SMP by hour of day
When in the day the wholesale price is cheap or expensive — hourly averages for the latest month, and the latest day.
SMP by hour — mainland and Jeju (latest month)
| Period | Mainland(KRW/kWh) | Jeju(KRW/kWh) |
|---|---|---|
| 24 | 111.64 | 111.64 |
| 23 | 112.86 | 112.86 |
| 22 | 115.06 | 115.06 |
| 21 | 116.41 | 116.41 |
| 20 | 118.15 | 118.15 |
| 19 | 119.27 | 119.27 |
| 18 | 117.14 | 117.14 |
| 17 | 115.54 | 115.54 |
| 16 | 111.4 | 111.4 |
| 15 | 110.78 | 107.37 |
| 14 | 110.73 | 83.31 |
| 13 | 107.11 | 80.68 |
| 12 | 110.26 | 99.98 |
| 11 | 110.63 | 107.21 |
| 10 | 107.03 | 107.03 |
| 9 | 107.34 | 107.34 |
| 8 | 107.82 | 107.82 |
| 7 | 106.38 | 106.38 |
| 6 | 102.39 | 102.39 |
| 5 | 99.6 | 99.6 |
| 4 | 98.61 | 98.61 |
| 3 | 99.44 | 99.44 |
| 2 | 100.6 | 100.6 |
| 1 | 105.51 | 105.51 |
24 values from 1h to 24h. First 105.51, last 111.64 KRW/kWh: up +6%. Highest in 19h (119.27), lowest in 4h (98.61).
Source: Computed (simple mean) from smp-hourly through 2026-06 and from the KPX, SMP and demand forecast (day-ahead scheduling) OpenAPI (data.go.kr 15131225) from 2026-07. Processed by Renuary; not an official KPX interpretation. · Chart: Renuary · retrieved 2026-11-01
- Unit
- KRW/kWh
- Period
- 2017-01–2026-10
- Updates
- Monthly (KPX OpenAPI from 2026-07, refreshed once a month) · retrieved 2026-11-01
- Source
- Computed (simple mean) from smp-hourly through 2026-06 and from the KPX, SMP and demand forecast (day-ahead scheduling) OpenAPI (data.go.kr 15131225) from 2026-07. Processed by Renuary; not an official KPX interpretation.
- Processing
- Computed. Only months with every day present. The day/night split is set by the site.
- Download
- CSV
Mainland SMP by hour (latest day)
| Period | KRW/kWh |
|---|---|
| 24 | 118.95 |
| 23 | 124.93 |
| 22 | 124.93 |
| 21 | 163.82 |
| 20 | 164.34 |
| 19 | 164.71 |
| 18 | 164.71 |
| 17 | 165.22 |
| 16 | 164.71 |
| 15 | 165.14 |
| 14 | 164.71 |
| 13 | 164.49 |
| 12 | 165.22 |
| 11 | 165.22 |
| 10 | 165.37 |
| 9 | 165.27 |
| 8 | 124.93 |
| 7 | 113.91 |
| 6 | 113.51 |
| 5 | 102.33 |
| 4 | 100.88 |
| 3 | 102.33 |
| 2 | 102.33 |
| 1 | 107.14 |
Of 24 items, the highest is 10h (165.37 KRW/kWh) and the lowest is 4h (100.88 KRW/kWh).
Source: KPX, SMP and demand forecast (day-ahead scheduling) OpenAPI (data.go.kr 15131225). Processed by Renuary; not an official KPX interpretation. · Chart: Renuary · retrieved 2026-11-11
- Unit
- KRW/kWh
- Period
- 최근 하루
- Updates
- Daily (KPX OpenAPI, as refreshed by energy-lab) · retrieved 2026-11-11
- Source
- KPX, SMP and demand forecast (day-ahead scheduling) OpenAPI (data.go.kr 15131225). Processed by Renuary; not an official KPX interpretation.
- Processing
- The latest day with all 48 rows (mainland and Jeju, 24 hours). hour_ending 1 = 00:00–01:00. Day-ahead prices, published around 23:00 the day before. Values as served by the API.
- Download
- CSV
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