The battery energy storage system integrates battery system with power conversion system that can connect with the power grid. It can be in the form of a cabinet or a container for outdoor use. The direct current from the battery system can be inverted and delivered to the grid, while the alternate current can be rectified and charged into the battery system. The locally stored energy can be used for charging electrical vehicles and machineries, and other electrical devices. It can also store energy for load balancing services of the grid. The BESS can be monitored and controlled by BMS, EMS, and SCADA.

This is a general diagram of a BESS