Japan

Kashiwazaki Kariwa — 8,212 MW Nuclear

Nuclear Verified

Kashiwazaki Kariwa is a 8,212 MW nuclear power plant located in Japan. View location, capacity, and technical details.

Capacity
8,212 MW

Installed

Commissioned
1985

Year online

Owner
Tokyo Electric Power Company

Operator

Location
37.43, 138.59

Coordinates

Insights

#1
largest in Japan
#2
largest Nuclear worldwide
#17
largest worldwide
1985
3 yrs older than avg
38
operated by Tokyo Electric Power…
28
plants within 100 km

Technical Details

Fuel Type
Nuclear
Capacity
8,212 MW
Commissioned
1985
Status
Operational
Owner
Tokyo Electric Power Company
Country
Japan
Coordinates
37.426, 138.594
Wikipedia
Link

Carbon Footprint

Annual CO₂
733,759 t

tonnes / year

Lifetime CO₂
36,687,931 t

over ~50 yrs

Intensity
12 g

Est. gCO2/kWh

Annual emissions equivalent to

159,513
cars per year
97,834
homes per year
33,352,665
trees to offset

Indicative estimate from standard life-cycle emission and capacity factors — not a measured figure. Open calculator

Nearby Plants

About this plant

Kashiwazaki Kariwa Nuclear Power Plant, located in Japan, is one of the largest nuclear facilities in the world, boasting a remarkable capacity of 8,212 MW. Commissioned in 1985 and operated by the Tokyo Electric Power Company, this facility is situated at coordinates 37.4259, 138.5941 in Niigata Prefecture. As a pivotal component of Japan’s energy generation infrastructure, Kashiwazaki Kariwa plays a critical role in meeting the country’s energy needs, particularly in the wake of increasing demand and the transition towards low-carbon energy solutions. The plant employs advanced nuclear technology, with seven boiling water reactor (BWR) units, including two advanced boiling water reactors (ABWR); the units have been offline since 2011–2012, and restart reviews for the newest units have been underway in recent years. In the context of Japan’s energy policy, which has evolved significantly since the Fukushima disaster in 2011, the Kashiwazaki Kariwa facility represents both challenges and opportunities. The government has aimed to revitalize the nuclear sector while addressing safety and environmental concerns, and this power plant is central to that narrative. Its location along the Sea of Japan positions it strategically to serve the local grid while contributing to national energy security. The operational context of Kashiwazaki Kariwa is further defined by ongoing safety upgrades and regulatory compliance, ensuring that the facility operates at the highest standards. As Japan continues to grapple with energy diversification, the Kashiwazaki Kariwa Nuclear Power Plant remains a significant asset in its pursuit of a stable, sustainable, and low-emission energy future.

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