Vaud is a large canton in western Switzerland with Lausanne, Lake Geneva, and rural regions. Standard photovoltaic systems are primarily subsidised through the national Pronovo one-off payment; cantonal special contributions may be particularly relevant for protected buildings, sensitive landscapes, or building renovations. This page outlines which subsidies apply to photovoltaics in the canton of Vaud in 2026 – from the federal level through canton and municipalities to tax deduction – and what you should pay attention to during planning.
Key points at a glance
For the subsidy in this canton, three levels are particularly important: federal subsidy, local additional programs, and tax treatment:
- Pronovo is the national subsidy basis – also in the canton of Vaud.
- Cantonal special programmes may be important for protected buildings, ISOS-A local landscapes, and architectural heritage.
- The tax deduction refers to the net costs borne by the owner after deducting subsidies.
- Feed-in tariffs paid by the grid operator are not uniform across cantons and depend on the local grid operator.
- Municipal subsidy programmes should also be checked.
- A good quote takes into account subsidy, self-consumption, battery storage, permit issues and the specific building situation.
This makes the direction clear: The specific subsidy always depends on address, system size, building type and grid operator.
- As of 11.07.2026
Federal subsidy 2026 at a glance
New photovoltaic systems are subsidised nationwide through the one-off payment from Pronovo:
- KLEIV – One-off payment for systems with less than 100 kW output (typical for single-family homes).
- 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.
- PV auctions / sliding market premium – check separately for larger systems without self-consumption.
- Winter electricity bonus (new from 1.1.2026): Supplements the one-off payment for systems of 100 kW or more with a winter yield of more than 500 kWh per kW of installed capacity. Replaces the previous altitude bonus.
Details on the programmes: Pronovo subsidy and Photovoltaic subsidies in Switzerland.
Cantonal subsidies in the canton of Vaud
For standard photovoltaic systems on existing single-family homes, the main contribution in the canton of Vaud is usually provided via Pronovo. Cantonal contributions are mainly relevant in special cases, such as for protected buildings, sensitive village landscapes, municipal programmes, or in connection with energy-efficient building renovations.
For buildings with protective measures (MH or INV) or locations in protected ISOS-A areas, the “Solaire photovoltaïque & Patrimoine” programme may be important. The subsidy does not cover the standard system itself, but the estimated additional cost between a standard PV system and a heritage- or architecture-compatible solution. The contribution is limited to CHF 20’000 per participating service or CHF 40’000 in total and cannot be combined with the solar bonus of building programme measure M-01.
In sensitive areas such as Lavaux, ISOS townscapes, or protected buildings, location and solar irradiation are only part of the assessment. Permit, visibility, roof integration, and heritage conservation requirements are also decisive.
Outlook: The canton of Vaud passed a new energy law on 3 February 2026; entry into force is expected in January 2027. This will make photovoltaic obligations for new buildings as well as certain roof renovations and extensions more important. For projects with a planning horizon of 2027, this should be taken into account at an early stage.
Municipal and energy supplier subsidies
In addition to the federal government and the canton, municipalities, cities, or energy suppliers may also offer their own subsidy programmes. Therefore, subsidies should always be checked based on the specific address. In the canton of Vaud, Romande Energie, SIL, Groupe E, and local utilities are the most relevant grid operators; feed-in tariffs paid by the grid operator and any additional programmes vary depending on the network area.
Tax notes in the canton of Vaud
For existing buildings, the investment costs of a photovoltaic system can generally be tax-relevant as an energy-saving measure. In Vaud, the net costs borne by the owner themselves are decisive; subsidies or grants received reduce the deductible amount.
For new builds and major structural changes, the tax treatment should be clarified in advance with the tax office or fiduciary office.
Income from fed-in solar power is generally subject to tax assessment. In the canton of Vaud, tax practice sets a threshold of 10’000 kWh of solar power production per year for many private single-family home systems, below which no taxation occurs. This limit refers to the amount of electricity in kWh and not to the system capacity in kWp.
Feed-in remuneration and feed-in tariffs in the canton of Vaud
Feed-in tariffs paid by the grid operator are not uniform across cantons; the grid operator is decisive. From 2026 onwards, if there is no agreement between the grid operator and the system operator, the quarterly calculated reference market price of the Federal Council serves as the basis. Minimum remuneration applies to photovoltaic systems under 150 kW; for systems up to 30 kW, this amount is 6 Rp./kWh. Guarantees of origin and local green electricity models should be checked separately. Details on the page Feed-in Remuneration Switzerland.
Economically, self-consumption is the decisive lever. Whether a storage system is worthwhile is clarified on the page PV system with storage; for apartment buildings and areas, association for self-consumption (ZEV), vZEV and from 2026 also local electricity communities (LEG) should be considered.
Who benefits most from photovoltaics in the canton of Vaud?
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 and municipality
- Roof area, orientation, slope, shading
- System size in kWp
- Current electricity consumption and future outlook (heat pump, electric car)
- Storage yes/no
- Solar thermal additionally?
- Tax deduction: check self-borne net costs after subsidies
- Grid operator and feed-in tariff paid by the grid operator
- Vaud: Check Pronovo, municipal contributions and “Solaire photovoltaïque & Patrimoine” for protected objects
- Check the subsidy process early: KLEIV is generally paid after commissioning; for GREIV, HEIV, as well as cantonal or municipal programmes, different deadlines may apply.
With this information, the specialist installer can assess subsidy, self-consumption and technical design significantly more robustly.
solar-guide.ch recommends: In Vaud, mainly use the federal EIV, any municipal contributions and the tax deduction on net costs. For protected buildings or sensitive landscapes, the programme “Solaire photovoltaïque & Patrimoine” should also be checked.
Conclusion
In the canton of Vaud in 2026, several levels interact: the federal one-off payment, municipal contributions, cantonal special programmes for architectural heritage, feed-in tariff paid by the grid operator, self-consumption, and tax deduction. Check specific amounts and deadlines based on your location; depending on the programme, the application is made before construction begins or only after commissioning.
Would you like to know which subsidy is available for your solar system in the canton of Vaud? Through solar-guide.ch, you can submit your request free of charge and without obligation. Your request will be forwarded to a maximum of three suitable specialist installers from your region.
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Frequently asked questions and answers
What subsidies for solar systems are available in the canton of Vaud 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 Vaud?
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.
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