European Solar Case Studies | Rooftop PV Payback Examples – SolarHomeTech

Solar success stories across Europe

From compact city homes to coastal villas, these snapshots show how the analyzer guides real-world decisions.

Boston, United States
Analyzer result Payback ≈ 7.3 years

Boston rooftop opportunity

Cambridge triple-deckers model 8.4 kW, banking SMART-style credits and 11.2 MWh to cover heat pumps.

System Size 8.4 kW
Annual Yield 11.200 kWh/yr
Annual Savings € 2.050 /yr
Lifetime Value € 36.500
CO2 Offset 4.6 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Minneapolis, United States
Analyzer result Payback ≈ 7.0 years

Minneapolis rooftop opportunity

Twin Cities ramblers run 8 kW arrays; 10.5 MWh per year plus net-metering keep ROI strong even with snowy seasons.

System Size 8.0 kW
Annual Yield 10.500 kWh/yr
Annual Savings € 1.850 /yr
Lifetime Value € 34.500
CO2 Offset 4.4 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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