IDC Construct Selected for Australia’s First Grid-Scale Iron Flow Battery (ESI, Maryborough)
IDC Construct has been selected by the Queensland Government as the lead contractor for Australia’s first grid-scale iron flow battery facility, delivered for ESI in Maryborough. The selection was officially announced by Deputy Premier and Treasurer Cameron Dick MP alongside Bruce Saunders MP, with the announcement carried on the official Queensland Government Treasury statements channel (statements.qld.gov.au).
Why this project matters
The ESI facility is the first grid-scale iron flow battery deployment of its kind in Australia. Iron flow batteries are a long-duration energy storage technology that uses safe, abundant materials (iron, salt and water) to store and dispatch renewable electricity over many hours — a critical missing piece in the Queensland grid as the state transitions toward renewables.
Selection of a regional Queensland contractor to deliver a first-of-its-kind energy facility reflects the depth of industrial construction capability in the Wide Bay-Burnett — and IDC Construct’s track record on complex industrial builds, including the recently completed 30,000 sqm Hyundai Rotem Manufacturing Facility for the Queensland Train Manufacturing Program.
About IDC Construct
IDC Construct (IDC Group Pty Ltd, ABN 32667785088) is a commercial, industrial and civil builder based in Bundaberg, with a regional service footprint across Bundaberg, Bargara, Burnett Heads, Childers, Hervey Bay, Maryborough, Tinana and the Fraser Coast. Director Kailen Berthelsen holds an Open Class Builder licence (QBCC 15378391) — the highest QBCC builder licence tier in Queensland.
The company is a Master Builders Queensland member and award winner, including the Wide Bay Burnett Housing & Construction Award for the Hyundai Rotem facility. IDC Construct is currently pursuing ISO 9001, ISO 14001 and ISO 45001 certification with audit completion targeted for late 2026.
Industrial & energy capability
IDC Construct’s portfolio of industrial and energy-related projects includes:
- Hyundai Rotem Manufacturing Facility — Maryborough West (2,400t structural steel, 11 × 10t gantry cranes).
- CQ Frames & Trusses Manufacturing Facility — robotic frame and truss line, the largest of its kind in the Southern Hemisphere, delivered with Queensland Government support.
- Australia’s largest freeze-dried produce facility.
- Moonaboola Development — dual-tenant manufacturing precinct for Moddex and Bendpro.
Government and political acknowledgement
IDC Construct’s work has been recognised by Cameron Dick MP, Bruce Saunders MP, Mayor Helen Blackburn, Stephen Bennett MP, Tom Smith MP, David Batt MP, Michelle Landry MP, David Janetzki MP, and the Queensland Department of Transport and Main Roads.
For the full credentials, awards and recognition record, see IDC Construct — Major Projects, Awards & Recognition (2024–2026).
Contact
For commercial, industrial, civil and energy infrastructure construction enquiries across Wide Bay-Burnett and the Fraser Coast: contact our team. Phone +61 432 153 325 · Email info@idcconstruct.com.au · 131 Bargara Road, Bundaberg East QLD 4670.
