A solar system for a single-family house in Switzerland today typically costs between CHF 15,000 and CHF 25,000 for a 6 to 10 kWp system. The exact price depends on the system size, the roof situation and the chosen components. After deducting the one-time remuneration and tax savings, the effective cost drops significantly. As material and installation prices fluctuate, guide values are useful — you get a firm price via a free quote comparison.
Cost by system size
| System size | Annual production | Cost (gross) | After subsidy* |
|---|---|---|---|
| 5 kWp (20 modules) | approx. 5,000 kWh | CHF 12,000–15,000 | CHF 8,000–11,000 |
| 6 kWp (24 modules) | approx. 6,000 kWh | CHF 14,000–17,000 | CHF 9,500–12,500 |
| 8 kWp (32 modules) | approx. 8,000 kWh | CHF 18,000–22,000 | CHF 12,000–16,000 |
| 10 kWp (40 modules) | approx. 10,000 kWh | CHF 22,000–27,000 | CHF 14,500–19,500 |
*Rough guide values after deducting the one-time remuneration, possible municipal subsidies and tax savings. The effective cost depends heavily on the system, the region and your personal tax rate.
What influences the cost?
Several factors determine the final price of your system:
- Modules: standard modules are cheaper; premium and Swiss modules offer higher efficiency and longer warranties (up to 30 years).
- Inverter: string inverters are standard; power optimisers or micro-inverters are worthwhile with shading.
- Mounting system: a pitched roof is cheapest; flat roof (elevated), in-roof and façade are progressively more expensive.
- Additional costs: scaffolding, electrical installation, energy manager and the grid operator's connection fees.
Example calculation: 8 kWp system
An 8 kWp system clearly shows how subsidy and tax deduction work out:
- Investment cost: around CHF 20,000
- Less one-time remuneration (8 kWp × approx. CHF 360): approx. CHF 2,880
- Less tax savings (around 30%): approx. CHF 5,100
- Effective cost: around CHF 12,000
With around 8,000 kWh annual production, about 40 percent self-consumption and feeding the rest into the grid, the total return is on the order of CHF 1,500 per year — a payback in around 8 years. Calculate your individual figures with the solar calculator.
Is a battery storage worth it?
A battery storage increases the investment by around CHF 8,000 to 15,000, but raises self-consumption to 60 to 80 percent. Whether it pays off depends heavily on the electricity tariff:
- High tariff above 30 cents/kWh: the storage pays for itself in about 10 to 12 years.
- Dynamic tariffs: the storage can exploit price differences.
- Backup function: additional benefit during power outages.
5 tips for optimising costs
- Compare several quotes: price differences of up to 30 percent are not uncommon.
- Size it sensibly: plan a bit larger if an electric car or heat pump is planned.
- Make the most of subsidies: use all federal and municipal funding.
- Optimise taxes: choose the timing of the deduction wisely.
- Order together: group discounts are possible with neighbours.
How to get your personal price
All figures given are guide values for orientation. The actual cost depends on the roof, components and region. For a tailored calculation, request several no-obligation offers from vetted installers via the free quote comparison and compare price and performance directly.
