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Ground-Mounted Solar Panels: Everything You Need to Know

As the demand for renewable energy grows, more homeowners and businesses are considering ground mounted solar panels as an alternative to traditional energy sources. While rooftop solar installations are the most common, ground-mounted solar panels are becoming increasingly popular for those who have the space. In this blog, we’ll answer some of the most frequently asked questions about ground-mounted solar systems in the UK.


Is Ground Mount Solar Worth It?


Yes, ground-mounted solar panels can be a worthwhile investment, especially if you have the space. These systems often allow for optimal panel positioning, which maximises energy production. Additionally, ground-mounted panels can be easier to maintain and clean, as they’re more accessible than rooftop installations. While they may have a higher upfront cost compared to roof-mounted panels, the long-term energy savings can make them an excellent option.



a ground mounted solar panel in a field
Ground Mounted Solar Panels


Do Ground-Mounted Solar Panels Need Planning Permission?


In the UK, most residential solar installations fall under Permitted Development Rights, meaning they typically don’t require planning permission. However, for ground-mounted systems, planning permission may be necessary if:


  • The panel array exceeds 9m².

  • The system is higher than 4 metres.

  • It’s located within 5 metres of the boundary of the property.

  • Your property is in a designated area such as a National Park or a conservation area.


To avoid potential issues, it’s always advisable to consult your local planning authority before proceeding with an installation.


How Much Do Ground-Mounted Solar Panels Cost in the UK?


The cost of a ground-mounted solar system in the UK depends on various factors, including the size of the system, type of panels used, and installation fees. On average, a ground-mounted solar installation can cost between £8,000 and £15,000 for a 4kW system. The higher end of the range typically includes larger systems and more premium components.


Why Is Ground Mount Solar So Expensive?


Ground-mounted solar panels are generally more expensive than roof-mounted systems for several reasons:


Materials and Labour: Ground installations require additional racking and support structures, which increases material and labour costs.


Trenching for Wiring: Since the system is not directly connected to your home, trenching may be necessary to run cables between the panels and your electrical system, which adds to the installation cost.


Site Preparation: Ground installations often require land preparation, levelling, or clearing vegetation, which can add to the overall cost.


How Much Does It Cost to Install a Ground Mount Solar System?


Installation costs for ground-mounted solar panels vary depending on the complexity of the project. The typical range is between £1,000 and £2,000 per kW installed. For a 5kW system, installation costs alone could range from £5,000 to £10,000. This price includes labour, trenching, and racking system installation.


Can I Just Lay Solar Panels on the Ground?


While technically you could lay solar panels on the ground, it is not recommended. Panels need to be angled correctly to capture the most sunlight, and simply placing them flat on the ground reduces their efficiency. Additionally, panels on the ground without proper mounting are more prone to dirt, debris, and damage from animals or people walking on them. A proper mounting system ensures optimal performance and longevity of the panels.


Can Neighbours Object to Solar Panels?


Neighbours can object to ground-mounted solar installations, particularly if they believe the installation will negatively impact their view or property value. However, in most cases, unless the installation violates local planning rules, these objections will not stop you from proceeding with your project. To avoid disputes, it’s a good idea to discuss your plans with your neighbours before starting the installation process.


How Many Solar Panels Does It Take to Make a 5kW System?


The number of panels required for a 5kW system depends on the wattage of each panel. If you use 400W panels, you would need 13 panels to reach 5kW (5,000W). If you opt for lower-wattage panels, such as 300W, you would need 17 panels. It’s important to account for the available space when planning your installation.


Is It Better to Put Solar Panels on the Roof or on the Ground?


Whether it’s better to install solar panels on your roof or on the ground depends on your specific circumstances:


Space: If you have ample land, ground-mounted systems might be a better option. However, if your land is limited, rooftop panels might be the only viable solution.


Efficiency: Ground-mounted panels can be positioned at the optimal angle and can track the sun’s movement, resulting in higher efficiency. Rooftop systems are limited by the angle and orientation of your roof.


Aesthetics: Some people prefer roof-mounted systems to avoid having solar panels visible in their yard. Ground-mounted systems can also take up space that could be used for other purposes.


Ultimately, both options have their pros and cons, and the choice depends on factors such as available space, budget, and personal preference.


Conclusion


Ground-mounted solar panels offer a flexible and efficient way to harness solar energy, especially if you have the land available for installation. While they tend to be more expensive upfront, they can provide significant long-term energy savings. Before making a decision, it’s essential to consider factors like planning permission, costs, and potential neighbour objections. With the right planning and installation, ground-mounted solar panels can be a smart investment for years to come.

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