Williamsdale BESS

Energy storage is a key priority for the ACT Government as it transitions away from fossil fuels and gas and pursues its plan to reach net zero emissions by 2045.

This grid-scale storage system can store as much electricity as can be generated from 25,000 average solar rooftop solar systems on an average day. Batteries can store excess renewable energy to be used at the times of the day when there is higher demand - thereby extending the benefit of renewable energy into the evenings. It will increase the renewable energy hosting capacity across the ACT enabling more Canberrans to access the benefits of renewables.

Eku Energy has established a $500K community grants program to support local non-for profits and fund projects or initiatives according to a set of social investment criteria, including positive impact on the environment, social connectedness as well as employment and education. Applications for this program closed on June 30, 2025. We will advise of the successful applicants later this year. In addition, a further $500K has been granted to the Australian National University to fund the Battery Storage and Grid Integration Program and associated research and development activities that will support the future uptake and integration of battery storage to accelerate decarbonisation within the ACT.

The Williamsdale BESS site was assessed under the merit track process and was found to have no significant environmental impact. The area comprises grazing land with patches of native vegetation and the development is not expected to affect key environmental values. A Cultural Heritage Assessment was conducted in collaboration with local First Nations representatives to identify any culturally significant items. All site works will comply with the approved Development Application conditions and a dedicated CHMP will be followed during the construction phase.

During construction, potential impacts on nearby residents may include increased traffic and noise from earthworks, machinery, and equipment deliveries.During operations, batteries do emit low-level noise depending on their operating mode and ambient air temperature. However, the design of the BESS has sought to minimise operational noise and mitigation measures such as acoustic walls, have been included to ensure compliance with local regulations.

We have been working closely with ACT Fire and Rescue to ensure the design and operation of the battery meets safety standards does not introduce any operational risks. All emergency response measures have been developed in alignment with ACT Fire and Rescue protocols.