Solar Panels in Rosenallis, Co. Laois
Rosenallis is a village in Co. Laois with a population of around 400. Located 14.6 km from Portlaoise, the area has a solar yield of 774 kWh/kWp. A 4kWp solar system generates approximately 3,096 kWh annually, saving an estimated €929+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
What is the solar potential in Rosenallis?
| Solar Metric | Value |
|---|---|
| Solar Yield | 774 kWh/kWp |
| 4kWp System Output | 3,096 kWh/yr |
| Sunshine Hours | 1,278 hrs/yr |
| Est. Annual Savings | €929+ |
| Household Coverage | 74% of avg use |
Solar yield calculated for Rosenallis (53.14°N, 7.41°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Rosenallis
kWh per month (4kWp system)
Rosenallis at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 122 metres |
| Eircode Area | R32 |
| Dist. to Portlaoise | 14.6 km |
| Location | Inland |
| Coordinates | 53.1358°N, 7.4066°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Gurteen, 41.8 km).
Weather & Climate in Rosenallis
Weather data from Met Eireann (Gurteen station, 41.8 km from Rosenallis). 5-year average (2019–2023).
Solar Power in Rosenallis, Co. Laois
Rosenallis is a village in Co. Laois with a population of 400 (CSO Census 2022). It is a short drive from Portlaoise (14.6 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Rosenallis is R32. You'll need your full Eircode when applying for the SEAI grant. Based on satellite data for this location, a 4kWp solar system generates approximately 3,096 kWh per year (774 kWh/kWp). The area has moderate rainfall (948 mm/yr), with a mean temperature of 10.1°C.
Advantages of Solar Energy for Rosenallis Homeowners
Save on Electricity Bills
Homeowners in Rosenallis can save an estimated €929+ per year on electricity with a 4kWp solar system generating 3,552 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. Laois ranks #10 in Ireland for solar yield with 888 kWh/kWp. Homes in Rosenallis benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Rosenallis today will generate clean electricity for 25-30 years with minimal maintenance.
Solar grants available in Rosenallis
Homeowners in Rosenallis, Co. Laois 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 Laois
SEAI registered solar panel installers covering Laois.
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Your solar questions for Rosenallis
How much do solar panels cost in Rosenallis?
A 4kWp system in Rosenallis 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 3,552 kWh/year, paying for itself in 4-6 years.
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 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 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.
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.
Are solar panels worth it in Rosenallis?
Yes. With estimated savings of €929+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Rosenallis pays for itself in 4-6 years and lasts 25+ 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.
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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