This attachment provides diagrams showing a high-level overview of the main transmission networks and interconnections for each region of the National Electricity Market (NEM) high-voltage transmission network. . The Australian National Electricity Market is a complex, sophisticated, manually operated electricity generation, transmission, distribution, and wholesale network situated predominantly on the East Coast of Australia. The electricity network includes generators (such as wind farms, solar farms, gas-fired power stations and coal-fired power stations), the transmission network which carries and transforms bulk. .
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Electricity can be transported over alternating current (AC) or direct current (DC) networks. Most of Australia's transmission network is AC, whereby the power flow over individual elements of the network cannot be directly controlled.
Most of Australia's transmission network is AC, whereby the power flow over individual elements of the network cannot be directly controlled. Instead, electrical power (which is injected at one point and withdrawn at another) flows over all possible paths between the two points.
Together, these networks have traditionally transported electricity from generators to residential, commercial and industrial customers. However, Australia's energy system is rapidly changing and affecting how electricity networks are used.
An overview of Australia's electricity transmission networks (on photo: Transmission towers at 137 metres above sea level, Mt Cooper in Bundoora Park, the highest point in the metropolitan Melbourne area; by Natasha Abrahams) The transmission networks in Western Australia and the Northern Territory do not interconnect with the NEM or each other.