工 地 紧 挨 宏 文 学 校 , 承 包 商 每 天 下 午 放 学 时 间 都 会 派 人 充 当 交 通 指 挥 员 , 并 竖 起 障 碍 物 避 免 学 生 乱 过 马 路 。 宏 文 学 校 有 1000 多 名 学 生 , 工 地 附 近 则 有 至 少 900 户 居 民 。 黄 埔 麦 奈 雅 路 (Whampoa McNair) 居 民 委 员 会 主 席 黄 业 强 说 , 应 居 委 会 要 求 , 承 包 商 在 下 午 学 生 放 学 时 段 停 工 , 供 应 商 也 避 免 在 这 个 时 段 送 货 。 他 说 :“ 居 委 会 、 发 展 商 和 承 包 商 的 职 员 还 挨 家 挨 户 走 访 了 附 近 居 民 , 通 知 他 们 施 工 进 展 并 听 取 建 议 。” 施 工 一 年 半 接 投 诉 少 过 15 起 目 前 , 居 委 会 收 到 少 过 15 起 居 民 投 诉 , 曾 有 一 名 住 在 梅 路 的 居 民 反 映 工 地 有 噪 音 和 灰 尘 , 承 包 商 就 在 面 向 她 住 家 的 工 地 大 门 旁 挂 起 隔 音 布 。 该 工 地 在 2012 年 底 开 始 施 工 , 初 期 是 挖 掘 竖 井 (shaft), 目 前 已 进 入 钻 隧 道 阶 段 。 这 一 段 的 隧 道 在 地 底 58 米 处 , 无 需 爆 破 , 因 此 噪 音 低 , 一 些 比 较 会 制 造 噪 音 的 机 器 周 围 则 安 装 多 一 层 隔 音 墙 。 在 中 央 高 速 公 路 朝 市 区 方 向 的 工 地 出 入 口 , 新 能 源 还 增 设 了 一 条 300 米 临 时 车 道 , 用 钢 架 在 原 有 的 一 条 水 沟 上 铺 设 铁 板 路 供 重 型 车 辆 出 入 , 而 且 要 求 司 机 避 开 早 晚 上 下 班 高 峰 时 段 , 以 免 加 剧 高 速 公 路 交 通 拥 挤 的 情 况 , 每 天 进 出 的 车 辆 数 目 也 限 制 在 30 辆 。 有 了 临 时 车 道 后 , 重 型 车 辆 就 不 需 进 入 梅 路 , 减 少 噪 音 和 对 居 民 的 不 便 。 同 样 的 , 在 泛 岛 高 速 公 路 朝 明 地 迷 亚 (Bendemeer) 方 向 、 位 于 芽 笼 巴 鲁 (Geylang Bahru) 的 工 地 也 设 立 临 时 车 道 , 重 型 车 辆 不 需 驶 入 芽 笼 巴 鲁 巷 (Geylang Bahru Lane)。 两 条 临 时 车 道 今 年 上 半 年 完 成 , 共 耗 资 400 万 元 。 住 在 中 央 高 速 公 路 工 地 对 面 的 李 起 英 (64 岁 , 家 庭 主 妇 ) 的 外 孙 在 宏 文 学 校 念 三 年 级 。 她 说 , 这 些 安 全 措 施 让 她 很 放 心 。 虽 然 刚 开 始 施 工 时 工 地 有 些 吵 , 但 现 在 已 经 安 静 许 多 , 只 是 有 灰 尘 , 需 要 每 天 抹 地 。 新 能 源 正 在 建 造 的 东 西 和 南 北 两 条 电 缆 隧 道 共 长 35 公 里 , 预 计 2018 年 建 成 , 一 部 分 隧 道 可 深 入 地 下 60 多 米 , 隧 道 直 径 6 米 , 沿 途 有 18 个 工 地 。 隧 道 建 成 后 , 新 能 源 就 能 避 免 开 挖 地 面 来 更 换 或 维 修 电 缆 , 也 能 满 足 日 后 的 供 电 需 求 。 [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20140724] Lianhe Zaobao - Reduced Noise At Cable Tunnel Worksites For Residents Living Nearbyhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/e89eb651-2e6f-4a76-bb79-89333e852f90/%5B20140724%5D+Lianhe+Zaobao+-+Reduced+Noise+At+Cable+Tunnel+Worksites+For+Residents+Living+Nearby.pdf?MOD=AJPERES&CVID= 卡 车 改 道 又 设 隔 音 墙 电 缆 隧 道 工 程 “ 静 音 ” 减 民 扰 发 展 商 在 东 西 和 南 北 两 条 电 缆 隧 道 施 工 处 采 取 了 多 项 亲 邻 措 施 , 包 括 增 设 临 时 车 道 、 限 制 每 日 进 出 的 车 辆 数 目 等 。 由 于 工 地 紧 挨 学 校 , 承 包 商 每 天 还 派 人 指 挥 交 通 , 确 保 下 课 学 生 安 全 过 马 路 。 杨 萌 报 道 yangmeng@sph.com.sg 中 央 高 速 公 路 在 马 里 士 他 路 出 口 处 前 有 个 巨 型 工 地 , 虽 然 已 经 施 工 一 年 半 , 工 地 看 起 来 却 相 当 安 静 。 这 里 是 本 地 最 深 地 底 电 缆 隧 道 工 程 南 北 和 东 西 线 路 的 交 汇 点 。 为 确 保 工 程 不 影 响 居 民 和 学 生 作 息 , 发 展 商 新 加 坡 能 源 和 负 责 该 段 工 程 主 要 承 包 商 SK 建 筑 及 工 程 公 司 采 取 了 不 少 亲 邻 措 施 , 包 括 筑 起 一 道 新 加 坡 能 源 在 中 央 高 速 公 路 靠 近 马 里 士 他 路 出 口 处 特 设 一 条 临 时 车 道 让 重 型 车 辆 进 入 , 这 样 车 辆 就 无 需 进 入 梅 路 的 组 屋 区 , 可 确 保 居 民 和 学 生 的 安 全 。( 新 能 源 提 供 ) 9 米 高 的 隔 音 墙 。 这 个 面 积 超 过 2000 平 方 米 的 工 地 有 两 个 出 入 口 , 一 个 在 中 央 高 速 公 路 , 一 个 在 梅 路 (May Road)。 梅 路 这 边 的 工 地 紧 挨 宏 文 学 校 , 承 包 商 每 天 下 午 放 学 时 间 都 会 派 人 充 当 交 通 指 挥 员 , 并 竖 起 障 碍 物 避 免 学 生 乱 过 马 路 。 宏 文 学 校 有 1000 多 名 学 生 , 工 地 附 近 则 有 至 少 900 户 居 民 。 黄 埔 麦 奈 雅 路 (Whampoa McNair) 居 民 委 员 会 主 席 黄 业 强 说 , 应 居 委 会 要 求 , 承 包 商 在 下 午 学 生 放 学 时 段 停 工 , 供 应 商 也 避 免 在 这 个 时 段 送 货 。 他 说 :“ 居 委 会 、 发 展 商 和 承 包 商 的 职 员 还 挨 家 挨 户 走 访 了 附 近 居 民 , 通 知 他 们 施 工 进 展 并 听 取 建 议 。” 施 工 一 年 半 接 投 诉 少 过 15 起 目 前 , 居 委 会 收 到 少 过 15 起 居 民 投 诉 , 曾 有 一 名 住 在 梅 路 的 居 民 反 映 工 地 有 噪 音 和 灰 尘 , 承 包 商 就 在 面 向 她 住 家 的 工 地 大 门 旁 挂 起 隔 音 布 。 该 工 地 在 2012 年 底 开 始 施 工 , 初 期 是 挖 掘 竖 井 (shaft), 目 前 已 进 入 钻 隧 道 阶 段 。 这 一 段 的 隧 道 在 地 底 58 米 处 , 无 需 爆 破 , 因 此 噪 音 低 , 一 些 比 较 会 制 造 噪 音 的 机 器 周 围 则 安 装 多 一 层 隔 音 墙 。 在 中 央 高 速 公 路 朝 市 区 方 向 的 工 地 出 入 口 , 新 能 源 还 增 设 了 一 条 300 米 临 时 车 道 , 用 钢 架 在 原 有 的 一 条 水 沟 上 铺 设 铁 板 路 供 重 型 车 辆 出 入 , 而 且 要 求 司 机 避 开 早 晚 上 下 班 高 峰 时 段 , 以 免 加 剧 高 速 公 路 交 通 拥 挤 的 情 况 , 每 天 进 出 的 车 辆 数 目 也 限 制 在 30 辆 。 有 了 临 时 车 道 后 , 重 型 车 辆 就 不 需 进 入 梅 路 , 减 少 噪 音 和 对 居 民 的 不 便 。 同 样 的 , 在 泛 岛 高 速 公 路 朝 明 地 迷 亚 (Bendemeer) 方 向 、 位 于 芽 笼 巴 鲁 (Geylang Bahru) 的 工 地 也 设 立 临 时 车 道 , 重 型 车 辆 不 需 驶 入 芽 笼 巴 鲁 巷 (Geylang Bahru Lane)。 两 条 临 时 车 道 今 年 上 半 年 完 成 , 共 耗 资 400 万 元 。 住 在 中 央 高 速 公 路 工 地 对 面 的 李 起 英 (64 岁 , 家 庭 主 妇 ) 的 外 孙 在 宏 文 学 校 念 三 年 级 。 她 说 , 这 些 安 全 措 施 让 她 很 放 心 。 虽 然 刚 开 始 施 工 时 工 地 有 些 吵 , 但 现 在 已 经 安 静 许 多 , 只 是 有 灰 尘 , 需 要 每 天 抹 地 。 新 能 源 正 在 建 造 的 东 西 和 南 北 两 条 电 缆 隧 道 共 长 35 公 里 , 预 计 2018 年 建 成 , 一 部 分 隧 道 可 深 入 地 下 60 多 米 , 隧 道 直 径 6 米 , 沿 途 有 18 个 工 地 。 隧 道 建 成 后 , 新 能 源 就 能 避 免 开 挖 地 面 来 更 换 或 维 修 电 缆 , 也 能 满 足 日 后 的 供 电 需 求 。 [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20140724] Lianhe Zaobao - Reduced Noise At Cable Tunnel Worksites For Residents Living Nearbyhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/e89eb651-2e6f-4a76-bb79-89333e852f90/%5B20140724%5D+Lianhe+Zaobao+-+Reduced+Noise+At+Cable+Tunnel+Worksites+For+Residents+Living+Nearby.pdf?MOD=AJPERES&CVID= 卡 车 改 道 又 设 隔 音 墙 电 缆 隧 道 工 程 “ 静 音 ” 减 民 扰 发 展 商 在 东 西 和 南 北 两 条 电 缆 隧 道 施 工 处 采 取 了 多 项 亲 邻 措 施 , 包 括 增 设 临 时 车 道 、 限 制 每 日 进 出 的 车 辆 数 目 等 。 由 于 工 地 紧 挨 学 校 , 承 包 商 每 天 还 派 人 指 挥 交 通 , 确 保 下 课 学 生 安 全 过 马 路 。 杨 萌 报 道 yangmeng@sph.com.sg 中 央 高 速 公 路 在 马 里 士 他 路 出 口 处 前 有 个 巨 型 工 地 , 虽 然 已 经 施 工 一 年 半 , 工 地 看 起 来 却 相 当 安 静 。 这 里 是 本 地 最 深 地 底 电 缆 隧 道 工 程 南 北 和 东 西 线 路 的 交 汇 点 。 为 确 保 工 程 不 影 响 居 民 和 学 生 作 息 , 发 展 商 新 加 坡 能 源 和 负 责 该 段 工 程 主 要 承 包 商 SK 建 筑 及 工 程 公 司 采 取 了 不 少 亲 邻 措 施 , 包 括 筑 起 一 道 新 加 坡 能 源 在 中 央 高 速 公 路 靠 近 马 里 士 他 路 出 口 处 特 设 一 条 临 时 车 道 让 重 型 车 辆 进 入 , 这 样 车 辆 就 无 需 进 入 梅 路 的 组 屋 区 , 可 确 保 居 民 和 学 生 的 安 全 。( 新 能 源 提 供 ) 9 米 高 的 隔 音 墙 。 这 个 面 积 超 过 2000 平 方 米 的 工 地 有 两 个 出 入 口 , 一 个 在 中 央 高 速 公 路 , 一 个 在 梅 路 (May Road)。 梅 路 这 边 的 工 地 紧 挨 宏 文 学 校 , 承 包 商 每 天 下 午 放 学 时 间 都 会 派 人 充 当 交 通 指 挥 员 , 并 竖 起 障 碍 物 避 免 学 生 乱 过 马 路 。 宏 文 学 校 有 1000 多 名 学 生 , 工 地 附 近 则 有 至 少 900 户 居 民 。 黄 埔 麦 奈 雅 路 (Whampoa McNair) 居 民 委 员 会 主 席 黄 业 强 说 , 应 居 委 会 要 求 , 承 包 商 在 下 午 学 生 放 学 时 段 停 工 , 供 应 商 也 避 免 在 这 个 时 段 送 货 。 他 说 :“ 居 委 会 、 发 展 商 和 承 包 商 的 职 员 还 挨 家 挨 户 走 访 了 附 近 居 民 , 通 知 他 们 施 工 进 展 并 听 取 建 议 。” 施 工 一 年 半 接 投 诉 少 过 15 起 目 前 , 居 委 会 收 到 少 过 15 起 居 民 投 诉 , 曾 有 一 名 住 在 梅 路 的 居 民 反 映 工 地 有 噪 音 和 灰 尘 , 承 包 商 就 在 面 向 她 住 家 的 工 地 大 门 旁 挂 起 隔 音 布 。 该 工 地 在 2012 年 底 开 始 施 工 , 初 期 是 挖 掘 竖 井 (shaft), 目 前 已 进 入 钻 隧 道 阶 段 。 这 一 段 的 隧 道 在 地 底 58 米 处 , 无 需 爆 破 , 因 此 噪 音 低 , 一 些 比 较 会 制 造 噪 音 的 机 器 周 围 则 安 装 多 一 层 隔 音 墙 。 在 中 央 高 速 公 路 朝 市 区 方 向 的 工 地 出 入 口 , 新 能 源 还 增 设 了 一 条 300 米 临 时 车 道 , 用 钢 架 在 原 有 的 一 条 水 沟 上 铺 设 铁 板 路 供 重 型 车 辆 出 入 , 而 且 要 求 司 机 避 开 早 晚 上 下 班 高 峰 时 段 , 以 免 加 剧 高 速 公 路 交 通 拥 挤 的 情 况 , 每 天 进 出 的 车 辆 数 目 也 限 制 在 30 辆 。 有 了 临 时 车 道 后 , 重 型 车 辆 就 不 需 进 入 梅 路 , 减 少 噪 音 和 对 居 民 的 不 便 。 同 样 的 , 在 泛 岛 高 速 公 路 朝 明 地 迷 亚 (Bendemeer) 方 向 、 位 于 芽 笼 巴 鲁 (Geylang Bahru) 的 工 地 也 设 立 临 时 车 道 , 重 型 车 辆 不 需 驶 入 芽 笼 巴 鲁 巷 (Geylang Bahru Lane)。 两 条 临 时 车 道 今 年 上 半 年 完 成 , 共 耗 资 400 万 元 。 住 在 中 央 高 速 公 路 工 地 对 面 的 李 起 英 (64 岁 , 家 庭 主 妇 ) 的 外 孙 在 宏 文 学 校 念 三 年 级 。 她 说 , 这 些 安 全 措 施 让 她 很 放 心 。 虽 然 刚 开 始 施 工 时 工 地 有 些 吵 , 但 现 在 已 经 安 静 许 多 , 只 是 有 灰 尘 , 需 要 每 天 抹 地 。 新 能 源 正 在 建 造 的 东 西 和 南 北 两 条 电 缆 隧 道 共 长 35 公 里 , 预 计 2018 年 建 成 , 一 部 分 隧 道 可 深 入 地 下 60 多 米 , 隧 道 直 径 6 米 , 沿 途 有 18 个 工 地 。 隧 道 建 成 后 , 新 能 源 就 能 避 免 开 挖 地 面 来 更 换 或 维 修 电 缆 , 也 能 满 足 日 后 的 供 电 需 求 。 [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20171220] The Straits Times - Robots on the lookout for water leaks and fireshttps://www.spgroup.com.sg/dam/jcr:50c934fd-03ee-429e-8eaf-5d212a35055e A6 TOPOF THENEWS | THE STRAITS TIMES | WEDNESDAY, DECEMBER 20, 2017 | Singapore’s deepest tunnel system The Underground Transmission Cable Tunnel Project will safeguard Singapore’s electricity supply network for the future. It will begin operations by the end of next year. ST illustrates the key points of this $2.4 billion engineering feat. UNDERGROUND TUNNELS 3m Sewage and current power grids 12m Underpass and malls Robots on the lookout for water leaks and fires 1.7m 6m Automatic inspection vehicle 60m SP Group electricity cable tunnels 8-25m Underground expressways 30m MRT tunnels 20-55m Deep tunnel sewerage system 60m Height of a 20-storey HDB block WHERE THE NEW TUNNELS LIE Existing power circuits to be renewed Gambas Woodlands Avenue 8 Ayer Rajah Senoko Cable renewal routes Kallang Basin Tampines Paya Lebar 400kV substation Automatic inspection vehicles will be traversing the length of the 40km tunnels Jose Hong Singapore’s new electricity supply tunnels have the latest high-tech sensors to detect water seepage, fires and infiltration that could harm the electricity network. Robots, or automatic inspection vehicles (AIVs), traversing the length of the 40km tunnels, will look out for changes in the colour of the concrete walls, a warning sign for water leaks. Mr Michael Chin, managing director of infrastructure and projects at energy utility company SP Group, said yesterday that water leaks are the most common problem in tunnels, and AIVs can detect concrete patches that suddenly turn a different colour. He said the AIVs will also eventually be able to detect fires using infrared cameras. Each of the three tunnels also has a firefighting system that uses a superior “water mist system”, instead of sprinklers, said Mr Chin. He explained that the system shoots very fine water mist which evaporates faster and removes heat quickly from fire. The water mist also displaces air and suffocates the flames. Smoke particles will dissolve into the fine water droplets and sink, leaving a fine mist and making it safe for firefighters to enter the tunnel to put out the fire, said Mr Chin. The system also sends an alarm signal to the Singapore Civil Defence Force. Another set of sensors in the tunnels can detect pollutants and abnormal concentrations of gases. Most parts of the multibillion-dollar Underground Transmission Cable Tunnel Project are about 60m beneath the earth, but some will be at 80m, making the electricity project one of the world’s deepest. The tunnels – named the North-South, East-West and Jurong Island-Pioneer tunnels – will be able to house 1,200km of extra-high-voltage cables. Singaporeans will begin tapping this source from next year, said SP Group yesterday. About 500km of cables will be laid, which is less than half the capacity of the tunnels. There will be 17 equipment buildings spanning the 40km network, and each of them will have two electric bicycles to allow staff to quickly move to parts of the tunnels that require attention. Mr Chin said that anyone trying to enter the tunnels will need to break through three layers of security at the equipment buildings. “All these systems protect the cables and the people working in the tunnel and so, in the long run, maintain the reliability of the system,” he said. josehong@sph.com.sg SCAN TO WATCH A walk through the underground tunnels. http://str.sg/ tunnels West Jurong Island 400kV substation Ayer Rajah 400kV substation Rangoon 400kV substation FACTS AND FIGURES 3 21 tunnels shafts long 60-80m deep 40km tunnel High-tech protection There are only 17 entry points to the tunnel, and each of them has three levels of security and surveillance cameras. The tunnels also have systems that protect against fire and water seepage. Long-term planning There is space to lay 1,200km of cables in the tunnels – more than thrice the distance between Singapore and Kuala Lumpur. However, by 2022, SP Group will lay only around 500km of cables, leaving plenty of space for expansion. Long-lasting supply The tunnels are built to last 120 years. This refers to the concrete segments and the structural reinforcements. Source: SP GROUP PHOTOS: ZAOBAO, HDB STRAITS TIMES GRAPHICS A prototype of the automatic inspection vehicle that will be used to detect water seepage and fires in the tunnel system. PHOTO: LIANHE ZAOBAO Tunnel system replaces ageing network of the 1980s Eight circuits of the power cable network, which were built in the 1980s, will soon become too old to maintain and will be left in place while being gradually replaced with the new tunnel system. These cables were installed just below roads, and repairs and replacement work would cause traffic jams and increase the risk of accidents – problems that the new underground tunnel network will avoid, said SP Group managing director of infrastructure and projects Michael Chin. He added that the existing cables are so old that they need to be inspected once every three months, which adds to maintenance costs. Singapore’s land scarcity means that SP Group had “no choice” but to build the tunnel system 60m below ground, said Mr Chin. He said that the 60m-deep tunnels mean that cable checks will not disrupt ground-level life. Reflecting long-term planning, Mr Chin said the 40km tunnel project is designed to last 120 years. This refers to the concrete segments and the structural reinforcements. However, he said that there is no knowing what will happen once the system ends. “I will not be around and you will not be around,” he chuckled, adding that Singapore could end up with a completely different system of transmitting electricity. Jose Hong Searchhttps://www.spgroup.com.sg/search?tag=cable-tunnel Search [20131212] The Business Times - SP Building Undersea Transmission Cable Tunnelhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7c753c01-2182-47cb-a685-db14138de939/%5B20131212%5D+The+Business+Times+-+SP+Building+Undersea+Transmission+Cable+Tunnel.pdf?MOD=AJPERES&CVID= SP building undersea transmission cable tunnel It will connect Jurong Island to the mainland By RONNIE LIM ronnie@sph.com.sg ONE year after starting construction of Singapore’s $2 billion next-generation power network, Singapore Power (SP) is now following up by building a crucial new undersea transmission cable tunnel connecting Jurong Island (JI) to the mainland to export electricity from new power plants there. Penta-Ocean Construction, which was awarded the latest contract in October, started work last month on the 5.2 km JI-Pioneer (Road) cable tunnel under the West Jurong Channel, Singapore Power disclosed in its just-released 2012/13 annual report. No project cost was mentioned because of contractual reasons. “Cost-wise, it is a fraction of the $2 billion mainland tunnel project. But the undersea tunnel is not a small project, and it is also more challenging as it goes deeper,” said SP’s CEO, Wong Kim Yin, in an interview. Expected to be around 45 metres to 80 metres deep, the undersea cable tunnel is “planned in conjunction with the (next-generation) 400kV West Jurong Island substation and will accommodate up to 10 circuits” from JI to the mainland, SP added. It will also house Singapore’s next-generation 400 kV transmission cables (replacing current 230kV ones) which have greater capacity to handle the volume of electricity being generated and transmitted here. SP had earlier carried out both preliminary and detailed soil investigations, as the tunnel will be built through Jurong sedimentary formation. The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings by gencos including Keppel Merlimau Cogen, Sembcorp Cogen, Tuas Power’s multi-utilities complex and newcomer PacificLight Power. “By 2019, transmission load in south-western Singapore is expected to increase by 62.5 per cent,” SP said, explaining the need to expand the transmission cable network in that area, which includes Jurong Island and Tuas (where the new port will also be built). Timing-wise, it will also tie in with the expected completion of the mega $2 billion cross-island tunnel The undersea cable tunnel is scheduled for completion by 2018, in time to handle the substantial increase in transmission load from JI, which is seeing new plantings. project on the mainland. Comprising two ultra-deep, extra-high voltage power transmission tunnels running 16.5 km east-west and 18.5 km north-south, the tunnels are expected to be completed in Q2, 2017 and Q2, 2018 respectively. Tunnelling proper of the two is set to start early next year, following the completion of the upper and lower access shafts this year. In its annual report, SP said that it is leveraging cutting-edge technology and investing in network infrastructure to support key industries and economic and social developments. For instance, it said that to cater for future growth and development of petrochemical industries on JI, development of Tembusu 230kV and 400kV West Jurong Island substations is progressing. Rangoon 400kV substation is also set to be completed by this year-end to cater to power demand growth in central Singapore. On the gas front, subsidiary PowerGas also supported the start-up of the Singapore LNG terminal in May this year by laying pipelines connecting SLNG to new transmission customers. [20140724] Lianhe Zaobao - Reduced Noise At Cable Tunnel Worksites For Residents Living Nearbyhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/e89eb651-2e6f-4a76-bb79-89333e852f90/%5B20140724%5D+Lianhe+Zaobao+-+Reduced+Noise+At+Cable+Tunnel+Worksites+For+Residents+Living+Nearby.pdf?MOD=AJPERES&CVID= 卡 车 改 道 又 设 隔 音 墙 电 缆 隧 道 工 程 “ 静 音 ” 减 民 扰 发 展 商 在 东 西 和 南 北 两 条 电 缆 隧 道 施 工 处 采 取 了 多 项 亲 邻 措 施 , 包 括 增 设 临 时 车 道 、 限 制 每 日 进 出 的 车 辆 数 目 等 。 由 于 工 地 紧 挨 学 校 , 承 包 商 每 天 还 派 人 指 挥 交 通 , 确 保 下 课 学 生 安 全 过 马 路 。 杨 萌 报 道 yangmeng@sph.com.sg 中 央 高 速 公 路 在 马 里 士 他 路 出 口 处 前 有 个 巨 型 工 地 , 虽 然 已 经 施 工 一 年 半 , 工 地 看 起 来 却 相 当 安 静 。 这 里 是 本 地 最 深 地 底 电 缆 隧 道 工 程 南 北 和 东

Particulars of Electrical Installation FORM CERTIFICATE OF COMPLIANCE Name of Consumer: _______________________________________________________________ Address of Installation: _____________________________________________________________ _____________________________________________________________________________ Electrical Installation Licence No.: ____________________ MSS Account No.: ___________________ Approved load & Supply Voltage: ___________________ kW ___________________ Volts Generator(s) Installed: Operated in parallel with PowerGrid’s network No. of Generator(s): ________ Rating: _________kVA Standby Generator No. of Generator(s): ________ Rating: _________kVA Not Applicable Electrical Installation Design Certification I certify that the design of the above-mentioned electrical installation complies with the requirements of the Electricity (Electrical Installations) Regulations 2002 and the relevant Singapore Standard Code of Practice. With the certification of compliance by the LEW responsible for the installation work as shown below, I hereby request for the energisation of the supply line to the said electrical installation on _________________ (date). ___________ __________ Name & Signature of LEW responsible Licence No. Date for design of electrical installation* Electrical Installation Inspection Certification I have supervised the work of the above-mentioned electrical installation and hereby certify that the electrical installation complies with the requirements of the Electricity (Electrical Installations) Regulations 2002 and the relevant Singapore Standard Code of Practice. I further certify that the technical requirements as stipulated by the person responsible for turning on the switchgear which controls the supply of electricity to the said electrical installation have been complied with. ___________ __________ Name & Signature of LEW responsible Licence No. Date for electrical installation work* *The same LEW may perform both design and installation work for the electrical installation. Copy to: Market Support Services Licensee REF: E(EI)Reg5(2)

Suntec City to Join SP’s Marina Bay district cooling network, the world's largest underground district cooling system SUSTAINABILITY (From left) Mr Chong Kee Hiong, Council Chairman, The MCST Plan No. 2197; Mr Raymond Ong, Council Member, The MCST Plan No. 2197; Mr S. Harsha, Managing Director of Sustainable Energy Solutions (Singapore); and Mr Stanley Huang, Group Chief Executive Officer, SP Group Suntec City will be the latest development to be connected to SP Group’s Marina Bay district cooling network, expanding what is already the world's largest underground district cooling network. This will enable Suntec City to reduce its carbon emissions by at least 10,400 tonnes over the 30-year operating period, akin to removing more than 315 cars from our roads annually. The expansion of SP’s network will create opportunities to deliver energy efficient cooling to a wider range of developments in the area, including Marina Centre and Bugis. Read more: https://www.straitstimes.com/business/suntec-city-to-join-marina-bay-district-cooling-network-by-2027 - 29 April 2024 TAGS SUSTAINABILITY YOU MIGHT BE INTERESTED TO READ SP Group expands sustainable energy operations in China with Chongqing Transport Hub project win STMicroelectronics enhances sustainability with chiller cooling system at Toa Payoh SP signs PPA with BASF for rooftop solar deployment

GAS TRANSPORTATION TARIFFS (for Shippers with customers off-taking natural gas at high pressure) (W.E.F. 1 Apr 25) 1 Introduction 1.1 Under the Gas Network Code, PowerGas is the Gas Transporter and is responsible for maintaining the reliability and safety of the gas transportation network in Singapore. PowerGas’ transportation business is regulated by the Energy Market Authority (EMA). The transportation tariffs levied by PowerGas are approved by the EMA. 1.2 PowerGas charges transportation tariffs for the transport of gas through its network. PowerGas’ transportation tariffs are levied on Shippers and not the end-users. End-users’ transportation charges imposed by Shippers are commercial arrangements between both parties. 2 Natural Gas Transmission Tariffs 2.1 There are two gas transmission networks, namely Transmission Network 1 and Transmission Network 2. Transmission Network 1 refers to the natural gas transmission network conveying both piped natural gas and regasified LNG from West Natuna (Indonesia) and the LNG Terminal. Transmission Network 2 is the natural gas transmission network conveying both piped natural gas and regasified LNG from South Sumatra (Indonesia), Attap Valley (Malaysia) and the LNG Terminal. 2.2 Transmission tariffs consist of capacity and usage charges (refer to Section 3 below for details). These charges are applicable to Shippers off-taking gas at high pressure. The same charging structure also applies to Shippers with Small Transmission Customers (i.e. with load less than or equal to 5 bbtud). 3 Transmission Charging Structure 3.1 Shippers book capacity with PowerGas to transport gas from designated injection points to off-take points. Shippers pay entry and exit charges based on their respective booked capacity. In addition, a usage charge is levied on the volume of gas transported. 3.2 Arising from EMA’s notification to the industry dated 21 March 2024, a GSC of 22 cents/mmBtu for PNG Injection Points or GSC of 3 cents/mmBtu for LNG Injection Points is imposed on PNG and LNG gas users respectively with effect from 1 Apr 25 to recover the cost associated with Strategic Capacity (as defined in EMA's Policy Paper issued to the industry dated 30 Sep 2019). The Transporter will collect the GSC from all Shippers as an agent for and on behalf of SLNG. The GSC will be reviewed from time to time as directed by EMA and will be included as an uplift in the usage charge. Details of the transmission charges are shown in Table 1 of the Appendix. 3.3 These transmission charges do not include specific cost items which need to be determined on a case-by-case basis for inclusion into the final transmission charges. 3.4 For Shippers with Small Transmission Customers (i.e. requiring gas at high pressure, but with load of less than or equal to 5 bbtud), the transportation charges as shown in Table 2 of the appendix shall apply. 3.5 Shippers will have to pay Overrun Charges in the event they off-take gas above their booked capacity. These Overrun Charges are necessary to encourage the efficient use of the gas network. There are two types of Overrun Charges: • Authorised Capacity Overrun Charge: If a Shipper applies for additional capacity above the booked capacity (i.e. capacity overrun), the Authorised Capacity Overrun Charge, equivalent to 1.25 times the Transmission Capacity Charge rate, shall be applied on that additional capacity. 2 • Unauthorised Capacity Overrun Charge: If a Shipper does not apply for Authorised Capacity Overrun for utilisation of additional capacity above the booked capacity, it will pay 2 times the Transmission Capacity Charge rate for that additional capacity utilised. 4 Appendix – Table of Charges Transmission Network 1 (locational) Transmission Network 2 (locational) Table 1: Transmission Charges (Exclusive of GST) Entry Capacity Charge per annum ($/MMBtu/hr) Exit Capacity Charge per annum ($/MMBtu/hr/km) Transmission Usage Charge ($/MMBtu) 891.91 57.94 0.0087 1,503.65 (Attap Valley Injection Point) 1,093.61 (Sakra Injection Point) 43.07 0.0132 New Pipeline – utilised 276.51 276.51* 0.0034 New Pipeline – excess 232.31 232.31* 0.0041 GSC for PNG Injection Point N.A. N.A. 0.2200 GSC for LNG Injection Point N.A. N.A. 0.0300 * in $/MMBtu/hr per annum Transmission Network 1 (locational) Table 1a: Transmission Charges (Inclusive of 9% GST) + Entry Capacity Charge per annum ($/MMBtu/hr) Exit Capacity Charge per annum ($/MMBtu/hr/km) Transmission Usage Charge ($/MMBtu) 972.18 63.15 0.0095 Transmission Network 2 (locational) 1,638.98 1,192.03 46.95 0.0144 New Pipeline – utilised 301.40 301.40* 0.0037 New Pipeline – excess 253.22 253.22* 0.0045 GSC for PNG Injection Point N.A. N.A. 0.2398 GSC for LNG Injection Point N.A. N.A. 0.0327 * in $/MMBtu/hr per annum 3 Table 2: Transmission Charges for Shippers with Small Transmission Customers (Exclusive of GST) Transmission Network 1 (West Natuna) Transmission Network 1 (SLNG) Transmission Network 2 (Attap Valley) Transmission Network 2 (Sakra) Transmission Network 2 (SLNG) Entry Capacity Charge per annum ($/MMBtu/hr) Exit Capacity Charge per annum ($/MMBtu/hr) Transmission Usage Charge (comprising non- GSC and GSC) ($/MMBtu) 1,124.22 5,705.00 0.0171 ($/MMBtu) + 0.2200 1,337.32 6,044.92 0.0205 + 0.0300 1,735.95 5,093.27 0.0171 + 0.2200 1,325.92 5,503.30 0.0171 + 0.2200 1,272.14 6,110.10 0.0205 + 0.0300 Table 2a: Transmission Charges for Shippers with Small Transmission Customers (Inclusive of 9% GST) + Transmission Network 1 (West Natuna) Transmission Network 1 (SLNG) Transmission Network 2 (Attap Valley) Transmission Network 2 (Sakra) Transmission Network 2 (SLNG) Entry Capacity Charge per annum ($/MMBtu/hr) + Note: Figures may not reflect the full GST effect due to rounding. Exit Capacity Charge per annum ($/MMBtu/hr) Transmission Usage Charge (comprising non- GSC and GSC) ($/MMBtu) 1,225.40 6,218.45 0.0186 ($/MMBtu) + 0.2398 1,457.68 6,588.96 0.0223 + 0.0327 1,892.19 5,551.66 0.0186 + 0.2398 1,445.25 5,998.60 0.0186 + 0.2398 1,386.63 6,660.01 0.0223 + 0.0327 4

STMicroelectronics enhances sustainability with chiller cooling system at Toa Payoh SUSTAINABILITY SP Group's Chiller Cooling System at STMicroelectronics Toa Payoh SP and STMicroelectronics (ST) will be announcing today that SP has been appointed to upgrade ST’s cooling infrastructure at its Toa Payoh site. This serves as a critical hub for ST’s packaging R&D and wafer testing operations. This new tailored, integrated system with dual-temperature capability, has a cooling capacity of 3,200 refrigerant tons. It will save up to five Gigawatt-hours of energy annually, equivalent to powering over 1,100 four-room HDB households a year, and is expected to reduce carbon emissions by approximately 2,140 tons annually. Read more here. - 29 May 2025 TAGS DISTRICT COOLING YOU MIGHT BE INTERESTED TO READ SP Group expands sustainable energy operations in China with Chongqing Transport Hub project win SP signs PPA with BASF for rooftop solar deployment SP partners State Grid China at International Forum on Power System Transformation 2025