Solar roof in the Canton of Basel-City
In-roof solar in the Canton of Basel-CityCHF 100 per m² of roof
In Basel-City the Aktion Solarkraftwerk doubles the contribution for a roof renovation when modules are placed on the renovated area. Free site visit, quote within 72 hours.
- Site visit: free and with no obligation
- Binding quote within 72 hours
- Calculated with the electricity price in the Canton of Basel-City: 33.2 ct./kWh
Prefer to talk?044 980 08 80
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- documented reference systems
- 29
- output of these systems
- 718.1kWp
- to a binding quote
- 72h
- is what the site visit costs
- 0CHF
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Data in the Canton of Basel-City
Solar power in the Canton of Basel-City in figures
- Household electricity price 2026
- 33.2ct./kWh
- Median of the grid operators, excluding VAT. 5.5 ct. above the Swiss median (27.7 ct.).
- Solar potential of the roofs per year
- 634GWh
- Used so far: 9.4% (Switzerland 12.8%).
- Solar potential of the façades per year
- 198GWh
- Façades yield less than roofs, but more in winter.
- Solar power per person per year
- 264kWh
- Switzerland: 866 kWh.
- of residential buildings were built before 1981
- 88.0%
- Switzerland: 59.5%. If the roof needs renovating, the solar roof can be planned in at the same time.
- hailstones are to be expected about every 50 years
- 4.0cm
- Typical value of the communes according to MeteoSwiss. Important for choosing modules and for insurance.
Example: 10 kWp in-roof system on a single-family home in the Canton of Basel-City
- Yield per yeararound 10,000 kWh
- Self-consumed (30%)3,000 kWh
- Grid power saved per yeararound CHF 1,000
- One-off payment for integrated systemsCHF 4,000
Guide value, not a quote. Assumptions: 1,000 kWh per kWp, electricity price 33.2 ct./kWh excluding VAT. Integrated systems receive a higher one-off payment than mounted ones, because the modules form the roof skin. More in our guide How much does a solar system cost?
Calculate it for my roofSources: ElCom (electricity prices 2026), Swiss Federal Office of Energy (solar potential), Energie Reporter by geoimpact on behalf of SwissEnergy (solar power, electric cars; CC BY 4.0), Federal Statistical Office (Register of Buildings and Dwellings), MeteoSwiss (hail climate), Energy Promotion Ordinance (one-off payment).
In-roof solar in the Canton of Basel-City
What applies to your solar roof in the Canton of Basel-City
Solar roofs in historic core zones and protected townscapes
Basel-City regulates the duty to notify in § 7 of the implementing provisions to the Building and Planning Ordinance. Well-adapted roof systems must be notified in, among others, numbered zones, conservation zones (Schonzonen) and the industrial and commercial zone. The notification goes to the Building and Hospitality Inspectorate at least two weeks before work starts. In protection zones and on listed buildings a building application (Baubegehren) is needed, and projects in the protection zone go to the Basel heritage protection office. The canton names no separate rule for in-roof systems. In the city, with its dense roofscapes, what matters most is the zone and the heritage status of your house.
Subsidies
For integrated systems, the federal government pays a higher one-off payment (Einmalvergütung, EIV) through Pronovo than for add-on systems. At cantonal level, the Aktion Solarkraftwerk Basel gives an additional contribution if you combine an energy-efficiency roof renovation with photovoltaics. The contributions are CHF 50 per square metre of renovated roof area, doubled to CHF 100 where modules are installed. For facades the amounts are CHF 70 and CHF 140. The scheme runs as long as the approved budget lasts.
Plan the roof renovation and solar roof together
Around 88% of the residential buildings in Basel-City were built before 1980. If you are renewing the roof anyway, you can plan insulation, underlay and in-roof modules in one order and submit the application before construction starts. In 2025 the cantonal government (Regierungsrat) also referred a revised solar offensive to the Grand Council (Grosser Rat), with a solar obligation for existing buildings with 100 m² or more of suitable roof area and a transition period of 15 years. At the site visit we tell you which status applies to your building. For roof systems, the scheme counts the area with good and best suitability according to the canton’s solar cadastre, and we check this for your roof in advance.
Grid operators
Electricity prices 2026 in the Canton of Basel-City
What power from the grid costs is set by your grid operator. The more expensive grid power is, the more every kilowatt hour you use from your own roof is worth.Swiss median: 27.7 ct./kWh.
| Grid operator | Communes | ct./kWh |
|---|---|---|
| IWB Industrielle Werke Basel | 3 | 33.2 |
Source: ElCom, Federal Electricity Commission, tariffs 2026.
The free site visit
One appointment at your home. Then you know everything.
A project manager from our team visits you and checks three things. No sales show, no obligation. Afterwards you receive a binding quote with yield, subsidies and payback.
01Roof
Area, orientation, pitch, condition of the roof covering and shading.
02Electrical system
Grid connection, distribution board and space for inverter and battery.
03Your consumption
Electricity bill, car, heating, plans. From this we calculate yield and subsidies.
How your project runs
Request
Tell us briefly about your building and your goal. Online or by phone.
Site visit
We check your roof, electrical system and consumption at your home. Free of charge.
Quote in 72 hours
Binding and transparent, with yield, subsidies and payback.
Permit and subsidies
We handle the notification procedure, the grid operator and Pronovo.
Installation and commissioning
Our own installers, a fixed date, final inspection with you on the roof.
Step 1 takes one minute. We take care of the rest.
Google reviews
What our customers say about us.
5.0
Unabridged and unedited, straight from our Google profile. The reviews are in German.
All reviews on GoogleWir sind sehr zufrieden mit unserer Wallbox für unser E-Auto.
Cemil B. · October 2026
Wir können Solarinnovation.ch und insbesondere Jordan für seine kompetente Beratung und perfekte Umsetzung als zuverlässigen Partner für nachhaltige Energielösungen aus einer Hand von Herzen weiterempfehlen. Er hat uns mit seinem umfangreichen Fachwissen von der ersten Beratung bis und mit der Umsetzung kompetent begleitet. Er hat alle Fragen immer verständlich erklärt. Wir sind mit der Indach-Solaranlage, kombiniert mit einem Speicher sehr zufrieden.
Daniel · August 2026
Die SolarInnovation GmbH hat mich durch ihre sehr flexible und kompetente Beratung und Arbeitsausführung sehr überzeugt!
Frederic L. · September 2025
Eine sehr seriöses Firma. Danke Aulson, Danke Jorden.
Alex I. · August 2025
Top Service und super Beratung! Unsere Solaranlage am linken Zürichseeufer läuft perfekt, produziert mehr Strom als erwartet und sieht auch noch toll aus. Absolut empfehlenswert!
Marc W. · August 2025
Built near you.
29 projects, 718.1 kWp in total. From Zumikon and Lachen we work all over German-speaking Switzerland, most often in the cantons of Zurich, St. Gallen, Schwyz and Aargau.
Canton of Zurich
- Rüti41.1 kWp
- Zürich26.6 kWp
- Zürich6.8 kWp
- Zürich10.9 kWp
- Gossau ZH7.7 kWp
- Zollikerberg17.7 kWp
- Ebmatingen16.9 kWp
- Ebmatingen17 kWp
- Zürich7.5 kWp
- Maur6.9 kWp
- Herrliberg14.8 kWp
- Herrliberg12 kWp
- Meilen17.2 kWp
- Bachs10.2 kWp
Canton of St. Gallen
Canton of Schwyz
Canton of Aargau
- Staffelbach16 kWp
- Reinach AG20.7 kWp
- Berikon19.8 kWp
- Oberkulm20.7 kWp
Canton of Lucerne
Canton of Zug
Frequently asked questions
Before you get in touch.
Is the site visit really free?
Yes. The visit and the quote cost you nothing and commit you to nothing. You only decide once you hold the binding quote in your hands.
How much does Basel-City pay for a solar roof with a roof renovation?
The Aktion Solarkraftwerk pays CHF 50 per square metre for a renovated roof. This doubles to CHF 100 where you fit PV modules on the renovated roof.
How large must the system be in Basel-City for the Aktion Solarkraftwerk?
For roof systems, the subsidy only applies if 90% of the area with good and best suitability according to the solar cadastre, or the technically feasible potential, is covered. The application must arrive before construction starts.
Do I need a building application (Baubegehren) in a Basel protection zone for in-roof solar modules?
In protection zones and on listed buildings, a building application (Baubegehren) is still needed. In the conservation zone (Schonzone), a notification is enough for solar systems. We clarify the zone before planning.
Is an in-roof system watertight?
Yes, if it is properly planned and installed. Together with flashings and seals, the modules form the water-bearing layer. Underneath, an underlay membrane remains as a second safeguard. Connections at the chimney, ridge and eaves are the critical points. We work with particular care there.
Can I convert my existing roof to in-roof?
Yes, but it only makes sense as part of a roof renovation. The tiles have to come off anyway then. If your roof is still in good condition, an on-roof system is usually the more economical solution. We tell you honestly during the site visit what is worthwhile.
Will an in-roof system be approved in a historic core zone?
Often more readily than an on-roof system, because it looks calmer. For protected buildings and in historic core zones, a permit is required, and the commune decides case by case. We clarify the situation for your address and submit the documents.
Which regions do you cover?
All of German-speaking Switzerland. We build most often in the cantons of Zurich, St. Gallen, Schwyz and Aargau. Our locations are in Zumikon ZH and Lachen SZ.
From one company
Goes well with
The first step
We come to you. Free of charge.
We check your roof, electrical system and consumption. Afterwards you know what is possible on your roof, what it costs and which subsidies you receive. The binding quote follows within 72 hours.
- Free and with no obligation
- Quote within 72 hours
- Subsidies pre-financed on request
