ISDE subsidy checker 2026
Select your measure and situation to immediately see the indicative ISDE subsidy amount from the government. We will handle the application for you free of charge.
The ISDE subsidy for heat pumps is indicatively between approximately € 1,500 and € 3,000, depending on capacity and type.
For solar water heaters, the ISDE contribution is indicatively between approximately € 700 and € 1,800.
For insulation, a fixed amount per m² applies. You often need to combine at least two measures for the highest contribution.
This is an indicative calculation based on the ISDE scheme 2026 (RVO). The exact subsidy depends on the appliance, the capacity, the stated energy label and the current list of eligible appliances. We check your application for free and handle the entire ISDE application for you.
ISDE subsidy without the hassle
- We apply for you. You do not need to submit anything yourself, we handle the complete ISDE application with the RVO.
- Only certified appliances. We only install equipment that is on the ISDE appliance list, ensuring you remain eligible for the subsidy.
- Combine smartly. Heat pump + insulation together often provide the highest total contribution.