South Korean Grid Will Soon Boast World’s Largest Energy Storage System

On March 8, Kolkam Co announced that it had deployed two battery energy storage systems powered by nickel manganese cobalt oxide in South Korea. The company installed a larger 24-MW / 9-MWh system and a 16 MW / 6 MWh system both of which will perform frequency regulation for Korea Electric Power Corporation (KEPCO). The company said that 24 MW / 9 MWh system is the largest capacity Lithium NMC ESS used for frequency regulation in the world.

Operational since January 2016, the two systems, along with a Kokam 16-MW / 5-MWh Lithium Titanate Oxide ESS system deployed in August 2015, provide KEPCO with 56 MW of energy storage capacity for frequency regulation. These three systems are part of the world’s largest ESS frequency regulation project, which is expected to deploy 500 MW of battery-based energy storage when it is completed in 2017.