Solar energy in Manila, Philippines
Average irradiation 5.11 kWh/m²/day · ~1492 kWh per kWp per year
Monthly solar irradiation & temperature in Manila (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.58 | 23.5 | 111 |
| Feb | 5.37 | 24.0 | 131 |
| Mar | 6.14 | 25.4 | 149 |
| Apr | 6.67 | 27.2 | 162 |
| May | 6.01 | 27.9 | 146 |
| Jun | 5.27 | 27.1 | 128 |
| Jul | 4.68 | 26.3 | 114 |
| Aug | 4.35 | 26.1 | 106 |
| Sep | 4.75 | 26.2 | 116 |
| Oct | 4.79 | 25.8 | 116 |
| Nov | 4.52 | 25.2 | 110 |
| Dec | 4.15 | 24.3 | 101 |
Solar potential of Manila explained
Manila receives an average of 5.11 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 1492 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Manila among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Manila?
With 5.11 kWh/m²/day of average irradiation, a 1 kWp system in Manila produces roughly 1492 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 Manila?
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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