Marsden Park Substation is a major 132/11kv zone substation which is required for the extensive residential development occurring in the area.   The substation is sitting between multiple developments, which limit access to the works. Planning the activities was key to ensure the programme could be advanced as scheduled. This included close coordination with Government contractors, energy providers, which resulted in many design changes throughout the construction.  The new substation comprised the provision of substation, new control building, 11kv switch gear, control and protection panels, battery chargers and batteries, 132/11kv transformer bund, two 132kv feeders (provision for three future capacitors), one auxiliary transformer and one isolation transformer with 132kv switchyard.  Extensive footings for outdoor switchyard and associated lighting and security provisions were also part of the works together with extensive in ground conduits ready for the Energy provider to install cables.
Civil and hydraulic site works were included together with driveway works incorporating a heavy-duty sub grade in addition to a precast perimeter fencing system.  The works were well executed with due consideration given to the access constraints and the Authorities and Energy providers demands as the project progressed.