Image: Tesla
Tesla has switched on another massive win for grid-scale energy storage, this time in Australia. The company says 444 Tesla Megapacks are now powering one of the country’s largest grid-forming battery projects, marking a major milestone for renewable energy infrastructure in the region.
According to Tesla’s official Megapack account, the 600 MW / 1.6 GWh Melbourne Renewable Energy Hub is now online and delivering essential grid services. Co-owned by Equis and Australia’s State Electricity Commission (SEC), the project is strategically located in western Melbourne near major transmission infrastructure, allowing it to provide system strength and grid support as renewable generation continues to scale across Victoria.
At a headline level, the numbers are staggering. With 444 Megapacks deployed, the project is valued at roughly $450 million and ranks among the largest battery energy storage systems (BESS) in the world. More importantly, it’s a grid-forming battery, meaning it doesn’t just store energy — it actively helps stabilize the grid by providing inertia, frequency control, and voltage support as coal and gas plants are phased out.
The project also underscores how Tesla’s Megapack has become its flagship utility-grade energy storage solution. Designed specifically for grid-scale applications, each Megapack can store around 4 MWh of energy and dispatch it when needed, making it a key tool for integrating intermittent renewable sources like solar and wind. Australia, in particular, has emerged as a major Megapack market, with Tesla winning multiple large-scale projects across the country in recent years.
This Melbourne deployment follows a string of high-profile Megapack installations globally. In North America alone, Tesla Megapacks recently went live at a $90 million battery energy storage facility in Canada, as well as a massive 550 MW / 2,200 MWh project in Arizona that uses 594 Megapacks — even larger than this Australian build.
Tesla is also not standing still on the product side, either. The company unveiled Megapack 3 and its new Megablock system last year, promising faster installs, higher capacity, and improved long-term reliability. Megablock is already slated to debut at another $220 million battery project in Australia, further cementing the country’s role as a proving ground for Tesla’s next-generation grid storage.
As grids worldwide race to decarbonize, projects like the Melbourne Renewable Energy Hub show why Tesla’s Megapack is quickly becoming a cornerstone of modern electricity systems.
