The Substation Switchgear Upgrade consisted of designing two new modular buildings and the associated cable basement to service three HV transformers. The modular buildings’ design allowed for the offsite fit out of the switchroom, minimising disruption during the structure’s installation.

BG&E was responsible for carrying out the civil and structural tender design of the proposed modular structures, basement, foundations, and lifting. This included the design of foundation systems (reinforced in situ concrete) for the modular buildings, cable trenches, and cable support.

Civil works involved surface and foul water drainage design, site grading of the site, designing hardstands for maintenance of the transformer routing and the coordination of the 100kV electrical ducting, and designing the pavement plan and pavement build up details.

Construction of the site is ongoing, and works are expected to be completed by 2025.