What is 'the grid'?
‘The grid’ is how we refer to the complex transmission and distribution network that carries electricity from power stations across Australia to your home or business. A basic overview of how the grid works is shown in points 1 - 6 below.
Australia’s eastern and southern states have one of the largest interconnected ‘grids’ or power systems in the world, spanning 4,500 kilometres. This grid services Queensland, New South Wales, the Australian Capital Territory, Victoria, South Australia and Tasmania. The wholesale market for electricity supplied via this grid is managed through the National Electricity Market (NEM).
In Western Australia, the Northern Territory and Mount Isa in Queensland the transmission and distribution networks operate separately from the NEM and from each other.1