Datang Sanmenxia power station
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Datang Sanmenxia power station is an operating power station of at least 2900-megawatts (MW) in Daying, Shan, Sanmenxia, Henan, China with multiple units, some of which are not currently operating.
Table 1: Project-level location details
|Plant name||Location||Coordinates (WGS 84)|
|Datang Sanmenxia power station||Daying, Shan, Sanmenxia, Henan, China||34.6855176, 111.0274363 (exact)|
The map below shows the exact location of the power station.
Unit-level coordinates (WGS 84):
- Phase II Unit 3, Phase I Unit 1, Phase II Unit 4, Phase I Unit 2, Phase III Unit 6, Phase III Unit 5: 34.6855176, 111.0274363
Table 2: Unit-level details
|Unit name||Status||Fuel(s)||Capacity (MW)||Technology||Start year||Retired year|
|Phase II Unit 3||operating||coal - bituminous||630||supercritical||2006||–|
|Phase I Unit 1||operating||coal - bituminous||320||subcritical||1995||–|
|Phase II Unit 4||operating||coal - bituminous||630||supercritical||2006||–|
|Phase I Unit 2||operating||coal - bituminous||320||subcritical||1996||–|
|Phase III Unit 6||cancelled||coal - bituminous||1000||ultra-supercritical||–||–|
|Phase III Unit 5||operating||coal - bituminous||1000||ultra-supercritical||2017||–|
Table 3: Unit-level ownership and operator details
|Phase II Unit 3||Datang Sanmenxia Power Generation Co Ltd [100.0%]|
|Phase I Unit 1||Sanmenxia Huayang Power Generation Co Ltd [100.0%]|
|Phase II Unit 4||Datang Sanmenxia Power Generation Co Ltd [100.0%]|
|Phase I Unit 2||Sanmenxia Huayang Power Generation Co Ltd [100.0%]|
|Phase III Unit 6||Datang Sanmenxia Electric Power Co Ltd [100.0%]|
|Phase III Unit 5||Datang Sanmenxia Electric Power Co Ltd [100.0%]|
Project-level coal details
- Permit(s): December 13, 2010
The first two subcritical units belonging to Sanmenxia Huayang Electricity Generation company, totaling 600 MW (later increased to 640 MW), were brought online in 1995 and 1996. The three shareholders are Datang Henan Electricity Generation Company Ltd.(55%)， Henan Investment Group (40%) and Sanmenxia City Construction and Investment Center (5%).
The second two supercritical units belonging to Datang Sanmenxia Electricity Generation Company. Ltd., totaling 1,200 MW (later increased to 1,260 MW), were brought online in 2006. The two original shareholders are China Datang (60%) and Sanmenxia City Construction and Investment Center (40%). In 2009, Électricité de France S.A.（EDF）bought 35% of shares from Sanmenxia City Construction and Investment Center. The Sanmenxia City Construction and Investment Center's share is 5% since then. 
Datang planned to build two additional coal-fired units at this plant, units 5-6, with a total capacity of 2,000 MW. It belongs to Datang Sanmenxia Power Company, Ltd. The three shareholders are: Datang Henan Electricity Generation Company Ltd.(65%), Shaanxi Coal and Chemical Industry Group (30%), and Sanmenxia City Construction and Investment Center (5%). It received permit for construction from NDRC in 2010. But the construction on unit 5 only began in 2015. Unit 6 was still in planning.
Unit 5 began operating in January 2017. 
Suspension of unit 6
In March 2016 China's National Development and Reform Commission (NDRC) released guidelines for regulating coal power development to crack down on the severe and growing coal power overcapacity crisis. 13 provinces were told to suspend new approvals through 2017, including Henan. For details, see China's 2016 Restrictions on Development of Coal-Fired Power Capacity.
Plant Details for Existing Units 1-4
- Sponsor: Sanmenxia Huayang Electricity Generation company (unit 1 & 2); Datang Sanmenxia Electricity Generation Company (unit 3 & 4)
- Parent company: Datang
- Location: Daying Town, Shan County, Sanmenxia Prefecture, Henan Province, China
- Coordinates: 34.6855176, 111.0274363 (exact)
- Status: Operating
- Gross capacity: 1,900 MW (Units 1 & 2: 320 MW; Units 3 & 4: 630 MW)
- Type: Subcritical (Units 1 & 2); Supercritical (Units 3 & 4)
- In service: 1995-96 (Units 1 & 2); 2006 (Units 3 & 4)
- Coal type:
- Coal source:
- Source of financing:
Articles and Resources
- "三门峡华阳发电有限责任公司简介," China Datang website, accessed July 2015
- "大唐三门峡发电公司" China Datang website
- "中电工程设计的大唐三门峡火电厂三期扩建工程正式开工",北极星电力网首页, 2014-7-17
- "大唐三门峡发电公司三期100万千瓦机组工程获准",国务院国有资产监督管理委员会, 2010-12-23
- "豫西崛起的特大型火电厂——大唐三门峡发电厂三期建设工地印象," www.chinapower.com.cn, 2015年6月3日
- "大唐在豫首台1000MW机组通过168小时试运," 中电新闻网, 2017/1/6
To access additional data, including an interactive map of coal-fired power stations, a downloadable dataset, and summary data, please visit the Global Coal Plant Tracker on the Global Energy Monitor website.