Marine current turbines (MCT) are used to generate green energy from currents and tides. This is done by converting the kinetic energy of rotating blades into electrical energy.
Clancy, Phil; Schiferl, Eric; Winter, Nathen; Zajac, Adam; Chen, Shouyu; Cespedes, Morgan; and Christiansen, Ryan, "Marine Current Turbine Prototypes" (2016). Ocean Engineering and Marine Sciences Student Publications. 34.