Solar Panels in Castlegregory, Co. Kerry
Castlegregory is a village in Co. Kerry with a population of around 370. Located 22.2 km from Killarney, the area has a solar yield of 782 kWh/kWp. A 4kWp solar system generates approximately 3,128 kWh annually, saving an estimated €938+ 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 Castlegregory, Co. Kerry
| Solar Metric | Value |
|---|---|
| Solar Yield | 782 kWh/kWp |
| 4kWp System Output | 3,128 kWh/yr |
| Sunshine Hours | 1,246 hrs/yr |
| Est. Annual Savings | €938+ |
| Household Coverage | 74% of avg use |
Solar yield calculated for Castlegregory (52.26°N, 10.02°W) using PVGIS satellite data. Actual output varies by roof orientation, shading, and system specification.
Monthly Solar Output in Castlegregory
kWh per month (4kWp system)
Castlegregory at a Glance
| Area Data | Value |
|---|---|
| Population | 370 (Census 2022) |
| Households | 158 |
| Houses/Bungalows | 91% of dwellings |
| Owner-Occupied | 66% |
| Built Before 2000 | 50% |
| Avg. Rooms per Home | 5.3 |
| Elevation | 13 metres |
| Eircode Area | V92 |
| Dist. to Killarney | 22.2 km |
| Location | Inland |
| Coordinates | 52.2556°N, 10.0216°W |
Population and housing data: CSO Census 2022. Weather data: Met Eireann (Valentia Observatory, 38.4 km).
Weather & Climate in Castlegregory
Weather data from Met Eireann (Valentia Observatory station, 38.4 km from Castlegregory). 5-year average (2019–2023).
Solar Suitability in Castlegregory
91% of dwellings in Castlegregory are houses or bungalows, making the area highly suited for rooftop solar panels. 66% of homes are owner-occupied — homeowners can apply directly for the SEAI grant. 50% of homes were built before 2000, qualifying for the SEAI solar grant (homes built and occupied before 2021 are eligible).
Castlegregory: Local Solar Energy Profile
Castlegregory is a village in Co. Kerry with a population of 370 (CSO Census 2022). It is a short drive from Killarney (22.2 km), where most SEAI-registered installers in the county are based. The Eircode routing key for Castlegregory is V92. You'll need your full Eircode when applying for the SEAI grant. According to the 2022 Census, Castlegregory has 158 households, of which 91% are houses or bungalows — well suited for rooftop solar panels. Based on satellite data for this location, a 4kWp solar system generates approximately 3,128 kWh per year (782 kWh/kWp). The area has higher rainfall (1763 mm/yr), with a mean temperature of 11.3°C.
How solar panels pay off in Castlegregory
Save on Electricity Bills
Homeowners in Castlegregory can save an estimated €938+ per year on electricity with a 4kWp solar system generating 3,584 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.
Top Solar County in Ireland
Co. Kerry ranks #8 in Ireland for solar yield with 896 kWh/kWp. Homes in Castlegregory benefit from some of the best solar conditions in the country.
25+ Year Lifespan
A system installed in Castlegregory today will generate clean electricity for 25-30 years with minimal maintenance.
What SEAI grants can Castlegregory homeowners claim?
Homeowners in Castlegregory, Co. Kerry 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 Kerry
SEAI registered solar panel installers covering Kerry.
Top Rated Solar Installers Near Castlegregory
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Solar Panels in Areas Near Castlegregory
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Common Questions About Going Solar in Castlegregory
How much do solar panels cost in Castlegregory?
A 4kWp system in Castlegregory 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 3,584 kWh/year, paying for itself in 4-6 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.
What size solar system do I need for my home in Castlegregory?
Most homes in Castlegregory benefit from a 3-6 kWp system. A 4kWp system (10 panels) covers 74% of average household electricity use. Your installer will assess your roof space, orientation, and energy usage to recommend the optimal size.
Do I need to clean my solar panels?
In most cases, rain keeps solar panels clean enough in Ireland. If your panels are near trees or at a low angle, an annual clean may improve output by 2-5%. Never use abrasive materials. A soft brush and water is sufficient.
What happens to my solar panels if I move house in Castlegregory?
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.
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.
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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