Solar energy in Gifu-shi, Japan
Average irradiation 3.73 kWh/m²/day · ~1089 kWh per kWp per year
Monthly solar irradiation & temperature in Gifu-shi (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.06 | 0.4 | 50 |
| Feb | 2.81 | 1.7 | 68 |
| Mar | 3.83 | 5.3 | 93 |
| Apr | 4.71 | 10.8 | 115 |
| May | 5.23 | 16.2 | 127 |
| Jun | 4.85 | 20.5 | 118 |
| Jul | 4.68 | 24.4 | 114 |
| Aug | 5.00 | 25.3 | 122 |
| Sep | 4.00 | 21.6 | 97 |
| Oct | 3.26 | 15.5 | 79 |
| Nov | 2.45 | 9.2 | 60 |
| Dec | 1.88 | 3.2 | 46 |
Solar potential of Gifu-shi explained
Gifu-shi receives an average of 3.73 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 1089 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 Gifu-shi?
With 3.73 kWh/m²/day of average irradiation, a 1 kWp system in Gifu-shi produces roughly 1089 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 Gifu-shi?
Approximately 5,000 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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