Solar energy in Āsansol, India
Average irradiation 4.78 kWh/m²/day · ~1396 kWh per kWp per year
Monthly solar irradiation & temperature in Āsansol (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 3.82 | 16.2 | 93 |
| Feb | 4.75 | 20.6 | 116 |
| Mar | 5.69 | 26.2 | 138 |
| Apr | 6.30 | 31.3 | 153 |
| May | 6.14 | 32.6 | 149 |
| Jun | 5.21 | 31.0 | 127 |
| Jul | 4.36 | 28.6 | 106 |
| Aug | 4.50 | 27.9 | 109 |
| Sep | 4.51 | 27.2 | 110 |
| Oct | 4.52 | 25.0 | 110 |
| Nov | 4.05 | 20.8 | 99 |
| Dec | 3.55 | 16.8 | 86 |
Solar potential of Āsansol explained
Āsansol receives an average of 4.78 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 1396 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Āsansol among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Āsansol?
With 4.78 kWh/m²/day of average irradiation, a 1 kWp system in Āsansol produces roughly 1396 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 Āsansol?
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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