Solar thermal is subsidised across most of Europe in 2026: Germany's BEG pays 30% (more with bonuses), France funds solar water heaters through CEE energy-saving premiums after removing them from single-measure MaPrimeRénov' grants in September 2026, Italy's Conto Termico 3.0 refunds up to 65%, Ireland pays a flat €1,200, and Poland and the Netherlands fund collectors too. The UK offers 0% VAT instead of a grant.
Which countries subsidise solar thermal in 2026?
Most of Europe still pays for solar thermal in 2026 — through direct grants in Germany, France, Italy, Ireland, Poland, the Netherlands and Austria, and through tax relief in the UK, Spain, France and Belgium:
| Country | Scheme | 2026 solar thermal support | Certification gate |
|---|---|---|---|
| Germany | BEG (KfW 458) | 30% of costs; up to 70% with bonuses in heating-replacement packages (80% for the lowest-income owner-occupiers) | Solar Keymark + BAFA list |
| France | CEE (MaPrimeRénov' only in whole-house renovation) | CEE premiums; single-measure MaPrimeRénov' grants for solar water heaters and combi systems ended 1 September 2026 (overseas excepted) | CSTBat or Solar Keymark; RGE installer |
| Italy | Conto Termico 3.0 | Up to 65% via a per-m² formula; fields up to 2,500 m² | Solar Keymark (UNI EN 12975/12976) |
| Ireland | SEAI | €1,200 flat solar water heating grant | SEAI-registered installer |
| Poland | Czyste Powietrze | Solar DHW collectors funded within clean-air grants | Scheme product rules |
| Netherlands | ISDE | From about €300, scaled to annual thermal yield — check the current official amounts | Device on the RVO list |
| Austria | Sanierungsoffensive | Solar bonus of up to €2,500 for a system of at least 6 m² installed alongside a heating replacement — check the current official rules | Scheme rules |
| Spain | IRPF deduction | 40% tax deduction (base €7,500) for qualifying energy renovations | Before/after energy certificate |
| UK | VAT relief | No grant, but 0% VAT on solar thermal until 31 March 2027 | MCS for quality-assured installs |
What do the flagship schemes actually pay?
Germany, Italy and France carry the biggest budgets. Germany's BEG grants 30% of eligible costs for solar thermal on its own and lets the same collectors ride heating-replacement packages, where speed and income bonuses lift total support toward the 70% cap (80% for the lowest-income households). Italy's Conto Termico 3.0 is a direct grant from GSE with a permanent €900 million annual budget, paid in a single instalment whenever the grant stays below €15,000 — and its 2,500 m² collector-area ceiling opens the scheme to hotels, industry and district projects. France now supports stand-alone solar water heating through CEE certificates rather than MaPrimeRénov' single-measure grants (Décret n° 2026-822, in force 1 September 2026): the sixth CEE period that began in January 2026 raised the national energy-saving obligation by 35%, pushing more private co-funding into renovations.
Where does tax relief replace grants?
The UK dropped solar thermal from its grant scheme but zero-rates VAT on energy-saving materials, including solar thermal, until 31 March 2027 (5% afterwards). Spain has no open national grant; its 40% IRPF deduction for renovations cutting non-renewable primary energy by at least 30% runs to the end of 2026. France applies 5.5% VAT to renewable heating alongside its grants, and Belgium holds 6% renovation VAT with regional premiums on top — Wallonia's can be substantial for low incomes; check the current official rules per region.
Do PVT hybrid panels qualify for solar thermal subsidies?
Yes — PVT hybrid collectors qualify in several major schemes. Germany funds PVT through two routes: as a solar thermal system when Solar Keymark-certified and BAFA-listed, or as the heat source of a heat pump combination. France removed hybrid collectors from single-measure MaPrimeRénov' grants on 1 September 2026 (overseas departments excepted); they remain eligible within whole-house renovations. Italy has historically handled hybrids inside its solar thermal annexes — check the current Conto Termico rules before applying. Solimpeks has manufactured PV-T hybrid panels since 2008, with the certification pedigree these schemes gate on.
What certification do subsidy schemes demand?
Solar Keymark is the common denominator: Germany requires it from an ISO 17025-accredited body, Italy ties it to UNI EN 12975/12976, and most other schemes accept it as primary proof of performance tested under ISO 9806. France adds CSTBat as a national alternative, the UK's quality route is MCS, and the Netherlands lists eligible devices on the RVO apparatenlijst. Solimpeks collectors carry Solar Keymark certification issued via DIN CERTCO and Kiwa — which is what places a product on the lists these subsidy schemes check first.
Frequently asked questions
Is there a solar thermal grant in the UK in 2026?
No — solar thermal is not funded by the Boiler Upgrade Scheme. Instead, 0% VAT applies to solar thermal materials and installation until 31 March 2027, after which the rate returns to 5%. Scotland runs separate home energy support — check the current official rules.
How much subsidy does Germany pay for solar thermal?
30% of eligible costs as the base rate, provided the collectors hold Solar Keymark and appear on the BAFA list. Within a heating-replacement package, speed and income bonuses can lift total support to the 70% cap.
Can a business get solar thermal subsidies in 2026?
Yes — Italy's Conto Termico 3.0 admits businesses with collector fields up to 2,500 m² and the Netherlands runs an ISDE business track — check the current official terms.
Do solar thermal subsidies require Solar Keymark?
In Germany and Italy effectively yes; France accepts CSTBat as an alternative; the Netherlands checks its own RVO device list. Buying a certified collector from the start is the safest route through every scheme.