# Senoko Energy

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**Senoko Energy** is one of Singapore's largest power generation companies in Singapore, accounting for approximately 20% of the nation's electricity supply.

## History

Senoko Power was originally formed in 1977[1] as a power generation arm of the [Public Utilities Board](/source/Public_Utilities_Board_(Singapore)) (PUB) in Singapore.[2] In the 1990s, it converted the Power Station from an open-cycle [gas turbine power plant](/source/Gas_turbine_power_plant) to Singapore's first [combined cycle plant](/source/Combined_cycle_power_plant).[3] It also began piping in natural gas from Malaysia to generate electricity in 1992.[4]

In October 1995, the electricity and gas departments of the PUB corporatised their holdings and vested the electricity and gas undertakings under the [Singapore government](/source/Government_of_Singapore)'s investment arm, [Temasek Holdings](/source/Temasek_Holdings). Within Temasek Holdings, the newly formed [Singapore Power](/source/Singapore_Power) was structured as a holding company for five separate subsidiaries, including PowerSenoko Limited (the original corporate name for the company that would become Senoko Energy).[2]

In April 2001, Singapore Power's power generation subsidiaries (including PowerSenoko) were fully divested to Temasek. That same month, a new statutory body, the [Energy Market Authority](/source/Energy_Market_Authority) (EMA), was established.[5][6][7] PowerSenoko was renamed Senoko Power Limited[8] and it was among the first three companies to receive a power trading licence from the EMA.[9] In April 2004, the company began a $50-million ([SGD](/source/Singaporean_dollar)) power plant upgrade, which eventually made it the largest electricity producer in Singapore.[10][11]

In September 2008, a consortium led by Japanese trading company, [Marubeni](/source/Marubeni), acquired Senoko Power from Temasek Holdings for $3.65 billion (SGD). Other members of the consortium included [Kyushu Electric Power](/source/Kyushu_Electric_Power), [Kansai Electric](/source/Kansai_Electric_Power_Company), the Japan Bank of International Cooperation, and GDF Suez (now [Engie](/source/Engie)) of [France](/source/France).[12] The consortium is known as Lion Power Holdings with Marubeni and Engie holding the most shares at 30% each.[4] Also in 2008, the company started converting three of its oil-fired turbines (producing 750 [MW](/source/Megawatt) of power) into two natural gas-fired turbines (producing 862 MW of power).[13] The $1-billion (SGD) repowering project was completed in 2013 and resulted in a 1-million ton reduction in carbon dioxide emissions annually.[14]

In 2010, the company underwent restructuring and became known by its current name, Senoko Energy Private Limited.[15][16] In November 2016, the company became one of the founding members of the Singapore chapter of the [World Energy Council](/source/World_Energy_Council).[17]

In April 2018, Senoko Energy began offering consumers individual energy plans for households and [small and medium-sized enterprises](/source/Small_and_medium-sized_enterprises) as part of the EMA's soft launch of the Open Electricity Market in Singapore.[18] It was one of 13 approved electricity retailers when the Open Electricity Market opened nationwide[19] in May 2019.[20] It was one of six that also generated its own power.[21]

In November 2024, [Sembcorp](/source/Sembcorp) Industries, through its subsidiary Sembcorp Utilities, acquired Engie’s 30% stake in Senoko Energy, increasing its shareholding in the company.[22]

In June 2025, Sembcorp Utilities and Marubeni Corporation increased their interest in Senoko Energy to 50% each by acquiring the shares of KPIC Netherlands, Kyuden International, and the Japan Bank of International Cooperation. This established a 50/50 joint ownership structure between Sembcorp and Marubeni. Marubeni stated it intended to strengthen Senoko’s profitability, competitiveness, and corporate value in partnership with Sembcorp, while ensuring a stable electricity supply for Singapore.[23][24]

## Subsidiaries

Senoko Energy has three subsidiaries: Senoko Energy Supply, Senoko Services, and Senoko Gas Supply.[1] Senoko Energy Supply is the company's retail arm that sells electricity and other services to consumers in Singapore. Senoko Services leases out fuel storage tanks and provides terminal services.[16] Senoko Gas Supply is a licensed gas shipper and retailer that is authorised by the EMA to ship gas throughout the country's gas network.[25][26]

## References

1. Tang, See Kit (19 November 2019). ["Senoko Energy clarifies that it does not need more Government funding in 'foreseeable future'"](https://www.channelnewsasia.com/news/business/senoko-energy-clarifies-does-not-need-more-government-funding-12106380). CNA. Retrieved 6 February 2020.

1. Tan, Chwee Huat (1 June 2002). [*Singapore Financial & Business Sourcebook*](https://books.google.com/books?id=KV72O4mQ-WwC&dq=%22power+senoko%22+%22public+utilities+board%22&pg=PA662). Singapore: University of Singapore Press. pp. 623, 662. ISBN 978-9971692568.

1. ["Environmental innovations seen in 1997 Project of the Year winners"](https://www.powerengineeringint.com/1997/11/01/environmental-innovations-seen-in-1997-project-of-the-year-winners/). *Power Engineering International*. 1 November 1997. Retrieved 6 February 2020.

1. Hoong Ng, Weng (28 November 2011). [*Singapore, the Energy Economy: From The First Refinery To The End Of Cheap Oil, 1960-2010*](https://books.google.com/books?id=bc21Qxwn9r8C&dq=%22senoko+power%22+%22temasek%22&pg=PA117). Routledge. pp. 116–117, 121, 131. ISBN 978-0415686754.

1. Barton, Barry; Redgwell, Catherine; Rønne, Anita; Zillman, Donald N. (3 June 2004). [*Energy Security: Managing Risk in a Dynamic Legal and Regulatory Environment*](https://books.google.com/books?id=ZKsTFgArP50C&dq=%22energy+market+authority%22&pg=PA403). Oxford, England: Oxford University Press. pp. 403–404. ISBN 978-0199271610.

1. ["China Huaneng to pay $3.1b for Tuas Power"](http://www.chinadaily.com.cn/business/2008-03/14/content_6537573.htm). *China Daily*. 14 March 2008. Retrieved 9 February 2020.

1. Low, Linda (2002). "Rethinking Singapore Inc. and GLCs". *Southeast Asian Affairs*. **2002**: 282–302. [JSTOR 27913213](https://www.jstor.org/stable/27913213)

1. ["Senoko to add to its Singapore Electricity Market"](https://www.power-eng.com/2003/10/13/senoko-to-add-to-its-singapore-electricity-market/). *Power Engineering*. 13 October 2003. Retrieved 9 February 2020.

1. ["Three generators to dominate Singapore power market"](https://www.powerengineeringint.com/2002/07/09/three-generators-to-dominate-singapore-power-market/). *Power Engineering International*. 9 July 2002. Retrieved 9 February 2020.

1. ["Senoko sets aside S$50mil for power plant upgrade"](https://www.thestar.com.my/business/business-news/2004/04/01/senoko-sets-aside-s50mil-for-power-plant-upgrade). *The Star*. 1 April 2004. Retrieved 13 February 2020.

1. Guerrera, Francisco & Burtonin, John (6 October 2005). ["Temasek 'preparing for' electricity sale"](https://www.ft.com/content/5749bc28-3686-11da-bedc-00000e2511c8). *Financial Times*. Retrieved 13 February 2020.

1. ["Consortium led by Marubeni to buy Senoko Power of Singapore"](https://www.nytimes.com/2008/09/05/business/worldbusiness/05iht-power.1.15921241.html). *The New York Times*. 5 September 2008. Retrieved 9 February 2020.

1. Chua, Grace (6 February 2013). ["Senoko Energy producing electricity using less fuel"](https://www.straitstimes.com/singapore/senoko-energy-producing-electricity-using-less-fuel). *Straits Times*. Retrieved 14 February 2020.

1. ["Senoko Energy repowers generating stations in Singapore"](https://www.power-technology.com/uncategorised/newssenoko-energy-repowers-generating-stations-in-singapore/). *Power Technology*. 7 February 2013. Retrieved 14 February 2020.

1. Chua, Tony (8 October 2010). ["Boustead subsidiary to construct water treatment plant"](https://sbr.com.sg/building-engineering/news/boustead-subsidiary-construct-water-treatment-plant). *Singapore Business Review*. Retrieved 14 February 2020.

1. Thien, Rachel (5 November 2011). ["Brunei princess tours Singapore's biggest energy provider"](https://www.asiaone.com/News/AsiaOne%2BNews/Singapore/Story/A1Story20111105-308912.html). *AsiaOne*. Retrieved 14 February 2020.

1. Soh, Andrea (10 November 2016). ["Singapore power companies form local chapter of World Energy Council"](https://www.businesstimes.com.sg/energy-commodities/singapore-power-companies-form-local-chapter-of-world-energy-council). *Business Times*. Retrieved 14 February 2020.

1. Mui, Rachel (7 March 2018). ["Senoko Energy launches retail services for consumers ahead of market liberalisation"](https://www.straitstimes.com/business/companies-markets/senoko-energy-launches-retail-services-for-consumers-ahead-of-market). *Straits Times*. Retrieved 14 February 2020.

1. Tang, See Kit (1 October 2018). ["Full opening of electricity market in Singapore to fire up competition: What will retailers do?"](https://www.channelnewsasia.com/news/singapore/full-opening-of-electricity-market-in-singapore-to-fire-up-10767418). CNA. Retrieved 13 February 2020.

1. ["5 myths about the Open Electricity Market"](https://www.straitstimes.com/singapore/5-myths-about-the-open-electricity-market). *The Straits Times*. 4 May 2019. Retrieved 14 February 2020.

1. Gabriel, Anita (4 March 2019). ["Power grab in Singapore's electricity market could spur consolidation"](https://www.businesstimes.com.sg/energy-commodities/power-grab-in-singapores-electricity-market-could-spur-consolidation-0). *Business Times*. Retrieved 14 February 2020.

1. ["SEMBCORP INDUSTRIES LTD : 15-Nov-2024"](https://links.sgx.com/1.0.0/corporate-announcements/N1QDC5HIP69K1AO9/). *links.sgx.com*. Retrieved 2025-07-04.

1. ["SEMBCORP INDUSTRIES LTD : 13-Jun-2025"](https://links.sgx.com/1.0.0/corporate-announcements/LW55D5JPHQD3LN7I/f497ab01df15c8899afc9e32881f2c4afea31b46caf43d817f26a7a406ed1ccc). *links.sgx.com*. Retrieved 2025-07-04.

1. Marubeni Corporation. ["Additional Investment in Senoko Energy Pte. Ltd. in Singapore"](https://www.marubeni.com/en/news/2025/release/00025.html). *Marubeni Corporation*

1. ["S'pore gas retailers cleared to go islandwide"](https://www.businesstimes.com.sg/top-stories/spore-gas-retailers-cleared-to-go-islandwide). *Business Times*. 21 June 2014. Retrieved 14 February 2020.

1. ["Gas Shipper"](https://www.ema.gov.sg/Licensees_Gas_Shipper.aspx). Energy Market Authority. Retrieved 14 February 2020.

## External links

- [Official website](https://www.senokoenergy.com)

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Adapted from the Wikipedia article [Senoko Energy](https://en.wikipedia.org/wiki/Senoko_Energy) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Senoko_Energy?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.