Solar energy in Zigong, China
Average irradiation 3.05 kWh/m²/day · ~891 kWh per kWp per year
Monthly solar irradiation & temperature in Zigong (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 1.68 | 6.3 | 41 |
| Feb | 2.26 | 9.3 | 55 |
| Mar | 3.11 | 14.4 | 76 |
| Apr | 3.90 | 19.5 | 95 |
| May | 4.19 | 23.1 | 102 |
| Jun | 3.95 | 25.8 | 96 |
| Jul | 4.58 | 28.0 | 111 |
| Aug | 4.41 | 27.5 | 107 |
| Sep | 3.04 | 23.5 | 74 |
| Oct | 2.18 | 18.5 | 53 |
| Nov | 1.82 | 13.2 | 44 |
| Dec | 1.51 | 7.6 | 37 |
Solar potential of Zigong explained
Zigong receives an average of 3.05 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 891 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 Zigong?
With 3.05 kWh/m²/day of average irradiation, a 1 kWp system in Zigong produces roughly 891 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 Zigong?
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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