An exemplary turbine system for generating hydroelectric power. The exemplary turbine system is generally installed in shallow waterways and accelerates water flowing therein. The accelerated water generates power via spinning one or more turbine rotors of the system. An exemplary method for installing the turbine system is disclosed. The method includes first lowering a turbine system base into the shallow waterway, where the base includes a depression for accepting a mortise insert. The mortise insert includes one or more sockets for accepting notches in a base plate, where the base plate is coupled to one or more turbine rotors. The base plate mates with the mortise insert for ease of installation and securely positioning the one or more turbine rotors within the system.

A hydroelectric power generating apparatus includes a check dam mounted on a hilltop portion of a hillside to accumulate water of a river reach, a power generating device mounted on a hill bottom portion of the hillside to be driven by a kinetic energy carried by the water for power generation, a diversion pipe extending from the check dam to the power generating device and having at least one diversion duct which extends along the river reach to make a pipeline that converts gravitational potential energy of the water into the kinetic energy, and a surge tank disposed to stand uprightly from the diversion duct for balancing pressure in the diversion duct.

Energy storage system comprising: a first tunnel shaft extending in an upright direction from a ground level to a predetermined underground level; an underground chamber at the predetermined underground level in the first tunnel shaft; a water reservoir is provided at the ground level a second tunnel shaft extending in a lying direction at the predetermined underground level, the second tunnel shaft forming a second water reservoir; at least one pipe extending through the first tunnel shaft interconnecting the first water reservoir and the second water reservoir for enabling water to flow between the ground level and the predetermined underground level; and
at least one electrical pump and at least one electrical turbine operationally connected to the at least one pipe to enable a controlled charging and discharging of the energy storage system by running an upward and a downward flow of water via the pumps and the turbines, respectively.

A variable-head hydroelectric power plant having an upstream intake works adapted to intercept at least partially the water coming from a source, a pipeline connected to the upstream intake works to receive and channel therein, at least partially, the water intercepted by the upstream intake works is disclosed. The power plant further includes a floating platform, adapted to be arranged and to float on the surface of a basin, and a hydraulic turbine arranged on the floating platform and connected to the pipeline to receive the water coming from the pipeline.

A method and device for non-emission electric energy production, consisting in: generating negative pressure or vacuum inside a pressure vessel in its upper part constituting a vacuum chamber in whose space a turbine rotor is situated; setting a height of a liquid or water column in the lower part of the pressure vessel constituting a liquid or water column below the turbine rotor, wherein the vacuum chamber is directly connected with the liquid or water chamber situated below the vacuum chamber, and a conventional interface between them is determined by the upper surface of the liquid or water column; closing a first closing means and supplying a liquid or water by a means for supplying a liquid or water to the vacuum chamber.

A multiphase fluid pressurized hydroelectric power generation system is disclosed. The system comprises a combination of fluids in the liquid and gas phase in contact with each other, a plurality of water reservoirs where at least one is a closeable water reservoir comprising a closeable volume i.e. a confined space where all fluid flow in and out is controlled, and a source of pressurized fluid arranged for supplying pressurized fluid to the at least one closeable water reservoir. A corresponding method is also disclosed.

A water-driven turbine has an elongated endless conveyor with down and up streaming straightaways connected by travel-reversing turns. Paddles mounted on the conveyor present high resistance to waterflow on the downstream straightaway and low resistance to waterflow or the atmosphere on the upstream straightaway, the differential allowing the flow of water to continuously drive the conveyor which is connected to a power take-off shaft facilitating connection to a variety of energy-harnessing systems. The turbine can be towed, self-driven or mooring line manipulated to a flow site and is operable in unidirectional flows such as rivers and reversing flows such as tides at depths from surface to bottom. The paddles can be mounted or changed on shore, at the flow site and anywhere in between. The turbine is efficient in low and high velocity water flow, not easily damaged by floating debris, cavitation free and fish, mammal and environmentally friendly.

A water-driven turbine has an elongated endless conveyor with down and up streaming straightaways connected by travel-reversing turns. Paddles mounted on the conveyor present high resistance to waterflow on the downstream straightaway and low resistance to waterflow or the atmosphere on the upstream straightaway, the differential allowing the flow of water to continuously drive the conveyor which is connected to a power take-off shaft facilitating connection to a variety of energy-harnessing systems. The turbine can be towed, self-driven or mooring line manipulated to a flow site and is operable in unidirectional flows such as rivers and reversing flows such as tides at depths from surface to bottom. The paddles can be mounted or changed on shore, at the flow site and anywhere in between. The turbine is efficient in low and high velocity water flow, not easily damaged by floating debris, cavitation free and fish, mammal and environmentally friendly.

Energy storage system comprising: a first tunnel shaft extending in an upright direction from a ground level to a predetermined underground level; an underground chamber at the predetermined underground level in the first tunnel shaft; a water reservoir is provided at the ground level a second tunnel shaft extending in a lying direction at the predetermined underground level, the second tunnel shaft forming a second water reservoir; at least one pipe extending through the first tunnel shaft interconnecting the first water reservoir and the second water reservoir for enabling water to flow between the ground level and the predetermined underground level; and
at least one electrical pump and at least one electrical turbine operationally connected to the at least one pipe to enable a controlled charging and discharging of the energy storage system by running an upward and a downward flow of water via the pumps and the turbines, respectively.

A practical method for short-term operations of large-scale hydropower plants divides all hydropower plants into three categories using operation characteristics such as system hierarchy, space attributes, task requirements, and schedule particularity. A strategy for adjusting spillage based on peak-shaving response and a strategy for equal load reduction in off-peak hours check and adjust power generation of hydropower plants with specified dispatching modes. For medium- and small-sized cascaded hydropower plants, the load distribution among plants is optimized with an objective of minimizing total power release subject to control condition of total generation profile. For large-size cascaded hydropower plants, an optimization model for peak-shaving operations and a method for balancing power plants with equal load rate are combined to respond to system peak demands and guarantee power balance in all periods.