Apparatus for generating energy

An apparatus for generating energy by intake and drainage of a fluid, the apparatus comprising:

• a reservoir for receiving at least a portion of the fluid;
• a pair of receptacles in fluid communication with the reservoir and mounted above the reservoir, each of the pair of receptacles having a variable volume for holding the fluid, the variable volume controlled by movable portions positioned inside each of the pair of receptacles;
• a lever rotatable about a lever pivot, the lever coupled at a first side of the lever pivot to the movable portions associated with a first one of the pair of receptacles and coupled at a second side of the lever pivot to the movable portions associated with a second one of the pair of receptacles, such that movement of the movable portions that decrease the variable volume in the first one of the pair of receptacles induces, via the lever, a corresponding movement of the moveable portions which increases the variable volume in the second one of the pair of receptacles;
• control valves controlling the fluid communication between the pair of receptacles and the reservoir;
• a controller coupled to the control valves, the controller configured to alternatingly configure one of the pair of receptacles to enable draining to the reservoir while configuring another of the pair of receptacles to prevent draining to the reservoir but to allow suction from the reservoir;
• and
• a generator coupled to moving portions and activated by communication of fluids between the pair of receptacles and the reservoir.