Ausgrid | Endeavour Energy | Essential Energy | Jemena | TransGrid 


Ausgrid is an energy services business that operates the largest electricity network in Australia. We deliver a safe and reliable electricity supply to more than 1.7 million homes and businesses in parts of Sydney, the Central Coast and the Hunter regions of New South Wales.

Our electricity network connects communities across more than 22,000 square kilometres. It includes almost 50,000 kilometres of powerlines, half a million power poles, 45 subtransmission substations, 189 zone substations and 31,000 distribution substations. Our operations include infrastructure construction and maintenance, customer connections, street lighting and metering and testing services.

For more information on Ausgrid, please visit

Endeavour Energy is a New South Wales based energy business with a proud history of serving some of Australia’s largest and fastest growing regional economies, including Western Sydney, the nation’s third largest regional economy.

Endeavour Energy’s network serves 2.4 million people spanning 24 800 square kilometres across Sydney’s Greater West, the Illawarra and South Coast, the Blue Mountains and Southern Highlands.

With an estimated value of $6 billion, this network is made up of over 180 major substations, more than 413,000 power poles and 30,000 distribution substations connected by 50,000 kilometres of underground cables and overhead cables.

For more information on Endeavour Energy, please visit

Essential Energy is a NSW Government-owned corporation with responsibility for building, operating and maintaining one of Australia’s largest electricity networks – delivering essential electricity network services to more than 800,000 homes and businesses across 95 per cent of NSW and parts of southern Queensland. In far west NSW, Essential Energy also operates water services for approximately 20,000 customers.

In today’s rapidly evolving energy ecosystem, Essential Energy is focussed on continuously improving safety performance for employees, contractors and the community and ensuring the reliability, security and efficiency of the network, while striving to deliver greatest value to customer

For more information on Essential Energy, please visit

Jemena owns and operates more than $9 billion worth of major energy and water transportation assets across the east coast of Australia.

With over a century’s experience and expertise in the utilities sector, Jemena delivers energy and water safely, reliably and affordably to millions of Australian households and businesses every day.

For more information on Jemena, please visit

TransGrid operates and manages the NSW and ACT high voltage electricity grid; connecting you to the energy you need 24/7. Every day we enable more than 3 million homes and businesses to access a safe, reliable and affordable supply of electricity.

Our electricity system transports electricity from sources of generation including wind, coal,  solar, gas and hydro to large industrial customers and to the distribution networks. It is then delivered to your home or business. Comprising 99 substations and more than 13,000 kilometres of high voltage transmission lines, cables, and interconnections with Queensland and Victoria, our grid plays a crucial role in supporting the economic growth of NSW and the ACT.

For more information on TransGrid, please visit


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