Solar panels in Milan
A 6 kWp home system in Milan is modelled to produce about 7,787 kWh a year, or 1,298 kWh per installed kWp, from PVGIS climate data at the city's coordinates. The City of Milan's Sportello Energia, delivered by AMAT, assists with the preliminary technical analysis for rooftop solar on residential condominiums, including self-consumption groups and renewable energy communities. Among our 3 Italy cities, Milan comes last on yield. Naples gets 1,449 kWh per kWp. On our model, the system saves about EUR 1,102 in year one and pays back in 5.6 years. Across the 2005 to 2023 weather record, a typical year lands within about 5% of the average.
Month by month in Milan
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 | 429 | 5.5% |
| February | 495 | 6.4% |
| March | 718 | 9.2% |
| April | 763 | 9.8% |
| May | 808 | 10.4% |
| June | 841 | 10.8% |
| July | 909 | 11.7% |
| August | 841 | 10.8% |
| September | 717 | 9.2% |
| October | 539 | 6.9% |
| November | 374 | 4.8% |
| December | 355 | 4.6% |
- Best month: July (909 kWh). Weakest: December (355 kWh), a 2.6x difference.
- June, July, August produce 33.3% of the year; January, November, December produce 14.9%.
- Year-to-year variation: about 363 kWh (4.7%, one standard deviation).
- Sunlight reaching the panels: 1,747 kWh per m² a year.
Local rules and support in Milan
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.
- City of Milan
Milan Sportello Energia supports condominium solar
The City of Milan's Sportello Energia, delivered by AMAT, assists with the preliminary technical analysis for rooftop solar on residential condominiums, including self-consumption groups and renewable energy communities.
Source: Comune di Milano, Autoproduci Energia Solare sul tetto del condominio (aggiornato il 12/05/2025) (checked 2026-09-25)
How Milan compares
Milan ranks 3 of 3 for yield among the cities we model in Italy, and 21 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) |
|---|---|---|
| Naples | 1,449 | 4.9 yrs |
| Rome | 1,429 | 5.0 yrs |
| Milan | 1,298 | 5.6 yrs |
| National reference point (country page) | 1,325 | 5.4 yrs |
Closest yield abroad: Osaka (1,299 kWh per kWp), São Paulo (1,293 kWh per kWp), Rio de Janeiro (1,340 kWh per kWp).
What moves the payback in Milan
Power you use yourself is worth the retail price (€0.29 per kWh); power you export earns €0.08. 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% | €941 | 6.6 yrs |
| 30% (our default) | €1,102 | 5.6 yrs |
| 50% | €1,426 | 4.2 yrs |
| 70% | €1,750 | 3.4 yrs |
- Net system cost after incentives: €5,707 for 6 kWp.
- Incentive modelled: €3,893 (Detrazione ristrutturazione 50% (abitazione principale, 2026 only), max deduction 48,000 EUR, over 10 yrs (IRPEF)).
- 25-year net savings at our default: €27,136.
Best panel angle in Milan
At latitude 45.46°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 | 1,298 |
| PVGIS optimum | 38° | south (186°) | 1,302 |
The optimum adds 0.3% a year over the standard roof in Milan. 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 Italy picture on our Italy solar page, or the national incentives in our Italy 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)
- Italy tariff and incentive inputs (see DATA_SOURCES.md) (checked 2026-06-21)
- Comune di Milano: Autoproduci Energia Solare sul tetto del condominio (aggiornato il 12/05/2025) (checked 2026-09-25)
Calculate your exact savings
Free, no sign-up. Your address gives payback, NPV, incentives and a 25-year cashflow for your roof in Milan.
Calculate your exact savings →