Solar Panels in Mahon, Co. Cork
Located just 5.4 km from Cork City, Mahon receives 1,380+ sunshine hours per year — among the highest in Ireland. A 4kWp system generates approximately 3,628 kWh annually, covering 86% of average household electricity use and saving an estimated €1088+ per year. With 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.
What is the solar potential in Mahon?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Eircode Area
Dist. to Cork City
Location
Based on county-level solar data for Cork. Actual output varies by roof orientation, shading, and system specification.
About Solar Energy in Mahon
Mahon is a area near the county town in Co. Cork. It is conveniently close to Cork City (5.4 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Mahon is T45 — you'll need your full Eircode when applying for the SEAI grant. Co. Cork ranks #6 in Ireland for solar yield, making Mahon an excellent location for solar panels.
Benefits of Solar Panels in Mahon
Save on Electricity Bills
Homeowners in Mahon can save an estimated €1088+ per year on electricity with a 4kWp solar system generating 3,628 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. Cork ranks #6 in Ireland for solar yield with 907 kWh/kWp. Homes in Mahon benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Mahon today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Mahon
Homeowners in Mahon, Co. Cork 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 Cork
SEAI registered solar panel installers covering Cork.
Where can you find solar installers near Mahon?
Also serving nearby areas in Cork:
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Browse SEAI-registered installers covering Mahon and all of Cork.
Solar Panel FAQs for Mahon
How much do solar panels cost in Mahon?
A 4kWp system in Mahon 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 3,628 kWh/year, paying for itself in 4-6 years.
How much electricity will solar panels generate in Mahon?
Based on Cork county data, a 4kWp system in Mahon generates approximately 3,628 kWh per year — covering 86% of average household use (4,200 kWh/year). Cork receives around 1,380 sunshine hours annually.
Are solar panels worth it in Mahon?
Yes. With estimated savings of €1088+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Mahon pays for itself in 4-6 years and lasts 25+ years.
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.
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.
How do I get the SEAI grant in Mahon?
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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