Solar success stories across Europe

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

Stockholm, Sweden

Analyzer result Payback ≈ 7.1 years

Stockholm rooftop opportunity

A Stockholm family penciled a 6 kW roof: 6.1 MWh output plus green tax refunds keeps lifetime value above EUR 27,000.

System Size 6.0 kW

Annual Yield 6.100 kWh/yr

Annual Savings € 1.700 /yr

Lifetime Value € 27.000

CO2 Offset 2.5 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Gothenburg, Sweden

Analyzer result Payback ≈ 6.5 years

Gothenburg rooftop opportunity

In Gothenburg, a 5.8 kW setup still logs nearly 6 MWh yearly thanks to cool module temps and VAT rebates.

System Size 5.8 kW

Annual Yield 5.900 kWh/yr

Annual Savings € 1.650 /yr

Lifetime Value € 25.500

CO2 Offset 2.4 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Lisbon, Portugal

Analyzer result Payback ≈ 5.7 years

Lisbon rooftop opportunity

A Lisbon duplex sized 6.5 kW to cover cooling loads, locking in 9.3 MWh per year and shrinking the bill by EUR 2,200.

System Size 6.5 kW

Annual Yield 9.300 kWh/yr

Annual Savings € 2.200 /yr

Lifetime Value € 33.500

CO2 Offset 3.8 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Porto, Portugal

Analyzer result Payback ≈ 5.9 years

Porto rooftop opportunity

Porto rowhouses lean on 6 kW arrays delivering 8.7 MWh, covering daytime appliances and feeding the Liberalized Market credit.

System Size 6.0 kW

Annual Yield 8.700 kWh/yr

Annual Savings € 1.950 /yr

Lifetime Value € 31.500

CO2 Offset 3.5 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Brussels, Belgium

Analyzer result Payback ≈ 6.4 years

Brussels rooftop opportunity

A Brussels maisonette deploys 6.2 kW and nets 6.4 MWh, trimming EUR 1,800 yearly while awaiting prosumer tariff updates.

System Size 6.2 kW

Annual Yield 6.400 kWh/yr

Annual Savings € 1.800 /yr

Lifetime Value € 28.000

CO2 Offset 2.6 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Ghent, Belgium

Analyzer result Payback ≈ 6.3 years

Ghent rooftop opportunity

Ghent terraces pair 5.8 kW designs with heat-pump water heaters, landing 6.2 MWh of self-use each season.

System Size 5.8 kW

Annual Yield 6.200 kWh/yr

Annual Savings € 1.650 /yr

Lifetime Value € 26.500

CO2 Offset 2.4 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Zurich, Switzerland

Analyzer result Payback ≈ 6.8 years

Zurich rooftop opportunity

Zurich penthouses model 8 kW arrays that keep elevators, EV chargers, and base load powered off 7.8 MWh yearly.

System Size 8.0 kW

Annual Yield 7.800 kWh/yr

Annual Savings € 2.600 /yr

Lifetime Value € 36.000

CO2 Offset 3.4 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Geneva, Switzerland

Analyzer result Payback ≈ 6.3 years

Geneva rooftop opportunity

Lac Léman villas pair 7.2 kW rooftops with battery-ready inverters, making 7.6 MWh with predictable canton incentives.

System Size 7.2 kW

Annual Yield 7.600 kWh/yr

Annual Savings € 2.450 /yr

Lifetime Value € 34.500

CO2 Offset 3.2 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Vienna, Austria

Analyzer result Payback ≈ 6.1 years

Vienna rooftop opportunity

Vienna townhomes approved 6.7 kW installs that power heat pumps and regional rail commuters' EVs.

System Size 6.7 kW

Annual Yield 7.300 kWh/yr

Annual Savings € 1.950 /yr

Lifetime Value € 30.500

CO2 Offset 3.0 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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Graz, Austria

Analyzer result Payback ≈ 5.6 years

Graz rooftop opportunity

Graz hillside villas lean 6.4 kW arrays toward the Mur valley sun, producing 7.6 MWh for under EUR 10,300 installed.

System Size 6.4 kW

Annual Yield 7.600 kWh/yr

Annual Savings € 2.000 /yr

Lifetime Value € 31.500

CO2 Offset 3.1 tCO2/yr

Modeled with Solarhome tariffs and 2025 utility assumptions.

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