Tokyo Electric Power Company Holdings, Inc. (TEPCO) is Japan’s largest electric utility group, headquartered in Tokyo. Through its operating companies, it covers the full electricity value chain: power generation, transmission and distribution, and retail supply to residential, commercial, and industrial customers across the Tokyo metropolitan area and surrounding regions.
TEPCO’s generation portfolio includes thermal plants (primarily LNG, alongside coal and oil), hydroelectric facilities, and an expanding set of renewable energy projects, as well as nuclear assets under long-term safety management and decommissioning. The company invests in grid modernization, energy storage, and low‑carbon technologies, and collaborates with partners on electrification and hydrogen-related applications such as power‑to‑gas. With extensive infrastructure and system operations expertise, TEPCO is a key energy provider to Japan’s manufacturing and process industries, supporting reliable supply and the sector’s transition toward lower‑emission energy.