Power plantPower & energy

Sumitomo Corporation starts construction of grid-scale battery storage facility in Namie

Sumitomo CorporationNamie, FukushimaPublished Oct 1, 2026

InvestmentNot disclosed

PhaseUnder construction

StartOct 2026

Completion—

Sumitomo Corporation, through its wholly owned subsidiary BS Holdings, has started construction of a grid-scale battery storage facility (rated output 62 MW, storage capacity 291 MWh) in Namie, Fukushima, financed via project finance led by MUFG Bank. The facility was selected under Japan's long-term decarbonization power source auction, with commercial operation planned for 2029; the disclosure does not state the investment amount, contractor or equipment supplier.

Project facts

Owner: Sumitomo Corporation
Listing: 8053 Tokyo
Facility: Power plant
Sector: Power & energy
Location: Namie, Fukushima, Japan
Investment: Not disclosed
Scale / capacity: 62 MW rated output; 291 MWh storage capacity
Construction start: Oct 2026
Announced: Oct 1, 2026
Themes: power-grid

Figures and schedules are as announced by the company or the public body concerned; plans can change. Amounts that were not disclosed are recorded as not disclosed, never estimated.

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