Analysis of ‘Increase Self-Consumption’ Battery Energy Storage System Use - A Residential Case Study in Cyprus

Abstract

This paper presents the case of the first grid-connected Battery Energy Storage System (BESS) in Cyprus, integrated with a residential rooftop photovoltaic (PV) system. The BESS assists in increasing the household's self-consumption and thus limiting grid interaction by storing excess PV generation. The uncontrollable injection of excess PV power to the grid can generally create stability issues to the power system, such as voltage variations. As the number of PV installations increases, it is of utmost importance to alleviate any barriers for further PV deployment. An analysis of the system's first year of operation and its contribution towards self-consumption increase and thus excess PV injection to the power grid is presented in this work.