What it yields where you are
Where solar yields most in Italy
Twenty-six cities, the same source and the same calculation for all. Cagliari, first, yields 22% more than Trento, last: far less than people believe, and the reason solar pays off in the north too.
1,588
Cagliari, first · kWh/kWp
1,305
Trento, last · kWh/kWp
22%
between the first and the last
01The ranking
Twenty-six cities, the same calculation.
The yield of a system at its best orientation, in kWh a year for every kWp. Tap a city to see month by month, system sizes and orientation.
- 1CagliariSardegna1,588 kWh/kWpA 6 kW produces 9,525 kWh
- 2CataniaSicilia1,587 kWh/kWpA 6 kW produces 9,519 kWh
- 3NapoliCampania1,535 kWh/kWpA 6 kW produces 9,207 kWh
- 4PalermoSicilia1,532 kWh/kWpA 6 kW produces 9,194 kWh
- 5Reggio CalabriaCalabria1,528 kWh/kWpA 6 kW produces 9,171 kWh
- 6LeccePuglia1,518 kWh/kWpA 6 kW produces 9,105 kWh
- 7RomaLazio1,503 kWh/kWpA 6 kW produces 9,020 kWh
- 8BariPuglia1,483 kWh/kWpA 6 kW produces 8,896 kWh
- 9CatanzaroCalabria1,470 kWh/kWpA 6 kW produces 8,817 kWh
- 10PescaraAbruzzo1,420 kWh/kWpA 6 kW produces 8,520 kWh
- 11L'AquilaAbruzzo1,414 kWh/kWpA 6 kW produces 8,487 kWh
- 12CampobassoMolise1,408 kWh/kWpA 6 kW produces 8,450 kWh
- 13PotenzaBasilicata1,381 kWh/kWpA 6 kW produces 8,288 kWh
- 14GenovaLiguria1,381 kWh/kWpA 6 kW produces 8,283 kWh
- 15AnconaMarche1,377 kWh/kWpA 6 kW produces 8,265 kWh
- 16VeronaVeneto1,375 kWh/kWpA 6 kW produces 8,252 kWh
- 17FirenzeToscana1,374 kWh/kWpA 6 kW produces 8,244 kWh
- 18VeneziaVeneto1,369 kWh/kWpA 6 kW produces 8,217 kWh
- 19MilanoLombardia1,369 kWh/kWpA 6 kW produces 8,214 kWh
- 20PerugiaUmbria1,368 kWh/kWpA 6 kW produces 8,206 kWh
- 21BolognaEmilia-Romagna1,362 kWh/kWpA 6 kW produces 8,173 kWh
- 22TorinoPiemonte1,359 kWh/kWpA 6 kW produces 8,152 kWh
- 23BolzanoTrentino-Alto Adige1,354 kWh/kWpA 6 kW produces 8,124 kWh
- 24AostaValle d'Aosta1,350 kWh/kWpA 6 kW produces 8,098 kWh
- 25TriesteFriuli-Venezia Giulia1,325 kWh/kWpA 6 kW produces 7,950 kWh
- 26TrentoTrentino-Alto Adige1,305 kWh/kWpA 6 kW produces 7,828 kWh
Where these figures come from. From irradiation measured by PVGIS, the European Commission's Joint Research Centre service, averaged over the nineteen years from 2005 to 2023. The tilted-plane calculation is ours, day by day, and the figures account for the terrain around each city — measured on PVGIS too. What stays out is nearby obstacles: a tree, the building next door, a chimney. For those we need your address.
It pays off in the north too.
The gap between the first city and the last is smaller than the one between a good roof and an awkward one. The estimate on your address tells you in two minutes.