Solar Panels in Knocklong, Co. Limerick
Knocklong is a village in Co. Limerick with a population of around 229. Located 29.1 km from Limerick, the area has a solar yield of 768 kWh/kWp. A 4kWp solar system generates approximately 3,072 kWh annually, saving an estimated €922+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Knocklong solar yield and performance data
| Solar Metric | Value |
|---|---|
| Solar Yield | 768 kWh/kWp |
| 4kWp System Output | 3,072 kWh/yr |
| Sunshine Hours | 1,281 hrs/yr |
| Est. Annual Savings | €922+ |
| Household Coverage | 73% of avg use |
Solar yield calculated for Knocklong (52.44°N, 8.41°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Knocklong
kWh per month (4kWp system)
Knocklong at a Glance
| Area Data | Value |
|---|---|
| Population | 229 (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 | 110 metres |
| Eircode Area | V35 |
| Dist. to Limerick | 29.1 km |
| Location | Inland |
| Coordinates | 52.4372°N, 8.4107°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Moore Park, 32 km).
Weather & Climate in Knocklong
Weather data from Met Eireann (Moore Park station, 32 km from Knocklong). 5-year average (2019–2023).
Solar Suitability in Knocklong
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).
Going Solar in Knocklong
Knocklong is a village in Co. Limerick with a population of 229 (CSO Census 2022). It is accessible from Limerick (29.1 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Knocklong is V35. 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 Knocklong 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 3,072 kWh per year (768 kWh/kWp). The area has moderate rainfall (1104 mm/yr), with a mean temperature of 10.6°C.
Solar panel benefits in Knocklong, Limerick
Save on Electricity Bills
Homeowners in Knocklong can save an estimated €922+ 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.
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 Knocklong today will generate clean electricity for 25-30 years with minimal maintenance.
Knocklong SEAI solar PV grant details
Homeowners in Knocklong, 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 Knocklong
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Solar Panel FAQs for Knocklong
How much do solar panels cost in Knocklong?
A 4kWp system in Knocklong 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.
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.
What happens during a power cut?
Standard grid-tied solar systems shut down during a power cut for safety reasons (to protect ESB workers). If you need backup power, you can install a hybrid inverter with battery storage that provides power during outages.
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.
Is my roof suitable for solar panels in Knocklong?
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.
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.
What roof direction is best for solar panels in Knocklong?
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.
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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