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 electricity market. The Australian Energy Market Commission develops and maintains the Australian National Electricity Rules (NER), which have the force of law in the states and territories participating in NEM. The Rules are enforced by the Australian Energy Regulator. The day-to-day management of NEM is performed by the Australian Energy Market Operator.
Snowy Hydro Limited is an electricity generation and retailing company in Australia that owns, manages, and maintains the Snowy Mountains Hydro-electric Scheme that consists of nine hydro-electric power stations and sixteen large dams connected by 145 kilometres (90 mi) of tunnels and 80 kilometres (50 mi) of aqueducts located mainly in the Kosciuszko National Park. Snowy Hydro also owns and operates two gas-fired power stations in Victoria and one in New South Wales, three diesel power stations in South Australia and owns two electricity retailing businesses, Red Energy and Lumo Energy.
EnergyAustralia was a state–owned enterprise of the Government of New South Wales, Australia. It was electricity and gas supplier and retailer which primarily supplied the Sydney, Newcastle and Central Coast areas of New South Wales. Since market deregulation, it increased its focus on retail supply opportunities in electricity and gas to the Victorian market and electricity in the deregulated south–east corner of Queensland.
National Grid plc is a British multinational electricity and gas utility company headquartered in London, England. Its principal activities are in the United Kingdom, where it owns and operates electricity and natural gas transmission networks, and in the Northeastern United States, where as well as operating transmission networks, the company produces and supplies electricity and gas, providing both to customers in New York and Massachusetts.
EnergyAustralia is an electricity generation, electricity and gas retailing private company in Australia. It is one of the "big three" retailers in the National Electricity Market. It generates electricity primarily using coal fired generation, at the Yallourn Power Station in Victoria, and the Mount Piper Power Station in New South Wales. 10% of its generation is from wind power, 32% from gas, and 58% from coal. It is Australia's second biggest emitter of greenhouse gases, after AGL Energy. As a loss making company in 2023, its parent in Hong Kong, CLP Group, has stated that it is looking for partners for renewable energy investment, however as of this time, there were no plans to build new renewable energy itself.
Country Energy, an Australian energy retail subsidiary of Origin Energy, provides natural gas and electricity to retail customers in New South Wales, Victoria, Queensland, South Australia and the Australian Capital Territory.. Since its establishment in 2001 and until 28 February 2011, Country Energy was owned by the Government of New South Wales.
Energex is an Australian-based wholly Queensland Government owned electricity company distributing power to 1.5 million homes and businesses in South East Queensland. The boundaries of the company’s distribution area stretch from Coolangatta in the south to Gympie in the north and as far west as the foothills of the Toowoomba range.
Ergon Energy Network is a subsidiary company of Energy Queensland Limited (EQL) a Government owned corporation owned by the Government of Queensland. It distributes electricity to around 763,000 customers across Queensland, excluding South East Queensland through a distribution network regulated by the Australian Energy Regulator (AER) who set the prices that Ergon is allowed to charge for distribution.
Alinta Limited was an Australian energy infrastructure company. It has grown from a small, Western Australia-based gas distributor and retailer to the largest energy infrastructure company in Australia. It was bought in 2007 by a consortium including Singapore Power and various parties which include the now defunct Babcock & Brown funds.
Origin Energy Ltd is an ASX listed public company with headquarters in Sydney. It is a major integrated electricity generator, and electricity and natural gas retailer. It operates Eraring Power Station, Australia’s largest coal-fired power station, in New South Wales, which it plans to close in 2025. In 2022, it was Australia's fourth largest climate polluter. It owns 20% of Octopus Energy, a UK renewable energy retailer, a stake potentially worth billions of dollars.
Jackgreen Energy was an Australian electricity retailer. Before the company collapsed in late 2009, it was Australia's largest specialist renewable energy retailer, with around 100 employees, and 75,000 customers. In 2007 Jackgreen purchased Easy Being Green, a carbon offset program. Jackgreen was suspended from the National Electricity Market on 18 December 2009 by the independent market operator. Before its collapse, Jackgreen's products incorporated a percentage component of green energy, ranging between 10% and 100%.
The Electricity Commission of New South Wales, sometimes called Elcom, was a statutory authority responsible for electricity generation and its bulk transmission throughout New South Wales, Australia. The commission was established on 22 May 1950 by the Electricity Commission Act 1950 to take control of power generation in the State. The commission acquired the power stations and main transmission lines of the four major supply authorities: Southern Electricity Supply, Sydney County Council, the Department of Railways and the Electric Light and Power Supply Corporation Ltd, also known as the Balmain Electric Light Company, the owner and operator of Balmain Power Station. The commission was responsible for the centralised co-ordination of electricity generation and transmission in the State, and some local councils continued to be distributors of electricity only.
Transgrid is the manager and operator of the high voltage electricity transmission network in New South Wales and the Australian Capital Territory, Australia, and is part of the National Electricity Market (NEM). The company's offices are located in Sydney, Newcastle, Orange, Tamworth, Wagga, and Yass.
Prospect Electricity was the state-owned corporation owned by the Government of New South Wales, Australia, that was responsible for retailing electricity to consumers in the Greater Western Sydney region between 1991 and 1996.
SGSP (Australia) Assets Pty Ltd (SGSPAA), trading as Jemena, is an Australian company that owns, manages or operates energy infrastructure assets in the eastern states of Australia including Queensland and New South Wales, and gas pipelines and gas and electricity distribution networks in Victoria and the Northern Territory. It is 60% owned by State Grid Corporation of China and 40% by Singapore Power.
Electricity North West Limited is a British electricity distribution network operator, responsible for the administration and maintenance of the network, that distributes electricity to the North West of England excluding Merseyside and parts of Cheshire.
Brookfield Infrastructure Partners L.P. is a publicly traded limited partnership with corporate headquarters in Toronto, Canada, that engages in the acquisition and management of infrastructure assets on a global basis.
Ausgrid is an electricity distribution company which owns, maintains and operates the electrical networks supplying 1.8 million customers servicing more than 4 million people in Sydney, the Central Coast and Hunter regions of New South Wales, Australia. It was formed in 2011 from the previously state-owned energy retailer/distributor, EnergyAustralia, when the retail division of the company, along with the EnergyAustralia brand, was sold by the Government of New South Wales, and the remainder renamed Ausgrid.
Endeavour Energy is the operator of the electrical distribution network for Greater Western Sydney, the Blue Mountains, the Southern Highlands and the Illawarra region of NSW, Australia.
The New South Wales Metropolitan Rail Area (MRA) is the government-operated railway network centred on Sydney and bounded by Newcastle Interchange in the north, Bowenfels in the west, and Glenlee and Bomaderry in the south. The MRA contains the entirety of the state's electrified rail network. The MRA is owned by Transport Asset Holding Entity and maintained by Sydney Trains.
