The main objective of SP4 is to develop methods and equipment for mechanical storage of electric energy and, vice versa, to use the energy for supporting the grid when consumption increases.
As for now, three mechanical storage methods have been suggested for further analysis: hydropower including pumped hydro, compressed air energy storage and flywheels. The activities focus on existing and potential storage capacity by hydropower, flywheels and compressed air in Europe and future scenarios. Additionally, technology developments for the improvement of mechanical storage technologies, their environmental impacts and numerical models will also be considered.
