Solar Panels in Annagry, Co. Donegal
Annagry is a village in Co. Donegal with a population of around 400. Located 37.9 km from Letterkenny, the area has a solar yield of 721 kWh/kWp. A 4kWp solar system generates approximately 2,884 kWh annually, saving an estimated €865+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Annagry solar irradiance and generation figures
| Solar Metric | Value |
|---|---|
| Solar Yield | 721 kWh/kWp |
| 4kWp System Output | 2,884 kWh/yr |
| Sunshine Hours | 1,175 hrs/yr |
| Est. Annual Savings | €865+ |
| Household Coverage | 69% of avg use |
Solar yield calculated for Annagry (55.02°N, 8.32°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Annagry
kWh per month (4kWp system)
Annagry at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 2 metres |
| Eircode Area | F92 |
| Dist. to Letterkenny | 37.9 km |
| Location | Inland |
| Coordinates | 55.0217°N, 8.3178°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Finner, 58.9 km).
Weather & Climate in Annagry
Weather data from Met Eireann (Finner station, 58.9 km from Annagry). 5-year average (2019–2023).
Renewable Energy Potential in Annagry
Annagry is a village in Co. Donegal with a population of 400 (CSO Census 2022). It is accessible from Letterkenny (37.9 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Annagry is F92. 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 2,884 kWh per year (721 kWh/kWp). The area has higher rainfall (1246 mm/yr), with a mean temperature of 10.4°C.
Why Go Solar in Annagry?
Save on Electricity Bills
Homeowners in Annagry can save an estimated €865+ 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 Annagry, 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 Annagry today will generate clean electricity for 25-30 years with minimal maintenance.
SEAI Solar Grant for Annagry Residents
Homeowners in Annagry, 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.
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Annagry solar panel questions answered
How much do solar panels cost in Annagry?
A 4kWp system in Annagry 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 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 increase property value in Annagry?
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 Annagry is a long-term investment in your property.
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.
Is my roof suitable for solar panels in Annagry?
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.
What happens to my solar panels if I move house in Annagry?
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.
What maintenance do solar panels need?
Solar panels need very little maintenance. Rain keeps them clean in most cases. There are no moving parts. Your inverter may need replacing once in 25 years (10-15 year lifespan). Annual visual checks and occasional cleaning if near trees is all that's needed.
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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