Solar energy in Bhāgalpur, India
Average irradiation 4.71 kWh/m²/day · ~1375 kWh per kWp per year
Monthly solar irradiation & temperature in Bhāgalpur (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 3.19 | 15.9 | 78 |
| Feb | 4.46 | 20.6 | 108 |
| Mar | 5.64 | 26.6 | 137 |
| Apr | 6.27 | 31.5 | 152 |
| May | 6.14 | 33.0 | 149 |
| Jun | 5.33 | 32.2 | 130 |
| Jul | 4.53 | 29.2 | 110 |
| Aug | 4.80 | 28.5 | 117 |
| Sep | 4.56 | 27.6 | 111 |
| Oct | 4.51 | 25.1 | 110 |
| Nov | 3.94 | 20.9 | 96 |
| Dec | 3.10 | 16.8 | 75 |
Solar potential of Bhāgalpur explained
Bhāgalpur receives an average of 4.71 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 1375 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Bhāgalpur among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Bhāgalpur?
With 4.71 kWh/m²/day of average irradiation, a 1 kWp system in Bhāgalpur produces roughly 1375 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 Bhāgalpur?
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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