Background
#Photovoltaic incentives in Thurgau normally begin with Pronovo’s one-time remuneration: KLEIV applies to systems below 100 kW and GREIV from 100 kW.
Thurgau’s funding programme refers solar-electric systems to this one-time remuneration, while the cantonal energy funding portal has accepted funding applications and project completions electronically since 1 January 2021. Additional municipal energy programmes are separate and must be checked directly with the municipality for a specific PV connection.
The conditions and rates in force when complete documents are submitted determine a funding decision, so a quotation is not funding confirmation. For large systems, self-consumption concepts or combinations with other measures, clarify the funding route in writing before ordering.
What counts for funding
#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.
The process in six steps
#Tick off for your project
Define the system
record the Thurgau location, planned capacity, new system or extension and self-consumption. Pronovo’s 100 kW threshold belongs in the first project variant.
Assign the federal programme
for 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.
Read the cantonal funding programme
use 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.
Clarify the municipality separately
if 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.
Submit complete documents
in 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.
Release the project in parallel
manage construction law, the grid-operator process, electrical planning and funding route in one schedule. A funding review replaces neither grid approval nor required permits.
Checked for your roof, not just read up on
Once the framing is clear, a property-specific check with roof, grid and documentation is worthwhile.
Frequently asked questions
#Sources
#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.