Sumitomo Electric receives order for redox flow battery system from Nippon P.S. for its Head Office and Factory

12 December 2022

Sumitomo Electric Industries, Ltd. has received an order from Nippon P.S. Co., Ltd. for a redox flow battery system (system capacity: 250 kW x 3 hours) to be installed at its head office and factory.

In recent years, as the introduction of renewable energy accelerates toward the realization of a decarbonized society, the need for storage batteries is growing for the purpose of stabilizing power systems and effectively utilizing renewable energies. There is a particularly strong need for safe and long-life storage batteries, and Sumitomo Electric has been developing and selling redox flow battery systems to meet the need.

Nippon P.S. was considering introducing a solar power generation system to its new factory as a measure to shift the electricity used in its head office and factory to renewable electricity, and Sumitomo Electric proposed the introduction of a redox flow battery system to the company.

The redox flow battery system can be charged and discharged according to the output of the combined solar power generation system and the power demand on the premises. By charging power when solar power is surplus and discharging power when power demand is high, the redox flow battery system is expected to increase the percentage of renewable electricity in the total electricity consumption on the premises of Nippon P.S. to 50%. In addition, one storage battery system can be used for multiple purposes, such as the reduction of electricity costs by shaving the peak and use as an independent power supply to important equipment during power outages.

In addition to these advantages, Nippon P.S. highly evaluated the cost benefits and safety of the redox flow battery system throughout its service life, which became the decisive factor for the company to adopt the system.

This project is supported by the Ministry of the Environment’s subsidy program “FY2021 Promotion of price reduction of solar power generation systems or the like to achieve storage parity (Subsidies for business expenses for reducing carbon dioxide emissions),” which supports private companies in introducing self-consumption solar power generation systems and storage batteries.