Solar energy in Chengzhong, China
Average irradiation 3.5 kWh/m²/day · ~1022 kWh per kWp per year
Monthly solar irradiation & temperature in Chengzhong (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.02 | 3.1 | 49 |
| Feb | 2.36 | 6.2 | 57 |
| Mar | 3.34 | 11.5 | 81 |
| Apr | 4.06 | 17.3 | 99 |
| May | 4.36 | 22.2 | 106 |
| Jun | 4.41 | 26.2 | 107 |
| Jul | 5.05 | 28.5 | 123 |
| Aug | 4.89 | 28.2 | 119 |
| Sep | 3.95 | 24.1 | 96 |
| Oct | 3.07 | 18.2 | 75 |
| Nov | 2.46 | 11.4 | 60 |
| Dec | 2.07 | 4.8 | 50 |
Solar potential of Chengzhong explained
Chengzhong receives an average of 3.5 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 1022 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 Chengzhong?
With 3.5 kWh/m²/day of average irradiation, a 1 kWp system in Chengzhong produces roughly 1022 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 Chengzhong?
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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