Rhoose, a village in the Vale of Glamorgan, Wales, United Kingdom, presents a mixed picture for solar PV energy generation. Located in the Northern Temperate Zone, this coastal area experiences significant seasonal variations in solar output.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive 5.42 kWh per day for each kW of installed solar capacity. Spring follows closely, generating 4.54 kWh/day. These warmer months, particularly from May to August, offer the best conditions for solar energy production.
However, the colder months see a dramatic decline in output. Autumn yields 2.31 kWh/day, while winter plummets to a mere 1.05 kWh/day. This stark contrast highlights the challenges of relying solely on solar power year-round in Rhoose.
Optimal Panel Installation
To maximize year-round solar production, fixed panels should be tilted at a 43-degree angle facing south. This orientation helps capture the most sunlight throughout the year, balancing the seasonal variations in the sun's position.
Environmental and Weather Considerations
Several factors can impact solar production in Rhoose:
- Coastal Climate: Being near the Bristol Channel, Rhoose experiences higher humidity and salt spray, which can potentially corrode solar equipment over time.
- Cloud Cover: The UK is known for its cloudy weather, which can significantly reduce solar efficiency, especially during autumn and winter.
To mitigate these challenges, consider using marine-grade materials for mounting systems and ensuring panels have robust protective coatings. Regular cleaning to remove salt deposits and investing in high-efficiency panels can help maintain optimal performance despite less-than-ideal conditions.
While Rhoose's location isn't ideal for year-round solar production, with proper planning and equipment, it can still be a viable option for supplementing energy needs, particularly during the longer, brighter days of spring and summer.
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 911 locations across United Kingdom. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in United Kingdom by location
Solar output per kW of installed solar PV by season in Rhoose
Seasonal solar PV output for Latitude: 51.4049, Longitude: -3.3818 (Rhoose, United Kingdom), 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 Rhoose, United Kingdom
To maximize your solar PV system's energy output in Rhoose, United Kingdom (Lat/Long 51.4049, -3.3818) 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 Rhoose, United Kingdom
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 Rhoose, United Kingdom. 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 | 54° 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 Rhoose, United Kingdom
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 Rhoose, United Kingdom.
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 Rhoose, United Kingdom
The area around Rhoose, located in the Vale of Glamorgan in South Wales, United Kingdom, features a diverse and picturesque topography. Situated along the northern coast of the Bristol Channel, Rhoose and its surrounding landscape are characterized by a mix of gently rolling hills, coastal cliffs, and relatively flat agricultural land. To the north of Rhoose, the terrain gradually rises, forming a series of low hills and valleys typical of the Vale of Glamorgan. These undulating features create a patchwork of fields, pastures, and small woodlands, giving the area a distinctly rural feel. The soil in this region is generally fertile, supporting a variety of crops and livestock farming. Heading south towards the coast, the land becomes flatter before dramatically meeting the sea in a series of impressive limestone cliffs. These cliffs, part of the Glamorgan Heritage Coast, offer stunning views across the Bristol Channel and provide important habitats for various plant and animal species.
Potential for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The ideal locations would typically be: The gently sloping agricultural land to the north and northeast of Rhoose presents good potential for solar farms. These areas receive ample sunlight and have fewer obstructions that could cast shadows on solar panels. The gradual incline of the land can also be advantageous, as it allows for optimal panel positioning to capture maximum sunlight throughout the day. Some of the flatter areas closer to the coast, but set back from the cliffs, could also be suitable. These locations benefit from high levels of solar irradiance due to their proximity to the sea and lack of significant geographical features that might obstruct sunlight. However, it's important to note that the Vale of Glamorgan is an area of considerable natural beauty and agricultural importance. Any large-scale solar PV development would need to be carefully planned and implemented to minimize visual impact and potential conflicts with farming activities. Additionally, environmental considerations, such as the impact on local wildlife and ecosystems, would need to be thoroughly assessed before any project could proceed. Ultimately, the most suitable locations for solar PV installations would be those that strike a balance between optimal solar conditions, minimal environmental impact, and compatibility with existing land use patterns in the area surrounding Rhoose.United Kingdom solar PV Stats as a country
United Kingdom ranks 14th in the world for cumulative solar PV capacity, with 13,689 total MW's of solar PV installed. This means that 4.00% of United Kingdom's total energy as a country comes from solar PV (that's 20th in the world). Each year United Kingdom is generating 203 Watts from solar PV per capita (United Kingdom ranks 25th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in United Kingdom?
Yes, there are several incentives for businesses wanting to install solar energy in the United Kingdom. The UK government offers a Feed-in Tariff (FiT) scheme which pays businesses for every unit of electricity they generate from their solar panels. Additionally, businesses may be eligible for tax reliefs such as Enhanced Capital Allowances and Renewable Heat Incentives. Finally, some local authorities offer grants or other financial support to help businesses with the cost of installing solar energy systems.
Do you have more up to date information than this on incentives towards solar PV projects in United Kingdom? 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: Friday 18th of October 2024
Last Updated: Monday 21st of July 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.




