Optimisation Strategies to Reduce Renewables Curtailment Using Transportable Energy Storage Systems

Increasing shares of renewable energy sources in power systems worldwide have led to increased renewable curtailment due to network and/or stability limitations. Energy storage systems, both stationary and mobile, are widely proposed as a promising solution for reducing such curtailment. The paper presents a detailed analysis of renewable energy curtailment, taking the case study of a future Irish grid scenario, to identify the prospects of transportable energy storage systems (TESS). A combined unit commitment optimal power flow formulation has been developed to evaluate the locational curtailment from all renewable sources. The study establishes a baseline understanding of the locations and durations of renewable curtailment, providing insights on short-Term/long-Term TESS relocation, along with short/long distance movement possibilities, paving the way for optimal sizing and management of TESS units.