Project C involved the construction of a 100MW Battery Energy Storage System (BESS) adjacent to the National Grid’s 275kV substation. This complex project required a robust earthing system to ensure safety and protect the critical infrastructure surrounding the site, including National Grid and DNO substations, railway water pipes, and nearby residential areas. GreyMatters collaborated with two leading companies to deliver a comprehensive earthing study and voltage assessment, ensuring the safety and efficiency of the BESS site within the high-voltage environment.
GreyMatters provided an in-depth earthing study, focused on mitigating the high 275kV earth fault levels. By using advanced 3D modelling tools, GreyMatters simulated various site conditions, including soil characteristics and moisture levels, to ensure a safe earthing system. A critical component of the project was the impressed voltage assessment, which evaluated and minimised the risks associated with overhead lines and transferred potentials. This meticulous approach ensured that nearby housing and infrastructure were protected from hazardous voltage levels.
GreyMatters’ approach relied heavily on the use of advanced electromagnetic software to analyse the site’s earthing system under different scenarios. The 3D modelling provided highly accurate simulations, allowing for adjustments and improvements to the design before installation. This ensured that the earthing system was tailored to meet the specific challenges of the site, including the high-voltage environment and proximity to critical infrastructure. This precision helped avoid personal safety risks and equipment damage, ensuring a reliable and cost-effective solution.
