Screw-pile foundations offer several benefits for solar installations, including their ease of installation, stability, durability, and ability to withstand wind uplift. One of the most significant benefits of screw-pile foundations for solar installations is their ability to negate wind uplift. Wind uplift occurs when strong winds create a lifting force on the solar panels or mounting system, which can cause damage to the system and compromise its stability. Screw-pile foundations are designed to anchor the solar installation firmly to the ground, preventing the system from being lifted or shifted by wind uplift.
Screw-pile foundations achieve this by screwing deep into the ground, creating a secure anchor point for the solar installation. The depth and diameter of the screw-pile depend on the specific soil conditions of the installation site, ensuring that the system is anchored securely.
In addition to their ability to negate wind uplift, screw-pile foundations are also beneficial for solar installations because they are easy to install and require minimal excavation. They can be installed quickly and efficiently using specialised equipment, reducing installation time and costs. Screw-pile foundations are also durable and long-lasting, with a lifespan of up to 50 years or more. They are resistant to corrosion and can withstand extreme weather conditions, making them an ideal choice for solar installations.
Of critical importance is the ability of screw-piles to overcome poor soil conditions which can save a project when insufficient ground investigations are carried out before land purchase. Another unique feature is that screw-piles can transform sites that were previously unviable for construction due to poor soil condition into fully viable options for solar farms.