Solar panels in Vallés

We install solar panels in Vallés with a genuine study first: the sunlight your roof actually gets and your hour-by-hour electricity use. We do the installation and the paperwork with the council and the regional industry department. We are engineers based in Xàtiva and, once the system is in, we stay: we check your production every day.

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Local tax reductions in Vallés

The council in Vallés takes a share off its taxes if you install solar panels. Claiming the reduction is included in our permits and legalisation service.

15% off the IBI for 3 years

The annual property tax on the house.

Requirements: Art. 3 de la ordenanza del IBI, al amparo del art. 74.5 TRLHL: 15% de la cuota íntegra para inmuebles en los que se hayan instalado sistemas de aprovechamiento térmico (con colectores homologados) o eléctrico de la energía del sol. Duración de tres años, con efectos en el ejercicio siguiente a aquel en que se haya solicitado y justificado la instalación, sin perjuicio de la comprobación física por la inspección municipal. No se concede si la implantación es obligatoria por normativa ni en obra nueva. Es compatible con el resto de bonificaciones del impuesto. En conjuntos de viviendas en propiedad horizontal con instalación compartida, cada propietario puede aplicarla según su coeficiente de participación. Hay que aportar el certificado de la instalación hecho por instaladora autorizada, el certificado final firmado por técnico competente cuando haga falta proyecto, el pago de la tasa de obras y del ICIO, y la factura de la instalación.

Source: https://www.valles.es/sites/www.valles.es/files/ORD_fiscal_bens_immobles_IBI.pdf

Verified on 22 August 2026

Income tax deductions do not depend on your council: grants and deductions 2026.

The council procedure in Vallés

In Vallés it goes through a responsible declaration: the documentation is filed with the council and there is no need to wait for a licence decision. We file it for you, along with the rest of the paperwork until the installation is fully legalised.

Vallés publishes no specific solar procedure: the catalogue on its online office, on the Diputació platform, has seven generic procedures and none for a building licence or a declaración responsable, so the file goes in through the electronic register or a general application. What it does have of its own is the IBI discount in article 3 of its tax ordinance, with two unusual features: it can be combined with the other discounts on the tax, and in blocks of flats with a shared installation, each owner can apply it according to their share of ownership. The fee for planning procedures is 0.5% of the real, actual cost of the work, with a minimum of 7.50 euros, and the ICIO rate is 3.50%.

What we charge for filing that procedure is published: the price of the council procedure in Vallés and of the IBI reduction application.

Frequently asked questions in Vallés

Does Vallés discount the IBI for fitting solar panels?

Yes. Article 3 of the tax ordinance sets a 15% discount on the full bill for three years, for properties with a solar thermal or electric system. It takes effect in the tax year after the one in which the installation is applied for and evidenced.

Can it be combined with other discounts on the bill?

Yes. Vallés' ordinance states expressly that this discount can be combined with the other discounts on the tax, which is unusual: in several villages in the district, discounts under the same article exclude each other, and you have to pick just one.

I live in a building with shared solar panels. Do I get a share?

In Vallés, yes. When a block of flats installs solar panels as a shared installation with proper legal cover, the ordinance lets each owner apply the deduction on their own, according to their own share of ownership in the building.

What paperwork do I need to bring?

The installation certificate from an authorised installer and, if the work needed a full project, the final certificate signed by a qualified professional. To work out the cost, you also need to provide the fee payment for the works and the ICIO, along with the installation invoice.

And the tax on the building work in Vallés?

Vallés' ICIO ordinance includes no discount for solar power, so the municipal discount here is the IBI one. The ICIO rate is set at 3.50%, and the fee for planning procedures is 0.5% of the real cost of the work, with a minimum of 7.50 euros.

What we do in Vallés

The study of your roof and your hour-by-hour usage, the installation, and the paperwork with the council, the grid operator and the regional industry department (Industria). How we size a system and which warranties go in writing is in solar panels with a proper study; what we file with each body, in permits and legalisation.

The rest of what we do in Vallés

We climb onto a roof in Vallés for the panels and, while we are there, we handle what hangs off them:

Where else we work in La Costera

Each village next to Vallés has its own page, with its own ordinance and its own paperwork. These are the ones in La Costera:

every municipality we cover

Start with the study

Tell us where your house in Vallés is and what you pay for electricity. We will tell you what we need to study your roof and your usage. No commitment and no salesman knocking on your door.

Request your study

A Captia Technology company. Qualified, chartered engineers.