EP3914822A1 - Procédé et dispositif de stockage d'énergie - Google Patents

Procédé et dispositif de stockage d'énergie

Info

Publication number
EP3914822A1
EP3914822A1 EP19828551.2A EP19828551A EP3914822A1 EP 3914822 A1 EP3914822 A1 EP 3914822A1 EP 19828551 A EP19828551 A EP 19828551A EP 3914822 A1 EP3914822 A1 EP 3914822A1
Authority
EP
European Patent Office
Prior art keywords
container
water
ballast
sea
pneumatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19828551.2A
Other languages
German (de)
English (en)
Inventor
Mauro Pedretti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3914822A1 publication Critical patent/EP3914822A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
    • F02C6/16—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
    • 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
    • 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
    • F03B17/00—Other machines or engines
    • F03B17/02—Other machines or engines using hydrostatic thrust
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H02J15/003—Systems for storing electric energy in the form of hydraulic energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/50—Energy storage in industry with an added climate change mitigation effect

Definitions

  • the present invention relates to a method for storing energy according to claim 1 and a pneumatic energy store according to claim 6.
  • Concrete containers with a diameter of 30 m and a wall thickness of 3 m are to be positioned at a depth of 600 m to 800 m and connected to a power plant on land via a power line, with a storage capacity of 20 MWh per container.
  • Each concrete container has an equalization line that connects its interior with the surrounding sea.
  • the container is partially or completely formed from flexible walls, it can be made particularly simple and inexpensive.
  • the anchoring can also be carried out easily and cheaply, e.g. by simply covering the container with the seabed dredged in its vicinity, which does not pose any major problems even at depths of 800 m.
  • the flexible container can absorb local deformations at the bottom or through the ballast, which considerably simplifies the installation of an energy store according to the invention on the bottom of a body of water and contributes to the low overall costs of energy storage.
  • FIG. 1 schematically shows a pneumatic energy store according to the invention
  • FIG. 2a shows the pressure conditions in the energy store according to FIG. 1 when it is filled with compressed fluid
  • FIG. 2b shows the pressure conditions in the energy store according to FIG. 1 when the compressed fluid has been removed from it
  • FIG. 3 shows schematically the container of the pneumatic energy store, with flexible walls adapted to the surroundings
  • FIG. 4 schematically, yet another embodiment of the pneumatic energy store according to the invention
  • Figure 5 is a diagram relating to the cost of energy storage
  • FIG. 6 shows a diagram relating to the storage capacity.
  • FIG. 1 schematically shows a cross section through a preferred embodiment of the pneumatic energy store 1 according to the invention, which has a container 2, all of its outer walls 3 being made of a flexible material.
  • the energy storage 1 be found below a water surface 4 and rests with a wall section 5 on the bottom 6 of a body of water such as a sea, a lake or a reservoir.
  • the flexible walls 3 are preferably formed from a plastic membrane which has polyester / PVC, rubber or coated polyester fabric. Other fabrics, for example with glass fiber, Kevlar or other synthetic fabrics can also be used.
  • the flexible len walls 3 can also be partially rigid in the specific case, for example in the area of the wall section 5 resting on the floor or at the location of a pressure line 7 for compressible fluid to be stored or at the location of a compensating line 8 which connects the container 2 with the surrounding water connects.
  • the entire container 2 is preferably formed by a flexible material.
  • the pressure line 7 is arranged on an upper region of the container 2 and is preferably connected to a compressor turbine arrangement 10, which is only symbolically shown in the figure, and which is more preferably located on land and by the energy of a power plant (for example a solar power plant or a wind power plant or a different type of power plant) is driven.
  • a compressor of the compressor turbine arrangement 10 can, for example, suck in ambient air (or another, compressible fluid), compress it and pump it through the pressure line 7 into the container 2.
  • a turbine of the compressor turbine arrangement 10 can be driven by compressed fluid (for example air) originating from the container 2 and thus generate electricity, for example.
  • an existing valve in the pressure line 7 for its closure or opening is removed.
  • the compensating line 8 is arranged on a lower region of the container 2 and has an opening 11, which is preferably in the region of the height of the wall section 5, ie in the region of the bottom 6 of the water.
  • a pump turbine arrangement 12 which is only shown symbolically here, is also connected to the compensation line 8.
  • the double arrow 14 shows the two flow directions through the compensating line 8 and the pump turbine arrangement 12.
  • a valve for the closing or opening of the compensating line 8 is just not shown in this figure to relieve the figure.
  • the pump tubing arrangement 12 is preferably located on the bottom 6 of the water, but can also be provided on land, for example at the location of the compressor turbine arrangement 10.
  • the container 2 is covered with ballast 15 in such a way that it rests on the base 2 in an operationally reliable manner even when the energy store 1 is fully loaded.
  • the ballast 15 preferably completely covers the container 2, as shown in the figure. More preferably, the ballast 15 consists of bulk material such as gravel or sand, with material for the ballast 15 also or exclusively being used for the reason 6, for example at the location of the energy store 1 (it is possible today with low costs, even in considerable amounts) Deep dredging the seabed and deliberately depositing the material).
  • the container 2 is preferably provided with a flat contour, such that its horizontal dimension b is a multiple of its height h, preferably twice or more, particularly preferably triple or more, very particularly preferably five times or ten times or more.
  • a contour allows, for example, the lens shape indicated in the figure, which is particularly advantageous with regard to the use of bulk material as ballast 15. Therefore, the inclination of an upper wall section 17 of the container 2 is more preferably kept below 30 degrees. It should be noted at this point that the ballast 15 must at least compensate for its buoyancy at every location of the container 2, so that less ballast 15 is required at the edges of the container 2 than in its central region in the lens shape shown in the figure, which is shown by the different thickness of the ballast 15 shown.
  • the container 2 is provided with webs 9 which serve to give the container 2 a desired shape or to define its contour.
  • the webs 9 are preferably tensile and can be made of the same flexible material as the flexible walls of the container 2.
  • the webs 9 are ten case in connection with the provided ballast 15 arranged such that the container 2 retains the intended contour during operation and can be operated with the intended operating volume.
  • FIG. 1 the dotted lines further show an imaginary area 16 of the container 2, which extends over its entire flea h.
  • the flea of the water column of the water from the bottom 6 to the water surface is Fl.
  • this imaginary area 16 the pressure conditions in the underwater energy store according to the invention are explained below in the description of FIGS. 2a and 2b.
  • the container 2 of the underwater energy store is only partially provided with flexible outer walls 3.
  • Rigid outer walls 3 can be provided in the specific case, for example at the location of the compressed air line 7 or the compensating line 8, or also in the floor or ceiling area of the container 2.
  • An advantage of the present invention is that the container only has to be designed for a pressure load in the amount of the pressure of a water column from the fleas h of the container - the depth of the sea or lake bottom 6 or the fleas Fl up to the water surface 4 does not matter, s. in addition, as mentioned, the description below for FIGS. 2a and 2b.
  • the result is a method for storing energy in the form of a compressed fluid which is pumped into a container (2) arranged under a water surface for storing energy, the container (2) being located on a sea bed (6) or a lake bed ( 6) arranged and weighed down by ballast (15) in such a way that it is pressed against the sea or lake bed in the operating position (6) even when fully filled by the compressible fluid, and according to the volume of the container (2 ) Compressed fluids from a pre-existing filling of water emitted it into the surrounding water, and, according to the volume of the compressed fluid removed from the container (2), surrounding water flows back into the container (2), water used in the container (2) being used to drive a turbine and Water flowing into the container (2) is pumped into it.
  • a corresponding pneumatic underwater energy store has a container (2) for compressible fluid, the container (2) resting on a sea bed or lake bed (6) and covered by ballast (15) such that it is fully loaded by the compressible Fluid remains pressed against the sea floor or lake bed (6), a pressure line (7) for compressible fluid opening into an upper region of the container (2), and an equalization line (8) provided in a lower region of the container (2) ) connects the inside of the container (2) with the surrounding water, and a pump-turbine arrangement (12) connected to the compensation line (8) is also provided, which is designed to operate the underwater energy store (1) via the compensation line (8) according to the volume of the inflowing compressible fluid to release water from the container (2) by a turbine into the surrounding water and according to the volume n Pump water surrounding compressible fluid released from the container (2) into the container by means of a pump.
  • FIG. 2a shows the imaginary area 16 in the container 2 (see also FIG. 1) when it is completely loaded with compressed fluid, preferably air.
  • compressed fluid preferably air.
  • This air generates a buoyancy symbolized by the vector A corresponding to the water displaced by it, here accordingly the volume of the imaginary region 16.
  • the weight of the symbolized by the vector B must Ballasts 15 correspond at least to the buoyancy A, so that its weight corresponds at least to the weight of the water displaced by the air.
  • the vector W symbolizes the weight of the water over the imaginary area 16.
  • F denotes the cross-sectional area of the imaginary area 16.
  • the energy storage device 1 is filled with compressible fluid, there is therefore an overpressure in relation to the surrounding water, which increases with the fleas h and corresponds to the pressure in a water column with this fleas.
  • This overpressure is independent of the depth of the bottom 6 or the fleas Fl of the water.
  • FIG. 2b shows the imaginary area 16 in the container 2 when it has no compressed fluid and is therefore completely filled with water.
  • pl FHy
  • the fleas h is small compared to its width b, i.e. its (over) pressure load low.
  • the ballast 15 can absorb this pressure load with a suitable design, which allows the container 2 to be made from a flexible material that does not have to show any special properties, that is to say can be manufactured cheaply.
  • the webs 9 ( Figure 1) keep the contour of the loading container 2 in the desired shape.
  • the container 2 preferably switches back and forth between a state loaded with compressible fluid according to FIG. 2a and a state filled with water according to FIG. 2b, in that the container 2 cyclically, for example, via the compressor of the compressor turbine arrangement 10 filled with compressed air and emptied via its turbine.
  • the energy store 1 it is also possible to run the energy store 1 with an irregular cycle, ie to fill the container 2 only partially with compressible fluid.
  • the exchange of compressed fluid (air) and water into and out of the container 2 is always volume-neutral, ie the volume of the water flowing in and out of the container corresponds to the volume of the compressed fluid pumped into or removed from the container 2.
  • FIG. 3 shows a cross section through the container 2 of the energy store 1 or 20 in the operating state, the illustration being somewhat exaggerated due to a real deformation of the container 2 compared to the ideal contour.
  • the pressure line 7, the compensation line 8 and the compressor turbine arrangement 10 (FIG. 1) are omitted.
  • Flexible wall sections 23 of the container 2 easily adapt to the contour of the sea or lake bed, as well as upper, flexible wall sections 24 with a view of the ballast 15 and the pressure exerted by the ballast 15 (deformations also during loading of the container 2 with ballast 15 or in operation during loading or unloading of the energy store 1.20).
  • An expensive, rigid and pressure-resistant design is unnecessary, and in addition a container 2 formed by a flexible membrane is not only inexpensive to manufacture, but also inexpensive to position on the sea floor and to be loaded with ballast.
  • FIG. 4 shows an alternative arrangement of a plurality of containers 24 of a pneumatic energy store 30.
  • These containers can be spherical or tubular and can be embedded in a prepared fill 25 on the sea bed or lake bed.
  • a filling can be provided in the specific case, e.g. on partially rocky or very uneven ground, e.g. when it must be assumed that the flexible membrane of the container could be overstressed locally during operation.
  • a possible local filling is less expensive than other constructions with rigid containers. Most of the sandy formations of the sea or lake bed can be avoided in a specific case.
  • FIGS. 5 and 6 show an estimate for the cost of the stored energy in the diagram 35 and for the amount of energy that can be stored as a function of the water depth in the diagram 36.
  • the rough calculation is based on an energy store according to the present invention, which is carried out completely has a flexible membrane formed container for compressed air, the container lying on the seabed at a depth of 40m and covered by sea sand which has been sucked in by a suction dredger and laid on the container.
  • the inclination of the flexible membrane at the edge of the container ters 30 degrees, which is lenticular and has a diameter of 50m and a maximum height (in the middle) of 6.7m.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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

L'invention concerne un procédé de stockage d'énergie sous la forme d'un fluide comprimé qui, pour le stockage de l'énergie, est pompé dans un récipient (2) disposé sous une surface d'eau (4). Selon l'invention, le fluide qui pénètre dans le récipient déplace une charge de remplissage d'eau préexistante hors de celui-ci dans l'eau environnante, et du fluide comprimé est prélevé du récipient (2) pour le soutirage d'énergie, l'eau environnante s'écoulant de nouveau dans le récipient en fonction du volume de fluide comprimé prélevé. L'invention est caractérisée en ce que le récipient (2) est pourvu au moins partiellement de parois flexibles et est disposé sur un fond de mer (6) ou un fond de lac (6) et y est recouvert par un lest (15), de sorte qu'il est poussé contre le fond même lorsqu'il est entièrement rempli de fluide compressible.
EP19828551.2A 2019-01-23 2019-12-11 Procédé et dispositif de stockage d'énergie Pending EP3914822A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00074/19A CH715771A2 (de) 2019-01-23 2019-01-23 Verfahren und Vorrichtung zum Speichern von Energie.
PCT/CH2019/050032 WO2020150840A1 (fr) 2019-01-23 2019-12-11 Procédé et dispositif de stockage d'énergie

Publications (1)

Publication Number Publication Date
EP3914822A1 true EP3914822A1 (fr) 2021-12-01

Family

ID=69055625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19828551.2A Pending EP3914822A1 (fr) 2019-01-23 2019-12-11 Procédé et dispositif de stockage d'énergie

Country Status (12)

Country Link
US (1) US20230193871A1 (fr)
EP (1) EP3914822A1 (fr)
JP (1) JP2022518818A (fr)
KR (1) KR20210121110A (fr)
CN (1) CN113677885A (fr)
AU (1) AU2019424851A1 (fr)
CA (1) CA3127543A1 (fr)
CH (1) CH715771A2 (fr)
CL (1) CL2021001941A1 (fr)
MA (1) MA54795A (fr)
MX (1) MX2021008892A (fr)
WO (1) WO2020150840A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH719516A2 (de) * 2022-03-18 2023-09-29 Pedretti Mauro Aussendruck-Fluidspeicher für die Speicherung von Energie.
CN115419541B (zh) * 2022-08-12 2023-10-13 中国电建集团华东勘测设计研究院有限公司 基于地质能的柔性抽水蓄能系统及其工作方法

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US3996741A (en) * 1975-06-05 1976-12-14 Herberg George M Energy storage system
JPS6037316B2 (ja) * 1977-06-28 1985-08-26 工業技術院長 加圧水型エネルギ−利用方法
CH640601A5 (de) * 1979-09-07 1984-01-13 Bbc Brown Boveri & Cie Gleichdruckluftspeicheranlage mit wasservorlage fuer gasturbinenkraftwerke.
EP1971773A1 (fr) * 2005-12-07 2008-09-24 The University Of Nottingham Génération d énergie
US7743609B1 (en) * 2008-02-06 2010-06-29 Florida Turbine Technologies, Inc. Power plant with energy storage deep water tank
WO2010141079A1 (fr) * 2009-06-05 2010-12-09 Steven Ivy Système de stockage d'énergie
WO2011038140A2 (fr) * 2009-09-23 2011-03-31 Brightearth Technologies, Inc. Système de stockage sous-marin d'énergie hydraulique comprimée
EP2593676A4 (fr) * 2010-07-14 2016-06-01 Bright Energy Storage Technologies Llp Système et procédé de stockage de l'énergie thermique
DE102011012261A1 (de) * 2011-02-24 2012-08-30 Werner Rau Tankspeicher Kraftwerk
US8904792B2 (en) * 2011-05-05 2014-12-09 Chevron U.S.A. Inc. Method and system for storing energy and generating power heat in a subsea environment
WO2013119327A1 (fr) * 2012-02-09 2013-08-15 Leonid Goldstein Stockage d'énergie thermodynamique
JP6305756B2 (ja) * 2013-12-24 2018-04-04 日立三菱水力株式会社 揚水発電装置
EP3094575A4 (fr) * 2014-01-15 2017-11-29 Bright Energy Storage Technologies, LLP Système de stockage d'énergie submergé utilisant un fluide comprimé
GB2532074B (en) * 2014-11-09 2017-06-21 James Macdonald Farley Francis Wave power converter
IL237204A0 (en) * 2015-02-12 2015-06-30 Univ Malta Hydro-pneumatic energy storage system
US10707802B1 (en) * 2017-03-13 2020-07-07 AquaEnergy, LLC Pressurized pumped hydro storage system
FR3068739A1 (fr) * 2017-07-06 2019-01-11 Laurent Cohen Dispositif de stockage d'energie electrique dans des reservoirs sous-marins

Also Published As

Publication number Publication date
MA54795A (fr) 2022-04-27
CH715771A2 (de) 2020-07-31
AU2019424851A1 (en) 2021-09-09
WO2020150840A1 (fr) 2020-07-30
CL2021001941A1 (es) 2022-02-04
KR20210121110A (ko) 2021-10-07
CA3127543A1 (fr) 2020-07-30
JP2022518818A (ja) 2022-03-16
US20230193871A1 (en) 2023-06-22
CN113677885A (zh) 2021-11-19
MX2021008892A (es) 2022-01-04

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