Solar Panels in Dun Laoghaire, Co. Dublin
Dun Laoghaire is a village in Co. Dublin with a population of around 400. Located 10.4 km from Dublin, the area has a solar yield of 796 kWh/kWp. A 4kWp solar system generates approximately 3,184 kWh annually, saving an estimated €955+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Dun Laoghaire solar yield and performance data
| Solar Metric | Value |
|---|---|
| Solar Yield | 796 kWh/kWp |
| 4kWp System Output | 3,184 kWh/yr |
| Sunshine Hours | 1,500 hrs/yr |
| Est. Annual Savings | €955+ |
| Household Coverage | 76% of avg use |
Solar yield calculated for Dun Laoghaire (53.29°N, 6.14°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Dun Laoghaire
kWh per month (4kWp system)
Dun Laoghaire at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Houses/Bungalows (Co. Dublin avg.) | 71% of dwellings |
| Owner-Occupied (Co. Dublin avg.) | 57% |
| Built Before 2000 (Co. Dublin avg.) | 73% |
| Avg. Rooms per Home (Co. Dublin avg.) | 4.8 |
| Elevation | 24 metres |
| Eircode Area | A96 |
| Dist. to Dublin | 10.4 km |
| Location | Inland |
| Coordinates | 53.2923°N, 6.1360°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Dublin Airport, 16.6 km).
Weather & Climate in Dun Laoghaire
Weather data from Met Eireann (Dublin Airport station, 16.6 km from Dun Laoghaire). 5-year average (2019–2023).
Solar Suitability in Dun Laoghaire
Across Co. Dublin, 71% of dwellings are houses or bungalows, with good potential for rooftop solar installations. 57% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 73% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
Going Solar in Dun Laoghaire
Dun Laoghaire is a village in Co. Dublin with a population of 400 (CSO Census 2022). It is a short drive from Dublin (10.4 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Dun Laoghaire is A96. You'll need your full Eircode when applying for the SEAI grant. Across the wider Dublin area, 71% of dwellings are houses or bungalows and 57% are owner-occupied (Census 2022). Homeowners in Dun Laoghaire with a south, east, or west-facing roof are well positioned for solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 3,184 kWh per year (796 kWh/kWp). The area has relatively low rainfall (798 mm/yr), with a mean temperature of 9.9°C.
Solar panel benefits in Dun Laoghaire, Dublin
Save on Electricity Bills
Homeowners in Dun Laoghaire can save an estimated €955+ per year on electricity with a 4kWp solar system generating 3,660 kWh annually.
SEAI Grant: Up to €1,800
Get up to €1,800 back from SEAI. The grant is available for homes built before 2021. No means testing. Apply online at seai.ie.
0% VAT on Installation
Residential solar installations are zero-rated for VAT since May 2023, saving approximately €1,000 on a typical system.
Earn from Excess Energy
Sell surplus electricity at 15-25c/kWh through the Microgeneration Support Scheme. The first €400/year is tax-free.
Top Solar County in Ireland
Co. Dublin ranks #4 in Ireland for solar yield with 915 kWh/kWp. Homes in Dun Laoghaire benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Dun Laoghaire today will generate clean electricity for 25-30 years with minimal maintenance.
Dun Laoghaire SEAI solar PV grant details
Homeowners in Dun Laoghaire, Co. Dublin can apply for the SEAI solar PV grant. The maximum grant of €1,800 is confirmed for 2026.
| System Size | Grant Amount | Typical Net Cost |
|---|---|---|
| 2 kWp | €1,400 | €2,000 - €3,000 |
| 3 kWp | €1,600 | €2,500 - €4,000 |
| 4 kWp+ | €1,800 (max) | €3,200 - €6,200 |
Solar Installers in Dublin
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Solar Panel FAQs for Dun Laoghaire
How much do solar panels cost in Dun Laoghaire?
A 4kWp system in Dun Laoghaire typically costs €5,000-€8,000 before grants. After the €1,800 SEAI grant and 0% VAT, the net cost is €3,200-€6,200. The system generates approximately 3,660 kWh/year, paying for itself in 4-6 years.
What is the payback period for solar panels in Dun Laoghaire?
With a net cost of €3,200-€6,200 after the SEAI grant and savings of €955+ per year plus export income, a typical solar system in Dun Laoghaire pays for itself in 4-6 years. After payback, you get 20+ years of near-free electricity.
Do I need to clean my solar panels?
In most cases, rain keeps solar panels clean enough in Ireland. If your panels are near trees or at a low angle, an annual clean may improve output by 2-5%. Never use abrasive materials. A soft brush and water is sufficient.
Can I add a battery to my solar system?
Yes. A home battery (typically 5-10 kWh) stores excess solar electricity for evening use. This increases your self-consumption from around 30-40% to 60-80%. Batteries currently cost €3,000-€6,000 and are not yet covered by the SEAI grant.
Do solar panels work in winter in Dublin?
Yes, solar panels generate electricity all year round. While output is lower in winter, Dublin still receives usable daylight hours even in December. Annual generation figures (3,660 kWh for a 4kWp system) already account for seasonal variation.
What roof direction is best for solar panels in Dun Laoghaire?
South-facing roofs produce the most electricity (100% of potential). South-east and south-west roofs produce around 95%. East or west-facing roofs still produce 80-85%. North-facing roofs are generally not recommended for solar panels in Ireland.
What size solar system do I need for my home in Dun Laoghaire?
Most homes in Dun Laoghaire benefit from a 3-6 kWp system. A 4kWp system (10 panels) covers 76% of average household electricity use. Your installer will assess your roof space, orientation, and energy usage to recommend the optimal size.
Sources
- SEAI — Solar Electricity Grant
- SEAI — Find a Registered Professional
- Revenue — 0% VAT on Solar Panels
- PVGIS — EU Joint Research Centre (solar irradiance data)
- CSO — Census of Population 2022
- Met Eireann — Climate Data
Last updated: March 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
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