Duke Energy to upgrade its Notrees Energy Storage System
CHARLOTTE, N.C., June 30, 2015 /PRNewswire/ — Duke Energy, Samsung SDI and Younicos will team up to update Duke Energy’s 36-megawatt (MW) energy storage and power management system at the company’s Notrees Windpower Project in west Texas.
The system, one of the nation’s largest, has been operating since 2012 with lead acid batteries. Over the course of 2016, these batteries will be gradually replaced with lithium-ion technology.
“The Notrees Energy Storage Project has proven to be a valuable asset, achieving the objectives of our partnership with ERCOT (Energy Reliability Council of Texas) and the Department of Energy,” said Greg Wolf, president of Duke Energy, Commercial Portfolio. “Because battery technology is rapidly evolving, we have an opportunity to upgrade the facility to better match the function that has become most valuable in the Texas market — fast response frequency regulation.”
Duke Energy, the nation’s largest electric utility, currently owns nearly 15 percent of the grid-connected, battery-based energy storage capacity in the U.S., according to independent research firm IHS Energy.
Duke Energy works closely with ERCOT, which signals to the battery storage system to either dispatch stored energy to increase frequency or absorb energy to decrease frequency, helping to smooth and balance peaks and valleys on the ERCOT grid. By rapidly storing or releasing energy, the system can respond quickly to regulate frequency and provide additional services for grid management.
Samsung SDI, as primary engineering, procurement and construction manager, will provide its high-performing lithium-ion batteries and associated Battery Management System (BMS).