Solar Panels in Greenhills, Co. Dublin
Located just 6.5 km from Dublin, Greenhills has a solar yield of 915 kWh/kWp (among the highest in Ireland). A 4kWp system generates approximately 3,660 kWh annually, covering 87% of average household electricity use and saving an estimated €1098+ per year. With the SEAI grant of up to €1,800 and 0% VAT, the net cost is €6,500–€7,200 with payback in 4–6 years.
Solar energy output for Greenhills, Co. Dublin
| Solar Metric | Value |
|---|---|
| Solar Yield | 915 kWh/kWp |
| 4kWp System Output | 3,660 kWh/yr |
| Sunshine Hours | 1,514 hrs/yr |
| Est. Annual Savings | €1098+ |
| Household Coverage | 87% of avg use |
Based on county-level solar data for Dublin. Actual output varies by roof orientation, shading, and system specification.
Greenhills at a Glance
| Area Data | Value |
|---|---|
| Houses/Bungalows (Co. Dublin avg.) | 71% of dwellings |
| Owner-Occupied (Co. Dublin avg.) | 57% |
| Built Before 2000 (Co. Dublin avg.) | 73% |
| Avg. Rooms per Home (Co. Dublin avg.) | 4.8 |
| Elevation | 57 metres |
| Eircode Area | D12 |
| Dist. to Dublin | 6.5 km |
| Location | Inland |
| Coordinates | 53.3126°N, 6.3354°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Casement Aerodrome, 6.9 km).
Weather & Climate in Greenhills
Weather data from Met Eireann (Casement Aerodrome station, 6.9 km from Greenhills). 5-year average (2019–2023).
Solar Suitability in Greenhills
Across Co. Dublin, 71% of dwellings are houses or bungalows, with good potential for rooftop solar installations. 57% 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).
Greenhills: Local Solar Energy Profile
Greenhills is a area near the county town in Co. Dublin. It is conveniently close to Dublin (6.5 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Greenhills is D12. You'll need your full Eircode when applying for the SEAI grant. Across the wider Dublin area, 71% of dwellings are houses or bungalows and 57% are owner-occupied (Census 2022). Homeowners in Greenhills with a south, east, or west-facing roof are well positioned for solar panels. The area receives around 1,500 sunshine hours annually, allowing a 4kWp solar system to generate approximately 3,660 kWh per year. The area has relatively low rainfall (804 mm/yr), with a mean temperature of 10.2°C.
How solar panels pay off in Greenhills
Save on Electricity Bills
Homeowners in Greenhills can save an estimated €1098+ per year on electricity with a 4kWp solar system generating 3,660 kWh annually.
Top Solar County in Ireland
Co. Dublin ranks #4 in Ireland for solar yield with 915 kWh/kWp. Homes in Greenhills benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Greenhills today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Greenhills homeowners claim?
Homeowners in Greenhills, Co. Dublin 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.
375 SEAI-registered solar installers serve Greenhills, Co. Dublin. Compare installers in Dublin or read verified reviews.
Solar Installers Serving Greenhills
SEAI registered solar panel installers covering Greenhills, Co. Dublin.
Encom Energy Ireland Limited
carlow, cavan, clare +23 more
Sun Arc Solar Systems
carlow, cavan, clare +23 more
Tirconnaill Contracts Ltd
carlow, cavan, clare +23 more
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Common Questions About Going Solar in Greenhills
How much do solar panels cost in Greenhills?
A 4.4 kWp system in Greenhills 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 3,660 kWh/year, paying for itself in 4-6 years.
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.
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.
What maintenance do solar panels need?
Solar panels need very little maintenance. Rain keeps them clean in most cases. There are no moving parts. Your inverter may need replacing once in 25 years (10-15 year lifespan). Annual visual checks and occasional cleaning if near trees is all that's needed.
How long do solar panels last?
Modern solar panels are warrantied for 25-30 years and typically last even longer. Panel efficiency degrades by about 0.5% per year, so after 25 years, your panels will still produce around 87% of their original output. Inverters typically last 10-15 years and may need one replacement.
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.
Is my roof suitable for solar panels in Greenhills?
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.
Can you go off-grid with solar in Greenhills?
Fully off-grid setups are rare in Greenhills. 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: August 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
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