Solar energy in Guiyang, China
Average irradiation 3.24 kWh/m²/day · ~946 kWh per kWp per year
Monthly solar irradiation & temperature in Guiyang (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 1.77 | 4.1 | 43 |
| Feb | 2.52 | 7.3 | 61 |
| Mar | 3.14 | 11.5 | 76 |
| Apr | 3.96 | 16.2 | 96 |
| May | 4.13 | 19.4 | 100 |
| Jun | 3.82 | 21.5 | 93 |
| Jul | 4.69 | 22.7 | 114 |
| Aug | 4.59 | 22.2 | 112 |
| Sep | 3.65 | 19.6 | 89 |
| Oct | 2.50 | 15.4 | 61 |
| Nov | 2.32 | 10.8 | 57 |
| Dec | 1.78 | 5.1 | 43 |
Solar potential of Guiyang explained
Guiyang receives an average of 3.24 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 946 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 Guiyang?
With 3.24 kWh/m²/day of average irradiation, a 1 kWp system in Guiyang produces roughly 946 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 Guiyang?
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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