It is located at Poolbeg Energy Hub, where ESB – around 95% owned by the Irish state with the remaining stake held by its employees – is planning to deploy a combination of clean energy technologies, including offshore wind, hydrogen, and battery storage, over the coming decade. . The Republic of Ireland's environment minister Eamon Ryan was on hand last week as a 75MW/150MWh battery energy storage system (BESS) was officially inaugurated. The project, with an investment. . The Kylemore Battery Energy Storage System in Dublin went into operation in 2023 and has the capability of providing 30MW of fast-acting storage. ESB,the state-owned electricity company,has announced the opening of a "great achievementfor battery. .