Solar energy in Guantánamo, Cuba
Average irradiation 5.21 kWh/m²/day · ~1521 kWh per kWp per year
Monthly solar irradiation & temperature in Guantánamo (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 4.18 | 24.9 | 102 |
| Feb | 4.99 | 25.2 | 121 |
| Mar | 5.58 | 25.7 | 136 |
| Apr | 5.98 | 26.8 | 146 |
| May | 5.74 | 27.4 | 139 |
| Jun | 5.89 | 28.1 | 143 |
| Jul | 6.12 | 28.5 | 149 |
| Aug | 5.95 | 28.6 | 145 |
| Sep | 5.37 | 28.5 | 131 |
| Oct | 4.59 | 27.5 | 112 |
| Nov | 4.12 | 26.3 | 100 |
| Dec | 4.00 | 25.6 | 97 |
Solar potential of Guantánamo explained
Guantánamo receives an average of 5.21 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 1521 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Guantánamo among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Guantánamo?
With 5.21 kWh/m²/day of average irradiation, a 1 kWp system in Guantánamo produces roughly 1521 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 Guantánamo?
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%.
Compare with nearby cities
New York (4) · Los Angeles (5.4) · Phoenix (5.9) · Houston (4.7) · Miami (5.1) · Denver (5) · all cities →