What is a “battery energy storage system”?
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2020/12/15 16:01:34
The term BESS, or battery energy storage system, refers to a system that is more than just a battery. For a battery to function efficiently it needs additional components. A BESS typically includes a power conversion system, otherwise known as an inverter, which includes bi-directional power electronics used to charge and discharge the battery simultaneously. A power control system informs the inverter when to charge and discharge batteries. Additional cooling and fire-fighting systems are installed to prevent and contain any thermal related events. And finally, auxiliary power supplies as well as a storage container are needed to support and house the overall system.
Due to the complexity of a complete BESS, this article focuses on the batteries and their manufacturing only. For real-world projects, it is advised to keep in mind that the battery is only one part of the overall system. The other components and the interactions between them need to be evaluated with the same care to achieve high levels of BESS performance and safety.
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