Solar energy in Kumasi, Ghana
Average irradiation 4.71 kWh/m²/day · ~1375 kWh per kWp per year
Monthly solar irradiation & temperature in Kumasi (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.92 | 26.2 | 120 |
| Feb | 4.97 | 27.9 | 121 |
| Mar | 5.25 | 27.4 | 128 |
| Apr | 5.34 | 26.9 | 130 |
| May | 5.08 | 26.2 | 124 |
| Jun | 4.40 | 24.9 | 107 |
| Jul | 4.03 | 24.2 | 98 |
| Aug | 3.91 | 24.3 | 95 |
| Sep | 4.13 | 24.9 | 100 |
| Oct | 4.78 | 25.2 | 116 |
| Nov | 4.98 | 25.6 | 121 |
| Dec | 4.74 | 25.6 | 115 |
Solar potential of Kumasi explained
Kumasi receives an average of 4.71 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 1375 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Kumasi among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Kumasi?
With 4.71 kWh/m²/day of average irradiation, a 1 kWp system in Kumasi produces roughly 1375 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 Kumasi?
Approximately 7,000 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 →