Solar panels in Ireland 2026: SEAI grant, export rates and payback

An Irish roof faces a lot of cloud, but solar panels here are not a summer-only toy. With electricity unit rates in the high 30s of cent per kWh on many day tariffs this autumn, every unit you make and use yourself is worth more than it was two years ago. The question is whether the numbers work for your house, and the answer depends mostly on how much of the output you use at home.

The SEAI solar grant in 2026

SEAI’s solar PV grant for homes works like this in 2026, according to Energia’s grant guide, updated on 13 August 2026:

• €700 per kWp for the first 2 kWp;
• €200 per kWp for each additional kWp up to 4 kWp;
• a maximum of €1,800.

The house must have been built and occupied before 2021, and the owner (or private landlord) must not have had a similar grant before. The order of steps matters:

1. Apply to SEAI and get grant approval before any work starts.
2. Your installer, who must be SEAI-registered, notifies ESB Networks with the NC6 form.
3. Installation is completed within 8 months of approval.
4. A BER assessment is carried out after installation.
5. You submit invoices and documents; payment usually follows in 4 to 6 weeks.

Installing first and applying later means no grant.

Planning permission

Since October 2022 there is no limit on the area of solar panels on the roof of a house, anywhere in the country. The panels must keep a clearance of 50 cm from the bottom and open side edges of the roof and 25 cm from the ridge. Permission may still be needed if the house is a protected structure, sits in an architectural conservation area, or is inside a solar safeguarding zone near an airport or helipad. Your council can confirm.

What a system costs and when it pays back

We could not find an official SEAI average price, so the figures below come from an installer comparison site and should be read as a range, not a quote. solarinfo.ie lists a 4.4 kWp system (10 panels) at about €8,300 to €9,000 before the grant and €6,500 to €7,200 after it, producing roughly 3,900 kWh a year. It estimates annual savings of around €991 and a payback of about 7 years. Yield varies by county: the same source gives about 817 kWh per kWp in Donegal and 965 kWh per kWp in Wexford.

Two things help the sums. Solar panels for homes have been charged at 0% VAT since May 2023. And rising electricity prices shorten the payback: Electric Ireland’s 8% increase in July and this October’s increases at other suppliers raise the value of each kWh you avoid buying.

Run your own roof, county and usage through our solar calculator. It is more useful than any national average.

Exporting: the Clean Export Guarantee

Anything you do not use flows to the grid, and under the Clean Export Guarantee your supplier must pay for it, though each supplier sets its own rate. A check on 12 September 2026 listed:

You need a smart meter and the NC6 notification in place. Energia, for example, pays as a credit on the bi-monthly bill rather than into your bank account. Budget 2026 extended the €400 annual income tax, USC and PRSI exemption on export income until the end of 2028. At 18.5c per kWh you would have to export about 2,160 units a year before any of it became taxable.

Export rates are well below what you pay to import, which is why self-consumption matters. A unit used at home is worth your full day rate; a unit exported is worth about half of it.

Batteries

Batteries raise self-consumption but add cost: solarinfo.ie lists €3,000 to €4,500 for a 5 kWh battery. They are not covered by the SEAI solar grant. RTÉ’s preview of Budget 2027 on 26 September mentioned a €600 grant for solar battery storage. Until the Budget on 6 October confirms it and SEAI publishes conditions, do not count on it, and do not sign a battery contract that assumes it.

Pitfalls

Starting work before approval. The most common way to lose the grant.

Sizing for the grant, not the house. The grant tops out at 4 kWp. A bigger array can still make sense, but only if you use the power: a large system on a house that is empty all day exports most of its output at half price.

Ignoring your tariff. If you move to a plan with cheap night rates for an EV, some of the saving from solar shifts. Compare the whole picture on our compare page once the panels are running.

Relying on “up to” export offers. Some installer partnerships advertise export rates as high as 32c per kWh, but they tie you to specific providers. Read the conditions and check the rate against the supplier’s standard plans.

What changed in 2025-2026

The SEAI grant maximum is €1,800 in 2026, the €400 export tax exemption was extended to 2028, and electricity prices rose again, which favours solar. Export rates run from 15.2c to 19.5c per kWh across the suppliers solarinfo.ie checked in September, with the largest suppliers at 18.5c or 19.5c. The open question is a battery grant. If you are already thinking about an electric car, read our guide to charging at home, because the two decisions affect each other.