Solar Panels in Harold's Cross, Co. Dublin
Located just 2.9 km from Dublin, Harold's Cross 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.
Harold's Cross solar irradiance and generation figures
| 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.
Harold's Cross 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 | 26 metres |
| Eircode Area | D06 |
| Dist. to Dublin | 2.9 km |
| Location | Inland |
| Coordinates | 53.3263°N, 6.2780°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Casement Aerodrome, 10.9 km).
Weather & Climate in Harold's Cross
Weather data from Met Eireann (Casement Aerodrome station, 10.9 km from Harold's Cross). 5-year average (2019–2023).
Solar Suitability in Harold's Cross
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).
Renewable Energy Potential in Harold's Cross
Harold's Cross is a area near the county town in Co. Dublin. It is conveniently close to Dublin (2.9 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Harold's Cross is D06. 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 Harold's Cross 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.
Why Go Solar in Harold's Cross?
Save on Electricity Bills
Homeowners in Harold's Cross 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 Harold's Cross benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Harold's Cross today will generate clean electricity for 25-30 years with minimal maintenance.
SEAI Solar Grant for Harold's Cross Residents
Homeowners in Harold's Cross, 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 Harold's Cross, Co. Dublin. Compare installers in Dublin or read verified reviews.
Solar Installers Serving Harold's Cross
SEAI registered solar panel installers covering Harold's Cross, Co. Dublin.
Renewables Ireland
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Sun Arc Solar Systems
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Harold's Cross solar panel questions answered
How much do solar panels cost in Harold's Cross?
A 4.4 kWp system in Harold's Cross 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 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.
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.
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.
How does shading affect solar panels in Harold's Cross?
Shading from trees, chimneys, or nearby buildings can reduce output significantly. Modern systems use optimisers or microinverters so that shading on one panel doesn't drag down the whole system. Your installer will assess shading during the site survey.
How much electricity will solar panels generate in Harold's Cross?
Based on Dublin county data, a 4kWp system in Harold's Cross generates approximately 3,660 kWh per year, covering 87% of average household use (4,200 kWh/year). Dublin receives around 1,500 sunshine hours annually.
Can you go off-grid with solar in Harold's Cross?
Fully off-grid setups are rare in Harold's Cross. 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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