How much electricity do solar panels make in Brussels, Belgium?
≈ 4,356 kWh a year
In Brussels, Belgium, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (35°) make about 4,356 kWh of electricity a year — 1,089 kWh for every installed kilowatt.
1,089 kWh/kWpspecific yield per year
35°best yearly panel tilt
1,111 kWh/m²yearly sunlight on level ground
Maybest month (December lowest)
Solar energy month by month in Brussels
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 160 | 40 |
| February | 233 | 58 |
| March | 382 | 95 |
| April | 489 | 122 |
| May | 533 | 133 |
| June | 527 | 132 |
| July | 529 | 132 |
| August | 480 | 120 |
| September | 411 | 103 |
| October | 302 | 76 |
| November | 172 | 43 |
| December | 139 | 35 |
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.