This major upgrade to the transmission network will boost interstate power flows and help deliver safe, reliable, lowest cost electricity to customers.
Read our VNI Upgrade fact sheet.
An electricity interconnector is a connection that allows power to flow in both directions between regions in the National Electricity Market, providing access to a larger number of electricity generators.
Upgrading the Victoria – New South Wales Interconnector (VNI) will allow cheaper generation to be transferred between the two states. This will help lower the cost of wholesale electricity across the National Electricity Market and put downward pressure on customer bills.
It will also:
The project has been identified as a priority by both the Australian Energy Market Operator in the 2020 Integrated System Plan and by the State Government in the NSW Transmission Infrastructure Strategy.
TransGrid plans to install ‘smart wires’ power flow controller technology within Yass substation in NSW and our new Stockdill substation in the ACT. Stockdill substation is currently under construction and due for completion in October 2020. Read more about the Stockdill substation project.
‘Smart wires’ technology enables the real-time control of electricity flows along power lines. The system detects areas of congestion in the network and automatically redirects flows to less congested lines. It will help unlock spare transmission capacity, allowing more energy to be transferred between Victoria and NSW.
AEMO will undertake complementary upgrades to the transmission network in Victoria.
TransGrid and AEMO received nine public submissions on the PSCR and six on the PADR. Submissions received (and approved for publication by proponents) can be viewed on the AEMO website.
TransGrid will submit a Contingent Project Application to the Australian Energy Regulator seeking approval to vary TransGrid’s current 2018-23 Revenue Determination by an amount that reflects the prudent and efficient costs of the NSW component of the project.