Rangebank battery boosts Victoria’s energy storage

Victoria has commissioned a 200MW, 400MWh battery storage facility at Cranbourne, developed by Eku Energy. The system can supply power equivalent to 80,000 homes for one hour during peak demand. The project adds to Australia's growing portfolio of grid-scale batteries, which are being deployed alongside renewables to manage output volatility.

Where this fits

This battery addresses a real problem: solar and wind output does not match demand. Without storage or gas backup, a grid dependent on weather-driven generation cannot hold frequency or meet peak load. A single 400MWh battery lasting one hour is a firming tool, not a solution. Australia is building a parallel system of batteries and gas plants to compensate for the intermittency of renewables. The minerals, manufacturing and capital cost of that firming infrastructure are rarely bundled into the headline cost of "cheap solar." Firm, dispatchable power, whether gas or nuclear, would not require this layered, capital-intensive backup. The alternative, a generation fleet anchored on nuclear baseload with its stable output and low lifecycle emissions, would eliminate the need for hour-scale storage altogether.

What it means

One battery holding four hours of national peak demand illustrates the scale of the storage problem. Scaling this across a fully renewable grid would require thousands of similar facilities, or equivalent investment in interconnection and gas plants, all to manage weather variation that a firm grid source would not face. Australia is dependent on China for 80 per cent of battery cell manufacturing and for processed battery materials. Each megawatt-hour of storage built domestically is capital deployed offshore. The grid is becoming more resilient to generation outages but less sovereign, and more exposed to supply-chain disruption.