Solar energy in Medan, Indonesia
Average irradiation 4.69 kWh/m²/day · ~1369 kWh per kWp per year
Monthly solar irradiation & temperature in Medan (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.50 | 25.1 | 110 |
| Feb | 4.94 | 25.4 | 120 |
| Mar | 5.19 | 25.9 | 126 |
| Apr | 4.97 | 26.4 | 121 |
| May | 4.82 | 26.6 | 117 |
| Jun | 4.93 | 26.2 | 120 |
| Jul | 4.76 | 26.0 | 116 |
| Aug | 4.79 | 25.9 | 116 |
| Sep | 4.60 | 25.8 | 112 |
| Oct | 4.41 | 25.6 | 107 |
| Nov | 4.23 | 25.3 | 103 |
| Dec | 4.12 | 25.1 | 100 |
Solar potential of Medan explained
Medan receives an average of 4.69 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 1369 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Medan among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Medan?
With 4.69 kWh/m²/day of average irradiation, a 1 kWp system in Medan produces roughly 1369 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 Medan?
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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