Solar Panels in Knockaderry, Co. Limerick
Knockaderry is a village in Co. Limerick with a population of around 400. Located 31.7 km from Limerick, the area has a solar yield of 780 kWh/kWp. A 4kWp solar system generates approximately 3,120 kWh annually, saving an estimated €936+ 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 Knockaderry?
| Solar Metric | Value |
|---|---|
| Solar Yield | 780 kWh/kWp |
| 4kWp System Output | 3,120 kWh/yr |
| Sunshine Hours | 1,426 hrs/yr |
| Est. Annual Savings | €936+ |
| Household Coverage | 74% of avg use |
Solar yield calculated for Knockaderry (52.47°N, 8.96°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Knockaderry
kWh per month (4kWp system)
Knockaderry at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Houses/Bungalows (Co. Limerick avg.) | 79% of dwellings |
| Owner-Occupied (Co. Limerick avg.) | 53% |
| Built Before 2000 (Co. Limerick avg.) | 70% |
| Avg. Rooms per Home (Co. Limerick avg.) | 5.1 |
| Elevation | 104 metres |
| Eircode Area | V42 |
| Dist. to Limerick | 31.7 km |
| Location | Inland |
| Coordinates | 52.4655°N, 8.9627°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Shannon Airport, 25.1 km).
Weather & Climate in Knockaderry
Weather data from Met Eireann (Shannon Airport station, 25.1 km from Knockaderry). 5-year average (2019–2023).
Solar Suitability in Knockaderry
Across Co. Limerick, 79% of dwellings are houses or bungalows, with good potential for rooftop solar installations. 53% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 70% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
About Solar Energy in Knockaderry
Knockaderry is a village in Co. Limerick with a population of 400 (CSO Census 2022). It is accessible from Limerick (31.7 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Knockaderry is V42. You'll need your full Eircode when applying for the SEAI grant. Across the wider Limerick area, 79% of dwellings are houses or bungalows and 53% are owner-occupied (Census 2022). Homeowners in Knockaderry with a south, east, or west-facing roof are well positioned for solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 3,120 kWh per year (780 kWh/kWp). The area has moderate rainfall (1078 mm/yr), with a mean temperature of 11°C.
Benefits of Solar Panels in Knockaderry
Save on Electricity Bills
Homeowners in Knockaderry can save an estimated €936+ per year on electricity with a 4kWp solar system generating 3,476 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 Knockaderry, 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 Knockaderry today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Knockaderry
Homeowners in Knockaderry, Co. Limerick 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 Limerick
SEAI registered solar panel installers covering Limerick.
Top Rated Solar Installers Near Knockaderry
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Solar coverage near Knockaderry
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What Knockaderry homeowners ask about solar
How much do solar panels cost in Knockaderry?
A 4kWp system in Knockaderry 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 3,476 kWh/year, paying for itself in 4-6 years.
What roof direction is best for solar panels in Knockaderry?
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.
What is the payback period for solar panels in Knockaderry?
With a net cost of €3,200-€6,200 after the SEAI grant and savings of €936+ per year plus export income, a typical solar system in Knockaderry pays for itself in 4-6 years. After payback, you get 20+ years of near-free electricity.
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.
What size solar system do I need for my home in Knockaderry?
Most homes in Knockaderry benefit from a 3-6 kWp system. A 4kWp system (10 panels) covers 74% of average household electricity use. Your installer will assess your roof space, orientation, and energy usage to recommend the optimal size.
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.
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.
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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