A Real Case Analysis of a Battery Energy Storage System for Energy Time Shift, Demand Management, and Reactive Control

Battery Energy Storage Systems (BESS) can be a multiple application equipment for every electrical segment, that is, generation, transmission, and final customer. Although many similarities in the product design can be found, there are innumerous ways to adapt the operation routine through the Energy Management System (EMS) for each customer. In this work, a real case analysis of a BESS installed in a final customer is presented, providing services with the main purpose of reducing electricity charges and increasing reliability of energy supply. Three different load scenarios were tested (low, medium, and high) on the combination of the following operation modes: energy time shift, demand charge management, and reactive power control. As a result, the system was able to perform correctly since the controls and the system itself were properly designed. In order to understand those operation modes and their results, this paper shows a brief description of the BESS components and the local tariff structure is also detailed.