Solar Panels in Tallaght, Co. Dublin
Tallaght is a small town in Co. Dublin with a population of around 500. Located 9.7 km from Dublin, the area has a solar yield of 735 kWh/kWp. A 4kWp solar system generates approximately 2,940 kWh annually, saving an estimated €882+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
How productive are solar panels in Tallaght?
| Solar Metric | Value |
|---|---|
| Solar Yield | 735 kWh/kWp |
| 4kWp System Output | 2,940 kWh/yr |
| Sunshine Hours | 1,514 hrs/yr |
| Est. Annual Savings | €882+ |
| Household Coverage | 70% of avg use |
Solar yield calculated for Tallaght (53.29°N, 6.36°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Tallaght
kWh per month (4kWp system)
Tallaght 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 | 99 metres |
| Eircode Area | D24 |
| Dist. to Dublin | 9.7 km |
| Location | Inland |
| Coordinates | 53.2878°N, 6.3624°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Casement Aerodrome, 5.5 km).
Weather & Climate in Tallaght
Weather data from Met Eireann (Casement Aerodrome station, 5.5 km from Tallaght). 5-year average (2019–2023).
Solar Suitability in Tallaght
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).
About Solar Energy in Tallaght
Tallaght is a small town in Co. Dublin with a population of 500 (CSO Census 2022). It is conveniently close to Dublin (9.7 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Tallaght is D24. 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 Tallaght 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 2,940 kWh per year (735 kWh/kWp). The area has relatively low rainfall (804 mm/yr), with a mean temperature of 10.2°C.
Benefits of Solar Panels in Tallaght
Save on Electricity Bills
Homeowners in Tallaght can save an estimated €882+ 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 Tallaght benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Tallaght today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Tallaght
Homeowners in Tallaght, 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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What Tallaght homeowners ask about solar
How much do solar panels cost in Tallaght?
A 4kWp system in Tallaght 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.
Do solar panels increase property value in Tallaght?
Yes. Solar panels improve your BER rating and can increase property value by up to 4%. Buyers increasingly look for energy-efficient homes with lower running costs. A solar system in Tallaght is a long-term investment in your property.
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.
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.
Is my roof suitable for solar panels in Tallaght?
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 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.
How much electricity will solar panels generate in Tallaght?
Based on Dublin county data, a 4kWp system in Tallaght generates approximately 3,660 kWh per year, covering 70% 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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