Community Update | February 2025
Halys Battery Energy Storage System (BESS) Important Akaysha Energy is committed to the delivery, development and deployment of large-scale batteries and renewables around the world. We are proposing to develop a large-scale Battery Energy Storage System (BESS) at Ellesmere, Queensland.
This critical piece of energy infrastructure will help secure the energy supply in Queensland, by providing storage of excess energy generated during off peak hours for use during high demand periods.
What is a Battery Energy Storage System?
Where will the BESS be located, and what is its capacity?
The Halys BESS functions as a robust, rechargeable battery for the power grid. It captures excess energy from various sources from the grid, including solar and wind, to store for later use. This stored energy can be rapidly released back into the grid during periods of high demand or when renewable generation is low, helping to balance supply and demand and ensure a reliable flow of electricity.
The BESS is proposed to be built at Oaky Creek Back Road, Ellesmere, adjacent to the existing Halys substation and electrical infrastructure. The BESS will be built on approximately 10 hectares (ha) of undeveloped land. The BESS is being designed for a capacity of over 400MW/1600MWh providing up to 4 hours of energy storage, delivered using world-class leading battery technology.
What is the proposed timeline for the project?* The first stage involved detailed planning studies and project planning. The approval process has commenced with the submission of our designs and plans to South Burnett Regional Council Regional Council. Following planning and electrical grid approvals* we will commence construction in late 2025.
Planning Early 2024 Planning studies and development application submitted.
Community Engagement 2025 Community and stakeholder consultation.
Construction 2026
Operations From 2027
Construction starts.
Halys BESS opens.
*Time frames are indicative only Halys Community Update
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