PVGIS · SolarMapped
Solar potential in France
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.
Explore on the solar map ↗Sampled-city benchmark
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.
Range across these cities: 1,148–1,627kWh/kWp/year. Panel tilt and direction are location-specific; see each city.
Monthly solar irradiation and PV output
Highest-output month: July · 152kWh/kWp/month. Lowest-output month: December · 69.4kWh/kWp/month.
The chart and table use the mean of the listed cities for each month.
| Month | Estimated PV output (kWh/kWp/month) | Solar irradiation (kWh/m²/month) |
|---|---|---|
| January | 73.1 | 85 |
| February | 89.2 | 105.5 |
| March | 123.4 | 149.5 |
| April | 139.4 | 173.5 |
| May | 144 | 182.2 |
| June | 144.9 | 187.6 |
| July | 152 | 199.2 |
| August | 145.3 | 189.3 |
| September | 128.6 | 164 |
| October | 103.3 | 127.2 |
| November | 75.1 | 89.3 |
| December | 69.4 | 81.1 |
Compare cities
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.
- Paris — Reference coordinates: 48.86, 2.35; Climate dataset / years: PVGIS-SARAH3 / 2005–2023; Data retrieved: .
- Marseille — Reference coordinates: 43.3, 5.37; Climate dataset / years: PVGIS-SARAH3 / 2005–2023; Data retrieved: .
PVGIS methodology · Sources and assumptions (English) · Download the underlying data (JSON)