project Specifics
Reliable 66/11kV substation enabling Gladstone port expansion and resilience
To support the expanding Gladstone port and deliver a dependable supply to the RG Tanna Coal Terminal, Our Team engineered the Port Curtis 66/11kV Substation adjacent to the terminal.
The design incorporated redundancy and future scalability, including 2 × 35 MVA transformers and dual feeders from the Gladstone North 132/66kV Bulk Supply Substation. Documentation was staged to match an accelerated programme and contractor methodology.
Result: a robust, scalable supply delivering reliable power to critical port operations.
About the Port Curtis Substation
The substation provides medium-voltage distribution to key port facilities, ensuring continuous, high-availability power for coal terminal operations and future growth. Its configuration includes redundant transformers and provision to double capacity when required. Supply is secured via dual 132/66kV feeders from the Gladstone North bulk supply, enhancing network reliability for this critical piece of port infrastructure.
What We Delivered
Services:
- Primary design and layouts
- Switchyard materials selection
- Earthing & lightning design
- Secondary systems design
- Protection scheme
- Auxiliary power systems
- Full detailed drawings
- SCADA & communication panels
- Protection relay settings
Delivery Method:
- Design consultant for constructor
Outcome
A fit-for-purpose substation delivered to a tight schedule, providing reliable and maintainable supply to the port. Redundancy and clear upgrade pathways give the client confidence in ongoing operations and future capacity increases.

A Welcon Project
This project was completed by our Welcon Team.
Since September 2024, Welcon Technologies has become part of SGA in a strategic move that leverages the strengths of both companies.
Welcon’s Team
