Chard, England, United Kingdom presents a moderately viable location for year-round solar PV energy generation, though with significant seasonal variations typical of the Northern Temperate Zone. The location experiences its peak solar production during summer months at 5.80kWh per day per kW of installed capacity, while winter production drops dramatically to just 1.07kWh per day per kW.

Seasonal Performance Overview

The solar energy output at Chard follows a predictable seasonal pattern. Summer represents the optimal period for solar generation, producing more than five times the energy of winter months. Spring offers strong performance at 4.86kWh per day per kW, making it nearly as productive as summer. Autumn provides moderate output at 2.45kWh per day per kW, while winter presents the most challenging period with minimal solar generation. For maximum year-round energy production from a fixed panel installation at this location, solar panels should be tilted at 43 degrees facing south. This angle optimizes total annual output by accounting for the sun's varying position throughout the year and Earth's elliptical orbit.

Environmental and Weather Factors

Several local factors in Chard can significantly impact solar production and require careful consideration during installation:

• Frequent cloud cover and rainfall: The UK's maritime climate brings regular overcast conditions and precipitation, which can substantially reduce solar irradiance reaching the panels
• High humidity and moisture: Persistent dampness can lead to dirt, algae, and moss accumulation on panel surfaces
• Salt air exposure: Being relatively close to coastal areas, salt-laden air can cause corrosion of mounting systems and electrical components
• Wind exposure: The location may experience strong winds that can affect panel stability and create debris accumulation

Preventative Measures for Optimal Performance

To maximize solar energy production despite these environmental challenges, several installation strategies should be implemented:

• Enhanced cleaning systems: Install panels with smooth, self-cleaning glass surfaces and establish regular maintenance schedules to remove dirt, moss, and debris
• Corrosion-resistant materials: Use marine-grade aluminum mounting systems and stainless steel hardware to withstand moisture and salt exposure
• Improved drainage design: Ensure proper panel spacing and mounting angles that promote water runoff and prevent standing water
• Wind-resistant installation: Utilize reinforced mounting systems designed for high wind loads and consider ground-mounted systems in extremely exposed locations
• Micro-inverter technology: Deploy micro-inverters or power optimizers to minimize the impact of partial shading from clouds or debris on individual panels

Regular monitoring and maintenance become particularly important at this location due to the challenging weather conditions. Professional cleaning and inspection services can help ensure panels maintain optimal performance throughout the year, especially during the more productive spring and summer months when maximizing output is most beneficial.

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 Chard

Seasonal solar PV output for Latitude: 50.8742, Longitude: -2.9643 (Chard, 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 Chard, United Kingdom

To maximize your solar PV system's energy output in Chard, United Kingdom (Lat/Long 50.8742, -2.9643) 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 Chard, 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 Chard, 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	64° 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 Chard, 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 Chard, 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 Chard, United Kingdom

Topography Around Chard

Chard sits in the Somerset countryside at approximately 130 metres above sea level, positioned in a transitional zone between the Somerset Levels to the north and the higher ground of the Blackdown Hills to the south. The town occupies a relatively elevated position compared to much of the surrounding Somerset landscape, which creates an interesting mix of terrain types within a relatively small area. The immediate vicinity of Chard features gently rolling hills and undulating farmland, characteristic of the Somerset-Devon border region. To the north and northwest, the land gradually descends towards the famous Somerset Levels, creating increasingly flat and low-lying terrain. This area represents some of the most level ground in the region, with large fields separated by drainage ditches and rhynes that were historically created to manage water levels in this former marshland. South and southeast of Chard, the landscape becomes more pronounced as it approaches the Blackdown Hills, an Area of Outstanding Natural Beauty. These hills rise to elevations exceeding 300 metres, creating a more dramatic backdrop with steeper slopes, deeper valleys, and more varied terrain. The western edges of these hills feature a series of ridges and valleys that run roughly north-south.

Terrain Characteristics for Solar Development

The topography immediately around Chard presents a mixed picture for large-scale solar photovoltaic development. The town itself sits on ground that slopes gently in various directions, but much of the surrounding agricultural land consists of moderate slopes that could accommodate solar installations with appropriate engineering. The most promising areas for large-scale solar development lie to the north and northwest of Chard, where the land begins its gradual descent towards the Somerset Levels. These areas offer extensive flat to gently sloping fields with good southern exposure and minimal shading from surrounding terrain. The field sizes in this direction tend to be larger, having been shaped by centuries of agricultural improvement and drainage works. The Somerset Levels themselves, while extremely flat and offering unobstructed solar access, present challenges due to their low elevation and proximity to water management systems. However, the transitional zone between Chard and the Levels proper offers an excellent compromise, providing relatively level ground at sufficient elevation to avoid drainage complications while maintaining the open aspect necessary for solar collection. Areas to the east and northeast of Chard also show potential, where the landscape consists of gently rolling agricultural land with moderate slopes that could be suitable for solar development. The field patterns here are typically oriented to take advantage of the natural drainage, often creating south-facing slopes that would be ideal for solar panel orientation. The terrain to the south and southeast becomes increasingly challenging for large-scale solar development as it approaches the Blackdown Hills. The steeper gradients, smaller field sizes, and increased likelihood of shading from adjacent hills make these areas less suitable for extensive solar installations, though smaller developments might still be viable on appropriately oriented slopes.

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.