Climate Integrate
VISUALSJuly 30, 2025

Share of nuclear in total electricity generation (Climate Integrate scenarios)

Share of nuclear in total electricity generation (Climate Integrate scenarios)

Even if the existing reactors are restarted or lifetimes extended, nuclear is still likely to peak at 7–15% of Japan’s electricity mix, then decline rapidly. Reaching the government’s target of 20% appears to be unlikely.

Related pages:
Fact sheet on Japan’s climate and energy policies