ML Power will build a 10MW/40MWh grid-scale battery storage facility in Miyoshi City, Hiroshima Prefecture, its parent company, Mizuho Leasing announced on January 26, 2026.
According to the statement, the project will be located within the city’s Higashisakeyama Industrial Area and is expected to come online in FY2029. It was awarded about 1.19 billion yen through METI’s FY2024 subsidy for grid-scale BESS, which covers up to two-thirds of eligible capital expenditures.
Miyoshi City said in June 2025 that it signed an agreement with ML Power to locate a battery storage project on a 4,118 m2 plot of land within the industrial area. The city’s records show the developer was seeking to acquire the site at 8,000 yen/m2, for a total of approximately 33 million yen.
The project follows several high-voltage BESS facilities in which ML Power holds stakes, including three developed jointly with Tohoku Electric Power in Gunma and Saitama, one with Sun Village in Fukui, and one with Osaka Gas, JFE Engineering, and Kyushu Steel in Saga. The Mizuho Leasing unit was also awarded a 2.65 billion yen subsidy for a joint project with Chugoku Electric Power and Chudenko under the FY2025 round of METI’s support program.
