Embodiments of a hydroelectric system for a dam can include a module anchored to a downstream face of the dam, the module including a protective housing that can include a Coanda-effect screen, a turbine housing retained within the protective housing, the turbine housing including an upper inlet portion at a first end, a substantially tubular portion, and a lower outlet portion at a second end, the upper inlet portion being positioned above the lower outlet portion, a turbine retained at least partially within the turbine housing, the turbine including a plurality of blades coupled with a central shaft, and a fluid pump, the fluid pump being coupled with the central shaft, where the fluid pump is configured to pump a high pressure fluid, a fluid circuit, the fluid circuit including piping, where the high pressure fluid is retained within the piping, and a generator, the generator being coupled with the fluid circuit, where the generator is driven by the high pressure fluid that is pumped by the fluid pump in response to the rotation of the turbine.

Embodiments of a hydroelectric system for a dam can include a module anchored to a downstream face of the dam, the module including a protective housing that can include a Coanda-effect screen, a turbine housing retained within the protective housing, the turbine housing including an upper inlet portion at a first end, a substantially tubular portion, and a lower outlet portion at a second end, the upper inlet portion being positioned above the lower outlet portion, a turbine retained at least partially within the turbine housing, the turbine including a plurality of blades coupled with a central shaft, and a fluid pump, the fluid pump being coupled with the central shaft, where the fluid pump is configured to pump a high pressure fluid, a fluid circuit, the fluid circuit including piping, where the high pressure fluid is retained within the piping, and a generator, the generator being coupled with the fluid circuit, where the generator is driven by the high pressure fluid that is pumped by the fluid pump in response to the rotation of the turbine.

The present invention relates to a water intake structure according to a first aspect. The structure includes a plurality of elongate members. The elongate members couple together and are trapezoidal in lateral cross-section. There is also provided a water intake structure according to a second aspect. The structure includes a plurality of elongate members. The elongate members couple together. Each said elongate member has first and second exterior surfaces that are planar and a third exterior surface that is outwardly concave.

Scalable Fluid Generator Array to utilize an adaptable grid of generators that are controlled by the end user's fluid demand, or available fluid supply, such that flow of fluid through every generator is always near optimum and working with maximum power conversion efficiency. The Fluid Generator Array is scalable to match the end user's power requirements.

Scalable Fluid Generator Array to utilize an adaptable grid of generators that are controlled by the end user's fluid demand, or available fluid supply, such that flow of fluid through every generator is always near optimum and working with maximum power conversion efficiency. The Fluid Generator Array is scalable to match the end user's power requirements.

An electric power information acquisition unit is provided for acquiring power supply-and-demand information including electric power acceptable to an electric power system or information correlated with the electric power. A fluid information acquisition unit is provided for acquiring fluid information including information correlated with a physical quantity of a fluid flowing out of a channel. A controller is provided for controlling at least one of the physical quantity, the channel or electric power generated or electric power to be generated by a generator by using the fluid information so that the physical quantity becomes equal to a desired value, while controlling electric power to be supplied to the electric power system to the electric power acceptable to the electric power system or less, by using the power supply-and-demand information.

A hydroelectric power plant includes an upper water basin, a lower water basin, a waterway connecting the upper water basin to the lower water basin, a hydraulic machine disposed in the waterway, an inlet valve disposed in a pressure pipeline, and an electric drive for actuating the inlet device. The electric drive is configured in such a way that it ensures reliable closing of the inlet valve even in the event of a power failure, without an emergency power supply being provided therefor.

A hydroelectric power plant includes an upper water basin, a lower water basin, a waterway connecting the upper water basin to the lower water basin, a hydraulic machine disposed in the waterway, an inlet valve disposed in a pressure pipeline, and an electric drive for actuating the inlet device. The electric drive is configured in such a way that it ensures reliable closing of the inlet valve even in the event of a power failure, without an emergency power supply being provided therefor.

A facility for generating electricity includes a hydroelectric generating apparatus including an elongate penstock in flow communication with a source of water and a hydro-turbine and a plurality of water refill pumps for supplying refill water to a plurality of horizontal pistons on a synchronized and coordinated basis to supply pressurized water to the penstock. A pressure regulator is provided for supplying pressurized air to a storage container for supplying air to the pistons and respective air exhaust/release valves release the pressurized air in the pistons to the atmosphere after use. Respective water inflow valves are provided for refilling the pistons after the air exhaust/release valves open.

A facility for generating electricity includes a hydroelectric generating apparatus including an elongate penstock in flow communication with a source of water and a hydro-turbine and a plurality of water refill pumps for supplying refill water to a plurality of horizontal pistons on a synchronized and coordinated basis to supply pressurized water to the penstock. A pressure regulator is provided for supplying pressurized air to a storage container for supplying air to the pistons and respective air exhaust/release valves release the pressurized air in the pistons to the atmosphere after use. Respective water inflow valves are provided for refilling the pistons after the air exhaust/release valves open.