Solar energy in Oaxaca, Mexico
Average irradiation 5.02 kWh/m²/day · ~1466 kWh per kWp per year
Monthly solar irradiation & temperature in Oaxaca (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.27 | 14.0 | 104 |
| Feb | 5.05 | 16.0 | 123 |
| Mar | 5.69 | 17.9 | 138 |
| Apr | 5.93 | 20.0 | 144 |
| May | 5.67 | 19.9 | 138 |
| Jun | 5.34 | 18.1 | 130 |
| Jul | 5.32 | 17.2 | 129 |
| Aug | 5.26 | 17.2 | 128 |
| Sep | 4.63 | 16.9 | 113 |
| Oct | 4.49 | 15.9 | 109 |
| Nov | 4.33 | 14.3 | 105 |
| Dec | 4.26 | 14.1 | 103 |
Solar potential of Oaxaca explained
Oaxaca receives an average of 5.02 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 1466 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Oaxaca among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Oaxaca?
With 5.02 kWh/m²/day of average irradiation, a 1 kWp system in Oaxaca produces roughly 1466 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 Oaxaca?
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%.
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