Solar energy in Zhongshan, China
Average irradiation 4.06 kWh/m²/day · ~1186 kWh per kWp per year
Monthly solar irradiation & temperature in Zhongshan (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.85 | 16.2 | 69 |
| Feb | 2.99 | 18.4 | 73 |
| Mar | 3.24 | 21.3 | 79 |
| Apr | 4.01 | 24.6 | 98 |
| May | 4.84 | 27.3 | 118 |
| Jun | 4.85 | 28.2 | 118 |
| Jul | 5.19 | 28.3 | 126 |
| Aug | 4.94 | 28.2 | 120 |
| Sep | 4.71 | 27.3 | 115 |
| Oct | 4.36 | 24.7 | 106 |
| Nov | 3.68 | 21.4 | 89 |
| Dec | 3.09 | 17.1 | 75 |
Solar potential of Zhongshan explained
Zhongshan receives an average of 4.06 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 1186 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 Zhongshan?
With 4.06 kWh/m²/day of average irradiation, a 1 kWp system in Zhongshan produces roughly 1186 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 Zhongshan?
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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