Solar Panels in Old Leighlin, Co. Carlow
Old Leighlin is a village in Co. Carlow with a population of around 400. Located 12.9 km from Carlow Town, the area has a solar yield of 790 kWh/kWp. A 4kWp solar system generates approximately 3,160 kWh annually, saving an estimated €948+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Old Leighlin solar yield and performance data
| Solar Metric | Value |
|---|---|
| Solar Yield | 790 kWh/kWp |
| 4kWp System Output | 3,160 kWh/yr |
| Sunshine Hours | 1,490 hrs/yr |
| Est. Annual Savings | €948+ |
| Household Coverage | 75% of avg use |
Solar yield calculated for Old Leighlin (52.74°N, 7.02°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Old Leighlin
kWh per month (4kWp system)
Old Leighlin at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 85 metres |
| Eircode Area | R21 |
| Dist. to Carlow Town | 12.9 km |
| Location | Inland |
| Coordinates | 52.7364°N, 7.0239°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Oak Park, 15.7 km).
Weather & Climate in Old Leighlin
Weather data from Met Eireann (Oak Park station, 15.7 km from Old Leighlin). 5-year average (2019–2023).
Going Solar in Old Leighlin
Old Leighlin is a village in Co. Carlow with a population of 400 (CSO Census 2022). It is a short drive from Carlow Town (12.9 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Old Leighlin is R21. 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 3,160 kWh per year (790 kWh/kWp). The area has relatively low rainfall (867 mm/yr), with a mean temperature of 10.5°C.
Solar panel benefits in Old Leighlin, Carlow
Save on Electricity Bills
Homeowners in Old Leighlin can save an estimated €948+ per year on electricity with a 4kWp solar system generating 3,644 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.
Top Solar County in Ireland
Co. Carlow ranks #5 in Ireland for solar yield with 911 kWh/kWp. Homes in Old Leighlin benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Old Leighlin today will generate clean electricity for 25-30 years with minimal maintenance.
Old Leighlin SEAI solar PV grant details
Homeowners in Old Leighlin, Co. Carlow 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 Carlow
SEAI registered solar panel installers covering Carlow.
Top Rated Solar Installers Near Old Leighlin
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Solar Panel FAQs for Old Leighlin
How much do solar panels cost in Old Leighlin?
A 4kWp system in Old Leighlin 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 3,644 kWh/year, paying for itself in 4-6 years.
What is the payback period for solar panels in Old Leighlin?
With a net cost of €3,200-€6,200 after the SEAI grant and savings of €948+ per year plus export income, a typical solar system in Old Leighlin pays for itself in 4-6 years. After payback, you get 20+ years of near-free electricity.
Do solar panels work in winter in Carlow?
Yes, solar panels generate electricity all year round. While output is lower in winter, Carlow still receives usable daylight hours even in December. Annual generation figures (3,644 kWh for a 4kWp system) already account for seasonal variation.
Do solar panels increase property value in Old Leighlin?
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 Old Leighlin is a long-term investment in your property.
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.
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.
Is my roof suitable for solar panels in Old Leighlin?
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.
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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