Image: Tesla
Tesla has secured another major utility-scale energy storage deal, this time supplying Megapack systems for a massive new battery project being built alongside what will soon become the largest wind farm in Australia — and the entire southern hemisphere.
According to new details shared by developer TagEnergy, the company has ordered 168 Megapack XL 2.0 units from Tesla for a 150 MW/600 MWh battery energy storage system (BESS) that will sit next to its 1,333 MW Golden Plains Wind Farm in Victoria. The Megapack order alone is worth roughly $170 million.
TagEnergy confirmed the project in a LinkedIn announcement, saying: “What’s better than building Australia’s largest wind farm (and the southern hemisphere’s biggest) to drive the energy transition? Adding a large-scale battery energy storage system on-site to optimise the massive amounts of clean energy being created! That’s what we’re doing at Golden Plains.”
The company added that it has “supplier contracts with Consolidated Power Projects (CPP) for construction, and Tesla for 168 Megapack XL 2.0 battery systems in place, building work will start early next year.” Once complete in mid-2027, “Golden Plains BESS will help balance supply and demand on the grid, provide critical capacity during peak demand periods, and support more flexible and reliable access to renewable, cost-effective energy for the people of Victoria.”
Tesla’s Megapack is the company’s flagship utility-grade energy storage product. Designed for grid-scale storage, each Megapack can store large amounts of energy and discharge it on demand, helping utilities stabilize supply and integrate intermittent renewable power sources like solar and wind. The system has become a backbone for large battery farms worldwide — especially in Australia, one of Tesla’s strongest Megapack markets.
The order follows several recent Megapack wins for Tesla. In August, Georgia Power signed a landmark $2.7 billion deal for Megapacks to support its grid modernization plans. Meanwhile, Elon Musk’s AI startup, xAI, is deploying $375 million worth of Megapacks at its upcoming Colossus II supercomputer cluster in Memphis. Tesla also recently unveiled Megapack 3, a redesigned next-generation version offering 5 MWh of usable AC energy per unit with improved efficiency, faster installation, and higher long-term reliability.
With Golden Plains set to supply nearly 10% of Victoria’s electricity needs, pairing the massive wind farm with a four-hour Tesla battery ensures far more stable and predictable delivery. And with construction on the BESS starting early next year, Australia’s already world-leading energy storage sector is about to get another huge boost.
