Solar energy in Fortaleza, Brazil
Average irradiation 5.76 kWh/m²/day · ~1682 kWh per kWp per year
Monthly solar irradiation & temperature in Fortaleza (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 5.63 | 27.5 | 137 |
| Feb | 5.42 | 27.4 | 132 |
| Mar | 5.25 | 27.3 | 128 |
| Apr | 4.84 | 27.2 | 118 |
| May | 5.12 | 27.2 | 125 |
| Jun | 5.13 | 26.7 | 125 |
| Jul | 5.51 | 26.4 | 134 |
| Aug | 6.24 | 26.6 | 152 |
| Sep | 6.66 | 27.0 | 162 |
| Oct | 6.69 | 27.4 | 163 |
| Nov | 6.49 | 27.7 | 158 |
| Dec | 6.11 | 27.9 | 149 |
Solar potential of Fortaleza explained
Fortaleza receives an average of 5.76 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 1682 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Fortaleza among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Fortaleza?
With 5.76 kWh/m²/day of average irradiation, a 1 kWp system in Fortaleza produces roughly 1682 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 Fortaleza?
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 →