Solar energy in Jiangmen, China
Average irradiation 4.07 kWh/m²/day · ~1188 kWh per kWp per year
Monthly solar irradiation & temperature in Jiangmen (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 3.04 | 14.7 | 74 |
| Feb | 3.14 | 17.4 | 76 |
| Mar | 3.33 | 20.5 | 81 |
| Apr | 3.81 | 24.0 | 93 |
| May | 4.56 | 26.7 | 111 |
| Jun | 4.70 | 27.9 | 114 |
| Jul | 5.43 | 28.3 | 132 |
| Aug | 5.06 | 28.3 | 123 |
| Sep | 4.65 | 27.1 | 113 |
| Oct | 4.36 | 24.0 | 106 |
| Nov | 3.59 | 20.3 | 87 |
| Dec | 3.19 | 15.5 | 78 |
Solar potential of Jiangmen explained
Jiangmen receives an average of 4.07 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 1188 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 Jiangmen?
With 4.07 kWh/m²/day of average irradiation, a 1 kWp system in Jiangmen produces roughly 1188 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 Jiangmen?
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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