Solar energy in Changde, China
Average irradiation 3.28 kWh/m²/day · ~958 kWh per kWp per year
Monthly solar irradiation & temperature in Changde (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 1.84 | 4.1 | 45 |
| Feb | 2.18 | 7.2 | 53 |
| Mar | 3.06 | 12.3 | 74 |
| Apr | 3.76 | 18.1 | 91 |
| May | 3.99 | 22.4 | 97 |
| Jun | 4.18 | 26.1 | 102 |
| Jul | 4.98 | 28.6 | 121 |
| Aug | 4.71 | 28.0 | 114 |
| Sep | 3.67 | 24.3 | 89 |
| Oct | 2.80 | 18.5 | 68 |
| Nov | 2.27 | 12.2 | 55 |
| Dec | 1.90 | 5.8 | 46 |
Solar potential of Changde explained
Changde 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 Changde?
With 3.28 kWh/m²/day of average irradiation, a 1 kWp system in Changde 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 Changde?
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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