Solar energy in Teresina, Brazil
Average irradiation 5.83 kWh/m²/day · ~1702 kWh per kWp per year
Monthly solar irradiation & temperature in Teresina (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 5.38 | 27.4 | 131 |
| Feb | 5.44 | 26.3 | 132 |
| Mar | 5.50 | 26.1 | 134 |
| Apr | 5.33 | 25.9 | 130 |
| May | 5.41 | 26.3 | 132 |
| Jun | 5.49 | 26.9 | 133 |
| Jul | 5.81 | 27.8 | 141 |
| Aug | 6.45 | 29.2 | 157 |
| Sep | 6.75 | 30.7 | 164 |
| Oct | 6.60 | 31.3 | 161 |
| Nov | 6.12 | 30.8 | 149 |
| Dec | 5.67 | 29.6 | 138 |
Solar potential of Teresina explained
Teresina receives an average of 5.83 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 1702 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Teresina among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Teresina?
With 5.83 kWh/m²/day of average irradiation, a 1 kWp system in Teresina produces roughly 1702 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 Teresina?
Approximately 9,000 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
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