Solar Panels in Arigna, Co. Roscommon
Arigna is a village in Co. Roscommon with a population of around 400. Located 50.3 km from Roscommon, the area has a solar yield of 729 kWh/kWp. A 4kWp solar system generates approximately 2,916 kWh annually, saving an estimated €875+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Arigna solar yield and performance data
| Solar Metric | Value |
|---|---|
| Solar Yield | 729 kWh/kWp |
| 4kWp System Output | 2,916 kWh/yr |
| Sunshine Hours | 1,200 hrs/yr |
| Est. Annual Savings | €875+ |
| Household Coverage | 69% of avg use |
Solar yield calculated for Arigna (54.08°N, 8.11°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Arigna
kWh per month (4kWp system)
Arigna at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 67 metres |
| Eircode Area | N41 |
| Dist. to Roscommon | 50.3 km |
| Location | Inland |
| Coordinates | 54.0769°N, 8.1077°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Markree, 25.2 km).
Weather & Climate in Arigna
Weather data from Met Eireann (Markree station, 25.2 km from Arigna). 5-year average (2019–2023).
Going Solar in Arigna
Arigna is a village in Co. Roscommon with a population of 400 (CSO Census 2022). It is located away from Roscommon (50.3 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Arigna is N41. 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 2,916 kWh per year (729 kWh/kWp). The area has higher rainfall (1332 mm/yr), with a mean temperature of 9.8°C.
Solar panel benefits in Arigna, Roscommon
Save on Electricity Bills
Homeowners in Arigna can save an estimated €875+ per year on electricity with a 4kWp solar system generating 3,468 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.
Energy Independence
For homes in rural Arigna, 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 Arigna today will generate clean electricity for 25-30 years with minimal maintenance.
Arigna SEAI solar PV grant details
Homeowners in Arigna, Co. Roscommon 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 Roscommon
SEAI registered solar panel installers covering Roscommon.
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Solar Panel FAQs for Arigna
How much do solar panels cost in Arigna?
A 4kWp system in Arigna 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 3,468 kWh/year, paying for itself in 4-6 years.
What is the payback period for solar panels in Arigna?
With a net cost of €3,200-€6,200 after the SEAI grant and savings of €875+ per year plus export income, a typical solar system in Arigna pays for itself in 4-6 years. After payback, you get 20+ years of near-free electricity.
Do solar panels work in winter in Roscommon?
Yes, solar panels generate electricity all year round. While output is lower in winter, Roscommon still receives usable daylight hours even in December. Annual generation figures (3,468 kWh for a 4kWp system) already account for seasonal variation.
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.
What roof direction is best for solar panels in Arigna?
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 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.
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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