A Hybrid Storage System for Energy Sharing and Management within Prosumers’ Community

Abstract

The population growth, rising energy demand, economic drain, and carbon emissions result in the massive infiltration of renewable energy resources (RER) at consumption. The active users that produce and consume energy are termed as prosumers. However, the use of RER without energy storage systems (ESS) is not practical due to intermittent and uncertain supply. To this end, this paper investigates the impact of the hybrid energy storage system (HESS) in terms of a lifetime, and ESS cost to share and manage the energy within the prosumer community. For HESS, a parallel combination of ultra-capacitors (UC) and lead-acid batteries are used at the prosumer end along with the central storage unit (CSU) to maintain the state of charge (SOC) within the safe limits. The power transients are managed by UC which ultimately improves the battery life. Simulation results show there are 36% and 37.5% HESS-based cost reductions for prosumer-1 and prosumer-2, respectively.