The ESSs include a 24MW system / 9-megawatt hour (MWh) and a 16MW / 6MWh system.
The company claims that the 24 MW system is the largest capacity Lithium NMC ESS used for frequency regulation in the world.
The two new systems have been operational at Kokam since January this year, along with a Kokam 16MW / 5MWh Lithium Titanate Oxide (LTO) ESS system deployed in August last year.
These supply power to Korea Electric Power with 56MW of stored energy for frequency regulation.
The three systems are part the world’s largest ESS frequency regulation project, which hopes to deploy 500MW of battery-based energy storage by 2017.
Apart from enhancing grid reliability, the Kokam ESSs will allow KEPCO to improve its operation efficiency by decreasing its necessity of spinning power generation reserves.
It will enable KEPCO to shift energy generation to lower cost and decrease wear and tear on its power plants.
Kokam power solutions division vice president Ike Hong said: "Our Energy Storage Systems provide KEPCO with the performance it needs to precisely and cost-effectively regulate frequency on the South Korean grid, helping it ensure the stability of this grid, improve its operational efficiency and lower its greenhouse gas emissions."
The new 24MW and 16MW Lithium NMC ESSs use Kokam’s Ultra High Power NMC battery technology.
KEPCO senior vice president and head of innovative energy business divisionHwang Woohyun said: "Kokam’s 56 MW of Energy Storage Systems are making a major contribution to the stabilization of our grid, and we hope to continue to cooperate with Kokam to develop energy storage projects that improve grid reliability, lower our operational costs and reduce our environmental impact."
Image: This Kokam 24-megawatt Energy Storage System (ESS), deployed for use by South Korea’s largest utility, Korea Electric Power Corporation (KEPCO), is the world’s largest Lithium NMC ESS for frequency regulation. Photo: Courtesy of PR News Wire.
