Solar energy in Changchun, China
Average irradiation 3.91 kWh/m²/day · ~1142 kWh per kWp per year
Monthly solar irradiation & temperature in Changchun (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.25 | -16.5 | 55 |
| Feb | 3.20 | -11.6 | 78 |
| Mar | 4.21 | -2.3 | 102 |
| Apr | 4.99 | 7.2 | 121 |
| May | 5.59 | 15.2 | 136 |
| Jun | 5.45 | 20.7 | 133 |
| Jul | 5.09 | 23.6 | 124 |
| Aug | 4.76 | 22.0 | 116 |
| Sep | 4.35 | 15.9 | 106 |
| Oct | 3.17 | 6.6 | 77 |
| Nov | 2.12 | -4.2 | 52 |
| Dec | 1.79 | -14.1 | 43 |
Solar potential of Changchun explained
Changchun receives an average of 3.91 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 1142 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 Changchun?
With 3.91 kWh/m²/day of average irradiation, a 1 kWp system in Changchun produces roughly 1142 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 Changchun?
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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