How much electricity do solar panels make in Fortaleza, Brazil?
≈ 6,750 kWh a year
In Fortaleza, Brazil, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (5°) make about 6,750 kWh of electricity a year — 1,688 kWh for every installed kilowatt.
1,688 kWh/kWpspecific yield per year
5°best yearly panel tilt
2,099 kWh/m²yearly sunlight on level ground
Octoberbest month (February lowest)
Solar energy month by month in Fortaleza
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 545 | 136 |
| February | 482 | 121 |
| March | 528 | 132 |
| April | 484 | 121 |
| May | 530 | 132 |
| June | 515 | 129 |
| July | 568 | 142 |
| August | 630 | 158 |
| September | 639 | 160 |
| October | 648 | 162 |
| November | 599 | 150 |
| December | 583 | 146 |
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.