Solar energy in Zhangjiakou, China
Average irradiation 4.45 kWh/m²/day · ~1299 kWh per kWp per year
Monthly solar irradiation & temperature in Zhangjiakou (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.60 | -13.3 | 63 |
| Feb | 3.48 | -9.3 | 85 |
| Mar | 4.78 | -2.0 | 116 |
| Apr | 5.74 | 5.8 | 140 |
| May | 6.41 | 13.0 | 156 |
| Jun | 5.95 | 18.1 | 145 |
| Jul | 5.66 | 20.7 | 138 |
| Aug | 5.43 | 19.2 | 132 |
| Sep | 4.58 | 13.2 | 111 |
| Oct | 3.72 | 4.9 | 90 |
| Nov | 2.73 | -4.2 | 66 |
| Dec | 2.26 | -12.1 | 55 |
Solar potential of Zhangjiakou explained
Zhangjiakou receives an average of 4.45 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 1299 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 Zhangjiakou?
With 4.45 kWh/m²/day of average irradiation, a 1 kWp system in Zhangjiakou produces roughly 1299 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 Zhangjiakou?
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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