J-POWER broke ground on its first grid-scale battery storage project on October 1, 2025, the company announced on the same day. It plans to commission the 10MW/43MWh Hibikinada Power Storage Station in FY2028.
According to the statement, the project in Kitakyushu City, Fukuoka Prefecture, will be built on the premises of J-POWER Wakamatsu Operations and General Management Office. The company did not disclose further details but a visualization released with the statement suggests the facility will use 11 Tesla Megapack units.
Construction is likely subsidized under METI’s FY2024 program for the support of grid-scale storage projects, under which J-POWER was awarded approximately 737 million yen for a project in Fukuoka Prefecture.
Separately from the storage facility, one of J-POWER’s two solar projects, the 30MWAC/41.2MWDC Kitakyushu City Hibikinada Solar Power Plant commissioned in May 2025, is also sited at the Wakamatsu office.
Currently, J-POWER has no other known domestic battery projects under development. However, it invested in Japanese BESS system manufacturer PowerX in 2022 and acquired Australian renewables and BESS developer Genex Power in 2024 suggesting interest in expanding its storage portfolio.
