Sizing and Siting of Energy Storage Systems for Mitigating Forecast Mismatch in Transmission Grid

The rise of renewable energy sources (RESs) and load demand implies the research of suitable solutions to improve the operation of transmission systems. The accelerated development of battery technologies heightens interest in installing battery energy storage systems (BESSs) for the provision of different grid-support services to transmission networks. In this context, the present paper proposes a methodology to size and site BESSs on a transmission system to face RESs and load mismatches. The approach involves an analytic hierarchy process to rank a set of candidate buses, and a time-series hosting capacity analysis to determine the maximum BESS size at each node. Furthermore, BESS operation's potential revenue along with network benefits, through a centralised control strategy, are assessed. The method is tested on an IEEE 39-bus system modified version.