United States
Denver 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
7.8 kW
Annual Yield
11,500 kWh per year
Payback
7.0 years
Avg install cost
€16,000
Annual savings
€1,950 per year
Lifetime value
€39,500
Why this city shines
Denver row homes run 7.8 kW designs with 11.5 MWh output, riding high elevation sun and Xcel net-metering.
Rooftop solar in Denver works with a 7.8 kW array that delivers about 11,500 kWh yearly. Install costs near €16,000 translate to roughly €1,950 annual savings and a 7.0-year payback under typical tariffs.
Offsets roughly 4.8 tonnes of CO2 annually.