Solar Panels in Rathfarnham, Co. Dublin
Located just 5.9 km from Dublin, Rathfarnham receives 1,500+ sunshine hours per year — 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 €3,200–€6,200 with payback in 4–6 years.
How much solar energy can you generate in Rathfarnham?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Eircode Area
Dist. to Dublin
Location
Based on county-level solar data for Dublin. Actual output varies by roof orientation, shading, and system specification.
Solar Power in Rathfarnham, Co. Dublin
Rathfarnham is a area near the county town in Co. Dublin. It is conveniently close to Dublin (5.9 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Rathfarnham is D14 — you'll need your full Eircode when applying for the SEAI grant. Co. Dublin ranks #4 in Ireland for solar yield, making Rathfarnham an excellent location for solar panels.
Advantages of Solar Energy for Rathfarnham Homeowners
Save on Electricity Bills
Homeowners in Rathfarnham can save an estimated €1098+ 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 Rathfarnham benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Rathfarnham today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Rathfarnham homeowners claim?
Homeowners in Rathfarnham, 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
SEAI registered solar panel installers covering Dublin.
Solar Panels in Areas Near Rathfarnham
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Common Questions About Going Solar in Rathfarnham
How much do solar panels cost in Rathfarnham?
A 4kWp system in Rathfarnham 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.
How much electricity will solar panels generate in Rathfarnham?
Based on Dublin county data, a 4kWp system in Rathfarnham 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.
Are solar panels worth it in Rathfarnham?
Yes. With estimated savings of €1098+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Rathfarnham pays for itself in 4-6 years and lasts 25+ years.
Do I need a smart meter for solar panels?
You need a smart meter to sell surplus electricity back to the grid. ESB Networks installs smart meters for free. Your installer submits the NC6 form to ESB Networks after installation, which triggers the meter upgrade if needed.
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 happens to my solar panels if I move house in Rathfarnham?
Solar panels stay with the property — they're 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.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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