TOKYO, Nov. 30, 2025 /PRNewswire/ -- Manoa Energy ("Manoa" or the "Company") today announced the start of commercial operations for the Helios 50MW Battery Energy Storage System ("BESS") in Sapporo City, Hokkaido, Japan. Accessibility StatementSkip Navigation The Helios 50MW / 104 MWh BESS was developed in partnership with Brawn and HD Renewable Energy Japan (HDJP) by Brawn's 100% owned Japan based development platform Manoa Energy ("Manoa"). "Successful completion of our first standalone Extra High Voltag ...