A Resilience-Driven Battery Energy Storage System Sizing Strategy for Grid Edge Radial Supplies

Non-wire alternatives are gaining acceptance in areas where traditional reliability improvement methods are of difficult adoption or not cost effective. Declining costs of energy storage systems favor the adoption of electrochemical batteries if supported by a sound value proposition. This paper presents a practical method to size battery storage systems based on minimizing the cost to the distribution system operator. The method is based on an exhaustive search and considers only practical aspects faced by electric utilities, leaving out parameters that are either not visible or impactful. The proposed approach was adopted in a real distribution network slated for reconfiguration just few years following the study, but poor reliability has favored the adoption of the storage system as an interim solution with minimum environmental impact and improved metrics.