Solar Panels in Arranmore Island, Co. Donegal
Arranmore Island, in rural Co. Donegal, receives 1,175+ sunshine hours per year — ideal conditions for solar energy. A 4kWp system generates approximately 3,268 kWh annually, covering 78% of average household electricity use and saving an estimated €980+ 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.
Arranmore Island solar yield and performance data
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Eircode Area
Dist. to Letterkenny
Location
Based on county-level solar data for Donegal. Actual output varies by roof orientation, shading, and system specification.
Arranmore Island and Renewable Energy
Arranmore Island is a rural area in Co. Donegal. It is located away from Letterkenny (50.9 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Arranmore Island is F94 — you'll need your full Eircode when applying for the SEAI grant.
Why Go Solar in Arranmore Island?
Save on Electricity Bills
Homeowners in Arranmore Island can save an estimated €980+ per year on electricity with a 4kWp solar system generating 3,268 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 Arranmore 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 Arranmore Island today will generate clean electricity for 25-30 years with minimal maintenance.
SEAI Solar Grant for Arranmore Island Residents
Homeowners in Arranmore Island, Co. Donegal 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 Donegal
SEAI registered solar panel installers covering Donegal.
Nearby Towns Also Served
Also serving nearby areas in Donegal:
Find Solar Installers in Donegal
Browse SEAI-registered installers covering Arranmore Island and all of Donegal.
Frequently Asked Questions About Solar Panels in Arranmore Island
How much do solar panels cost in Arranmore Island?
A 4kWp system in Arranmore 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 3,268 kWh/year, paying for itself in 4-6 years.
How much electricity will solar panels generate in Arranmore Island?
Based on Donegal county data, a 4kWp system in Arranmore Island generates approximately 3,268 kWh per year — covering 78% of average household use (4,200 kWh/year). Donegal receives around 1,175 sunshine hours annually.
Are solar panels worth it in Arranmore Island?
Yes. With estimated savings of €980+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Arranmore Island pays for itself in 4-6 years and lasts 25+ years.
What roof direction is best for solar panels in Arranmore Island?
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.
How does shading affect solar panels in Arranmore Island?
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.
Can I get solar panels on an east or west facing roof in Arranmore Island?
Yes. East or west-facing roofs still produce 80-85% of the output of a south-facing roof. Many installers recommend splitting panels across east and west to spread generation throughout the day, which can actually improve self-consumption.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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