Energy Efficiency Grants in Catalonia: Which Subsidies Can You Apply For?

Investing in energy efficiency improvements for your home—whether by installing solar panels, upgrading windows, fitting an aerothermal system, or insulating the facade—not only reduces your monthly bills but also increases your property's value. Furthermore, various public grant schemes are available that can significantly lower your initial investment.

From European funds to local tax rebates, here is a clear overview of the current financing tools and fiscal savings available in Catalonia.

1. Next Generation EU Funds (European & Regional Level)

Through the European Union’s recovery funds, managed in Catalonia via the ICAEN (Institut Català d'Energia) and the Department of Territory, the most significant grant programs in recent years have been established for residential building renovations:

• Building and Housing Rehabilitation Lines (Programs 3, 4, and 5): Aimed at works that achieve a direct reduction in non-renewable primary energy consumption (such as high-performance window replacement, facade insulation, or installing aerothermal heating and underfloor heating). Depending on the percentage of energy savings achieved, grants can cover between 40% and 80% of the intervention cost.
• Self-consumption and Storage: Programs specifically targeted at solar panel installations and battery storage in residential properties.

Important note: Since these funds have budget allocations tied to specific periods and application calls, direct fund availability can vary depending on whether submission windows are currently open, on a waiting list, or in a budget reallocation phase.

2. Income Tax Deductions (IRPF - National Level)

Beyond direct subsidies (which often take months to process and receive), the most direct and reliable route to financial savings comes through national tax deductions on your annual income tax return (IRPF).

You can benefit from deductions ranging from 20%, 40%, and up to 60% on your tax bill for works carried out on your primary residence or rented property, provided that a reduction in heating/cooling demand or non-renewable energy consumption is proven via an Energy Performance Certificate (EPC) issued before and after the renovation.

• Example: Replacing old windows with high-performance gas-filled glazing or installing an aerothermal system allows you to easily qualify for the 40% or 60% tax deduction brackets.

3. Local Tax Rebates (Municipal Level)

Municipalities across Catalonia actively promote the energy transition by offering discounts on direct local taxes. These benefits are applied locally once the project documentation is submitted:

• IBI Rebate (Property Tax): Most Catalan municipalities (such as Barcelona, Granollers, Sabadell, Terrassa, Girona, etc.) offer property tax discounts of up to 50% for 3 to 5 years for installing solar self-consumption systems or comprehensive insulation upgrades.
• ICIO Rebate (Construction & Works Tax): Discounts of up to 95% on municipal building permit fees when the works are dedicated to energy efficiency or solar energy integration.

How We Help You at vull.cat

At vull.cat, we value transparency: our core strength lies in engineering, technical design, and smart home integration. We handle your energy efficiency assessment, dimension your aerothermal or solar systems, and coordinate the installation with our trusted partners.

To support your paperwork (such as issuing Energy Performance Certificates or the technical reports required for grant and tax deduction claims), we provide all the comprehensive technical documentation for your project so that you or your tax advisor can submit your applications with complete confidence.

Want to discover your home’s potential for savings? Get in touch and let's arrange an on-site diagnosis!