Solar energy in Siliguri, India
Average irradiation 4.32 kWh/m²/day · ~1261 kWh per kWp per year
Monthly solar irradiation & temperature in Siliguri (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 3.23 | 16.0 | 79 |
| Feb | 4.13 | 19.6 | 100 |
| Mar | 5.15 | 24.6 | 125 |
| Apr | 5.42 | 28.4 | 132 |
| May | 5.23 | 29.3 | 127 |
| Jun | 4.51 | 29.2 | 110 |
| Jul | 4.08 | 27.7 | 99 |
| Aug | 4.41 | 27.4 | 107 |
| Sep | 4.15 | 26.4 | 101 |
| Oct | 4.36 | 24.1 | 106 |
| Nov | 3.94 | 20.7 | 96 |
| Dec | 3.27 | 17.2 | 80 |
Solar potential of Siliguri explained
Siliguri receives an average of 4.32 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 1261 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This is a solid mid-range solar resource: production is meaningful year-round, though winter output drops noticeably.
Frequently asked questions
Is solar worth it in Siliguri?
With 4.32 kWh/m²/day of average irradiation, a 1 kWp system in Siliguri produces roughly 1261 kWh per year. That is a good solar resource; with current panel prices most systems pay back well within their lifetime.
How much electricity would a 5 kW system produce in Siliguri?
Approximately 6,000 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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