TEPCO, committed to safety and shaping the future of energy, provides vital services across Japan. Traditional customer service operations relied heavily on call centers, making it time-consuming to accurately determine customer locations and provide appropriate support. Further the deregulation of the electric power industry and the emergence of new services demanded higher-quality customer experiences and services. To solve the challenge, its subsidiary, TEPCO Energy Partner, planned to undergo digital transformation by employing Google Maps Platform, enhancing customer experiences, optimizing operations, and reducing costs. Led by Yoshitaka Iizuka, the DX Promotion Office drives customer-centric reforms to realize TEPCO's vision of becoming a "future-oriented infrastructure company.