In Frauenfeld, feed-in is handled by Thurplus, the city's utility. In 2026, Thurplus switched from the fixed tariff (previously 13.7 Rp.) to the federal government's quarterly reference market price, with the statutory minimum remuneration of 6 Rp./kWh for systems up to 30 kW – which currently applies, because the market price is below it. The guarantee of origin isn't included in the remuneration but is sold separately via the customer portal. On top there are the federal one-off feed-in incentive, the Canton of Thurgau's incentive programme, and the tax deduction. (As of: July 2026)
Key points in brief
- Your grid operator in Frauenfeld is Thurplus, the utility of the cantonal capital.
- Since 2026, Thurplus has remunerated the reference market price with a 6 Rp./kWh minimum remuneration up to 30 kW – the former fixed tariff of 13.7 Rp. is history.
- The guarantee of origin (GO) isn't included at Thurplus – it's sold separately via the customer portal.
- The Canton of Thurgau runs an incentive programme; the base is also formed by the federal one-off feed-in incentive and the tax deduction.
- Cost guideline for a single-family home: around CHF 22,000–30,000 for 10 kWp (non-binding, the quote is decisive).
- As the cantonal capital, Frauenfeld combines a historic old town on the Murg with residential neighbourhoods and large commercial and administrative roofs.
Quote for Frauenfeld
We check the roof, feed-in tariff and incentives for your address in Frauenfeld – free of charge and without obligation.
Reference: a 44 kWp system with a ZEV on two single-family homes in Wiesendangen ZH – around 10 km as the crow flies from Frauenfeld, in operation since 2023.
Calculate it yourself first? Solar calculator with official roof data → · Canton of Thurgau: costs, incentives, tariffs →
What applies in Frauenfeld: grid operator, tariff and incentives?
| Factor | In Frauenfeld | Where to look it up |
|---|---|---|
| Grid operator / feed-in tariff | Thurplus (city utility) | Feed-in tariff Thurgau |
| Cantonal incentive | Incentive programme Canton of Thurgau | Incentives Canton of Thurgau |
| Federal incentive | One-off feed-in incentive ~CHF 360/kW (integrated 400) | The one-off incentive explained |
| Tax deduction | fully deductible (existing buildings) | Solar system tax deduction |
| Guarantee of origin (GO) | separately via the customer portal | Sell GO |
Guideline values, as of: July 2026. The current provisions, or an individual quote, are binding.
How is your solar power remunerated in Frauenfeld?
In Frauenfeld, Thurplus, the cantonal capital's utility, is your grid operator. Thurplus is a textbook example of the new energy law's system change: until the end of 2025, a fixed rate of 13.7 Rp./kWh applied; since 2026, the market model applies – based on the federal government's quarterly averaged reference market price, backed by the statutory minimum remuneration of 6 Rp./kWh for systems up to 30 kW (6.2 Rp. up to 150 kW without self-consumption).
This floor is relevant in 2026: the reference market price was around 3.9 Rp./kWh in the second quarter and thus below the minimum remuneration – so the 6 centimes currently apply to every kilowatt-hour fed in. A detail with real monetary value: Thurplus does not include the guarantee of origin (GO) in the remuneration – it's sold separately via the customer portal. Anyone who skips this step gives away the ecological added value. The full system is explained in the article Feed-in tariff Thurgau; how to sell the GO is shown in Selling the guarantee of origin. Calculate over the annual average and keep self-consumption high.
What incentives do you get in Frauenfeld?
Unlike the Canton of Zurich, the Canton of Thurgau runs an Energy Incentive Programme; how it treats photovoltaics and what contributions currently apply is covered in the article Incentives in Canton Thurgau – check the current status before applying, since programmes and quotas change annually.
The base remains federal: the one-off feed-in incentive (EIV) via Pronovo, around CHF 360 per kW for mounted systems, CHF 400 per kW for roof-integrated systems (under 30 kW) – a good CHF 3,600 for a 10 kW system. On top comes the tax deduction for cantonal and federal tax. Check for any additional municipal programme by postcode on energiefranken.ch. Applications generally have to be submitted before construction starts; we handle this clarification with every quote.
Pronovo's, the canton's and the municipality's current provisions are decisive. As of: July 2026.
What does a solar system cost in Frauenfeld?
The price depends on the roof, not the postcode:
| System size | Cost guideline (turnkey, incl. VAT) | Suitable for |
|---|---|---|
| 6 kWp | CHF 16,000–21,000 | smaller single-family home |
| 10 kWp | CHF 22,000–30,000 | typical single-family home with heat pump/EV |
| with battery (10 kWp + ~10 kWh) | surcharge CHF 7,000–11,000 | high self-consumption, backup power desired |
Guideline values incl. installation and connection, as of: July 2026, non-binding; the individual quote is decisive. Details: Solar system costs and 10 kWp system.
What roofs shape Frauenfeld?
As the cantonal capital, Frauenfeld is built diversely: the historic old town on the Murg, residential neighbourhoods with single-family and apartment buildings, and – thanks to administration, the military and commerce – numerous large roof areas. Accordingly, there's a lot of potential for photovoltaics.
On large commercial and administrative roofs, the consumption profile determines profitability – where a lot of electricity flows during the day, the system covers a large part directly. On apartment-building flat roofs, joining together for self-consumption is worthwhile, so the solar power stays in the building. In the old town and in townscape-sensitive locations, well-integrated or roof-integrated systems are the better route; we clarify the requirements beforehand. On single-family-home pitched roofs, orientation, tilt and shading matter; a first indication is sonnendach.ch.
In Frauenfeld, the switch from the fixed tariff to the market model is still fresh – many clients calculated their system with 13.7 centimes. We therefore conservatively adjust the calculation to today's framework and show the GO separately, because Thurplus doesn't include it. That's exactly the item that otherwise tends to get left on the table. But as everywhere, the biggest lever for profitability is self-consumption.
Frequently asked questions
Which grid operator is responsible for Frauenfeld?
Thurplus, the cantonal capital's utility. It sets the feed-in tariff and handles the grid connection. Since 2026, remuneration follows the market price model with a 6 Rp./kWh minimum remuneration up to 30 kW.
Why did Thurplus abolish the 13.7 Rp. fixed tariff?
Because of the switch to the market price model under the new energy law – a step many Swiss utilities are currently taking. Remuneration therefore follows the electricity market instead of a fixed rate.
Do I get paid for the guarantee of origin at Thurplus?
Yes, but not automatically: the GO isn't included in the remuneration and is sold separately via the customer portal. Without this step, the added value is forfeited.
Does the Canton of Thurgau subsidise my solar system in Frauenfeld?
The Canton of Thurgau runs an Energy Incentive Programme; how it treats photovoltaics changes with the programme and the quota. Check the current status before applying. On top come the federal one-off feed-in incentive and the tax deduction.
Is a solar system worth it in Frauenfeld?
In most cases, yes. Profitability comes from self-consumption, the one-off feed-in incentive, incentives and the tax deduction – not from feed-in alone.
What does a 10 kWp system cost in Frauenfeld?
As a guideline, around CHF 22,000–30,000 turnkey (as of July 2026, non-binding). The exact price depends on the roof, mounting type and additional work.
Free initial consultation
Your quote for Frauenfeld – with an incentive check.
We check the roof, self-consumption, the Thurplus tariff and Thurgau incentives for your address – free of charge and without obligation. Planning, installation and registration are handled by our own team – solar company from Zurich, with short distances to your region.
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Sources: Thurplus (electricity feed-in, tariff publication), Swiss Federal Office of Energy (reference market price), Pronovo AG, Canton of Thurgau (Energy Incentive Programme), energiefranken.ch.
Last updated: 9 July 2026 · Author: ecoEn editorial team
