Tohoku Electric Power Company Head Office Building, Corporate skyscraper in Honchō, Japan.

The Tohoku Electric Power Company Head Office Building is a modern skyscraper in Sendai's business district, featuring a glass and steel facade with a clean geometric design. The structure rises prominently above the surrounding area and serves as a recognizable landmark in the city's skyline.

The building was completed in 2002 as part of regional infrastructure modernization in Tohoku. Its construction reflected the region's economic growth and investment in contemporary business facilities during that era.

The building's nickname is "Energy Square". Its 16th-floor lounge fills with employees at lunchtime, and the basement holds the Naka-Sendai high-voltage substation, which supplies power to central Sendai. The owner is Higashi-Nihon Kogyo, a Tohoku Electric Power affiliate.

The building sits in the heart of Sendai's business zone with convenient access to public transportation and nearby amenities. The surrounding area offers restaurants, shops, and services that make it easy to navigate the district.

The building's 148.05 m height includes its antenna; the roof structure itself reaches 125.25 m, making it Sendai's third-tallest building by body but second-tallest structure by peak after SS30. A high-voltage substation, Nakasendai Substation, sits in the basement and feeds power into central Sendai.