Solar venturi turbine

Solar venturi turbine

Solar windmill

Solar-wind turbine

Speed controlled pitch system

Speed sensing circuit for a wind turbine generator

Stream -or river-powered turbine

Submersible electrical power supply

Submersible turbine-generator unit for ocean and tidal currents

Supporting structures for water current (including tidal...

Synchronous machine

System and building for generating electricity using wind power

System and method for controlling a wind power plant

System and method for converting wind into mechanical energy

System and method for converting wind into mechanical energy

System and method for converting wind into mechanical energy

System and method for converting wind into mechanical energy...

System and method for generating electricity

System and method for generating electricity

System and method for generating electricity