Solar energy in Banjarmasin, Indonesia
Average irradiation 4.95 kWh/m²/day · ~1445 kWh per kWp per year
Monthly solar irradiation & temperature in Banjarmasin (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.57 | 27.2 | 111 |
| Feb | 4.65 | 27.4 | 113 |
| Mar | 4.95 | 27.6 | 120 |
| Apr | 5.03 | 28.0 | 122 |
| May | 5.02 | 28.1 | 122 |
| Jun | 4.71 | 27.5 | 114 |
| Jul | 4.90 | 27.0 | 119 |
| Aug | 5.44 | 27.2 | 132 |
| Sep | 5.50 | 27.9 | 134 |
| Oct | 5.23 | 28.5 | 127 |
| Nov | 4.94 | 28.3 | 120 |
| Dec | 4.51 | 27.5 | 110 |
Solar potential of Banjarmasin explained
Banjarmasin receives an average of 4.95 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 1445 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Banjarmasin among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Banjarmasin?
With 4.95 kWh/m²/day of average irradiation, a 1 kWp system in Banjarmasin produces roughly 1445 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 Banjarmasin?
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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