Solar Panels in Arranmore Island, Co. Donegal
Arranmore Island is a village in Co. Donegal with a population of around 400. Located 50.9 km from Letterkenny, the area has a solar yield of 738 kWh/kWp. A 4kWp solar system generates approximately 2,952 kWh annually, saving an estimated €886+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
How productive are solar panels in Arranmore Island?
| Solar Metric | Value |
|---|---|
| Solar Yield | 738 kWh/kWp |
| 4kWp System Output | 2,952 kWh/yr |
| Sunshine Hours | 1,175 hrs/yr |
| Est. Annual Savings | €886+ |
| Household Coverage | 70% of avg use |
Solar yield calculated for Arranmore Island (55.00°N, 8.53°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Arranmore Island
kWh per month (4kWp system)
Arranmore Island at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 196 metres |
| Eircode Area | F94 |
| Dist. to Letterkenny | 50.9 km |
| Location | Inland |
| Coordinates | 54.9959°N, 8.5294°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Finner, 58.8 km).
Weather & Climate in Arranmore Island
Weather data from Met Eireann (Finner station, 58.8 km from Arranmore Island). 5-year average (2019–2023).
About Solar Energy in Arranmore Island
Arranmore Island is a village in Co. Donegal with a population of 400 (CSO Census 2022). It is located away from Letterkenny (50.9 km), where most SEAI-registered installers in the county are based. At an elevation of 196 metres, installations in Arranmore Island should consider potential wind exposure when planning panel mounting. The Eircode routing key for Arranmore Island is F94. You'll need your full Eircode when applying for the SEAI grant. Based on satellite data for this location, a 4kWp solar system generates approximately 2,952 kWh per year (738 kWh/kWp). The area has higher rainfall (1246 mm/yr), with a mean temperature of 10.4°C.
Benefits of Solar Panels in Arranmore Island
Save on Electricity Bills
Homeowners in Arranmore Island can save an estimated €886+ per year on electricity with a 4kWp solar system generating 3,268 kWh annually.
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.
Government Support for Solar in Arranmore Island
Homeowners in Arranmore Island, Co. Donegal can claim up to €1,800 from the SEAI solar PV grant (2026). Combined with 0% VAT, the net cost of a 4kWp system is typically €3,200–€6,200.
278 SEAI-registered solar installers serve Arranmore Island, Co. Donegal. Compare installers in Donegal or read verified reviews.
Solar Installers in Donegal
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What Arranmore Island homeowners ask about solar
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 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.
Is my roof suitable for solar panels in Arranmore 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.
Can I sell excess solar electricity?
Yes. Under Ireland's Microgeneration Support Scheme, you sell surplus electricity at 15-25c/kWh. You need a smart meter (ESB Networks installs free). The first €400/year of export income is tax-free.
Do I need a smart meter for solar panels?
You need a smart meter to sell surplus electricity back to the grid. ESB Networks installs smart meters for free. Your installer submits the NC6 form to ESB Networks after installation, which triggers the meter upgrade if needed.
What happens to my solar panels if I move house in Arranmore Island?
Solar panels stay with the property as a permanent fixture. They add value to your home for the next buyer. The SEAI grant does not need to be repaid if you sell. Your installer can transfer monitoring accounts to the new owner.
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: April 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
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