Are Solar Panels Worth It in Ireland in 2026? A Real-Numbers Verdict

The Proof That Solar Works in Irish Conditions

At 2:14pm on 25 April 2026, Ireland’s solar panels were generating 1,133 MW — the first time the country crossed the 1 gigawatt mark. EirGrid, the body responsible for Ireland’s electricity grid, reported the figure and noted that 1 GW can power around 500,000 homes at any given moment. This was not a Mediterranean afternoon. It was mid-April in Ireland.

That figure is the clearest rebuttal to the “Ireland is too cloudy for solar” argument. The technology was generating a gigawatt of electricity from Irish rooftops and fields in April. If that is too cloudy, the definition of “cloudy” needs updating.

What Solar Panels Actually Deliver in Ireland

Ireland’s national average solar yield is approximately 850–900 kWh per kWp per year (PVGIS data, European Commission Joint Research Centre). That yield is not uniform across the country:

Region	Typical Yield (kWh/kWp/year)	Best Orientation
Wexford / south Leinster	~965	South, southeast
Cork / south Munster	~940	South, southwest
Midlands (Laois, Offaly)	~900	South
Dublin / east coast	~880	South, southeast
Connacht (Galway, Mayo)	~850	South
North-west (Sligo, Donegal)	~817	South

Source: PVGIS (Photovoltaic Geographical Information System), European Commission Joint Research Centre. Figures are for a south-facing, 35-degree tilt, crystalline silicon panel.

A 4 kWp system in Wexford generates approximately 3,860 kWh per year. The same system in Donegal generates approximately 3,268 kWh. Both are useful outputs. The difference in payback between north and south of the country is roughly one to two years — not large enough to change the verdict in most cases.

For context: the average Irish home uses around 4,200 kWh of electricity per year. A 4 kWp system covers 75–90% of total consumption in gross terms. In practice, because some generation happens when the house is empty, self-consumption without a battery is typically 30–50% of total generation. The rest is exported to the grid under the Clean Export Guarantee.

The Real Cost and Payback

A 4 kWp solar system in Ireland costs €8,000–€11,000 installed. After the SEAI Solar Electricity Grant of €1,800, your net cost is €6,200–€9,200. The grant is structured as €700/kWp for the first 2 kWp and €200/kWp for the next 2 kWp, reaching the €1,800 maximum at 4 kWp. Both the grant and 0% VAT (in effect since May 2023) stack, meaning those are the real prices you pay, not pre-tax figures.

System Size	Net Cost After Grant	Est. Annual Saving	Payback Period
3 kWp	~€4,400–€6,900	~€700–€900	~7–9 years
4 kWp	~€6,200–€9,200	~€900–€1,300	~7–10 years
5 kWp	~€8,200–€12,200	~€1,100–€1,500	~8–10 years

The annual saving combines two things: electricity you generate and use yourself (saving approximately 35c/kWh against what you would otherwise import), and electricity you export under the Clean Export Guarantee (currently ranging from around 15c/kWh to 25c/kWh depending on your supplier — Pinergy is currently the highest at 25c/kWh as of May 2026). The first €400/year of export income is tax-free under Revenue rules extended to end of 2028.

Households with high daytime electricity use — a heat pump running, an EV charging at home during working hours, or someone working from home — achieve payback closer to six to seven years, because more of the generated electricity replaces grid imports at the full retail rate. Households that export most of what they generate achieve payback closer to nine to eleven years.

See the full cost breakdown by system size on the solar panels cost Ireland guide.

Why Are People Getting Rid of Their Solar Panels?

This question appears at or near the top of Google’s “People Also Ask” results for almost every Irish solar query. It deserves a direct answer.

In Ireland, there is no significant trend of people removing solar panels. The opposite is happening. SEAI processed more than 10,000 solar PV grant applications in Q1 2026 alone — a 65% increase year-on-year. That figure comes from a statement by Minister O’Brien in April 2026 (gov.ie press release, April 2026). Approximately 33,000 residential solar installs were completed in Ireland in 2025, and industry analysis suggests seven times more homes have solar today than in 2020.

The “getting rid of solar panels” question is driven by news stories from other markets — primarily the United States and the United Kingdom — where specific financial products created problems. In California, a 2023 change to net metering rates (NEM 3.0) dramatically reduced the value of solar exports overnight, making certain lease-financed systems uneconomical for homeowners who had structured their finances around the old export rate. In the UK, some homeowners with panels installed under a specific feed-in tariff scheme found the admin overhead of maintaining ageing systems no longer worth the return.

Neither of those dynamics applies to Ireland in 2026. Ireland does not have net metering (you are paid a rate for exports, not credited at the retail rate). Ireland does not have a widespread solar lease financing market that exposed homeowners to third-party rate risk. The SEAI grant is a direct, one-time subsidy paid to your bank account — not a long-term contract with a financier.

If you see this question in search results and it concerns you, the honest answer is: the question is real in some markets, it is not real in Ireland right now, and the data on new installs points entirely the other direction.

When Solar Panels Are Not Worth It

Solar panels are not worth it for every situation. The honest caveats:

• Rented property. If you rent, you cannot install solar without your landlord’s agreement, and you cannot claim the SEAI grant. Landlords can apply, but the economics only work if the landlord also benefits from lower bills or higher rent.
• Heavily shaded roof. A roof with significant shading from trees, chimneys, or adjacent buildings produces meaningfully less than the county average. If more than 20–30% of the proposed panel area is shaded at peak generation hours, the payback calculation changes significantly. A competent installer will assess shading using software before quoting.
• North-facing roof only. A roof that faces due north with no viable southeast or southwest plane available will generate 25–35% less than a south-facing equivalent. Payback extends accordingly. East or west facing roofs (30–40% less yield than south) can still work, particularly with a battery.
• Planning restrictions. Most residential solar is exempt from planning permission in Ireland under SI 235/2022, but properties in certain conservation areas or with specific planning conditions may require a planning application. Check with your local authority if your property has any listed building or conservation status.
• Home built after 1 January 2021. New builds are not eligible for the SEAI grant. If you are in a post-2021 build, solar may still be worth considering on a cost-only basis, but without the €1,800 grant the payback period extends by one to two years.
• Selling the house within five years. The grant is recouped at sale if the property changes hands within certain windows — verify the current SEAI conditions on this before proceeding. Generally, solar adds to property value, but if the timeline is short the return is less certain.

What the Reddit Discussion Actually Shows

If you have searched “are solar panels worth it Ireland Reddit” — and the autocomplete suggests many people do — you will find a mixed picture. Some threads from 2021–2022 are notably sceptical. That scepticism was legitimate at the time: the SEAI grant was smaller, electricity prices were lower, and the Clean Export Guarantee framework had not yet been established. Homeowners who installed pre-CEG were exporting electricity for free.

The situation changed materially in 2022–2023. The CEG launched, paying homeowners for every unit exported. The SEAI grant was increased. VAT on residential solar dropped to 0%. Electricity prices rose sharply and have not returned to pre-2021 levels. Threads from 2023 onward on r/ireland and r/irishpersonalfinance reflect a much more positive picture, with payback calculations being worked through and verified by community members in real time.

When you see a negative Reddit post about Irish solar, check the date. Most of the prominent sceptical threads predate the CEG or were written by people whose installer did not set up grid export correctly. Both problems are addressable: CEG is now standard, and every SEAI-registered installer handles the NC6 grid notification as part of the install.

The Timing Question: Is It Too Late to Get Solar Panels?

No, it is not too late — but the queue is longer than it was. SEAI-registered installers in most counties are booking 3–6 months out for residential jobs. If you want panels generating by September, you need quotes in hand by June at the latest in most parts of the country.

The €1,800 grant is stable for 2026. A reduction had been planned for earlier this year but was paused. Whether Budget 2027 will reduce the grant has not been confirmed — the autumn budget is where that decision will be made. What is clear is that the grant has come down over time as panel costs fall (it was higher in previous years), and that pattern is likely to continue at some point. If you are ready to go, waiting a year on the off-chance the grant stays the same is a bet with no upside. But do not let anyone pressure you with a definite “grant cuts in 2027” claim — that has not been announced.

Frequently Asked Questions