Solar Panels in Portlaw, Co. Waterford
Portlaw, Co. Waterford, has a solar yield of 818 kWh/kWp (among the highest in Ireland). A 4kWp system generates approximately 3,272 kWh annually, covering 78% of average household electricity use and saving an estimated €982+ 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 Portlaw, Co. Waterford
| Solar Metric | Value |
|---|---|
| Solar Yield | 818 kWh/kWp |
| 4kWp System Output | 3,272 kWh/yr |
| Sunshine Hours | 1,465 hrs/yr |
| Est. Annual Savings | €982+ |
| Household Coverage | 78% of avg use |
Solar yield calculated for Portlaw (52.30°N, 7.34°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Portlaw
kWh per month (4kWp system)
Portlaw at a Glance
| Area Data | Value |
|---|---|
| Population | 1,881 (Census 2022) |
| Houses/Bungalows (Co. Waterford avg.) | 99% of dwellings |
| Owner-Occupied (Co. Waterford avg.) | 66% |
| Built Before 2000 (Co. Waterford avg.) | 58% |
| Avg. Rooms per Home (Co. Waterford avg.) | 5.4 |
| Elevation | 197 metres |
| Eircode Area | E32 |
| Dist. to Waterford | 16.6 km |
| Location | Inland |
| Coordinates | 52.3036°N, 7.3432°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Johnstown Castle, 57.5 km).
Weather & Climate in Portlaw
Weather data from Met Eireann (Johnstown Castle station, 57.5 km from Portlaw). 5-year average (2019–2023).
Solar Suitability in Portlaw
Across Co. Waterford, 99% of dwellings are houses or bungalows, making the area highly suited for rooftop solar panels. 66% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 58% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
Portlaw: Local Solar Energy Profile
Portlaw is a town in Co. Waterford with a population of 1,881 (CSO Census 2022). It is a short drive from Waterford (16.6 km), where most SEAI-registered installers in the county are based. At an elevation of 197 metres, installations in Portlaw should consider potential wind exposure when planning panel mounting. The Eircode routing key for Portlaw is E32. You'll need your full Eircode when applying for the SEAI grant. Across the wider Waterford area, 99% of dwellings are houses or bungalows and 66% are owner-occupied (Census 2022). Homeowners in Portlaw 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 3,272 kWh per year (818 kWh/kWp). The area has moderate rainfall (1114 mm/yr), with a mean temperature of 10.6°C.
How solar panels pay off in Portlaw
Save on Electricity Bills
Homeowners in Portlaw can save an estimated €982+ per year on electricity with a 4kWp solar system generating 3,796 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. Waterford ranks #2 in Ireland for solar yield with 949 kWh/kWp. Homes in Portlaw benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Portlaw today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Portlaw homeowners claim?
Homeowners in Portlaw, Co. Waterford 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 Waterford
SEAI registered solar panel installers covering Waterford.
Top Rated Solar Installers Near Portlaw
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Solar Panels in Areas Near Portlaw
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Common Questions About Going Solar in Portlaw
How much do solar panels cost in Portlaw?
A 4kWp system in Portlaw 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 3,796 kWh/year, paying for itself in 4-6 years.
Can I get solar panels on an east or west facing roof in Portlaw?
Yes. East or west-facing roofs still produce 80-85% of the output of a south-facing roof. Many installers recommend splitting panels across east and west to spread generation throughout the day, which can actually improve self-consumption.
Do I need planning permission for solar panels?
Most residential solar installations are exempt from planning permission, provided panels don't project more than 15cm from the roof and don't cover more than 50% of total roof area.
How long does solar panel installation take?
A typical residential installation takes 1-2 days. This includes scaffolding, mounting the panels, wiring, inverter installation, and connecting to the grid. Your installer handles the ESB Networks notification (NC6 form).
What is a BER assessment and do I need one?
A Building Energy Rating (BER) assessment is required after installing solar panels to claim the SEAI grant. A BER assessor visits your home and rates its energy efficiency from A1 to G. Solar panels typically improve your BER by 1-2 grades. The assessment costs around €150-€200.
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 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.
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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