SEAI Battery Grant Ireland 2027: Who Qualifies and How to Apply
Ireland’s battery grant for 2027 is a flat €600 from SEAI towards a home battery of 5 kWh or larger. Anything under 5 kWh draws nothing at all, so the capacity on your quote decides whether the grant is available before anything else does.
The scheme opened on 6 October 2026 and sits alongside the solar electricity grant rather than replacing it. You can claim it with a new solar PV install, add it to panels you already have, or take a battery on its own with no panels at all.
The part that trips people up is sequencing. SEAI has to issue the grant offer before the battery is fitted, and a battery installed first cannot be funded afterwards.
How Much Is the SEAI Battery Grant and What Size Battery Qualifies?
The grant is a flat €600 for a battery energy storage system of 5 kWh or larger. It is a set rate, so a 10 kWh battery draws exactly the same €600 as a 5 kWh one. There is no per kWh calculation and no partial payment below the threshold.
Capacity is the only sizing test that matters for eligibility. A 3 kWh or 4 kWh unit is simply outside the scheme, whatever else it does.
- Flat rate, so a larger battery does not earn a larger grant
- One battery grant per MPRN, claimed once
- Stacks with the solar electricity grant for panels, which is capped at €1,800 for a domestic system
Who Qualifies for the Battery Grant in Ireland 2027?
You qualify if the home has an MPRN, was built and occupied before 2025, has never had a battery grant paid at that MPRN, and the installation is carried out by an SEAI registered solar PV contractor. The grant offer must be issued before any work starts.
The property matters more than the applicant here. Under SEAI’s battery grant criteria, the eligible applicant types run wider than owner occupiers.
- Homeowners, including private landlords
- Owner Management Companies
- Approved Housing Bodies
The installation also has to meet the scheme’s technical specifications, which is the installer’s responsibility to declare rather than yours to prove.
Can You Claim the Battery Grant If You Already Have Solar Panels?
Yes. Existing solar PV does not block a battery grant claim, provided the property meets the other conditions and no battery grant has been paid at that MPRN before. You apply for the battery grant in its own right, separately from whatever grant funded the panels.
The condition that actually catches people out is the inverter. Many existing string inverters cannot charge and discharge a battery on their own, so a retrofit often means either a hybrid inverter in place of the current one or a separate battery inverter alongside it. That changes the shape of the job and the quote, so it is worth settling before you start pricing one.
Three routes to the grant exist, and they differ on more than the battery.
| Claim route | What it involves | VAT on the battery | Post-works BER |
| New solar PV and battery together | One SEAI application covers both measures | 0% under a single contract | Required |
| Battery added to existing solar PV | Inverter checked or upgraded, grant offer first | 23% as a separate retrofit | Required |
| Standalone battery, no solar PV | Separate application, grant offer before install | 23% | Not required |
What to Do If You Already Hold Solar PV Grant Approval
Submit a separate battery grant application. SEAI confirms you do not need to amend a live solar PV application to add a battery, you just log back into the portal and apply for the battery grant as a second application. Both measures then run to their own offers.
The alternative is to cancel the solar PV application and reapply so one application covers panels and battery together. That route carries a cost worth knowing about.
- Keeping the existing approval and applying separately is the simpler option
- Cancelling and reapplying means a fresh application, assessed under the rules and rates in force on the day it is submitted.
- Neither route is available once works have started
How VAT Changes the Cost of a Standalone Battery
A battery installed at the same time as solar panels under a single contract is zero rated for VAT. Bought on its own as a retrofit, the same battery attracts the standard 23% rate, which follows Revenue’s VAT treatment of solar panels for private dwellings.
On a typical installed battery price, that VAT gap is worth more than the €600 grant covers. So for anyone already thinking about panels, the order you install in has a bigger effect on the final bill than the grant does.
Two questions settle it before you sign anything.
- Is the battery on the same contract as the panels, or a separate job later
- Does the existing inverter take a battery, or is a hybrid inverter needed too
How to Apply for the SEAI Battery Grant Step by Step
Apply through SEAI’s online portal, wait for the Letter of Offer, and only then let the installation go ahead. The order is fixed, and SEAI will not accept an application for works that have already started.
- Get quotes from SEAI registered solar PV companies and agree a written contract covering the works, price, timing and warranties.
- Apply online and wait for the Letter of Offer by email. Check the company named on the offer matches the one doing the job.
- Installer applies to ESB Networks to connect the battery before installing it, which usually takes at least four weeks.
- Complete the installation inside the eight months you have from grant approval, including the Declaration of Works.
- Arrange the post-works BER where solar PV is present at the property, carried out by a registered SEAI BER assessor.
- Submit the paperwork, including the Safe Electric certificate and the ESB Networks NC6 form, then allow four to six weeks for payment.
Which Battery Installations We Take On Under the Battery Grant
We install batteries as part of a new solar PV system, and we add a battery to an existing system in a defined set of cases. Standalone battery installs are not something we offer, and neither are battery add-ons to systems another company installed.
That is our own installation policy, based on technical and operational limits rather than any SEAI rule. The grant itself allows all three routes.
A battery add-on to an existing system is offered where all of the following hold.
- We installed the original system
- The original battery is a Solis, Dyness or Weco unit
- The system is under 18 months old and operational
- There is adequate space inside or outside for an additional battery
If a job sits outside that, the €600 is still open to you through any SEAI registered solar PV contractor.
It is also worth checking whether you qualify for more than €600 before you apply. Households receiving certain Department of Social Protection payments can have solar PV and a 5 kWh battery funded in full under the Warmer Homes Scheme or the Solar PV for Medically Vulnerable Scheme, and the enhanced solar grant route runs to €9,000 combined. Those routes are assessed by SEAI rather than claimed against an invoice.
Getting a Battery Quote That Matches the Grant Rules
The grant rewards getting the sequence right. Approval first, correct capacity, registered contractor, then the install, and a post-works BER where there are panels on the roof.
If you are weighing up panels and a battery together, or wondering whether your current system can take one, book a free consultation and quote and we will confirm what your property supports before any application goes in.
Contact Going Solar now and Get Free Advice & Quote Within Minutes!
Founder @ Going Solar
Joe Brennan, the founder of Going Solar, is dedicated to making solar power mainstream in Ireland and meet SEAI objectives. With a focus on affordability and sustainability, he is bringing renewable energy solutions to homes, reducing costs & environmental impact.
