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Electric power distribution is the final stage in the delivery of electricity. Electricity is carried from the transmission system to individual consumers. Distribution substations connect to the transmission system and lower the transmission voltage to medium voltage ranging between 2 kV and 33 kV with the use of transformers. Primary distribution lines carry this medium voltage power to distribution transformers located near the customer's premises. Distribution transformers again lower the voltage to the utilization voltage used by lighting, industrial equipment and household appliances. Often several customers are supplied from one transformer through secondary distribution lines. Commercial and residential customers are connected to the secondary distribution lines through service drops. Customers demanding a much larger amount of power may be connected directly to the primary distribution level or the subtransmission level.
ATCO Ltd., operating as the ATCO Group, is a publicly-traded Canadian engineering, logistics and energy holding company based in Calgary, Alberta. ATCO's subsidiaries include electric utilities, natural gas production and distribution companies, and construction companies.
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.
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.
Vector Limited is a New Zealand energy company, which runs a portfolio of businesses delivering energy and communication services across Australasia and the Pacific. Its primary business is electricity distribution, along with distributing piped gas. It also has a bottled gas business, owns a fibre optic cable network, deploys electricity and gas meters, manages solar infrastructure projects and offers cybersecurity services and a data platform. It is also the parent company of HRV ventilation solutions.
The State Electricity Commission of Victoria is a government-owned renewable electricity investment enterprise in Victoria, Australia. Originally a major energy supplier in the state, the SEC was privatised in the 1990s before being revived in 2023 to invest in renewable energy and storage.
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.
The Victorian Energy Networks Corporation (VENCorp) was a Victorian State Government-owned entity established in December 1997 responsible for the efficient operation of gas and electricity industries in Victoria, Australia, within Victoria's privatised energy industries. It was funded by energy industry participants.
SA Power Networks is the principle electricity distributor in the state of South Australia, delivering electricity from high voltage transmission network connection points operated by ElectraNet. It is the successor to the Electricity Trust of South Australia.
Energy in Victoria, Australia is generated using a number of fuels or technologies, including coal, natural gas and renewable energy sources. Brown coal, historically, was the main primary energy source for the generation of electricity in the state, accounting for about 85% of electricity generation in 2008. The amount of coal-fired power has decreased significantly with the closure in 2017 of the Hazelwood power station which supplied around 20% of Victoria's electricity, and to a lesser extent with the exit of Anglesea power station in 2015. Brown coal is one of the largest contributors to Australia's total domestic greenhouse gas emissions and a source of controversy for the country. Australia is one of the highest polluters of greenhouse gas per capita in the world.
AusNet Services is an Australian energy delivery services business, owning and operating more than $11 billion of electricity and gas network assets. It is a privately held, and was formerly listed on the Australian Securities Exchange (ASX) and the Singapore Exchange (SGX). AusNet is currently owned by Australian Energy Holdings No 4 Pty Limited, a company controlled by Brookfield Asset Management. The co-investors include pension funds in Australia and Canada.
CK Infrastructure Holdings Limited (CKI) is the largest publicly listed infrastructure company in Hong Kong with diversified investments in energy infrastructure, transportation Infrastructure, water Infrastructure and infrastructure related business, parented by CK Hutchison Holdings, businessman Li Ka Shing's flagship company. It is a leading player in the global infrastructure arena in Hong Kong, Mainland China, Australia, New Zealand, the United Kingdom, Continental Europe and North America. The chairman is Victor Li, the elder son of Li Ka Shing.
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.
Énergir, formerly known as Gaz Métro, is an energy company with 520,000 customers in Quebec and the northeastern United States. It is the largest natural gas distribution company in Quebec, and, through subsidiaries, also produces electricity from wind. In the United States the company operates through subsidiaries in seventeen states, where it produces electricity from hydroelectric, wind and solar sources, in addition to being the leading electricity distributor and the sole natural gas distributor in Vermont.
The Australian Energy Market Operator (AEMO) performs an array of gas and electricity market, operational, development and planning functions. It manages the National Electricity Market (NEM), the Wholesale Electricity Market (WA) (WEM) and the Victorian gas transmission network. AEMO also facilitates electricity and gas full retail contestability, overseeing these retail markets in eastern and southern Australia. It is additionally responsible for national transmission planning for electricity and the establishment of a Short Term Trading Market (STTM) for gas.
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.
Wellington Electricity, registered as Wellington Electricity Lines Limited, is an electricity distribution company, based in Wellington, New Zealand.
Australian Gas Networks Limited, formerly Envestra Limited, is an Australian energy company that operates natural gas transmission pipelines and distribution networks in South Australia, Victoria, Queensland, New South Wales, and the Northern Territory. The company owns distribution systems in a number of towns and metropolitan areas including Adelaide, Brisbane, Melbourne, Rockhampton, Albury, Alice Springs, Bundaberg and Whyalla. It outsources the operation and management of the assets to the APA Group.
Multinet Gas Networks (MGN) is an Australian energy company and one of three Victorian natural gas distribution networks. MGN is one of three main companies that make up Australian Gas Infrastructure Group (AGIG), the other two being Australian Gas Networks (AGN) and Dampier to Bunbury Pipeline (DBP).
The Hoima–Kinyara–Kafu High Voltage Power Line is a planned high voltage electricity power line, connecting the high voltage substation at Kabaale, Buseruka sub-county, Hoima District, in the Western Region of Uganda to another high voltage substation at Kafu, Nakasongola District, in the Central Region of Uganda. On the way, the power line passes through Kinyara Sugar Works, in Masindi District.
