The price of batteries is falling like a rock, driven by the electric car sector. From just over 200 $/kWh today to forecasts of 100 $/kWh in 2025 and 75 $/kWh towards 2030. But how is largescale storage used? What drives the value? What are the costs? And is it necessary in the Nordics? We have interviewed turbine manufacturers Enercon and Vestas regarding their projects and thoughts.