Solar energy in Yancheng, China
Average irradiation 3.73 kWh/m²/day · ~1089 kWh per kWp per year
Monthly solar irradiation & temperature in Yancheng (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.28 | 1.1 | 56 |
| Feb | 2.84 | 3.4 | 69 |
| Mar | 3.98 | 8.1 | 97 |
| Apr | 4.76 | 14.3 | 116 |
| May | 4.98 | 20.4 | 121 |
| Jun | 4.60 | 24.5 | 112 |
| Jul | 4.61 | 27.2 | 112 |
| Aug | 4.67 | 26.7 | 113 |
| Sep | 4.05 | 22.3 | 99 |
| Oct | 3.35 | 16.6 | 81 |
| Nov | 2.46 | 10.0 | 60 |
| Dec | 2.13 | 3.0 | 52 |
Solar potential of Yancheng explained
Yancheng receives an average of 3.73 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 1089 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 Yancheng?
With 3.73 kWh/m²/day of average irradiation, a 1 kWp system in Yancheng produces roughly 1089 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 Yancheng?
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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