How much electricity do solar panels make in Freetown, Sierra Leone?
≈ 5,871 kWh a year
In Freetown, Sierra Leone, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (10°) make about 5,871 kWh of electricity a year — 1,468 kWh for every installed kilowatt.
1,468 kWh/kWpspecific yield per year
10°best yearly panel tilt
1,791 kWh/m²yearly sunlight on level ground
Marchbest month (August lowest)
Solar energy month by month in Freetown
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 553 | 138 |
| February | 525 | 131 |
| March | 588 | 147 |
| April | 545 | 136 |
| May | 500 | 125 |
| June | 411 | 103 |
| July | 382 | 95 |
| August | 377 | 94 |
| September | 443 | 111 |
| October | 518 | 129 |
| November | 497 | 124 |
| December | 533 | 133 |
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.