Japan, Feb. 12 -- Kyushu Railway Company ("JR Kyushu"), Sumitomo Corporation and Sumitomo Corporation Kyushu have jointly invested in and established Battery Station Kyushu LLC. On January 30, 2026, Battery Station completed its second grid-scale battery storage project, "Battery Station Tomiai," in Kumamoto City, Kumamoto Prefecture. Following commissioning and operational adjustments, the facility will begin participating as a grid-scale battery in the Ancillary Market and the Capacity Market.1. Overview of the Battery Station BusinessBattery Station provides energy services centered on stabilizing electricity supply and demand and expanding the use of renewable energy ("renewables") by utilizing railway-adjacent land and idle property ma...