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Ground Screw and Helical Screw Pile Foundations for Solar

Whether it's a solar array in your garden or a large-scale commercial solar farm, our low-impact screw foundations get your energy production off the ground while minimising environmental impact and maximising output. Ground screws are ideal for domestic and small commercial installations, while our helical screw pile foundations provide the certified load capacity that commercial solar and renewable energy projects require.

The benefits of screw foundations for solar panel installations

  • Rapid Installation

    Fast and effective installation which requires no digging or concrete, creating an immediate foundation for your solar array – across hundreds or thousands of mounting points.

  • Tested and Quantifiable

    Our ground screws can be compression load tested, and our helical screw piles are installed with calibrated torque monitoring. Both produce certified data for engineer approval and project stakeholder requirements.

  • Designed to last

    Our ground screws are fully galvanised to BS EN 1461:2009. Our helical screw piles are manufactured to EN 1090-1, ISO 3834, and EN ISO 1461 – engineered to match the lifetime of your solar installation.

  • Immediately load bearable

    Both ground screws and helical screw piles are immediately load-bearing – mounting and panel installation starts as soon as the foundations are in place.

  • Permanent or temporary structures

    Suitable for permanent or temporary structures and easily removable without site damage – important for leased agricultural land.

  • Environmentally friendly

    Reduced CO2 compared to pouring concrete. No excavation means no disruption to agricultural land, habitats, or tree root systems.

  • Reduced Disruption

    Screw foundations produce minimal vibration and noise – and leave no trace if the installation is decommissioned.

Helical screw pile foundations for commercial solar farms

For commercial-scale solar farms, our helical screw pile foundations handle the high tension and uplift forces generated by large panel arrays in open, exposed fields:

  • Machine-installed using tracked machines or excavators from 1.5t to 20t with calibrated torque monitoring
  • Handles the tension, compression, and lateral loads specific to solar mounting systems
  • Every pile produces a comprehensive torque pile log recording installation torque, depth, pile identification, and performance data
  • Certified load capacity reports generated through deep foundation software – meeting the standards required by energy providers and planning authorities
  • Stock sizes from 76R to 140R, with bespoke manufacturing to match the array specification
  • Manufactured to EN 1090-1 (CE/UKCA), ISO 3834 (welding quality), and EN ISO 1461 (hot-dip galvanising)
  • High-volume installation capacity – our teams install at scale across multiple sites
  • Not weather-dependent – installation carries on in conditions that would delay concrete
  • Design life of up to 100 years

Site-Specific Load Testing for Solar Projects

Due to the high tension and uplift forces generated from large solar panel arrays in open fields, we offer tension and compression load testing for both ground screws and helical screw piles. Our testing is supported by a findings report to provide assurance that the foundations specified are suitable for your site conditions.

For helical screw pile installations, comprehensive torque pile logs document the performance of every pile, providing the certified data that engineers and project stakeholders require.

Check out our Load Testing page for more information.

Ground screws for garden solar installations

Discover the convenience and reliability of our DIY range designed specifically for anchoring personal solar arrays in your garden. With our user-friendly ground screws, you can effortlessly secure your solar panels to the ground, ensuring stability and optimal performance. Take the first step towards sustainable energy independence by exploring our products today.

Why choose our screw foundations for solar?

  • DIY ground screw supply for garden solar installations
  • Helical screw pile foundations for commercial solar farms
  • Capacity for high-volume installations across multiple sites
  • Nationwide delivery or installation service
  • Flat head or open top designs to suit a range of fixing details
  • Comprehensive torque pile logs and certified load data for commercial projects
  • Tension and compression load testing with findings report
  • 15 years of ground screw technology experience
  • CE-approved with a 20-year product guarantee
  • Hot-dip galvanised to BS EN 1461:2009

Frequently asked questions

  • Yes. Large solar panel arrays in open, exposed fields generate high tension and uplift forces. Our helical screw piles are specifically designed to handle these loads, with every pile torque-monitored during installation to verify it meets the required capacity. We provide certified load data for energy providers and planning authorities.

  • Yes. Our DIY ground screw range is well-suited for anchoring personal solar arrays in your garden. They’re easy to install by hand, immediately load-bearing, and can be repositioned if your layout changes. Use our ground screw calculator to work out what you need.

  • Yes. We offer both tension and compression load testing for solar projects, supported by a detailed findings report. This is particularly relevant for agricultural sites where soil conditions can vary across the plot and the foundations need to resist high uplift forces from exposed panel arrays.

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