Subsidies for solar panels: grants for their installation in each autonomous community

An updated compilation of all the grants, rebates and subsidies that you can apply for in Spain for your self-consumption installation.

Spain is one of the countries in Europe with the most hours of sunlight. This is a fact that we can and must take advantage of to continue fighting climate change and change our energy model. With this goal in mind, the government's latest move was to approve a plan for grants last June that will change the rules of the game and boost self-consumption in the regions over the next two years. These will be used to implement programmes with incentives linked to self-consumption and storage and with renewable energy sources, as well as for the implementation of renewable thermal systems in the residential sector, within the framework of the Recovery, Transformation and Resilience Plan (RTRP).

Within this roadmap, six incentive programmes for self-consumption, storage and thermal uses of renewable energies were also approved. This project will be endowed with a combined initial amount of €660 million to be financed with funds from the Recovery and Resilience Mechanism.

Several Autonomous Communities have already confirmed that they will focus on the management and development of the RTRP grants scheme and will modify those published and applied now.

While this strategy is being implemented, for now the State Housing Plan 2018-2021 is in force, which establishes the regulation of energy efficiency and sustainability. In other words, applied to self-consumption, it allows the possibility of applying for grants for the installation of solar panels in homes and buildings. Each autonomous community sets the specific requirements for accessing them.

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These grants are a key factor in determining how long it may take for a household to pay back the investment. That is why it is so important to know about them.

Broadly speaking, the subsidies available are divided into two: those applied to the cost of installation and those applied to taxes. As for the latter, there are rebates for the Property Tax (IBI) and the Construction, Installations and Works Tax (ICIO), as they are municipal taxes, these grants vary according to the town council. IBI can be subsidised for several years, with a maximum 50% subsidy. On the other hand, the ICIO is a one-time tax, so it can only be subsidised once.

These are the grants, rebates and subsidies offered by the 17 autonomous communities for the installation of solar panels:

Andalusia

  • Subsidies on the price of the installation: up to 90% of the total eligible costs: this depends on the action and the type of beneficiary (there are three types of incentive lines: sustainable construction, SMEs and smart grids).
  • Grants: up to 50% of the IBI tax for a period of time ranging from 3 to 30 years, depending on the province.
  • ICIO tax rebates: up to 95%.

You can expand this information on our page on grants from Andalusia and on the Andalusian Energy Agency.

Aragon

  • Subsidies vary depending on the power output: up to €2,000/kWp for PV installations without storage and up to €3,500/kWp with storage (storage can be storage tanks, heats exchangers, expansion vessels, pipes, valves andd connections, circulation pumps, insulation).
  • Grants: up to 50% of IBI tax for 5 years, depending on the province.
  • ICIO tax rebates: up to 75%. Depends on each Town Council.

More information.

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Asturias

  • Subsidies of €800/kWp for installations without storage and €2,000/kWp for installations with storage, with a maximum of 40% of the total budget.
  • Grants: the IBI rebate is 30% for 5 years. It is not a regional competence and depends on each municipality.
  • ICIO tax rebates: up to 30%.

More information.

Balearic Islands

  • In the Balearic Islands there is an initial differentiation between individuals (up to a maximum of 3 kWp) and companies (maximun 50kWp), with a maximum of up to 50% of the total budget for subsidies.
  • Grants: 50% discounts on IBI for 3 years.
  • ICIO: tax rebates: up to 95%.

More information.

Canary Islands

  • The Canary Islands offers subsidies of up to 45% of the total budget, provided that it does not exceed €200.000.
  • Subsidies: the IBI rebate on photovoltaic solar installations is 50% for 5 years, the duration will vary according to the specific regulation of each island.
  • ICIO tax rebates: up to 90%.

More information.

Cantabria

  • Subsidies up to 40% of the total installation budget.
  • Grants: the IBI rebate on the installation of photovoltaic solar panels between 30% and 25% for 5 years depending on the area.
  • ICIO tax rebates up to 95%. This community is targeting the rural environment, and offers grants for self-consumption for homes or agricultural facilities with a surface area greater than 30 square metres and whose investment in self-consumption is greater than €1,500. The maximum amount to be offered will be €50,000.

More information.

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Castile-La Mancha

  • Subsides of 30% of the total budget for renewable energy installations such as photovoltaic, with a maximum of €30,000 per installation.
  • Grants: the IBI rebates are 30% for 5 years.
  • ICIO tax rebates: up to 60%.

Check the requirements .

Castile and Leon

  • Subsidies for the installation of solar panels in Castile and Leon can be up to 40% of the total cost of the installation.
  • Grants: the IBI rebates are 50% for 5 years (depending on the regulations of each province).
  • ICIO tax rebates: up to 95%. There will be subsidy discounts in municipalities with less than 5,000 inhabitants and SMEs.

Check the requirements.

Catalonia

  • Subsidies on the price of the installation: grants for the installation of solar panels can amount to 50% of the total budget..
  • Grants: Catalonia offers a 50% IBI rebate on photovoltaic installations for 5 years (depending on the province).
  • ICIO tax rebates: up to 95%.

Check the requirements.

Valencian Community

  • Subsidies on the price of the installation: 20% of the total budget, with a maximum of €200,000.
  • Grants: IBI rebates are 50% for 10 years (will vary depending on each province).
  • ICIO tax rebates: up to 95%.

Check the requirements.

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Extremadura

  • In Extremadura the savings on the total installation price can be 40% of the total, with a maximum of €33,000 per installation.
  • Grants: IBI deductions are 30% for 5 years.
  • ICIO tax rebates: up to 95%.

Check the requirements.

Galicia

  • Subsidies for the installation of solar panels in Galicia are 50% of the total budget, with a maximum amount of €60,000.
  • Grants: the IBI deduction for the installation of photovoltaic panels is 50% for 3 years (depending on the regulation of each province).
  • ICIO tax rebates: up to 95%.

Check the requirements.

La Rioja

  • In La Rioja the subsidy on the total budget is 30%, with a maximum of €200.000.
  • Grants: the deduction on the Property Tax is 25% for 3 years.
  • ICIO tax rebates: up to 30%.

Check the requirements.

Community of Madrid

  • Subsidies on the installation price: up to 30% of the total budget.
  • grants: the IBI tax relief is 30% for 3 years. IBI is the responsability of the municipalty.
  • ICIO tax rebates: up to 95%.

Consult the details of the grants provided by the Community of Madrid

Check the requirements.

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Murcia

  • Subsidies: grants of 25%, 35% or 45% can be extended to a further 20% in the case of battery storage installation (under special conditions).
  • Grants: teh IBI tax relief is 30% for 3 years.
  • ICIO tax rebates: up to 50%.

Check the requirements.

Navarre

  • The Autonomous Community of Navarre does not offer ICIO grants or IBI rebates (because this tax is not applied), but it does have a grants system available for self-consumption photovoltaic installations based on percentages depending on the type of installation.
  • Grants: tax deduction of 25% of the budget on personal income tax.
  • The discounts for isolated self-consumption installations with batteries are increased by 10% and for shared self-consumption installations by a further 5%.

Check the requirements.

Basque Country

  • It offers grants and subsidies depending on the type of project.
  • Grants: the IBI rebate is 50% for 5 years.
  • Maximum rebate of 50% on the cost of the installation.

Check the requirements.

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Any questions?

Here are the questions our customers ask most frequently.

Photovoltaic self-consumption is the process of generating electricity using the sun's energy in the same place as it is consumed, thereby reducing the flow of electricity coming from the grid and improving efficiency.

Yes. Generating energy using your own photovoltaic installation and then consuming it yourself is not only legal, but by doing so you will help make our planet a better place, while helping achieve the UN's Sustainable Development Goals.

No. The charges for the consumption of the energy you generate yourself have been abolished, meaning no additional costs and savings on your next bill.

Yes. These may be available from various sources:

  • Municipal discounts on Property Tax (IBI) and the Tax on Construction, Installations and Building Works (ICIO) for self-consumption installations. Find out more from your local council.
  • Tax deductions for investing in renewable energies.
  • Regional and state subsidies for using photovoltaic self-consumption technology.
Smart Solar Iberdrola will be delighted to provide information about all the possibilities where you live.

To know which size best suits your needs you must analyse your energy consumption to find out what proportion occurs during daylight hours. For this you need your hourly consumption curve (provided by your supply meter), which you can then check against the sunlight on your roof.

You can do this via the "Discover Your Offer" section of the Iberdrola website (here). We could also do it for you if you wish.

Sunlight shines on the silicon cells that make up the photovoltaic panels to generate electricity in the form of direct current. This is then passed through the inverter, which converts it into alternating current that, once it has passed through your home's mains panel, can be used for domestic consumption.

When your installation is generating, you will consume less energy from the grid. It may even produce a surplus, that can then be fed into the grid. You do not need to install an additional energy meter.

You can set up "off-grid" self-consumption installations, but this does not usually make economic or environmental sense where a grid connection is already available. The reason for this is that an "off-grid" installation requires not only a greater number of panels, but also the installation of sufficient batteries to store the energy you will consume overnight. All of this makes an "off-grid" installation considerably more expensive than an installation connected to the grid.

The new self-consumption installation will reduce your grid energy demand and, if it does not include batteries, reduce your bill by around 30%.

If you install batteries, you could reduce your current electricity bill by up to 70%.

In order to best evaluate your saving, you will need to provide detailed data regarding your present consumption and to know your actual energy price.

Go to the Iberdrola website and use the simulator (here) to obtain a detailed and customised report on the economic benefits of a self-consumption installation.

To ease the initial outlay, Iberdrola has agreements with banks that will give you ten years to pay for your installation. That means you can pay for your installation while you save on your bills.

The installation works are simple, they do not generate debris and will not last longer than 1-2 days. The panels will be installed on the roof of your home and be connected to the inverter and to your mains panel using standard electrical cabling.

The installation works will require a construction permit. This will take between 2 weeks and 3 months to be granted depending on municipal district in which you live.

The photovoltaic panels last for an average of 30 years, meaning that if the installation is well maintained it will provide you with many benefits over the coming years, for which the planet will be truly grateful.

Current regulations state that renewable self-consumption installations with an installed power of under 100 kW can benefit from the simplified surplus compensation scheme.

Simplified surplus offsetting involves the value of the energy you feed into the grid being calculated by your electricity supplier and the resulting value being discounted from the energy section of your bill.

Iberdrola Clientes offers surplus offsetting in its various rates to those users who wish to benefit from this model.

The maximum amount offset will be the cost of energy billed monthly. The power term must continue to be paid on a monthly basis.

Once the photovoltaic installation has been completed, and during the process to legalise it with your regional government, we will indicate that you wish to benefit from the simplified surplus offsetting model. Your regional government will have a few days within which to notify the electricity distribution company in our area which, in turn, must notify your electricity supplier, again within a few days. The law that regulates surplus offsetting has only recently been passed, meaning that there is still a chance this process may take somewhat longer than planned, depending on where you live.

Once this formality has been carried out, all you now have to do is sign a contract with your electricity supplier that stipulates the offsetting of your surpluses. Iberdrola Clientes is now offering you contracts that include the offsetting of your surpluses so that you can benefit from the energy you generate and do not consume.

If you contract the installation with Smart Solar Iberdrola you will not have not have to worry about anything. We will take care of everything, including the formalities.

The offsetting price will be fixed between your direct supplier and the customer. In the event the customer is subject to the Voluntary Price for Small Consumers (PVPC), the market value published on the Red Eléctrica de España website will be used.

Iberdrola Clientes offers you a variety of plans for benefitting from the simplified offsetting model. In particular, and with photovoltaic self-consumers in mind, Iberdrola Clientes has created the Plan Solar, which enables you to offset your surpluses at the best price, in addition to optimising your rate bearing in mind when the sun rises and sets depending on the time of year.

Yes. The regulation allows several consumers to share energy produced by a renewable self-consumption installation.

Yes, to be able to distribute the energy produced by the shared installation among the associated consumers, we need to measure the energy produced. We also need to know how to share this energy between the consumers. This is why, when the installation is legalised, consumers must report their percentage shares, which will be used to apportion the energy produced. These percentage shares must add up to 100% to enable us to assign the energy produced.

In order for the electricity retailer to be able to issue a bill, the distribution company (responsible for meter reading) will apportion the energy produced on an hourly basis among the associated customers according to their percentage shares. The hourly energy use to be billed to a consumer is the difference between the meter reading at that time less the corresponding part of the energy generated by the shared installation.

Simplified surplus offsetting involves the value of the energy you feed into the grid being calculated by your electricity supplier and the resulting value being discounted from the energy section of your bill.

Shared installations can also benefit from simplified surplus offsetting. These surpluses will not go to your neighbour, and you will use your share of the energy produced even though you might not be at home when it is produced.

The maximum amount offset will be the cost of energy billed monthly.

The agreement is made with the Co-Ownership Association, whose tax number (NIF) appears on the agreement. The Co-Ownership Association is responsible for managing participants' contributions and the installation maintenance costs.

The participants come to an agreement regarding how they apportion the energy generated to cover shared requirements and private homes. Installation and maintenance costs are divided up accordingly in the same proportion.

A signed energy apportionment agreement, signed by all the participants, is required to legalise the installation. But don't worry. We will take care of all the formalities.

Yes. These are available from a number of sources and they differ from municipality to municipality:

  • Municipal discounts on Property Tax (IBI) and the Tax on Construction, Installations and Building Works (ICIO) for self-consumption installations.
  • Tax deductions for investing in renewable energies.
  • Regional and state subsidies for using photovoltaic self-consumption technology.
Smart Solar Iberdrola will be delighted to provide information about all the possibilities where you live.

To ease the initial outlay, Iberdrola has agreements with banks that will give your community ten years to pay for your installation. That means you can pay for your installation while you save on your bills.

Any more questions?

We will resolve them for you via any of our channels.

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