Solar panels Limerick: free advice, grants explained and quotes from SEAI-registered installers
Whether it’s a semi-d in Castletroy, a farmhouse near Kilmallock or a unit in Raheen, we explain the rules and grants, then match you with registered installers who survey and quote.
Get Solar QuotesCheck Your Grant OptionsSolar panels Limerick: the local picture
Anyone weighing up solar panels Limerick-side deals with one council, a county that sits right on the national average for solar yield, and two aviation zones linked to the Shannon estuary. This page sets out what a typical home could generate, the planning rules, what changes for business parks and farms, the grants available in October 2026, and how to get quotes.
Right on the national average
PureVolt’s county figures give Limerick 910 kWh per kWp a year, almost exactly the national average of 913.
Plenty of headroom
In April 2022, 3,908 Limerick homes had solar panels, 5% of occupied dwellings, a little below the 6% national share (CSO Census 2022).
One council
Limerick City and County Council handles planning for the whole county, city and rural alike, so there’s one set of local records to check.
How much will solar panels generate in Limerick?
PureVolt ran the EU’s PVGIS model (SARAH-3 satellite data) for one representative point in each county, with panels at a 30° tilt, facing due south, with standard losses and no shading. Limerick’s result is 910 kWh per kWp per year, compared with 986 in Cork, the top county, and a national average of 913.
Being average is not a problem: solar is installed and grant-aided in every county, and Limerick is mid-table, not at the bottom. What matters more is your own roof: its pitch, direction and any shade from trees or neighbouring buildings.
Source: PureVolt, Counties of Ireland ranked for solar, checked 26 Oct 2026.
Illustrative: a 4 kWp home system in Limerick
4 kWp × 910 kWh/kWp ≈ 3,640 kWh a year on an unshaded, south-facing 30° roof.
The CRU puts average household electricity use at 4,200 kWh a year (via bonkers.ie). Your saving depends on how much of that output you use as it’s generated, your tariff, export payments and whether a battery suits you; see our battery advice.
Illustrative only. Typical prices are in our cost of solar panels in Ireland guide.
Planning permission for solar panels in Limerick
Limerick City and County Council is the planning authority for the whole county. It applies the national exemptions in S.I. No. 493 of 2022, which removed the old limits on rooftop panels on houses (Limerick Post).
Houses
Rooftop panels on a house are exempt with no area limit, if they sit no more than 15cm off a pitched roof (50cm on a flat roof) and at least 50cm from the edge. Garden arrays are exempt up to 25m² and 2.5m high, behind the front wall. Wall-mounted panels are not exempt.
Business premises
Rooftop solar on business, light industrial and industrial buildings has no area limit outside a Solar Safeguarding Zone. Inside one, it’s capped at 300m² per roof, and the council must be notified within 4 weeks of work starting.
Farms
Panels on farm buildings are exempt subject to conditions, provided the power is used primarily (over 50%) on the holding. Ground arrays are exempt up to 75m² and 2.5m high. See our farm solar guide.
Shannon, Coonagh and the Limerick safeguarding zones
Solar Safeguarding Zones are areas around airports, aerodromes and helipads where glint and glare could affect aviation safety (gov.ie). S.I. No. 492 of 2022 lists three that cover parts of Limerick:
- Shannon Airport (Counties Clare and Limerick).
- Coonagh (Counties Clare and Limerick): Coonagh Airfield on the Ennis Road is home to Limerick Flying Club (limerick.ie).
- University Hospital Limerick (County Limerick).
Houses are not affected: there is no rooftop limit on a house inside or outside a zone. The 300m² cap and 4-week notice apply to business, farm, apartment and community buildings within them. Ask your installer to check the zone maps early for any non-house building.
Protected structures and ACAs
All the solar exemptions are subject to the general restrictions on protected structures and Architectural Conservation Areas. Works that would normally be exempt may not be on a protected structure, and free-standing panels in an ACA are only exempt if they wouldn’t materially affect its character. If your building is on the Record of Protected Structures, ask the council for a Section 57 declaration.
Summary only, not legal advice. Sources: S.I. 493/2022, S.I. 492/2022, gov.ie, Fieldfisher.
Business parks and the Shannon region
Limerick is home to established business parks. IDA Raheen Business Park sits about 7km from the city, 28km from Shannon Airport and 36km from Shannon Foynes Port (IDA Ireland), and the National Technology Park is at Plassey (Limerick Leader). Business units often have large, simple roofs and daytime loads, which is where commercial solar earns its keep.
For businesses the main support is the SEAI Non-Domestic Microgen grant: an effective 45% for applications from 6 October 2026 to 6 July 2027, up to €325,200. You need a contract with an SEAI-registered non-domestic solar company before you apply, and your installer must apply to ESB Networks at least 4 weeks (20 working days) before installing (SEAI).
Which buildings?
Offices, warehouses, factories, retail, hotels, schools and community centres can all apply to SEAI. See industries we service for sector guides.
County Limerick farms
Dairy and drystock farms across the county can use TAMS 3 (60%, €90,000 ceiling) or the SEAI business grant at 45%.
Solar grants for Limerick homes
Checked 26 October 2026:
- Standard SEAI grant: €700 per kWp up to 2 kWp and €200 per extra kWp up to 4 kWp, with panels capped at €1,800, plus €600 for a 5 kWh battery: €2,400 maximum.
- Eligibility: the house must have been built and occupied before 2025, and you must use an SEAI-registered solar PV company.
- Enhanced grant: up to €9,000 for homeowners in receipt of a qualifying social welfare payment.
See our solar grants guide for the application steps and solar panels for homes for sizing.
| First 2 kWp | €700 per kWp |
| Each extra kWp, up to 4 kWp | €200 per kWp |
| Panel grant cap | €1,800 |
| 5 kWh battery | €600 |
| Maximum standard grant | €2,400 |
| Enhanced grant (qualifying welfare households) | up to €9,000 |
| SEAI business grant (apps 6 Oct 2026–6 Jul 2027) | 45%, max €325,200 |
| TAMS 3 solar (farms) | 60%, €90k ceiling |
House must have been built and occupied before 2025. Sources: SEAI domestic, SEAI business, Teagasc on TAMS 3. Grant rules change; confirm before you sign.
Towns and areas covered in Limerick
Limerick City and suburbs
Castletroy, Annacotty, Dooradoyle, Raheen, Corbally, Caherdavin, Ballinacurra, Mungret, Castleconnell
West Limerick
Newcastle West, Abbeyfeale, Rathkeale, Askeaton, Foynes, Glin, Adare, Patrickswell
East and South Limerick
Kilmallock, Bruff, Hospital, Croom, Caherconlish, Cappamore, Murroe, Kilfinane
Near the Clare or Tipperary border? Check our service area.
How Solar123 works
Solar123 is an independent advice and quote-matching service. We don’t install anything ourselves: with your consent, we pass your enquiry to SEAI-registered installers who cover Limerick, and they survey and quote.
Your Eircode, the building type (home, farm, business unit), roof direction, rough annual electricity use and, for businesses, whether you lease or own the building.
We talk you through grants, planning and battery options so you know what to ask. See our battery storage advice if you’re weighing up storage.
They check your roof, shading and electrics and give you a written price. Use our guide to comparing solar quotes to line them up like for like.
No obligation. If you go ahead, your installer and SEAI set out the grant steps. Ready now? Request a quote.
Solar panels Limerick FAQs
Do I need planning permission for solar panels in Limerick?
Not usually for a house roof: rooftop panels on houses are exempt with no area limit if they meet the S.I. 493/2022 conditions. Protected structures, some ACA sites and wall-mounted panels are the main exceptions.
My business is near Shannon Airport or Coonagh. What changes?
Non-house buildings inside those Solar Safeguarding Zones are limited to 300m² of panels per roof, and you must notify Limerick City and County Council within 4 weeks of starting. Larger systems need planning permission.
Is Limerick a good county for solar?
It’s mid-table: PureVolt’s PVGIS figure of 910 kWh per kWp a year is almost exactly the national average of 913. Your own roof orientation and shading matter more.
How much will a 4 kWp system produce in Limerick?
As an illustration, about 3,640 kWh a year on an unshaded south-facing 30° roof. Ask installers to model your roof.
Can a business in Raheen or Plassey get a grant?
Yes. The SEAI business grant pays an effective 45% for applications from 6 October 2026 to 6 July 2027, up to €325,200, through a registered non-domestic installer.
Is Solar123 a solar installer?
No. We give free advice and, with your consent, pass your enquiry to SEAI-registered installers who survey and quote.
Get your solar quote today
Tell us about your Limerick home, farm or business and we’ll match you with SEAI-registered installers who’ll survey and quote. Or call 089 450 4544
Sending an enquiry is not an official grant application.