Solar energy in Iksan, South Korea
Average irradiation 3.86 kWh/m²/day · ~1127 kWh per kWp per year
Monthly solar irradiation & temperature in Iksan (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.24 | -1.0 | 54 |
| Feb | 3.08 | 0.9 | 75 |
| Mar | 4.24 | 5.2 | 103 |
| Apr | 4.99 | 11.2 | 121 |
| May | 5.44 | 17.0 | 132 |
| Jun | 4.98 | 21.7 | 121 |
| Jul | 4.49 | 25.0 | 109 |
| Aug | 4.64 | 25.8 | 113 |
| Sep | 4.16 | 20.9 | 101 |
| Oct | 3.61 | 14.5 | 88 |
| Nov | 2.50 | 7.8 | 61 |
| Dec | 1.97 | 1.1 | 48 |
Solar potential of Iksan explained
Iksan receives an average of 3.86 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 1127 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This is a solid mid-range solar resource: production is meaningful year-round, though winter output drops noticeably.
Frequently asked questions
Is solar worth it in Iksan?
With 3.86 kWh/m²/day of average irradiation, a 1 kWp system in Iksan produces roughly 1127 kWh per year. That is a good solar resource; with current panel prices most systems pay back well within their lifetime.
How much electricity would a 5 kW system produce in Iksan?
Approximately 6,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
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