Datang Sanmenxia power station
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Datang Sanmenxia power station (大唐三门峡发电厂) is an operating power station of at least 2900-megawatts (MW) in Daying Town, Shan, Sanmenxia, Henan, China with multiple units, some of which are not currently operating.
Location
Table 1: Project-level location details
| Plant name | Location | Coordinates (WGS 84) |
|---|---|---|
| Datang Sanmenxia power station | Daying Town, Shan, Sanmenxia, Henan, China | 34.6855176, 111.0274363 (exact) |
Unit-level coordinates (WGS 84):
- Phase I Unit 1, Phase I Unit 2, Phase II Unit 3, Phase II Unit 4, Phase III Unit 5, Phase III Unit 6: 34.6855176, 111.0274363
Project Details
Table 2: Unit-level details
| Unit name | Status | Fuel(s) | Capacity (MW) | Technology | CHP | Start year | Emergency/Backup |
|---|---|---|---|---|---|---|---|
| Phase I Unit 1 | Operating | coal: bituminous[1] | 320 | subcritical | yes | 1995 | False |
| Phase I Unit 2 | Operating | coal: bituminous[1] | 320 | subcritical | yes | 1996 | False |
| Phase II Unit 3 | Operating | coal: bituminous[1] | 630 | supercritical | yes | 2006 | False |
| Phase II Unit 4 | Operating | coal: bituminous[1] | 630 | supercritical | yes | 2006 | False |
| Phase III Unit 5 | Operating | coal: bituminous[1] | 1000 | ultra-supercritical | – | 2017 | False |
| Phase III Unit 6 | Pre-permit[2] | coal: bituminous[1] | 1000 | ultra-supercritical | – | – | False |
Table 3: Unit-level ownership and operator details
| Unit name | Owner | Parent |
|---|---|---|
| Phase I Unit 1 | Sanmenxia Huayang Power Generation Co Ltd [100%] | China Datang Corp Ltd [55.0%]; Henan Provincial Investment Co [40.0%]; Sanmenxia Investment Group Co Ltd [5.0%] |
| Phase I Unit 2 | Sanmenxia Huayang Power Generation Co Ltd [100%] | China Datang Corp Ltd [55.0%]; Henan Provincial Investment Co [40.0%]; Sanmenxia Investment Group Co Ltd [5.0%] |
| Phase II Unit 3 | Datang Sanmenxia Power Generation Co Ltd [100%] | China Datang Corp Ltd [60.0%]; Electricité de France SA [35.0%]; Sanmenxia Investment Group Co Ltd [5.0%] |
| Phase II Unit 4 | Datang Sanmenxia Power Generation Co Ltd [100%] | China Datang Corp Ltd [60.0%]; Electricité de France SA [35.0%]; Sanmenxia Investment Group Co Ltd [5.0%] |
| Phase III Unit 5 | Datang Sanmenxia Electric Power Co Ltd [100%] | China Datang Corp Ltd [65.0%]; Shaanxi Coal and Chemical Industry Co Ltd [30.0%]; Sanmenxia Investment Group Co Ltd [5.0%] |
| Phase III Unit 6 | Datang Sanmenxia Electric Power Co Ltd [100%] | China Datang Corp Ltd [65.0%]; Shaanxi Coal and Chemical Industry Co Ltd [30.0%]; Sanmenxia Investment Group Co Ltd [5.0%] |
Project-level coal details
- Coal source(s): domestic
Background
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%).[3]
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. [4]
Expansion
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%). [5]It received permit for construction from NDRC in 2010.[6] But the construction on unit 5 only began in 2015. Unit 6 was still in planning.[7]
Unit 5 began operating in January 2017. [8]
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.
Revival of unit 6
The project was listed on a provincial key projects list in early 2025[9], and an EIA public consultation was held in September 2025[10]. In June 2026, a tender for construction supervision was issued[11], and a survey and design contract was signed in July 2026[12]. A tender for preliminary design review was also issued in July 2026[13].
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
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 https://www.gem.wiki/Coal_source_methodology_for_the_Global_Coal_Plant_Tracker.
{{cite web}}: Missing or empty|title=(help) - ↑ https://news.bjx.com.cn/html/20260729/1506340.shtml.
{{cite web}}: Missing or empty|title=(help) - ↑ "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
- ↑ "2025 Henan key projects list" (PDF). Henan Provincial Government. 2025-01-19. Retrieved 2026-07-17.
{{cite web}}: CS1 maint: url-status (link) - ↑ "[河南]大唐三门峡电厂环境影响评价第一次公众参与公示". 招投标网. 2025-09-29. Retrieved 2026-07-17.
{{cite web}}: CS1 maint: url-status (link) - ↑ "大唐三门峡1×100万千瓦煤电项目施工监理招标". WeChat. 2026-06-03. Retrieved 2026-07-17.
{{cite web}}: CS1 maint: url-status (link) - ↑ "中国能建华北院签订大唐三门峡6号机1×100万千瓦煤电项目勘察设计合同". BJX. 2026-07-06. Retrieved 2026-07-17.
{{cite web}}: CS1 maint: url-status (link) - ↑ "大唐三门峡1×100万千瓦煤电项目初步设计审查服务招标". BJX. 2026-07-01. Retrieved 2026-07-17.
{{cite web}}: CS1 maint: url-status (link)
Additional data
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.
