Aggregation of residential Energy Storage Systems

This paper aims to perform a technical feasibility study of a Virtual Energy Storage System (VESS) composed of 1400 residential users with a PV plant and a Battery Energy Storage System (BESS). A control strategy has been developed and applied to find out the amount of grid services that the VESS is able to provide. The results show that, aggregating hundreds of residential users with a BESS, there is sufficient power and energy margin to provide grid services ensuring the services behind the meter such as the self-consumption functionality. The results of the feasibility study are quite promising: the VESS is able to provide up to 49 MWh of grid services, both upward and downward, over the day.