Orana BESS
Powering One of Australia's Largest Battery Energy Storage Projects
Tyree Supply
BESS Inverter Transformers
Project Developer & Operator
Akaysha Energy
Infrastructure Supplied
116 Australian-Made Inverter Transformers
Location
Wellington, NSW
Capacity
415MW / 1660MWh
Application
Utility-scale Battery Energy Storage
Network Connection
Adjacent to TransGrid 330kV Wellington Substation
Overview
The Orana Battery Energy Storage System (BESS) is a landmark project supporting NSW's transition to a cleaner and more resilient energy future. As one of Australia's largest grid-scale battery projects, Orana will enable greater integration of renewable energy while strengthening network reliability and energy security.
The Challenge
Battery storage projects continue to grow in size and complexity. This means developers require transformer solutions that deliver:
Reliable grid integration of inverter-based energy systems
High-efficiency performance under dynamic operating conditions
Compliance with Australian grid and network requirements
Long-term reliability and resilience of critical energy infrastructure
Tyree’s Solution
As a key project partner, Tyree supplied Australian-designed and manufactured inverter transformers for the Orana BESS, applying decades of experience in transformer engineering and manufacturing to meet the technical demands of a large-scale battery energy storage project.
Scope of Supply
Quantity of (116), 4.6MVA, 33kV BESS Inverter Transformers
Designed and Manufactured in Australia
Factory Testing and Quality Assurance
On site support for Utility-Scale Battery Energy Storage application
The Outcome
Tyree's inverter transformer solution supports the reliable connection of the battery system to the transmission network, helping deliver one of Australia's largest battery energy storage projects. Following successful commissioning, the Orana BESS achieved full operational output and commenced commercial operation.
