Solar energy in Havana, Cuba
Average irradiation 5.26 kWh/m²/day · ~1536 kWh per kWp per year
Monthly solar irradiation & temperature in Havana (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 3.71 | 22.4 | 90 |
| Feb | 4.62 | 23.5 | 112 |
| Mar | 5.70 | 24.5 | 139 |
| Apr | 6.48 | 26.5 | 158 |
| May | 6.46 | 27.8 | 157 |
| Jun | 6.08 | 28.5 | 148 |
| Jul | 6.41 | 29.0 | 156 |
| Aug | 6.18 | 29.1 | 150 |
| Sep | 5.46 | 28.3 | 133 |
| Oct | 4.64 | 27.1 | 113 |
| Nov | 3.89 | 24.8 | 95 |
| Dec | 3.53 | 23.6 | 86 |
Solar potential of Havana explained
Havana receives an average of 5.26 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 1536 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Havana among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Havana?
With 5.26 kWh/m²/day of average irradiation, a 1 kWp system in Havana produces roughly 1536 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 Havana?
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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