Solar Panels in Derryharrow, Co. Longford
Located just 3.6 km from Longford, Derryharrow receives 1,285+ sunshine hours per year — ideal conditions for solar energy. A 4kWp system generates approximately 3,416 kWh annually, covering 81% of average household electricity use and saving an estimated €1025+ 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.
How much solar energy can you generate in Derryharrow?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Eircode Area
Dist. to Longford
Location
Based on county-level solar data for Longford. Actual output varies by roof orientation, shading, and system specification.
Solar Power in Derryharrow, Co. Longford
Derryharrow is a area near the county town in Co. Longford. It is conveniently close to Longford (3.6 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Derryharrow is N37 — you'll need your full Eircode when applying for the SEAI grant.
Advantages of Solar Energy for Derryharrow Homeowners
Save on Electricity Bills
Homeowners in Derryharrow can save an estimated €1025+ per year on electricity with a 4kWp solar system generating 3,416 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 Derryharrow today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Derryharrow homeowners claim?
Homeowners in Derryharrow, Co. Longford 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 Longford
SEAI registered solar panel installers covering Longford.
Solar Panels in Areas Near Derryharrow
Also serving nearby areas in Longford:
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Common Questions About Going Solar in Derryharrow
How much do solar panels cost in Derryharrow?
A 4kWp system in Derryharrow 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 3,416 kWh/year, paying for itself in 4-6 years.
How much electricity will solar panels generate in Derryharrow?
Based on Longford county data, a 4kWp system in Derryharrow generates approximately 3,416 kWh per year — covering 81% of average household use (4,200 kWh/year). Longford receives around 1,285 sunshine hours annually.
Are solar panels worth it in Derryharrow?
Yes. With estimated savings of €1025+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Derryharrow pays for itself in 4-6 years and lasts 25+ years.
What happens to my solar panels if I move house in Derryharrow?
Solar panels stay with the property — they're a permanent fixture. They add value to your home for the next buyer. The SEAI grant does not need to be repaid if you sell. Your installer can transfer monitoring accounts to the new owner.
What size solar system do I need for my home in Derryharrow?
Most homes in Derryharrow 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.
How does shading affect solar panels in Derryharrow?
Shading from trees, chimneys, or nearby buildings can reduce output significantly. Modern systems use optimisers or microinverters so that shading on one panel doesn't drag down the whole system. Your installer will assess shading during the site survey.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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