Switzerland
Geneva rooftop solar case study
Swiss feed-in premiums and high retail tariffs offset elevated capex for alpine rooftops.
Payback / System Size
System Size
7.2 kW
Annual Yield
7,600 kWh per year
Payback
6.3 years
Avg install cost
€13,600
Annual savings
€2,450 per year
Lifetime value
€34,500
Why this city shines
Lac Léman villas pair 7.2 kW rooftops with battery-ready inverters, making 7.6 MWh with predictable canton incentives.
Rooftop solar in Geneva works with a 7.2 kW array that delivers about 7,600 kWh yearly. Install costs near €13,600 translate to roughly €2,450 annual savings and a 6.3-year payback under typical tariffs.
Offsets roughly 3.2 tonnes of CO2 annually.