Solar panels in Paris
At Paris's coordinates, PVGIS gives about 1,108 kWh a year for every kWp of panels, which is 6,650 kWh for a 6 kWp system. Paris's Éco-Rénovons Paris+ programme, for copropriétés (condominium buildings) doing an energy renovation, can fund rooftop solar panels, including PV. The renewable-equipment aid is 25% of the pre-tax works cost, with eligible spending capped at EUR 4,000 per dwelling. On our model, the system saves about EUR 434 in year one but does not pay back within 25 years if 30% of the power is used at home. The 70% that is exported earns 0.011 EUR per kWh against 0.194 EUR for power bought from the grid.
Month by month in Paris
Modelled output of a 6 kWp system at 35° facing south (towards the equator), from PVGIS climate data (PVGIS-SARAH3, 2005 to 2023).
| Month | kWh | Share of year |
|---|---|---|
| January | 257 | 3.9% |
| February | 376 | 5.7% |
| March | 584 | 8.8% |
| April | 739 | 11.1% |
| May | 755 | 11.3% |
| June | 758 | 11.4% |
| July | 781 | 11.8% |
| August | 728 | 10.9% |
| September | 643 | 9.7% |
| October | 470 | 7.1% |
| November | 303 | 4.6% |
| December | 257 | 3.9% |
- Best month: July (781 kWh). Weakest: December (257 kWh), a 3x difference.
- May, June, July produce 34.5% of the year; January, November, December produce 12.3%.
- Year-to-year variation: about 286 kWh (4.3%, one standard deviation).
- Sunlight reaching the panels: 1,436 kWh per m² a year.
Local rules and support in Paris
Rules set by the city or its region, on top of the national scheme. Each one was checked against the official source on the date shown.
- Ville de Paris
Éco-Rénovons Paris+ renewable-energy bonus for condominiums
Paris's Éco-Rénovons Paris+ programme, for copropriétés (condominium buildings) doing an energy renovation, can fund rooftop solar panels, including PV. The renewable-equipment aid is 25% of the pre-tax works cost, with eligible spending capped at EUR 4,000 per dwelling. It is not an aid for individual houses.
Source: Agence Parisienne du Climat (programme operator for the Ville de Paris), Éco-Rénovons Paris+ : des aides pour le recours aux énergies renouvelables et de récupération (checked 2026-09-25)
How Paris compares
Paris ranks 3 of 3 for yield among the cities we model in France, and 25 of 41 across every country on Solar Figures. Within one country the prices are the same, so a payback gap between these cities comes from sunshine alone.
| City | kWh per kWp / yr | Payback (EUR) |
|---|---|---|
| Marseille | 1,563 | 24.9 yrs |
| Lyon | 1,239 | 25+ yrs |
| Paris | 1,108 | 25+ yrs |
| National reference point (country page) | 1,179 | 25+ yrs |
Closest yield abroad: Munich (1,097 kWh per kWp), Kraków (1,045 kWh per kWp), Gdańsk (1,028 kWh per kWp).
What moves the payback in Paris
Power you use yourself is worth the retail price (€0.194 per kWh); power you export earns €0.011. So the share you use at home, by running appliances in daylight or adding a battery, changes the payback. The system cost stays the same in every row (a battery would add to it).
| Used at home | Year-1 savings | Payback |
|---|---|---|
| 20% | €313 | 25+ yrs |
| 30% (our default) | €434 | 25+ yrs |
| 50% | €675 | 22.3 yrs |
| 70% | €916 | 16.4 yrs |
- Net system cost after incentives: €13,200 for 6 kWp.
- Incentive modelled: No capital grant -- prime a l'autoconsommation ABOLISHED by arrete tarifaire of 1 Jun 2026 (JORF 4 Jun 2026).
- 25-year net savings at our default: €7,977.
Best panel angle in Paris
At latitude 48.85°N, PVGIS finds the fixed tilt and direction that maximise yearly output. Our figures use a common 35° roof; the table shows what the optimum adds.
| Setup | Tilt | Facing | kWh per kWp / yr |
|---|---|---|---|
| Standard roof (used on this page) | 35° | south | 1,108 |
| PVGIS optimum | 38° | south (175°) | 1,111 |
The optimum adds 0.2% a year over the standard roof in Paris. Most of a roof's value comes from its direction: a roof facing away from the equator loses far more than a few degrees of tilt.
See the full France picture on our France solar page, or the national incentives in our France solar guide.
Sources and method
Figures computed 2026-09-25 for a 6 kWp system, 35° tilt, 14% system losses, terrain shading on. An estimate, not a quote: your installer's quote will be exact.
- PVGIS 5.3 PVcalc (PVGIS-SARAH3), European Commission JRC (checked 2026-09-25)
- France tariff and incentive inputs (see DATA_SOURCES.md) (checked 2026-06-21)
- Agence Parisienne du Climat (programme operator for the Ville de Paris): Éco-Rénovons Paris+ : des aides pour le recours aux énergies renouvelables et de récupération (checked 2026-09-25)
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