Solar energy in Wuwei, China
Average irradiation 4.41 kWh/m²/day · ~1288 kWh per kWp per year
Monthly solar irradiation & temperature in Wuwei (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.88 | -6.8 | 70 |
| Feb | 3.73 | -3.1 | 91 |
| Mar | 4.71 | 2.6 | 115 |
| Apr | 5.49 | 9.1 | 133 |
| May | 5.86 | 14.5 | 143 |
| Jun | 5.81 | 19.6 | 141 |
| Jul | 5.58 | 21.6 | 136 |
| Aug | 5.06 | 19.9 | 123 |
| Sep | 4.22 | 14.6 | 103 |
| Oct | 3.85 | 8.0 | 94 |
| Nov | 3.13 | 1.0 | 76 |
| Dec | 2.63 | -5.2 | 64 |
Solar potential of Wuwei explained
Wuwei receives an average of 4.41 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 1288 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 Wuwei?
With 4.41 kWh/m²/day of average irradiation, a 1 kWp system in Wuwei produces roughly 1288 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 Wuwei?
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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