IEA country data · 2025

Japan Electricity Generation

Net electricity generation in Japan totaled 980,169 GWh in 2025 (OECD/IEA Monthly Electricity Statistics: Generation (MESGEN) net generation statistics). Rank among mapped countries: #4. Renewable share: 20.3%.

M-3 data is not available for Japan so the latest month is estimated by the IEA Secretariat. Monthly data are adjusted according to data submitted on a fiscal year basis beginning 1st of April and ending 31st of March. Annual data shown are the sum of months and may differ from publications referring to Japanese fiscal year (April-March). Since April 2017 electricity generation from biomass is reported in the coal category if it's co-fired with this fuel, and in combustible renewables if the combustion is mono-fuel. Since April 2017 coal category included coal, bituminous mixture, natural gas (other than LNG), coke-oven gas and city gas. Hydro generation includes plants with capacity of 1MW and over. Monthly electricity production data does not include trade data. Monthly reporting did not include transmission and distribution losses, therefore they are estimated by the IEA Secretariat.

Generation by fuel (2025)

Fuel / technology Generation (GWh)
Combustible Fuels 672,129
Total fossil fuels (incl. coal, oil and gas) 601,449
Natural Gas 303,560
Coal and coal products 274,597
Total of renewable energy sources 245,657
Solar 103,517

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