Solar energy in Palembang, Indonesia
Average irradiation 4.65 kWh/m²/day · ~1358 kWh per kWp per year
Monthly solar irradiation & temperature in Palembang (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.27 | 25.8 | 104 |
| Feb | 4.52 | 26.0 | 110 |
| Mar | 4.80 | 26.4 | 117 |
| Apr | 4.86 | 26.8 | 118 |
| May | 4.70 | 26.8 | 114 |
| Jun | 4.62 | 26.1 | 112 |
| Jul | 4.63 | 25.8 | 113 |
| Aug | 4.97 | 25.9 | 121 |
| Sep | 4.95 | 26.1 | 120 |
| Oct | 4.65 | 26.5 | 113 |
| Nov | 4.56 | 26.6 | 111 |
| Dec | 4.27 | 26.1 | 104 |
Solar potential of Palembang explained
Palembang receives an average of 4.65 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 1358 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Palembang among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Palembang?
With 4.65 kWh/m²/day of average irradiation, a 1 kWp system in Palembang produces roughly 1358 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 Palembang?
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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