The Nishi-Sendai Substation – BESS is a 40,000kW energy storage project located in Sendai, Miyagi, Japan.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2013 and was commissioned in 2015.


The Nishi-Sendai Substation – BESS was developed by Toshiba . The project is owned by Tohoku Electric Power (100%).

The key applications of the project are frequency regulation and voltage support.

Contractors involved

Tohoku Electric Power and Toshiba have delivered the battery energy storage project.

Additional information

Funding Source 1- Federal/National Grant
Funding Source Details 1- Japan Ministry of Economy, Trade and Industry.

Toshiba supplied 40MW-class BESS to Tohoku Electric Power Company for Nishi-Sendai Project in 2014 to regulate frequency changes caused by power output fluctuations. A high evaluation on technical performances of SCiB™, including safety and charge-discharge efficiency, resulted in the order for Minami-Soma Project.

About Toshiba

Toshiba Corp (Toshiba) is a diversified enterprise involved in electronics, electrical equipment, and information technology. It designs, develops, produces, and sells storage devices, point-of-sale (POS) systems, energy-saving products and services, semiconductors, personal computers (PCs), semiconductor manufacturing equipment, microwave semiconductors and components, tablets, home appliances products, power systems, transmission and distribution systems, and water treatment systems. It offers digital solutions, building solutions, power systems and other social infrastructure solutions such as steam turbine for thermal power plants, hydroelectric, wind and nuclear power generation systems, secondary battery, energy supply systems, lighting, air-conditioning systems, elevators and building and facility technologies. The company has business operations across Asia-Pacific, Europe, the Middle East, Africa and the Americas. Toshiba is headquartered in Minato-ku, Tokyo, Japan.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.