Solar energy in Tumkūr, India
Average irradiation 5.61 kWh/m²/day · ~1638 kWh per kWp per year
Monthly solar irradiation & temperature in Tumkūr (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 5.51 | 22.0 | 134 |
| Feb | 6.29 | 24.6 | 153 |
| Mar | 6.66 | 27.7 | 162 |
| Apr | 6.77 | 29.1 | 165 |
| May | 6.50 | 27.4 | 158 |
| Jun | 5.62 | 24.6 | 137 |
| Jul | 4.97 | 23.8 | 121 |
| Aug | 4.97 | 23.5 | 121 |
| Sep | 5.26 | 23.4 | 128 |
| Oct | 5.15 | 23.0 | 125 |
| Nov | 4.81 | 21.6 | 117 |
| Dec | 4.86 | 20.9 | 118 |
Solar potential of Tumkūr explained
Tumkūr receives an average of 5.61 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 1638 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Tumkūr among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Tumkūr?
With 5.61 kWh/m²/day of average irradiation, a 1 kWp system in Tumkūr produces roughly 1638 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 Tumkūr?
Approximately 8,000 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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