Solar energy in Jiaojiang, China
Average irradiation 3.75 kWh/m²/day · ~1095 kWh per kWp per year
Monthly solar irradiation & temperature in Jiaojiang (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.32 | 6.8 | 56 |
| Feb | 2.64 | 8.4 | 64 |
| Mar | 3.45 | 11.3 | 84 |
| Apr | 4.06 | 16.0 | 99 |
| May | 4.28 | 20.6 | 104 |
| Jun | 4.25 | 24.2 | 103 |
| Jul | 5.77 | 27.5 | 140 |
| Aug | 5.24 | 27.3 | 127 |
| Sep | 4.24 | 24.4 | 103 |
| Oct | 3.76 | 19.5 | 91 |
| Nov | 2.61 | 14.7 | 63 |
| Dec | 2.35 | 8.7 | 57 |
Solar potential of Jiaojiang explained
Jiaojiang receives an average of 3.75 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 1095 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 Jiaojiang?
With 3.75 kWh/m²/day of average irradiation, a 1 kWp system in Jiaojiang produces roughly 1095 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 Jiaojiang?
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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