Technical Assessment of Coupled PV and Battery Systems - A Case Study from the Mediterranean Region

Battery Energy Storage (BES) technology has a major role to play in the upcoming energy transition, especially when it is coupled with variable Renewable Energy Sources (RES) facilities such as solar photovoltaic (PV) systems. On the other hand, financial compensation and legislative barriers currently rendering storage technology, prevent it to become a profitable and reliable solution for energy system integration. This paper outlines the primary targets of StoRES project towards developing a technical solution for PV systems in conjunction with BES. For this purpose, coupled PV-BES residential storage systems were developed in six countries, aiming at optimizing the utilization of storage towards achieving higher PV penetration. Another focus of this paper is the implementation of a community storage system which was installed in Cyprus. This is connected to the same distribution feeder supplying the local residential pilot systems in order to make a credible comparison between the centralized and distributed storage.