Solar Panels in Harold's Cross, Co. Dublin
Harold's Cross is a small town in Co. Dublin with a population of around 500. Located 2.9 km from Dublin, the area has a solar yield of 798 kWh/kWp. A 4kWp solar system generates approximately 3,192 kWh annually, saving an estimated €958+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Harold's Cross solar irradiance and generation figures
| Solar Metric | Value |
|---|---|
| Solar Yield | 798 kWh/kWp |
| 4kWp System Output | 3,192 kWh/yr |
| Sunshine Hours | 1,514 hrs/yr |
| Est. Annual Savings | €958+ |
| Household Coverage | 76% of avg use |
Solar yield calculated for Harold's Cross (53.33°N, 6.28°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Harold's Cross
kWh per month (4kWp system)
Harold's Cross at a Glance
| Area Data | Value |
|---|---|
| Population | 500 (Census 2022) |
| 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 small town in Co. Dublin with a population of 500 (CSO Census 2022). 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. Based on satellite data for this location, a 4kWp solar system generates approximately 3,192 kWh per year (798 kWh/kWp). 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 €958+ per year on electricity with a 4kWp solar system generating 3,660 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. 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 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 Dublin
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Harold's Cross solar panel questions answered
How much do solar panels cost in Harold's Cross?
A 4kWp system in Harold's Cross 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 3,660 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 76% of average household use (4,200 kWh/year). Dublin receives around 1,500 sunshine hours annually.
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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