Solar energy in Tianjin, China
Average irradiation 3.96 kWh/m²/day · ~1156 kWh per kWp per year
Monthly solar irradiation & temperature in Tianjin (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.34 | -4.0 | 57 |
| Feb | 3.04 | -0.7 | 74 |
| Mar | 4.41 | 5.7 | 107 |
| Apr | 5.25 | 13.9 | 128 |
| May | 5.86 | 21.2 | 143 |
| Jun | 5.26 | 25.7 | 128 |
| Jul | 4.75 | 27.5 | 116 |
| Aug | 4.69 | 25.9 | 114 |
| Sep | 4.17 | 21.0 | 101 |
| Oct | 3.21 | 13.2 | 78 |
| Nov | 2.40 | 4.0 | 58 |
| Dec | 2.07 | -2.5 | 50 |
Solar potential of Tianjin explained
Tianjin receives an average of 3.96 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 1156 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 Tianjin?
With 3.96 kWh/m²/day of average irradiation, a 1 kWp system in Tianjin produces roughly 1156 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 Tianjin?
Approximately 6,000 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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