30 September 2002 – The world’s longest underground transmission line is to be launched in Victoria, Australia today.
The 177km Murraylink interconnector is already operational and transferring power between Victoria and South Australia. It will be formally opened at Mildura later today. The $A100m ($54.23m) Murraylink project uses two underground high-voltage direct-current cables to link the Victoria and SA electricity grids, allowing power to be traded directly between the two states.
Cables were drilled under the River Murray, under all road or rail crossings and a number of significant Aboriginal heritage sites with advice from local communities. The interconnector sources power generated in Victoria, the Snowy Region and New South Wales. It can also source power generated in SA for transmission to the eastern states.
The project has already received two major Australian environment awards – the Royal Australian Planning Institute (SA) award for environmental planning and conservation and the Case EARTH Award (Vic) for minimising environmental impacts during cable laying.