Fundamentals of advanced energy conversion and storage. Electrochemical energy storage. Review of electrochemical cells. Electronic and ionic conductivity. Overpotential and ohmic losses. Types of cells. Batteries, fuel cells and supercapacitors. Primary, secondary and redox flow batteries. Lead-acid, nickel-cadmium, nickel-metal-hydride and lithum ion batteries. Vanadium redox flow batteries. Solid oxide, molten carbonate and proton exchange membrane (PEM) fuel cells. Water electrolysis. Hydrogen storage. Gravimetric and volumetric energy density and power density. Energy efficiency and coulombic efficiency. Grid and local energy storage. Batteries for electric vehicles. Environmental and safety considerations. Flywheel energy storage. Principles. Components: rotor, magnetic bearings. Parasitic losses: Friction, hysteresis and eddy currents. Energy efficiency and energy density. Hydroelectric energy storage. Principles. Fundamentals of hydroelectricity. Reversible hydroelectric turbines. Reservoirs and storage capacity. Comparison of storage by conventional hydroelectric plants, tidal hydroelectric plants and pumped storage. Response times. Compressed air energy storage. Adiabatic, diabatic and isothermal systems. Heat exchangers. Energy density and efficiency. Mobile, underground and underwater storage.