Solar energy in Thiruvananthapuram, India
Average irradiation 5.41 kWh/m²/day · ~1580 kWh per kWp per year
Monthly solar irradiation & temperature in Thiruvananthapuram (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 5.61 | 26.2 | 137 |
| Feb | 6.21 | 27.8 | 151 |
| Mar | 6.40 | 29.0 | 156 |
| Apr | 6.05 | 28.9 | 147 |
| May | 5.24 | 28.1 | 127 |
| Jun | 4.86 | 26.8 | 118 |
| Jul | 4.94 | 26.0 | 120 |
| Aug | 5.29 | 25.9 | 129 |
| Sep | 5.53 | 26.1 | 134 |
| Oct | 5.14 | 26.4 | 125 |
| Nov | 4.67 | 26.3 | 114 |
| Dec | 4.93 | 25.8 | 120 |
Solar potential of Thiruvananthapuram explained
Thiruvananthapuram receives an average of 5.41 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 1580 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Thiruvananthapuram among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Thiruvananthapuram?
With 5.41 kWh/m²/day of average irradiation, a 1 kWp system in Thiruvananthapuram produces roughly 1580 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 Thiruvananthapuram?
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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