€600 Solar Battery Grant Ireland 2027: What It Covers and How to Claim It

SEAI pays a flat €600 towards a home battery of 5 kWh or larger. The solar battery grant Ireland homeowners can now apply for opened on 6 October 2026, and it sits separate from the Solar Electricity Grant that covers the panels themselves.

The amount does not scale with the size of the battery. A 5 kWh unit and a 15 kWh unit both attract the same €600, and anything under 5 kWh attracts nothing at all.

What matters more than the amount is the sequence. The grant offer has to be in your hands before a single bracket goes on the wall, and the route you claim under changes your VAT bill and your paperwork. Here is how each route works, and which ones a typical installer will actually take on.

How Much Is the Solar Battery Grant in Ireland?

The grant is a set rate of €600 for a battery of 5 kWh or larger, paid once per MPRN. Batteries smaller than 5 kWh are not eligible, and there is no higher rate for a bigger unit. You can claim it with a new solar installation or on its own.

It is a contribution, not a subsidy that moves with the quote. The rest of the installed price depends on the battery you pick and the work involved, which we cover in more detail in our guide to home battery costs in Ireland rather than here.

Three things decide the final number on your invoice:

• The usable capacity and brand of the battery
• Whether your existing inverter can run a battery or needs replacing
• Whether the work falls under 0% or 23% VAT, which depends on the claim route below

Who Qualifies for the €600 SEAI Battery Grant?

Your home needs an MPRN, must have been built and occupied before 2025, and must not have had a battery grant paid at that MPRN already. The work has to be done by an SEAI registered solar PV contractor, and the installation has to meet SEAI’s technical specifications. Eligible applicants cover more than owner-occupiers.

Four applicant types can apply, according to SEAI’s battery grant criteria:

• Homeowners, including private landlords
• Owner Management Companies
• Approved Housing Bodies

The 5 kWh floor is the one that catches people out. If you were sizing a small unit purely for evening top-ups, the grant pushes you to at least 5 kWh, so it is worth reading up on what size solar battery you need before you commit to a quote.

3 Ways to Claim the Solar Battery Grant in Ireland

There are three claim routes, and the grant is the same €600 in each. What changes is the VAT treatment and whether a post-works BER is needed. Picking the wrong route, or starting work before approval, is what costs people the money.

If you are installing panels and a battery together, both grants go through a single application. If you already hold a solar PV grant offer, you do not need to amend it. You submit a separate battery application through the portal instead, provided the battery work has not started.

A battery with no panels only makes financial sense on a day and night tariff, where you charge cheaply overnight and discharge during the expensive daytime hours.

Which of the 3 Routes Going Solar Installs

We install new solar PV systems that include a battery, and we take on battery add-ons to systems we installed ourselves, subject to a technical check on the existing equipment and the space available. We do not offer battery-only installations, and we do not add batteries to systems installed by another company.

That is a commercial and operational decision rather than an SEAI rule. The grant allows all three routes. Not every installer serves all three, and retrofitting into someone else’s wiring, inverter and warranty chain carries risk we are not in a position to stand over.

So before you apply, work out which bracket you sit in:

• Buying panels and a battery together, you are covered here
• Adding a battery to a system we installed, get in touch for the technical check
• Battery only, or an add-on to another company’s system, you will need an installer who offers that route

Saying that plainly is better than letting you apply, book a survey and find out at the end.

How to Apply for the Battery Grant Before Installation Starts

Apply to SEAI and wait for your written grant offer before any work begins, because installations that have already started cannot be funded. The application runs through SEAI’s microgeneration portal, and your contractor handles the technical side once the offer lands.

The sequence runs like this:

1. Get quotes from SEAI registered solar PV companies and agree a written contract covering works, price, timing and warranties.
2. Apply to SEAI and wait for the Letter of Offer by email. Check the named company on it matches the one doing the job.
3. Your installer applies to ESB Networks to connect the battery to the network. That generator connection application usually takes at least four weeks, or 20 working days.
4. The installation goes ahead, and you have 8 months from grant approval to finish the works and submit the Declaration of Works.
5. Arrange the post-works BER where solar PV is present, then your company uploads the paperwork, including the NC6 form and the Safe Electric certificate.

Payment lands in your nominated account once SEAI has the documents and the BER is published on the national register, typically four to six weeks later.

What to Check Before Adding a Battery to Existing Solar Panels

Check the inverter first, because a standard string inverter will not run battery storage. Most older domestic installs were fitted with one, which means a hybrid inverter replacement before the battery goes anywhere. That single item often moves a retrofit quote more than the battery does.

Space is the second check. SEAI recommends batteries be installed outside in a suitable enclosure where possible, or indoors in a well ventilated space, and a Registered Electrical Contractor has to sign off that the location suits.

The practical questions worth asking before you commit are set out in our guide to adding a battery to an existing system, which covers the inverter question in more depth.

Larger Solar and Battery Grants for Qualifying Welfare Recipients

Households receiving certain Department of Social Protection payments can access an enhanced rate worth up to €9,000, made up of €8,400 for solar PV up to 4 kWp plus the same €600 for a 5 kWh battery. Fuel Allowance, Working Family Payment, One-Parent Family Payment, Carer’s Allowance and Domiciliary Care Allowance are among the qualifying payments.

This is not income-assessed in the general sense. You need to be receiving one of the named payments and meet the conditions attached to it, alongside the standard property rules.

If you already hold a standard solar PV approval and now qualify for the enhanced route, you can cancel that application and reapply, provided works have not started. 

Grant rates apply as they stand on the date of the new application, so check the current figures on the solar grants hub before cancelling anything.

Next Steps Before You Book a Battery Install

The €600 is straightforward once you know your route. The approval has to land before the install, the battery has to be 5 kWh or larger, and the VAT treatment follows whether panels are going up at the same time.

If you are weighing panels and a battery together, or you want a battery added to a system we put in, talk to our team about a quote and we will confirm your eligibility and handle the SEAI application from there.