Solar Panels in Rathdrum, Co. Wicklow
Located just 13.4 km from Wicklow Town, Rathdrum has a solar yield of 824 kWh/kWp (among the highest in Ireland). A 4kWp system generates approximately 3,296 kWh annually, covering 78% of average household electricity use and saving an estimated €989+ per year. With the SEAI grant of up to €1,800 and 0% VAT, the net cost is €3,200–€6,200 with payback in 4–6 years.
Solar energy output for Rathdrum, Co. Wicklow
| Solar Metric | Value |
|---|---|
| Solar Yield | 824 kWh/kWp |
| 4kWp System Output | 3,296 kWh/yr |
| Sunshine Hours | 1,514 hrs/yr |
| Est. Annual Savings | €989+ |
| Household Coverage | 78% of avg use |
Solar yield calculated for Rathdrum (52.93°N, 6.23°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Rathdrum
kWh per month (4kWp system)
Rathdrum at a Glance
| Area Data | Value |
|---|---|
| Population | 2,264 (Census 2022) |
| Households | 790 |
| Houses/Bungalows | 92% of dwellings |
| Owner-Occupied | 60% |
| Built Before 2000 | 52% |
| Avg. Rooms per Home | 5.2 |
| Elevation | 97 metres |
| Eircode Area | A67 |
| Dist. to Wicklow Town | 13.4 km |
| Location | Inland |
| Coordinates | 52.9305°N, 6.2261°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Casement Aerodrome, 44.1 km).
Weather & Climate in Rathdrum
Weather data from Met Eireann (Casement Aerodrome station, 44.1 km from Rathdrum). 5-year average (2019–2023).
Solar Suitability in Rathdrum
92% of dwellings in Rathdrum are houses or bungalows, making the area highly suited for rooftop solar panels. 60% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 52% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
Rathdrum: Local Solar Energy Profile
Rathdrum is a town in Co. Wicklow with a population of 2,264 (CSO Census 2022). It is a short drive from Wicklow Town (13.4 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Rathdrum is A67. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Rathdrum has 790 households, of which 92% are houses or bungalows — well suited for rooftop solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 3,296 kWh per year (824 kWh/kWp). The area has relatively low rainfall (804 mm/yr), with a mean temperature of 10.2°C.
How solar panels pay off in Rathdrum
Save on Electricity Bills
Homeowners in Rathdrum can save an estimated €989+ per year on electricity with a 4kWp solar system generating 3,788 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. Wicklow ranks #3 in Ireland for solar yield with 947 kWh/kWp. Homes in Rathdrum benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Rathdrum today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Rathdrum homeowners claim?
Homeowners in Rathdrum, Co. Wicklow 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 Wicklow
SEAI registered solar panel installers covering Wicklow.
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Solar Panels in Areas Near Rathdrum
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Common Questions About Going Solar in Rathdrum
How much do solar panels cost in Rathdrum?
A 4kWp system in Rathdrum 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 3,788 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.
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.
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 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.
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.
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.
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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