Solar energy in Orūmīyeh, Iran
Average irradiation 5.09 kWh/m²/day · ~1486 kWh per kWp per year
Monthly solar irradiation & temperature in Orūmīyeh (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.57 | -2.8 | 62 |
| Feb | 3.65 | -0.4 | 89 |
| Mar | 4.58 | 4.2 | 111 |
| Apr | 5.68 | 9.1 | 138 |
| May | 6.95 | 14.8 | 169 |
| Jun | 8.17 | 20.7 | 199 |
| Jul | 7.77 | 24.1 | 189 |
| Aug | 7.04 | 23.8 | 171 |
| Sep | 5.81 | 19.4 | 141 |
| Oct | 3.98 | 12.7 | 97 |
| Nov | 2.75 | 4.4 | 67 |
| Dec | 2.14 | -0.6 | 52 |
Solar potential of Orūmīyeh explained
Orūmīyeh receives an average of 5.09 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 1486 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Orūmīyeh among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Orūmīyeh?
With 5.09 kWh/m²/day of average irradiation, a 1 kWp system in Orūmīyeh produces roughly 1486 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 Orūmīyeh?
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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