How much electricity do solar panels make in Lusaka, Zambia?
≈ 7,095 kWh a year
In Lusaka, Zambia, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (20°) make about 7,095 kWh of electricity a year — 1,774 kWh for every installed kilowatt.
1,774 kWh/kWpspecific yield per year
20°best yearly panel tilt
2,101 kWh/m²yearly sunlight on level ground
Augustbest month (February lowest)
Solar energy month by month in Lusaka
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 521 | 130 |
| February | 494 | 123 |
| March | 570 | 143 |
| April | 589 | 147 |
| May | 644 | 161 |
| June | 598 | 149 |
| July | 628 | 157 |
| August | 674 | 168 |
| September | 652 | 163 |
| October | 648 | 162 |
| November | 553 | 138 |
| December | 523 | 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.