Italy
Rome rooftop solar case study
Italian simulations combine Superbonus-era pricing with 1,300+ kWh per kW resource to keep cash flow positive almost immediately.
Payback / System Size
System Size
7.5 kW
Annual Yield
9,400 kWh per year
Payback
6.1 years
Avg install cost
€11,000
Annual savings
€2,250 per year
Lifetime value
€34,000
Why this city shines
Roman villas model 7.5 kW on clay tiles, yielding 9.4 MWh each year so HVAC and EV loads stay covered with six-year payback.
Rooftop solar in Rome works with a 7.5 kW array that delivers about 9,400 kWh yearly. Install costs near €11,000 translate to roughly €2,250 annual savings and a 6.1-year payback under typical tariffs.
Offsets roughly 3.7 tonnes of CO2 annually.