Queensland New South Wales Interconnector

Queensland New South Wales Interconnector

The Queensland New South Wales Interconnector (QNI Connect) is a proposed transmission line that would connect the New England REZ Transmission Link to Queensland. It will be delivered by Powerlink in Queensland and Transgrid in NSW. The line would run appoximately 300 kilometres in NSW and 300 kilometres in Queensland. 

Options have been proposed for 500 kV and 300 kV routes. The current preferred option by AEMO includes the following scope: 

  • a new 330 kV double-circuit line from locality of New England Hub 5 to Dumaresq to Bulli Creek to Braemar
  • new 330/275 kV transformers at Braemar, and
  • 330 kV Line shunt reactors at New England Hub 5, Dumaresq, Bulli Creek, and Braemar for the 330 kV lines between New England Hub 5 and Braemar (via Dumaresq and Bulli Creek).

This option is expected to add an additional network capacity of 1,260 MW in the north and 1,700 MW in the south. 

AEMO's draft 2024 ISP has indicated that the earliest feasible delivery data is FY2030-31.

QNI Connect is a seperate project from QNI Connect Minor, which was completed in 2022.

Key Dates

Jun 2034 Expected Construction Completion


Dec 2021 AEMO's Draft 2022 ISP refers to QNI Connect for the first time. It identifies that the ISP project referred to as “QNI Connect” in the 2022 ISP is a smaller revised version of the QNI Medium and QNI Large projects listed as future ISP projects in the 2020 ISP. Much of the infrastructure intended in those projects was included in the New England REZ Transmission Link.
Jun 2022 The 2022 ISP identifies that QNI connect would enable approximately 1,000 MW transfer capacity between southern Queensland and New England. The cost was identified at $1.25 billion and the timing in the most likely scenario was FY2032-33, with earliest delivery date of FY2028-29.
Jun 2023 Transgrid releases 2024 ISP Preparatory Activities for QNI Connect. It identifies that there are four options for the NSW component of the project, differing between kilovolt capacity, and single or double circuits. The report also confirms that the estimated distance would be around 300 kilometres in NSW and 300 kilometres in Queensland.
Dec 2023 The Draft 2024 ISP confirms AEMO's preferred option is Option 2, which would be a 330 kV double-circuit line from New England to Braemer. The estimated cost for this option was $2.52 billion (with a 50 per cent margin of error) and the estimated optimal timing for delivery was FY2033-24, with the earliest feasible delivery date being FY2030-2031.
Estimated Total Cost
Procurement approach
Unconfirmed |
New South Wales | Queensland |