A system for storing and generating power is disclosed. The system comprises a first storage reservoir configured to store a first fluid, a second storage reservoir located at a lower elevation than the first storage reservoir and configured to store a second fluid wherein said second fluid has a higher density than the first fluid, and a pump. In some embodiments a generator may be employed. The pump and the first and the second reservoir are operatively connected such that power is stored by displacing the second fluid in the second storage reservoir by pumping the first fluid from the first storage reservoir to the second storage reservoir and such that power is generated by allowing the pumped first fluid in the second storage reservoir to exit the second reservoir. The first fluid is generally a liquid.

Hydro Turbine unit producing 880 MW-h energy daily in offshore oceans creating average high-pressure compressed air transferable energy stored in air tanks and using generators to transform into local electrical energy. The harvesting of renewable offshore water energy of ocean wave, tidal and stream energy, converting it to accumulated water head potential energy in a large isolated water trapping pool structurally supported laterally by six tall towers extended to ocean maximum depth of 100 meter deep with arrow shape plungers pneumatic reciprocating hammering into seabed in slanted angle relative to seabed. The energized ocean water enters the trap pool through thousands of one-way check valves in the trap pool floor and surrounding walls. Large flow openings into 6 Hydro turbine manifolds direct swirling water through radial guiding vanes and conical converging top vertically downward through 8 turbine blades applying torque to turbine outlet shaft and flowing down to ocean level.

A pneumatic motion system includes a rotating wheel, a plurality of wheel rods mounted to the rotating wheel, a plurality of main weight members respectively sleeved on the wheel rods, at least one air supply member, and a plurality of air cycle units. Each of the air cycle units is disposed at one of two opposite ends of a respective one of the wheel rods, and includes two main air compressors fluidly communicating with the at least one air supply member. For each wheel rod, when the respective one of the main weight members is moved to the one of the opposite ends of the wheel rod, each of the main air compressors is pressed by the main weight member to force air into the at least one air supply member.

A water pumping system used for lifting liquids in vertical or near vertical conduits or pipes to a higher elevation at a reduced energy cost. Also, the water pumping system can be used to circulate water between upper and lower elevations to generate hydropower energy at a lower energy cost. The water pumping system includes a water pump, air blowers, an air supply chamber, a lift conduit, a return conduit, a flotation device separation chamber, a plurality of floatation devices, one or more flotation device pushers, a dehydration unit, and two water storage tanks. The lift conduit and return conduit creating a continuous loop in which the flotation devices can circulate and act as a piston in the lifting conduit to elevate the water to higher elevations with reduced energy. The floatation devices include spacer rings and spacer rods. The floatation devices are inserted inside the lift conduit and the return conduit.

This invention relates to hydraulic energy storage and management systems. In particular, this invention relates to a hydraulic energy management system that has a reconfigurable energy storage and release capability that adjusts to varying available energy input and power demand output requirements. The hydraulic energy management system can be resized by a hydraulic bridge circuit to permit hydraulic power units to be added or removed, both physically and operationally, to capture available energy over time, adjust to peak demand cycles, and maintain power output in the event of a failure of a portion of the system.

A pneumatic motion system includes a plurality of casings, a plurality of frame members respectively extending into the casings, a plurality of linear rails respectively mounted to the frame members, a plurality of main weight members respectively and movably mounted to the linear rails, at least one air supply member, and pairs of main air compressors. Each pair of the main air compressors is disposed at one of two opposite ends of a respective one of the casings. For each casing, when the respective one of the main weight members is moved to the one of the opposite ends of the casing, each pair of the main air compressors is pressed by the main weight member to force air into the at least one air supply member.

A pumped hydro energy storage system and method are disclosed. The system employs a high-density fluid, such as a slurry, to improve power output. In some cases, the fluid is a binary fluid system, with a high-density fluid and a lower-density fluid, such as water. The lower-density fluid flows through the turbine unit of the system, avoiding the need to modify the system to handle the high-density fluid, while achieving improved power output. The system can be configured with one atmospheric reservoir for a higher-density fluid and another one for a lighter-density fluid. Each of them is connected to a pressurized cavity which is filled with the higher-density or lighter-density fluid. The atmospheric tanks may be at the same elevation, or the tank with high density fluid might be higher for increased energy output. For example, the system may be placed on a topographical elevation. The system further includes a fire extinguishing sub-system to utilize the water or lower-density fluid to extinguish fires occurring in the proximity thereof.

In a general aspect, a system stores energy underwater. In some aspects, the system includes a base having a bottom side resting on an underwater floor and a top side that includes recessed surfaces. The system also includes domed walls extending from the top side of the base to form respective fluid chambers. Each of the fluid chambers includes an interior volume that is at least partially defined by one of the recessed surfaces and an interior surface of one of the domed walls. The system additionally includes a pump and a generator. The pump is configured to transport water from the fluid chambers toward an exterior environment of the system. The generator is configured to generate electrical energy in response to water flowing from the exterior environment toward the fluid chambers.

A system for water desalination and power generation. The system includes a power generation section and a desalination section. The power generation section includes a first tank, a second tank, and a first channel. The desalination section includes a third tank, a fourth tank, and a second channel The system utilizes waste energy in power plants to desalinate water and generate power. The disclosed system is able to improve the performance of power plants, by utilizing the wasted power of the exit steam, to desalinate seawater and even generate electricity. The disclosed system alleviates requirements for cooling towers and introduces thermal exchange tanks, radiators, and sprinkles instead of cooling towers.

An underwater energy storage system comprising a container where energy is stored by transporting water between the container and a body of water, is disclosed. 5 The container comprises a water- and gas-tight membrane surrounding a container volume, where the container is rendered mainly incompressible by a fill material comprising densely packed, incompressible objects arranged in the container volume, the fill material forming a mainly incompressible aggregate.