Origin Selects Fluence to Deliver 300 MW / 650 MWh Mortlake Power Station Battery

Fluence Energy, Inc. announced that the company has been selected by Origin Energy Limited (Origin) to deliver a 300 MW / 650 MWh battery at the Mortlake Power Station in southwest Victoria.

The project will use Fluence’s Gridstack™ energy storage product with a 15-year service agreement contributing to Origin’s strategy to accelerate renewable energy and energy storage in its portfolio. The system will also utilise Fluence’s AI-powered asset performance management (APM) software, Nispera™, to optimise the battery’s operational performance.

“We are honored to be selected by Origin to deliver this grid-forming battery-based energy storage system and deploy our ecosystem of solutions,” said Fluence President and Chief Executive Officer Julian Nebreda. “Australia is an important market for Fluence. Our local team is now delivering over 1 GW energy storage projects within Australia to enhance grid stability and enable the country’s clean energy transition.”

The site preparation and civil works of the Mortlake Battery are expected to commence following a period of detailed design and procurement activity. The energy storage system is anticipated to be commissioned in late 2026. 

Located in Victoria’s South West Renewable Energy Zone, this energy storage system will provide system strength to the grid. The system will capture excess power during periods of high renewable generation and discharge to meet peak demand.