Solar energy in Qazvin, Iran
Average irradiation 4.53 kWh/m²/day · ~1323 kWh per kWp per year
Monthly solar irradiation & temperature in Qazvin (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.24 | -2.3 | 54 |
| Feb | 2.82 | -0.7 | 69 |
| Mar | 3.85 | 4.4 | 94 |
| Apr | 4.85 | 9.2 | 118 |
| May | 6.28 | 14.8 | 153 |
| Jun | 7.32 | 19.3 | 178 |
| Jul | 6.91 | 22.0 | 168 |
| Aug | 6.47 | 21.8 | 157 |
| Sep | 5.36 | 18.2 | 130 |
| Oct | 3.82 | 12.3 | 93 |
| Nov | 2.46 | 4.1 | 60 |
| Dec | 1.98 | -0.6 | 48 |
Solar potential of Qazvin explained
Qazvin receives an average of 4.53 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 1323 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Qazvin among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Qazvin?
With 4.53 kWh/m²/day of average irradiation, a 1 kWp system in Qazvin produces roughly 1323 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 Qazvin?
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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