Clonakilty, Munster, Ireland presents a challenging location for year-round solar energy generation, with significant seasonal variations that reflect the typical constraints of the Northern Temperate Zone climate.
Seasonal Solar Performance
The solar energy output at this location varies dramatically throughout the year. Summer months deliver the strongest performance at 5.58 kWh per day per kW of installed capacity, making this the ideal time for solar generation. Spring follows as the second-best season with 4.64 kWh per day per kW, offering nearly comparable energy production. However, the colder months present substantial challenges. Autumn drops significantly to 2.16 kWh per day per kW, while winter plummets to just 1.09 kWh per day per kW - representing only about 20% of summer production levels.Optimal Installation Configuration
For maximum year-round energy production at Clonakilty, Munster, solar panels should be installed at a fixed tilt angle of 43 degrees facing south. This angle optimizes the panels' ability to capture solar radiation throughout all seasons by accounting for the sun's changing position and the Earth's elliptical orbit.Local Environmental Challenges
Several significant environmental factors in Clonakilty can impede solar energy production:- Frequent cloud cover and overcast conditions typical of Ireland's maritime climate
- High humidity levels that can cause moisture buildup on panel surfaces
- Salt air corrosion from the nearby Atlantic Ocean
- Strong coastal winds that can deposit debris on panels
- Regular rainfall that, while helpful for cleaning, indicates limited clear sky periods
Preventative Installation Measures
To maximize energy production despite these challenges, several installation strategies prove beneficial:- Use marine-grade mounting hardware and corrosion-resistant materials to withstand salt air exposure
- Install panels with adequate spacing for wind circulation to prevent moisture accumulation
- Implement regular cleaning schedules to remove salt deposits and debris
- Choose high-quality panels with anti-reflective coatings that perform better in diffuse light conditions
- Ensure proper drainage systems to prevent water pooling around installations
- Consider micro-inverters or power optimizers to minimize impact when individual panels are shaded
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 104 locations across Ireland. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Ireland by location
Solar output per kW of installed solar PV by season in Clonakilty
Seasonal solar PV output for Latitude: 51.6188, Longitude: -8.8774 (Clonakilty, Ireland), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 43° South in Clonakilty, Ireland
To maximize your solar PV system's energy output in Clonakilty, Ireland (Lat/Long 51.6188, -8.8774) throughout the year, you should tilt your panels at an angle of 43° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Clonakilty, Ireland
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Clonakilty, Ireland. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 43° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 35° South in Summer | 55° South in Autumn | 65° South in Winter | 43° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Clonakilty, Ireland
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Clonakilty, Ireland.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Clonakilty, Ireland
Topography Around Clonakilty
Clonakilty sits in a gently undulating coastal landscape in West Cork, where the land gradually slopes from inland hills down to the Atlantic Ocean. The town itself is positioned on relatively low-lying terrain, approximately 30 meters above sea level, nestled in a valley that opens toward Clonakilty Bay. The surrounding countryside is characterized by rolling hills that rarely exceed 200 meters in elevation, creating a landscape of moderate relief that is typical of this part of County Cork.
To the north and northeast of Clonakilty, the terrain rises gradually into the foothills of the broader Cork uplands. These areas feature a patchwork of agricultural fields separated by hedgerows and stone walls, with occasional patches of woodland scattered across the landscape. The hills here are rounded and weathered, shaped by centuries of Atlantic weather patterns and agricultural use.
Southward toward the coast, the land becomes increasingly flat as it approaches the shoreline. This coastal plain extends along much of Clonakilty Bay and the adjacent coastline, interrupted only by small headlands and the occasional low cliff. The area around the bay itself is quite level, with extensive areas of reclaimed land and natural flat terrain that has been shaped by marine processes over millennia.
The western approaches to Clonakilty feature similar gently rolling topography, with the land rising and falling in broad, sweeping curves. Small streams and rivers have carved shallow valleys through this landscape, creating a varied but generally accessible terrain. The eastern side of the area shows slightly more pronounced hill formations, though these remain modest in scale and present no significant topographical barriers.
Optimal Areas for Large-Scale Solar Development
The coastal plain extending south and southwest of Clonakilty presents the most promising opportunities for large-scale solar photovoltaic installations. These areas combine the advantages of relatively flat terrain with good accessibility and minimal shading from surrounding landscape features. The level nature of this coastal zone would significantly reduce site preparation costs and allow for optimal panel positioning across extensive areas.
The gently sloping hillsides to the north and northeast of the town also offer excellent potential for solar development. These areas provide natural south-facing slopes that could be ideal for maximizing solar exposure while maintaining good drainage. The moderate gradient of these hills would allow for straightforward installation procedures while providing natural wind protection that could benefit panel longevity.
Areas of particular interest include the broad, open agricultural lands that stretch inland from the coast, where large field systems could accommodate substantial solar arrays with minimal landscape modification. The relatively uniform elevation changes across these areas would allow for consistent panel angles and simplified electrical infrastructure installation.
The western approaches to Clonakilty also present viable options, particularly where the landscape opens into broader valley systems. These areas often combine favorable topography with good road access, which would be essential for construction and maintenance activities. The sheltered nature of some of these valley locations could provide additional protection from the strong Atlantic winds that characterize this coastal region.
Less suitable areas would include the immediate coastal zone where salt spray and extreme weather exposure could impact equipment longevity, as well as the steeper hill crests where installation would be more challenging and exposure to severe weather conditions more pronounced. The small valleys with north-facing aspects would also be less optimal due to reduced solar exposure and potential shading issues from surrounding higher ground.
Ireland solar PV Stats as a country
Ireland ranks 83rd in the world for cumulative solar PV capacity, with 136 total MW's of solar PV installed. Each year Ireland is generating 27 Watts from solar PV per capita (Ireland ranks 61st in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Ireland?
Yes, there are a number of incentives available for businesses wanting to install solar energy in Ireland. The Sustainable Energy Authority of Ireland (SEAI) offers grants and other financial support for businesses that wish to install solar PV systems. Additionally, the government has introduced a Feed-in Tariff scheme which pays businesses for any excess electricity they generate from their solar panels. Finally, businesses may be eligible for tax relief on the cost of installing a solar system through the Accelerated Capital Allowance Scheme.
Do you have more up to date information than this on incentives towards solar PV projects in Ireland? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 1st of July 2025
Last Updated: Wednesday 6th of August 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




