Solar energy in Calabar, Nigeria
Average irradiation 4.19 kWh/m²/day · ~1223 kWh per kWp per year
Monthly solar irradiation & temperature in Calabar (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 5.01 | 25.6 | 122 |
| Feb | 4.84 | 26.7 | 118 |
| Mar | 4.53 | 26.9 | 110 |
| Apr | 4.58 | 26.8 | 111 |
| May | 4.44 | 26.5 | 108 |
| Jun | 3.73 | 25.6 | 91 |
| Jul | 3.23 | 24.9 | 79 |
| Aug | 3.12 | 24.8 | 76 |
| Sep | 3.54 | 25.1 | 86 |
| Oct | 4.01 | 25.5 | 97 |
| Nov | 4.41 | 26.1 | 107 |
| Dec | 4.87 | 25.9 | 118 |
Solar potential of Calabar explained
Calabar receives an average of 4.19 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 1223 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 Calabar?
With 4.19 kWh/m²/day of average irradiation, a 1 kWp system in Calabar produces roughly 1223 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 Calabar?
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%.
Compare with nearby cities
Cairo (5.9) · Casablanca (5.3) · Lagos (4.6) · Nairobi (5.5) · Johannesburg (5.5) · Cape Town (5.3) · all cities →