Electric Generating Ecological Flood Control System which consists of selective collector, pressing pipeline, exiting collector, electric generator which is differs that pressing pipeline is lay under the bottom of the river or on the bottom of the river or in the water or above the water, where through the pressing collector carries out diversion of flood waters outside the area of possible flooding zones, while the regulation of amount and speed of water flows carries out according to additional leading one device regulative armature, that installed on pipeline and done with possibility of regulation exiting ability.

Electric Generating Ecological Flood Control System which consists of selective collector, pressing pipeline, exiting collector, electric generator which is differs that pressing pipeline is lay under the bottom of the river or on the bottom of the river or in the water or above the water, where through the pressing collector carries out diversion of flood waters outside the area of possible flooding zones, while the regulation of amount and speed of water flows carries out according to additional leading one device regulative armature, that installed on pipeline and done with possibility of regulation exiting ability.

An underground hydraulic system is disclosed, the system comprising an intake tunnel (2) connected to a body of water (1), a control unit (3) arranged to control flow of water from the body of water (1) into the intake tunnel (2), a distribution tunnel (5) connected to the intake tunnel (2), and at least one riser tunnel (6) connected at a lower end to the distribution tunnel (5), and arranged for receiving water from the distribution tunnel (5).

An underground hydraulic system is disclosed, the system comprising an intake tunnel (2) connected to a body of water (1), a control unit (3) arranged to control flow of water from the body of water (1) into the intake tunnel (2), a distribution tunnel (5) connected to the intake tunnel (2), and at least one riser tunnel (6) connected at a lower end to the distribution tunnel (5), and arranged for receiving water from the distribution tunnel (5).

A hydropower installation includes a water supply and an energy generating station, with the supply at a higher level than the energy generating station; and a duct extending between the supply and the energy generating station. The energy generating station of the hydropower installation is configured based on high water velocity and low pressure. The duct may comprise plastic pipes. The duct may be arranged on a foam support and enclosed by a foam embedment. The duct may comprise at least two duct sections, with an intermediate energy generating station arranged between the duct sections of the duct. The duct may comprise internally extending protrusions, such as dimples to promote a laminar flow of fluid through the pipe. The duct may taper. Water pressure inside the duct may be maintained at atmospheric level. The proposed features all contribute to a pressure free velocity based system.

A hydropower installation includes a water supply and an energy generating station, with the supply at a higher level than the energy generating station; and a duct extending between the supply and the energy generating station. The energy generating station of the hydropower installation is configured based on high water velocity and low pressure. The duct may comprise plastic pipes. The duct may be arranged on a foam support and enclosed by a foam embedment. The duct may comprise at least two duct sections, with an intermediate energy generating station arranged between the duct sections of the duct. The duct may comprise internally extending protrusions, such as dimples to promote a laminar flow of fluid through the pipe. The duct may taper. Water pressure inside the duct may be maintained at atmospheric level. The proposed features all contribute to a pressure free velocity based system.

The invention relates to energy generation and water conservation. There are many water systems which might lend themselves to energy extraction, such as canal systems. However, despite canal systems being around for hundreds of years, practical solutions for using the energy available have not been developed. The invention provides, among various examples, a system which can be associated with a lock in a canal and provides a flow control strategy responsive to water availability upstream of the lock. Thus electricity may be generated selectively in response to the lock state and energy demands but without adversely affecting the canal system by taking excess water. The system may be applied to multiple locks and may incorporate machine learning to evolve a strategy for a canal based on lock usage and energy demand.

An energy island system arranged related to a body of water with a seafloor, a surface and a depth over an underground is disclosed. The system comprises a structurally rigid shell (1) extending from the seafloor to above the water surface, inclosing a lagoon of the body of water, material with a negative buoyancy stacked around the shell (1) forming a gravity stabilized wall (2), and a tunnel (5) established in the wall (2), providing for hydraulic communication between the surrounding body of water and the interior of the shell (1). Further, a method for construction of an energy island is disclosed.

An energy island system arranged related to a body of water with a seafloor, a surface and a depth over an underground is disclosed. The system comprises a structurally rigid shell (1) extending from the seafloor to above the water surface, inclosing a lagoon of the body of water, material with a negative buoyancy stacked around the shell (1) forming a gravity stabilized wall (2), and a tunnel (5) established in the wall (2), providing for hydraulic communication between the surrounding body of water and the interior of the shell (1). Further, a method for construction of an energy island is disclosed.

A solution mined cavity system and method is disclosed. The system comprises an underground cavity created by solution mining in salt deposits, an upper water reservoir, tubing means adapted to lead water from the upper water reservoir into the 5underground cavity and out of the underground cavity, and pumping means adapted to contribute to pumping water from the upper water reservoir via the tubing means out of the cavity.0