Solar energy in Al Kharj, Saudi Arabia
Average irradiation 6.22 kWh/m²/day · ~1816 kWh per kWp per year
Monthly solar irradiation & temperature in Al Kharj (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.46 | 14.4 | 108 |
| Feb | 5.29 | 17.2 | 129 |
| Mar | 6.19 | 22.0 | 151 |
| Apr | 6.76 | 27.4 | 164 |
| May | 7.43 | 32.9 | 181 |
| Jun | 7.99 | 35.3 | 194 |
| Jul | 7.71 | 36.9 | 188 |
| Aug | 7.32 | 36.5 | 178 |
| Sep | 6.78 | 33.1 | 165 |
| Oct | 5.88 | 27.8 | 143 |
| Nov | 4.58 | 21.2 | 111 |
| Dec | 4.19 | 15.7 | 102 |
Solar potential of Al Kharj explained
Al Kharj receives an average of 6.22 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 1816 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Al Kharj among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Al Kharj?
With 6.22 kWh/m²/day of average irradiation, a 1 kWp system in Al Kharj produces roughly 1816 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 Al Kharj?
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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