How much electricity do solar panels make in Riyadh, Saudi Arabia?
≈ 7,574 kWh a year
In Riyadh, Saudi Arabia, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (20°) make about 7,574 kWh of electricity a year — 1,893 kWh for every installed kilowatt.
1,893 kWh/kWpspecific yield per year
20°best yearly panel tilt
2,261 kWh/m²yearly sunlight on level ground
Julybest month (November lowest)
Solar energy month by month in Riyadh
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 574 | 143 |
| February | 565 | 141 |
| March | 663 | 166 |
| April | 640 | 160 |
| May | 678 | 169 |
| June | 678 | 170 |
| July | 685 | 171 |
| August | 679 | 170 |
| September | 659 | 165 |
| October | 657 | 164 |
| November | 547 | 137 |
| December | 549 | 137 |
How these numbers were calculated
NASA POWER long-term monthly means on a 1° grid around the city, the monthly method of Duffie & Beckman (isotropic sky, each month's average day), panel temperature from NOCT, 10 % other losses and a 96 % inverter. No shading, snow or product-specific data; expect ±10 % against a detailed tool such as PVGIS. To change the number of panels, their rating, tilt, direction or your roof size, use Blorp's free solar roof tool — every result shows its equation and the numbers used.