A Battery Energy Storage Systems (BESS) stores (typically) one to two hours of energy in batteries to help stabilize the grid, provide additional backup power and independence from the grid, reduce diesel generator needs, lower energy costs, and take better advantage of renewables. In data centers, BESS provides instant backup power, stabilizes voltage and frequency, and supports renewable. They can make better use of renewables to reduce emissions while maintaining availability. According to the International Energy Agency (IEA), in 2024, data centers consumed about 415 TWh, 1. Over the last five years, consumption has grown at a 12% annual rate, fueled by the exponential rise of AI and cloud computing, and is expected to reach 945 TWh by 2030. BESS, short for Battery Energy Storage System, is an advanced energy storage technology solution widely adopted in the renewable energy sector.
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