TOKYO, Feb 10, 2026 – (JCN Newswire) – KS Energy Co., Ltd. (“KS Energy”), a renewable energy business company and Hitachi, Ltd. (TSE:6501, “Hitachi”) agreed on February 6 to collaborate on the development and operation of an Extra-High Voltage Grid Battery Energy Storage System*1 within Kumamoto Prefecture, as well as the development and operation of power trading businesses. Hitachi will provide project development support for KS Energy’s development of the pro...