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Data as of 2025
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Built 2026-09-19 (19 September 2026)

Japan Electricity History, 1985 to 2025

Japan generated 672 TWh of electricity in 1985 and 1,030 TWh in 2025. Japan's electricity demand peaked at 1,184 TWh in 2008. The carbon intensity of Japan's electricity went from 421 gCO2/kWh in 1985 to 477 gCO2/kWh in 2025. Figures are Ember annual statistics; Ember's series for Japan starts in 1985.

Key Facts

  • Japan generated 672 TWh of electricity in 1985 and 1,030 TWh in 2025.
  • Japan's electricity demand peaked at 1,184 TWh in 2008.
  • The carbon intensity of Japan's electricity went from 421 gCO2/kWh in 1985 to 477 gCO2/kWh in 2025.
  • Japan's lowest carbon intensity on record was 404 gCO2/kWh, in 1998.
  • Other fossil's share of Japan's electricity went from 27.7% in 1985 to 2.5% in 2025, the largest change of any source.

Generation and Demand

1985 to 2025, TWh
Japan electricity generation and demand, 1985 to 2025 Japan generated 672 TWh of electricity in 1985 and 1,030 TWh in 2025. 0 300 600 900 1,200 198519901995200020052010201520202025
Japan generated 672 TWh of electricity in 1985 and 1,030 TWh in 2025.
Annual statistics through 2025, TWh
Japan electricity generation and demand, 1985 to 2025
YearGenerationDemand
1985672 TWh672 TWh
1986676 TWh676 TWh
1987719 TWh719 TWh
1988754 TWh754 TWh
1989800 TWh800 TWh
1990881 TWh881 TWh
1991911 TWh911 TWh
1992917 TWh917 TWh
1993926 TWh926 TWh
1994984 TWh984 TWh
19951,011 TWh1,011 TWh
19961,030 TWh1,030 TWh
19971,055 TWh1,055 TWh
19981,060 TWh1,060 TWh
19991,079 TWh1,079 TWh
20001,100 TWh1,100 TWh
20011,083 TWh1,083 TWh
20021,103 TWh1,103 TWh
20031,093 TWh1,093 TWh
20041,121 TWh1,121 TWh
20051,153 TWh1,153 TWh
20061,164 TWh1,164 TWh
20071,180 TWh1,180 TWh
20081,184 TWh1,184 TWh
20091,114 TWh1,114 TWh
20101,156 TWh1,156 TWh
20111,104 TWh1,104 TWh
20121,107 TWh1,107 TWh
20131,088 TWh1,088 TWh
20141,063 TWh1,063 TWh
20151,030 TWh1,030 TWh
20161,064 TWh1,064 TWh
20171,077 TWh1,077 TWh
20181,083 TWh1,083 TWh
20191,047 TWh1,047 TWh
20201,011 TWh1,011 TWh
20211,035 TWh1,035 TWh
20221,041 TWh1,041 TWh
20231,007 TWh1,007 TWh
20241,016 TWh1,016 TWh
20251,030 TWh1,030 TWh

Carbon Intensity

gCO2 per kWh generated
Japan carbon intensity of electricity, 1985 to 2025 The carbon intensity of Japan's electricity went from 421 gCO2/kWh in 1985 to 477 gCO2/kWh in 2025. 0 150 300 450 600 198519901995200020052010201520202025
The carbon intensity of Japan's electricity went from 421 gCO2/kWh in 1985 to 477 gCO2/kWh in 2025.
Annual statistics through 2025
Japan carbon intensity of electricity, 1985 to 2025
YearCarbon intensity
1985421 gCO2/kWh
1986417 gCO2/kWh
1987417 gCO2/kWh
1988427 gCO2/kWh
1989429 gCO2/kWh
1990447 gCO2/kWh
1991438 gCO2/kWh
1992445 gCO2/kWh
1993419 gCO2/kWh
1994444 gCO2/kWh
1995424 gCO2/kWh
1996423 gCO2/kWh
1997408 gCO2/kWh
1998404 gCO2/kWh
1999419 gCO2/kWh
2000424 gCO2/kWh
2001424 gCO2/kWh
2002434 gCO2/kWh
2003476 gCO2/kWh
2004450 gCO2/kWh
2005462 gCO2/kWh
2006447 gCO2/kWh
2007470 gCO2/kWh
2008485 gCO2/kWh
2009460 gCO2/kWh
2010447 gCO2/kWh
2011505 gCO2/kWh
2012595 gCO2/kWh
2013596 gCO2/kWh
2014592 gCO2/kWh
2015578 gCO2/kWh
2016567 gCO2/kWh
2017558 gCO2/kWh
2018542 gCO2/kWh
2019529 gCO2/kWh
2020528 gCO2/kWh
2021515 gCO2/kWh
2022520 gCO2/kWh
2023493 gCO2/kWh
2024484 gCO2/kWh
2025477 gCO2/kWh

Every Year

YearGenerationDemandNet importsCarbon intensityLow carbon share
2025 1,030 TWh 1,030 TWh 0 TWh 477 gCO2/kWh 32.7%
2024 1,016 TWh 1,016 TWh 0 TWh 484 gCO2/kWh 31.3%
2023 1,007 TWh 1,007 TWh 0 TWh 493 gCO2/kWh 29.8%
2022 1,041 TWh 1,041 TWh 0 TWh 520 gCO2/kWh 25.5%
2021 1,035 TWh 1,035 TWh 0 TWh 515 gCO2/kWh 26.0%
2020 1,011 TWh 1,011 TWh 0 TWh 528 gCO2/kWh 23.3%
2019 1,047 TWh 1,047 TWh 0 TWh 529 gCO2/kWh 23.1%
2018 1,083 TWh 1,083 TWh 0 TWh 542 gCO2/kWh 20.7%
2017 1,077 TWh 1,077 TWh 0 TWh 558 gCO2/kWh 17.9%
2016 1,064 TWh 1,064 TWh 0 TWh 567 gCO2/kWh 15.9%
2015 1,030 TWh 1,030 TWh 0 TWh 578 gCO2/kWh 15.4%
2014 1,063 TWh 1,063 TWh 0 TWh 592 gCO2/kWh 12.6%
2013 1,088 TWh 1,088 TWh 0 TWh 596 gCO2/kWh 12.4%
2012 1,107 TWh 1,107 TWh 0 TWh 595 gCO2/kWh 11.7%
2011 1,104 TWh 1,104 TWh 0 TWh 505 gCO2/kWh 25.0%
2010 1,156 TWh 1,156 TWh 0 TWh 447 gCO2/kWh 35.5%
2009 1,114 TWh 1,114 TWh 0 TWh 460 gCO2/kWh 33.4%
2008 1,184 TWh 1,184 TWh 0 TWh 485 gCO2/kWh 29.9%
2007 1,180 TWh 1,180 TWh 0 TWh 470 gCO2/kWh 32.3%
2006 1,164 TWh 1,164 TWh 0 TWh 447 gCO2/kWh 36.0%
2005 1,153 TWh 1,153 TWh 0 TWh 462 gCO2/kWh 34.3%
2004 1,121 TWh 1,121 TWh 0 TWh 450 gCO2/kWh 35.5%
2003 1,093 TWh 1,093 TWh 0 TWh 476 gCO2/kWh 31.3%
2002 1,103 TWh 1,103 TWh 0 TWh 434 gCO2/kWh 37.4%
2001 1,083 TWh 1,083 TWh 0 TWh 424 gCO2/kWh 38.7%
2000 1,100 TWh 1,100 TWh 0 TWh 424 gCO2/kWh 38.2%
1999 1,079 TWh 1,079 TWh n/a 419 gCO2/kWh 38.7%
1998 1,060 TWh 1,060 TWh n/a 404 gCO2/kWh 40.7%
1997 1,055 TWh 1,055 TWh n/a 408 gCO2/kWh 40.2%
1996 1,030 TWh 1,030 TWh n/a 423 gCO2/kWh 37.8%
1995 1,011 TWh 1,011 TWh n/a 424 gCO2/kWh 37.6%
1994 984 TWh 984 TWh n/a 444 gCO2/kWh 34.2%
1993 926 TWh 926 TWh n/a 419 gCO2/kWh 38.0%
1992 917 TWh 917 TWh n/a 445 gCO2/kWh 33.7%
1991 911 TWh 911 TWh n/a 438 gCO2/kWh 34.5%
1990 881 TWh 881 TWh n/a 447 gCO2/kWh 33.2%
1989 800 TWh 800 TWh n/a 429 gCO2/kWh 36.8%
1988 754 TWh 754 TWh n/a 427 gCO2/kWh 37.2%
1987 719 TWh 719 TWh n/a 417 gCO2/kWh 38.7%
1986 676 TWh 676 TWh n/a 417 gCO2/kWh 38.4%
1985 672 TWh 672 TWh n/a 421 gCO2/kWh 38.0%

Share of Generation by Source

Percent of total generation
YearCoalGasOther fossilNuclearHydroWindSolarBioenergy
202532.1%32.8%2.5%9.1%7.2%1.3%9.8%5.3%
202432.2%34.1%2.5%8.4%7.8%1.1%9.5%4.5%
202332.5%34.5%3.2%7.7%7.4%1.0%9.6%4.2%
202233.7%36.4%4.4%5.0%7.2%0.9%8.8%3.6%
202133.7%37.3%3.0%5.9%7.7%0.9%8.1%3.4%
202033.7%40.5%2.5%4.3%7.8%0.8%7.5%3.0%
201933.5%39.8%3.6%6.3%7.1%0.7%6.4%2.6%
201833.3%41.2%4.8%4.5%7.5%0.7%5.7%2.4%
201733.8%43.1%5.3%2.7%7.4%0.6%5.0%2.2%
201631.8%43.1%9.1%1.7%7.5%0.5%4.1%2.2%
201533.9%40.5%10.1%0.4%8.3%0.5%3.4%2.8%
201433.5%42.4%11.5%0.0%7.7%0.5%2.2%2.2%
201333.3%38.9%15.3%1.3%7.3%0.5%1.2%2.1%
201230.2%39.3%18.8%1.6%7.0%0.4%0.7%2.0%
201125.8%34.4%14.8%14.8%7.5%0.4%0.5%1.9%
201027.4%28.2%8.9%25.3%7.7%0.3%0.3%1.9%
200928.0%29.2%9.5%24.7%6.3%0.3%0.3%1.8%
200828.2%27.4%14.5%21.3%6.4%0.3%0.2%1.8%
200726.9%25.2%15.7%23.6%6.3%0.2%0.2%1.9%
200626.7%24.1%13.2%26.1%7.6%0.2%0.2%1.9%
200527.7%22.0%16.0%25.4%6.7%0.2%0.1%1.9%
200426.4%23.0%15.1%25.5%8.2%0.1%0.1%1.6%
200326.7%25.0%17.0%21.1%8.5%0.1%0.1%1.6%
200224.0%22.9%15.7%28.5%7.3%0.0%0.1%1.5%
200123.4%23.7%14.2%29.6%7.5%0.0%0.1%1.5%
200021.7%23.5%16.6%29.0%7.7%0.0%0.0%1.5%
199920.0%23.1%18.2%29.4%7.8%0.0%0.0%1.5%
199818.5%22.2%18.6%30.8%8.4%0.0%0.0%1.5%
199718.2%21.3%20.3%30.4%8.2%0.0%0.0%1.6%
199617.7%21.1%23.5%28.8%7.5%0.0%0.0%1.5%
199517.0%20.3%25.1%28.4%7.8%0.0%0.0%1.4%
199416.2%20.6%29.1%26.2%6.6%0.0%0.0%1.4%
199315.5%20.1%26.4%26.8%10.0%0.0%0.0%1.3%
199214.6%20.4%31.3%23.7%8.7%0.0%0.0%1.3%
199114.0%20.6%30.8%22.9%10.4%0.0%0.0%1.3%
199013.7%19.9%33.1%22.1%9.9%0.0%0.0%1.3%
198914.8%19.0%29.4%23.2%11.5%0.0%0.0%2.1%
198815.1%19.1%28.7%23.1%12.0%0.0%0.0%2.1%
198715.2%19.1%27.1%26.2%10.4%0.0%0.0%2.1%
198614.8%19.6%27.1%24.5%12.0%0.0%0.0%2.0%
198515.0%19.3%27.7%23.8%12.3%0.0%0.0%1.9%

Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025.