Xcel Energy, (NYSE: XEL)in partnership with the University of Minnesota, the National Renewable Energy Laboratory and the Great Plains Institute, will soon begin testing a one-megawatt sodium-sulfur battery storage system to demonstrate its ability to store wind energy and dispatch it to the electricity grid when needed.
American Electric Power annouced that it is expanding its use of large-scale battery technology on its electricity grid by installing six megawatts of sodium sulfur (NAS®) batteries for storage of electricity to enhance reliability, allow for continued load growth, provide support for weak sub-transmission systems, avoid equipment overload and to offset intermittent wind power.
AEP will be adding stationary sodium sulfur (NAS®) battery technology in its West Virginia and Ohio service territories next year. The company will also work with wind developers to identify a third location for NAS battery deployment ...to help offset the intermittent nature of wind generation.