Solar energy in Sariwŏn, North Korea
Average irradiation 3.89 kWh/m²/day · ~1136 kWh per kWp per year
Monthly solar irradiation & temperature in Sariwŏn (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.32 | -5.4 | 56 |
| Feb | 3.12 | -2.6 | 76 |
| Mar | 4.35 | 2.7 | 106 |
| Apr | 5.11 | 9.6 | 124 |
| May | 5.64 | 16.5 | 137 |
| Jun | 5.24 | 21.8 | 127 |
| Jul | 4.22 | 24.3 | 103 |
| Aug | 4.43 | 24.3 | 108 |
| Sep | 4.29 | 19.4 | 104 |
| Oct | 3.54 | 12.5 | 86 |
| Nov | 2.38 | 4.6 | 58 |
| Dec | 2.02 | -3.0 | 49 |
Solar potential of Sariwŏn explained
Sariwŏn 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 Sariwŏn?
With 3.89 kWh/m²/day of average irradiation, a 1 kWp system in Sariwŏn 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 Sariwŏn?
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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