Solar Panels in Leixlip, Co. Kildare
Leixlip is one of the larger towns in Co. Kildare with a population of 16,183. With a solar yield of 795 kWh/kWp and 1,514+ sunshine hours per year, solar energy is a strong investment for homeowners here. A typical 4kWp system generates approximately 3,180 kWh annually, covering 76% of average household electricity use. After 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.
How much solar energy can you generate in Leixlip?
| Solar Metric | Value |
|---|---|
| Solar Yield | 795 kWh/kWp |
| 4kWp System Output | 3,180 kWh/yr |
| Sunshine Hours | 1,514 hrs/yr |
| Est. Annual Savings | €954+ |
| Household Coverage | 76% of avg use |
Solar yield calculated for Leixlip (53.36°N, 6.49°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Leixlip
kWh per month (4kWp system)
Leixlip at a Glance
| Area Data | Value |
|---|---|
| Population | 16,183 (Census 2022) |
| Households | 5,715 |
| Houses/Bungalows | 92% of dwellings |
| Owner-Occupied | 77% |
| Built Before 2000 | 73% |
| Avg. Rooms per Home | 5.8 |
| Elevation | 28 metres |
| Eircode Area | K78 |
| Dist. to Naas | 20.3 km |
| Location | Inland |
| Coordinates | 53.3645°N, 6.4897°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Casement Aerodrome, 7.3 km).
Weather & Climate in Leixlip
Weather data from Met Eireann (Casement Aerodrome station, 7.3 km from Leixlip). 5-year average (2019–2023).
Solar Suitability in Leixlip
92% of dwellings in Leixlip are houses or bungalows, making the area highly suited for rooftop solar panels. 77% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 73% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
Leixlip and Renewable Energy
Leixlip is a large town in Co. Kildare with a population of 16,183 (CSO Census 2022). It is a short drive from Naas (20.3 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Leixlip is K78. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Leixlip has 5,715 households, of which 92% are houses or bungalows — well suited for rooftop solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 3,180 kWh per year (795 kWh/kWp). The area has relatively low rainfall (804 mm/yr), with a mean temperature of 10.2°C.
What Leixlip homeowners gain from solar
Save on Electricity Bills
Homeowners in Leixlip can save an estimated €954+ per year on electricity with a 4kWp solar system generating 3,540 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 Leixlip today will generate clean electricity for 25-30 years with minimal maintenance.
How to claim the SEAI grant in Leixlip
Homeowners in Leixlip, Co. Kildare 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 Kildare
SEAI registered solar panel installers covering Kildare.
Top Rated Solar Installers Near Leixlip
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Frequently Asked Questions About Solar Panels in Leixlip
How much do solar panels cost in Leixlip?
A 4kWp system in Leixlip 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 3,540 kWh/year, paying for itself in 4-6 years.
What happens to my solar panels if I move house in Leixlip?
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.
Do I need to clean my solar panels?
In most cases, rain keeps solar panels clean enough in Ireland. If your panels are near trees or at a low angle, an annual clean may improve output by 2-5%. Never use abrasive materials. A soft brush and water is sufficient.
Can I sell excess solar electricity?
Yes. Under Ireland's Microgeneration Support Scheme, you sell surplus electricity at 15-25c/kWh. You need a smart meter (ESB Networks installs free). The first €400/year of export income is tax-free.
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.
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 Leixlip?
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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