howmuchsun

Off-grid solar sizing in Italy

What a year-round off-grid system costs you in 2 cities, sized against the worst month rather than the annual average.

CityAnnual per kWWorst monthArray for 3 kWh/daySeasonal swing
Rome 1,502 kWh December 1.48 kW 1.9×
Milan 1,369 kWh December 1.88 kW 2.3×

How these figures are calculated