Solar energy in Busan, South Korea
Average irradiation 3.89 kWh/m²/day · ~1136 kWh per kWp per year
Monthly solar irradiation & temperature in Busan (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.57 | 2.2 | 62 |
| Feb | 3.17 | 4.3 | 77 |
| Mar | 4.15 | 7.9 | 101 |
| Apr | 4.95 | 12.5 | 120 |
| May | 5.37 | 16.9 | 131 |
| Jun | 4.92 | 20.7 | 120 |
| Jul | 4.55 | 24.2 | 111 |
| Aug | 4.68 | 25.8 | 114 |
| Sep | 3.78 | 22.0 | 92 |
| Oct | 3.48 | 16.8 | 85 |
| Nov | 2.69 | 10.6 | 65 |
| Dec | 2.40 | 4.3 | 58 |
Solar potential of Busan explained
Busan receives an average of 3.89 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 1136 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 Busan?
With 3.89 kWh/m²/day of average irradiation, a 1 kWp system in Busan produces roughly 1136 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 Busan?
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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