Photovoltaics for businesses in the Canton of Graubünden
Commercial solar in the Canton of GraubündenNotify 15 days ahead.
In Graubünden, businesses notify their system 15 days before installation, with a self-declaration on snow and wind. The canton subsidises winter-power PV.
- Site visit: free and with no obligation
- Binding quote within 72 hours
- Calculated with the business tariff in the Canton of Graubünden: 25.5 ct./kWh
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- documented reference systems
- 29
- output of these systems
- 718.1kWp
- to a binding quote
- 72h
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Data in the Canton of Graubünden
Solar power for businesses in the Canton of Graubünden
- Electricity price 2026 for small businesses
- 25.5ct./kWh
- Category C2 (30,000 kWh a year), excluding VAT. 0.4 ct. above the Swiss median (25.1 ct.).
- Household electricity price 2026
- 29.2ct./kWh
- Median of the grid operators, excluding VAT. 1.5 ct. above the Swiss median (27.7 ct.).
- Solar potential of the roofs per year
- 2,630GWh
- Used so far: 8.7% (Switzerland 12.8%).
- Solar potential of the façades per year
- 1,093GWh
- Façades yield less than roofs, but more in winter.
- Solar power per person per year
- 983kWh
- Switzerland: 866 kWh.
- hailstones are to be expected about every 50 years
- 2.8cm
- Typical value of the communes according to MeteoSwiss. Important for choosing modules and for insurance.
Example: 100 kWp system on a commercial roof in the Canton of Graubünden
- Yield per yeararound 100,000 kWh
- Used in the business (50%)50,000 kWh
- Grid power saved per yeararound CHF 12,800
- Federal one-off paymentaround CHF 31,800
Guide value, not a quote. Assumptions: 1,000 kWh per kWp, a business that uses power during the day, electricity price 25.5 ct./kWh excluding VAT (category C2). Large businesses often have their own tariffs. We calculate with your load profile. More in our guide How much does a solar system cost?
Calculate it for my businessSources: 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).
Commercial solar in the Canton of Graubünden
What applies to businesses with a solar system in Graubünden
Rules for businesses in Graubünden
In the Canton of Graubünden, a notification is enough for roof systems that are sufficiently well integrated and, since 1 January 2026, explicitly also for facade systems. For each building you submit the notification form with self-declaration to the commune’s building permit authority, at the latest 15 days before installation. A building permit is needed in protection zones, on cultural and natural monuments of cantonal or national importance, and for systems that do not meet the requirements.
In the self-declaration, the owner and installer confirm that the system and its substructure meet the load requirements of SIA standard 261 for snow and wind. For pitched roofs, this also covers snow guards. For hall roofs at higher altitudes, this is a key point in planning. We could not confirm a cantonal solar duty for commercial buildings. We clarify this with your commune.
Subsidies and one-off payment
The canton can subsidise photovoltaic systems designed for increased winter power production (Art. 23a Energiegesetz). According to the guide of the Office for Energy and Transport, a tilt of 60 to 90 degrees, at least 3 kWp and an application before work starts apply. Ground-mounted systems and raised systems on pitched roofs are excluded, as are companies exempt from the CO2 levy. The guide names a maximum contribution of CHF 200,000. We confirm with the office which contribution applies today before the quote.
The federal one-off payment (Einmalvergütung) through Pronovo comes on top. From 100 kWp the one-off payment for large systems applies, below that the one for small systems. We submit the applications. On request, we pre-finance the subsidies. The guide explains the costs. For tax purposes, the general depreciation rules apply to business assets. Clarify this with your tax adviser.
Self-consumption in your business
Graubünden has many grid operators, including Repower, EWZ and Rhiienergie. Commercial tariffs differ from valley to valley, so we calculate with your utility’s tariff and your load profile. Hotels, restaurants, trades and farms often have high consumption in winter. Steep modules and facades then deliver more power. A battery storage unit can cap peaks. More under solar systems for businesses.
Grid operators
Electricity prices 2026 in the Canton of Graubünden
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.
| Commune | Grid operator | ct./kWh |
|---|---|---|
| Chur | IBC Energie Wasser Chur (IBC) | 29.9 |
| Davos | EWD Elektrizitätswerk Davos AG | 23.7 |
| Landquart | Repower AG | 30.6 |
| Domat/Ems | Rhiienergie AG (rhiienergie) | 25.6 |
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 do I register a commercial system in Graubünden?
For each building you submit a notification form with self-declaration to the commune's building permit authority, at the latest 15 days before installation. In it, the owner and installer confirm the load requirements of SIA standard 261 for snow and wind.
Does Graubünden subsidise photovoltaic systems for businesses?
Under Art. 23a of the Energiegesetz, the canton can subsidise systems for increased winter power production. According to the guide, a tilt of 60 to 90 degrees, at least 3 kWp and an application before work starts apply. According to the guide, companies exempt from the CO2 levy are not eligible.
Which one-off payment does a large system receive in Graubünden?
Systems of 100 kWp or more receive the one-off payment for large systems through Pronovo. We submit the application and work out which option suits your business.
How large a roof does a commercial system need?
A rule of thumb: each kWp needs around 5 to 6 m² of module area. Commercial systems often start at 30 kWp and go well beyond. We measure what fits on your roof at the site visit.
How high is self-consumption in a business?
That depends on the business. If you work during the day, you often use a large share of the solar power directly. Businesses with cooling, machinery or ventilation in the daytime usually do better than offices. We read out your load profile data for this.
Can a solar system reduce peak loads?
In part. Solar power peaks at midday, but demand peaks can also occur in the morning or evening. A commercial battery with controls can cut peaks. We calculate beforehand whether that brings anything under your tariff.
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
