Solar Panels in Threemilehouse, Co. Monaghan
Threemilehouse is a village in Co. Monaghan with a population of around 148. Located 6.2 km from Monaghan, the area receives 1,200+ sunshine hours per year. A 4kWp solar system generates approximately 3,364 kWh annually — saving an estimated €1009+ 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 Threemilehouse?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Population
Eircode Area
Dist. to Monaghan
Location
Based on county-level solar data for Monaghan. Actual output varies by roof orientation, shading, and system specification.
About Solar Energy in Threemilehouse
Threemilehouse is a village in Co. Monaghan with a population of 148 (CSO Census 2022). It is conveniently close to Monaghan (6.2 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Threemilehouse is A81 — you'll need your full Eircode when applying for the SEAI grant.
Benefits of Solar Panels in Threemilehouse
Save on Electricity Bills
Homeowners in Threemilehouse can save an estimated €1009+ 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 Threemilehouse today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Threemilehouse
Homeowners in Threemilehouse, 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.
Where can you find solar installers near Threemilehouse?
Also serving nearby areas in Monaghan:
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Solar Panel FAQs for Threemilehouse
How much do solar panels cost in Threemilehouse?
A 4kWp system in Threemilehouse 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.
How much electricity will solar panels generate in Threemilehouse?
Based on Monaghan county data, a 4kWp system in Threemilehouse generates approximately 3,364 kWh per year — covering 80% of average household use (4,200 kWh/year). Monaghan receives around 1,200 sunshine hours annually.
Are solar panels worth it in Threemilehouse?
Yes. With estimated savings of €1009+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Threemilehouse 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.
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).
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.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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