Solar Panels in Tarmonbarry, Co. Longford
Tarmonbarry is a small town in Co. Longford with a population of around 500. Located 8.4 km from Longford, the area has a solar yield of 854 kWh/kWp. A 4kWp solar system generates approximately 3,416 kWh annually, saving an estimated €1025+ 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 Tarmonbarry, Co. Longford
| Solar Metric | Value |
|---|---|
| Solar Yield | 854 kWh/kWp |
| 4kWp System Output | 3,416 kWh/yr |
| Sunshine Hours | 1,285 hrs/yr |
| Est. Annual Savings | €1025+ |
| Household Coverage | 81% of avg use |
Based on county-level solar data for Longford. Actual output varies by roof orientation, shading, and system specification.
Tarmonbarry at a Glance
| Area Data | Value |
|---|---|
| Population | 500 (Census 2022) |
| Elevation | 40 metres |
| Eircode Area | N39 |
| Dist. to Longford | 8.4 km |
| Location | Inland |
| Coordinates | 53.7426°N, 7.9188°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Mt Dillon, 4.4 km).
Weather & Climate in Tarmonbarry
Weather data from Met Eireann (Mt Dillon station, 4.4 km from Tarmonbarry). 5-year average (2019–2023).
Tarmonbarry: Local Solar Energy Profile
Tarmonbarry is a small town in Co. Longford with a population of 500 (CSO Census 2022). It is conveniently close to Longford (8.4 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Tarmonbarry is N39. You'll need your full Eircode when applying for the SEAI grant. The area receives around 1,285 sunshine hours annually, allowing a 4kWp solar system to generate approximately 3,416 kWh per year. The area has moderate rainfall (1171 mm/yr), with a mean temperature of 9.9°C.
How solar panels pay off in Tarmonbarry
Save on Electricity Bills
Homeowners in Tarmonbarry can save an estimated €1025+ per year on electricity with a 4kWp solar system generating 3,416 kWh annually.
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 Tarmonbarry today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Tarmonbarry homeowners claim?
Homeowners in Tarmonbarry, Co. Longford 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.
302 SEAI-registered solar installers serve Tarmonbarry, Co. Longford. Compare installers in Longford or read verified reviews.
Solar Installers Serving Tarmonbarry
SEAI registered solar panel installers covering Tarmonbarry, Co. Longford.
Grid Solar Limited
carlow, cavan, clare +23 more
Wattmasters Electrical Ltd
carlow, cavan, clare +23 more
Top Rated Solar Installers Near Tarmonbarry
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Common Questions About Going Solar in Tarmonbarry
How much do solar panels cost in Tarmonbarry?
A 4.4 kWp system in Tarmonbarry 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 3,416 kWh/year, paying for itself in 4-6 years.
Is my roof suitable for solar panels in Tarmonbarry?
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.
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 size solar system do I need for my home in Tarmonbarry?
Most homes in Tarmonbarry benefit from a 3-6 kWp system. A 4kWp system (10 panels) covers 81% of average household electricity use. Your installer will assess your roof space, orientation, and energy usage to recommend the optimal size.
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.
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.
Do solar panels work in winter in Longford?
Yes, solar panels generate electricity all year round. While output is lower in winter, Longford still receives usable daylight hours even in December. Annual generation figures (3,416 kWh for a 4kWp system) already account for seasonal variation.
Can you go off-grid with solar in Tarmonbarry?
Fully off-grid setups are rare in Tarmonbarry. 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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