Graubünden is one of the most important cantons for winter-strong photovoltaics, high altitudes, and large roof areas. In 2026, in addition to Pronovo, cantonal programs for winter electricity and area potential, local grid operators, natural hazards, and permit issues are relevant.
Key points at a glance
For subsidies in the canton of Graubünden, these points matter most in 2026:
- Pronovo is the national basis.
- Grisons subsidises photovoltaics for winter electricity at suitable locations.
- In addition, there is a cantonal programme to utilise the PV area potential.
- For alpine or highly visible systems, permits, landscape protection, and natural hazards are central.
- Repower, IBC Chur, ewz areas and local utilities must be checked on a grid area basis.
The specific subsidy always depends on address, system, building condition, grid operator, and deadlines of the respective program.
- As of 11.07.2026
Federal subsidy 2026 at a glance
For photovoltaic systems, there are one-off payments nationwide via Pronovo. The most important instruments are:
- KLEIV - One-off payment for systems with less than 100 kW capacity.
- GREIV - One-off payment for systems of 100 kW or more.
- HEIV - high one-off payment for systems without self-consumption from 2 kW to 149.99 kW.
- Auctions and other instruments - for larger systems without self-consumption, auctions, the sliding market premium or other subsidy instruments may apply depending on the project.
- Additional bonuses - depending on the system, winter electricity, tilt angle, or parking area bonuses may be relevant.
Deadlines are not the same for all instruments. The KLEIV is generally applied for after commissioning. For GREIV, HEIV, auctions as well as cantonal or municipal programmes, other deadlines may apply; they should be checked before ordering or starting construction.
Cantonal subsidies in the canton of Graubünden
Grisons has real cantonal PV priorities in 2026. Particularly important is the programme “Photovoltaic systems for winter electricity”, which supports winter-strong systems. In addition, there is a programme for using the photovoltaic area potential when large suitable areas are used more intensively.
These contributions cannot be equated with a simple flat rate for every standard system. Location, orientation, winter yield, output, self-consumption and the exact technical conditions of the cantonal programme are decisive.
For tourism businesses, agriculture, trade, and large roof areas, it should be checked in addition to Pronovo whether the project fits into the cantonal winter electricity or area potential programmes.
Municipal and energy supplier subsidies
In Graubünden, Repower, IBC Chur, ewz supply areas, and many local utilities are relevant. Feed-in tariffs paid by the grid operator, HKN, and grid connection capacity vary significantly; large systems should clarify the grid connection early on.
Tax notes in the canton of Graubünden
The Graubünden tax practice addresses property costs and energy-related measures in its own practice documents. For existing buildings, PV investments can generally be relevant; subsidy contributions reduce the self-borne expenditure. For new builds, replacement new builds, and value-increasing components, delineation is important. There is no uniform 10-kWp tax exemption threshold across Switzerland.
Important: Feed-in remuneration, self-consumption and subsidies are treated differently depending on cantonal tax practice. Therefore, larger systems, new builds and special cases should be clarified in advance with the tax office or fiduciary.
Feed-in remuneration and feed-in tariffs in the canton of Graubünden
Feed-in tariffs paid by the grid operator are not uniform across cantons; the specific grid operator is decisive. From 2026 onwards, if no agreement is reached between the grid operator and the system operator, the quarterly reference market price calculated by the federal government applies. Minimum remuneration rates exist for photovoltaic systems under 150 kW; for systems up to 30 kW, this rate is 6 Rp./kWh. Certificates of origin, local green electricity models and specific grid operator tariffs must be checked separately. Details on the page Feed-in Remuneration Switzerland.
Economically, self-consumption remains central. For apartment buildings, sites, and mixed-use buildings, ZEV, vZEV, and from 2026 local electricity communities (LEG) should be considered. A LEG is not an automatic return guarantee, but a new option that must fit the project technically, legally, and economically.
Permits and insurance in the canton of Graubünden
In Graubünden, alpine locations, protected areas, village landscapes, natural hazard zones and facade installations must be examined particularly carefully. Many roof installations may be subject to notification requirements, but larger or visible installations often require more specific building and spatial planning clarification. The GVG should be involved for value-adding installations and coverage issues.
In the canton of Graubünden, the Gebäudeversicherung Graubünden GVG is relevant for building insurance. Owners should clarify whether the photovoltaic system, roof renovation and any battery storage are correctly included in the insured sum and coverage.
Who benefits most from photovoltaics in the canton of Graubünden?
Typical situations can be categorised for this canton as follows:
| Situation | Assessment |
|---|---|
| Single-family home with a good roof | Often worth checking, EIV + tax deduction have a strong effect |
| Heat pump present or planned | Self-consumption particularly valuable |
| E-car present or planned | Charging times matter, EMS is worthwhile |
| Apartment building / condominium ownership | Check ZEV, vZEV and LEG from 2026 onwards |
| Commercial / Agriculture | Daily consumption often matches well with solar production |
| Small or shaded roof | Get an exact calculation |
What remains decisive is how well roof area, self-consumption, subsidies, and feed-in tariff paid by the grid operator work together.
Checklist before the quote
Before requesting a quote, this information should be available so that the subsidy and cost-effectiveness can be checked properly:
- Address, municipality and grid area determine
- Check roof area, orientation, pitch and shading
- Calculate system size in kWp and expected annual/winter yield
- Check Pronovo instrument: KLEIV, GREIV, HEIV or for large systems auction/GMP
- Grisons: Check winter electricity and area potential subsidy as well as grid connection
- Check subsidy deadlines for each programme: KLEIV usually after commissioning, local programmes often earlier
- Tax deduction: separate existing building, new build/replacement new build and subsidy contributions
- Check the feed-in tariff paid by the grid operator, HKN and any possible green electricity models with the grid operator
- Realistically calculate self-consumption, battery storage, heat pump, electric car, ZEV/vZEV and LEG
- Clarify permit, protected objects, building insurance and any private additional coverage
With this information, the specialist installer can assess subsidy, self-consumption and technical design significantly more robustly.
solar-guide.ch recommends: In Graubünden, the system should be checked not only for annual yield but also for winter yield, roof pitch, and grid connection. The cantonal programmes can be essential, especially for large or steep systems.
Conclusion
Grisons is a cantonal special case in 2026: Pronovo is the basis, but winter electricity and area potential subsidies can be decisive for suitable projects.
Via solar-guide.ch, you can have your request forwarded to a maximum of 3 suitable specialist installers. Subsidy, tax, and grid conditions should be checked directly with Pronovo, the canton, the municipality, and the grid operator before placing the final order.
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Frequently asked questions and answers
What subsidies for solar systems are available in the canton of Graubünden in 2026?
Nationally, the one-off payment via Pronovo (KLEIV/GREIV/HEIV) and from 2026 the winter electricity bonus for larger systems. Cantonal programmes focus on building renovation, heating replacement and consulting – specific contributions should be checked based on location.
Are there cantonal contributions in addition to the Pronovo subsidy?
This depends on the current programme. The main contribution for standard PV usually comes via the one-off payment; cantonal and municipal additional contributions are possible in specific cases. Overview: Energiefranken.
Is battery storage subsidised in the canton of Graubünden?
There is no comprehensive federal or cantonal subsidy for battery storage in 2026. Individual municipalities or energy suppliers may provide contributions – check via Energiefranken.
Are there municipal contributions for photovoltaics?
In some municipalities yes, with very different rates. Amounts and deadlines change; overview on Energiefranken.
Can I deduct a solar system for tax purposes?
For existing buildings, generally yes, as property maintenance. Subsidies received are deducted from the deductible amount. The cantonal tax office provides binding information.
Who helps with the subsidy application?
Your specialist installer usually handles the application to Pronovo on your behalf. Cantonal and municipal applications should be submitted by you or your installer in good time – before construction begins.
