SEAI 2026 · Updated March 2026
Solar Panels Ireland 2026
Grants, Savings & Real Costs
The average Irish home with solar PV saves €400–€700 per year on electricity bills. Add a €1,800 SEAI grant and 0% VAT, and most 4kWp systems pay for themselves in under 8 years.
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Solar in Ireland — the key numbers
€1,800
SEAI grant
0%
VAT rate
€550/yr
Average saving
7–9 yrs
Typical payback
The SEAI solar grant explained
SEAI offers a grant of up to €1,800 for solar photovoltaic (PV) systems on private homes in Ireland. The grant is available for systems up to 6kWp in capacity. Since 2023, solar panels are also subject to 0% VAT in Ireland — a saving of typically €500–€900 on the installation cost.
SEAI Solar PV grant breakdown
| System size | SEAI grant | Typical install cost (incl. 0% VAT) | Net cost after grant |
|---|---|---|---|
| 2kWp (small home) | €800 | €3,000–€4,500 | €2,200–€3,700 |
| 3kWp (3-bed semi) | €1,200 | €4,500–€6,000 | €3,300–€4,800 |
| 4kWp (3–4 bed) | €1,600 | €5,500–€7,500 | €3,900–€5,900 |
| 5–6kWp (large home) | €1,800 | €7,000–€9,500 | €5,200–€7,700 |
To qualify for the SEAI solar grant, the installation must be carried out by an SEAI-registered solar installer. The system must be permanently installed (not portable panels). You apply after installation at seai.ie.
Clean Export Guarantee (CEG) — get paid for surplus electricity
Since 2022, Irish homeowners with solar panels can earn money by exporting surplus electricity back to the grid. This is called the Clean Export Guarantee (CEG). You receive a per-unit payment from your electricity supplier for every kWh you export.
Current CEG rates (March 2026)
Electric Ireland
21c/kWh
Energia
24c/kWh
SSE Airtricity
22c/kWh
Bord Gáis
20c/kWh
Pinergy
22c/kWh
Community Power
25c/kWh
Rates are indicative. Check your supplier's current rate before switching. You must register your system with your supplier to receive CEG payments.
A typical 4kWp system in Ireland generates around 3,400 kWh per year. Homeowners use roughly 50% of that directly (saving on import costs) and export the other 50%. At a CEG rate of 22c/kWh, that's an additional €374/year in export income on top of your import savings.
Real savings for Irish homes
| Home type | Rec. system | Import saving | CEG income | Total annual benefit |
|---|---|---|---|---|
| 2-bed apartment / house | 2kWp | €180/yr | €90/yr | €270/yr |
| 3-bed semi-D | 3–4kWp | €320/yr | €190/yr | €510/yr |
| 4-bed detached | 4–5kWp | €400/yr | €240/yr | €640/yr |
| 5-bed detached / bungalow | 5–6kWp | €480/yr | €310/yr | €790/yr |
Based on Irish solar irradiance data, electricity import rate €0.38/kWh, CEG rate 22c/kWh, and 50/50 self-use/export split. Savings increase in summer, decrease in winter.
Solar payback period for Irish homes
The payback period is how long it takes for your annual savings to cover the installation cost. For Irish homes, this typically ranges from 7 to 9 years — after which the system generates pure profit for its remaining 20+ year lifespan.
Best case: 4kWp, south-facing roof, Cork/Wexford
Typical: 3kWp, south-west facing, Dublin
Good: 5kWp, south-east facing, Galway
Challenging: 2kWp, east-facing, Donegal
What size solar system does your home need?
The right system size depends on your electricity consumption, roof orientation, and how much roof space is available. As a rule of thumb, budget roughly 1kWp per bedroom — but a proper survey will give you an exact recommendation.
- 2kWp (4–6 panels)Apartments, 1–2 bed homes~1,700 kWh/yr · ~12m² roof space
- 3kWp (6–9 panels)2–3 bed houses~2,550 kWh/yr · ~18m² roof space
- 4kWp (8–12 panels)3–4 bed semi-D~3,400 kWh/yr · ~24m² roof space
- 6kWp (12–16 panels)4–5 bed detached~5,100 kWh/yr · ~36m² roof space
Get a personalised solar assessment
Our free checker estimates your solar potential and grant amount based on your home's specifics.
Start your free home checkSolar panel FAQs for Irish homes
Do solar panels work in the Irish climate?
Yes. Ireland receives 1,100–1,400 kWh/m² of solar irradiance per year — similar to northern Germany, where solar is well established. South-facing roofs in Cork, Wexford, and Waterford perform best, but even north-facing systems in Donegal generate meaningful power from diffuse light.
Do I need planning permission for solar panels in Ireland?
Most domestic solar installations are exempt from planning permission in Ireland since 2022. The exemption covers systems up to 6kWp for houses (not apartments). Protected structures and homes in Architectural Conservation Areas should check with their local authority.
Can I add a battery with the SEAI solar grant?
Yes, SEAI allows battery storage to be included in the grant-eligible works. A battery lets you store surplus daytime generation for evening use, increasing self-consumption and reducing your need to export at lower CEG rates.
How much do solar panels cost in Ireland in 2026?
A fully installed 4kWp system (before grant) costs approximately €5,500–€7,500 in Ireland in 2026. Prices have fallen 40% since 2020. After the €1,600 SEAI grant (for 4kWp), your net cost is typically €3,900–€5,900.