Economic Evaluation of Battery Energy Storage Integration into Plant with Cyclic Load

Abstract

This paper deals with the simplified economic evaluation of the peak shaving by a battery-based energy storage system in plants with cyclic load profile (typically steel plants) and its own electrical energy source – typically the steam turbine. There are several possible motivations and/or benefits to be explored. The paper focuses on the optimal sizing of the turbine and BESS in relation to the total costs of investment and operation. There is proposed a methodology of integration into these plants. A control strategy of Battery Energy Storage System (BESS) operation is proposed. The impact is put on the inclusion of all economically important factors. Finally, the case study is defined and evaluated, based on the steel plant load diagram and other key factors. The technical-economic potential of this application is discussed in the conclusion.