The Gladstone PTI comprises proposed transmission works required to ensure ongoing reliability and security of supply and:

• meet the forecast electrical load in anticipation of Gladstone Power Station’s closure
• support the decarbonisation of major industries
• compensate for loss of essential system services, such as inertia, system strength and voltage control capability, following the closure of Gladstone Power Station.

The PTI framework is a process to assess credible investment options to meet an identified need.

In the Final Assessment Report, Powerlink has made a recommendation to the Queensland Government for implementation.

• constructing a new double circuit transmission line between Calvale and Calliope River substations, switched through a new substation located at Gladstone West;
• establishing a 3rd 275/132kV transformer at Calliope River Substation;
• constructing a new 275kV high-capacity double circuit transmission line between Bouldercombe and Larcom Creek substations switched through a new Gladstone West Substation; and
• investment in assets to compensate for the loss of essential system services in the Gladstone area when Gladstone Power Station closes, including a mixture of network and non-network components.

PTI Expert Panel

A PTI Expert Panel has been convened to advise Powerlink and challenge assumptions in recommendations and advice. The panel operates independently and will use its technical and regulatory expertise in the energy sector to reflect the long-term interests of customers.

Reporting obligations

As detailed in the Final Assessment Report, Powerlink has:

• engaged with the Queensland Energy System Advisory Board (QESAB) and other stakeholders
• summarised non-confidential submissions received and Powerlink’s responses in the Final Assessment Report
• published non-confidential submissions.

Get involved

Powerlink completed a public consultation on the Draft Assessment Report for the Gladstone PTI from 10 April to 15 May 2025.

Powerlink has now published the Final Assessment Report.

To continue to receive updates, please use the 'Follow' button at the top of this page.

We hosted a webinar on 28 April for those interested in the Gladstone PTI consultation and to support stakeholders in preparing submissions.

You can access the key resources from the session:

• Webinar recording
• Presentation slides
• Responses to audience questions

Public consultation period is now closed.

General submissions

Powerlink invited submissions from all interested parties including market participants, energy market bodies, potential non-network providers and customer representatives, on the preferred option presented and the matters addressed in the draft report.

During the consultation on the Draft Assessment Report, Powerlink received 11 general submissions of which three were non-confidential.

For the earlier consultation on the Draft Submission Paper, 7 general submissions were received of which three were non-confidential.

Submissions can be accessed in the document library on this page.

Non-Network Solution Providers

Powerlink invited proposals from potential non-network solution providers to address the voltage control component of the third element of the identified need, in part or in full, within the required timeframe.

Full details are available in the Draft and Final Assessment Reports.

Community member? If you are a community member, you can also sign up for community-specific engagement opportunities via our project pages.