7 Electric machines, engines and motors for power plant operation for use in generating energy obtained from alternative energy sources; parts and fittings for power plants, namely, electric generators, electric compressors, electric pumps, regulators being parts of machines, turbines not for land vehicles, hydrodynamic wings for use as machine parts; fasteners for power plants, namely, swivels, struts and tethers, and power cables designed exclusively and specially adapted for use with water turbines other than for land vehicles, current generators, electric generators; water power devices for power plant operation, namely, electrical and electronic apparatus and equipment all for use in generating energy obtained from alternative energy sources; apparatus for generating energy from tidal water flows into electricity, namely, turbines for power plant operation other than for land vehicles and generators; excluding goods for use in the fields of waste water, water treatment, recycling, waste, and waste-to-energy related goods; All of the foregoing for use in production of sustainable energy