Grants and subsidies for aerothermal energy in Catalonia (2025)
In Catalonia, more and more homes and companies are opting for aerothermal energy, one of the most efficient and sustainable air conditioning solutions. This system provides heating, cooling and domestic hot water (DHW) with very low electricity consumption.
The initial cost can be high, but thanks to the aid and subsidies for aerothermal energy in Catalonia, it is possible to reduce the investment by up to 85%, combining different regional, municipal and state programs.
Table of Contents
Grants from the Institut Català d'Energia (ICAEN)
The ICAEN offers direct aid for aerothermal installations in homes and businesses with the aim of improving energy efficiency and reducing dependence on fossil fuels.
Amount: Up to 40% of the cost of the installation (max. €3,000 per dwelling).
Deadline: Call open until December 31, 2025 or end of funds.
Requirements:
- To be an owner or community of owners.
- Contract an authorized installation company.
- Achieve at least 30% non-renewable energy savings.
Energy efficiency tax deductions in Personal Income Tax (IRPF)
| Type of property | Deduction percentage | Maximum amount | Minimum requirement |
|---|---|---|---|
| Usual dwelling | 20 % | 5.000 € | Reduction ≥ 7% of heating and cooling demand |
| Usual dwelling | 40 % | 7.500 € | Reduction ≥ 30 % or energy rating A/B |
| Residential buildings | 60 % | 15.000 € | Reduction ≥ 30 % or energy rating A/B |
Municipal bonuses (ICIO and IBI)
- ICIO: Up to 95% discount on the Tax on Constructions, Installations and Works.
- IBI: 30-50% discounts for 3-5 years.
Municipal subsidies in Barcelona (Consorci de l'Habitatge)
Barcelona has its own programs and NextGenerationEU funds:
Energy rehabilitation of housing:
- Up to 6,000 € per house to incorporate aerotermia.
- Requires a minimum expenditure of €1,000.
- Deadline: June 30, 2026.
Rehabilitation of residential buildings:
- Up to 80% of the cost depending on the savings achieved:
- ≥ 30 % savings → 40 % subsidy (max. €6,300 per dwelling).
- ≥ 45 % savings → 65 % subsidy (max. 11,600 €).
- ≥ 60 % savings → 80 % subsidy (max. 18,800 €).
Compatibilities and possible combinations
You can combine:
- ICAEN subsidy + personal income tax deduction + municipal subsidy.
- Aerothermics with photovoltaic solar panels, to maximize savings and cover a large part of the system’s electricity consumption.
How to apply for aid for aerothermal energy in Catalonia
- Identify the call that best fits your case (ICAEN, municipal, tax deductions).
- Gather documentation: previous energy certificate, estimate, licenses.
- Apply online or in person, depending on the agency.
- Execution and justification of the work within the deadline.
Applying as early as possible increases the chances of being awarded, as many grants are awarded on a first-come, first-served basis.
Frequently asked questions about grants and subsidies for installing aerothermal energy in your home
Who can apply for grants?
Homeowners, communities of neighbors and companies based in Catalonia.
How long does it take to grant them?
Between 3 and 6 months, depending on the call.
Are they compatible with solar panels?
Yes, and in fact it is one of the most efficient combinations.
Aerothermics is a smart investment to reduce energy consumption, improve comfort and increase the value of your home.
Thanks to subsidies and deductions in Catalonia, the initial cost is considerably reduced, making it possible to amortize the installation in a few years.
Do you want to know how much help you can get? Fill in the form and our team will advise you without obligation.