SALA Energy completed its first grid-scale battery storage facility, the 11.4MW/69.6MWh SALA Hamamatsu Storage Station, and plans to begin operation on October 15, 2025, the company announced on October 9, 2025.
According to the statement, the asset will be aggregated by Chubu Electric Power Miraiz. It was built on the premises of the company’s Hamamatsu Supply Center in Hamamatsu City, Shizuoka Prefecture. Unlike most grid-scale BESS facilities, which use lithium-ion systems, SALA Hamamatsu Storage Station uses NAS (sodium-sulfur) batteries supplied by NGK Insulators.
SALA Energy broke ground on the facility on July 6, 2023, and at the time planned to begin its commercial operation in the spring of 2026. METI awarded the project a 1.2 billion yen subsidy under its FY2022 supplementary budget program for grid-scale storage. Sumitomo Mitsui Banking Corporation provided a five-year, 2.2 billion yen green loan to the developer at the end of 2023 to finance construction and early operation.
Separately from the extra high-voltage asset, SALA Energy also plans to commission a 2MW/7.5MWh system co-located with its 666kWAC solar power plant in Toyohashi City, Aichi Prefecture, later this month. Both projects have been developed under the company’s efforts to invest 7 billion yen into its grid-scale and co-located storage and PPA businesses to meet its FY2030 decarbonization target.
