Hybrid Battery Energy Storage System for Residential Customer Services

The purpose of this work is to combine the attributes of different battery technologies into one energy storage system (ESS) for residential customers. A selection of the leading battery technologies currently used were performed. The technologies evaluated in this work were: Lead Acid, and Lithium-Ion. Using MATLAB/Simulink, a case study with real data of temperature, irradiance and residential load behavior from Puerto Rico, was implemented in a scenario of a residential grid-tied PV system with batteries under net-metering agreement. The performance of the system using a single battery technology and using a hybrid battery bank that combines both Lead Acid and Lithium-Ion is compared. Finally, the Levelized Cost of Energy (LCOE) of the system is determined.