Power plantPower & energy

Tamagawa HD to develop grid-scale battery storage facility in Iga, Mie

Tamagawa Holdings Co., Ltd.Iga, MiePublished Aug 7, 2026

Investment¥120M

PhasePlanned

Start—

CompletionSep 2027

To completion

Today

2027

About 11 months to scheduled completion.

Tamagawa Holdings' subsidiary Tamagawa Energy will acquire the site and development rights for a grid-scale battery storage facility in Iga, Mie, from Green Energy Plus. The project is planned for grid connection in September 2027 and will have a rated output of 1,999 kW and nominal capacity of 8,000 kWh; total development cost is ¥570 million excluding tax.

Project facts

Owner: Tamagawa Holdings Co., Ltd.
Listing: 6838 Tokyo
Facility: Power plant
Sector: Power & energy
Location: Iga, Mie, Japan
Investment: ¥120M — site and development-rights purchase price, excluding tax; total development cost ¥570 million excluding tax
Scale / capacity: 1,999 kW rated output / 8,000 kWh nominal capacity
Completion: Sep 2027
Announced: Aug 7, 2026
Themes: power-grid, renewable-energy

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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