The October 2025 release of the Queensland Energy Roadmap has highlighted the importance of Powerlink delivering vital reinforcement of the electricity transmission network in Central Queensland.

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 to progress.

Powerlink’s continued development of the Gladstone Project is targeting the following delivery timeframes:

• Calvale to Calliope River transmission line by March 2029.
• Gladstone West Substation by mid-2029.
• Bouldercombe to Larcom Creek transmission line by mid-2030.

We continue to work closely with the Queensland Government and the AER as Suitably Qualified Persons under the Priority Transmission Investment process to progress activities.

In addition to transmission reinforcements being undertaken through the PTI process, Powerlink also needs to install synchronous condensers in Central Queensland for system strength purposes.

The synchronous condensers and the Calvale to Calliope River Transmission Line Reinforcement Project are the two most critical projects to be completed in advance of the potential closure of the Gladstone Power Station (GPS).

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

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Powerlink has completed two public consultations on the Draft Submission and Draft Assessment Report respectively. No further public consultations are upcoming.

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

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.