Short answer
What you need to know first.
For a PV system in Thurgau, Pronovo’s one-time remuneration is the central support route: KLEIV applies below 100 kW and GREIV from 100 kW. The cantonal programme refers solar electricity to this federal contribution; municipal programmes are separate and must be checked municipality by municipality. Conditions in force when the complete application is submitted are decisive.
Important
As of 13 July 2026, Thurgau’s funding brochure expressly states that the rates and conditions current on the application date apply. Municipal programmes may differ or contain no PV contribution; therefore check directly with the municipality and Pronovo before ordering.
Decision points
What determines the right path.
System capacity determines the federal programme: Pronovo assigns photovoltaic systems below 100 kW to KLEIV and systems from 100 kW to GREIV. This 100 kW threshold therefore affects the programme, documents and subsequent scheduling.
Thurgau’s 2026 funding programme treats solar electricity as a one-time remuneration. Pronovo is therefore the responsible body for the specific PV incentive; the cantonal programme is not a second flat PV premium.
Thurgau’s energy funding portal is a separate procedural channel: funding applications and project completions have been submitted there electronically since 1 January 2021. Portal access does not replace programme selection or an application to Pronovo.
Municipal offers are not a uniform cantonal top-up. The Office for Energy lists additional municipal energy programmes and refers to municipalities for details; whether a municipality currently supports PV must therefore be confirmed for the location.
Submission timing is financially relevant: the 2026 funding programme assesses applications under the rates and conditions in force when they are complete. Design, capacity, quotation and required evidence must align before submission.
Funding does not replace project execution. Grid connection, construction-law procedure and electrical documentation run alongside the application; the canton requires the necessary statutory permits for payment.
Sequence
How the project stays cleanly managed.
- 1
Define the systemrecord the Thurgau location, planned capacity, new system or extension and self-consumption. Pronovo’s 100 kW threshold belongs in the first project variant.
- 2
Assign the federal programmefor Pronovo’s one-time remuneration, check whether KLEIV below 100 kW or GREIV from 100 kW applies. Do not derive the specific incentive from a quotation, but from the current Pronovo programme.
- 3
Read the cantonal funding programmeuse the current Thurgau brochure and funding calculator only for the measures they describe. For solar electricity, document the reference to the one-time remuneration instead of assuming a cantonal PV amount.
- 4
Clarify the municipality separatelyif the location has a municipal energy programme, obtain written confirmation from the municipality or energy adviser on whether photovoltaics are covered, which documents apply and when an application must be submitted.
- 5
Submit complete documentsin Thurgau’s energy funding portal, complete documents set the reference date for conditions and rates. Record responsibility for the application, quotation and evidence in writing before construction begins.
- 6
Release the project in parallelmanage construction law, the grid-operator process, electrical planning and funding route in one schedule. A funding review replaces neither grid approval nor required permits.
Checklist
Questions to settle before the quote.
- Assign KLEIV below 100 kW and GREIV from 100 kW to the right Pronovo programme
- Do not confuse the cantonal energy funding portal with a Pronovo application
- Check municipal programmes directly with the municipality for their PV relevance
- Document funding conditions on the day the complete application is submitted
FAQ
Common questions on this topic.
Sources
Official sources & references.
The responsible authorities are decisive. Always verify binding details – amounts, deadlines and conditions – for your specific property against the current status of the respective authority.