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. [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 。 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. 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. 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. 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. 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

Media Release New Energy Story Exhibition to Supercharge Singapore’s Energy Future The exhibition seeks to advance the little red dot’s agenda on sustainable development by accelerating awareness and adoption of efficient energy practices amongst the public SINGAPORE, 11 August 2021 - Science Centre Singapore (SCS) today launches Energy Story, a new exhibition exploring the sources, transformation, and uses of energy, from natural cycles to modern applications. Jointly presented by SCS, the Energy Market Authority (EMA) and SP Group, this is a net-zero showcase where the energy consumption of the interactive space is fully matched with an equivalent amount of green energy produced, through the purchase of Renewable Energy Certificates1 (RECs). The exhibition was conceptualised to raise awareness of the critical role that cleaner energy plays in charting a more sustainable future and accelerating the adoption of energy efficient practices amongst the public. Associate Professor Lim Tit Meng, Chief Executive of Science Centre Board said, “The sustainability mandate is not a new one, it has just been brought into focus in the face of the ongoing economic and environmental crises. Efficient energy consumption, on a larger scale can significantly impact immediate capital and climate recovery to help us realise the long-term vision of a truly sustainable society. With Energy Story exhibition, we hope that guests from all walks of life will gain a better understanding of the importance of growing green energy and be inspired to play a part in the nation’s “energy reset” movement. From institutions to authorities, companies to the public, we all need to work together to change the future of our world.” Mr Ngiam Shih Chun, Chief Executive, Energy Market Authority added, “Singapore’s energy landscape has evolved significantly over the last 50 years. We switched from the use of oil-fired power plants to cleaner sources such as natural gas. Singapore is also one of the most solar energy-dense cities in the world. We plan to decarbonise our power sector further with the deployment of more low-carbon options. We hope Singaporeans and especially students can learn about Singapore’s energy transformation and play a part in creating a sustainable energy future for all.” Mr Stanley Huang, Group Chief Executive Officer, SP Group, commented, “Through this exhibition, visitors can learn about Singapore’s world-class energy network, and what goes into making it reliable, secure and sustainable for generations to come. As we empower the future of energy, we put knowledge and tools in the hands of the public, so that everyone can take steps to contribute towards a greener world. This exhibition will also be a net-zero showcase, through the purchase of Renewable Energy Certificates on the SP REC Platform2. The electricity consumption of the interactive space will be fully matched with an equivalent amount of green energy produced.” Six zones of multimedia displays, interactives, and poster panels tell the story of how humankind has progressed off the back of energy discovery, and must now work towards a cleaner, more sustainable future. Visitors can explore global, regional, and local energy data, interact with models of different technologies, and demonstrate relevant physics concepts. A key feature of the exhibition is Singapore’s Energy Story, a zone dedicated to raising awareness of our four energy switches and how we are working towards greater sustainability. It highlights the progress of our nation’s energy revolution over the past 50 years and how we balance energy trade-offs to power our future. The exhibition is also aligned with the Ministry of Education (MOE)’s Science syllabus to support learning for lower secondary students, with the exhibits reinforcing textbook topics ranging from the fundamentals of energy in physics to Singapore’s pursuit of technological advancements through research and development. It follows EMA’s earlier collaboration with MOE on a series of energy education videos from 2019, four of which are featured within the exhibition. Finally, the exhibition addresses our responsibility as energy consumers. This call-to-action can be seen throughout the 400-square metre exhibition space, inviting visitors to be more energy conscious in their everyday life. These collective small steps can spur a big impact in building a sustainable future for Singapore. The Energy Story Exhibition is now running at the Science Centre Singapore and is accessible with a general admission ticket. Tickets are available for purchase through the online ticketing platform at www.science.edu.sg/buy-tickets. View the appendix for descriptions of the six zones and visit www.science.edu.sg/energy for more details on the exhibition. -End- APPENDIX The Energy Story Exhibition spans six interactive zones exploring the sources, transformation and uses of energy, from natural cycles to modern applications. Zone 1: Evolution of Energy Sources This zone chronicles how energy sources have developed over centuries and how energy continues to drive human civilisation. It includes visualisation of the story of energy over time, from the Industrial Revolution to the present day, and the impact of climate change on energy transition. Zone 2: Fundamentals of Energy This zone highlights physics concepts related to energy, to support learning and education in MOE schools. Interactive exhibits in this space illustrate the Law of Conservation of Energy, including a fun “shadow flash” wall where visitors power a flashing lamp by pedalling a stationary bike in order to “freeze” shadows against a luminescent wall. Zone 3: Modern Energy Sources This zone sheds light on the pros and cons of various energy sources, such as natural gas,solar energy and wind energy, and explains the trade-offs involved in the Energy Trilemma. Learn about how different countries use energy through an interactive data visualisation world map and get competitive in a multi-player “Future Power” game, in which participants “gather” energy while navigating challenges caused by cost and pollution. Zone 4: Singapore’s Energy Story This zone introduces Singapore’s energy transformation as guided by the ‘Four Switches’ - Natural Gas, Solar, Regional Power Grids, and Low-Carbon Alternatives. Learn about how photovoltaic panels work and how Singapore is working to achieve its target of deploying at least two-gigawatt peak (GWp) of solar energy by 2030. Zone 5: Energising the Future This zone shines a spotlight on Singapore’s latest research and development (R&D) efforts in energy, in tandem with the global transition to a sustainable energy future. The focus is on how we are working with the local industry and research community to undertake R&D and pilot solutions to improve how energy is generated, distributed and used. Zone 6: Playing Your Part This zone is a call-to-action for citizens to play a part in national energy conservation efforts, complete with practical energy efficient tips that can be harnessed in everyday life. It includes an “Energy Conservation at Home” game, in which one strives to achieve the highest energy savings by choosing and employing various electrical appliances. Before leaving the exhibition, visitors can share their thoughts and ideas on how Singapore can achieve an energy efficient future on a photobooth-cum-pledge wall. -End- About Science Centre Singapore Science Centre Singapore, a non-formal educational institution and leading regional Science Centre, along with its group of attractions, brings out the wonders of science, technology, engineering and mathematics through its unique blend of exhibitions, educational programmes and events. A custodian of creativity and innovation, Science Centre Singapore has captured the evolution of scientific developments for nearly four decades. The Centre and its partners have played a pivotal role in transforming the way students and the public interact with and learn about science, technology, engineering and mathematics. Since 1977, the Centre has welcomed over 30 million visitors and inspired them with more than 1,000 exhibits spread across 14 exhibition galleries and outdoor exhibition spaces. The Centre’s group of attractions include Omni-Theatre, Snow City and KidsSTOPTM. The Omni- Theatre is an immersive dual-technology edutainment destination fitted with Southeast Asia’s largest seamless dome screen and featuring the latest and brightest 8k digital full dome system in the world. Snow City is Singapore’s only permanent indoor snow centre offering an Arctic inspired experience at Singapore’s first ice gallery and snow chamber. KidsSTOPTM - Where every child gets to Imagine, Experience, Discover and Dream - is Singapore’s first children’s science centre offering an enriching experience through purposeful play for children aged 18 months to 8 years old. For more information, please visit www.science.edu.sg. About the Energy Market Authority The Energy Market Authority (EMA) is a statutory board under the Ministry of Trade and Industry. Our main goals are to ensure a reliable and secure energy supply, promote effective competition in the energy market and develop a dynamic energy sector in Singapore. Through our work, EMA seeks to forge a progressive energy landscape for sustained growth. Website: www.ema.gov.sg | Follow us: Instagram: @EMA_Singapore | Facebook: facebook.com/EnergyMarketAuthority | Twitter: @EMA_sg About SP Group SP Group is a leading utilities group in the Asia Pacific, empowering the future of energy with low- carbon, smart energy solutions for its customers. It owns and operates electricity and gas transmission and distribution businesses in Singapore and Australia, and sustainable energy solutions in Singapore and China. As Singapore’s national grid operator, about 1.6 million industrial, commercial and residential customers benefit from its world-class transmission, distribution and market support services. These networks are amongst the most reliable and cost-effective world-wide. Beyond traditional utilities services, SP Group provides a suite of sustainable and renewable energy solutions such as microgrids, cooling and heating systems for business districts and residential townships, solar energy solutions, electric vehicle fast charging and digital energy solutions for customers in Singapore and the region. For more information, please visit spgroup.com.sg or for follow us on Facebook at fb.com/SPGroupSG, on LinkedIn at spgrp.sg/linkedin and on Twitter @SPGroupSG. 1 Renewable Energy Certificates (RECs) are tradable green energy attributes that represent units of electricity generated from renewable energy generation facilities. With each megawatt-hour of green energy produced, one REC is recorded and tracked. A buyer can purchase RECs to show proof that an equivalent amount of green energy has been consumed to offset the same amount of electricity used. 2 The SP REC Platform operates as a neutral engine that facilitates the transaction of RECs, where buyers and sellers from around the globe are automatically matched based on respective requirements.

Community Engagement and Relations SUSTAINABILITY REPORT Community Engagement & Relations SP Group recognises that strong community relationships and meaningful societal contributions are integral to our long-term success and corporate purpose. We seek to create shared value by going beyond essential services delivery to support social wellbeing and resilience, particularly for seniors, youth and children from lower income families. We adopt a strategic and long-term approach to community engagement, working closely with stakeholders to ensure our initiatives remain relevant, responsive and aligned with evolving needs.  Where our operations interface directly with communities, such as during infrastructure development and maintenance works, we commit to clear and timely communication, with the objective of minimising disruption to residents, businesses and other stakeholders.  Key Initiatives Celebrating SP30 and SG60 SP marked its 30th year of corporatisation and Singapore’s 60th year of independence with yearlong community outreach initiatives. These were launched at the SP Community Festival, celebrating the spirit of philanthropy and volunteerism. It brought together SP Group’s leadership and employees, alongside community partners, to deepen understanding of community needs. We also reaffirmed our sustained engagement and collaborations with our anchor partner Community Chest Singapore and other social service agencies. At the festival, SP Group announced a three-times matching scheme for all staff donations till end 2025. This resulted in a doubling of staff donations that year compared to the previous year. SP Group also launched SG60 Journeys from the Heart, hosting 600 seniors, youth and children on customised experiential trips to places of interest in Singapore. Accompanied by staff volunteers, known as SP Heart Workers, these journeys on electric buses created memorable outings while underscoring SP’s commitment to sustainable mobility. Leveraging these milestone initiatives, SP Heart Workers clocked 12,000 volunteer hours – a 45% increase from last year. All business units participated in volunteering during the year, with 40% of our employees volunteering at least once. We also delivered 10,000 Power Packs of daily essentials to beneficiaries of different age segments, with items customised for the needs of each segment. Community Chest SP Group’s philanthropic contributions are stewarded through our long-standing partnership with Community Chest, the philanthropy arm of National Council of Social Services. Community Chest channels 100% of donations to critical services delivered by SP’s partner social service agencies. This structured approach enables us to maximise impact by strengthening our partners’ programmes and ensuring resources are directed towards areas of greatest need. TOUCH Community Services In 2026, SP Group committed S$2.1 million over three years to TOUCH Community Services, enabling the formation of the SP CHAMP League. The programme supports over 700 children and youth aged 7 to 17 from lower-income families through mentoring, academic tutoring and structured enrichment activities that strengthen cognitive skills and support social mobility. KidSTART SP Group also continued its partnership with KidSTART through a S$1.1 million donation that ensures the sustained delivery and expansion of the PowerUP Playtime programme. The initiative provides age-segmented toys and learning tools for pre-schoolers from lower-income or vulnerable households, fostering stronger parent-child bonds, joyful learning experiences and positive early childhood development. This brings our total contribution to KidSTART Singapore to S$5.4 million since 2021. Learn more about our other initiatives in our Sustainability Report TAGS SUSTAINABILITY REPORT FY2526 YOU MIGHT BE INTERESTED TO READ Digitalisation Cybersecurity & Data Privacy Business Ethics & Compliance Reliability & Customer Satisfaction

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

Search Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Sustainabilityhttps://www.spgroup.com.sg/about-us/media-resources/energy-hub/sustainability/enabling-green-mobility-in-tengah SP Energy HubAnnual ReportReliabilitySustainabilityInnovation Enabling green mobility in Tengah Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Sustainabilityhttps://www.spgroup.com.sg/about-us/media SP Group Opens Singapore’s First Smart Energy Town Showcase at MyTengah Experience Centrehttps://www.spgroup.com.sg/about-us/media-resources/news-and-media-releases/SP-Group-Opens-Singapore-s-First-Smart-Energy-Town-Showcase-at-MyTengah-Experience-Centre at Tengah, will be open to the public from 20 October 2020. SP will bring Singapore’s first large-scale residential centralised cooling system to Tengah. Located at the HDB Hub in Toa Payoh, the MyTengah Experience Centre will give future Tengah residents and visitors a first-hand look and feel of living Sustainabilityhttps://www.spgroup.com.sg/about-us/media-resources/energy-hub/sustainability/enabling-green-mobility-in-tengah SP Energy HubAnnual ReportReliabilitySustainabilityInnovation Enabling green mobility in Tengah SUSTAINABILITY SP Group (SP) is partnering Toyota’s authorised car distributor Borneo Motors Singapore (BMS) on EV sharing and leasing schemes for residents of Tengah. SP and BMS signed an MOU to explore Category: Sustainability Borneo Motors Singapore and SP Group to Pilot Singapore’s First Electric Car-Sharing Programme in Tengah, Singapore’s First Integrated Smart Energy Townhttps://www.spgroup.com.sg/about-us/media-resources/news-and-media-releases/Borneo-Motors-Singapore-and-SP-Group-to-pilot-Singapore-s-first-electric-car-sharing-programme-in-Tengah--Singapore-s-first-integrated-smart-energy-town News Release Borneo Motors Singapore and SP Group to Pilot Singapore’s First Electric Car-Sharing Programme in Tengah, Singapore’s First Integrated Smart Energy Town • The partnership aims to accelerate Singapore's transition to green mobility by increasing awareness on sustainable mobility [30062022]+Media+Release+-+BMS+and+SP+to+pilot+SG's+first+electric+car+sharing+programme+in+Tengah.pdfhttps://www.spgroup.com.sg/dam/spgroup/wcm/connect/spgrp/7aacef70-9cf0-44e6-8484-b84ac03837ec/%5B30062022%5D+Media+Release+-+BMS+and+SP+to+pilot+SG's+first+electric+car+sharing+programme+in+Tengah.pdf?MOD=AJPERES&CVID= News Release BORNEO MOTORS SINGAPORE AND SP GROUP TO PILOT SINGAPORE’S FIRST ELECTRIC CAR-SHARING PROGRAMME IN TENGAH, SINGAPORE’S FIRST INTEGRATED SMART ENERGY TOWN • The partnership aims to accelerate Singapore’s transition to green mobility by increasing awareness on sustainable mobility Sustainabilityhttps://www.spgroup.com.sg/about-us/media-resources/energy-hub/sustainability/powering-tengah--singapore-s-first-ai-enabled--eco-friendly--smart-energy-town SP Energy HubAnnual ReportReliabilitySustainabilityInnovation Powering Tengah, Singapore’s First AI-enabled, Eco-friendly, Smart Energy Town SUSTAINABILITY Speakers and moderator at the virtual Ecosperity Conversations on “Sustainable Districts for a Sustainable City”. Photo credits: Temasek How Category: Sustainability Searchhttps://www.spgroup.com.sg/search?tag=mobility -Capabilities-via-Investment-in-The-Mobility-House Media Release SP Group Boosts Electric Mobility Searchhttps://www.spgroup.com.sg/search?tag=tengah -resources/energy-hub/sustainability/enabling-green-mobility Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Sustainabilityhttps SP Group launches Singapore’s first EV fast charging hub in a HDB carpark in Tengahhttps://www.spgroup.com.sg/about-us/media-resources/news-and-media-releases/SP-Group-launches-Singapore-first-EV-fast-charging-hub-in-a-HDB-carpark Media Release SP Group launches Singapore’s first EV fast charging hub in a HDB carpark in Tengah   Eight DC and six AC charging points at Singapore’s first eco-smart town enable quick and convenient charging   Singapore, 16 May 2026 - SP Mobility, part of SP Group (SP), is bringing more high-speed Searchhttps://www.spgroup.com.sg/search?tag=mobility -Capabilities-via-Investment-in-The-Mobility-House Media Release SP Group Boosts Electric Mobility Searchhttps://www.spgroup.com.sg/search?tag=tengah -resources/energy-hub/sustainability/enabling-green-mobility Searchhttps://www.spgroup.com.sg/search?tag=tengah Search Sustainabilityhttps Searchhttps://www.spgroup.com.sg/search?tag=smart-city digital platform Singapore is piloting more energy-efficient technologies, including district cooling systems like the one implemented in the Marina Bay district (above) in 2006, enabling energy savings of up to 40 per cent, according to energy utilities provider SP Group. Tengah new town [20201020] The Straits Times - 1,000 households opt in for Tengah's cool new featurehttps://www.spgroup.com.sg/dam/jcr:fea163a3-bd12-4186-8b21-42be5337b24c ” of Tengah, where some 8,000 Build-To-Order (BTO) flats have been launched so far. Home owners who opt for the energy-efficient system will save around 15 per cent to 20 per cent in upfront costs compared with current market rates, and up to 30 per cent in life cycle costs, energy utilities provider SP 1 2 3 4 5 ..... 10

News & Media Releases Latest All Years 06 Jun 2019 SP Group and Gardens by the Bay Pilot Zero-Waste Gasification System 13 Mar 2019 Facebook and WhatsApp Service Disruption 09 Jan 2019 SP Group Offers EV Full Charging In 30 Minutes 31 Dec 2018 Electricity Tariff Revision For The Period 1 January to 31 March 2019 02 Nov 2018 SP Develops Future Energy Leaders Through First Energy Managers Programme And Industry Scholarships 31 Oct 2018 JTC And SP Group To Develop And Operate Singapore's First Smart Grid For Business Parks At Punggol Digital District 29 Oct 2018 SP Group Launches One Of The World's First Blockchain-Powered Trading Of Renewable Energy Certificates 29 Oct 2018 SP Group Launches World's First International Index For Utilities To Advance In Grid Smartness 25 Oct 2018 SP Group Targets 1,000 Electric Vehicle Charging Points In Its Network By 2020 29 Sep 2018 Electricity Tariff Revision For The Period 1 October to 31 December 2018 1 ... 17 18 19 ... 23

Consumption_Elect Average consumption of Electricity (kWh) Premises Types May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 Feb-24 Mar-24 Apr-24 HDB 1-Room 142 152 147 145 143 146 144 135 126 126 132 150 HDB 2-Room 185 202 190 190 189 190 188 176 164 167 173 199 HDB 3-Room 270 288 271 272 269 274 269 247 236 241 250 292 HDB 4-Room 367 391 371 371 367 374 370 342 321 330 342 398 HDB 5-Room 428 456 437 434 427 437 436 401 367 381 399 463 HDB Executive 528 561 531 536 528 541 530 478 456 474 489 575 Apartment 543 585 546 514 515 537 541 483 430 435 486 578 Terrace 867 902 868 866 859 890 881 804 740 794 821 957 Semi-Detached 1,182 1,233 1,159 1,134 1,150 1,187 1,174 1,065 1,019 1,038 1,109 1,254 Bungalow 2,303 2,482 2,320 2,219 2,298 2,308 2,358 2,075 2,106 1,951 2,146 2,432

Consumption_Water Average consumption of Water (CuM) Premises Types Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 Feb-24 Mar-24 Apr-24 May-24 Jun-24 Jul-24 HDB 1-Room 7.9 8.0 8.0 8.0 7.8 7.8 8.0 8.3 8.4 8.1 7.7 7.5 HDB 2-Room 9.5 9.5 9.5 9.6 9.3 9.3 9.3 9.7 10.0 9.5 8.7 8.7 HDB 3-Room 12.4 12.4 12.4 12.3 12.0 12.0 12.2 12.8 12.9 12.0 11.5 11.6 HDB 4-Room 15.5 15.7 15.7 15.5 15.1 15.0 15.5 16.2 16.3 15.3 14.7 14.6 HDB 5-Room 16.8 17.1 17.1 16.9 16.4 16.1 16.7 17.8 17.7 16.7 16.0 15.6 HDB Executive 18.9 19.0 19.2 18.8 18.1 18.1 18.8 19.9 19.7 18.6 17.7 17.7 Apartment 13.3 13.7 13.9 13.7 13.1 12.8 13.1 14.4 14.3 13.2 12.7 12.5 Terrace 25.9 26.0 26.5 26.5 25.2 24.3 25.8 28.0 28.4 24.2 24.1 24.7 Semi-Detached 31.5 31.6 32.9 31.9 30.4 30.0 30.7 34.9 34.6 30.2 28.3 30.0 Bungalow 48.5 51.7 54.8 54.2 48.6 49.4 46.3 59.5 58.1 50.4 42.1 49.6

Consumption_Water Average consumption of Water (CuM) Premises Types Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 HDB 1-Room 7.2 7.8 7.8 8.1 7.8 8.1 8.0 7.8 7.9 7.7 7.7 7.6 HDB 2-Room 8.4 9.0 9.0 9.1 9.0 9.3 9.2 8.8 9.1 8.7 8.9 8.8 HDB 3-Room 11.2 12.0 12.0 12.1 11.8 12.2 12.3 11.9 12.0 11.7 11.8 11.9 HDB 4-Room 14.3 15.3 15.1 15.4 14.9 15.4 15.6 15.1 15.3 14.7 14.8 15.0 HDB 5-Room 15.8 16.8 16.5 16.8 16.2 16.9 17.1 16.6 16.8 16.1 16.2 16.5 HDB Executive 17.8 18.8 18.4 18.7 18.2 18.8 19.2 18.4 18.8 18.1 18.2 18.5 Apartment 12.7 13.7 13.5 13.4 12.8 13.3 13.9 13.7 13.7 13.1 13.0 13.1 Terrace 24.7 25.7 25.1 25.6 25.1 26.1 26.5 26.0 26.0 25.8 25.7 26.8 Semi-Detached 29.8 31.0 30.4 30.9 30.5 32.0 32.5 31.1 31.6 30.5 30.7 32.9 Bungalow 48.6 51.5 48.4 49.7 49.3 50.9 53.6 49.6 52.7 49.3 52.6 53.6

27 July 2015 News Release For immediate release SINGAPORE POWER CELEBRATES SG50 BY PROVIDING FREE MOBILE DEVICE CHARGING STATIONS 200 stations in public places to help Singapore stay connected 24/7 Singapore, 27 July 2015 – Singapore Power (SP) today unveiled its ‘Gift of Power’ to the nation for SG50: an island-wide network of charging stations for Singaporeans to charge their mobile devices at no cost. 2. SP will progressively roll out close to 200 stations in high-traffic locations across the island; working with partners such as SingHealth’s group of public healthcare institutions, Tan Tock Seng Hospital, tertiary institutions such as the National University of Singapore (NUS), Singapore University of Technology and Design (SUTD), and Singapore Polytechnic; National Library Board and NTUC FairPrice supermarkets. All the units are expected to be in place by December 2015. 3. Mr Wong Kim Yin, Group CEO of Singapore Power, said, “Mobile devices are an essential part of everyday life. Running out of power when we least expect it can be inconvenient, and even distressing. Just as Singapore Power serves the nation by striving to keep the light on 24/7, the Gift of Power reaffirms our commitment to always be there for Singapore, by helping Singapore stay connected." Mr Wong also thanked all partners for readily embracing the idea and hosting the stations. 4. “As the largest public healthcare cluster, SingHealth healthcare institutions receive more than four million patient visits each year, and we often receive requests from patients and visitors for places to charge their mobile devices. We understand that coming to hospital for treatment can be stressful and staying connected helps to manage that anxiety, so we are very pleased to partner Singapore Power to offer this convenience to our patients and their caregivers,” said Mr Tan Jack Thian, Group Chief Operating Officer of SingHealth. 5 Mr Seah Kian Peng, CEO of NTUC FairPrice, added, "Mobile devices have become an integral part of our daily lives and NTUC FairPrice understands the needs of our customers who may require a quick charge-up for their mobile devices while visiting our stores. We are pleased to partner Singapore Power on this Gift of Power initiative to empower customers and provide yet another value-added service to them, while at the same time connect with Singaporeans in celebrating our nation’s 50 th birthday." 6. Members of the public can access this charging facility, with intuitive operating instructions displayed in English, Mandarin, Malay and Tamil on-screen. To charge their devices, users need only scan the barcode of a personal identification card 1 and create a 1 Acceptable personal identification cards include: NRICs, Driving Licenses, Student Passes or Senior Citizen Concession Cards 1 unique 4-digit personal identification number (PIN), before plugging in their device. Users must repeat the two-step authentication process to retrieve their device. 7. Each charging station is equipped with 10 individual slots, which can each fit a mobile phone or tablet device. Each charging slot has multiple charging tips which will fit most mobile phones and tablets on the market, as well as a USB port to cater to other devices. 8. With the launch, there will be at least 20 stations installed by mid-August. Approximately 40 additional machines will be introduced every subsequent month through December. An up-to-date list of charging station sites will be maintained at http://giftofpower.singaporepower.com.sg. Additional comments from partners “While friends and families are sitting in anticipation of the outcome of a loved one’s medical procedure, the last thing they need to worry about is their phone battery. These mobile charging stations will enable them to stay charged, stay in touch, and stay a little bit less stressed.” Ms. Ng Kucy Ping, Director, Operations (Community), Tan Tock Seng Hospital “The National University of Singapore is happy to be part of Singapore Power’s ‘Gift of Power’ SG50 initiative. This generous and meaningful gift will certainly be appreciated by members of the NUS community.” Mr. Chew Chin Huat, Director of Office of Facilities Management, National University of Singapore “The Gift of Power is a creative idea to improve access to connectivity. This aligns well with our mission to nurture young talent to meet societal needs through technology, design and innovation. The Singapore University of Technology and Design (SUTD) is pleased to partner Singapore Power in this initiative. We hope the power boost brings about added inspiration and resourcefulness amongst our students to create a better world by design.” Ms. Yvonne Ho, Director, Office of Advancement and Development, Singapore University of Technology and Design “Mobile devices are increasingly being used by staff and students for teaching and learning, and social engagement in Singapore Polytechnic. Hence, we appreciate Singapore Power’s initiative to enhance connectivity and communication which is indeed timely and beneficial to all.” Mr. C. Pannirselvam, Director, Department of Estates & Development, Singapore Polytechnic Key terms in Mandarin Singapore Power (SP) SP Group CEO Wong Kim Yin Gift of Power Mobile charging station SingHealth 新 加 坡 能 源 公 司 新 加 坡 能 源 集 团 总 裁 黄 锦 贤 能 源 之 礼 手 机 充 电 站 新 加 坡 保 健 服 务 集 团 2 Tan Jack Thian, Group Chief Operating Officer of the SingHealth Group Tan Tock Seng Hospital National Library Board National University of Singapore Chew Chin Huat, Director, Office of Facilities Management, NUS Singapore University of Technology and Design NTUC FairPrice Seah Kian Peng, CEO (Singapore), NTUC Fairprice Singapore Polytechnic 新 加 坡 保 健 服 务 集 团 集 团 营 运 总 监 陈 奕 翔 陈 笃 生 医 院 国 家 图 书 馆 管 理 局 新 加 坡 国 立 大 学 周 振 發 , 主 任 , 物 业 管 理 处 , 新 加 坡 国 立 大 学 新 加 坡 科 技 设 计 大 学 职 总 平 价 超 市 谢 健 平 , 总 裁 ( 新 加 坡 ), 职 总 平 价 新 加 坡 理 工 学 院 About Singapore Power Singapore Power Group (SP) is a leading energy utility 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. More than 1.4 million industrial, commercial and residential customers in Singapore benefit from SP’s world-class transmission, distribution and market support services. The networks in Singapore are amongst the most reliable and cost-effective worldwide. For more information, please visit www.singaporepower.com.sg. Issued by: Singapore Power Limited 10 Pasir Panjang Road #03-01 Mapletree Business City Singapore 117438 Co. Reg. No : 199406577N www.singaporepower.com.sg -- end – 3

21 March 2014 PRESS RELEASE SINGAPORE POWER ENHANCES FEEDBACK CHANNELS WITH MOBILE APPLICATION 1. Sending feedback on electricity and gas matters is now easier and more convenient with a new mobile application by Singapore Power (SP). 2. Available for download on both iOS and Android platforms, the app allows the public to provide service feedback or report on electricity and gas supply matters. Customers can also use the app to send feedback on SP worksites such as roadworks, noise or safety concerns, and equipment like overground boxes and substations. In addition, the app enables the public to attach pictures and tag location specific information to the feedback. (see Annex A for screenshots of the app) 3. This app leverages Singapore’s high smartphone penetration rate and excellent cellular infrastructure, to provide SP customers with another fast, easy and convenient way to connect with SP in real time. 4. "Timely feedback from our stakeholders is crucial to our operations. This new app underscores our commitment to service excellence and to deliver quality, reliable and secure electricity and gas supply to the nation,” said Mr Peter Leong, Managing Director of SP PowerGrid. 5. For feedback warranting a direct service response, customers should call the following numbers: a. 1800–778 8888 for electricity supply disruptions; or b. 1800–752 1800 for gas supply disruptions or suspected gas leaks. 6. For more information on the SP public feedback application, please visit the Singapore Power website or get on the App store (iPhone users) or Play Store (Android users) and search for “SP PowerGrid” – END – 1 Issued by: Singapore Power Limited 10 Pasir Panjang Road #03-01 Mapletree Business City Singapore 117438 Co. Reg No: 199406577N www.singaporepower.com.sg About Singapore Power Singapore Power Group (SP) is a leading energy utility group in the Asia Pacific. It owns and operates electricity and gas transmission and distribution businesses in Singapore and Australia. More than 1.4 million industrial, commercial and residential customers in Singapore benefit from SP’s world-class transmission, distribution and market support services. The networks in Singapore are amongst the most reliable and cost-effective worldwide. 2 Annex A 3 4

Consumption_Elect Average consumption of Electricity (kWh) Premises Types May-22 Jun-22 Jul-22 Aug-22 Sep-22 Oct-22 Nov-22 Dec-22 Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 Feb-24 Mar-24 Apr-24 HDB 1-Room 145 150 139 143 139 132 130 127 125 121 111 127 142 152 147 145 143 146 144 135 126 126 132 150 HDB 2-Room 189 199 186 186 184 172 171 165 166 158 148 166 185 202 190 190 189 190 188 176 164 167 173 199 HDB 3-Room 268 276 259 264 257 245 245 235 233 226 212 242 270 288 271 272 269 274 269 247 236 241 250 292 HDB 4-Room 370 380 356 361 354 333 334 320 318 309 289 326 367 391 371 371 367 374 370 342 321 330 342 398 HDB 5-Room 431 445 414 420 416 388 389 373 369 363 338 381 428 456 437 434 427 437 436 401 367 381 399 463 HDB Executive 527 543 506 514 504 472 476 448 453 443 414 473 528 561 531 536 528 541 530 478 456 474 489 575 Apartment 573 576 527 523 519 498 496 469 450 425 414 465 543 585 546 514 515 537 541 483 430 435 486 578 Terrace 873 865 817 833 815 781 785 752 748 727 686 756 867 902 868 866 859 890 881 804 740 794 821 957 Semi-Detached 1,196 1,174 1,092 1,097 1,091 1,030 1,054 995 997 962 930 1,024 1,182 1,233 1,159 1,134 1,150 1,187 1,174 1,065 1,019 1,038 1,109 1,254 Bungalow 2,365 2,403 2,168 2,144 2,146 2,004 2,182 1,986 2,073 1,938 1,901 2,016 2,303 2,482 2,320 2,219 2,298 2,308 2,358 2,075 2,106 1,951 2,146 2,432