Solar Panels in Achill Island, Co. Mayo
Achill Island is a village in Co. Mayo with a population of around 400. Located 51.2 km from Castlebar, the area has a solar yield of 776 kWh/kWp. A 4kWp solar system generates approximately 3,104 kWh annually, saving an estimated €931+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
How much solar energy can you generate in Achill Island?
| Solar Metric | Value |
|---|---|
| Solar Yield | 776 kWh/kWp |
| 4kWp System Output | 3,104 kWh/yr |
| Sunshine Hours | 1,105 hrs/yr |
| Est. Annual Savings | €931+ |
| Household Coverage | 74% of avg use |
Solar yield calculated for Achill Island (53.95°N, 10.01°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Achill Island
kWh per month (4kWp system)
Achill Island at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 75 metres |
| Eircode Area | F28 |
| Dist. to Castlebar | 51.2 km |
| Location | Inland |
| Coordinates | 53.9522°N, 10.0094°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Newport, 28.7 km).
Weather & Climate in Achill Island
Weather data from Met Eireann (Newport station, 28.7 km from Achill Island). 5-year average (2019–2023).
Achill Island and Renewable Energy
Achill Island is a village in Co. Mayo with a population of 400 (CSO Census 2022). 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. Based on satellite data for this location, a 4kWp solar system generates approximately 3,104 kWh per year (776 kWh/kWp). The area has higher rainfall (1785 mm/yr), with a mean temperature of 10.9°C.
What Achill Island homeowners gain from solar
Save on Electricity Bills
Homeowners in Achill Island can save an estimated €931+ 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.
How to claim the SEAI grant in Achill Island
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.
Top Rated Solar Installers Near Achill Island
Read verified reviews from solar panel installers serving Achill Island, Co. Mayo.
Towns near Achill Island for solar installation
Also serving nearby areas in Mayo:
Find Solar Installers in Mayo
Browse SEAI-registered installers covering Achill Island and all of Mayo.
Frequently Asked Questions About Solar Panels 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.
Do solar panels work in winter in Mayo?
Yes, solar panels generate electricity all year round. While output is lower in winter, Mayo still receives usable daylight hours even in December. Annual generation figures (3,364 kWh for a 4kWp system) already account for seasonal variation.
Do solar panels increase property value in Achill Island?
Yes. Solar panels improve your BER rating and can increase property value by up to 4%. Buyers increasingly look for energy-efficient homes with lower running costs. A solar system in Achill Island is a long-term investment in your property.
What is the Microgeneration Support Scheme?
The Microgeneration Support Scheme allows homeowners to sell surplus solar electricity back to the grid at 15-25c/kWh. You need a smart meter (free from ESB Networks) and a grid-connected system. The first €400/year of export income is tax-free.
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.
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.
What roof direction is best for solar panels in Achill 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.
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: March 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Get a Free Solar Quote in Achill Island
Connect with SEAI-registered installers covering Achill Island, Co. Mayo.