Solar panels in Marseille
PVGIS climate data puts Marseille at roughly 1,563 kWh per kWp each year, so a typical 6 kWp roof makes around 9,376 kWh. Région Sud's Sud PV Plus self-consumption PV aid (page updated 19 January 2026) is open only to legal entities, such as local authorities, companies, social landlords, copropriétés and associations, for projects of at least 10 kWp. Compared with the France reference point on our country page, Marseille produces 32% more per kWp. Self-consumption matters: at 70% used at home rather than 30%, payback falls from 24.9 to 10.5 years. Of the 3 cities we model in France, Marseille has the highest yield. Lyon gets 1,239 kWh per kWp.
Month by month in Marseille
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 | 563 | 6.0% |
| February | 636 | 6.8% |
| March | 829 | 8.8% |
| April | 878 | 9.4% |
| May | 939 | 10.0% |
| June | 952 | 10.1% |
| July | 1,010 | 10.8% |
| August | 967 | 10.3% |
| September | 836 | 8.9% |
| October | 703 | 7.5% |
| November | 542 | 5.8% |
| December | 523 | 5.6% |
- Best month: July (1,010 kWh). Weakest: December (523 kWh), a 1.9x difference.
- June, July, August produce 31.2% of the year; January, November, December produce 17.4%.
- Year-to-year variation: about 231 kWh (2.5%, one standard deviation).
- Sunlight reaching the panels: 2,029 kWh per m² a year.
Local rules and support in Marseille
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.
- Région Sud (Provence-Alpes-Côte d'Azur)
Sud PV Plus regional aid excludes individuals
Région Sud's Sud PV Plus self-consumption PV aid (page updated 19 January 2026) is open only to legal entities, such as local authorities, companies, social landlords, copropriétés and associations, for projects of at least 10 kWp. Individual homeowners are not eligible.
Source: Région Sud - Provence-Alpes-Côte d'Azur, Plan solaire : Sud PV Plus en soutien de l'autoconsommation photovoltaïque (checked 2026-09-25)
How Marseille compares
Marseille ranks 1 of 3 for yield among the cities we model in France, and 6 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: Valencia (1,563 kWh per kWp), Delhi (1,552 kWh per kWp), Madrid (1,548 kWh per kWp).
What moves the payback in Marseille
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% | €442 | 25+ yrs |
| 30% (our default) | €612 | 24.9 yrs |
| 50% | €951 | 15.9 yrs |
| 70% | €1,291 | 10.5 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: €13,251.
Best panel angle in Marseille
At latitude 43.3°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 | 1,563 |
| PVGIS optimum | 39° | south (180°) | 1,565 |
The optimum adds 0.2% a year over the standard roof in Marseille. 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)
- Région Sud - Provence-Alpes-Côte d'Azur: Plan solaire : Sud PV Plus en soutien de l'autoconsommation photovoltaïque (checked 2026-09-25)
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