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. 50kW/100kWh outdoor cabinet ESS solution (KAC50DP-BC100DE) is design. Price quote for fixed type outdoor photovoltaic energy storage cabinet The price range for an outdoor energy storage cab. With its. In 2025, the typical cost of commercial lithium battery energy storage systems, including the battery, battery management system (BMS), inverter (PCS), and installation, ranges from $280 to $580 per kWh. Larger systems (100 kWh or more) can cost between $180 to $300 per kWh. Cost Effective Battery Energy Storage System 50kw 100kwh Outdoor Energy Storage System for Industrial Commercial.