Nuclear reactors supplied by Nuclear Power Corporation of India
Nuclear Power Corporation of India is recorded as the nuclear steam supply system (NSSS) supplier of 22 units in 1 country, per the IAEA PRIS register: 19 operating with 5,696 MWe net and 3 under construction.
Operator and designer of India's pressurized heavy water line, from the IPHWR-220 to the IPHWR-700. By country: India (22). By technology: 22 PHWR. The first unit was connected in 1983 and the most recent in 2025. The most powerful unit in operation is Kakrapar 3, in India, with 630 MWe. 3 units are under construction: Rajasthan 8 (India), Kaiga 5 (India) and Kaiga 6 (India).
PRIS supplier codes: NPCIL · Reference · Names per IAEA, Nuclear Power Reactors in the World 2025, table 25
Units with a Nuclear Power Corporation of India nuclear steam supply system
| Unit | Country | Type | Model | MWe | Grid connection | Status |
|---|---|---|---|---|---|---|
| Madras 1 |  India | PHWR | IPHWR-220 | 205 | 1983 | Operation suspended |
| Madras 2 | India | PHWR | IPHWR-220 | 205 | 1985 | Operating |
| Narora 1 | India | PHWR | IPHWR-220 | 202 | 1989 | Operating |
| Kakrapar 1 | India | PHWR | IPHWR-220 | 202 | 1992 | Operating |
| Narora 2 | India | PHWR | IPHWR-220 | 202 | 1992 | Operating |
| Kakrapar 2 | India | PHWR | IPHWR-220 | 202 | 1995 | Operating |
| Kaiga 2 | India | PHWR | IPHWR-220 | 202 | 1999 | Operating |
| Kaiga 1 | India | PHWR | IPHWR-220 | 202 | 2000 | Operation suspended |
| Rajasthan 3 | India | PHWR | IPHWR-220 | 202 | 2000 | Operating |
| Rajasthan 4 | India | PHWR | IPHWR-220 | 202 | 2000 | Operating |
| Tarapur 4 | India | PHWR | IPHWR-540 | 490 | 2005 | Operating |
| Tarapur 3 | India | PHWR | IPHWR-540 | 482 | 2006 | Operating |
| Kaiga 3 | India | PHWR | IPHWR-220 | 202 | 2007 | Operating |
| Rajasthan 5 | India | PHWR | IPHWR-220 | 202 | 2009 | Operating |
| Rajasthan 6 | India | PHWR | IPHWR-220 | 202 | 2010 | Operating |
| Kaiga 4 | India | PHWR | IPHWR-220 | 202 | 2011 | Operating |
| Kakrapar 3 | India | PHWR | IPHWR-700 | 630 | 2021 | Operating |
| Kakrapar 4 | India | PHWR | IPHWR-700 | 630 | 2024 | Operating |
| Rajasthan 7 | India | PHWR | IPHWR-700 | 630 | 2025 | Operating |
| Rajasthan 8 | India | PHWR | IPHWR-700 | 630 | 2026 | Under construction |
| Kaiga 5 | India | PHWR | IPHWR-700 | 630 | 2031 | Under construction |
| Kaiga 6 | India | PHWR | IPHWR-700 | 630 | 2031 | Under construction |
Data: Global Energy Monitor (CC BY 4.0), IAEA PRIS 2025, Wikipedia (CC BY-SA), Wikidata and Wikimedia Commons. Capacities in net MWe unless stated.
Other vendors
Westinghouse · Framatome · General Electric · Rosatom (Atomenergomash, Atomstroyexport) · Atomenergoexport (USSR) · China First Heavy Industries · Siemens / Kraftwerk Union · Atomic Energy of Canada Limited · Vendors