Grants for Rehabilitation and Energy Efficiency in Catalonia
Last update: April 29, 2026
Content revised according to current calls for proposals from ICAEN, the Agència de l’Habitatge de Catalunya and NextGenerationEU funds.
In Catalonia there is currently an unprecedented amount of subsidies for those who want to reduce their energy consumption. The European NextGenerationEU funds, managed through the ICAEN, the Agència de l’Habitatge and the municipal consortia, finance up to 80% of the rehabilitation of your home or business, from the change of boiler to the complete rehabilitation of the building.
The deadline is not indefinite: Next Generation programs must be justified to the Ministry by June 2026, making the next few months the most important window for action.
What are the subsidies for energy efficiency in Catalonia?
These are direct economic incentives aimed at modernizing the housing stock. In 2026, these programs not only cover the installation of renewable technology, but also the rehabilitation of the envelope (facades, roofs and replacement of windows).
Which organizations manage the grants in Catalonia?
Funding is distributed among several agencies, and knowing which one corresponds to each action is key to avoid losing subsidies:
- ICAEN (Catalan Energy Institute)ICAEN is the reference entity for photovoltaic self-consumption, thermal renewables, aerothermal energy and efficiency in SMEs. The ICAEN coordinates and publishes calls for energy aid with regional, state and European funds, supervising that the requirements are met and that the impact on sustainability is maximized.
- Catalan Housing Agency (Agència de l’Habitatge de Catalunya)The Agency manages the calls for proposals for integral residential rehabilitation in buildings and homeowners’ associations. It has an open call for European grants for housing rehabilitation programs with Next Generation funds.
- Consorci de l’Habitatge de Barcelona and Consorci MetropolitàFor homeowners in Barcelona city or the metropolitan area, they manage grants from the European Next Generation funds to rehabilitate homes with energy efficiency criteria. TRAC
- City councils (Barcelona, Girona, Tarragona, Lleida): Some city councils have their own rehabilitation programs and provide for ICIO exemptions or IBI rebates. In Barcelona city, grants for the replacement of windows and air conditioning systems can reach up to €6,000 per dwelling with a simplified online procedure.
Our job is to coordinate all these channels in order to present a complete and compatible file, avoiding errors or double financing problems.
Energy Efficiency Aids in force in Catalonia
| Program | Main Action | Maximum % Subsidy |
| Program 4 | Improvement of windows, insulation and enclosures | 40% (up to 3,000€) |
| Self-consumption (NextGen) | Installation of Solar Panels and Batteries | Up to 45% (depending on power) |
| Program 3 / 4 | Aerothermics and Efficient Air Conditioning | 40% – 80% (depending on savings) |
| Program 3 | Integral Rehabilitation (Facades + Roofs) | 80% (up to 18.800€/house) |
| MOVES III Plan | Recharging Points (Homes and Companies) | 70% – 80% |
Note: Percentages may vary depending on final certified energy savings and availability of funds at the time of application.
Boiler replacement: replacement with aerothermal or other thermal renewables
Since January 2025, public subsidies for boiler replacement have undergone a major change: the new European ErP directive excludes from subsidies boilers that run exclusively on fossil fuels such as gas, diesel or coal. In practice, this means that subsidies are concentrated on heat pumps (aerothermal), hybrid systems, solar thermal and biomass.
In Catalonia, the ICAEN offers specific aid for aerotermia: up to 40% of the cost of the installation with a maximum of €3,000 per dwelling, requiring a minimum expenditure of €1,000. Barcelona city goes further: up to €6,000 per dwelling to incorporate aerothermal energy.
In addition, the IRPF deduction for energy efficiency can range from 20% to 60% depending on the level of improvement accredited with energy certificates, and is compatible with direct subsidies.
→ See complete guide: Aids for aerothermal energy in Catalonia.
Window replacement and envelope improvement
Program 4 of the Next Generation funds covers up to 40% of the cost of window replacement, with a maximum of €3,000 per dwelling and a minimum expenditure of €1,000. If you are in the municipality of Barcelona, municipal grants can supplement this amount, bringing the total amount up to €6,000 in some cases. New windows must achieve at least a 7% reduction in heating demand or 30% savings in non-renewable primary energy, or meet current insulation standards. Energy performance certification is required before and after the work.
The deadline to execute and justify the work is 12 months from the award. The works must be completed before June 30, 2026.
Includes grants for the replacement of high-efficiency windows and doors, reducing thermal demand.
Solar panels and photovoltaic self-consumption
In Catalonia there are three types of incentives for the installation of solar panels: direct Next Generation subsidies managed by the ICAEN, state deductions in the IRPF of up to 60% depending onthe level of energy improvement, and municipal bonuses in IBI (up to 50%) and ICIO (up to 95%).
Regarding the status of the ICAEN direct calls: the regional call closed with no funds available, although the European Commission has approved a second phase until 2026 that will first address the waiting list. In the meantime, personal income tax deductions and municipal subsidies continue to be fully operational.
→ See complete guide: Grants for solar panels in Catalonia.
Integral rehabilitation of the building
This is the line with the greatest subsidy potential. The amounts range from 40% to 80% of the eligible cost, depending on the type of action and the characteristics of the applicant. Barcelona Reforms
Beneficiaries receive a base grant of 35% of the cost, with the possibility of obtaining an additional 15% if they rehabilitate public housing, if the buildings are located in urban regeneration areas or if they manage to improve the energy rating to A or B.
Energy Communities
An energy community allows neighbors, cooperatives or local entities to generate and share renewable energy collectively. In Catalonia there are two ways of public funding to set them up:
- The ICAEN-SolarCoop line, which finances the legal model and technical documentation (not the equipment).
- The state program CE IMPLEMENTA of the IDAE, which does cover the installation when there is real citizen participation and storage. The calls for proposals open in short windows, so the documentation must be prepared before they are published.
→ See complete guide: Grants for energy communities in Catalonia.
Electric mobility (MOVES III Plan)
Incentives for the installation of recharging points in community parking lots, companies and private homes. Managed by the IDAE with state funds, and compatible with municipal subsidies.
→ See complete guide: Aid for recharging points in Catalonia.
Eligibility requirements for energy subsidies
Regardless of the program, there are three requirements that are repeated in virtually every call for applications:
- Energy Efficiency Certificate (EEC): It is mandatory to have a certificate prior to the works and another one afterwards to accredit the improvement achieved. Without it, the subsidy cannot be justified.
- Minimum demonstrable energy savings: Most lines require a reduction in non-renewable primary energy consumption of at least 30%, although some specific actions (such as window replacement) allow a 7% reduction in heating demand.
- Authorized installation company: Installations must be carried out by authorized companies. Invoices and bank payment receipts are essential to close the file.
At Fotovol, we make the initial certificate, propose the measures and calculate the expected savings before submitting anything.
Tax compatibilities: how to accumulate more aid
An advantage that many owners are unaware of: direct subsidies are compatible with other tax reductions.
IRPF deductions are compatible with direct subsidies; only what is actually paid out of pocket is deducted. In addition, some municipalities have their own rehabilitation programs and provide for ICIO exemptions or IBI rebates. The usual combination in well-managed projects: direct subsidy + IRPF deduction + municipal IBI rebate.
Deadlines: why act before funds run out?
This is the most important factor affecting the decision: the funds are not unlimited and are granted on a first-come, first-served basis. Next Generation programs must be justified to the Ministry by June 2026.
To ensure compliance with this deadline, calls awarded after May 2025 have a deadline of April 8, 2026 for execution and justification.
How we manage your grant step by step
- We first listen to your case and validate the best fit call.
- Then we prepare the report and the project, with budget by items and work schedule.
- We present the file with digital signature, we attend to requirements, we coordinate the installation and legalization and, at the end, we close the justification so that you can collect the aid.
- You have a single contact person for the entire process.
do we see it on your home or community? → prepare my file
If you want an installation with guarantees and a well-processed subsidy, we will talk to you and tell you how it would look in your specific case.
Frequently asked questions about energy subsidies in Catalonia
Can I ask for assistance if I am a tenant?
You need authorization from the owner and proof that it is your habitual residence by registration.
Can homeowners' associations apply for subsidies?
Yes, they are in fact the main beneficiaries of Program 3 of the PRTR for integral rehabilitation of buildings. Agreement of the board is required and the president or property manager must act as representative.
How long does the resolution of energy efficiency grants take?
The deadline varies from 3 to 9 months depending on the agency and the program. It is therefore essential not to wait until the last minute to submit the file.
What percentage is covered by energy efficiency subsidies in Catalonia?
It depends on the program and the type of action. In rehabilitation, maximum intensities are set according to the savings achieved; the municipal bonuses (IBI/ICIO/taxes) are defined by each ordinance.
Can I combine a subsidy with IBI or ICIO?
It is usually compatible because we are talking about different areas (subsidy + tax credit). We review compatibilities to avoid double financing.
Can I change only the windows without a complete renovation?
Yes, Program 4 allows applying for assistance only for the change of carpentry, as long as the minimum energy improvement required is achieved.
What if I already had a previous grant for the same concept?
In general, it is not compatible to reapply for the same item already subsidized. Each specific call establishes the incompatibilities.