Solar energy in Chongqing, China
Average irradiation 3 kWh/m²/day · ~876 kWh per kWp per year
Monthly solar irradiation & temperature in Chongqing (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 1.50 | 6.4 | 36 |
| Feb | 2.05 | 9.3 | 50 |
| Mar | 2.92 | 14.3 | 71 |
| Apr | 3.69 | 19.3 | 90 |
| May | 3.82 | 22.8 | 93 |
| Jun | 3.79 | 25.5 | 92 |
| Jul | 5.00 | 28.4 | 122 |
| Aug | 4.77 | 28.1 | 116 |
| Sep | 3.30 | 24.0 | 80 |
| Oct | 2.09 | 18.7 | 51 |
| Nov | 1.71 | 13.3 | 41 |
| Dec | 1.35 | 7.7 | 33 |
Solar potential of Chongqing explained
Chongqing receives an average of 3 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 876 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. While winters are dark, modern panel prices mean solar can still be economical — self-consumption value matters more than raw sunshine here.
Frequently asked questions
Is solar worth it in Chongqing?
With 3 kWh/m²/day of average irradiation, a 1 kWp system in Chongqing produces roughly 876 kWh per year. That is a moderate solar resource; economics depend more on local electricity prices and incentives, which our AI planner can research for you.
How much electricity would a 5 kW system produce in Chongqing?
Approximately 4,000 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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