PVGIS · SolarMapped
Solar potential in Lisbon
This estimate represents one coordinate near the city center, not every roof or neighborhood.
Explore on the solar map ↗Annual values
PV output is estimated electricity from 1 kWp of installed solar panels. Irradiation is sunlight energy received per square meter on the optimally tilted panel plane; it is not electricity.
For a 5 kWp system, multiply the electricity values by five. This simple scaling does not account for roof-specific shading or equipment constraints.
Compared with the sampled-city benchmark: +2.3% (1,543kWh/kWp/year). These figures are the unweighted mean of the city locations listed below, not a national average. Two urban points do not represent an entire country, its roofs or its solar installations.
Monthly solar irradiation and PV output
Highest-output month: July · 170.4kWh/kWp/month. Lowest-output month: December · 89.4kWh/kWp/month.
| Month | Estimated PV output (kWh/kWp/month) | Solar irradiation (kWh/m²/month) |
|---|---|---|
| January | 96.9 | 116.5 |
| February | 105 | 128 |
| March | 132.7 | 164.6 |
| April | 140.9 | 179.1 |
| May | 156.9 | 202.4 |
| June | 155 | 202 |
| July | 170.4 | 223.1 |
| August | 169.9 | 223.6 |
| September | 149.6 | 194.8 |
| October | 119.7 | 152 |
| November | 92.7 | 113.8 |
| December | 89.4 | 107.6 |
More cities in Portugal
Data and methodology
PVGIS 5.3 (European Commission Joint Research Centre), crystalline silicon, fixed free-standing installation, 1 kWp, 14% system losses, equator-facing panels with optimized tilt and the terrain horizon. Long-term climate estimates are not a forecast or a roof survey. Nearby buildings, trees, roof constraints, snow and local conditions can change actual output.
- Lisbon — Reference coordinates: 38.72, -9.14; Climate dataset / years: PVGIS-SARAH3 / 2005–2023; Data retrieved: .
PVGIS methodology · Sources and assumptions (English) · Download the underlying data (JSON)