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South Australia - New South Wales Electricity Interconnector

The proposal

The proposal can generally be described as the construction of a new high voltage transmission line with a capacity of up to 330 kilovolts (kV) originating from the existing Robertstown Substation located approximately 5 kilometres north-east of Robertstown, and travelling in an easterly direction to the New South Wales border, concluding at a location north of the River Murray near the Wentworth Road (approximately 50 kilometres north-east of Renmark). The overall development is known as Project EnergyConnect.

For the purposes of the declaration, the proposal includes the following:

  • A 15 kilometre wide investigations corridor whereby a route will be selected in order for the following to occur:
    • erection of freestanding towers, guyed masts or monopoles
    • provision and maintenance of vehicular access to each tower site, including land clearance and the installation of any necessary access gates or fencing
    • clearance of an area for each tower site for construction operations
    • excavation and installation of concrete tower footings or anchors
    • location of winch and brake sites including breaking machines for conductor stringing purposes
    • temporary laydown areas, construction compounds including accommodation, office buildings and sewerage treatment systems, and concrete batching plants.
  • Development associated with the construction of a new 330/275 kV substation, located approximately 15 kilometres north-east of Robertstown.
  • Telecommunications infrastructure.

Assessment stages and documentation

Stages and documentation are listed in chronological order, from most recent to original declaration:

Stage of assessment processDate ▼Documentation

Assessment report by Minister



Release of assessment document by proponent for public comment



Release of guidelines with level of assessment determined

20 November 2019

See Guidelines (PDF, 1072 KB)

Declaration as major development

24 June 2019

Government Gazette dated 27 June 2019, page 2272
Variation notice in Government Gazette dated 19 March 2020, page 562

Page last modified Wednesday, 1 April 2020