Solar energy in Chongjin, North Korea
Average irradiation 3.68 kWh/m²/day · ~1075 kWh per kWp per year
Monthly solar irradiation & temperature in Chongjin (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.11 | -7.1 | 51 |
| Feb | 3.00 | -4.8 | 73 |
| Mar | 4.11 | 0.3 | 100 |
| Apr | 4.89 | 6.4 | 119 |
| May | 5.06 | 12.0 | 123 |
| Jun | 4.75 | 16.6 | 116 |
| Jul | 4.35 | 20.3 | 106 |
| Aug | 4.28 | 21.6 | 104 |
| Sep | 4.10 | 17.4 | 100 |
| Oct | 3.37 | 10.9 | 82 |
| Nov | 2.28 | 2.7 | 55 |
| Dec | 1.88 | -4.9 | 46 |
Solar potential of Chongjin explained
Chongjin receives an average of 3.68 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 1075 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 Chongjin?
With 3.68 kWh/m²/day of average irradiation, a 1 kWp system in Chongjin produces roughly 1075 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 Chongjin?
Approximately 5,000 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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