Asia · country explainer · estimated data

South Korea's power sector in numbers

Ember monthly data 2019-01 → 2026-04 · generation-weighted · CC-BY-4.0

Carbon intensity · 2026-04

379gCO₂e/kWh

#46 cleanest of 80 tracked (2025)

Renewables share

12.7%

clean incl. nuclear: 43.6%

Records

Cleanest: 332 (2025-04)

Dirtiest: 528 (2019-09)

The trend, year by year

YeargCO₂e/kWhΔRenewables %Generation TWh
2025 403 +2 9.8 590.5
2024 401 -18 9.1 591
2023 419 -12 8.5 584.4
2022 431 -24 7.7 590.5
2021 455 -1 6.4 572.8
2020 456 -36 5.6 548.7
2019 492 4.5 557.6

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Source: "Monthly electricity data, Ember" (CC-BY-4.0). Yearly figures are generation-weighted (Σ emissions ÷ Σ generation, complete years only). Monthly statistical data — estimated, not live measurement. Cite as "Voltcast Research, voltcast.com/research/countries/kr".