Entry into the Renewable Energy Business through Grid-Scale Battery Storage
First written in FY2025-H1. 16 of 18 entries say "Advanced", first in FY2025. Latest entry: 2026-09-29.
28 other companies' latest entry also says "Advanced".
- 2026-09-29AdvancedManagement Planning
「系統用蓄電所の保有案件が通期で寄与した場合の全社 実力ROEは 28.9% を想定。」
系統用蓄電所について、栃木小山蓄電所の稼働済み実績に加え、複数案件の開発・JV・匿名組合出資による拡大方針を示している。 - FY2026AdvancedAnnual report
「During the consolidated fiscal year, the Group began operating the grid-scale battery-storage facility in Oyama, Tochigi Prefecture, acquired in January 2025. In addition to building operational expertise through standalone investments, or direct ownership, the Group is seeking to expand its battery-storage portfolio at a faster pace than standalone investments by combining them with financial leverage through fund structures.」
In addition to commencing operations at the Oyama, Tochigi battery-storage facility, the Group progressed with portfolio expansion through fund structures, including facilities in Saitama and Kumamoto prefectures. Revenue from the Energy business was ¥506.059 million, and segment profit was ¥121.179 million. - FY2026-H1AdvancedAnnual report
「We have begun operating our own grid-scale battery storage facilities and recognize high profitability in addition to contributing to social issues through electricity supply-demand stabilization. Accordingly, we decided to invest in a grid-scale battery storage fund (the “Fund”). The Fund plans to develop 6 grid-scale battery storage projects. Total investment: ¥600 million (our total silent partnership investment); our silent partnership investment ratio: 13.37%.」
As a subsequent event, the company decided to make a ¥600 million silent partnership investment, representing 13.37%, in a grid-scale battery storage fund planning 6 projects, adding a means of expanding its scale beyond direct operations. - FY2026-H1AdvancedAnnual report
「In the new grid-scale battery storage business, trading by the Tochigi Oyama Battery Storage Facility in the balancing market began in December 2025, establishing a foundation as a new growth pillar.」
The Tochigi Oyama Battery Storage Facility progressed from planning and acquisition to trading in the balancing market. - FY2025AdvancedAnnual report
「During the consolidated fiscal year, the Group’s total capital investment was ¥847.515 million, mainly for the acquisition of a grid-scale battery storage facility.」
The renewable-energy business progressed from planning to facility acquisition and capital investment. For the Oyama, Tochigi facility, the company disclosed completion scheduled for September 2025, planned total investment of ¥897.200 million and payments made of ¥792.800 million. - FY2025-H1First statedAnnual report
「As part of our growth strategy, we have decided to launch a renewable-energy business involving grid-scale batteries. Through this business, we will provide balancing functions that enable renewable energy, whose output varies with weather and time of day, to be consumed without waste, contribute to stabilizing the power grid and help expand the use of renewable energy toward carbon neutrality by 2050.」
The company decided to enter grid-scale battery storage as a new growth business. It planned its first facility in Oyama, Tochigi, with operations beginning in May 2025, output of 1,990 kW, storage capacity of 8.14 MWh and total investment of approximately ¥800 million.