This invention relates to a submersible hydroelectric generator apparatus (1) and a method of evacuating water from such an apparatus. The method of evacuating water from a submersible hydroelectric generator apparatus (1) comprising the steps of pressurizing a fluid supply in the submersible hydroelectric generator apparatus using the water flowing into the apparatus and thereafter using the thus-pressurized fluid supply to evacuate the water from the apparatus. Additional pressurized fluid can be supplied to provide a pressurized fluid supply with sufficient pressure to expel the water from the apparatus. The apparatus (1) can be used in a grid connected electricity generating system or indeed in a smaller scale implementation such as in a single building or group of buildings to provide electricity to those buildings. The invention overcomes problems with prior art devices by evacuating water from the apparatus in an efficient manner.

Aspects of the disclosure provide a power conversion system and a method for conversing power. The power conversion system includes a first fluid holding tank, a second fluid holding tank, a fluid inlet hose, a fluid outlet hose, a fluid container, and one or more tension springs connected to the upper surface of the container and to a lower surface of the first fluid holding tank. The power conversion system further includes a rotational component connected to a lower side of the container via a connecting rod. The power conversion system further includes a generator connected to the rotational component via a horizontal shaft. The power conversion system further includes a feedback hose connected between the second fluid holding tank and the first fluid holding tank. The power conversion system further includes a hydraulic pump connected to the second fluid holding tank.

The power plant disclosed is an engine that derives its usefulness in the pursuit of energy generation by utilizing hydrostatic pressure differentials found or created in various liquids, gases or solutions, such as but not limited to water and air. It is generally provided as a configuration designed to create a pressure differential, and to use the pressure differential to increase the effective head seen via a penstock and turbine system. Pump systems that are employed include venturi systems, jet pump systems and other comparable mixed-pressure vacuum pumps. Multiple power generating systems are interconnected to provide continuous and constant power generation through a penstock and turbine system.

Disclosed herein are systems and methods for generating energy from a container configured to be fully submerged in a liquid and containing differing volumes of gas in order to alternatively ascend and descend through the liquid in order to rotate a drum spool connected to the container by a cable hose that unwinds from the drum spool as the container ascends, and winds as the cable descends. The rotational energy of the drum spool may thus be harvested.

Systems for pumping water are described. The system can include a covered pool containing a first volume of water, an oared water pump with a plurality of radial oars, an upper reservoir configured in fluid communication with the covered pool, a lower reservoir and a hydroelectric system. The oared pump can pump water from the covered pool into the upper reservoir. The upper reservoir can be configured to communicate water to the lower reservoir through the hydroelectric system with the lower reservoir configured in fluid communication with the covered pool.

A fluid driven motor device is provided, which does not use a magnet or an armature coil, includes a motor casing chamber containing a fluid mixture, a shaft disposed within the chamber, and a plurality of ray guns arranged on the periphery of the chamber, and a unidirectional gear assembly. The shaft has a plurality of cell holders, onto which a corresponding plurality of membrane cells is attached. Each membrane cell holds a predetermined quantity of a liquid. The membrane cells expand continuously based on the firing of the subatomic rays by the plurality of ray guns causing the shaft to rotate. The device has several advantages such as being very energy and heat efficient, having lesser weight as compared to conventional electromagnetic coil based motors.

A fluid driven motor device is provided, which does not use a magnet or an armature coil, includes a motor casing chamber containing a fluid mixture, a shaft disposed within the chamber, and a plurality of ray guns arranged on the periphery of the chamber, and a unidirectional gear assembly. The shaft has a plurality of cell holders, onto which a corresponding plurality of membrane cells is attached. Each membrane cell holds a predetermined quantity of a liquid. The membrane cells expand continuously based on the firing of the subatomic rays by the plurality of ray guns causing the shaft to rotate. The device has several advantages such as being very energy and heat efficient, having lesser weight as compared to conventional electromagnetic coil based motors.

A computer-implemented method of closed-loop dissolved oxygen monitoring and control at a hydroelectric plant includes: regulating at least one aeration valve coupled to a turbine using pattern recognition; wherein a target parameter for the regulating is a dissolved oxygen concentration of water downstream of the hydroelectric plant. The dissolved oxygen concentration may be at least 5.0 milligrams per liter. The pattern recognition may be performed using a neural network.

A computer-implemented method of closed-loop dissolved oxygen monitoring and control at a hydroelectric plant includes: regulating at least one aeration valve coupled to a turbine using pattern recognition; wherein a target parameter for the regulating is a dissolved oxygen concentration of water downstream of the hydroelectric plant. The dissolved oxygen concentration may be at least 5.0 milligrams per liter. The pattern recognition may be performed using a neural network.

A convective power generation device is described based on thermal convection and thermal input energy. The energy generation device operates by heating wax and oil by heat from a solar concentrator or geothermal energy; as the weight of the wax becomes liquid that is lighter than the oil, the liquid wax moves up through a pathway; when the liquid wax reaches the top of the pathway, the cooler wax falls towards collecting cups mounted to a continuous belt and forces the belt downward to rotate the belt; when a collector cup of wax reaches the bottom of belt rotation, the wax falls to a reservoir; and the rotation of the belt drives a gearbox, which drives a generator to produce electric power. The convective power generation device has been shown to have higher energy conversion efficiency than photovoltaics.