Dimensioning and sizing of an energy storage for ports when considering both fast and slow load variations

This paper will investigate the future power demands in seaports from the increased electrification of ships, where the port of Oslo is used as a case study. It will be explored how the power capacity can be improved by including an energy storage system (ESS). Similar problems have been addressed in the research literature, but they rarely consider the fast power variations caused by, e.g., cranes. Instead, the worst-case scenario is assumed by using the constant rated power during their operation to avoid making the problem too computationally expensive. Therefore, an ESS sizing method is proposed for determining the required capacity of an ESS when considering fast-varying loads over large time horizons. Inspec keywords: ships; marine engineering; sea ports; energy storage Subjects: Battery energy storage systems; Goods distribution; Ship building and marine industry; Transportation