Japan
power plants.
Japan has 529 power plants in our public-data catalog, totalling 223 GW of tracked generating capacity. Its grid leans on natural gas — 24% of tracked capacity (53.4 GW), with nuclear a distant second at 22.4%. The largest single plant we track is Kashiwazaki Kariwa (8,212 MW, online since 1985).
Japan electricity mix
Tracked installed capacity by fuel, from our public-data catalog. Each fuel links to its global page.
Largest plants in Japan
Frequently asked questions
Where does Japan get its electricity?
Across the 529 plants in our catalog, Japan's tracked capacity is led by natural gas at 24% (53.4 GW), then nuclear at 22.4% and oil at 19.8%. These are tracked installed-capacity shares from public datasets, not live generation.
What is the largest power plant in Japan?
The largest plant we track in Japan is Kashiwazaki Kariwa, a nuclear facility with 8,212 MW of capacity (commissioned 1985). Open nrgmap to see it on the map with 528 other Japan plants.
How many power plants does Japan have?
Our catalog tracks 529 power plants in Japan, totalling 223 GW. This is a large, representative subset built from sources like WRI, EIA and OpenStreetMap — the true national total, including the smallest installations, is higher.
Can I see Japan's power grid on a map?
Yes — open nrgmap at app.nrgmap.com and search Japan to fly to it. Every tracked plant is a marker sized by capacity and coloured by fuel, with the national fuel mix in the side panel.