Solar energy in Rio Branco, Brazil
Average irradiation 4.73 kWh/m²/day · ~1381 kWh per kWp per year
Monthly solar irradiation & temperature in Rio Branco (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.66 | 25.3 | 113 |
| Feb | 4.52 | 25.1 | 110 |
| Mar | 4.61 | 25.1 | 112 |
| Apr | 4.61 | 24.9 | 112 |
| May | 4.39 | 24.3 | 107 |
| Jun | 4.44 | 24.1 | 108 |
| Jul | 4.89 | 24.5 | 119 |
| Aug | 5.01 | 26.3 | 122 |
| Sep | 5.02 | 27.8 | 122 |
| Oct | 5.12 | 27.8 | 124 |
| Nov | 4.95 | 26.6 | 121 |
| Dec | 4.57 | 25.5 | 111 |
Solar potential of Rio Branco explained
Rio Branco receives an average of 4.73 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 1381 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Rio Branco among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Rio Branco?
With 4.73 kWh/m²/day of average irradiation, a 1 kWp system in Rio Branco produces roughly 1381 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 Rio Branco?
Approximately 7,000 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 →