Solar energy in Suizhou, China
Average irradiation 3.55 kWh/m²/day · ~1037 kWh per kWp per year
Monthly solar irradiation & temperature in Suizhou (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.12 | 2.0 | 52 |
| Feb | 2.48 | 5.2 | 60 |
| Mar | 3.56 | 10.7 | 87 |
| Apr | 4.24 | 16.6 | 103 |
| May | 4.53 | 21.5 | 110 |
| Jun | 4.60 | 25.7 | 112 |
| Jul | 4.86 | 27.9 | 118 |
| Aug | 4.69 | 27.3 | 114 |
| Sep | 3.83 | 22.9 | 93 |
| Oct | 3.06 | 17.0 | 75 |
| Nov | 2.49 | 10.1 | 61 |
| Dec | 2.10 | 3.6 | 51 |
Solar potential of Suizhou explained
Suizhou receives an average of 3.55 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 1037 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 Suizhou?
With 3.55 kWh/m²/day of average irradiation, a 1 kWp system in Suizhou produces roughly 1037 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 Suizhou?
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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