Solar Panels in Achill Island, Co. Mayo
Achill Island, in rural Co. Mayo, receives 1,105+ sunshine hours per year — ideal conditions for solar energy. A 4kWp system generates approximately 3,364 kWh annually, covering 80% of average household electricity use and saving an estimated €1009+ 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.
How much solar energy can you generate in Achill Island?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Eircode Area
Dist. to Castlebar
Location
Based on county-level solar data for Mayo. Actual output varies by roof orientation, shading, and system specification.
Solar Power in Achill Island, Co. Mayo
Achill Island is a rural area in Co. Mayo. It is located away from Castlebar (51.2 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Achill Island is F28 — you'll need your full Eircode when applying for the SEAI grant.
Advantages of Solar Energy for Achill Island Homeowners
Save on Electricity Bills
Homeowners in Achill Island can save an estimated €1009+ per year on electricity with a 4kWp solar system generating 3,364 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.
Energy Independence
For homes in rural Achill Island, solar panels provide energy security and reduced reliance on the grid. Combined with a battery, you can store power for evening use.
25+ Year Lifespan
A system installed in Achill Island today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Achill Island homeowners claim?
Homeowners in Achill Island, Co. Mayo 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 Mayo
SEAI registered solar panel installers covering Mayo.
Solar Panels in Areas Near Achill Island
Also serving nearby areas in Mayo:
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Browse SEAI-registered installers covering Achill Island and all of Mayo.
Common Questions About Going Solar in Achill Island
How much do solar panels cost in Achill Island?
A 4kWp system in Achill Island 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 3,364 kWh/year, paying for itself in 4-6 years.
How much electricity will solar panels generate in Achill Island?
Based on Mayo county data, a 4kWp system in Achill Island generates approximately 3,364 kWh per year — covering 80% of average household use (4,200 kWh/year). Mayo receives around 1,105 sunshine hours annually.
Are solar panels worth it in Achill Island?
Yes. With estimated savings of €1009+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Achill Island pays for itself in 4-6 years and lasts 25+ years.
Is my roof suitable for solar panels in Achill Island?
Most roofs are suitable. You need at least 15-20 m² of unshaded roof space for a typical 4kWp system (10 panels). South, east, or west-facing roofs work well. Your installer will assess your roof's orientation, angle, and structural suitability during a site survey.
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.
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.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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