On behalf of our client, National Grid, Murphy is working to extend the Elstree 132kV GIS substation in Hertfordshire to facilitate two new circuits and facilitate the construction of nine additional SGT bays which will provide the increased power capacity. The circuits are planned to be delivered over two consecutive weekends and the is being carried out with the support of teams across the business including Ground Engineering. KEY FACTS Construction of nine new GIS bays Work will include 125 continuous flight auger piles
