The design of the city’s battery energy storage/micro grid system was developed to maximize the offset of the city’s overall electricity costs from PG&E. Equipment location, identification, and selection is the result of SES’s detailed review of the sites, in conjunction with the city’s building plans, specifications, physical equipment arrangements, and discussions with the city’s personnel. The new energy storage/micro grid system is intended to offset electrical demand charges at the site and provide backup power in the event of a utility grid outage.

SES installed a new battery energy storage system, micro grid controller, and enough electrical infrastructure to provide utility demand charge reduction and backup power to the city’s Community Center. The system provides data on the generation of the solar PV system and operation of the battery energy storage system, including charge/discharge rates and state of charge.