Solar Panels in Duncannon, Co. Wexford
Duncannon is a coastal village in Co. Wexford with a population of around 281. Located 34.5 km from Wexford Town, the area has a solar yield of 965 kWh/kWp. A 4kWp solar system generates approximately 3,860 kWh annually, saving an estimated €1158+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Duncannon solar yield and performance data
| Solar Metric | Value |
|---|---|
| Solar Yield | 965 kWh/kWp |
| 4kWp System Output | 3,860 kWh/yr |
| Sunshine Hours | 1,540 hrs/yr |
| Est. Annual Savings | €1158+ |
| Household Coverage | 92% of avg use |
Based on county-level solar data for Wexford. Actual output varies by roof orientation, shading, and system specification.
Duncannon at a Glance
| Area Data | Value |
|---|---|
| Population | 281 (Census 2022) |
| Households | 114 |
| Houses/Bungalows | 96% of dwellings |
| Owner-Occupied | 68% |
| Built Before 2000 | 73% |
| Avg. Rooms per Home | 5.6 |
| Elevation | 11 metres |
| Eircode Area | X91 |
| Dist. to Wexford Town | 34.5 km |
| Location | Coastal |
| Coordinates | 52.2211°N, 6.9335°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Johnstown Castle, 30.9 km).
Weather & Climate in Duncannon
Weather data from Met Eireann (Johnstown Castle station, 30.9 km from Duncannon). 5-year average (2019–2023).
Solar Suitability in Duncannon
96% of dwellings in Duncannon are houses or bungalows, making the area highly suited for rooftop solar panels. 68% 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 Duncannon
Duncannon is a village in Co. Wexford with a population of 281 (CSO Census 2022). It is accessible from Wexford Town (34.5 km), where most SEAI-registered installers in the county are based. Duncannon's coastal position means good exposure to sunlight, though installations should account for higher wind loads and salt air. The Eircode routing key for Duncannon is X91. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Duncannon has 114 households, of which 96% are houses or bungalows — well suited for rooftop solar panels. The area receives around 1,540 sunshine hours annually, allowing a 4kWp solar system to generate approximately 3,860 kWh per year. The area has moderate rainfall (1114 mm/yr), with a mean temperature of 10.6°C.
Solar panel benefits in Duncannon, Wexford
Save on Electricity Bills
Homeowners in Duncannon can save an estimated €1158+ per year on electricity with a 4kWp solar system generating 3,860 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.
Coastal Location Advantage
Duncannon's coastal position often means fewer obstructions and clearer horizons for solar exposure. Modern panels are designed to withstand coastal conditions including salt air.
25+ Year Lifespan
A system installed in Duncannon today will generate clean electricity for 25-30 years with minimal maintenance.
Duncannon SEAI solar PV grant details
Homeowners in Duncannon, Co. Wexford 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 Wexford
SEAI registered solar panel installers covering Wexford.
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Solar Panel FAQs for Duncannon
How much do solar panels cost in Duncannon?
A 4kWp system in Duncannon 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 3,860 kWh/year, paying for itself in 4-6 years.
What is the payback period for solar panels in Duncannon?
With a net cost of €3,200-€6,200 after the SEAI grant and savings of €1158+ per year plus export income, a typical solar system in Duncannon pays for itself in 4-6 years. After payback, you get 20+ years of near-free electricity.
What is a BER assessment and do I need one?
A Building Energy Rating (BER) assessment is required after installing solar panels to claim the SEAI grant. A BER assessor visits your home and rates its energy efficiency from A1 to G. Solar panels typically improve your BER by 1-2 grades. The assessment costs around €150-€200.
What happens during a power cut?
Standard grid-tied solar systems shut down during a power cut for safety reasons (to protect ESB workers). If you need backup power, you can install a hybrid inverter with battery storage that provides power during outages.
Do I need planning permission for solar panels?
Most residential solar installations are exempt from planning permission, provided panels don't project more than 15cm from the roof and don't cover more than 50% of total roof area.
How long do solar panels last?
Modern solar panels are warrantied for 25-30 years and typically last even longer. Panel efficiency degrades by about 0.5% per year, so after 25 years, your panels will still produce around 87% of their original output. Inverters typically last 10-15 years and may need one replacement.
How does shading affect solar panels in Duncannon?
Shading from trees, chimneys, or nearby buildings can reduce output significantly. Modern systems use optimisers or microinverters so that shading on one panel doesn't drag down the whole system. Your installer will assess shading during the site survey.
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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