Solar Panels in Cong, Co. Mayo
Cong is a village in Co. Mayo with a population of around 400. Located 24.6 km from Castlebar, the area has a solar yield of 746 kWh/kWp. A 4kWp solar system generates approximately 2,984 kWh annually, saving an estimated €895+ per year. The SEAI grant of up to €1,800 and 0% VAT bring the net cost to €3,200–€6,200.
Solar energy output for Cong, Co. Mayo
| Solar Metric | Value |
|---|---|
| Solar Yield | 746 kWh/kWp |
| 4kWp System Output | 2,984 kWh/yr |
| Sunshine Hours | 1,105 hrs/yr |
| Est. Annual Savings | €895+ |
| Household Coverage | 71% of avg use |
Solar yield calculated for Cong (53.54°N, 9.29°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Cong
kWh per month (4kWp system)
Cong at a Glance
| Area Data | Value |
|---|---|
| Population | 400 (Census 2022) |
| Elevation | 13 metres |
| Eircode Area | F31 |
| Dist. to Castlebar | 24.6 km |
| Location | Inland |
| Coordinates | 53.5408°N, 9.2859°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Claremorris, 27 km).
Weather & Climate in Cong
Weather data from Met Eireann (Claremorris station, 27 km from Cong). 5-year average (2019–2023).
Cong: Local Solar Energy Profile
Cong is a village in Co. Mayo with a population of 400 (CSO Census 2022). It is a short drive from Castlebar (24.6 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Cong is F31. You'll need your full Eircode when applying for the SEAI grant. Based on satellite data for this location, a 4kWp solar system generates approximately 2,984 kWh per year (746 kWh/kWp). The area has higher rainfall (1376 mm/yr), with a mean temperature of 10°C.
How solar panels pay off in Cong
Save on Electricity Bills
Homeowners in Cong can save an estimated €895+ 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 Cong today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Cong homeowners claim?
Homeowners in Cong, Co. Mayo 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 Mayo
SEAI registered solar panel installers covering Mayo.
Top Rated Solar Installers Near Cong
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Solar Panels in Areas Near Cong
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Common Questions About Going Solar in Cong
How much do solar panels cost in Cong?
A 4kWp system in Cong 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.
Is my roof suitable for solar panels in Cong?
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.
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.
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 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.
What happens to my solar panels if I move house in Cong?
Solar panels stay with the property as 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.
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: March 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
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