How much electricity do solar panels make in Goiânia, Brazil?
≈ 6,818 kWh a year
In Goiânia, Brazil, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (20°) make about 6,818 kWh of electricity a year — 1,704 kWh for every installed kilowatt.
1,704 kWh/kWpspecific yield per year
20°best yearly panel tilt
2,007 kWh/m²yearly sunlight on level ground
Augustbest month (February lowest)
Solar energy month by month in Goiânia
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 534 | 134 |
| February | 506 | 126 |
| March | 566 | 141 |
| April | 574 | 144 |
| May | 594 | 149 |
| June | 578 | 145 |
| July | 625 | 156 |
| August | 652 | 163 |
| September | 594 | 149 |
| October | 565 | 141 |
| November | 508 | 127 |
| December | 521 | 130 |
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.