Solar Panels in Carnew, Co. Wicklow
Carnew is a small town in Co. Wicklow with a population of around 1,233. Located 42.8 km from Wicklow Town, the area has a solar yield of 947 kWh/kWp. A 4kWp solar system generates approximately 3,788 kWh annually, saving an estimated €1136+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €6,500–€7,200.
What is the solar potential in Carnew?
| Solar Metric | Value |
|---|---|
| Solar Yield | 947 kWh/kWp |
| 4kWp System Output | 3,788 kWh/yr |
| Sunshine Hours | 1,448 hrs/yr |
| Est. Annual Savings | €1136+ |
| Household Coverage | 90% of avg use |
Based on county-level solar data for Wicklow. Actual output varies by roof orientation, shading, and system specification.
Carnew at a Glance
| Area Data | Value |
|---|---|
| Population | 1,233 (Census 2022) |
| Households | 477 |
| Houses/Bungalows | 95% of dwellings |
| Owner-Occupied | 49% |
| Built Before 2000 | 58% |
| Avg. Rooms per Home | 5.1 |
| Elevation | 109 metres |
| Eircode Area | Y25 |
| Dist. to Wicklow Town | 42.8 km |
| Location | Inland |
| Coordinates | 52.7096°N, 6.4963°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Oak Park, 32.8 km).
Weather & Climate in Carnew
Weather data from Met Eireann (Oak Park station, 32.8 km from Carnew). 5-year average (2019–2023).
Solar Suitability in Carnew
95% of dwellings in Carnew are houses or bungalows, making the area highly suited for rooftop solar panels. 49% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 58% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
Solar Power in Carnew, Co. Wicklow
Carnew is a small town in Co. Wicklow with a population of 1,233 (CSO Census 2022). It is accessible from Wicklow Town (42.8 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Carnew is Y25. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Carnew has 477 households, of which 95% are houses or bungalows — well suited for rooftop solar panels. The area receives around 1,448 sunshine hours annually, allowing a 4kWp solar system to generate approximately 3,788 kWh per year. The area has relatively low rainfall (867 mm/yr), with a mean temperature of 10.5°C.
Advantages of Solar Energy for Carnew Homeowners
Save on Electricity Bills
Homeowners in Carnew can save an estimated €1136+ per year on electricity with a 4kWp solar system generating 3,788 kWh annually.
Top Solar County in Ireland
Co. Wicklow ranks #3 in Ireland for solar yield with 947 kWh/kWp. Homes in Carnew benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Carnew today will generate clean electricity for 25-30 years with minimal maintenance.
Solar grants available in Carnew
Homeowners in Carnew, Co. Wicklow can claim up to €1,800 from the SEAI solar PV grant (2026). Combined with 0% VAT, the net cost of a 4kWp system is typically€6,500–€7,200.
327 SEAI-registered solar installers serve Carnew, Co. Wicklow. Compare installers in Wicklow or read verified reviews.
Solar Installers Serving Carnew
SEAI registered solar panel installers covering Carnew, Co. Wicklow.
Rend Master Ltd
carlow, cavan, clare +23 more
Claddagh Electrics Limited
carlow, cavan, clare +23 more
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Your solar questions for Carnew
How much do solar panels cost in Carnew?
A 4.4 kWp system in Carnew typically costs €8,300–€9,000 before grants. After the €1,800 SEAI grant and 0% VAT, the net cost is €6,500–€7,200. The system generates approximately 3,788 kWh/year, paying for itself in 4-6 years.
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.
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.
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.
Do solar panels work in winter in Wicklow?
Yes, solar panels generate electricity all year round. While output is lower in winter, Wicklow still receives usable daylight hours even in December. Annual generation figures (3,788 kWh for a 4kWp system) already account for seasonal variation.
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 to my solar panels if I move house in Carnew?
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.
Can you go off-grid with solar in Carnew?
Fully off-grid setups are rare in Carnew. Most homes stay grid-connected and sell surplus back through the Microgeneration Support Scheme. A hybrid inverter with 10-20 kWh of battery storage covers evenings and power cuts, which is what most people searching "off-grid" actually want. A true off-grid system needs a much larger array and battery bank, and you lose the grant-supported export income.
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: September 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
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