California American Water, a subsidiary of American Water Works Co. Inc., has completed the installation of a new battery backup system at the Sierra Lakes Water Treatment Plant in Madera County. This initiative is part of the company's broader strategy to enhance emergency preparedness and reliability by deploying battery energy storage systems $(BESS)$ across high-risk regions in California. The $800,000 project, partially funded by California's Self-Generation Incentive Program, aims to replace diesel generators with cleaner, more sustainable energy solutions. The BESS can provide up to 24 hours of backup power, strengthening water service resilience during emergencies and Public Safety Power Shutoffs. This installation marks the company's continued commitment to infrastructure investment and sustainability, following earlier deployments of BESS technology in Ventura County.