Prospective Estimation of BESS Nominal Values for Frequency Control with High PV and Wind Integration

Energy storage systems (BESS) have been proposed to mitigate photovoltaics (PV) and wind generation variability, reducing the need to operate traditional spinning reserves and offering auxiliary grid services. BESS selection necessary to mitigate PV and wind generation variability is directly related to the worst daily short-time PV and wind generation variability. This paper proposes a practical estimation of BESS nominal parameters required to mitigate prospective power generation variability associated with high PV and wind generation penetration in Electrical Power Systems (EPS) under actual conditions, which includes significant loads impact through scenario analysis.