Solar installation for detached house: costs, size and benefits
A solar installation reduces your electricity costs and makes you more independent. Allow 6.5 m² of roof area per kWp.
Request free quote8–12 kWp
Typical system size
19'000 to 24'000 CHF
10 kWp gross investment
9'500 to 10'000 kWh/year
10 kWp production on the Plateau
25 to 30 years
Module lifespan
Size calculator
How large should your solar installation be?
The optimal size depends on electricity consumption, roof area and future demand.
If you have a heat pump or an electric car, a larger system is often worthwhile. Use the calculator to get a first recommendation.
Interaktiv
Wie gross sollte Ihre Anlage sein?
Wählen Sie Ihren Jahresverbrauch und Optionen.
Jahresverbrauch
Zusätzliche Verbraucher
Empfehlung für Ihren Haushalt
Gesamtverbrauch: 4'500 kWhAnlagengrösse
4–5.2 kWp
Dachfläche
26–34 m²
Bruttokosten
7'200–15'600 CHF
Richtwerte. Die Einmalvergütung wird individuell durch Pronovo berechnet.
Indicative values, updated September 2026. Sources: Pronovo, ElCom, Swissolar.
Prices from independent installers, turnkey including installation and VAT, without battery storage. Local electricity utilities generally charge more.
Costs
What does a solar installation for a detached house cost?
A 10 kWp system needs about 65 m² and costs 19'000 to 24'000 CHF. Gross costs are an orientation; subsidies and tax deductions are assessed separately for each project.
Prices from independent installers, turnkey including installation and VAT, without battery storage. Local electricity utilities generally charge more. Indicative values, updated September 2026. Sources: Pronovo, ElCom, Swissolar.
Electricity production
How much electricity does a solar installation produce?
On the Swiss Plateau, a 10 kWp installation produces 9'500 to 10'000 kWh per year.
Profitability
Is a solar installation for a detached house worth it?
Yes, in most cases a photovoltaic installation is worthwhile in the long run. Through self-consumption and electricity savings, the system pays for itself over the years.
Subsidies
Subsidies for solar installations in Switzerland
The one-time payment is calculated individually by Pronovo. Additional cantonal subsidies and tax deductions may apply. Check current conditions with Pronovo →
Battery storage
With or without battery storage?
Without storage
More affordable option
With battery storage
Recommended for high consumption
Cost factors
What factors influence the costs?
Roof size and orientation
South-facing roofs deliver the best performance. East/west roofs are also very suitable.
System size
Larger systems are cheaper per kWp — economies of scale affect the price.
Technology and components
Modules, inverters and optional storage influence costs and performance.
Installation effort
Complex roofs or difficult access increase the installation effort.
Calculation example
Example: Solar installation for a detached house
FAQ
Frequently asked questions about solar installations for detached houses
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Compare offers and optimise costs
Solar installation prices vary greatly depending on the provider. Via PvPro.ch you receive up to 3 free quotes from certified installers in your canton.
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