Solar energy in Soyapango, El Salvador
Average irradiation 5.89 kWh/m²/day · ~1720 kWh per kWp per year
Monthly solar irradiation & temperature in Soyapango (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 5.76 | 26.1 | 140 |
| Feb | 6.30 | 27.0 | 153 |
| Mar | 6.65 | 27.7 | 162 |
| Apr | 6.29 | 28.3 | 153 |
| May | 5.66 | 27.7 | 138 |
| Jun | 5.66 | 27.0 | 138 |
| Jul | 6.31 | 27.3 | 153 |
| Aug | 6.17 | 27.1 | 150 |
| Sep | 5.60 | 26.4 | 136 |
| Oct | 5.25 | 26.2 | 128 |
| Nov | 5.55 | 25.8 | 135 |
| Dec | 5.53 | 25.9 | 135 |
Solar potential of Soyapango explained
Soyapango receives an average of 5.89 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 1720 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Soyapango among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Soyapango?
With 5.89 kWh/m²/day of average irradiation, a 1 kWp system in Soyapango produces roughly 1720 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 Soyapango?
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%.
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