A turnkey solar system for a single-family home in Switzerland currently typically costs CHF 15,000 to 30,000 before incentives, depending on size, roof and components. Guideline prices of CHF 2,000 to 2,800 per kilowatt of capacity (kWp) are common. The one-off feed-in incentive and the tax deduction noticeably reduce the net cost. (As of July 2026)
Key points in brief
- For typical single-family home systems (5–15 kWp), guideline prices are CHF 2,000–2,800 per kWp, turnkey.
- The larger the system, the lower the price per kWp – fixed costs such as scaffolding and grid connection are spread more efficiently.
- The federal one-off feed-in incentive currently covers a substantial part of the investment; in most cantons, the tax deduction comes on top.
- Roof-integrated systems cost more than on-roof systems, but replace the roof covering.
- Never compare quotes by the final price alone, but by the items included.
What does a solar system cost per kWp?
The price per kilowatt of installed capacity is the most honest benchmark, because it makes systems of different sizes comparable. The range is wide, however – a simple south-facing tiled roof is simply quicker to install than an angular roof with dormers and chimneys.
| System size | Guideline price per kWp | Typical use |
|---|---|---|
| 3–5 kWp | CHF 2,400–3,000 | small roofs, partial coverage |
| 5–10 kWp | CHF 2,100–2,700 | classic single-family home |
| 10–15 kWp | CHF 2,000–2,500 | larger single-family home, home with heat pump or EV |
| 15–30 kWp | CHF 1,800–2,300 | large single-family roofs, small apartment buildings |
| from 30 kWp | CHF 1,500–2,000 | apartment buildings, businesses |
Guideline prices as of July 2026, turnkey incl. installation and VAT, before incentives. The binding figure is the individual quote.
Notably, small systems are significantly more expensive per kWp. That's not due to the modules but to the fixed costs. Scaffolding, travel, electrical work and registrations cost almost the same for a 4 kWp system as for a 12 kWp system. That's why a rule of thumb from practice is: if the roof offers more space, full coverage almost always pays off better than a tightly sized system.
Example calculations: what do 5, 10 and 15 kWp actually cost?
Three typical scenarios we regularly encounter in the Zurich region:
| Item | 5 kWp | 10 kWp | 15 kWp |
|---|---|---|---|
| Turnkey system (guideline) | CHF 12,000–15,000 | CHF 20,000–27,000 | CHF 28,000–37,000 |
| One-off feed-in incentive (KLEIV, approx.) | – CHF 1,800 | – CHF 3,600 | – CHF 5,400 |
| Remaining investment | CHF 10,200–13,200 | CHF 16,400–23,400 | CHF 22,600–31,600 |
Guideline values as of July 2026. KLEIV rate currently around CHF 360 per kWp for roof-mounted systems up to 30 kWp; Pronovo's current rates apply. The tax deduction is not yet included here – it comes on top.
On top of that comes the tax deduction: in most cantons – including Zurich – you can deduct the investment for existing buildings from your taxable income. Depending on your marginal tax rate, that's another four-figure amount. Details in the guide Tax deduction for solar systems. When the investment pays off depends on consumption, tariff and self-consumption share – the factors are explained in the guide Payback of a solar system.
Which factors drive the price?
Two systems with identical capacity can differ in price by several thousand francs. The most common reasons:
The roof
Pitch, covering, accessibility and condition determine the installation effort. An Eternit roof from the 1970s first needs an asbestos assessment – no reputable company starts work without it. Steep roofs over three storeys need more scaffolding and more safety equipment.
The components
Between a solid standard module and a premium all-black module, there can easily be a price difference of 15 to 25 percent. The same applies to inverters. Whether it's worth it depends on your goal: maximum yield per franc, or appearance and long warranties.
The electrics
Older houses sometimes need the meter box or main supply line adapted. You only see this at the site visit – one reason why we don't rely on remote diagnosis from aerial images alone.
The region and the grid operator
Registration processes and connection requirements differ from utility to utility. The effort involved is not the same everywhere.
What additional costs are there?
A clean quote already includes these items – ask if it doesn't:
- Scaffolding: depending on the house, around CHF 2,000–5,000. In narrow residential streets, a road closure may be necessary; many only think of this when the municipality charges the fee.
- Connection application & notifications: grid connection application to the utility, notification procedure with the municipality, registration with Pronovo. The administrative part is manageable but must run smoothly.
- Meter/metering: the grid operator switches to metering with export; the arrangements differ from utility to utility.
- Acceptance & safety certificate: the independent inspection is part of completing every system.
You'll find a detailed breakdown in the article Scaffolding, grid connection & co.: the additional costs.
How much do incentives and the tax deduction reduce the cost?
The federal one-off feed-in incentive (EIV) is the largest single item: it is paid out via Pronovo after commissioning and currently amounts to around CHF 360 per kWp for the first 30 kWp of a roof-mounted system (as of July 2026; Pronovo's current rates apply). For a 10 kWp system, that's around CHF 3,600.
Depending on the location, there are also municipal contributions and the tax deduction mentioned above. The overview of all programmes for the region can be found in the Swiss incentives guide and in the cantonal contributions for Zurich.
Roof-integrated or on-roof – which is cheaper?
On-roof is the standard and the cheaper option: the modules are mounted above the existing covering. Roof-integrated systems replace the roof skin and cost more per kWp – but the calculation changes as soon as a roof renovation is due anyway, because some tiles and sheet-metal work are no longer needed. The detailed comparison: Roof-integrated or on-roof – the cost comparison.
Calculate with or without storage?
A battery storage system increases the investment by a considerable amount, but raises self-consumption. Whether it pays off depends heavily on your consumption profile and your utility's feed-in tariff – blanket answers would be unprofessional. Our assessment: What does a solar system with storage cost? and Is battery storage worth it?
How do you recognise a fair quote?
The lowest price is not automatically the best offer – and the highest is not automatically quality. Pay attention to three things: are all items listed individually (scaffolding, electrics, registrations)? Are the makes and types of modules and inverter named, not just "branded module"? And is the company still available after installation – think warranty handling and fault service?
The complete checklist: Comparing solar quotes.
During site visits in the Zurich region, we regularly see two patterns. First: roofs that were planned with minimal coverage – two years later the EV arrives and the system is too small. The extension then costs scaffolding and an electrician again. Second: quotes without itemised scaffolding costs that suddenly appear on the final invoice. Both can be avoided with clean planning from the start.
Frequently asked questions
What does a solar system for a single-family home cost?
For a typical single-family home with 5–15 kWp, guideline prices are CHF 12,000 to 37,000 turnkey, before deducting the one-off feed-in incentive and tax savings (as of July 2026). The exact price depends on roof, components and electrics – only the quote after a site visit is binding.
Why are small systems more expensive per kWp?
Scaffolding, travel, electrical work and administration are largely independent of system size. With a small system, these fixed costs are spread over fewer kilowatts – so the price per kWp rises.
Have solar system prices fallen?
Module prices have fallen significantly in recent years. Installation, scaffolding and electrical work, on the other hand, are skilled trades paid at Swiss wages – this share does not fall at the same pace. On balance, systems are cheaper today than a few years ago, but not to the extent of the drop in module prices.
How much incentive will I receive?
The one-off feed-in incentive is currently around CHF 360 per kWp for roof-mounted systems (up to 30 kWp). On top come the tax deduction and any municipal programmes. The current provisions of Pronovo or your municipality apply.
Can I save money with a solar system?
In many cases, yes: self-produced electricity replaces more expensive grid electricity, and the surplus is remunerated. How quickly the investment pays for itself depends on consumption, roof orientation, electricity prices and feed-in tariff – the payback period typically falls within a range that we're happy to show you concretely in an individual calculation.
From what electricity consumption does a solar system make sense?
There is no fixed minimum. More decisive than today's annual consumption are the roof (area, orientation, shading), how much electricity is used in the house during the day – and whether a heat pump or an EV is planned, as both significantly increase self-consumption. Even with modest consumption, a system usually pays off because the surplus is remunerated; only very small systems are noticeably more expensive per kWp (see above). The solar calculator shows it using the official roof data for your address.
When does a photovoltaic system not make sense?
Rarely, but it happens: with a heavily and permanently shaded roof, when the roof covering needs renovating in the next few years anyway (then plan the renovation and system together) or when the structural situation is unclear. North-facing or east-west roofs, on the other hand, are not a reason to rule it out. An honest assessment: Does a solar system pay off? and Assessing shading correctly.
Free initial consultation
What would it cost in your case?
Guideline figures are a start – only a look at your roof delivers your numbers. We'll prepare a free, no-obligation quote with all items, transparently itemised.
Want to calculate yourself first? Solar calculator with official roof data →
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Swissolar-certified specialist company · ESTI installation authorisation (Art. 14 NIV) · in Zurich since 2017 · over 150 systems completed · a personal answer from the specialist company, no call centre
Sources: Pronovo AG (current EIV rates), Swiss Federal Office of Energy SFOE, SwissEnergy, Swissolar.
Last updated: 9 July 2026 · Author: ecoEn editorial team
