Calvale to Calliope River Transmission Line Reinforcement Project

Project overview

Powerlink is constructing 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 upgrades at both substations to accommodate the new infrastructure and increased energy needs.   

Status

The project has now received its Ministerial Infrastructure Designation (MID), following consultation in late 2025 and assessment by the Department of State Development, Infrastructure and Planning. Notice of the designation was published in the Queensland Government Gazette on 24 July 2026.  

This project also needed approval under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). In June 2026, the project received its Notification of Approval Decision from the Department of Climate Change, Energy, the Environment and Water (DCCEEW).   

You can view project reports and information materials on our Community Hub under the ‘Resources’ menu. 

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.