Solar Panels in Knocknarea, Co. Sligo
Knocknarea is a coastal small town in Co. Sligo with a population of around 500. Located 6.7 km from Sligo, the area has a solar yield of 733 kWh/kWp. A 4kWp solar system generates approximately 2,932 kWh annually, saving an estimated €880+ 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 Knocknarea?
| Solar Metric | Value |
|---|---|
| Solar Yield | 733 kWh/kWp |
| 4kWp System Output | 2,932 kWh/yr |
| Sunshine Hours | 1,150 hrs/yr |
| Est. Annual Savings | €880+ |
| Household Coverage | 70% of avg use |
Solar yield calculated for Knocknarea (54.26°N, 8.57°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Knocknarea
kWh per month (4kWp system)
Knocknarea at a Glance
| Area Data | Value |
|---|---|
| Population | 500 (Census 2022) |
| Elevation | 313 metres |
| Eircode Area | F91 |
| Dist. to Sligo | 6.7 km |
| Location | Coastal |
| Coordinates | 54.2588°N, 8.5745°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Markree, 12.1 km).
Weather & Climate in Knocknarea
Weather data from Met Eireann (Markree station, 12.1 km from Knocknarea). 5-year average (2019–2023).
Knocknarea and Renewable Energy
Knocknarea is a small town in Co. Sligo with a population of 500 (CSO Census 2022). It is conveniently close to Sligo (6.7 km), where most SEAI-registered installers in the county are based. Knocknarea's coastal position means good exposure to sunlight, though installations should account for higher wind loads and salt air. The Eircode routing key for Knocknarea is F91. 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 2,932 kWh per year (733 kWh/kWp). The area has higher rainfall (1332 mm/yr), with a mean temperature of 9.8°C.
What Knocknarea homeowners gain from solar
Save on Electricity Bills
Homeowners in Knocknarea can save an estimated €880+ per year on electricity with a 4kWp solar system generating 3,388 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.
Coastal Location Advantage
Knocknarea's coastal position often means fewer obstructions and clearer horizons for solar exposure. Modern panels are designed to withstand coastal conditions including salt air.
25+ Year Lifespan
A system installed in Knocknarea today will generate clean electricity for 25-30 years with minimal maintenance.
How to claim the SEAI grant in Knocknarea
Homeowners in Knocknarea, Co. Sligo 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 Sligo
SEAI registered solar panel installers covering Sligo.
Top Rated Solar Installers Near Knocknarea
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Frequently Asked Questions About Solar Panels in Knocknarea
How much do solar panels cost in Knocknarea?
A 4kWp system in Knocknarea 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 3,388 kWh/year, paying for itself in 4-6 years.
Do solar panels work in winter in Sligo?
Yes, solar panels generate electricity all year round. While output is lower in winter, Sligo still receives usable daylight hours even in December. Annual generation figures (3,388 kWh for a 4kWp system) already account for seasonal variation.
What is a BER assessment and do I need one?
A Building Energy Rating (BER) assessment is required after installing solar panels to claim the SEAI grant. A BER assessor visits your home and rates its energy efficiency from A1 to G. Solar panels typically improve your BER by 1-2 grades. The assessment costs around €150-€200.
Do solar panels increase property value in Knocknarea?
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 Knocknarea is a long-term investment in your property.
What roof direction is best for solar panels in Knocknarea?
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.
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 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.
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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