How much electricity do solar panels make in Porto Alegre, Brazil?
≈ 5,874 kWh a year
In Porto Alegre, Brazil, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (25°) make about 5,874 kWh of electricity a year — 1,468 kWh for every installed kilowatt.
1,468 kWh/kWpspecific yield per year
25°best yearly panel tilt
1,658 kWh/m²yearly sunlight on level ground
Decemberbest month (June lowest)
Solar energy month by month in Porto Alegre
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 601 | 150 |
| February | 529 | 132 |
| March | 544 | 136 |
| April | 467 | 117 |
| May | 395 | 99 |
| June | 345 | 86 |
| July | 388 | 97 |
| August | 440 | 110 |
| September | 450 | 113 |
| October | 522 | 130 |
| November | 580 | 145 |
| December | 613 | 153 |
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.