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Solar panel grant Ireland 2026: up to €1,800 (+€600 battery) and the real payback

Last updated: · Figures checked 18 October 2026 · By the HouseWise team

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Solar PV is one of the most searched home upgrades in Ireland, and the rules changed on 6 October 2026: homes built before 2025 now qualify (up from pre-2021), and there's a new €600 grant for a home battery (SEAI, 29 September 2026).

How much is the solar PV grant?

System size Grant
1 kWp €700
2 kWp €1,400
3 kWp €1,600
4 kWp or more €1,800 (maximum)
Battery, 5 kWh or larger €600 flat rate

The grant is €700 per kWp up to 2 kWp, then €200 for each extra kWp up to 4 kWp, paid pro rata (a 2.5 kWp system gets €1,500). The maximum for panels plus battery is €2,400 (SEAI solar electricity grant, checked 18 October 2026).

Enhanced grant: homeowners on certain Department of Social Protection payments (including Fuel Allowance, Working Family Payment, One-Parent Family Payment, Domiciliary Care Allowance, and some others with conditions) can get €3,350 per kWp up to 2 kWp and €850 per kWp up to 4 kWp (max €8,400), or €9,000 with a battery. Homes on the Warmer Homes Scheme now get solar PV and a battery fully funded.

Who qualifies

  • All homeowners, including private landlords, owner management companies and approved housing bodies.
  • The home has an MPRN and was built and occupied before 2025.
  • No previous solar PV grant at that MPRN.
  • An SEAI-registered solar PV company does the work, and you have grant approval before work starts. You then have eight months to finish.
  • Your installer must apply to ESB Networks to connect the system, which SEAI says usually takes at least four weeks.

Planning permission: you don't need planning permission for solar panels on the roof of a house, and you can cover the whole roof. Freestanding panels in the garden are exempt within limits (not in front of the house, under 2.5 m high, up to 25 m²) (Citizens Information). Protected structures and conservation areas have extra restrictions.

What solar panels cost

SEAI's median costs for grant-aided solar PV jobs completed January to June 2026 (PDF):

Home Median cost Max grant Left to pay
Detached €11,100 €1,800 €9,300
Semi-D / end of terrace €9,500 €1,800 €7,700
Mid-terrace €9,250 €1,800 €7,450
Apartment €9,075 €1,800 €7,275

SEAI doesn't publish the system size or whether a battery was included in these medians, so compare quotes on a like-for-like basis: panel and inverter models, kWp, battery size, scaffolding, the diverter or immersion controls, and warranties.

Does solar pay back in Ireland? A worked example

This is an illustration with stated assumptions, not a forecast for your home. Change the numbers to match your quote and bills.

Assumptions:

  • Cost: €7,700 after the grant (SEAI's semi-detached median minus €1,800).
  • Size and output: 4 kWp. SEAI says a well-located ~3 kW system generates around 2,600 kWh a year (SEAI solar PV FAQs, PDF); scaling that to 4 kWp gives about 3,470 kWh a year.
  • Electricity price: 32.49c/kWh, the October 2026 average standard unit rate including VAT (Selectra).
  • Export payment (Clean Export Guarantee): 18.5c/kWh. Supplier rates vary; published rates listed in October 2026 ranged from about 15.2c to 19.5c per kWh (SolarInfo.ie comparison). Check your own supplier.
How much you use yourself Saved on bills Paid for export Value per year Simple payback
30% (out at work all day) 1,041 kWh × 32.49c = €338 2,429 kWh × 18.5c = €449 €787 about 9.8 years
50% 1,735 kWh × 32.49c = €564 1,735 kWh × 18.5c = €321 €885 about 8.7 years
70% (battery, diverter, home in the day) 2,429 kWh × 32.49c = €789 1,041 kWh × 18.5c = €193 €982 about 7.8 years

For comparison, SEAI's own estimate is lower: household savings of up to €741 a year for a typical grant-aided system, or up to €878 a year with a 4 kWp system plus battery (SEAI, 29 September 2026). On €741 a year, the same €7,700 net cost pays back in about 10.4 years. If an installer's estimate is well above SEAI's figures, ask how it was worked out.

Simple payback ignores panel ageing, maintenance, inverter replacement, future price changes and interest, so the real figure could be longer or shorter. SEAI also notes about 75% of a year's solar output comes between May and September, so savings are much lower in winter. A battery raises how much you use yourself but adds to the cost; if a quote's battery costs much more than the extra savings, it may not pay its way.

SEAI has its own solar PV calculator for your roof and usage.

How to apply

  1. Get quotes from SEAI-registered solar PV companies and ask how much the system should generate each year.
  2. Apply online for the solar (and battery) grant; you can apply for both in one application. Don't start before your offer.
  3. Your installer registers the system with ESB Networks (NC6 form) and installs it.
  4. Get the post-works BER, published by your assessor.
  5. Your solar company uploads the documents; SEAI pays in about 4 to 6 weeks.

Add up the grants for your home with our grant estimator

FAQs

Can I add a battery to solar panels I already have? You can apply for the €600 battery grant separately later, as long as you meet the rules at the time and haven't started the work. Installations already under way can't be accepted.

Is there a solar grant for homes built after 2021? Yes, since 6 October 2026 homes built and occupied before 2025 qualify.

Do I get paid for electricity I export? Yes. Under the Clean Export Guarantee, suppliers pay for electricity you send to the grid. Rates differ by supplier, so compare them before choosing a tariff.

Do I need planning permission for solar panels on my roof? Not for a house, other than protected structures and some conservation areas.

Sources

All checked 18 October 2026.