Carbon intensity of electricity — all countries

Carbon intensity of electricity — Japan

Carbon intensity of electricity in Japan in 2025 — 477 g/kWh. Ranked 58 in the world out of 91. Since 2000, the indicator has risen by 12.5%.

2025 477 g/kWh −1.28% vs 2024
World rank 58of 91
Period maximum 596 g/kWh2013
Period minimum 424 g/kWh2001

Trend over time

2000–2025 · grams CO₂ per kWh

Carbon intensity of electricity — Japan, 2000–20254004505005506002000200320062009201220152018202120242000: 424 g/kWh2001: 424 g/kWh2002: 434 g/kWh2003: 476 g/kWh2004: 450 g/kWh2005: 462 g/kWh2006: 447 g/kWh2007: 470 g/kWh2008: 485 g/kWh2009: 460 g/kWh2010: 447 g/kWh2011: 505 g/kWh2012: 595 g/kWh2013: 596 g/kWh2014: 592 g/kWh2015: 578 g/kWh2016: 567 g/kWh2017: 558 g/kWh2018: 542 g/kWh2019: 529 g/kWh2020: 528 g/kWh2021: 515 g/kWh2022: 520 g/kWh2023: 493 g/kWh2024: 484 g/kWh2025: 477 g/kWh
Change over the period: +53 (+12.47%) Average annual rate: 0.47 %

Comparison, 2025

How the value compares with the world and the groups this territory belongs to: Japan

Japan 477 g/kWh
Eastern Asia computed 519 g/kWh
Carbon intensity of electricity — Japan, by year Japan All countries CSV XLSX
Year g/kWh Change Change, %
2025 477 −6 −1.28%
2024 484 −9 −1.83%
2023 493 −27 −5.21%
2022 520 +5 +0.99%
2021 515 −13 −2.51%
2020 528 −1 −0.14%
2019 529 −13 −2.4%
2018 542 −17 −2.97%
2017 558 −9 −1.58%
2016 567 −11 −1.91%
2015 578 −13 −2.28%
2014 592 −4 −0.74%
2013 596 +1 +0.23%
2012 595 +89 +17.65%
2011 505 +59 +13.13%
2010 447 −14 −2.94%
2009 460 −25 −5.15%
2008 485 +15 +3.2%
2007 470 +23 +5.13%
2006 447 −15 −3.15%
2005 462 +12 +2.56%
2004 450 −26 −5.47%
2003 476 +43 +9.82%
2002 434 +10 +2.3%
2001 424 −0 −0.09%
2000 424

Eastern Asia, 2025

The same indicator for neighboring countries — with links to their pages

About the indicator

Carbon dioxide emissions from the power sector per kilowatt-hour of generation. A single number into which the whole structure of generation folds: a coal plant gives about 820 grams per kilowatt-hour, a gas plant roughly 490, and nuclear, wind and solar single digits. The indicator therefore reads as a summary verdict on a power system and is especially useful for comparing countries with different generation mixes: one may have a lot of hydro and another nuclear, yet the result comes out close.

Important: Emissions from generating electricity are counted, without emissions from building the plants and extracting the fuel. Aggregates are weighted by generation and computed from 2000 onward.

Source: Yearly Electricity Data (Ember), license CC BY 4.0.