KEPCOKPI data tables
KEPCO operating metrics behind the KPI charts, newest period first (up to 24 periods per chart). Periods use each company's own fiscal labels where the source does; each table names its source.
| Period | Uranium | Bituminous coal | LNG | Anthracite coal | Oil |
|---|---|---|---|---|---|
| FY 2025 | 48.7 | 37 | 9.9 | 0.4 | 0.1 |
| FY 2024 | 48.1 | 35.4 | 11.9 | 0.5 | 0 |
| FY 2023 | 46.1 | 38 | 12 | 0.5 | 0.02 |
Source: Korea Electric Power Corporation Form 20-F for the year ended 31 December 2025, filed 29 April 2026, Acc 0001193125-26-190113, Item 4 Fuel Sources and Requirements. Uranium 46.1% / 48.1% / 48.7% in 2023 / 2024 / 2025. Bituminous coal 38.0% / 35.4% / 37.0%. Anthracite coal 0.5% / 0.5% / 0.4%. Oil 0.02% / 0.0% / 0.1%. LNG 12.0% / 11.9% / 9.9%. https://www.sec.gov/Archives/edgar/data/887225/000119312526190113/d86100d20f.htm
| Period | Nuclear | Coal | Combined-cycle | Printed remainder (other KEPCO and subsidiary fuels) |
|---|---|---|---|---|
| FY 2025 | 184,693 | 141,898 | 37,671 | 15,331 |
| FY 2024 | 188,754 | 140,805 | 45,960 | 16,917 |
| FY 2023 | 180,494 | 150,855 | 45,949 | 14,272 |
| FY 2022 | 176,054 | 164,271 | 52,243 | 15,873 |
| FY 2021 | 158,015 | 172,419 | 53,609 | 16,330 |
Source: Korea Electric Power Corporation Form 20-F for the year ended 31 December 2025, filed 29 April 2026, Acc 0001193125-26-190113, Item 4 electricity generated by us and our generation subsidiaries (GWh). Nuclear 158,015 / 176,054 / 180,494 / 188,754 / 184,693. Coal 172,419 / 164,271 / 150,855 / 140,805 / 141,898. Combined-cycle 53,609 / 52,243 / 45,949 / 45,960 / 37,671. Total generation by us and our generation subsidiaries 400,373 / 408,441 / 391,570 / 392,436 / 379,593. https://www.sec.gov/Archives/edgar/data/887225/000119312526190113/d86100d20f.htm
| Period | Nuclear capacity factor (KHNP utilization) |
|---|---|
| FY 2025 | 84.6 |
| FY 2024 | 83.8 |
| FY 2023 | 81.8 |
| FY 2022 | 81.6 |
| FY 2021 | 74.5 |
| FY 2020 | 75.3 |
| FY 2019 | 70.6 |
| FY 2018 | 65.9 |
| FY 2017 | 71.2 |
| FY 2016 | 79.7 |
Source: KHNP Open Nuclear Power Plant Information, utilization and availability table (2007-2025). 2025 utilization 84.6% and availability 83.3%: https://npp.khnp.co.kr/ON004004002001003. 2021-2025 utilization 74.5 / 81.6 / 81.8 / 83.8 / 84.6. Cross-check: KEPCO Form 20-F year ended 31 December 2025, filed 29 April 2026, Acc 0001193125-26-190113, nuclear average capacity factor 84.6% on 26 units and 26,050 MW. https://www.sec.gov/Archives/edgar/data/887225/000119312526190113/d86100d20f.htm
| Period | Nuclear generation (KEPCO and subsidiaries) |
|---|---|
| FY 2025 | 184.693 |
| FY 2024 | 188.754 |
| FY 2023 | 180.494 |
| FY 2022 | 176.054 |
| FY 2021 | 158.015 |
Source: Korea Electric Power Corporation Form 20-F for the year ended 31 December 2025, filed 29 April 2026, Acc 0001193125-26-190113, Item 4 table of electricity generated by facilities linked to the grid. Nuclear line, in GWh: 2021 158,015; 2022 176,054; 2023 180,494; 2024 188,754; 2025 184,693 (31.0% of 2025 gross generation). https://www.sec.gov/Archives/edgar/data/887225/000119312526190113/d86100d20f.htm