Large-scale energy storage, such as pumped hydro storage, compressed air energy storage, and advanced battery technologies, can play a critical role in supporting grid stability and facilitating the integration of renewable energy sources by addressing the inherent variability and intermittency associated with these technologies and helping smooth out the fluctuations deriving from these technologies or optimising the sale price of the electricity produced. Large-scale storage can also enhance grid reliability by acting as a reserve that can quickly respond to sudden changes in energy supply or demand, filling gaps and preventing blackouts, thus reducing the need for fossil fuel-based peaking plants, which are often used to meet demand spikes but are less environmentally friendly. This session will explore the various ways large-scale storage facilities can facilitate the energy transition.