Labyrinth packing for turbines
Large diameter hydroelectric machine
Lever operated pivoting float with generator
Lift motor
Lifting device for installing and servicing an underwater...
Liquid actuated motor power
Liquid operated motor power
Louvered horizontal wind turbine
Low cost linear generator wave energy converters
Low head hydropower generating apparatus
Low head water turbine
Low head, dynamic variable pitch, submersible hydro generator
Low lead hydroelectric installation
Luminous float