Pacific Gas and Electric Company (PG&E) and the California Energy Commission have unveiled the Yerba Buena Battery Energy Storage System pilot project to better balance power needs of the electric grid.
This smart grid project is a utility-scale sodium-sulfur battery energy storage project. It has a 4MW capacity, and can store more than six hours of energy. S&C Electric Company is the engineering, procurement and construction contractor for the project and supplied the storage management system and power conversion equipment that control the battery's AC input/output and its interface with the electric grid. NGK Insulators is the manufacturer of the sodium sulfur (NaS) battery system which includes the battery modules and control system for managing DC input/output and other parameters for maximizing module longevity. The project was made possible thanks to a $3.3 million grant from the Energy Commission to PG&E that will help fund the installation and evaluation of the system.
