Northern Transmission Project

ElectraNet is exploring the best way to expand South Australia’s high-voltage electricity network to meet growing demand and unlock future opportunities.

The Northern Transmission Project (known as NTx) has been established to investigate options for a potential major network upgrade that would support the State’s economic growth, enable new electricity generation projects and strengthen transmission links for industrial expansion.

With South Australia’s electricity needs growing, we must enhance network capacity to ensure a reliable, affordable and sustainable supply — now and into the future.

Currently in early planning, the project is investigating options to construct a new transmission line, to be built in two sections:

  • NTx South, which will run from the Mid North (Bundey substation near Robertstown) to Greater Adelaide
  • NTx North, which will run from the Mid North (Bundey substation near Robertstown) to Whyalla (Cultana East substation).

Early engagement with stakeholders and communities is underway to understand changing energy needs, priorities and concerns. This feedback will shape early planning and route selection as part of the Regulatory Investment Test for Transmission (RIT-T), a cost-benefit analysis to ensure NTx delivers the best value for consumers, balancing costs with long-term economic and energy benefits.

Project benefits

Powering growth

Enabling industrial and economic development by expanding energy transfer capacity into Adelaide and to the State’s North.

Secure supply

Enhancing energy security by providing an alternate transmission route to Adelaide, reducing the risk of disruptions from extreme weather events, such as bushfires.

Thriving regions

Supporting economic growth and opportunities for new investment and jobs in regional South Australia.

Net-zero future

Supporting South Australia to achieve 100% net renewable energy as we continue our transition away from fossil fuels for electricity generation.

Local benefits

Working with impacted communities to identify a range of shared benefits that align with local priorities and can be delivered over time.

Clean energy

Accelerating renewable energy adoption by improving the flow of wind and solar power into the grid, ensuring greater access to clean energy.

Latest news

Draft What We Heard Report Volume 3 now available

Our latest Draft What We Heard Report Volume 3 is now available for community review and feedback. 

The report captures feedback received during recent engagements in the new fifth corridor in NTx South. We’re inviting the community to review the draft report before it is finalised.  

Read more here

Community events scheduled in Corridor 5

In-person community information sessions have been scheduled for community members located in or near the new fifth corridor, with details on the dates and locations available on our events page

Community engagement update

Recent engagement activities for the new NTx South corridor area have provided valuable feedback. The online survey has now closed, while our interactive map remains available for anyone wishing to provide additional location-based information and local feedback.

We are now reviewing the feedback received and will release an updated What We Heard Report in coming weeks.

Read more here.

ISP released

The Australian Energy Market Operator has released its 2026 Integrated System Plan (ISP), which identifies NTx as a future transmission project on the Optimal Development Path.

We are now reviewing the ISP timing, along with the submissions made to the PADR and the community feedback gathered through our engagement processes, before reporting back to the community on what this might mean for the timing of NTx.  

Latest news

Latest news

Draft What We Heard Report Volume 3 now available

Our latest Draft What We Heard Report Volume 3 is now available for community review and feedback. 

The report captures feedback received during recent engagements in the new fifth corridor in NTx South. We’re inviting the community to review the draft report before it is finalised.  

Read more here

Community events scheduled in Corridor 5

In-person community information sessions have been scheduled for community members located in or near the new fifth corridor, with details on the dates and locations available on our events page

Community engagement update

Recent engagement activities for the new NTx South corridor area have provided valuable feedback. The online survey has now closed, while our interactive map remains available for anyone wishing to provide additional location-based information and local feedback.

We are now reviewing the feedback received and will release an updated What We Heard Report in coming weeks.

Read more here.

ISP released

The Australian Energy Market Operator has released its 2026 Integrated System Plan (ISP), which identifies NTx as a future transmission project on the Optimal Development Path.

We are now reviewing the ISP timing, along with the submissions made to the PADR and the community feedback gathered through our engagement processes, before reporting back to the community on what this might mean for the timing of NTx.  

Working with our communities

ElectraNet is committed to building strong long-term relationships with our stakeholders, working closely with local communities, landholders, businesses and industries, including agriculture and renewable energy.

To ensure we achieve balanced solutions that support both local priorities and South Australia’s energy future, a detailed engagement process is underway to shape early planning on NTx.

Engagement will continue throughout the project lifecycle, with opportunities to provide targeted feedback at specific intervals and ongoing dialogue maintained throughout.

What you tell us will guide our work, helping us to minimise potential disruptions and maximise project benefits.

Find out more

Your input

Interactive map

Route development

FAQ

Timing

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ElectraNet is committed to keeping communities informed and we welcome your feedback and insights.

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Register for updates

Keep informed about the project, sign up for email updates.

At ElectraNet, we are serious about protecting Personal Information. View our Privacy Policy for more information.