Penarth, Wales, United Kingdom, located at 51.4367° N, -3.1664° W in the Northern Temperate Zone, has varying potential for solar PV energy generation throughout the year. The seasonal electricity output shows significant fluctuations that are typical for locations at this latitude.

Seasonal Solar Production

Solar energy generation in Penarth follows a predictable seasonal pattern. During summer months, solar panels produce an impressive 5.36 kWh per day for each kilowatt installed. Spring is the second most productive season with 4.48 kWh/day per kW installed. Production drops considerably in autumn to 2.25 kWh/day and reaches its lowest point in winter with just 1.01 kWh/day per kW of installed capacity.

This pattern creates a roughly 5:1 ratio between the best and worst seasons, which is characteristic of locations in the Northern Temperate Zone. The most productive period spans from April through September, with peak generation occurring around the summer solstice in June.

Optimal Panel Installation

For fixed solar panel installations in Penarth, Wales, the ideal tilt angle to maximize year-round energy production is 43 degrees facing South. This specific angle has been calculated to optimize the annual solar yield by accounting for the sun's changing position throughout the year and the varying solar potential across seasons.

Environmental and Weather Considerations

Several environmental factors in Penarth could potentially impact solar production:

• Coastal cloud cover and fog can be significant in this Welsh coastal town, potentially reducing solar irradiance during otherwise sunny periods
• Rainfall and humidity levels are relatively high in the region, which can temporarily decrease panel efficiency
• Salt spray from the nearby Bristol Channel may accumulate on panels, creating a thin film that reduces light transmission

To mitigate these challenges, solar installations in Penarth should incorporate several preventative measures. Regular cleaning schedules are essential to remove salt deposits and other debris. Installing panels with anti-reflective coatings and self-cleaning properties can help maintain efficiency. Additionally, using marine-grade mounting hardware will prevent corrosion from the coastal environment, ensuring longer system life and consistent performance.

Despite these challenges, Penarth's solar potential, particularly during summer and spring, makes it a viable location for solar PV installations when properly designed and maintained.

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 Penarth

Seasonal solar PV output for Latitude: 51.4367, Longitude: -3.1664 (Penarth, 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 Penarth, United Kingdom

To maximize your solar PV system's energy output in Penarth, United Kingdom (Lat/Long 51.4367, -3.1664) 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 Penarth, 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 Penarth, 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 Penarth, 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 Penarth, United Kingdom.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Penarth, United Kingdom

Penarth is situated on the northern shores of the Severn Estuary in the Vale of Glamorgan, Wales. The town sits on a headland with distinctive topographical features that have shaped its development and character. The landscape around Penarth includes a variety of terrains that make it a unique coastal settlement.

Coastal Topography

The most prominent topographical feature of Penarth is its elevated position on a headland that rises approximately 30-40 meters above sea level. This headland provides panoramic views across the Severn Estuary toward Somerset and Devon on the English side. The coastline is characterized by distinctive cliffs composed primarily of Blue Lias limestone and shale formations, which create a dramatic visual effect along the shoreline. Penarth Beach stretches below these cliffs, with a mix of pebbles and sand exposed at low tide. The beach area transitions into the Cardiff Bay area to the northeast, where the landscape has been significantly altered through human intervention, particularly with the construction of the Cardiff Bay Barrage.

Inland Features

Moving inland from the headland, the terrain of Penarth gently undulates with modest hills and shallow valleys. The land rises gradually toward the northwest, forming what locals often refer to as "Penarth Heights." This elevated area provides natural viewpoints across the Bristol Channel. The surrounding Vale of Glamorgan features relatively flat agricultural land with gentle rolling hills. This contrasts with the more dramatic uplands found further north in Wales. The soil composition in the region is generally fertile, supporting agricultural activities throughout the Vale.

Water Features

Water features significantly influence the topography around Penarth. To the east lies Cardiff Bay, formerly the confluence of the Rivers Taff and Ely, now transformed into a freshwater lake by the barrage. The Severn Estuary dominates the southern aspect, with its substantial tidal range (among the highest in the world) dramatically altering the visible landscape throughout the day. Several small streams and drainage channels cross the area, typically flowing from the higher ground toward the estuary or bay. These waterways have carved subtle valleys into the landscape over time.

Potential for Solar PV Development

When considering areas near Penarth suitable for large-scale solar PV development, several factors must be evaluated including topography, land use, grid connection possibilities, and environmental considerations. The gently rolling agricultural lands of the Vale of Glamorgan to the west and northwest of Penarth present promising opportunities for solar development. These areas benefit from relatively flat terrain that minimizes installation complexity and maximizes exposure to sunlight. The agricultural classification of some of these lands may present planning challenges, but less productive fields could be appropriate candidates. The more elevated areas to the north of Penarth, extending toward the M4 corridor, offer another potential zone for development. These locations combine reasonable topography with proximity to existing electrical infrastructure, potentially reducing connection costs. Areas to avoid would include the coastal cliff zones, which have environmental designations and unstable ground conditions, as well as the more densely populated residential zones immediately surrounding Penarth itself. The former industrial areas between Penarth and Cardiff might offer brownfield development opportunities that would face fewer planning obstacles than greenfield sites. These locations typically have existing grid connections and represent land with limited alternative uses. Any large-scale solar development would need to consider the visual impact on the landscape, particularly given the tourist appeal of the Penarth coastline and the cultural significance of the area. Thoughtful siting and design would be essential to balance renewable energy objectives with preservation of the distinctive topographical character that defines this part of South Wales.

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!

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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.