Paddle wheel electric generator
Parabolic bi-directional wind turbine assembly and...
Parallel hybrid vehicle employing parallel hybrid system,...
Parallel starting system having a low wiring expenditure
Parallel valve rotary machine control system
Partial-powered series hybrid driving system
Particulate energy absorber
Particulate material powered prime mover
Passively cooled direct drive wind turbine
Pasting and bookbinding method, pasting and bookbinding...
Peak power generation
Pedal generator
Pedal generator
Pedal operated power generating system
Pelagic sustainable energy system
Permanent magnet energy storage apparatus
Permanent magnet energy storage apparatus
Permanent magnet generator for bicycle light operation
Permanent magnetic generator
Phase change assisted heat sink