SEAI Solar PV Grant 2026: Amounts, Eligibility and the Order of Steps

Key Takeaways

• The grant is €700 per kWp for the first 2 kWp, then €200 for each additional kWp up to 4 kWp, and it stops at €1,800. SEAI has confirmed the maximum stays at €1,800 in 2026.
• It is paid pro rata, so a 2.5 kWp system draws €1,500 — you do not have to land on a whole number of kilowatt-peak.
• Grant approval must be in place before the works start. There is no retrospective application, and this is the step people lose the money on.
• Your home needs an MPRN and must have been built and occupied before 2021. A home that already took solar PV funding at that MPRN cannot claim again.

How much is the SEAI solar PV grant?

The grant is banded, not a flat percentage. SEAI pays €700 for each of the first 2 kWp installed, then €200 for every additional kWp up to 4 kWp, and nothing above that. The ceiling is €1,800.

Grant values as published by SEAI, August 2026. The 2.5 kWp row is SEAI's own worked example of the pro-rata rule.

The shape of that table matters more than the headline number. The first 2 kWp are worth €700 each and everything after is worth €200, so the grant subsidises a small system generously and a large one barely. Going from 4 kWp to 6 kWp adds real cost and zero grant. That is a deliberate design choice about self-consumption, not an oversight, and it should inform the size you ask installers to quote.

Who can apply?

Three things have to be true about the property:

• It has an MPRN — the meter point reference number on your electricity bill.
• It was built and occupied before 2021. Newer homes are excluded, on the reasoning that they should already meet a higher building standard.
• It has not had solar PV grant funding before at that MPRN.

On the applicant side SEAI accepts all homeowners including private landlords, owner management companies, and Approved Housing Bodies. Renting the property out does not disqualify you.

The order of steps, and the one that costs people the grant

SEAI is explicit: you must have grant approval in place before proceeding with works. Applying afterwards does not work, and there is no appeal that turns an installed system into a funded one.

The sequence is:

1. Find a registered solar PV company and get quotes. An unregistered installer voids the grant no matter how good the work is.
2. Apply to SEAI and wait for the grant offer.
3. Only then, let the works start.
4. Complete the installation.
5. Arrange a post-works BER assessment by a registered BER assessor.
6. Submit evidence of works to SEAI.
7. SEAI pays the grant, and may inspect.

You have eight months from approval to finish the works and get all the documentation in. That is generous for a one-day install and tight if you are waiting on a scaffolder, an electrician and a BER assessor in sequence.

Will the money reach me before I have to pay the installer?

Usually not, and this catches people out. If you apply yourself, SEAI pays the grant to you, after the works are complete and the paperwork is accepted — so you fund the full installed cost first and are reimbursed later.

The exception is a One Stop Shop, which manages the upgrade and deducts the grants from the cost upfront. For solar PV you can only use one if you are doing multiple upgrades at once, so it is not available to someone who just wants panels.

Plan the cash flow on the assumption you are paying the full amount and getting €1,800 back afterwards, not on the assumption of a discount at the till.

What about businesses and farms?

The domestic scheme is not the only one. SEAI runs a separate non-domestic microgeneration grant worth up to €162,600 for businesses, farms, schools, community centres and other non-profits. If the roof in question is on a shed rather than a house, the domestic figures on this page are the wrong ones to be reading.

Does the grant decide whether solar is worth it?

No — and it is worth being blunt about that, because the grant is the most quoted number in Irish solar sales and it is not the number that decides the outcome.

At the €1,800 ceiling the grant is a fixed, one-off reduction in your installed cost. What actually determines payback is recurring: the unit rate you pay for imported electricity, the rate your supplier pays you for exported units under the Clean Export Guarantee, and how much of your generation you use in the house rather than export. Those are set by your supplier and your habits, not by SEAI, and they vary enough between suppliers that two identical roofs can have materially different payback — and at least one supplier is cutting its export rate in 2026.

Treat the €1,800 as what it is: a discount that shortens the payback a little, on a decision made by the other three numbers.