Self-consumption community in the Canton of Thurgau
ZEV and vZEV in the Canton of ThurgauOwn power in new builds.
In the Canton of Thurgau, clear rules on own power generation apply to new buildings. We plan the solar system and metering for your apartment building.
- Site visit: free and with no obligation
- Binding quote within 72 hours
- Calculated with the electricity price in the Canton of Thurgau: 29.4 ct./kWh
Prefer to talk?044 980 08 80
Request a free site visit
Takes 1 minute. No obligation.
- Building
- Location
- Contact
Thank you. We have your request.
We will call you within one working day to arrange the appointment.
Add details Optional
Prefer to talk now? 044 980 08 80
- documented reference systems
- 29
- output of these systems
- 718.1kWp
- to a binding quote
- 72h
- is what the site visit costs
- 0CHF
- Member of
smart-me
Partner 2025
Data in the Canton of Thurgau
Apartment buildings and solar power in the Canton of Thurgau
- Household electricity price 2026
- 29.4ct./kWh
- Median of the grid operators, excluding VAT. 1.7 ct. above the Swiss median (27.7 ct.).
- apartment buildings
- 12,215
- 17.9% of residential buildings (Switzerland 22.7%).
- Solar potential of the roofs per year
- 2,818GWh
- Used so far: 17.1% (Switzerland 12.8%).
- Solar power per person per year
- 1,511kWh
- Switzerland: 866 kWh.
- of passenger cars are electric
- 5.5%
- Switzerland: 5.5%. An EV charger turns solar power into driving power.
- of residential buildings already use a heat pump
- 31.0%
- Switzerland: 26.2%.
Example: apartment building with a 30 kWp system in the Canton of Thurgau
- Yield per yeararound 30,000 kWh
- Used in the building (50%)15,000 kWh
- Value at the grid pricearound CHF 4,410 a year
- Federal one-off paymentCHF 10,800
Guide value, not a quote. Assumptions: 1,000 kWh per kWp, several flats with heat pump or electric car, electricity price 29.4 ct./kWh excluding VAT. How the value is shared between owners and residents depends on the internal electricity price, which we set with you. More in our guide Solar power from your own roof
Calculate it for our buildingSources: 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).
ZEV and vZEV in the Canton of Thurgau
What applies in the Canton of Thurgau for your ZEV
ZEV, vZEV and LEG in brief
In a ZEV (self-consumption community), several parties on a plot share the solar power from their own roof. In a vZEV (virtual ZEV), everyone keeps their own connection, and the allocation runs through the grid operator’s metering. The LEG (local electricity community) has been possible since 1 January 2026 and also includes neighbouring plots through the public grid. Which model suits you depends on the building, the connection and the utility.
What applies in the Canton of Thurgau
The Thurgau Energy Act requires new buildings to generate part of the electricity they need themselves, or to save the corresponding amount of energy (§ 8). The Energy Use Ordinance turns this into concrete values: for new buildings, the system in, on or at the building must have an output of at least 30 W per m² of energy reference area (§ 42e). Anyone who generates less own power, or none, must additionally reduce the energy demand for heating, hot water, cooling and ventilation: by 10 kWh/m² and year if below 15 W/m², and by 5 kWh/m² and year at 15 to under 30 W/m² (§ 42f).
In addition, § 4c of the ordinance requires new buildings and major conversions to use the solar potential of suitable roof areas with photovoltaics. Areas with 85% of global irradiation or more count as suitable. Exceptions are possible for technical reasons, for heritage protection or townscape protection reasons, or where costs would be disproportionate. For apartment buildings, a ZEV is the obvious way to use this power in the building.
Grid operator and metering
In the Canton of Thurgau, many small utilities supply their communes. Each utility decides itself which meters and which registration are needed for a ZEV, vZEV or LEG. Federal law and the utility generally require metering that records the consumption of each flat separately. We obtain your utility’s requirements before the quote.
We plan the solar system, meters and contracts from a single source and, for new buildings, align the sizing with the energy certificate. Whether a battery storage system would further increase self-consumption in the building, we calculate with your consumption profile.
Grid operators
Electricity prices 2026 in the Canton of Thurgau
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 |
|---|---|---|
| Frauenfeld | Thurplus | 29.5 |
| Kreuzlingen | Energie Kreuzlingen, Stadt Kreuzlingen | 28.9 |
| Arbon | Arbon Energie AG | 29.3 |
| Amriswil | Regio Energie Amriswil (REA) | 29.4 |
| Weinfelden | Technische Betriebe Weinfelden AG | 31.9 |
| Romanshorn | Genossenschaft EW Romanshorn | 24.9 |
| Aadorf | Elektra Häuslenen | 29.3 |
| Sirnach | EW Sirnach AG | 29.4 |
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.
Must I generate solar power on a new building in the Canton of Thurgau?
Yes. The Energy Use Ordinance requires at least 30 W per m² of energy reference area for new buildings. Anyone who wholly or partly does without must reduce the building's energy demand further. We calculate both routes for your project.
Which utility is responsible for my ZEV in the Canton of Thurgau?
The Canton of Thurgau has many small grid operators, and each utility sets registration, meters and billing itself. We ask your utility for its requirements before we prepare the quote.
Can I turn an existing apartment building into a ZEV in the Canton of Thurgau?
Yes, a ZEV is also possible, and voluntary, for existing buildings. This usually needs a new or extended solar system and adapted metering. We clarify this at the site visit.
Do all tenants have to take part in a ZEV?
No. Anyone who does not want to take part stays with the electricity utility. Participation must be voluntary, and the solar power must not cost more than grid electricity. We set out how this is handled in your building in the concept.
What can the solar power cost in a ZEV?
The internal tariff must be below the grid operator's price for comparable customers. As an industry guide value, a discount of about 20 per cent applies. The rules can change. We check the current status during planning.
Do I need a new solar system for a ZEV?
Usually yes, or at least an extension. Existing systems can often be integrated if the metering and distribution are adapted. We check this during the site visit.
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
