How much electricity do solar panels make in Kumasi, Ghana?
≈ 5,678 kWh a year
In Kumasi, Ghana, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (5°) make about 5,678 kWh of electricity a year — 1,420 kWh for every installed kilowatt.
1,420 kWh/kWpspecific yield per year
5°best yearly panel tilt
1,733 kWh/m²yearly sunlight on level ground
Marchbest month (August lowest)
Solar energy month by month in Kumasi
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 511 | 128 |
| February | 458 | 115 |
| March | 530 | 132 |
| April | 518 | 130 |
| May | 508 | 127 |
| June | 430 | 108 |
| July | 410 | 103 |
| August | 403 | 101 |
| September | 411 | 103 |
| October | 497 | 124 |
| November | 505 | 126 |
| December | 497 | 124 |
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.