Impacts of control set-points on battery energy storage performance for peak shaving application

This article presents the impact of battery energy storage system's (BESS) control triggers on its performance during peak shaving application. With the increasing deployment of BESS for load leveling and grid capacity relief, the sensitivity of BESS performance to its set-points is yet to be investigated. Most utilities have defined thresholds to activate BESS discharging for peak demand leveling and baseload BESS charging. However, this study shows that without using optimal set-points for control applications, the BESS can remain under-utilized. In this work, simulation results of the peak shaving algorithm implementation in 30-minute time step over a period of 10 years show the impact of different BESS control set-points on distribution transformer loading, line and system losses.