Analysis of a PV Installation with a Battery Storage and BMS at a Residential Building

This study presents some results and analysis from the exploitation of a grid-connected PV installation with battery storage, operated in a residential building. The installation is made of a 4810 Wp photovoltaic system, an inverter and a 12 kWh Li-Ion battery storage. Furthermore, a battery management system (BMS) is used to provide passive balancing of the cells, as well as for monitoring different energy parameters of the system. The inverter determines the operation mode of the system as either bypass or battery mode, depending on the available and consumed power. The study also presents some results for typical sunny and cloudy days and analyzes the system’s exploitation efficiency.