Synergistic home energy management system with building-to-vehicle-to-building operation for enhancing energy service accessibility in disaster affected communities

Abstract

High-impact, low-probability events such as earthquakes, hurricanes, and floods can severely damage power systems, leading to prolonged outages and adversely affecting occupants. Although distributed energy resources (DERs), including photovoltaic systems and electric vehicles (EVs), offer potential solutions to enhance energy resilience in the post-disasters, their impact on community resilience remains limited without collaborative approaches. Therefore, a synergistic home energy management system (SHEMS) is proposed in this study to enhance community energy resilience in post-disasters. SHEMS provides collaboration of various DERs owned by different residential units electrically isolated from the grid and each other. Additionally, building-to-vehicle-tobuilding (V2B2) operation is integrated into SHEMS to enable energy transfer via EV among houses located in electrically isolated areas. While the proposed system enhances community resiliency by minimizing total loss of demanded services (LODS) in the post-disaster, a fair share of energy among residential units is ensured by distributing the exposed LODS equally without relying on financial mechanisms. Sensitivity analysis is conducted to evaluate the system's response to the total LODS under varying parameter conditions. The results demonstrated that proposed algorithm enhances energy resilience up to 31 %, while achieving the maximum LODS difference of 16 % in accordance with the fair share approach across examined cases.