Solar Panels in Knocknahur, Co. Sligo
This coastal community in Co. Sligo benefits from 1,150+ sunshine hours per year — ideal conditions for solar energy. A 4kWp system generates approximately 3,388 kWh annually, covering 81% of average household electricity use and saving an estimated €1016+ per year. With the SEAI grant of up to €1,800 and 0% VAT, the net cost is €3,200–€6,200 with payback in 4–6 years.
What is the solar potential in Knocknahur?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Eircode Area
Dist. to Sligo
Location
Based on county-level solar data for Sligo. Actual output varies by roof orientation, shading, and system specification.
About Solar Energy in Knocknahur
Knocknahur is a coastal community in Co. Sligo. It is conveniently close to Sligo (5.4 km), where most SEAI-registered installers in the county are based. Knocknahur's coastal position means good exposure to sunlight, though installations should account for higher wind loads and salt air. The Eircode routing key for Knocknahur is F91 — you'll need your full Eircode when applying for the SEAI grant.
Benefits of Solar Panels in Knocknahur
Save on Electricity Bills
Homeowners in Knocknahur can save an estimated €1016+ 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
Knocknahur'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 Knocknahur today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Knocknahur
Homeowners in Knocknahur, 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.
Where can you find solar installers near Knocknahur?
Also serving nearby areas in Sligo:
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Solar Panel FAQs for Knocknahur
How much do solar panels cost in Knocknahur?
A 4kWp system in Knocknahur 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.
How much electricity will solar panels generate in Knocknahur?
Based on Sligo county data, a 4kWp system in Knocknahur generates approximately 3,388 kWh per year — covering 81% of average household use (4,200 kWh/year). Sligo receives around 1,150 sunshine hours annually.
Are solar panels worth it in Knocknahur?
Yes. With estimated savings of €1016+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Knocknahur pays for itself in 4-6 years and lasts 25+ years.
What is the payback period for solar panels in Knocknahur?
With a net cost of €3,200-€6,200 after the SEAI grant and savings of €1016+ per year plus export income, a typical solar system in Knocknahur pays for itself in 4-6 years. After payback, you get 20+ years of near-free electricity.
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.
How does shading affect solar panels in Knocknahur?
Shading from trees, chimneys, or nearby buildings can reduce output significantly. Modern systems use optimisers or microinverters so that shading on one panel doesn't drag down the whole system. Your installer will assess shading during the site survey.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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