Last updated March 2026
Solar Panels Ireland:Home Solar & PV Panel Guide
Everything you need to know about home solar panels and PV panels in Ireland — costs, SEAI grants up to €1,800, county-by-county solar yield data, and how to find SEAI-registered installers near you. Whether you want roof solar panels for your house or a complete solar system for your home, over 160,000+ Irish homeowners have already made the switch.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
160,000+
Irish Homes with Solar
33,049
SEAI Grants in 2025
€1,800
Max SEAI Grant
0% VAT
On Residential Installs
588+
SEAI Installers Listed
How much do solar panels cost in Ireland in 2026?
Solar panel prices in Ireland depend on system size, equipment quality, and your installer. The cost of PV panels has dropped significantly, and after the SEAI grant most homeowners pay between €4,500 and €8,000 for a home solar panel system. The most popular system size is 4.4 kWp (10 panels), which maximises the SEAI grant at €1,800 and costs around €5,900 net.
Prices include installation, inverter, mounting hardware, and wiring. All residential solar panel installations in Ireland are 0% VAT rated since May 2023. Battery storage is an optional extra (€3,000–€7,500 depending on capacity). For a detailed breakdown, see our solar panel cost guide. Here are the typical costs for the most popular system sizes:
| System Size | Panels | Gross Cost | SEAI Grant | Net Cost | Annual Output | Payback |
|---|---|---|---|---|---|---|
| 2 kWp | 5 | €4,500 | €1,400 | €3,100 | 1,770 kWh | 4–5 yrs |
| 3.3 kWp | 8 | €6,200 | €1,660 | €4,540 | 2,930 kWh | 4–5 yrs |
| 4.4 kWp | 10 | €7,700 | €1,800 | €5,900 | 3,890 kWh | 4–6 yrs |
| 5.5 kWp | 13 | €9,200 | €1,800 | €7,400 | 4,870 kWh | 5–6 yrs |
| 6.6 kWp | 15 | €10,800 | €1,800 | €9,000 | 5,850 kWh | 5–7 yrs |
Prices are indicative averages based on market data (Feb 2026). 0% VAT included. Actual costs vary by installer, equipment, and roof complexity. Output based on national average yield of 883 kWh/kWp.
€5,900
Typical net cost (4.4 kWp after grant)
4–6 yrs
Average payback period
€20–30K
25-year savings
3–4x
Return on investment
Solar panel and PV panel output by county in Ireland
Ireland’s 26 Republic counties ranked by solar PV yield. Wexford leads at 965 kWh/kWp while even Donegal (ranked 26th) generates 817 kWh/kWp — making home solar panels viable everywhere in Ireland. The national average is 883 kWh/kWp.
| Rank | County | Yield (kWh/kWp) | 4kWp Output (kWh/yr) | Sunshine (hrs/yr) | SEAI Installs 2025 | vs. Average |
|---|---|---|---|---|---|---|
| #1 | Wexford | 965 | 3,860 | 1,540 | 1,278 | +9.3% |
| #2 | Waterford | 949 | 3,796 | 1,465 | 840 | +7.5% |
| #3 | Wicklow | 947 | 3,788 | 1,448 | 1,275 | +7.2% |
| #4 | Dublin | 915 | 3,660 | 1,500 | 7,044 | +3.6% |
| #5 | Carlow | 911 | 3,644 | 1,490 | 438 | +3.2% |
| #6 | Cork | 907 | 3,628 | 1,380 | 3,603 | +2.7% |
| #7 | Kilkenny | 905 | 3,620 | 1,360 | 754 | +2.5% |
| #8 | Kerry | 896 | 3,584 | 1,246 | 1,076 | +1.5% |
| #9 | Clare | 888 | 3,552 | 1,343 | 1,045 | +0.6% |
| #10 | Laois | 888 | 3,552 | 1,278 | 580 | +0.6% |
| #11 | Kildare | 885 | 3,540 | 1,295 | 1,654 | +0.2% |
| #12 | Meath | 885 | 3,540 | 1,315 | 1,972 | +0.2% |
| #13 | Galway | 886 | 3,544 | 1,182 | 2,126 | +0.3% |
| #14 | Tipperary | 884 | 3,536 | 1,315 | 1,161 | +0.1% |
| #15 | Louth | 881 | 3,524 | 1,315 | 1,084 | -0.2% |
| #16 | Offaly | 881 | 3,524 | 1,240 | 550 | -0.2% |
| #17 | Westmeath | 871 | 3,484 | 1,240 | 603 | -1.4% |
| #18 | Limerick | 869 | 3,476 | 1,281 | 1,888 | -1.6% |
| #19 | Roscommon | 867 | 3,468 | 1,200 | 462 | -1.8% |
| #20 | Longford | 854 | 3,416 | 1,285 | 199 | -3.3% |
| #21 | Sligo | 847 | 3,388 | 1,150 | 467 | -4.1% |
| #22 | Leitrim | 842 | 3,368 | 1,150 | 222 | -4.6% |
| #23 | Mayo | 841 | 3,364 | 1,105 | 1,131 | -4.8% |
| #24 | Monaghan | 841 | 3,364 | 1,200 | 283 | -4.8% |
| #25 | Cavan | 841 | 3,364 | 1,250 | 433 | -4.8% |
| #26 | Donegal | 817 | 3,268 | 1,175 | 881 | -7.5% |
Solar yield data from EU PVGIS satellite measurements. SEAI installation counts from SEAI annual report 2025. Northern Ireland counties (Antrim, Armagh, Derry, Down, Fermanagh, Tyrone) are not included in SEAI rankings.
Best counties for solar panels in Ireland
Ireland’s southeast dominates solar yield, with Wexford, Waterford, and Wicklow generating 7–9% above the national average. Dublin ranks 4th thanks to being Ireland’s driest county. But even lower-ranked counties exceed 817 kWh/kWp — solar is worth it everywhere in Ireland.
Solar Panels in Wexford
Yield
965 kWh/kWp
4kWp output
3,860 kWh/yr
Sunshine
1,540 hrs/yr
SEAI installs
1,278
Solar Panels in Waterford
Yield
949 kWh/kWp
4kWp output
3,796 kWh/yr
Sunshine
1,465 hrs/yr
SEAI installs
840
Solar Panels in Wicklow
Yield
947 kWh/kWp
4kWp output
3,788 kWh/yr
Sunshine
1,448 hrs/yr
SEAI installs
1,275
Solar Panels in Dublin
Yield
915 kWh/kWp
4kWp output
3,660 kWh/yr
Sunshine
1,500 hrs/yr
SEAI installs
7,044
Solar Panels in Carlow
Yield
911 kWh/kWp
4kWp output
3,644 kWh/yr
Sunshine
1,490 hrs/yr
SEAI installs
438
Solar Panels in Cork
Yield
907 kWh/kWp
4kWp output
3,628 kWh/yr
Sunshine
1,380 hrs/yr
SEAI installs
3,603
Solar panels across all 32 Irish counties
Select your county to see local solar yield data, find SEAI-registered installers, get town-level information, and request free quotes. Every county page includes solar output data, grant details, and installer listings.
Leinster
Munster
SEAI solar panel grants in Ireland (2026)
The Sustainable Energy Authority of Ireland (SEAI) offers grants of up to €1,800 for residential solar PV installations. Combined with 0% VAT and feed-in tariffs, solar panels typically pay for themselves in 4–6 years.
- €700/kWp for first 2 kWp installed
- €200/kWp from 2–4 kWp
- Maximum grant: €1,800
- 0% VAT on residential installs
- Feed-in tariffs: 15–32c/kWh
- First €400/yr export income tax-free
How do solar panels work in Ireland?
Solar panels in Ireland convert sunlight into electricity using photovoltaic (PV) cells made from silicon. Ireland receives between 1,100 and 1,540 sunshine hours per year depending on location — less than southern Europe, but more than enough for solar panels to generate meaningful electricity. Even on overcast days, panels produce 10–25% of their rated output from diffuse light that penetrates cloud cover.
A typical Irish home uses around 4,200 kWh of electricity per year. A 4.4 kWp solar system (10 panels) generates 3,600–4,300 kWh annually depending on your county, covering 80–100% of that demand. Any surplus is exported to the grid under Ireland’s Microgeneration Support Scheme, earning you 15–32c per kWh. For a full technical breakdown, see our guide to how solar panels work.
Sunlight hits panels
Silicon PV cells absorb photons from sunlight (including diffuse light through clouds) and generate direct current (DC) electricity.
Inverter converts power
A solar inverter converts DC to 230V alternating current (AC), matching your home's electrical supply. Microinverters or string inverters are used.
Power your home
Solar electricity is used in your home first, reducing what you buy from the grid. A smart meter tracks your generation, consumption, and export.
Export surplus
Unused electricity is exported to the grid for 15–32c/kWh, or stored in a battery (5–10 kWh) for evening use. First €400/yr is tax-free.
What affects solar panel performance in Ireland?
Solar panel output in Ireland varies by up to 18% between the best and worst counties (Wexford at 965 kWh/kWp vs Donegal at 817 kWh/kWp). But location is only one factor. Roof orientation, pitch, shading, and panel quality all play a role in how much electricity your system generates.
Roof orientation
South-facing roofs generate the most electricity in Ireland (100% of potential). Southeast and southwest faces produce 95%, east/west 80–85%. North-facing roofs are not recommended.
Roof pitch
The optimal roof angle in Ireland is 30–35° from horizontal. Steeper pitches (40–50°) perform better in winter but slightly worse in summer. Flat roofs use mounting frames to achieve the ideal angle.
Shading
Even partial shading from trees, chimneys, or neighbouring buildings can significantly reduce output. Microinverters or power optimisers mitigate shading by allowing each panel to operate independently.
Panel quality
Tier 1 monocrystalline panels (21–23% efficiency) generate 10–15% more than budget polycrystalline panels. Premium brands like SunPower, REC, and Jinko offer 25-year product warranties.
Seasonal variation in Ireland
Solar panels in Ireland generate approximately 75% of their annual output between April and September, with peak production in May and June when daylight lasts 16–17 hours. Winter months (November–January) contribute just 8–10% of annual output. This is why battery storage and grid export are important — summer surplus offsets winter shortfall through feed-in tariff income. For detailed equipment comparisons, see our solar panel equipment guide.
Solar battery storage in Ireland
Adding a battery to your solar panel system lets you store surplus daytime electricity for evening use, when Irish households typically consume the most power. Without a battery, around 50–60% of solar electricity is exported to the grid at 15–32c/kWh. With a battery, self-consumption rises to 70–85%, and you avoid buying grid electricity at 35–42c/kWh during peak hours.
A 5 kWh battery costs approximately €3,000–€4,500 installed, while a 10 kWh unit costs €5,500–€7,500. Popular battery brands in Ireland include the Huawei LUNA, BYD HVS, Tesla Powerwall, and GivEnergy All-in-One. Most batteries are warranted for 10–12 years or 6,000–10,000 cycles. There is currently no separate SEAI grant for batteries, but they can be installed alongside grant-supported solar PV systems. For a personalised estimate of how a battery would affect your savings, try our solar savings calculator.
Are home solar panels worth it in Ireland in 2026?
Solar panels for your house are one of the strongest home investments available in Ireland today. The economics are driven by three factors: high electricity prices (35–42c/kWh from the grid), generous government support (SEAI grants + 0% VAT), and feed-in tariffs that pay you for surplus energy exported to the grid at 15–32c/kWh.
A worked example: a 4.4 kWp system in Dublin costs approximately €5,900 net after the €1,800 SEAI grant. It generates 3,660 kWh per year. Assuming 50% self-consumption at 38c/kWh savings (€696/yr) and 50% export at 24c/kWh (€439/yr), annual benefit is €1,135 — giving a payback period of 5.2 years. Over 25 years, total benefit exceeds €25,000.
The financial case is even stronger with a battery (self-consumption rises to 70–85%) or if electricity prices continue to rise. Solar panels also improve your BER rating by 1–2 grades, which increases property resale value. Over 160,000+ Irish homes have already installed solar panels through the SEAI scheme. For a personalised ROI calculation, use our solar savings calculator.
Financial savings
- Save 50–70% on electricity bills
- €20,000–€30,000 saved over 25 years
- Feed-in tariffs earn €200–€400/yr
- 3–4x return on investment
Grants & incentives
- SEAI grant up to €1,800
- 0% VAT on residential installs
- First €400/yr export income tax-free
- Accelerated Capital Allowances for businesses
Home value & environment
- Improve your BER rating by 1–2 grades
- Increase property value by up to 4%
- Reduce carbon emissions by 1.5 tonnes/yr
- Panels last 25–30 years with minimal maintenance
Free solar tools and resources
Use these free tools to estimate your savings, compare installers, and check your county’s solar potential. All tools use real Irish solar irradiance data and current SEAI grant rates.
Solar Calculator
Calculate savings, payback period, and annual generation based on your county and roof.
ExploreSolar Irradiance Map
Interactive map showing solar energy potential across all 32 Irish counties.
ExploreFind Installers
Browse 588+ SEAI-registered solar installers. Filter by county and technology.
ExploreSEAI Grant Guide
Complete guide to SEAI grants, eligibility, how to apply, and how to maximise your grant.
ExploreSolar Panels Ireland: Frequently Asked Questions
How much do solar panels cost in Ireland?
A typical 4.4 kWp home solar panel system (10 PV panels) costs approximately €7,700 before the SEAI grant, or around €5,900 after the €1,800 grant. 0% VAT applies to all residential installations. PV panel prices range from €4,500 (2 kWp) to €10,800+ (6.6 kWp) depending on system size and equipment quality.
What SEAI grants are available for solar panels?
SEAI offers grants of €700/kWp for the first 2 kWp and €200/kWp for 2–4 kWp, up to a maximum of €1,800. Your home must be built before 2021, and the installer must be SEAI-registered. The grant is paid directly to your installer, so you only pay the net cost.
Are solar panels worth it in Ireland?
Yes. With the SEAI grant of up to €1,800, 0% VAT, and feed-in tariffs of 15–32c/kWh, a typical system pays for itself in 4–6 years and generates free electricity for 25+ years. Over 160,000+ Irish homes have already installed solar panels. Total 25-year savings reach €20,000–€30,000.
How many solar panels do I need for my home?
Most Irish homes need 8–12 panels (3.5–5.3 kWp). The most popular size is 10 panels (4.4 kWp), which maximises the SEAI grant and covers 80–100% of average household electricity use of approximately 4,200 kWh per year.
Do solar panels work on cloudy days in Ireland?
Yes. Solar panels generate electricity from all daylight, not just direct sunshine. On cloudy days, panels produce 10–25% of their peak output using diffuse light. Even Ireland's lowest-ranked county (Donegal) generates 817 kWh/kWp per year — enough to make solar financially worthwhile.
Which county in Ireland is best for solar panels?
Wexford is Ireland's top county for solar, generating 965 kWh/kWp — 9% above the national average. Waterford (949), Wicklow (947), and Dublin (915) follow. However, even the lowest-ranked county generates 817 kWh/kWp, so solar is viable everywhere in Ireland.
How long do solar panels last?
Modern solar panels last 25–30 years with minimal maintenance. Performance degrades slowly at 0.3–0.5% per year, so after 25 years they still produce 85–90% of their original output. Inverters typically last 10–15 years and batteries 10–12 years.
Can I sell excess solar electricity back to the grid?
Yes. Under Ireland's Microgeneration Support Scheme and Clean Export Guarantee (CEG), all electricity suppliers must offer a feed-in tariff for exported solar electricity. Rates range from 15c to 32c per kWh. The first €400 per year in export income is tax-free.
How long does it take to install solar panels?
Installation typically takes 1–2 days for a standard residential system. The full process from enquiry to switch-on usually takes 4–8 weeks, including survey, paperwork, SEAI grant application, and ESB meter upgrade.
Do I need planning permission for solar panels in Ireland?
No. Most residential roof solar panels are exempt from planning permission in Ireland, provided panels don't project more than 15cm from the roof surface and don't cover more than 50% of the total roof area. Listed buildings and apartments may have additional requirements.
What are PV panels and are they the same as solar panels?
Yes. PV panels (photovoltaic panels) and solar panels are the same thing — they convert sunlight into electricity for your home. When people in Ireland say 'solar panels' they mean solar PV panels. A home solar system typically includes PV panels on your roof, an inverter, and optionally a battery. Solar PV is the type that qualifies for the SEAI grant of up to €1,800.
Get your free solar quote
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