Solar Panels in Rathcoffey, Co. Kildare
Rathcoffey is a village in Co. Kildare with a population of around 371. Located 13.2 km from Naas, the area has a solar yield of 775 kWh/kWp. A 4kWp solar system generates approximately 3,100 kWh annually, saving an estimated €930+ 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 Rathcoffey?
| Solar Metric | Value |
|---|---|
| Solar Yield | 775 kWh/kWp |
| 4kWp System Output | 3,100 kWh/yr |
| Sunshine Hours | 1,514 hrs/yr |
| Est. Annual Savings | €930+ |
| Household Coverage | 74% of avg use |
Solar yield calculated for Rathcoffey (53.33°N, 6.68°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Rathcoffey
kWh per month (4kWp system)
Rathcoffey at a Glance
| Area Data | Value |
|---|---|
| Population | 371 (Census 2022) |
| Households | 112 |
| Houses/Bungalows | 97% of dwellings |
| Owner-Occupied | 63% |
| Built Before 2000 | 75% |
| Avg. Rooms per Home | 6 |
| Elevation | 73 metres |
| Eircode Area | W23 |
| Dist. to Naas | 13.2 km |
| Location | Inland |
| Coordinates | 53.3343°N, 6.6790°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Casement Aerodrome, 16.2 km).
Weather & Climate in Rathcoffey
Weather data from Met Eireann (Casement Aerodrome station, 16.2 km from Rathcoffey). 5-year average (2019–2023).
Solar Suitability in Rathcoffey
97% of dwellings in Rathcoffey are houses or bungalows, making the area highly suited for rooftop solar panels. 63% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 75% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
About Solar Energy in Rathcoffey
Rathcoffey is a village in Co. Kildare with a population of 371 (CSO Census 2022). It is a short drive from Naas (13.2 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Rathcoffey is W23. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Rathcoffey has 112 households, of which 97% are houses or bungalows — well suited for rooftop solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 3,100 kWh per year (775 kWh/kWp). The area has relatively low rainfall (804 mm/yr), with a mean temperature of 10.2°C.
Benefits of Solar Panels in Rathcoffey
Save on Electricity Bills
Homeowners in Rathcoffey can save an estimated €930+ 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 Rathcoffey today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Rathcoffey
Homeowners in Rathcoffey, 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.
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What Rathcoffey homeowners ask about solar
How much do solar panels cost in Rathcoffey?
A 4kWp system in Rathcoffey 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 roof direction is best for solar panels in Rathcoffey?
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 size solar system do I need for my home in Rathcoffey?
Most homes in Rathcoffey 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.
What is the Microgeneration Support Scheme?
The Microgeneration Support Scheme allows homeowners to sell surplus solar electricity back to the grid at 15-25c/kWh. You need a smart meter (free from ESB Networks) and a grid-connected system. The first €400/year of export income is tax-free.
Are solar panels worth it in Rathcoffey?
Yes. With estimated savings of €930+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Rathcoffey pays for itself in 4-6 years and lasts 25+ years.
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.
Do solar panels increase property value in Rathcoffey?
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 Rathcoffey is a long-term investment in your property.
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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