The cost of a 50kW lithium-ion battery storage system using LiFePO4 technology can range from $30,000 to $60,000 or more, depending on the quality and brand of the batteries. The Battery Box is Blue Diamond Machinery's proprietary standalone Battery Energy Storage System (BESS) designed to deliver clean, silent and reliable off-grid power. Built for Australia's harshest conditions and engineered in-house at our Clean Energy Hub, this unit provides plug-and-play power. In this 2025 expert pricing guide, we'll break down the solar battery storage price in Australia, including costs per kWh, installation pricing, top brands, rebate savings, and real-world examples — all written by an expert solar energy writer for Australian Design Solar. Solar. Our 50KW solar package provides steady and reliable power for every part of your business, with tier 1 solar panels in an efficient configuration and a solid 50KW solar inverter. We pride ourselves in our strong reputation as the leading provider of commercial solar in Australia. Factors. Home / Off Grid System / Dingo 50kW Inverter (excl. engineering and network protection) Not sure what to buy? RedEarth's Dingo 50kW Inverter is designed for large-scale applications requiring scalable energy solutions.