Solar energy in Dadukou, China
Average irradiation 4.73 kWh/m²/day · ~1381 kWh per kWp per year
Monthly solar irradiation & temperature in Dadukou (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.25 | 9.1 | 103 |
| Feb | 5.08 | 12.1 | 124 |
| Mar | 5.68 | 16.3 | 138 |
| Apr | 5.93 | 20.2 | 144 |
| May | 5.73 | 23.0 | 139 |
| Jun | 5.11 | 24.2 | 124 |
| Jul | 4.60 | 23.7 | 112 |
| Aug | 4.63 | 23.3 | 113 |
| Sep | 3.95 | 21.3 | 96 |
| Oct | 3.93 | 17.9 | 95 |
| Nov | 4.09 | 13.1 | 99 |
| Dec | 3.82 | 9.3 | 93 |
Solar potential of Dadukou explained
Dadukou receives an average of 4.73 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 1381 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Dadukou among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Dadukou?
With 4.73 kWh/m²/day of average irradiation, a 1 kWp system in Dadukou produces roughly 1381 kWh per year. That is an excellent solar resource — payback periods are typically among the shortest worldwide.
How much electricity would a 5 kW system produce in Dadukou?
Approximately 7,000 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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