Here is a comprehensive step-by-step guide explaining what grants will be available this year, why they are being promoted and how you can apply for them.

Why there are new energy subsidies in 2026

Energy policy objectives 2026–2030

The European Union has set ambitious targets to transform the energy system into a cleaner and more efficient model. The energy subsidies planned for this year are part of the Integrated National Energy and Climate Plan (PNIEC), the Next Generation EU Funds and other strategic frameworks, which continue to finance energy and decarbonisation projects until 2026.

These funds and specific aid programmes seek to promote measures to encourage the use of renewable energies, self-consumption, improve energy efficiency and reduce emissions over the next decade.

Commitments to efficiency, renewables and emissions reduction

The energy transition in Spain includes targets for reducing emissions, increasing the penetration of renewable energies and improving the energy performance of the housing stock. To achieve these goals, programmes for efficient heating and energy rehabilitation will reduce bills, improve insulation and advance the decarbonisation targets set by the EU.

In general, public aid offers economic incentives that enable investment in clean technologies, such as photovoltaics, energy storage and electric mobility.

Energy transition as a driver of public subsidies

The process of change towards a more sustainable energy system not only responds to climate objectives, but also to the need to reduce dependence on fossil fuels and improve energy security, while also simplifying procedures through centralised platforms. For this reason, the Government and the EU finance projects and investments that would be less economically viable without public support.

Subsidies available in 2026: main programmes

Subsidies for energy efficiency in housing

In 2026, subsidies to improve the energy efficiency of homes and buildings will continue: renovation of heating systems, insulation, windows or efficient equipment, with amounts of up to €3,000 per property, included in the Recovery, Transformation and Resilience Plan (PRTR) and managed by the autonomous communities.

In addition, there are income tax deductions for home renovations that improve energy efficiency, which can reach up to 60%, depending on the type of work and the energy saving objective achieved, and which are granted once the work has been completed.

Subsidies for self-consumption and storage

This year, national and regional programmes will continue to offer grants for renewable self-consumption installations, such as photovoltaic solar panels and storage systems. The amounts of this subsidy vary depending on the technology, the size of the project and other technical criteria.

These subsidies come from several sources: Next Generation funds, complementary regional aid and income tax deductions, ranging from 40% to 60%, depending on the energy savings achieved.

Incentives for electric mobility

In 2026, programmes to promote electric mobility will also remain in force, notably the new Auto Plus Plan, which will replace Moves III. This includes a specific budget to encourage the purchase of electric vehicles, through direct aid for car acquisition and support for the installation of charging points, among other benefits.

Subsidies for the energy renovation of buildings

Programmes financed with European funds for the comprehensive energy renovation of buildings will also be maintained, especially to achieve significant improvements in homes with efficiency problems. These will cover up to 80% of the cost depending on the type of work (insulation, windows, aerothermal energy, solar energy, etc.) and are open to both individuals and homeowners' associations.

Standard requirements for accessing the 2026 subsidies

Applicant requirements

Energy subsidies may be aimed at individuals, homeowners' associations, companies or organisations. There are different eligibility conditions for each recipient, but they commonly include: being up to date with tax and social security obligations, and not having any financial or other penalties.

It is also common for individuals or independent applicants to be required to be the owner or tenant of the property, and for it to be their primary residence, in the case of efficiency programmes.

Requirements for the property or project

Projects must meet minimum technical criteria to be eligible. For example, self-consumption facilities must be endorsed or authorised by professionals, while energy efficiency measures must provide certified proof of energy consumption reductions. In addition, the facility may be required to be new and subsequent to the application.

Environmental or energy certification

In many cases, energy efficiency certification is required before and after the measure is implemented in order to justify the energy savings or improvement. This must be issued by specialists in order to be accepted in the grant application procedures. And, in some cases, to apply for income tax deductions, it is necessary to demonstrate a 30% reduction in consumption.

How to apply for energy subsidies starting in 2026

Step 1: Identify the right subsidy

You should start by doing thorough research to find the call for applications that best suits your needs (whether for self-consumption, efficiency, renovation or mobility), and then check the deadlines for applying. The websites of the Institute for Energy Diversification and Saving (IDAE) and PRTR include information on this type of aid, as well as current regional calls for applications.

Step 2: Gather the necessary documentation

Have all the necessary documentation to hand to start the application process: identity and property documents, the technical project, estimates and invoices, permits, energy certificates, etc.

Step 3: Online or in-person submission

Applications are usually submitted online, through official platforms such as those of the IDAE or the PRTR, or in person at administrative and regional offices, as required by each call for applications. The autonomous communities set their own deadlines.

Step 4: Following-up on the application

After submitting your application, we recommend that you follow up on the process and the status of the decision, and be on the lookout in case additional supporting documents are required during the processing of your file.

Most common mistakes when applying for energy subsidies

• Starting the facility before submitting the application. Some subsidies require the work or facility to be carried out after the application has been submitted, and within certain time limits.
• Not knowing the deadlines and specific requirements for each call for applications. Many subsidies have very specific application periods.
• Submitting incomplete documentation, after the deadline, or applying to the wrong call for applications could result in your application being rejected. Regional subsidies are often confused with national subsidies.
• Failing to meet technical requirements or using unauthorised installers, as well as failing to properly certify energy improvements (lack of energy or technical certification).

2026 represents a new opportunity to improve energy efficiency in homes and buildings, reduce electricity bills and promote a more sustainable energy model, and energy subsidies are one of the primary ways to accelerate the ecological transition and the implementation of renewable energies.

Individuals, businesses and organisations can benefit from these programmes and make the most of them, but to do so, it is necessary to be very familiar with the available calls for applications, ensure that the requirements are met, prepare the documentation well and follow the correct steps to apply.

Taking advantage of these subsidies for self-consumption, renovation and electric mobility, with more accessible funding and simpler procedures, will not only allow you to spend less and improve sustainability, but will also contribute to meeting climate commitments. So, if you are thinking of making your home more efficient and taking the step towards self-consumption, 2026 could be a key year to take that step.