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 November 2025, the project’s Ministerial Infrastructure Designation (MID) Proposal Report was released for community consultation. This consultation is now closed. The Department of State Development, Infrastructure and Planning (DSDIP) will review all formal submissions and share key themes with Powerlink. 

We will provide an update in early 2026 summarising feedback, how it has been considered and next steps. 

This project also needs approval from the Federal Government under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). We have prepared a Public Environment Report for this, which we expect to be available for public comment in early 2026. 

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.