Battery and energy storage provider, Kokan Co., has successfully deployed two Lithium Nickel Manganese Cobalt (NMC) Oxide Energy Storage Systems (ESSs) for frequency regulation on the South Korean electricity grid. The systems include a 24-MW (9-MWh) and a 16-MW (6-MWh), respectively. The 24-MW system is the largest capacity Lithium NMC ESS used for frequency regulation…