Felixstowe, England, United Kingdom presents a moderately challenging location for year-round solar PV energy generation, with significant seasonal variations typical of the Northern Temperate Zone climate.

Seasonal Solar Performance

The solar energy output varies dramatically throughout the year at this coastal Suffolk location. Summer provides the strongest performance at 5.09kWh per day per kW of installed capacity, making it the prime season for solar generation. Spring follows as the second-best period with 4.34kWh per day per kW, offering nearly comparable output to summer months. Autumn sees a notable decline to 2.23kWh per day per kW, while winter presents the greatest challenge with just 0.99kWh per day per kW. This winter figure represents only about 19% of summer production, highlighting the substantial seasonal dependency of solar generation at this latitude.

Optimal Installation Configuration

For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 44 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying elevation throughout the year and weighting these angles according to solar irradiance data.

Local Environmental Challenges

Felixstowe's coastal location presents several factors that can significantly impact solar panel performance:

• Salt air corrosion from the North Sea can degrade panel frames, mounting systems, and electrical connections over time
• Frequent coastal fog and marine layer clouds can reduce solar irradiance, particularly during morning hours
• High winds and storms common to coastal areas can damage panels or mounting systems
• Salt spray deposits on panel surfaces can create a film that reduces light transmission

Preventative Measures for Enhanced Performance

Several installation strategies can help mitigate these coastal challenges. Using marine-grade aluminum frames and stainless steel mounting hardware provides better corrosion resistance than standard materials. All electrical connections should be sealed with marine-grade enclosures and corrosion-resistant materials. Regular cleaning schedules become particularly important in this coastal environment. Monthly panel washing helps remove salt deposits and maintains optimal light transmission. Installing panels with anti-reflective coatings can also help maintain efficiency despite occasional salt buildup. Wind-resistant mounting systems rated for coastal conditions should be specified, with additional structural reinforcement if necessary. Proper drainage design prevents salt water accumulation around mounting points, which could accelerate corrosion.

Overall Assessment

While Felixstowe's coastal location presents maintenance challenges, these can be effectively managed through proper equipment selection and maintenance practices. The location offers reasonable solar potential during spring and summer months, though winter production will be minimal. Property owners should plan for significant seasonal variation in energy generation when sizing systems or calculating payback periods.

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 Felixstowe

Seasonal solar PV output for Latitude: 51.9594, Longitude: 1.3553 (Felixstowe, 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 44° South in Felixstowe, United Kingdom

To maximize your solar PV system's energy output in Felixstowe, United Kingdom (Lat/Long 51.9594, 1.3553) throughout the year, you should tilt your panels at an angle of 44° 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 Felixstowe, 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 Felixstowe, United Kingdom. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 44° 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	44° 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 Felixstowe, 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 Felixstowe, 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 Felixstowe, United Kingdom

Topography of Felixstowe and Surrounding Areas

Felixstowe sits on the Suffolk coast of eastern England, positioned at the confluence of the Rivers Orwell and Stour where they meet the North Sea. The town occupies a relatively flat coastal plain that is characteristic of much of East Anglia, with gentle undulations rather than dramatic elevation changes. The immediate area around Felixstowe lies at modest elevations, typically ranging from sea level to around 30 metres above sea level, creating an landscape that rolls gently inland from the coast.

The coastline itself features a mix of sandy beaches, shingle deposits, and low cliffs, particularly towards the southern end of the town near the Deben estuary. Moving inland from Felixstowe, the terrain remains predominantly flat to gently rolling, with occasional shallow valleys carved by small streams and ancient river systems. This topography is typical of the wider Suffolk Sandlings area, where glacial deposits have created a landscape of heathland, agricultural fields, and scattered woodland.

The surrounding countryside is characterized by large, open agricultural fields that stretch across the gently undulating terrain. These fields are typically bounded by hedgerows and occasional copses, creating a patchwork pattern when viewed from elevated positions. The River Orwell to the north and the River Deben to the south have carved broader, flatter valley floors that provide some of the most level terrain in the region.

Optimal Areas for Large-Scale Solar PV Development

The flat to gently rolling topography around Felixstowe presents numerous opportunities for large-scale solar photovoltaic installations. The most suitable areas would be the extensive agricultural fields that lie inland from the immediate coastal zone, particularly those stretching westward and northwestward from the town. These areas offer the combination of relatively level ground, minimal shading from topographical features, and sufficient space for substantial solar arrays.

The agricultural land between Felixstowe and Ipswich presents particularly promising opportunities, as this area features large, open fields with gentle slopes that would be ideal for solar panel installation. The terrain here is sufficiently flat to minimize the need for extensive ground preparation while still providing adequate drainage. The absence of significant hills or valleys means that shading between panel rows would be minimal, maximizing the efficiency of any solar installation.

Areas to the west and southwest of Felixstowe, extending toward the villages of Trimley and beyond, also offer excellent potential. These locations benefit from the same favorable topographical conditions while being positioned away from the immediate coastal environment, which can present additional challenges for large-scale installations due to salt exposure and planning restrictions near the shoreline.

The river valleys of the Orwell and Deben, while offering some of the flattest terrain in the region, may present drainage challenges during wet periods and could be subject to flooding restrictions. However, the slightly elevated areas adjacent to these valleys, particularly on the gentle slopes that rise away from the floodplains, could provide ideal conditions for solar development while avoiding potential water management issues.

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.