4 FAQs about Japan s energy storage power station goes into operation

Does Pacifico energy have a battery storage facility in Tokyo?

Tokyo, December 9, 2025 — Pacifico Energy K.K. (Head Office: Minato-ku, Tokyo; President & CEO: Hiroki Matsuo; hereinafter “Pacifico Energy”) today announced that it has commenced commercial operation of a grid-scale battery storage facility developed by the company in Tokyo Area.

What are energy storage systems used for?

Energy storage systems used mainly for power grids and renewable energy power plants A joint venture established by Shikoku Electric Power Company, Incorporated and CHC Japan K.K. Hitachi Energy's power conversion solutions for distributed energy sources.

When did Hitachi start delivering a grid energy storage system?

Operations officially commenced on August 1. This project marks Hitachi's first delivery of a grid energy storage system in Japan. The entire process–from design and procurement to installation and testing–was seamlessly managed as a “One Hitachi” initiative, leveraging the comprehensive capabilities of the Hitachi Group.

How will Japan's power supply balancing market contribute to grid stability?

Through participation in Japan's wholesale electricity market and balancing market, the facility will contribute to grid stability and the mitigation of power price volatility. Participation in the capacity market will further enhance supply reliability and system resilience.

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