Method and apparatus for tidal power generation

Abstract

A tidal power generation system incorporates a buoy tethered to a first cable with a power generation spool engaging the first cable for rotational motion upon extraction of the cable by the buoy during elevation increases of the water on which the buoy is riding. An electrical generator is connected to the power generation spool and a rewinder for the power generation spool reels in the cable during receding water elevation. A gear drive interconnects the power generation spool and electrical generator with a gear reduction in certain embodiments for increasing generator rotational speed. The rewinder uses a rewind spool connected to the power generation spool and engaging a second cable for counter-rotational motion. A mechanical energy storage device is connected to the second cable. A suspended weight provides energy storage in the first embodiment while a spring attached to a fixed anchor point provides energy storage in an alternative embodiment.

Dependencies are inferred from the claim text.