Solar Panels in Knockvicar, Co. Roscommon
Knockvicar is a village in Co. Roscommon with a population of around 400. Located 41.4 km from Roscommon, the area has a solar yield of 867 kWh/kWp. A 4kWp solar system generates approximately 3,468 kWh annually, saving an estimated €1040+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €6,500–€7,200.
Solar energy output for Knockvicar, Co. Roscommon
| Solar Metric | Value |
|---|---|
| Solar Yield | 867 kWh/kWp |
| 4kWp System Output | 3,468 kWh/yr |
| Sunshine Hours | 1,200 hrs/yr |
| Est. Annual Savings | €1040+ |
| Household Coverage | 83% of avg use |
Based on county-level solar data for Roscommon. Actual output varies by roof orientation, shading, and system specification.
Knockvicar at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 44 metres |
| Eircode Area | F52 |
| Dist. to Roscommon | 41.4 km |
| Location | Inland |
| Coordinates | 53.9992°N, 8.1945°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Markree, 25.9 km).
Weather & Climate in Knockvicar
Weather data from Met Eireann (Markree station, 25.9 km from Knockvicar). 5-year average (2019–2023).
Knockvicar: Local Solar Energy Profile
Knockvicar is a village in Co. Roscommon with a population of 400 (CSO Census 2022). It is accessible from Roscommon (41.4 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Knockvicar is F52. You'll need your full Eircode when applying for the SEAI grant. The area receives around 1,200 sunshine hours annually, allowing a 4kWp solar system to generate approximately 3,468 kWh per year. The area has higher rainfall (1332 mm/yr), with a mean temperature of 9.8°C.
How solar panels pay off in Knockvicar
Save on Electricity Bills
Homeowners in Knockvicar can save an estimated €1040+ per year on electricity with a 4kWp solar system generating 3,468 kWh annually.
Energy Independence
For homes in rural Knockvicar, solar panels provide energy security and reduced reliance on the grid. Combined with a battery, you can store power for evening use.
25+ Year Lifespan
A system installed in Knockvicar today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Knockvicar homeowners claim?
Homeowners in Knockvicar, Co. Roscommon can claim up to €1,800 from the SEAI solar PV grant (2026). Combined with 0% VAT, the net cost of a 4kWp system is typically€6,500–€7,200.
304 SEAI-registered solar installers serve Knockvicar, Co. Roscommon. Compare installers in Roscommon or read verified reviews.
Solar Installers Serving Knockvicar
SEAI registered solar panel installers covering Knockvicar, Co. Roscommon.
K&T Solar PV Solutions Ltd
carlow, cavan, clare +23 more
Goodship Electrical Contractors
carlow, cavan, clare +23 more
Raymond Carolan Electrical Limited
carlow, cavan, clare +23 more
Top Rated Solar Installers Near Knockvicar
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Common Questions About Going Solar in Knockvicar
How much do solar panels cost in Knockvicar?
A 4.4 kWp system in Knockvicar typically costs €8,300–€9,000 before grants. After the €1,800 SEAI grant and 0% VAT, the net cost is €6,500–€7,200. The system generates approximately 3,468 kWh/year, paying for itself in 4-6 years.
Is my roof suitable for solar panels in Knockvicar?
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.
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 roof direction is best for solar panels in Knockvicar?
South-facing roofs produce the most electricity (100% of potential). South-east and south-west roofs produce around 95%. East or west-facing roofs still produce 80-85%. North-facing roofs are generally not recommended for solar panels in Ireland.
What size solar system do I need for my home in Knockvicar?
Most homes in Knockvicar benefit from a 3-6 kWp system. A 4kWp system (10 panels) covers 83% of average household electricity use. Your installer will assess your roof space, orientation, and energy usage to recommend the optimal size.
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.
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.
Can you go off-grid with solar in Knockvicar?
Fully off-grid setups are rare in Knockvicar. Most homes stay grid-connected and sell surplus back through the Microgeneration Support Scheme. A hybrid inverter with 10-20 kWh of battery storage covers evenings and power cuts, which is what most people searching "off-grid" actually want. A true off-grid system needs a much larger array and battery bank, and you lose the grant-supported export income.
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: September 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
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