Solar energy in Kochi, Japan
Average irradiation 3.96 kWh/m²/day · ~1156 kWh per kWp per year
Monthly solar irradiation & temperature in Kochi (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.61 | 5.8 | 63 |
| Feb | 3.21 | 6.9 | 78 |
| Mar | 4.18 | 9.7 | 102 |
| Apr | 4.97 | 14.1 | 121 |
| May | 5.23 | 18.4 | 127 |
| Jun | 4.53 | 21.8 | 110 |
| Jul | 4.99 | 25.3 | 121 |
| Aug | 5.16 | 26.3 | 125 |
| Sep | 4.11 | 23.7 | 100 |
| Oct | 3.48 | 18.8 | 85 |
| Nov | 2.71 | 13.6 | 66 |
| Dec | 2.32 | 8.1 | 57 |
Solar potential of Kochi explained
Kochi receives an average of 3.96 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 1156 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 Kochi?
With 3.96 kWh/m²/day of average irradiation, a 1 kWp system in Kochi produces roughly 1156 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 Kochi?
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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