United States
Los Angeles rooftop solar case study
US homeowners combine PVWatts modeling with time-of-use tariffs, tax credits, and strong sun to keep payback compelling coast to coast.
Payback / System Size
System Size
9.6 kW
Annual Yield
15,200 kWh per year
Payback
6.6 years
Avg install cost
€18,500
Annual savings
€2,800 per year
Lifetime value
€52,000
Why this city shines
On a Pasadena bungalow, a 9.6 kW array tracks 15.2 MWh annually, trimming peak TOU costs and charging two EVs.
Rooftop solar in Los Angeles works with a 9.6 kW array that delivers about 15,200 kWh yearly. Install costs near €18,500 translate to roughly €2,800 annual savings and a 6.6-year payback under typical tariffs.
Offsets roughly 6.3 tonnes of CO2 annually.