EnergyConnect is Australia’s largest energy transmission project. It involves building a new 900km transmission line to connect the energy grids in New South Wales (NSW), Victoria (VIC) and South Australia (SA). This will help improve reliability and security of electricity supply and allow for future connections from renewable energy sources.

This Critical State Significant Infrastructure (CSSI) project is a key element of the Australian Energy Market Operator's Integrated System Plan for a more sustainable energy future.

With planning approvals obtained, construction is underway.

PEC benefit infographic

Latest update

Work on EnergyConnect West, between Buronga and the SA and VIC borders, is progressing well. Most of the transmission towers have been erected, and the Buronga substation is starting to take shape.

Our delivery partner, Elecnor Australia, will be carrying out the following activities on EnergyConnect East, at various locations between Buronga and Wagga Wagga, until the end of the year:

  • Removal of any vegetation necessary along the construction corridor
  • Minor road works
  • Creating vehicle entry and exit points for safe vehicle movements between roads and the construction corridor and worker camps
  • Preparing the reinforced concrete foundations for the transmission towers

For more information about EnergyConnect construction activities, visit EnergyConnect - Elecnor (secureenergyjv.com.au). You can also reach the project team by calling 1800 49 06 66 or by email at pec.community@elecnor.es

About EnergyConnect

Transgrid is partnering with ElectraNet to deliver EnergyConnect. ElectraNet is building the South Australian component and Transgrid is building in NSW. The NSW component, which is being delivered by our construction partner, Elecnor Australia, is split into two sections:

NSW-Western Section 

  • The NSW Government approved the EnergyConnect NSW–Western Section in September 2021.
  • Work involves building around 135km of new 330kV transmission line infrastructure between the SA border and Buronga and upgrading about 22km of existing 220kV transmission between the Buronga substation and the NSW/Victoria border.
  • Construction started in 2022 and work is underway at various locations across the western project area.

NSW-Eastern Section

  • In September 2022 the NSW Government approved the NSW-Eastern Sectionfollowing a thorough review of the project’s Environmental Impact Statement (EIS). The Commonwealth Government approved the NSW-Eastern Section in December 2022 following assessment by the Department of Climate Change, Energy, the Environment and Water. 
  • The Eastern section involves building around 375km of new 330kV transmission line between Buronga and the new Dinawan substation (Bundure), near Coleambally as well as just over 160km of 500kV transmission line infrastructure from Dinawan to Wagga Wagga. Upgrades are also currently underway at the existing substations at Buronga and Wagga Wagga.
  • Work started in mid-2023. Early works including site clearing, creating access roads and preparing foundation will continue until the end of the year, with the first transmission towers expected to go up from early 2024.

Project map

For a more detailed view of the EnergyConnect route, please visit our Interactive map.


  • ​Preliminary investigations and project scoping - Completed

    Regulatory approval received in July 2021

  • Community and landowner consultation - Completed

    From 2018

  • ​Project approvals - Completed

    Early 2020-mid 2022

  • Detailed design and site early works - Completed

    Early 2021 - mid 2022

  • Construction - In progress

    ​From 2022 (NSW Western section)

  • ​Project commissioning - Proposed

    From 2024

Supporting communities

We strive to create lasting benefits for the communities in which we work. Some key initiatives in place as part of EnergyConnect include:

  • Legacy 100: Transgrid and our construction partner, Elecnor, have launched this training initiative to boost skills in the power transmission sector across regional NSW. We’re seeking up to 100 candidates to complete qualifications in Transmission Line Construction. Applications are now open - Learn more
  • CSU Scholarships: Transgrid has partnered with Charles Sturt University to help train the nation’s next generation of engineers and address Australia’s infrastructure skills shortage. Visit the Transgrid Civil Engineering Scholarship page to learn more
  • Community Partnerships Program: This program offers grants of up to $5,000 for not-for-profit organisations that are local to our planning, operations, and major project areas. Applications are typically open in March and September each year. Visit our program page to learn more.
  • RDA partnership: Transgrid and Regional Development Australia (RDA) Riverina have formed Workforce Development Strategic Partnership to deliver jobs and skills boost as the region becomes a hub for the country’s renewable energy transformation. The partnership will secure substantial economic, employment and education benefits and support RDA Riverina’s key programs over the next three years.

Contact us


05 June 2023

Home-grown transmission line workforce to power Australia’s energy future

Australia’s largest transmission project has launched the nation’s first multi-million-dollar training initiative to boost skills in the power transmission sector across regional NSW.


28 March 2023

First towers rise on nation’s largest electricity transmission project

Construction of Australia’s largest transmission project critical to the country’s clean energy future has reached a major milestone with the first of 1,500 steel towers rising from the ground in the Far West of NSW.


07 February 2023

Transformer testing underway for project EnergyConnect

Australia’s largest electricity project, EnergyConnect, has taken another step forward with the testing underway on new transformers which will be installed as part of the project.

Leader in Sustainability

EnergyConnect becomes a leader in sustainability achieving a Leading Infrastructure Sustainability Council Design rating

Watch here