Solar energy in Chengde, China
Average irradiation 4.2 kWh/m²/day · ~1226 kWh per kWp per year
Monthly solar irradiation & temperature in Chengde (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.56 | -10.1 | 62 |
| Feb | 3.40 | -6.2 | 83 |
| Mar | 4.68 | 0.8 | 114 |
| Apr | 5.49 | 8.6 | 133 |
| May | 6.10 | 16.2 | 148 |
| Jun | 5.45 | 20.8 | 133 |
| Jul | 4.97 | 23.1 | 121 |
| Aug | 4.97 | 21.8 | 121 |
| Sep | 4.40 | 16.2 | 107 |
| Oct | 3.48 | 7.7 | 85 |
| Nov | 2.62 | -1.3 | 64 |
| Dec | 2.28 | -8.6 | 55 |
Solar potential of Chengde explained
Chengde receives an average of 4.2 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 1226 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 Chengde?
With 4.2 kWh/m²/day of average irradiation, a 1 kWp system in Chengde produces roughly 1226 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 Chengde?
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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