Solar energy in Jiujiang, China
Average irradiation 3.6 kWh/m²/day · ~1051 kWh per kWp per year
Monthly solar irradiation & temperature in Jiujiang (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.08 | 4.5 | 51 |
| Feb | 2.44 | 7.4 | 59 |
| Mar | 3.21 | 12.0 | 78 |
| Apr | 3.96 | 17.8 | 96 |
| May | 4.37 | 22.6 | 106 |
| Jun | 4.20 | 25.8 | 102 |
| Jul | 5.29 | 28.6 | 129 |
| Aug | 5.00 | 28.1 | 122 |
| Sep | 4.28 | 24.4 | 104 |
| Oct | 3.47 | 18.9 | 84 |
| Nov | 2.66 | 12.8 | 65 |
| Dec | 2.24 | 6.1 | 55 |
Solar potential of Jiujiang explained
Jiujiang receives an average of 3.6 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 1051 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 Jiujiang?
With 3.6 kWh/m²/day of average irradiation, a 1 kWp system in Jiujiang produces roughly 1051 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 Jiujiang?
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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