How much electricity do solar panels make in Durban, South Africa?
≈ 6,176 kWh a year
In Durban, South Africa, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (30°) make about 6,176 kWh of electricity a year — 1,544 kWh for every installed kilowatt.
1,544 kWh/kWpspecific yield per year
30°best yearly panel tilt
1,692 kWh/m²yearly sunlight on level ground
Marchbest month (June lowest)
Solar energy month by month in Durban
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 542 | 136 |
| February | 507 | 127 |
| March | 549 | 137 |
| April | 495 | 124 |
| May | 516 | 129 |
| June | 481 | 120 |
| July | 520 | 130 |
| August | 524 | 131 |
| September | 511 | 128 |
| October | 511 | 128 |
| November | 495 | 124 |
| December | 524 | 131 |
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.