- CEO
- Kazuhiro Ishiyama
- Full Time Employees
- 24,234
- Sector
- Utilities
- Industry
- Renewable Utilities
- Address
- 1-7-1 Honcho Sendai Japan 980-8550
- IPO Date
- Mar 20, 2013
- Business
- Tohoku Electric Power Company, Incorporated (TEPCF) generates, transmits, and distributes electricity to approximately 7.6 million residential, commercial, and industrial customers across six prefectures in Japan's Tohoku region plus Niigata Prefecture. The company operates a diverse portfolio of power generation facilities, including thermal plants fueled by coal, oil, gas, and liquefied natural gas; hydroelectric installations; nuclear power plants such as Onagawa; renewable energy sources like wind, solar, and geothermal; and internal combustion units, with an installed capacity exceeding 16 GW and a generation mix comprising roughly 60% thermal, 30% hydropower, and the balance from nuclear and renewables. It maintains an extensive transmission and distribution network spanning over 45,000 km of lines and 298 substations, delivering power primarily at 100 V and 50 Hz (with some 60 Hz areas), while also providing energy solutions, smart metering, data services, EV charging infrastructure, customer support, and consulting through subsidiaries like Tohoku Electric Power Network Co., Inc., Tohoku Electric Power Renewable Energy Service Co., Inc., and Tohoku EPCO Energy Trading Co., Inc.
Founded in 1955 and headquartered at 1-7-1 Hon-cho, Aoba-ku, Sendai, Miyagi 980-8550, Japan, Tohoku Electric Power ranks as Japan's fourth-largest electric utility by revenue. The company focuses on grid stability, decarbonization initiatives, and regional energy security, serving as a key player in the domestic power sector with operations confined to Japan.
In September 2025, Tohoku Electric Power acquired a stake in the Ishikari Bay New Port Offshore Wind Farm—Japan's largest operational offshore wind project—partnering with Hokkaido Electric Power Co., Inc., JERA Nex Limited, and Green Power Investment Corporation to enhance long-term stability and efficiency through combined operational expertise. This strategic move supports the company's expansion into renewables amid ongoing decarbonization efforts.