Solar Panels in Mayo
County Mayo's Atlantic position means it receives more rainfall than eastern counties, but solar panels still deliver strong returns. At 841 kWh per kWp, a 4kWp system generates approximately 3,364 kWh per year. Mayo saw 835 SEAI installations in 2024 — up an impressive 42% on 2023, the fastest growth rate in Ireland — showing that western counties are rapidly adopting solar.
What is the solar energy potential in Mayo?
Solar Yield
4kWp Output
Sunshine
Rainfall
Household Coverage
National Rank
SEAI Installs
Why Install Solar Panels in Mayo?
Save on Electricity Bills
A 4kWp solar system in Mayo generates approximately 3,364 kWh per year, covering 80% of average household use and saving an estimated €1009+ annually.
SEAI Grant — Up to €1,800
Get up to €1,800 back from SEAI for your solar installation. The grant is available for homes built and occupied before 2021. No means testing — it's property-based.
0% VAT Saves ~€1,000
Since May 2023, residential solar panel installations are zero-rated for VAT. This saves approximately €1,000 on a typical installation compared to the old 13.5% rate.
Earn from Excess Energy
Sell surplus electricity back to the grid at 15-25c/kWh through Ireland's Microgeneration Support Scheme. The first €400/year of export income is tax-free.
Increase Property Value
Solar panels improve your BER rating and can increase your property value by up to 4%. Buyers increasingly look for energy-efficient homes with lower running costs.
25+ Year Lifespan
Modern solar panels last 25-30 years with minimal maintenance. In Mayo, a typical system pays for itself in 4-6 years, leaving 20+ years of near-free electricity.
What SEAI solar grants are available in Mayo?
The Sustainable Energy Authority of Ireland (SEAI) offers grants for homeowners in Mayo to install solar PV panels. The grant was confirmed at €1,800 maximum for 2026. In 2024, 835 homes in Mayo received SEAI solar grants.
| 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 |
Net costs include 0% VAT. Actual costs vary by installer and roof type. All prices are after SEAI grant deduction.
Solar Installers in Mayo
SEAI registered solar panel installers covering Mayo.
Where can you find solar panels in Mayo?
Find solar panel information for 73 towns and villages across Mayo. Click any location for local details.
View all 73 areas in Mayo
Find Solar Installers in Mayo
Browse SEAI-registered solar panel installers covering Mayo. Compare reviews and get quotes.
Frequently Asked Questions About Solar Panels in Mayo
How much do solar panels cost in Mayo?
A typical 4kWp solar panel system in Mayo costs between €5,000-€8,000 before the SEAI grant. After the €1,800 grant and with 0% VAT, the net cost is typically €3,200-€6,200. The system generates approximately 3,364 kWh per year, paying for itself in 4-6 years.
How much electricity will solar panels generate in Mayo?
Mayo receives approximately 1,105 sunshine hours per year, ranking #23 out of 26 counties for solar potential. A standard 4kWp system generates around 3,364 kWh annually — covering 80% of average household electricity consumption (4,200 kWh/year).
Are solar panels worth it in Mayo?
Yes. At 841 kWh per kWp, solar panels in Mayo generate significant returns. With the €1,800 SEAI grant, 0% VAT, and electricity savings of approximately €1009+ per year plus export income, a typical system pays for itself in 4-6 years and lasts 25+ years.
Does Mayo get enough sun for solar panels?
Ireland receives enough solar radiation for panels to work effectively year-round. Mayo gets around 1,105 sunshine hours per year with approximately 1,463mm of annual rainfall. Solar panels also generate electricity on cloudy days — just at reduced output. Germany, which has similar sunshine levels to Ireland, is one of the world's largest solar markets.
How long does solar panel installation take?
Most residential installations are completed in 1-2 days. The full process — from SEAI grant application to completed installation — typically takes 4-8 weeks. You must receive your SEAI Letter of Offer before any work begins.
Do I need planning permission for solar panels?
Most residential installations are exempt from planning permission, provided panels don't project more than 15cm from the roof surface and don't cover more than 50% of total roof area. Listed buildings and conservation areas may require permission.
Can I sell excess electricity back to the grid?
Yes. Under Ireland's Microgeneration Support Scheme, you sell surplus electricity at 15-25c per kWh depending on your supplier. You need a smart meter (ESB Networks installs these for free). The first €400/year of export income is tax-free.
How do I apply for the SEAI solar grant in Mayo?
Apply online at seai.ie. You need an SEAI-registered installer, your MPRN (from your electricity bill), and your Eircode. Do not start work before receiving your Letter of Offer. After installation, a BER assessment is required. The grant is paid directly to your bank account within 4-6 weeks.
Ready to Go Solar in Mayo?
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