The National Electricity Market Management Company Limited (NEMMCO) was established in 1996 to administer and manage the Australian

National Electricity Market The National Electricity Market (NEM) is an arrangement in Australia's electricity sector for the connection of the electricity transmission grids of the eastern and southern Australia states and territories to create a cross-state wholesale elec ...

(NEM). It was the market operator for the NEM. The governments of

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

, the

Australian Capital Territory The Australian Capital Territory (commonly abbreviated as ACT), known as the Federal Capital Territory (FCT) until 1938, is a landlocked federal territory of Australia containing the national capital Canberra and some surrounding townships. ...

Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...

South Australia South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...

and

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

were members of NEMMCO; and each nominated a director to the NEMMCO board. NEMMCO was a company under Corporations law. It operated on a break-even basis by recovering the costs of operating the NEM and running the organisation by levying fees against market participants. The fees were complex, and comprised both fixed and variable components that took into account the type of participant and their share of trade in the market. The structure of fees payable to NEMMCO was determined periodically, while the actual fee levels were set annually. NEMMCO managed the market and power system from two control centres in different states. Both centres operated around the clock, and were equipped with identical communication and information technology systems. The entire NEM, or individual regions within it, could be operated from either or both centres. This arrangement was a means of ensuring continuous supply despite the risks that

natural disasters A natural disaster is "the negative impact following an actual occurrence of natural hazard in the event that it significantly harms a community". A natural disaster can cause loss of life or damage property, and typically leaves some econo ...

or other events presented, and provided NEMMCO with the flexibility to respond quickly to dramatic changes in the market or the power system. On 1 July 2009, NEMMCO was succeeded by the Australian Energy Market Operator.

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NEMMCO
(obsolete) {{DEFAULTSORT:Nemmco Electricity markets Electric power companies of Australia Electric power in Australia Energy companies established in 1996 Energy companies disestablished in 2009 Australian companies established in 1996 Australian companies disestablished in 2009

See also

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