Playford relocation and associated transmission line diversions

Client:

ElectraNet

Location:

Port Augusta

Start:

September 2008

Finish:

December 2010

Contract type:

Engineer, Procure, Construct (EPC)

Value:

Capital value of total project < $50m
Initial value of ETSA Utilities' contract - $43m

Description

Portion 1 - Substation design, supply, construction and commissioning
Portion 2 - Transmission line design, supply, construction and commissioning
Portion 3 - Communications design, supply, construction and commissioning

This substation relocation scope included:

• Construction of 160MVA transformer bays with associated 275 kV plant
• Construction of a new 132kV yard bench, which required in excess of 50,000 m3 of bulk earthworks
• Design, supply, installation and commissioning of the required 132kV plant at Davenport & Playford substations
• Procurement, design, installation, and commissioning of new protection and control systems, radio and fibre links between substations
• On site refurbishment of 1 x160 MVA transformer

Overview of key contract successes and learnings:

• 58000 man-hours of work to date with zero loss time injuries
• Comprehensive internal design which led to minimised onsite issues during the construction phase
• Project controls ensured high levels of efficiencies on the project
• Detailed planning and co-ordination reduced the effect of adverse weather and outage minimising
• Project currently ahead of time and under budget