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The NEM spans Australia’s eastern and south-eastern coasts and comprises five interconnected states that also act as price regions: Queensland, New South Wales, South Australia, Victoria, and Tasmania. Western Australia and the Northern Territory are not connected to the NEM, primarily due to the very long distance between networks.
The NEM operates on one of the world’s longest interconnected power systems, stretching from Port Douglas in Queensland to Port Lincoln in South Australia and across the Bass Strait to Tasmania – a distance of around 5,000 kilometres. Tasmania is connected to the Mainland system by a ~290km long undersea cable called “Basslink”. This is the second largest undersea cable in the world.
The NEM has been operating for almost 18 years; delivering benefit to consumers through increased competition, efficiency and supply reliability.
| National Electricity Market at a glance |
| NEM Regions |
Queensland, New South Wales, Victoria, South Australia, Tasmania |
| Installed Capacity |
47,641 MW |
| Number of registered generators |
336 |
| Number of customers |
9.8 million |
| NEM turnover 2014-15 |
$8.2 billion |
| Total energy generated 2014-15 |
194,000 GWh |
| National maximum winter demand 2014-15 |
30,201 MW |
| National maximum summer demand 2014-15 |
29,472 MW |
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