Solar Panels in Portmarnock, Co. Dublin
Portmarnock is one of the larger towns in Co. Dublin with a population of 10,587. With 1,500+ sunshine hours per year, solar energy is a strong investment for homeowners here. A typical 4kWp system generates approximately 3,660 kWh annually — covering 87% of average household electricity use. After the SEAI grant of up to €1,800 and 0% VAT, the net cost is €3,200–€6,200 with payback in 4–6 years.
How much solar energy can you generate in Portmarnock?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Population
Eircode Area
Dist. to Dublin
Location
Based on county-level solar data for Dublin. Actual output varies by roof orientation, shading, and system specification.
Solar Power in Portmarnock, Co. Dublin
Portmarnock is a large town in Co. Dublin with a population of 10,587 (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 Portmarnock is D17 — you'll need your full Eircode when applying for the SEAI grant. Co. Dublin ranks #4 in Ireland for solar yield, making Portmarnock an excellent location for solar panels.
Advantages of Solar Energy for Portmarnock Homeowners
Save on Electricity Bills
Homeowners in Portmarnock can save an estimated €1098+ 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 Portmarnock benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Portmarnock today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Portmarnock homeowners claim?
Homeowners in Portmarnock, 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
SEAI registered solar panel installers covering Dublin.
Solar Panels in Areas Near Portmarnock
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Common Questions About Going Solar in Portmarnock
How much do solar panels cost in Portmarnock?
A 4kWp system in Portmarnock 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.
How much electricity will solar panels generate in Portmarnock?
Based on Dublin county data, a 4kWp system in Portmarnock generates approximately 3,660 kWh per year — covering 87% of average household use (4,200 kWh/year). Dublin receives around 1,500 sunshine hours annually.
Are solar panels worth it in Portmarnock?
Yes. With estimated savings of €1098+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Portmarnock pays for itself in 4-6 years and lasts 25+ years.
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.
What maintenance do solar panels need?
Solar panels need very little maintenance. Rain keeps them clean in most cases. There are no moving parts. Your inverter may need replacing once in 25 years (10-15 year lifespan). Annual visual checks and occasional cleaning if near trees is all that's needed.
How do I get the SEAI grant in Portmarnock?
Apply online at seai.ie with your MPRN and Eircode. Use an SEAI-registered installer. Do not start work before your Letter of Offer. After installation, complete a BER assessment. The grant is paid to your bank within 4-6 weeks.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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