Variable speed reconfigurable pump/turbine clusters

Self contained hydraulic lock apparatus

Fluid apparatus

Improvements to Hydraulic Machines During Grid Disconnections

Speed limiting turbine for a conduit

Method, system and apparatus for operating a hydraulic turbine

Stepwise operating parallel type small hydro power generation system having fixed flow path

Hydroelectric power generation apparatus and power generation system

Artificial coastal-protection reef with energy generation unit with or without direct contact with seawater

Tidal power generation system and methods

Wave energy conversion device