Solar panels in Barcelona and Girona: turnkey installation
We are solar panel engineers and installers with our own office in Mataró (Maresme), from where we serve the provinces of Barcelona and Girona with a local proximity service.
We work mainly with single-family homes, detached houses and townhouses in residential areas of the Maresme, Vallès, Baix Llobregat and La Selva, as well as with homeowner communities, coastal hotels, companies in the metropolitan area, and leading industrial and agricultural projects.
Each project is designed and installed turnkey with our own engineering and personnel: energy study, paperwork, legalisation and grant management such as the personal income tax deduction of up to 60%.
4 reasons to install solar panels in Barcelona and Girona
The provinces of Barcelona and Girona offer favourable conditions for solar self-consumption, an exceptional regulatory framework and a growing demand for clean energy. These are the four key reasons:
1. Maximum Mediterranean solar performance
The Maresme coast, La Selva and inland Barcelona and Girona receive between 2,400 and 2,600 hours of sunshine per year, with an annual solar irradiation of 1,500 to 1,700 kWh/m². This enables high and stable photovoltaic production throughout the year, with excellent yield in both single-family homes and industrial rooftops.
2. Rising electricity costs and high bills
Catalonia is among the regions with the highest electricity bills in Spain. Installing solar panels allows you to produce your own energy and reduce dependence on electricity market price rises, especially in summer due to cooling in coastal areas and in winter due to heating in inland areas.
3. Fast payback aligned with demand
High solar irradiation shortens the payback period of a photovoltaic installation: between 5 and 7 years in most residential projects, and even less when combined with heat pumps or electric vehicles. In business sectors in the Barcelona metropolitan area, with continuous daytime activity, payback can be reduced to 3-5 years.
4. Catalonia, a favourable framework for solar self-consumption
RDL 7/2026 has created one of the most complete grant frameworks in Europe for solar self-consumption in Catalonia:
- Personal income tax deduction up to 60% in single-family homes when combining photovoltaic + heat pump.
- Municipal reductions on IBI property tax (up to 50%) and ICIO building tax (up to 95%) in most municipalities of Barcelona and Girona.
- Collective self-consumption extended to 5 km (previously 2 km): new opportunities for energy communities in neighbourhoods, industrial estates and entire municipalities of the metropolitan area.
- 100% depreciation in the first year for companies investing in renewables.
All these grants are compatible with each other, which dramatically reduces the real cost of the installation.
Request a quote for Barcelona or Girona with no commitment
SunPower Performance panels: maximum warranty and durability for Barcelona and Girona
At SolarTradex we have been studying and testing solar panels for 15 years to understand what really works. This experience has led us to choose SunPower Performance panels, the premium solution ideal for homes and businesses in Barcelona and Girona, without experiments.
Triple 30-30-30 year warranty: the longest on the market
SunPower Performance offers a triple 30-year warranty unique in the photovoltaic market: 30 years product, 30 years power and 30 years service. No other manufacturer matches this commitment. It's the best possible guarantee of peace of mind for a long-term investment in your home in the Maresme, Vallès or Baix Llobregat.
Double fire safety certification
SunPower Performance panels have double fire resistance certification: Fire Class A (IEC 61730-2 / UL 790) and additional tests that exceed standard requirements. A critical safety factor in dense urban areas of the Barcelona metropolitan area and in residential municipalities of the Baix Montseny, La Selva or Vallès with a risk of forest fires.
Maximum hail resistance
SunPower Performance exceeds the hail resistance tests IEC 61215 with the most severe conditions in the sector. A key aspect in the interior regions of Barcelona (Vallès, Bages, Berguedà, Anoia) and Girona (La Garrotxa, Ripollès, Pla de l'Estany), where hailstorms are increasingly frequent and intense due to climate change.
Full black aesthetics: perfect integration with your roof
The full black aesthetics of SunPower Performance allow optimal visual integration with your home's roof. Ideal for single-family homes, detached houses, townhouses and residential developments in the Maresme, Vallès or Baix Llobregat where the image of the property is an added value.
The most recommended option for installations in Barcelona and Girona: from single-family homes in the Maresme and Vallès to interior regions with hail risk (Bages, Berguedà, Anoia, La Garrotxa, Ripollès) or dense urban areas of the metropolitan region. Discover the 7 engineering keys of SunPower Performance panels that guarantee more savings, longer lifespan and maximum safety.
Discover SunPower Performance panels
How to drastically reduce the cost of your installation in Barcelona and Girona
Personal income tax deductions up to 60% (RDL 7/2026)
Royal Decree-Law 7/2026 extends tax deductions for housing. There are three different deductions that can apply depending on the action:
1. Deduction for renewable self-consumption
Valid until 31/12/2026.
- Apartment with solar panels: Deduction of 10% on a maximum base of €5,000 (up to €500 in savings).
- Single-family home with solar panels: Deduction of 20% on a maximum base of €5,000 (up to €1,000 in savings).
2. Deduction for energy efficiency (renovation)
Valid until 31/12/2027. Applies if the work reduces at least 30% of non-renewable primary energy consumption (or achieves energy rating A or B). Requires Energy Efficiency Certificate (EEC) after the work.
- Apartment: Deduction of 40% on a maximum annual base of €7,500 (up to €3,000 in savings).
- Single-family home: Deduction of 60% on a maximum accumulated base of €15,000 (up to €9,000 in savings, spread over up to 4 years).
3. Deduction for electric vehicle charger
Independent deduction. Valid until 31/12/2026.
- 15% on a maximum base of €4,000 (up to €600 in savings). Adds to any of the above.
Tip to reach the maximum deduction: Installing solar panels alone places you in the lower bracket (10% apartment, 20% single-family). To access the 40% or 60% for energy renovation, you must reduce non-renewable primary energy consumption by at least 30%. The most common way is to combine Photovoltaic + Heat Pump (replace gas boiler with heat pump). If you also add an electric vehicle charger, you get an additional independent 15% deduction.
Collective self-consumption extended to 5 km (RDL 7/2026)
The new 5 km radius (previously 2 km) opens new opportunities for energy communities in neighbourhoods, industrial estates or entire municipalities of the Barcelona metropolitan area and in Girona regions. Ideal for homeowner communities, residential developments, towns and groups of nearby companies.
CAE discount for heat pumps
The Energy Saving Certificates (CAE) are applied as a direct discount on the quote, with no paperwork for the client. They apply exclusively to the replacement of gas boilers with heat pumps. Combining photovoltaic + heat pump allows simultaneous access to the high income tax bracket (40% apartment, 60% single-family) and the heat pump CAE discount.
100% depreciation for companies (RDL 7/2026)
Companies investing in renewable energies before 31/12/2026 can depreciate 100% of the investment in the same fiscal year, instead of the usual 15 years. Ideal for industrial warehouses in the metropolitan area, logistics companies, hotels on the Maresme coast or any company with positive tax profits.
Municipal reductions · IBI and ICIO
Many municipalities in Barcelona and Girona offer tax reductions for legalised photovoltaic installations. The exact amount and conditions depend on the fiscal ordinance in force in each municipality.
IBI reduction · Province of Barcelona
| Municipality | Reduction |
|---|---|
| Barcelona city | Up to 50% for 3 years |
| Mataró | Check current ordinance |
| Sant Cugat | Check current ordinance |
| Terrassa | Check current ordinance |
| Sabadell | Check current ordinance |
| Granollers | Check current ordinance |
| Badalona | Check current ordinance |
| Castelldefels | Check current ordinance |
IBI reduction · Province of Girona
The main municipalities of Girona (Girona city, Blanes, Lloret de Mar, Salt, Olot, Figueres) also offer IBI reductions for photovoltaic installations. Percentages and durations vary according to the current fiscal ordinance in each municipality. Check the updated conditions at your local council or ask us to verify the applicable grants for your specific case.
IAE reduction (Business Activity Tax)
Barcelona city additionally offers a 50% IAE reduction for 3 years for businesses and companies that install solar self-consumption. Other municipalities may offer similar reductions.
ICIO reduction
Most municipalities in Barcelona and Girona offer reductions on the ICIO (Tax on Constructions, Installations and Works) of up to 95% of the total for projects integrating renewables.
Reduced VAT of 10%
A reduced VAT of 10% can be applied to renovation works that include solar panels, provided these do not exceed 40% of the total cost of the work and are part of a comprehensive refurbishment or renovation.
Check the full details of all current grants on our grants and subsidies for solar panels page.
Request a quote for Barcelona or Girona with no commitment
Technical office in Mataró: local and trusted service
Our office in Mataró (Maresme), 30 minutes from Barcelona city, allows us to stay close to our clients with a local, transparent technical team specialised in solar energy. From here we serve the provinces of Barcelona and Girona with a proximity service.
SolarTradex delivers turnkey projects with in-house team, controlling every detail from the first contact to legalisation and grant management.
In addition to solar panels, in Barcelona and Girona we also install heat pumps with solar integration, electric vehicle chargers and offer industrial self-consumption solutions for companies in the metropolitan area, as well as collective self-consumption for homeowner communities.
Geographic coverage
Province of Barcelona:
- Barcelona city: all districts (Ciutat Vella, Eixample, Sants-Montjuïc, Les Corts, Sarrià-Sant Gervasi, Gràcia, Horta-Guinardó, Nou Barris, Sant Andreu, Sant Martí).
- Metropolitan area: L'Hospitalet, Badalona, Santa Coloma, Sant Adrià, Cornellà, Sant Boi, Esplugues, Sant Cugat, Rubí, Cerdanyola, Castelldefels, Gavà, Viladecans.
- Maresme: Mataró, Argentona, Cabrera de Mar, Cabrils, Vilassar de Mar, Premià de Mar, Alella, El Masnou, Sant Andreu de Llavaneres, Arenys de Mar, Calella, Pineda de Mar, Malgrat de Mar, Tordera.
- Vallès Oriental (Baix Vallès and Baix Montseny): Granollers, Cardedeu, La Roca del Vallès, Parets, Mollet, Montmeló, Montornès.
- Vallès Occidental: Sabadell, Terrassa, Castellar, Sant Quirze.
Province of Girona:
- La Selva (featured area): Blanes, Lloret de Mar, Tossa de Mar, Santa Coloma de Farners, Hostalric.
- Girona city and regions of Gironès, Baix Empordà, Alt Empordà, La Garrotxa and Pla de l'Estany.
+50
team members
+2,000
installations completed
+15
years of experience
€450,000
in grants managed
What our clients say in Barcelona and Girona
"Very professional team. We were able to run simulations of different panel configurations so that the installation matched my needs. Perfect installation and deadlines met. The plant has been producing for 20 months now without any failures and production meets predictions. I have already recovered a quarter of the initial investment. I'm very satisfied."
Fabio · Argentona, Barcelona · ★★★★★
"Both the management and the installation of the solar panels and battery have been carried out in a truly professional manner. We are very satisfied."
Juan · Mataró, Barcelona · ★★★★★
"Very professional people. Serious. Punctual. Fast. Everything great. This was the first installation I did with SolarTradex."
Jordi · Vilassar de Dalt, Barcelona · ★★★★★
Ready to start your solar project in Barcelona or Girona?
Send us a recent bill and some basic details about your home or business in Barcelona or Girona. We will prepare a proposal tailored to your consumption, with no commitment.
Request a quote for Barcelona or Girona with no commitment
✓ Response within 24-48 working hours · ✓ No commitment
ADDRESS
Av. Ernest Lluch, 32 TecnoCampus
Building 3, Floor 6
08302 Mataró, Barcelona
OPENING HOURS
Monday to Thursday from 9:00 to 18:00
Friday from 9:00 to 14:00
Phone: 931 696 597
hola@solartradex.com
Frequently asked questions
Can I deduct the installation of solar panels in my income tax return?
If you are considering an energy transition in your home during 2026, it is essential to know the IRPF (income tax) deductions introduced by the Royal Decree-Law 7/2026. These incentives are designed to reward those who drastically reduce their dependence on fossil fuels.
Yes, you can deduct part of the investment in your solar installation. The amount depends on two key factors:
- The type of home: flat in a residential building (deductions from 10% to 40%) or detached house (from 20% to 60%).
- Whether the works achieve a 30% reduction in non-renewable primary energy consumption (certified with an Energy Efficiency Certificate, EEC), giving access to the higher brackets (40% for flats, 60% for detached houses).
The winning strategy
To access the maximum deductions, the most common route is to combine photovoltaic installation with aerothermal: replacing the gas boiler guarantees exceeding the 30% threshold and activating the higher deduction bracket. In addition, if you add a charger for an electric vehicle, you add a 15% independent deduction.
Joint ownership: double deduction
If the property has two owners, the deduction can be applied twice by splitting the cost of the works in two. That is, each owner can deduct up to the maximum allowed based on the type of home and action, doubling the total tax savings.
How to achieve the maximum Income Tax (IRPF) deduction (40% or 60%)?
Installing only solar panels usually stays within the 20% bracket. To reach the 30% consumption reduction required for the top brackets, the best routes are:
- Photovoltaic + Aerothermal: Replacing your gas boiler with an aerothermal system and adding solar panels guarantees exceeding the 30% savings threshold. It also unlocks the direct discounts from the CAE certificate system.
- If you already have electric heating: In these homes, installing solar panels alone is usually enough to achieve the 30% reduction and jump to the maximum deduction.
- Adding an EV charger: Adding a charging point to the project always provides an extra independent 15% deduction.
What are the technical requirements for these Income Tax (IRPF) deductions?
The fundamental technical requirement to apply these income tax deductions is having the official technical justification corresponding to each type of action, in addition to the fact that the property cannot be used for any economic activity.
This justification is provided through official certificates and by meeting minimum improvement thresholds:
1. Energy Efficiency Certificates (CEE): They are essential to justify deductions linked to the efficiency and reduction of the property's or building's consumption:
- For demand reduction: The CEE must certify that the work has reduced heating or cooling demand by at least 7%.
- For primary consumption improvement: The CEE must show that non-renewable primary energy consumption has been reduced by 30%, or that an A or B energy rating has been reached.
2. Electrical Installation Certificates (CIE): Required for electricity generation installations:
- For renewable self-consumption: The installation of photovoltaic panels is certified through the CIE. A vital requirement is that this specific deduction is not cumulative with the building rehabilitation deductions mentioned above.
3. Physical infrastructure:
- For electric mobility: The requirement is to physically install charging points for electric vehicles (EV) that are owned by the taxpayer.
How is the 30% reduction calculated to qualify for the maximum Income Tax deduction?
The 30% reduction refers specifically to the decrease in non-renewable primary energy consumption of the property or building.
Although the regulations do not specify the exact mathematical formula, the calculation and official certification must be carried out through the Energy Efficiency Certificates (CEE). This technical certificate compares the previous and subsequent state of the property to justify access to the 40% deduction (individual homes) or 60% (entire buildings).
Note: The deduction also applies if the CEE proves that, after the works, an energy rating with an A or B label has been reached.
Technical analyses indicate that an integrated intervention, such as combining photovoltaic panels with the replacement of a gas boiler with an aerothermal system, virtually guarantees exceeding this 30% threshold.
Can Income Tax (IRPF) deductions and CAE incentives be combined?
Yes, they are perfectly compatible and can be combined in the same project. In fact, taking advantage of both incentives together is the most profitable strategy under the new framework of the Royal Decree-Law 7/2026.
When a deep energy renovation is carried out — for example combining the installation of solar panels with the replacement of a gas boiler with an aerothermal system — the client can access both benefits at the same time:
- IRPF (income tax) deduction: this technical integration allows you to exceed the 30% threshold of non-renewable primary energy consumption reduction, which catapults you into the maximum tax deduction brackets, allowing you to deduct 40% (in flats in residential buildings) or 60% (in detached houses) in your IRPF.
- Direct discount through the CAE: in parallel and in addition to your income tax return, the installation of the aerothermal system generates Energy Saving Certificates (CAE) which are now enhanced by a new multiplier coefficient. The economic value of these certificates allows the installer to apply a direct discount on the initial quotation presented to you.
Check the details on our grants and subsidies for solar panels page.
Are these deductions compatible with local Property Tax (IBI) reductions?
Yes. RDL 7/2026 legally enables municipal councils to apply reductions of up to 50% on the IBI (property tax) and rebates of up to 95% on the ICIO (construction tax) for projects that integrate renewables.
Both benefits are presented as complementary incentives alongside the state income tax deductions. There is no legal restriction preventing the simultaneous enjoyment of local and state tax advantages.
Important note on incompatibilities: The only express restriction occurs internally between the income tax deductions themselves: the 20% deduction for installing renewable self-consumption cannot be combined with the building rehabilitation deductions.
What procedures are needed to install solar panels and how much do they cost?
At SolarTradex we handle all administrative management: you only need to sign. These are the procedures and approximate costs by territory.
Procedures in Catalonia
- Prior notice of works (municipal): declares the start of the installation to the town council.
- ICIO (Construction Tax): 4% of the PEM (Material Execution Budget, excluding VAT and fees). Most town councils apply reductions of up to 95% — we request them together with the notice.
- Municipal licence fee: approximately 1.5% of the PEM. It varies by town council; some do not charge it.
- Waste management deposit: some town councils charge it (few cases) and it is usually refundable. We handle it.
- Deferred notice of works: only in municipalities with specific regulations or listed areas. Currently required in: Barcelona, Badalona, L'Hospitalet de Llobregat, Sant Cugat del Vallès, Terrassa, Sabadell, Girona, Tarragona and Reus.
- RITSIC (Register of Industrial Safety Technical Installations of Catalonia): €34.15 paid by the client.
- RAC (Self-consumption Register): no cost. Included with the RITSIC payment.
- Opening of the work centre: no cost.
Procedures in the Balearic Islands
- Register of electricity production installations: free up to 15 kWn. Above this power: €46.76. Extensions, battery additions or modifications to existing installations: also €46.76.
- The remaining municipal procedures (licence, ICIO, notice of works) follow the same logic as in Catalonia, with amounts defined by each town council.
Energy Performance Certificate (CEE) for income tax deduction
If you want to apply the income tax deduction, you need a double CEE certification (one prior, no more than 2 years old, and another after the works).
Do we handle it? Yes. The entire administrative process (permits, registrations, applications for reductions) is managed by our team. You receive your installation up and running and fully legalised.
How long does it take to collect NextGeneration subsidies and current grants for solar panels?
The timeframes depend on the type of grant, and with the new framework of the Royal Decree-Law 7/2026, the system has been simplified. The IRPF (income tax) deduction is applied in the following year's tax return (immediate effect when filing). The CAE system is the fastest incentive, as it is applied as an immediate discount on the quotation, before the works begin.
The FACTOR 2026 call in the Balearic Islands is resolved on a strict first-come, first-served basis; after the grant is awarded and the installation justified, the Government makes the payment. The municipal IBI discount depends on each town council and is usually applied from the fiscal year following the application.
Regarding the NextGeneration subsidies awarded in 2021-2022, there are still files pending resolution or payment due to administrative overload. If you have a pending NextGeneration file, we recommend consulting our specialised content on our blog for guidance on how to complete the justification and collect the subsidy.
