AP-1000
The AP-1000 is a Generation III+ pressurised water reactor from Westinghouse Electric Company. 6 units are operating and 2 are under construction, out of 117 on record.
Operating
6
7.5 GW gross
Under construction
2
Planned
24
Cancelled
77
0 retired
Westinghouse's passive-safety PWR and the most-proposed large reactor design in the world by unit count. Safety systems run on gravity, natural circulation and compressed gas rather than pumps, which cuts the safety-related equipment count sharply. Four units operate at Sanmen and Haiyang in China; Vogtle 3 and 4 in Georgia entered service in 2023 and 2024, seven years late and at more than double the original budget, an overrun that bankrupted Westinghouse in 2017. The Chinese localised derivative is the CAP1000.
Design
| Vendor | Westinghouse Electric Company |
|---|---|
| Reactor type | Pressurised water reactor (PWR) |
| Generation | III+ |
| Capacity range | 1110–1250 MWe gross |
| Coolant | Light water |
| Typical enrichment | 3–5% U-235 |
Where it is built
| China | 67 units, 4 operating, 2 building |
|---|---|
| United States | 20 units, 2 operating |
| United Kingdom | 6 units |
| India | 6 units |
| Poland | 6 units |
| Ukraine | 5 units |
| Bulgaria | 2 units |
| Canada | 2 units |
| Türkiye | 2 units |
| Slovakia | 1 unit |
How long it took to build
Years from construction start to grid connection, for units with both dates on record. The median across 6 finished units is 9.1 years.
| Unit | Country | Started | Connected | Years |
|---|---|---|---|---|
| Sanmen nuclear power plant 1-1 | China | 2009 | 2018 | 9.2 |
| Haiyang nuclear power plant 1-1 | China | 2009 | 2018 | 8.9 |
| Sanmen nuclear power plant 1-2 | China | 2009 | 2018 | 8.7 |
| Haiyang nuclear power plant 1-2 | China | 2010 | 2018 | 8.3 |
| Alvin W Vogtle nuclear power plant 3 | United States | 2013 | 2023 | 10.1 |
| Alvin W Vogtle nuclear power plant 4 | United States | 2013 | 2024 | 10.3 |
All AP-1000 units
| Unit | Country | Status | Gross MW | Online |
|---|---|---|---|---|
| Alvin W Vogtle nuclear power plant 3 | United States | 1,250 | 2023 | |
| Alvin W Vogtle nuclear power plant 4 | United States | 1,250 | 2024 | |
| Haiyang nuclear power plant 1-1 | China | 1,250 | 2018 | |
| Haiyang nuclear power plant 1-2 | China | 1,250 | 2019 | |
| Sanmen nuclear power plant 1-1 | China | 1,251 | 2018 | |
| Sanmen nuclear power plant 1-2 | China | 1,251 | 2018 | |
| Xudapu nuclear power plant 1-1 | China | Under construction | 1,290 | 2028 |
| Xudapu nuclear power plant 1-2 | China | Under construction | 1,290 | 2029 |
| Anhui Wuhu nuclear power plant 1-1 | China | Cancelled (inferred) | 1,250 | - |
| Anhui Wuhu nuclear power plant 1-2 | China | Cancelled (inferred) | 1,250 | - |
| Anhui Wuhu nuclear power plant 2-3 | China | Cancelled (inferred) | 1,250 | - |
| Anhui Wuhu nuclear power plant 2-4 | China | Cancelled (inferred) | 1,250 | - |
| Bellefonte nuclear power plant 3 | United States | Cancelled | 1,117 | - |
| Bellefonte nuclear power plant 4 | United States | Cancelled | 1,117 | - |
| Blue Castle nuclear power plant Original 1 | United States | Cancelled | 1,250 | - |
| Blue Castle nuclear power plant Original 2 | United States | Cancelled | 1,250 | - |
| Bohunice nuclear power plant 5 | Slovakia | Pre-construction | 1,200 | 2040 |
| Darlington nuclear power plant 5 | Canada | Cancelled | 1,200 | - |
| Darlington nuclear power plant 6 | Canada | Cancelled | 1,200 | - |
| Fuling nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Fuling nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Fuling nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Fuling nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Ganzhou nuclear power plant 1-1 | China | Cancelled (inferred) | 1,250 | - |
| Ganzhou nuclear power plant 1-2 | China | Cancelled (inferred) | 1,250 | - |
| Ganzhou nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Ganzhou nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Haixing nuclear power plant 1-1 | China | Announced | 1,250 | - |
| Haixing nuclear power plant 1-2 | China | Announced | 1,250 | - |
| Hengyang nuclear power plant 1 | China | Cancelled (inferred) | 1,000 | - |
| Hengyang nuclear power plant 2 | China | Cancelled (inferred) | 1,000 | - |
| Hengyang nuclear power plant 3 | China | Cancelled (inferred) | 1,000 | - |
| Hengyang nuclear power plant 4 | China | Cancelled (inferred) | 1,000 | - |
| Jiangxi Pengze nuclear power plant 1-1 | China | Cancelled (inferred) | 1,000 | - |
| Jiangxi Pengze nuclear power plant 1-2 | China | Cancelled (inferred) | 1,000 | - |
| Jiangxi Pengze nuclear power plant 3 | China | Cancelled (inferred) | 1,000 | - |
| Jiangxi Pengze nuclear power plant 4 | China | Cancelled (inferred) | 1,000 | - |
| Jieyang nuclear power plant 1-1 | China | Cancelled (inferred) | 1,250 | - |
| Jieyang nuclear power plant 1-2 | China | Cancelled (inferred) | 1,250 | - |
| Jingyu Chisong nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Jingyu Chisong nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Jingyu Chisong nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Jingyu Chisong nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Khmelnitski nuclear power plant 5 | Ukraine | Pre-construction | 1,250 | 2032 |
| Khmelnitski nuclear power plant 6 | Ukraine | Pre-construction | 1,250 | 2032 |
| Kovvada nuclear power plant 1 | India | Announced | 1,250 | - |
| Kovvada nuclear power plant 2 | India | Announced | 1,250 | - |
| Kovvada nuclear power plant 3 | India | Announced | 1,250 | - |
| Kovvada nuclear power plant 4 | India | Announced | 1,250 | - |
| Kovvada nuclear power plant 5 | India | Announced | 1,250 | - |
| Kovvada nuclear power plant 6 | India | Announced | 1,250 | - |
| Kozloduy nuclear power plant 7 | Bulgaria | Pre-construction | 1,000 | 2035 |
| Kozloduy nuclear power plant 8 | Bulgaria | Pre-construction | 1,000 | 2037 |
| Levy County nuclear power plant 1 | United States | Cancelled | 1,250 | - |
| Levy County nuclear power plant 2 | United States | Cancelled | 1,250 | - |
| Lubiatowo-Kopalino nuclear power plant 1 | Poland | Pre-construction | 1,250 | 2036 |
| Lubiatowo-Kopalino nuclear power plant 2 | Poland | Pre-construction | 1,250 | 2037 |
| Lubiatowo-Kopalino nuclear power plant 3 | Poland | Pre-construction | 1,250 | 2038 |
| Moorside nuclear power plant 1 | United Kingdom | Cancelled | 1,135 | - |
| Moorside nuclear power plant 2 | United Kingdom | Cancelled | 1,135 | - |
| Moorside nuclear power plant 3 | United Kingdom | Cancelled | 1,135 | - |
| Nanyang nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Oldbury nuclear power plant B1 | United Kingdom | Cancelled | 1,100 | - |
| Oldbury nuclear power plant B2 | United Kingdom | Cancelled | 1,100 | - |
| Oldbury nuclear power plant B3 | United Kingdom | Cancelled | 1,100 | - |
| Pingnan Baisha nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Pingnan Baisha nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Pingnan Baisha nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Pingnan Baisha nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Project Matador nuclear power plant 1 | United States | Pre-construction | 1,100 | 2032 |
| Project Matador nuclear power plant 2 | United States | Pre-construction | 1,100 | 2034 |
| Project Matador nuclear power plant 3 | United States | Pre-construction | 1,100 | 2035 |
| Project Matador nuclear power plant 4 | United States | Pre-construction | 1,100 | 2036 |
| Rivne nuclear power plant 5 | Ukraine | Shelved (inferred) | 1,250 | - |
| Shearon Harris nuclear power plant 2A | United States | Cancelled | 1,100 | - |
| Shearon Harris nuclear power plant 3A | United States | Cancelled | 1,100 | - |
| South Ukraine nuclear power plant 4 | Ukraine | Shelved (inferred) | 1,250 | - |
| South Ukraine nuclear power plant 5 | Ukraine | Shelved (inferred) | 1,250 | - |
| Taohuajiang nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Taohuajiang nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Taohuajiang nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Taohuajiang nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Turkey Point nuclear power station 6 | United States | Pre-construction | 1,250 | 2036 |
| Turkey Point nuclear power station 7 | United States | Pre-construction | 1,250 | 2036 |
| Virgil C Summer nuclear power plant 2 | United States | Mothballed | 1,117 | - |
| Virgil C Summer nuclear power plant 3 | United States | Mothballed | 1,117 | - |
| William States Lee III nuclear power plant 1 | United States | Cancelled | 1,117 | - |
| William States Lee III nuclear power plant 2 | United States | Cancelled | 1,117 | - |
| Xiajiang nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Xiajiang nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Xiajiang nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Xiajiang nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Xiangtan nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Xiangtan nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Xiangtan nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Xiangtan nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Xianning Dafan nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Xianning Dafan nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Xiaomoshan nuclear power plant 1 | China | Cancelled (inferred) | 1,250 | - |
| Xiaomoshan nuclear power plant 2 | China | Cancelled (inferred) | 1,250 | - |
| Xiaomoshan nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Xiaomoshan nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| Xishui nuclear power plant 1-1 | China | Cancelled (inferred) | 1,250 | - |
| Xishui nuclear power plant 1-2 | China | Cancelled (inferred) | 1,250 | - |
| Zarnowiec nuclear power plant 1 | Poland | Shelved | 1,250 | - |
| Zarnowiec nuclear power plant 2 | Poland | Shelved | 1,250 | - |
| Zarnowiec nuclear power plant 3 | Poland | Shelved | 1,250 | - |
| Zhaoqing nuclear power plant 1 | China | Cancelled (inferred) | 1,750 | - |
| Zhaoqing nuclear power plant 2 | China | Cancelled (inferred) | 1,750 | - |
| Zhaoqing nuclear power plant 3 | China | Cancelled (inferred) | 1,750 | - |
| Zhaoqing nuclear power plant 4 | China | Cancelled (inferred) | 1,750 | - |
| Zhongxiang nuclear power plant 1-1 | China | Cancelled (inferred) | 1,250 | - |
| Zhongxiang nuclear power plant 1-2 | China | Cancelled (inferred) | 1,250 | - |
| Zhongxiang nuclear power plant 3 | China | Cancelled (inferred) | 1,250 | - |
| Zhongxiang nuclear power plant 4 | China | Cancelled (inferred) | 1,250 | - |
| İğneada nuclear power plant 1 | Türkiye | Announced | 1,250 | - |
| İğneada nuclear power plant 2 | Türkiye | Announced | 1,250 | - |
Sources
- AP-1000, vendor documentation
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data