Solar energy in Shiraz, Iran
Average irradiation 5.93 kWh/m²/day · ~1732 kWh per kWp per year
Monthly solar irradiation & temperature in Shiraz (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 3.59 | 4.3 | 87 |
| Feb | 4.46 | 6.2 | 109 |
| Mar | 5.74 | 10.2 | 140 |
| Apr | 6.50 | 15.2 | 158 |
| May | 7.72 | 21.2 | 188 |
| Jun | 8.31 | 26.6 | 202 |
| Jul | 7.79 | 28.9 | 190 |
| Aug | 7.44 | 27.6 | 181 |
| Sep | 6.61 | 23.9 | 161 |
| Oct | 5.48 | 18.4 | 133 |
| Nov | 4.03 | 10.8 | 98 |
| Dec | 3.43 | 6.3 | 84 |
Solar potential of Shiraz explained
Shiraz receives an average of 5.93 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 1732 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Shiraz among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Shiraz?
With 5.93 kWh/m²/day of average irradiation, a 1 kWp system in Shiraz produces roughly 1732 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 Shiraz?
Approximately 9,000 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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