BILATERAL POWER GRID TELEMETRY · 2000-2025
Japan vs. South Korea Electricity Grid & Nuclear Share
Head-to-head comparison of Japan (1,030 TWh, led by Natural Gas at 32.8%) and South Korea (624.7 TWh, led by Coal at 31.1%).
Japan Generation 1,030 TWh #1: Natural Gas (33%)
South Korea Generation 624.7 TWh #1: Coal (31%)
Low-Carbon Share 33% vs 40% Japan vs South Korea
Grid CO2 Intensity 477 vs 417 gCO2/kWh (Japan vs South Korea)
Japan Fuel Mix (100% = 1,030 TWh) 32.7% Low-Carbon
South Korea Fuel Mix (100% = 624.7 TWh) 40.0% Low-Carbon
Japan (Cyan) vs. South Korea (Orange) - Total Electricity Generation (TWh)
Unit: Terawatt-hours (TWh) · Source: Ember Yearly Electricity Data & U.S. EIA
Annual Generation, Clean Share & Carbon Intensity Comparison
| Year | Japan (TWh) | South Korea (TWh) | Output Ratio (A / B) | Japan Clean % | South Korea Clean % |
|---|---|---|---|---|---|
| 2025 | 1,030 | 624.7 | 1.65x | 32.7% | 40.0% |
| 2024 | 1,016.4 | 625.4 | 1.63x | 31.3% | 39.9% |
| 2023 | 1,006.7 | 617.5 | 1.63x | 29.8% | 38.8% |
| 2022 | 1,040.6 | 622.6 | 1.67x | 25.5% | 37.2% |
| 2021 | 1,034.7 | 607.8 | 1.70x | 26.0% | 33.9% |
| 2020 | 1,011 | 577.1 | 1.75x | 23.3% | 34.8% |
| 2019 | 1,047.4 | 586.8 | 1.78x | 23.1% | 30.5% |
| 2018 | 1,082.9 | 592.9 | 1.83x | 20.7% | 27.2% |
| 2017 | 1,076.9 | 576.4 | 1.87x | 17.9% | 29.6% |
| 2016 | 1,063.7 | 561 | 1.90x | 15.9% | 32.1% |
| 2015 | 1,030.1 | 547.8 | 1.88x | 15.4% | 32.9% |
| 2014 | 1,062.7 | 540.4 | 1.97x | 12.6% | 31.3% |
| 2013 | 1,087.8 | 537.2 | 2.03x | 12.4% | 27.7% |
| 2012 | 1,106.9 | 531.2 | 2.08x | 11.7% | 29.8% |
| 2011 | 1,104.2 | 518.2 | 2.13x | 25.0% | 31.3% |
| 2010 | 1,156 | 495 | 2.34x | 35.5% | 31.2% |
| 2009 | 1,114 | 452.5 | 2.46x | 33.4% | 33.7% |
| 2008 | 1,183.7 | 442.6 | 2.67x | 29.9% | 35.1% |
| 2007 | 1,180.1 | 425.4 | 2.77x | 32.3% | 34.6% |
| 2006 | 1,164.4 | 403 | 2.89x | 36.0% | 37.9% |
| 2005 | 1,153.1 | 389.5 | 2.96x | 34.3% | 38.7% |
| 2004 | 1,121.2 | 368 | 3.05x | 35.5% | 36.8% |
| 2003 | 1,092.6 | 347.8 | 3.14x | 31.3% | 38.8% |
| 2002 | 1,103.1 | 332 | 3.32x | 37.4% | 36.9% |
| 2001 | 1,083.1 | 309.9 | 3.50x | 38.7% | 37.0% |
| 2000 | 1,099.7 | 290.5 | 3.79x | 38.2% | 38.9% |