Solar Panels in Castleblayney, Co. Monaghan
Castleblayney, Co. Monaghan, has a solar yield of 756 kWh/kWp (ideal conditions for solar energy). A 4kWp system generates approximately 3,024 kWh annually, covering 72% of average household electricity use and saving an estimated €907+ 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.
Castleblayney solar yield and performance data
| Solar Metric | Value |
|---|---|
| Solar Yield | 756 kWh/kWp |
| 4kWp System Output | 3,024 kWh/yr |
| Sunshine Hours | 1,200 hrs/yr |
| Est. Annual Savings | €907+ |
| Household Coverage | 72% of avg use |
Solar yield calculated for Castleblayney (54.12°N, 6.74°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Castleblayney
kWh per month (4kWp system)
Castleblayney at a Glance
| Area Data | Value |
|---|---|
| Population | 3,926 (Census 2022) |
| Households | 1,554 |
| Houses/Bungalows | 86% of dwellings |
| Owner-Occupied | 46% |
| Built Before 2000 | 56% |
| Avg. Rooms per Home | 5 |
| Elevation | 106 metres |
| Eircode Area | A75 |
| Dist. to Monaghan | 20.8 km |
| Location | Inland |
| Coordinates | 54.1201°N, 6.7389°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Ballyhaise, 38 km).
Weather & Climate in Castleblayney
Weather data from Met Eireann (Ballyhaise station, 38 km from Castleblayney). 5-year average (2019–2023).
Solar Suitability in Castleblayney
86% of dwellings in Castleblayney are houses or bungalows, making the area highly suited for rooftop solar panels. 46% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 56% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
Going Solar in Castleblayney
Castleblayney is a town in Co. Monaghan with a population of 3,926 (CSO Census 2022). It is a short drive from Monaghan (20.8 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Castleblayney is A75. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Castleblayney has 1,554 households, of which 86% are houses or bungalows — well suited for rooftop solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 3,024 kWh per year (756 kWh/kWp). The area has moderate rainfall (1102 mm/yr), with a mean temperature of 9.9°C.
Solar panel benefits in Castleblayney, Monaghan
Save on Electricity Bills
Homeowners in Castleblayney can save an estimated €907+ per year on electricity with a 4kWp solar system generating 3,364 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.
Increase Property Value
Solar panels improve your BER rating and can add up to 4% to your property value.
25+ Year Lifespan
A system installed in Castleblayney today will generate clean electricity for 25-30 years with minimal maintenance.
Castleblayney SEAI solar PV grant details
Homeowners in Castleblayney, Co. Monaghan 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 Monaghan
SEAI registered solar panel installers covering Monaghan.
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Solar Panel FAQs for Castleblayney
How much do solar panels cost in Castleblayney?
A 4kWp system in Castleblayney 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 3,364 kWh/year, paying for itself in 4-6 years.
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.
What is the difference between solar PV and solar thermal?
Solar PV panels generate electricity from sunlight. Solar thermal panels heat water directly. For most Irish homes, solar PV is the better investment: it's more versatile, qualifies for the SEAI grant, and you can sell excess electricity. Solar thermal only heats water.
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.
What is the Microgeneration Support Scheme?
The Microgeneration Support Scheme allows homeowners to sell surplus solar electricity back to the grid at 15-25c/kWh. You need a smart meter (free from ESB Networks) and a grid-connected system. The first €400/year of export income is tax-free.
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).
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.
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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