The Metropolitan Water District of Southern California approved a battery energy storage system at the Robert A. Skinner Water Treatment Plant.The Oct. 13 MWD board vote amended MWD’s capital investment plan to include battery storage systems at three treatment plants and one pumping plant, authorized an agreement with Stantec Inc., for the design of the battery energy storage facilities and found the study portion of the project to be categorically exempt from California Environmental Quality Act review.The battery storage system program is intended to protect MWD against expected electricity cost increases and to improve the resiliency of the electric supply at the four facilities where the systems will be installed. The California Public Utilities Commission has a Self Generat
