Solar Panels in Rahan, Co. Offaly
Located just 8.4 km from Tullamore, Rahan receives 1,240+ sunshine hours per year — ideal conditions for solar energy. A 4kWp system generates approximately 3,524 kWh annually, covering 84% of average household electricity use and saving an estimated €1057+ 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.
What is the solar potential in Rahan?
Solar Yield
4kWp Output
Sunshine
Est. Savings
Household Coverage
Eircode Area
Dist. to Tullamore
Location
Based on county-level solar data for Offaly. Actual output varies by roof orientation, shading, and system specification.
About Solar Energy in Rahan
Rahan is a area near the county town in Co. Offaly. It is conveniently close to Tullamore (8.4 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Rahan is H12 — you'll need your full Eircode when applying for the SEAI grant.
Benefits of Solar Panels in Rahan
Save on Electricity Bills
Homeowners in Rahan can save an estimated €1057+ per year on electricity with a 4kWp solar system generating 3,524 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 Rahan today will generate clean electricity for 25-30 years with minimal maintenance.
Government Support for Solar in Rahan
Homeowners in Rahan, Co. Offaly 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 Offaly
SEAI registered solar panel installers covering Offaly.
Where can you find solar installers near Rahan?
Also serving nearby areas in Offaly:
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Solar Panel FAQs for Rahan
How much do solar panels cost in Rahan?
A 4kWp system in Rahan 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 3,524 kWh/year, paying for itself in 4-6 years.
How much electricity will solar panels generate in Rahan?
Based on Offaly county data, a 4kWp system in Rahan generates approximately 3,524 kWh per year — covering 84% of average household use (4,200 kWh/year). Offaly receives around 1,240 sunshine hours annually.
Are solar panels worth it in Rahan?
Yes. With estimated savings of €1057+ per year, the €1,800 SEAI grant, 0% VAT, and export income of 15-25c/kWh, a solar system in Rahan pays for itself in 4-6 years and lasts 25+ years.
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.
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).
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.
Sources
Last updated: February 2026
Reviewed by the Solar Info editorial team. Editorial policy
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