South Australia is on the cusp of a once-in-a-generation growth and jobs opportunity, as industries such as mining, manufacturing and data centres look to expand, attracted by the state’s strong energy resources and valuable minerals. As these industries grow, demand for electricity is set to increase significantly. This means our transmission network’s capacity needs to increase too, ensuring more power can flow where it’s needed.
The Commonwealth Department of Climate Change, Energy, the Environment and Water has also recognised NTx as a priority energy project.
ElectraNet has commenced a rigorous cost-benefit analysis of the project, known as the Regulatory Investment Test for Transmission (RIT-T), to determine whether NTx delivers the best value for electricity consumers, balancing costs with long-term economic and energy benefits.
Comprehensive project investigations and engagement are continuing to inform early planning and route development as part of the RIT-T, ensuring feedback on local priorities and concerns are included in our assessments.
The project will only proceed if it can be economically justified as beneficial to customers, based on the RIT-T assessment, which is verified by independent approval from the Australian Energy Regulator (AER).
We are led by these Guiding Principles as we work closely with our stakeholders and communities to identify and understand the issues, aspirations and local priorities you care about.
Your feedback is valued and will used to inform our project planning and decision-making.
Respectful and meaningful engagement
We engage with stakeholders and communities to understand what matters to you and to inform our decision-making
Protecting land and place
Delivering tangible benefits
Transparent decision-making
Value for money
Viable transmission line corridors will be identified through collaboration with stakeholders, taking into account a wide range of constraints and opportunities. These include potential impacts on the environment, cultural heritage, landholders, local communities and businesses.
The exact route will be further refined by:
ElectraNet will also undergo a rigorous consultation process, where community feedback will be a key consideration, with clear reporting on how it has influenced route selection.
We remain committed to working closely with local communities, landholders, businesses and industries, including agriculture and new electricity generation projects renewable energy.
As we undertake a route development process, we will work closely with stakeholders and communities to identify issues, aspirations and local priorities to inform our work.
To identify the preferred path for the potential new transmission lines, we will follow an established step-by-step process that starts wide, looking at broad areas where the infrastructure could be built.
We gradually narrow the area down to identify a specific route, based on technical assessments, economic, environmental studies and ongoing stakeholder input, which is sought at every stage of the route development process.
The map below shows the full area being considered for the NTx project. This includes a vast study area, which was based on energy demand, system planning, renewable energy zones (REZs) and economic benefits. The study area was reduced to a series of corridors for further investigation, informed by early stakeholder feedback.
A new corridor area was introduced in April 2026, following feedback from communities, particularly landholders and farming groups, suggesting areas east of Goyder’s Line could reduce impacts on high-value cropping land.
ElectraNet is the owner and operator of South Australia’s electricity transmission network, which transports energy from large generation sources to where it’s needed to serve electricity customers.
Our infrastructure underpins the State’s economic growth by supporting increasing industrial energy demands while enabling the transition to a cleaner energy future.
With a majority of our electricity already sourced from renewables and a target of 100% net renewable energy, we’re committed to strengthening the grid, maintaining security of supply and delivering the transmission solutions needed to power the State’s industries and economy.
ElectraNet is responsible for South Australia’s electricity transmission network, looking after its design and operations to ensure our communities and industries have access to affordable, reliable and sustainable electricity. In simple terms, we are responsible for the high voltage power lines that are often seen in regional SA.
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