Solar Panels in Kilmacrennan, Co. Donegal
Kilmacrennan is a small town in Co. Donegal with a population of around 888. Located 8.8 km from Letterkenny, the area has a solar yield of 717 kWh/kWp. A 4kWp solar system generates approximately 2,868 kWh annually, saving an estimated €860+ 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 Kilmacrennan?
| Solar Metric | Value |
|---|---|
| Solar Yield | 717 kWh/kWp |
| 4kWp System Output | 2,868 kWh/yr |
| Sunshine Hours | 1,175 hrs/yr |
| Est. Annual Savings | €860+ |
| Household Coverage | 68% of avg use |
Solar yield calculated for Kilmacrennan (55.03°N, 7.78°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Kilmacrennan
kWh per month (4kWp system)
Kilmacrennan at a Glance
| Area Data | Value |
|---|---|
| Population | 888 (Census 2022) |
| Households | 338 |
| Houses/Bungalows | 91% of dwellings |
| Owner-Occupied | 45% |
| Built Before 2000 | 52% |
| Avg. Rooms per Home | 5.1 |
| Elevation | 36 metres |
| Eircode Area | F92 |
| Dist. to Letterkenny | 8.8 km |
| Location | Inland |
| Coordinates | 55.0305°N, 7.7792°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Malin Head, 47.1 km).
Weather & Climate in Kilmacrennan
Weather data from Met Eireann (Malin Head station, 47.1 km from Kilmacrennan). 5-year average (2019–2023).
Solar Suitability in Kilmacrennan
91% of dwellings in Kilmacrennan are houses or bungalows, making the area highly suited for rooftop solar panels. 45% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 52% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
About Solar Energy in Kilmacrennan
Kilmacrennan is a small town in Co. Donegal with a population of 888 (CSO Census 2022). It is conveniently close to Letterkenny (8.8 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Kilmacrennan is F92. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Kilmacrennan has 338 households, of which 91% are houses or bungalows — well suited for rooftop solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 2,868 kWh per year (717 kWh/kWp). The area has moderate rainfall (1191 mm/yr), with a mean temperature of 10.3°C.
Benefits of Solar Panels in Kilmacrennan
Save on Electricity Bills
Homeowners in Kilmacrennan can save an estimated €860+ 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.
Increase Property Value
Solar panels improve your BER rating and can add up to 4% to your property value.
25+ Year Lifespan
A system installed in Kilmacrennan today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Kilmacrennan
Homeowners in Kilmacrennan, 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 Kilmacrennan
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Solar coverage near Kilmacrennan
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What Kilmacrennan homeowners ask about solar
How much do solar panels cost in Kilmacrennan?
A 4kWp system in Kilmacrennan 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 solar panels increase property value in Kilmacrennan?
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 Kilmacrennan is a long-term investment in your property.
What is the difference between solar PV and solar thermal?
Solar PV panels generate electricity from sunlight. Solar thermal panels heat water directly. For most Irish homes, solar PV is the better investment: it's more versatile, qualifies for the SEAI grant, and you can sell excess electricity. Solar thermal only heats water.
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.
How much electricity will solar panels generate in Kilmacrennan?
Based on Donegal county data, a 4kWp system in Kilmacrennan 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.
What size solar system do I need for my home in Kilmacrennan?
Most homes in Kilmacrennan benefit from a 3-6 kWp system. A 4kWp system (10 panels) covers 68% of average household electricity use. Your installer will assess your roof space, orientation, and energy usage to recommend the optimal size.
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
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