Solar Panels in Lettermacaward, Co. Donegal
Lettermacaward is a village in Co. Donegal with a population of around 400. Located 39.1 km from Letterkenny, the area has a solar yield of 709 kWh/kWp. A 4kWp solar system generates approximately 2,836 kWh annually, saving an estimated €851+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
What is the solar potential in Lettermacaward?
| Solar Metric | Value |
|---|---|
| Solar Yield | 709 kWh/kWp |
| 4kWp System Output | 2,836 kWh/yr |
| Sunshine Hours | 1,175 hrs/yr |
| Est. Annual Savings | €851+ |
| Household Coverage | 68% of avg use |
Solar yield calculated for Lettermacaward (54.85°N, 8.32°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Lettermacaward
kWh per month (4kWp system)
Lettermacaward at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 20 metres |
| Eircode Area | F94 |
| Dist. to Letterkenny | 39.1 km |
| Location | Inland |
| Coordinates | 54.8481°N, 8.3164°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Finner, 39.7 km).
Weather & Climate in Lettermacaward
Weather data from Met Eireann (Finner station, 39.7 km from Lettermacaward). 5-year average (2019–2023).
Solar Power in Lettermacaward, Co. Donegal
Lettermacaward is a village in Co. Donegal with a population of 400 (CSO Census 2022). It is accessible from Letterkenny (39.1 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Lettermacaward 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 2,836 kWh per year (709 kWh/kWp). The area has higher rainfall (1246 mm/yr), with a mean temperature of 10.4°C.
Advantages of Solar Energy for Lettermacaward Homeowners
Save on Electricity Bills
Homeowners in Lettermacaward can save an estimated €851+ 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 Lettermacaward, 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 Lettermacaward today will generate clean electricity for 25-30 years with minimal maintenance.
Solar grants available in Lettermacaward
Homeowners in Lettermacaward, 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.
Top Rated Solar Installers Near Lettermacaward
Read verified reviews from solar panel installers serving Lettermacaward, Co. Donegal.
Areas around Lettermacaward we serve
Also serving nearby areas in Donegal:
Find Solar Installers in Donegal
Browse SEAI-registered installers covering Lettermacaward and all of Donegal.
Your solar questions for Lettermacaward
How much do solar panels cost in Lettermacaward?
A 4kWp system in Lettermacaward 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.
Do I need to clean my solar panels?
In most cases, rain keeps solar panels clean enough in Ireland. If your panels are near trees or at a low angle, an annual clean may improve output by 2-5%. Never use abrasive materials. A soft brush and water is sufficient.
Can I get solar panels on an east or west facing roof in Lettermacaward?
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.
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 solar panels work in winter in Donegal?
Yes, solar panels generate electricity all year round. While output is lower in winter, Donegal still receives usable daylight hours even in December. Annual generation figures (3,268 kWh for a 4kWp system) already account for seasonal variation.
What happens to my solar panels if I move house in Lettermacaward?
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.
How much electricity will solar panels generate in Lettermacaward?
Based on Donegal county data, a 4kWp system in Lettermacaward generates approximately 3,268 kWh per year, covering 68% of average household use (4,200 kWh/year). Donegal receives around 1,175 sunshine hours annually.
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 Lettermacaward
Connect with SEAI-registered installers covering Lettermacaward, Co. Donegal.