QNI project progresses following regulator determination on RIT-T


The project to upgrade the current Queensland NSW Interconnector, increasing the transmission capacity between the two states, has advanced today following the decision by the Australian Energy Regulator (AER) to approve the Regulatory Investment Test for Transmission (RIT-T).

Executive Manager of Works Delivery Michael Gatt said TransGrid welcomed the Regulator’s determination which supports the options assessment, costs and net benefits of the QNI project.

“The QNI upgrade is important because it will increase the capacity to share electricity between Queensland and New South Wales and reduce current and forecast network constraints,” said Mr Gatt.

“It will ensure greater reliability of lowest cost electricity, as we enable more efficient sharing on the NEM and introduce more innovative technology to the system. The project is expected to provide net benefits of $170 million to electricity customers and producers,” he said.

TransGrid is upgrading the 20 year old transmission lines and three substations at Tamworth, Dumaresq and Armidale.

“It will allow 460MW more power to transfer into Queensland and 190MW more into New South Wales and the ACT when it’s needed and it will link customers to the National Energy Market.

TransGrid began working with Queensland transmission business Powerlink to initiate the RIT T process in November 2018 and a number of network and non-network options were considered.

The project has been supported by the Australian and NSW Governments which have provided joint-underwriting to enable TransGrid to accelerate the delivery of the upgrade.

Mr Gatt says early works have commenced on the upgrade project which is expected to be delivered in September, 2021.

“TransGrid is already working to deliver the upgrade, conducting environmental, geotechnical and site surveys and engaging with communities along the existing transmission line corridor.”

For more information about the project, visit: www.transgrid.com.au/QNI

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