Solar energy in Xiangtan, China
Average irradiation 3.28 kWh/m²/day · ~958 kWh per kWp per year
Monthly solar irradiation & temperature in Xiangtan (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 1.72 | 5.3 | 42 |
| Feb | 2.06 | 8.4 | 50 |
| Mar | 2.66 | 13.0 | 65 |
| Apr | 3.44 | 18.4 | 84 |
| May | 3.93 | 22.8 | 96 |
| Jun | 4.17 | 26.0 | 102 |
| Jul | 5.35 | 28.4 | 130 |
| Aug | 4.80 | 27.9 | 117 |
| Sep | 3.82 | 24.7 | 93 |
| Oct | 3.03 | 19.3 | 74 |
| Nov | 2.41 | 13.3 | 59 |
| Dec | 1.96 | 6.8 | 48 |
Solar potential of Xiangtan explained
Xiangtan receives an average of 3.28 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 958 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. While winters are dark, modern panel prices mean solar can still be economical — self-consumption value matters more than raw sunshine here.
Frequently asked questions
Is solar worth it in Xiangtan?
With 3.28 kWh/m²/day of average irradiation, a 1 kWp system in Xiangtan produces roughly 958 kWh per year. That is a moderate solar resource; economics depend more on local electricity prices and incentives, which our AI planner can research for you.
How much electricity would a 5 kW system produce in Xiangtan?
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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