According to GlobalData, nuclear power accounted for 9% of Japan’s total installed power generation capacity and 6% of total power generation in 2021. GlobalData uses proprietary data and analytics to provide a complete picture of this market in its Japan Nuclear power Analysis: Market Outlook to 2035 report. Buy the report here.

Overall, Japan’s nuclear power generation capacity declined by a CAGR of 3.49% from 2010 to 2021, to reach 31,679MW, and generation declined by a CAGR of 13.03% to reach 61,580GWh in 2021.

Installed capacity is forecast to increase by 2,653MW from 2022 to 2035, at which point nuclear power is expected to account for 7% of total installed generation capacity.

For more detailed analysis of the nuclear power sector in Japan, buy the report here.


GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.  

GlobalData’s Power Plants database provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide, while its macro indicators database provides historic and forecast power generation and generation capacity by technology as well as consumption, imports and exports for over 170 countries.