Switzerland
Zurich rooftop solar case study
Swiss feed-in premiums and high retail tariffs offset elevated capex for alpine rooftops.
Payback / System Size
System Size
8.0 kW
Annual Yield
7,800 kWh per year
Payback
6.8 years
Avg install cost
€14,500
Annual savings
€2,600 per year
Lifetime value
€36,000
Why this city shines
Zurich penthouses model 8 kW arrays that keep elevators, EV chargers, and base load powered off 7.8 MWh yearly.
Rooftop solar in Zurich works with a 8.0 kW array that delivers about 7,800 kWh yearly. Install costs near €14,500 translate to roughly €2,600 annual savings and a 6.8-year payback under typical tariffs.
Offsets roughly 3.4 tonnes of CO2 annually.