Calvale to Calliope River Transmission Line Reinforcement Project

Project overview

Powerlink is planning for a new transmission line between the Calvale Substation (near Callide Power Station) and the Calliope River Substation (near Gladstone). 

The project will strengthen and increase capacity of the transmission network in the region.   

At 87km long, the new double circuit 275kV transmission line will mostly be constructed in existing spare easements, beside existing transmission lines. 

The project also involves grid connections at both substations, as well as expanding the Calliope River Substation to accommodate the new infrastructure and increased energy needs.   

Status

Government approvals update   

In accordance with Section 98(1)(c) of the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act), Powerlink is now inviting public comment on the project’s Draft Public Environment Report (PER). The public comment period is open from Thursday 12 February 2026 to 5pm on Wednesday 11 March 2026.  

This is part of our application for environmental approval under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). The EPBC Act is Australia’s national environmental law. It provides a legal framework to protect and manage nine specific Matters of National Environmental Significance (MNES). 

You can view the draft PER and all appendices: 

• On our online Community Hub, under the ‘Resources’ menu on the right side of the page
• By visiting the below venues where electronic and hard copies are available for viewing: 
• Gladstone City Library, 39 Goondoon Street, Gladstone Central 
• State Library of Queensland, Stanley Place, South Brisbane. 

Make a submission 

You can make a submission about any part of the draft PER, before 5pm on Wednesday 11 March 2026:  

• By email to [email protected] 
• By post to: Powerlink Queensland, Attn: Project Engagement Team re EPBC 2024/10044, PO Box 1193, Virginia QLD 4014 

Please contact us if you would like to request sections of the Draft PER in an alternative format. Persons with special needs (including those for whom English is a second language or those with a vision impairment) may contact Powerlink for assistance in accessing the documentation via email at [email protected]. 

Visit our Community Hub to find out more and get involved.  

Get involved

Head over to our Community Hub for the latest updates, Frequently Asked Questions, current and previous newsletters and technical reports. 

Visit our Community Hub

Powerlink is committed to ongoing genuine and timely engagement to ensure we deliver positive outcomes for landholders, Traditional Owner groups, local communities, other stakeholders and the environment where our transmission infrastructure is located.     

You can contact us any time about the Calvale to Calliope River Transmission Line Reinforcement Project by:     

• Completing the online feedback form
• Emailing: [email protected] 
• Phoning 1800 635 369 (Monday to Friday, 7.30am – 5pm).    

Landholders along the recommended corridor are also welcome to contact their Landholder Relations Advisor. Please refer to contact details on the right of this page.