Mon. Apr 27th, 2026

Kashiwazaki-Kariwa Nuclear Power Plant

Kashiwazaki-Kariwa is currently the most powerful nuclear power plant in the world. The well-known Tepco (Tokyo Electric Power Company) operates it on the coast of the Sea of Japan in Niigata Prefecture.

It is currently out of service and its operator is seeking certification from Japan’s Nuclear Regulatory Authority. The reason for the shutdown is the need to improve protection and resilience during earthquakes, which are unfortunately likely in this area. After the Fukushima accident, the criteria are even stricter.

technical parameters Kashiwazaki-Kariwa Nuclear Power Plant

Country Japan
Owner TEPCO
Operator TEPCO
Construction began June 5, 1980
Commission date September 18, 1985
Units operational 5 × 1,067 MW
2 × 1,315 MW

Kashiwazaki-Kariwa Nuclear Power Plant

Kashiwazaki Kariwa-April 2011