Solar energy in Goiânia, Brazil
Average irradiation 5.5 kWh/m²/day · ~1606 kWh per kWp per year
Monthly solar irradiation & temperature in Goiânia (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 5.70 | 23.3 | 139 |
| Feb | 5.78 | 23.2 | 141 |
| Mar | 5.55 | 23.1 | 135 |
| Apr | 5.41 | 22.4 | 132 |
| May | 4.98 | 20.6 | 121 |
| Jun | 4.78 | 20.2 | 116 |
| Jul | 5.07 | 20.9 | 123 |
| Aug | 5.72 | 23.5 | 139 |
| Sep | 5.93 | 26.3 | 144 |
| Oct | 5.83 | 26.1 | 142 |
| Nov | 5.59 | 24.2 | 136 |
| Dec | 5.62 | 23.6 | 137 |
Solar potential of Goiânia explained
Goiânia receives an average of 5.5 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 1606 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Goiânia among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Goiânia?
With 5.5 kWh/m²/day of average irradiation, a 1 kWp system in Goiânia produces roughly 1606 kWh per year. That is an excellent solar resource — payback periods are typically among the shortest worldwide.
How much electricity would a 5 kW system produce in Goiânia?
Approximately 8,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
Compare with nearby cities
São Paulo (4.5) · Rio de Janeiro (4.8) · Buenos Aires (4.6) · Santiago (5) · Bogotá (4.4) · Lima (5.1) · all cities →