CN105927455A - Water storage power generation system using seabed pressure energy - Google Patents
Water storage power generation system using seabed pressure energy Download PDFInfo
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- CN105927455A CN105927455A CN201610497832.8A CN201610497832A CN105927455A CN 105927455 A CN105927455 A CN 105927455A CN 201610497832 A CN201610497832 A CN 201610497832A CN 105927455 A CN105927455 A CN 105927455A
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- storage
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- water pump
- sea water
- generating system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/97—Mounting on supporting structures or systems on a submerged structure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a water storage power generation system using seabed pressure energy. The power generation system comprises a storage container, a seawater pumping energy accumulation unit and a pressure pipe; the storage container is arranged on a seabed, and includes a first opening end; the first opening end is connected to the pressure pipe; a valve is arranged on the pressure pipe; and the seawater pumping energy accumulation unit is arranged on the seabed, is connected to the pressure pipe, and includes fluid machinery connected with the pressure pipe and a motor/generator in transmission connection with the fluid machinery. The power generation system realizes electric energy storage by using a pressure difference in the seabed and the storage container without constructing high and low impounding reservoirs and being limited by geographical conditions; and the system uses seawater as a working medium for solving the dependency problem of traditional water pumping energy accumulation on fresh water resources. The system is suitable for power supplies with various types, environment-friendly and broad in application prospect.
Description
Technical field
The invention belongs to power energy storage technical field, particularly to a kind of water storage generating system utilizing subsea pressure energy.
Background technology
Power energy storage refers to by medium or equipment, unnecessary electric power be stored, the process discharged the most again.In recent years, for the needs adapting to the new forms of energy such as wind-powered electricity generation, photovoltaic generation, regenerative resource large-scale develops and utilizes；Improve typical power system and the needs of energy resource system comprehensive utilization ratio；Ensureing electric power and the needs of the energy safety of supply, power energy storage technology is competitively emerged in large numbers, and development is swift and violent.
According to energy transition form, power energy storage technology can be divided into physics energy storage, chemical energy storage and Power Flow generally.Physics energy storage mode mainly has water-storage, compressed-air energy storage, flywheel energy storage and ice cold-storage；Chemical energy storage mainly has lead-acid battery, lithium ion battery, flow battery and sodium-sulphur battery etc.；Electromagnetism storage electricity mainly has super capacitor and superconducting energy storage etc..At present, the electric energy storing system run in large-scale commercial applications system only has water-storage and compressed air two kinds, wherein, water-storage has the advantage such as technology maturation, high, big, the accumulation of energy cycle length of capacity of efficiency because of it, becomes now widely used electric energy storing system.
Water-storage is at power system power load low-valley interval, by water pump, from low level reservoir, water is delivered to elevated reservoir, and the potential energy converting electrical energy into water stores, and when peak of power consumption, water is discharged into low level reservoir from elevated reservoir and drives hydraulic turbine acting generating.The life cycle management of hydroenergy storage station was up to more than 40 years, and its overall efficiency is generally 70-80%.But, traditional pumped storage needs special geographical conditions to build upper and lower two cisterns, and initial investment is huge, construction period length (the most about 5-15).Additionally, traditional pumped storage utilizes fresh water as running working medium, system is relatively big to the dependence of freshwater resources, and this is less for suitabilitys such as the island country of some scarcity of fresh water resources, cities.
Summary of the invention
It is an object of the invention to provide a kind of pumped storage utilizing subsea pressure energy storage and energy release, to solve at least one technical problem above-described.
For achieving the above object, the pumped storage that the present invention provides, utilize subsea pressure can carry out electric power storage.
Specifically, the technical scheme that the present invention is used by realizing its technical purpose is:
A kind of water storage generating system utilizing subsea pressure energy, including storage container, sea water pump-storage generator and pressure pipeline, it is characterised in that:
Described storage container is arranged at seabed, and including the first opening, the first opening is connected to pressure pipeline, and described pressure pipeline is provided with valve；
Described sea water pump-storage generator is arranged at seabed and is connected on described pressure pipeline, and described sea water pump-storage generator includes the fluid machinery being connected with pressure pipeline and the dynamoelectric machine being in transmission connection with described fluid machinery.
A specific embodiments according to the present invention, the described water storage generating system utilizing subsea pressure energy, its storage container also includes one second opening, second opening atmosphere above breather line with sea level.
A specific embodiments according to the present invention, institute's breather line is provided with pressure regulating valve.
A specific embodiments according to the present invention, for utilizing the water storage generating system of subsea pressure energy, is provided with the gearshift adjustment system being connected with dynamoelectric machine in its sea water pump-storage generator.
A specific embodiments according to the present invention, the described water storage generating system utilizing subsea pressure energy, the porch of its pressure pipeline connection sea water is provided with trash rack.
A specific embodiments according to the present invention, the described water storage generating system utilizing subsea pressure energy, its storage is held it and is shaped as spherical or cylindrical；Preferably, described storage container is one or more, is arranged parallel to each other.
A specific embodiments according to the present invention, the described water storage generating system utilizing subsea pressure energy, its storage container and sea water pump-storage generator stake, slip casting, suction anchor or ballast direct pressing are fixed on seabed.
A specific embodiments according to the present invention, the described water storage generating system utilizing subsea pressure energy, when its dynamoelectric machine is according to motor mode, its drive power supply be thermal power generation, nuclear power, wind-powered electricity generation, solar electrical energy generation, water power or tidal power generation etc. therein one or more.
A specific embodiments according to the present invention, the described water storage generating system utilizing subsea pressure energy, its sea water pump-storage generator is four machine separated type sea water pump-storage generator, three machine tandem sea water pump-storage generator or two machine reversible sea water pump-storage generator；Preferably, described sea water pump-storage generator is at least 1.
A specific embodiments according to the present invention, the described water storage generating system utilizing subsea pressure energy, its fluid machinery includes that multiple stage water pump, the hydraulic turbine or Reversible Pump-Turbine, described multiple stage water pump, the hydraulic turbine or Reversible Pump-Turbine are serial or parallel connection form；In parallel form, each split axle is dynamically connected with main drive shaft.
By technique scheme it can be seen that the beneficial effects of the present invention is:
(1) by whole system is placed in seabed, the pressure utilizing seabed can carry out electric power storage, compared with traditional pumped storage, can effectively overcome its addressing difficulty, range of stage is big, freshwater resources are relied on the problems such as big, effect on environment is big, relatively costly, it is adaptable to close on island country and the city of seashore scarcity of fresh water resources；
(2), when simultaneously, dynamoelectric machine is according to motor mode, it is adaptable to various types of power supplys, have broad application prospects；
(3) by this electricity generation system, by cable, unnecessary electric energy is transported to sea water pump-storage generator when accumulation of energy, by water pump or Reversible Pump-Turbine, the sea water in storage container is emptied, thus the potential energy converting electrical energy into water stores；
(4) by arranging the second opening of the atmosphere above breather line with sea level on energy-storing container, and being provided with pressure regulating valve on breather line, adjusted pressure regulating valve can regulate the pressure in container.
Accompanying drawing explanation
Fig. 1 is embodiment 1 structural representation of the water storage generating system utilizing subsea pressure energy of the present invention.
Fig. 2 is embodiment 2 structural representation of the water storage generating system utilizing subsea pressure energy of the present invention.
Figure is respectively numbered:
1, pressure pipeline；2, pressure pipeline inlet valve；10, pressure regulating valve；3, Reversible Pump-Turbine；4, sea water pump-storage generator；5, reversible motor generator；6, valve；7, storage container；8, breather line；9, sea level；11, seabed.
Detailed description of the invention
The basic conception of the present invention is, a kind of water storage generating system utilizing subsea pressure energy is provided, including storage container, sea water pump-storage generator and pressure pipeline, described storage container is arranged at seabed, including the first opening, first opening is connected to pressure pipeline, and pressure pipeline is provided with valve；Described sea water pump-storage generator is also disposed on seabed and is connected on pressure pipeline, including fluid machinery and the dynamoelectric machine that is in transmission connection with described fluid machinery.By whole system is placed in seabed, utilize the pressure in seabed can carry out electrical thermal storage and release energy.
During accumulation of energy, described dynamoelectric machine is according to motor mode, and described dynamoelectric machine drives fluid machinery to rotate, and the sea water in storage container is transported in described ocean by described fluid machinery through valve, pressure pipeline；When releasing energy, described dynamoelectric machine is according to generator mode, sea water drives fluid machinery to rotate under the driving of seabed and storage container internal pressure differences, described fluid machinery driving electric/electrical power generators, sea water through fluid machinery, pressure pipeline, valve return to storage container.
Wherein, for storage container, it can also include one second opening, second opening atmosphere above breather line with sea level.Breather line is provided with pressure regulating valve, it is simple to regulate the pressure in described storage container.
Preferably, storage container its be shaped as the shapes such as spherical, cylindrical；It is also preferred that storage container is one or more, it is arranged parallel to each other.
Preferably, storage container can be made up of one or more in precast concrete and high-strength steel sheet.
Wherein, for sea water pump-storage generator, it is also provided with gearshift adjustment system, and described gearshift adjustment system, by changing the rotating speed of described dynamoelectric machine, makes fluid machinery remain to when load variations under efficient operating mode and runs.
Its sea water pump-storage generator can be four machine separated type sea water pump-storage generator, three machine tandem sea water pump-storage generator or two machine reversible sea water pump-storage generator.
Fluid machinery can arrange multiple stage water pump, the hydraulic turbine or Reversible Pump-Turbine, and described multiple stage water pump, the hydraulic turbine or Reversible Pump-Turbine are serial or parallel connection form；In parallel form, each split axle is dynamically connected with main drive shaft.
Preferably, water pump is impeller pump or positive displacement pump, and described impeller pump is axial-flow pump, mixed-flow pump and centrifugal pump, and described positive displacement pump is gear pump, screw pump, lobe pump and sliding-vane pump.
Preferably, the hydraulic turbine is impulse turbine or reaction turbine, described impulse turbine is Pelton wheel, inclined-jet turbine and crossflow turbine, and described reaction turbine is axial flow hydraulic turbine, Francis turbine, inclined flow turbine and tubular turbine.
Preferably, Reversible Pump-Turbine, for mixed-flow, diagonal flow type and tubular.
It addition, in sea water pump-storage generator, when its dynamoelectric machine is according to motor mode, its drive power supply be thermal power generation, nuclear power, wind-powered electricity generation, solar electrical energy generation, water power or tidal power generation etc. therein one or more.
Preferably, the number of sea water pump-storage generator is at least one.
Fluid machinery can choose multiple stage water pump, the hydraulic turbine or Reversible Pump-Turbine, and wherein, described multiple stage water pump, the hydraulic turbine or Reversible Pump-Turbine are serial or parallel connection form；In parallel form, each split axle is dynamically connected with main drive shaft.
Wherein, for pressure pipeline, pipeline is provided with valve, it is simple to the adjustment of storage volume and equipment debugging and maintenance.
Preferably, the porch of pressure pipeline is provided with trash rack, prevents marine organisms from entering pressure pipeline, reduces the operational efficiency of system.
Preferably, storage container and sea water pump-storage generator stake, slip casting, suction anchor or ballast direct pressing are fixed on seabed.
For making the object, technical solutions and advantages of the present invention clearer; the present invention is described in detail below in conjunction with the accompanying drawings; owing to the following stated is only the detailed description of the invention of the present invention; but the protection of the present invention is not limited to this; change that any those skilled in the art are expected or replacement, all contain within protection scope of the present invention.
In the description, same or analogous drawing reference numeral indicates same or analogous parts.Following referring to the drawings explanation to embodiment of the present invention is intended to explain the present general inventive concept of the present invention, and is not construed as a kind of restriction to the present invention.
Specific embodiment 1:
Fig. 1 is the structural representation of embodiments of the invention 1.Wherein, pressure regulating valve 10 is opened, and whole system is placed in seabed 11, and breather line 8 leads to the air in overhead, sea level 9.Storage container 7 is fixed on seabed 11, and its one end is connected with sea water pump-storage generator 4 by valve 6, pressure pipeline 1, and one end connects breather line 8.Wherein sea water pump-storage generator 4 includes Reversible Pump-Turbine 3 and reversible motor generator 5 and gearshift adjustment system, and Reversible Pump-Turbine 3 is affixed with the power transmission shaft of reversible motor generator 5.
The present invention utilizes the water storage generating system of subsea pressure energy when accumulation of energy, pressure pipeline inlet valve 2 and valve 6 are opened, Reversible Pump-Turbine 3 in low ebb (at a low price) electric drive sea water pump-storage generator 4, is discharged into the sea water in storage container 7 in ocean by pressure pipeline 1.Accumulation of energy process terminates, and valve 6 is closed.
The present invention utilizes the water storage generating system of subsea pressure energy when releasing energy, pressure pipeline inlet valve 2 and valve 6 are opened, sea water, because pressure differential enters storage container 7 and drives the Reversible Pump-Turbine 3 in sea water pump-storage generator 4 externally to do work, drives reversible motor generator 5 to generate electricity.Exoergic process terminates, and valve 6 is closed.
Generally, running when accumulation of energy is different from exoergic process, during accumulation of energy, sea water pump-storage generator is operated in water pump-electric motor mode.Releasing during energy then contrary, sea water pump-storage generator is operated in the hydraulic turbine-generator mode.
Specific embodiment 2:
Fig. 2 is the structural representation of embodiments of the invention 2.Wherein, pressure regulating valve 10 is closed, and whole system is placed in seabed 11, and storage container 7 is fixed on seabed 11, and its one end is connected with sea water pump-storage generator 4 by valve 6, pressure pipeline 1.Wherein sea water pump-storage generator 4 includes Reversible Pump-Turbine 3 and reversible motor generator 5, and Reversible Pump-Turbine 3 is affixed with the power transmission shaft of reversible motor generator 5.Compared with Example 1, storage container internal gas pressure subatmospheric in embodiment 2.
The present invention utilizes the water storage generating system of subsea pressure energy when accumulation of energy, pressure pipeline inlet valve 2 and valve 6 are opened, Reversible Pump-Turbine 3 in low ebb (at a low price) electric drive sea water pump-storage generator 4, sea water in storage container 7 is discharged in ocean by pressure pipeline 1, makes gas pressure subatmospheric in storage container 7.Thermal energy storage process terminates, and valve 6 is closed.
The present invention utilizes the water storage generating system of subsea pressure energy when releasing energy, pressure pipeline inlet valve 2 and valve 6 are opened, sea water, because pressure differential enters storage container 7 and drives the Reversible Pump-Turbine 3 in sea water pump-storage generator 4 externally to do work, drives reversible motor generator 5 to generate electricity.Exoergic process terminates, and valve 6 is closed.
Generally, running when accumulation of energy is different from exoergic process, during energy storage, pump-storage generator is operated in water pump-electric motor mode.Releasing during energy then contrary, sea water pump-storage generator is operated in the hydraulic turbine-generator mode.
The present invention utilizes in the water storage generating system of subsea pressure energy, sea water pump-storage generator 4 both can use two machine reversible sea water pump-storage generator, can also use four machine separated type sea water pump-storage generator and three machine tandem sea water pump-storage generator, its workflow is also identical with the embodiment above with principle.
Unnecessary electric energy is transported to sea water pump-storage generator when accumulation of energy by cable by the present invention, is emptied by the sea water in storage container by water pump or Reversible Pump-Turbine, thus the potential energy converting electrical energy into water stores.When releasing energy, owing to the pressure in memorizer is atmospheric pressure or subatmospheric, there is certain pressure differential with seabed, sea water is stressed to differ from and is driven into storage container, simultaneously drives the hydraulic turbine or Reversible Pump-Turbine generating.System utilizes the pressure in seabed can carry out electric power storage, and whole system is placed in seabed, effectively overcomes the problems such as tradition pumped storage addressing difficulty, range of stage is big, rely on freshwater resources greatly, effect on environment is big, relatively costly.
Above-described it is embodied as case, the purpose of the present invention, technical scheme and beneficial effect are further described.Be it should be understood that the foregoing is only the present invention is embodied as case, be not limited to the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (10)
1. utilize subsea pressure can a water storage generating system, draw water storage including storage container, sea water
Energy unit and pressure pipeline, it is characterised in that:
Described storage container is arranged at seabed, and including the first opening, the first opening is connected to pressure
Pipeline, pressure pipeline is provided with valve；
Described sea water pump-storage generator is arranged at seabed and is connected on described pressure pipeline, described sea
Water pump-storage generator includes the fluid machinery being connected with pressure pipeline and passes with described fluid machinery
The dynamoelectric machine being dynamically connected.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature exists
In, described storage container also includes one second opening, and the second opening is through breather line and sea level
The atmosphere of top.
The water storage generating system utilizing subsea pressure energy the most according to claim 2, its feature exists
In, described breather line is provided with pressure regulating valve.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature exists
In, described sea water pump-storage generator is provided with the gearshift adjustment system being connected with dynamoelectric machine.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature exists
In, the porch of described pressure pipeline connection sea water is provided with trash rack.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature exists
In: described storage container, it is shaped as spherical or cylindrical；Preferably, described storage container is one
Or multiple, it is arranged parallel to each other.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature exists
In: described storage container and sea water pump-storage generator stake, slip casting, suction anchor or ballast are direct
Compacting is fixed on seabed.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature exists
In: when described dynamoelectric machine is according to motor mode, it drives power supply to be thermal power generation, core
Electricity, wind-powered electricity generation, solar electrical energy generation, water power or tidal power generation etc. therein one or more.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature exists
In: described sea water pump-storage generator is four machine separated type sea water pump-storage generator, three machine tandems
Sea water pump-storage generator or two machine reversible sea water pump-storage generator；Preferably, described sea water is taken out
Water accumulation of energy unit is at least 1.
The water storage generating system utilizing subsea pressure energy the most according to claim 1, its feature
It is: described fluid machinery includes multiple stage water pump, the hydraulic turbine or Reversible Pump-Turbine, described many
Platform water pump, the hydraulic turbine or Reversible Pump-Turbine are serial or parallel connection form；In parallel form, respectively
Split axle is dynamically connected with main drive shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610497832.8A CN105927455A (en) | 2016-06-29 | 2016-06-29 | Water storage power generation system using seabed pressure energy |
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| CN201610497832.8A CN105927455A (en) | 2016-06-29 | 2016-06-29 | Water storage power generation system using seabed pressure energy |
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| CN109038681A (en) * | 2018-09-29 | 2018-12-18 | 张耀辰 | A kind of sea autonomous power supply system |
| CN109882344A (en) * | 2018-10-15 | 2019-06-14 | 张建洪 | Wave-power device |
| CN110778442A (en) * | 2019-10-16 | 2020-02-11 | 华南理工大学 | Method and system for improving peak shaving power supply energy efficiency by using vertical pipe to charge and discharge seawater for energy storage |
| WO2021219854A1 (en) * | 2020-04-30 | 2021-11-04 | Schmidt Boecking Horst | Modular underwater pumped-storage power plant reservoir |
| CN114876704A (en) * | 2022-05-06 | 2022-08-09 | 山东电力工程咨询院有限公司 | Compressed air and seawater pumping and storage coupling energy storage system and method |
| WO2023135168A1 (en) * | 2022-01-11 | 2023-07-20 | Joseph Blake | Deep water powered electricity generating system |
| EP4286681A1 (en) * | 2022-05-31 | 2023-12-06 | Sulzer Management AG | Energy storage system |
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| CN109882344A (en) * | 2018-10-15 | 2019-06-14 | 张建洪 | Wave-power device |
| CN110778442A (en) * | 2019-10-16 | 2020-02-11 | 华南理工大学 | Method and system for improving peak shaving power supply energy efficiency by using vertical pipe to charge and discharge seawater for energy storage |
| WO2021219854A1 (en) * | 2020-04-30 | 2021-11-04 | Schmidt Boecking Horst | Modular underwater pumped-storage power plant reservoir |
| WO2023135168A1 (en) * | 2022-01-11 | 2023-07-20 | Joseph Blake | Deep water powered electricity generating system |
| CN114876704A (en) * | 2022-05-06 | 2022-08-09 | 山东电力工程咨询院有限公司 | Compressed air and seawater pumping and storage coupling energy storage system and method |
| EP4286681A1 (en) * | 2022-05-31 | 2023-12-06 | Sulzer Management AG | Energy storage system |
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Application publication date: 20160907 |