Abstract: A hydroelectric power harvesting apparatus. The apparatus includes a support; a slide frame moveably coupled to the support; a float unit to float on a body of water having a movable water level; an energy generating mechanism; a float rocker arm coupled to the float unit and the energy generating mechanism. The float rocker arm is pivots about a pivot point on the slide frame. The float unit 104 moves with the water level of the body of water 106 to drive the float rocker arm to provide a work input to the energy generating mechanism. The slide frame is adjusts the level of the pivot point, float rocker arm, and the float unit.

Abstract: An energy harvesting apparatus comprising: a movable road component (106) that is configured to move away from a raised position due to a weight of one or more vehicles on the movable road component; a link (108) that is coupled to the movable road component, the link being movable between a rigid configuration and a flexible configuration, wherein in the rigid configuration, the link is configured to transfer force from the movable road component to act as a work input; and wherein in the flexible configuration, the link is configured to substantially isolate the movement of the movable road component to prevent the link from acting as a work input.