Peak demand and reserve margin
Daily peak demand and the supply reserve at that moment.
Peak demand drops and the reserve margin jumps on public holidays (e.g. Chuseok, 24–26 Sep 2026).
Daily peak demand (120 days)
58,288 MW · 2026-09-26
Source: 전력거래소 EPSIS 일별 최대전력 기준 수급 · 공급예비율 % = 원자료 값
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| Period | MW |
|---|---|
| 2026-09-26 | 58,288 |
| 2026-09-25 | 55,706 |
| 2026-09-24 | 59,601 |
| 2026-09-23 | 70,394 |
| 2026-09-22 | 76,585 |
| 2026-09-21 | 76,817 |
| 2026-09-20 | 66,528 |
| 2026-09-19 | 67,651 |
| 2026-09-18 | 75,330 |
| 2026-09-17 | 76,071 |
| 2026-09-16 | 75,670 |
| 2026-09-15 | 75,617 |
| 2026-09-14 | 75,711 |
| 2026-09-13 | 66,087 |
| 2026-09-12 | 66,073 |
| 2026-09-11 | 73,096 |
| 2026-09-10 | 73,925 |
| 2026-09-09 | 75,716 |
| 2026-09-08 | 79,908 |
| 2026-09-07 | 79,526 |
| 2026-09-06 | 68,394 |
| 2026-09-05 | 69,312 |
| 2026-09-04 | 79,148 |
| 2026-09-03 | 85,469 |
Supply reserve margin (120 days)
56.2 % · 2026-09-26
Source: 전력거래소 EPSIS 일별 최대전력 기준 수급 · 공급예비율 % = 원자료 값
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| Period | % |
|---|---|
| 2026-09-26 | 56.2 |
| 2026-09-25 | 65.4 |
| 2026-09-24 | 52.9 |
| 2026-09-23 | 43.2 |
| 2026-09-22 | 28.1 |
| 2026-09-21 | 28.7 |
| 2026-09-20 | 41.5 |
| 2026-09-19 | 39.7 |
| 2026-09-18 | 33.5 |
| 2026-09-17 | 34.5 |
| 2026-09-16 | 34.9 |
| 2026-09-15 | 33 |
| 2026-09-14 | 31.6 |
| 2026-09-13 | 44.8 |
| 2026-09-12 | 41.9 |
| 2026-09-11 | 34.3 |
| 2026-09-10 | 36 |
| 2026-09-09 | 37.6 |
| 2026-09-08 | 26.5 |
| 2026-09-07 | 28 |
| 2026-09-06 | 43.6 |
| 2026-09-05 | 40.2 |
| 2026-09-04 | 32.7 |
| 2026-09-03 | 20.9 |