Ground-mounted solar panels are more efficient than roof-mounted solar panels, as achieving the best angle and direction is easier when no roof is in the way. This setup also enables the installation of bifacial solar panels, which can turn more sunlight into power. Contact online >>
Ground-mounted solar panels are more efficient than roof-mounted solar panels, as achieving the best angle and direction is easier when no roof is in the way. This setup also enables the installation of bifacial solar panels, which can turn more sunlight into power.
They are also cooler than those installed on roofs, meaning they are more efficient for longer.But, they are also more prone to obstacles, like buildings or trees, blocking their sun exposure.
If a home has a lot of land attached to it, then ground-mounted solar panels could be a good option – and if they’re exposed to more sunlight, then you’ll be able to break even on the cost of solar panels sooner.
To give you a better idea of whether ground-mounted panels are right for you, this article will go over how much ground-mounted solar panels cost, how much space they take up, and compare them to roof-mounted solar panels.
Unlike typical solar panel systems, ground-mounted panels are fixed into the floor, instead of on the roof. Although they’re commonly used for solar farms, they can also be used in domestic solar panel setups.
Solar panels can either be mounted on a metal frame or fixed on a single pole – both of which are driven into the ground, or anchored with concrete for stability.
Pole-mounted panels can also be fitted with a solar tracking system, which adjusts the angle of the panel, based on the sun’s position in the sky.
Tracking systems allow solar panels to receive optimal sun exposure and can increase efficiency by 20% to 35%. But they are also expensive – they cost around £2,500 – and some electricity will be sacrificed to operate the tracking system.
As previously mentioned, they are also one of the best ways to install bifacial solar panel systems. These panels generate solar energy from both sides and are typically able to produce 10-30% more electricity than conventional panels. They are more expensive initially, but there superior PV generation speeds up the payback you get.
The average cost of a solar panel system in the UK is £7,026 for a three-bedroom house, but ground-mounted solar panels should cost a little more than this. To give you an idea, an average system would set you back between £8,000 and £15,000.
According to Solartherm UK, ground-mounted solar panels can be 25% to 35% more expensive than roof-mounted ones. The reason behind the added cost is that ground-mounted systems require more materials and take more time to install.
In a roof-mounted solar panel system, the roof is a pre-existing supporting structure. But, in a ground-mounted system, that structure needs to be built from scratch and anchored into the ground so that the panels remain stable.
Ground-mounted solar panels also need longer wires than roof-mounted ones since they are located further away from the house’s electrical system. These wires usually need to be trenched into the ground to prevent damage by the natural environment.
Some more advanced ground-mounted solar panels are being introduced into public spaces, charmingly named ‘solar trees’. These artificial trees are equipped with solar panels that generate and store clean energy from the sun. However, these innovations can cost as much as £62,000 per structure.
The average three-bedroom house will need around 50 square metres of space for ground-mounted solar panels to meet its energy needs.
This typically means solar panels can be fitted in a garden – although you would need around 30 square meters to fit enough solar panels to power a three-bedroom house.
If a property has less than 30 square metres of land, ground-mounted solar panels can still be fitted in a garden, either to supplement the solar panels on the roof of the house, or to power sheds or garden lights.
One 350-watt (W) solar panel is around two metres long and one metre wide. A three-bedroom house will need around 10 of these to meet its energy needs, equalling a total of 20 square metres.
But an extra 5–10 metres of space needs to be factored in for ground-mounted solar panels because they need to be far enough away from the house, so that they don’t fall under its shade.
The exact distance ground-mounted panels need to be from the house will depend on a number of factors, including the size of the system and the height of the property. Thankfully, installers will assess this before they crack on with the installation
If you want to work out how many solar panels your property needs, and how much space they’ll take up, check out our helpful guide.
Ground-mounted solar panels don’t necessarily need to be close to your property, but the further away panels are, the more expensive they will be to install.
Why exactly does it cost more? Well, the further away ground-mounted solar panels are from the property they are powering, the longer the wiring will have to be. And the more material you use, the more the installation will cost.
Wiring that stretches over a long distance also needs to be thicker than usual to prevent a drop in voltage – the pressure that pushes electricity – as the electricity travels from your panels to your home. Voltage drops can reduce the operating efficiency of a home’s electrical system, so it’s important to avoid them.
An alternative to ground-mounted solar panels are solar panel fences. Find out more about them on our page.
In most cases, solar panels can increase the value of a house by around 4.1%. This is probably because of the many benefits that come with owning solar panels, such as lower electricity bills and a decreased carbon footprint. If you have ground-mounted solar panels though, it’s worth bearing in mind that your property will have less free land space, so solar panels might not necessarily increase its value.
Ground-mounted solar panels are installed on the ground instead of on a building’s roof. They allow for optimal placement to maximize sun exposure, resulting in higher energy production. Ground-mounted systems are highly versatile and can be adjusted for the best tilt and orientation.
They are easier to access for maintenance and cleaning, which can improve their efficiency and longevity. Additionally, ground-mounted solar panels are ideal for properties with ample land but unsuitable roofs for solar installations due to shading, orientation, or structural limitations.
Roof-mounted solar panels are directly installed on a building’s roof, making them a popular choice for residential and commercial properties with limited land space. This installation type takes advantage of otherwise unused space, seamlessly integrating into the existing structure and preserving the property’s aesthetics.
Roof-mounted systems can benefit from natural cooling as the panels create a layer of shade for the roof, potentially reducing cooling costs for the building. While they may be more challenging to access for maintenance compared to ground-mounted systems, roof-mounted panels are an efficient and space-saving option for harnessing solar energy in urban and suburban settings.
If a ground-mounted solar panel system is larger than nine square metres – the equivalent of four to five panels – it will require planning permission.
For context, you would need a 10-panel system to power a typical three-bedroom house, which would take up around 20 square metres. This means that most homeowners who want to install a ground-mounted solar panels system large enough to power their entire home will need planning permission.
Homeowners inlisted buildings will also need planning permission for their solar panels, regardless of the size of the ground-mounted solar system. The same goes for some properties in a conservation area or a world heritage site – if the property is near a highway, and the solar panels are installed closer to the highway than the house itself.
You can check all the requirements and apply for planning permission by using the Planning Portal.
Tatiana has used her research skills to turn complex data into easily digestible articles on all things eco – from energy-efficient appliances to solar panels.
Before settling back in her native city of London, Tatiana lived in various other cities, across three different countries. She''s witnessed varying approaches and attitudes towards tackling the climate crisis in her time abroad, and uses this experience to inform her writing. She''s dedicated to opening up the conversation around green energy to a wider audience.
In her free time, Tatiana enjoys cooking with seasonal local produce, or going for long walks in green spaces.
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