DE102006003982A1 - Wind turbine generated electrical energy is stored by using pumped fluid in underground chambers - Google Patents
Wind turbine generated electrical energy is stored by using pumped fluid in underground chambers Download PDFInfo
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- DE102006003982A1 DE102006003982A1 DE102006003982A DE102006003982A DE102006003982A1 DE 102006003982 A1 DE102006003982 A1 DE 102006003982A1 DE 102006003982 A DE102006003982 A DE 102006003982A DE 102006003982 A DE102006003982 A DE 102006003982A DE 102006003982 A1 DE102006003982 A1 DE 102006003982A1
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- Germany
- Prior art keywords
- liquid
- electrical energy
- erdkrustenhöhle
- basin
- turbine
- Prior art date
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- 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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/13—Combinations of wind motors with apparatus storing energy storing gravitational potential energy
- F03D9/14—Combinations of wind motors with apparatus storing energy storing gravitational potential energy using liquids
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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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/28—Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor
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- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Power Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Speichern elektrischer Energie, insbesondere von durch Windkraftanlagen erzeugter elektrischer Energie, vorzugsweise im räumlichen Bereich der Windkraftanlagen, in Form von potentieller Energie. Die Erfindung betrifft des weiteren eine Vorrichtung zum Speichern elektrischer Energie, umfassend zumindest eine Pumpe für eine Flüssigkeit, vorzugsweise zur Durchführung des vorgenannten Verfahrens.The Invention relates to a method for storing electrical energy, in particular, electrical energy generated by wind turbines, preferably in spatial Range of wind turbines, in the form of potential energy. The invention further relates to a device for storing electrical energy, comprising at least one pump for a liquid, preferably for carrying out the aforementioned method.
Die Anforderung, elektrische Energie zu speichern, besteht häufig. Der Energieverbrauch in einem räumlichen Gebiet schwankt. Eine Schwankung ist beispielsweise über den Tagesablauf gegeben, in dem z.B. morgens und abends viele Privatanwender elektrische Energie benötigen oder bestimmte Industriebetriebe zu definierten Zeiten Energiemengen benötigen. Es treten sogenannte Lastspitzen auf.The Requirement to store electrical energy often exists. Of the Energy consumption in a spatial Area is fluctuating. A fluctuation is for example over the Given daily routine in which e.g. many private users in the morning and in the evening need electrical energy or certain industries at defined times of energy need. There are so-called load peaks.
Ein weiteres Problem ist, daß mit einigen Energieerzeugern nicht kontinuierlich elektrische Energie erzeugt werden kann. Ein Beispiel dafür sind Windkraftanlagen, die bei guten Windverhältnissen elektrische Energie erzeugen können, aber bei Windstille keine Energie erzeugen. Häufig wird bei guten Windverhältnissen soviel elektrische Energie erzeugt, die aufgrund des Betriebes der anderen Energieerzeuger nicht sinnvoll genutzt werden kann.One Another problem is that with Some energy producers do not have continuous electrical energy can be generated. An example of this are wind turbines, the in good wind conditions electrical Can generate energy, but do not generate energy when there is no wind. Frequently, in good wind conditions generates so much electrical energy due to the operation of the other energy producers can not be used meaningfully.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren aufzuzeigen, mit dem überschüssige erzeugte elektrische Energie insbesondere von Windkraftanlagen in großem Umfang auf preiswerte Weise gespeichert werden kann. Darüber hinaus soll eine Vorrichtung geschaffen werden, mit der dieses Verfahren durchführbar ist.Of the Invention has for its object to provide a method with the excess generated Electrical energy in particular of wind turbines on a large scale can be stored in a cheap way. Furthermore a device is to be created with which this method feasible is.
Verfahrensseitig ist diese Aufgabe erfindungsgemäß dadurch gelöst, daß die elektrische Energie zum Antrieb von wenigstens einer Pumpe eingesetzt wird, wobei mit der Pumpe eine Flüssigkeit aus dem Bodenbereich einer Erdkrustenhöhle gehoben wird und wobei diese Flüssigkeit bei einem Zurückfließen in den Bodenbereich durch zumindest eine Turbine geführt wird.the method, This object is achieved by the invention solved, that the electrical energy used to drive at least one pump being, with the pump being a liquid from the bottom area a crusted cave is lifted and being this liquid when flowing back into the Floor area is guided by at least one turbine.
Überschüssige elektrische Energie kann zum Antrieb von Pumpen eingesetzt werden, um eine Flüssigkeit anzuheben. Die elektrische Energie wird dadurch in eine potentielle Energie umgewandelt, da die Flüssigkeit aufgrund ihrer Schwerkraft wieder in ein tieferes Niveau zurückfließen kann und die von der Flüssigkeit bei diesem Zurückfließen bereitgestellte Kraft durch Turbinen und Generatoren ausgenutzt werden kann. Eine derartige Speicherung von elektrischer Energie ist durch Pumpspeicherwerke in bergigen Gegenden bekannt.Excess electrical Energy can be used to drive pumps to a liquid to raise. The electrical energy is thereby in a potential Energy is converted as the liquid due to its gravity can flow back to a lower level and that of the liquid provided with this backflow Power can be exploited by turbines and generators. A Such storage of electrical energy is pumped storage known in mountainous areas.
Die Erfindung schlägt aber nun vor, eine derartige Pumpspeicheranlage im Bereich von Windkraftanlagen anzuordnen, die regelmäßig im Küstenmeer, z.B. in der Nordsee, in Meeresnähe oder im Flachland stationiert sind oder werden. Um in diesem flachen Gelände eine derartige Pumpspeicheranlage zu installieren, schlägt die Erfindung vor, ein unteres Becken eines Pumpspeicherwerkes in dem Bodenbereich einer Erdkrustenhöhle anzuordnen. Erdkrustenhöhlen dieser Art sind tiefe geologische Hohlraum-Formationen, beispielsweise künstliche Kavernen, die nach Ausnutzung von Salzlagerstätten in der Erdkruste geschaffen wurden. Insbesondere in flachen Gegenden, z.B. im Norden Deutschlands, sind durch Salzstöcke die geologischen Voraussetzungen für die preiswerte Schaffung von Kavernen gegeben. Derartige Erdkrustenhöhlen haben große Volumen, so daß entsprechend große Flüssigkeitsvolumen eingesetzt werden können. Durch das Anheben einer Flüssigkeit in einer hohen Erdkrustenhöhle oder in eine zweite, höher gelegene Erkrustenhöhle können somit elektrische Energien einer Vielzahl von Energieerzeugern, z.B. Windkraftanlagen, zwischengespeichert werden. Handelt es sich bei der Erdkrustenhöhle um einen Salzstock, so können dessen Wände gegen ein weiteres Lösen von Salz mit einer Auskleidung versehen sein.The Invention proposes but now before, such a pumped storage plant in the field of wind turbines regularly in the territorial sea, e.g. in the North Sea, near the sea or stationed in the lowlands. To be flat in this terrain To install such a pumped storage plant, proposes the invention before, a lower basin of a pumped storage plant in the ground area a crusted cave to arrange. Erdkrustenhöhlen of this type are deep geological cavity formations, for example artificial Caverns created after exploiting salt deposits in the earth's crust were. Especially in flat areas, e.g. in the north of Germany, are by salt sticks the geological conditions for the cheap creation given by caverns. Such Erdkrustenhöhlen have large volumes, so that accordingly size liquid volume can be used. By lifting a liquid in a high crustal cavity or in a second, higher located Erkrustenhöhle can thus electrical energies of a plurality of power generators, e.g. Wind turbines, be cached. Is it the Erdkrustenhöhle to a Salt dome, so can its walls against another release salted with a lining.
Nach einer Weiterbildung der Erfindung ist vorgesehen, daß als Flüssigkeit eine Salzlauge eingesetzt wird. Eine derartige Salzlauge hat insbesondere dann, wenn sie gesättigt ist, eine höhere Dichte als z.B. Wasser. Mit einer derartigen Flüssigkeit können entsprechende Kräfte auf die Leitschaufeln einer Turbine übertragen werden, mit der dann ein Generator angetrieben wird. Bei einem Zurückfließen der Flüssigkeit in den Bodenbereich der Erdkrustenhöhle wird somit die potentielle Energie dieser Flüssigkeit wieder in elektrische Energie umgesetzt. Dieses Zurückfließen in den Bodenbereich kann gezielt ausgelöst werden, nämlich zu einem Zeitpunkt, wenn Lastspitzen der Verbraucher abzudecken sind oder wenn bei Windstille keine Energie mit Windkraftanlagen erzeugt werden kann.To a development of the invention is provided that as a liquid a brine is used. Such a brine in particular then when she is saturated is a higher one Density as e.g. Water. With such a liquid corresponding forces can transmit the vanes of a turbine be, with which then a generator is driven. When the liquid flows back into the bottom area of the Erdkrustenhöhle is thus the potential Energy of this liquid again converted into electrical energy. This backflow into the ground area can targeted triggered be, namely at a time when peak loads cover the consumer or if there is no wind with no wind power can be generated.
Ist die Erdkrustenhöhle unterhalb eines Meeresabschnittes angeordnet, so kann als Flüssigkeit Meerwasser eingesetzt werden. Auch dieses Meerwasser hat einen Salzanteil. Es kann durch eine Turbine hindurch in eine Erdkrustenhöhle einfließen und mit Hilfe überschüssiger elektrischer Energie beispielsweise im Meer angeordneter Windkraftanlagen kann das Meerwasser wieder aus der Erdkrustenhöhle herausgepumpt werden.is the crustal cavity arranged below a section of the sea, seawater can be used as liquid be used. Also this seawater has a salt content. It can flow through a turbine into a Erdkrustenhöhle and with Help excess electrical Energy, for example, arranged in the sea wind turbines can the seawater will be pumped out of the earth crust cave again.
Für die Aufnahme der Flüssigkeit im höheren Niveau kann nach einer Weiterbildung des erfindungsgemäßen Verfahrens ein oberhalb oder unterhalb der Erdoberfläche angeordnetes Becken eingesetzt werden. Es ist also möglich, das gesamte Verfahren unterhalb der Erdoberfläche durchzuführen, so daß es von der Umgebung kaum wahrgenommen wird. Ist an der Oberfläche jedoch gegebenenfalls ein natürliches Becken vorhanden, kann auch dieses eingesetzt werden. In dem Becken abgeschiedene Salzkristalle können dabei abgeführt werden, z.B. zu einer wirtschaftlichen Verwertung.For receiving the liquid in the higher level, a tank arranged above or below the earth's surface can be used according to a development of the method according to the invention. So it is possible that the whole Ver drive below the earth's surface, so that it is barely perceived by the environment. If, however, a natural basin is present on the surface, this too can be used. In the basin separated salt crystals can be removed, for example, to an economic recovery.
Die vorrichtungsseitige Lösung der Aufgabe, für die selbständiger Schutz beansprucht wird, zeichnet sich dadurch aus, daß die Pumpe für die Flüssigkeit in einer Halteeinrichtung gehalten ist, welche Anschlagmittel zum Anschlagen im Bereich einer Erdkrustenhöhle aufweist.The device-side solution the task, for the self-employed Protection is claimed, characterized in that the pump for the liquid is held in a holding device, which stop means for Hitting in the region of a Erdkrustenhöhle has.
Die Pumpe zum Pumpen der Flüssigkeit aus dem Bodenbereich der Erdkrustenhöhle in das auf dem höheren Niveau angeordnete Becken wird somit etwa auf der Höhe des Bodens der Erdkrustenhöhle angeordnet. Damit erfolgt die Anordnung tief, so daß die Pumpe der zu fördernden Flüssigkeit unmittelbar zugeordnet ist. Auf ihrem Weg von dem Bodenbereich der Erdkrustenhöhle zu dem an der Oberfläche angeordneten Becken kann die Flüssigkeit auch mit mehreren Pumpen bewegt werden. Die elektrische Energie für den Antrieb der Pumpen wird beispielsweise von Windkraftanlagen bereitgestellt, wenn diese z.B. bei Starkwinden eine überschüssige Energie produzieren, die im Netz des örtlichen Netzversorgers keine aktuelle Verwendung findet.The Pump for pumping the liquid from the bottom of the crustal cavity to the higher level arranged pool is thus placed approximately at the level of the bottom of Erdkrustenhöhle. Thus, the arrangement is deep, so that the pump to be funded liquid is assigned directly. On her way from the bottom area of the Erdkrustenhöhle to the arranged on the surface Basin can be the liquid also be moved with several pumps. The electrical energy for the Drive the pumps is provided for example by wind turbines, if these e.g. produce excess energy in strong winds, in the network of the local Network provider finds no current use.
Die
Turbine ist möglichst
tief angeordnet, um eine möglichst
hohe Fallhöhe
der Flüssigkeit
für den Antrieb
der Turbine zu gewährleisten.
Pumpe und Turbine können
ein und dasselbe Bauteil sein:
Für den Fall der Flüssigkeit
wird dabei vorzugsweise ein Flüssigkeitsleitungssystem
verwendet, das als Teil der Vorrichtung zwischen dem Becken auf
dem höheren
Niveau und der Turbine verlaufend in der Erdkrustenhöhle angeordnet
ist.The turbine is arranged as deep as possible in order to ensure the highest possible drop height of the liquid for the drive of the turbine. Pump and turbine can be one and the same component:
In the case of the liquid, a liquid line system is preferably used, which is arranged as part of the device between the basin at the higher level and the turbine running in the Erdkrustenhöhle.
Nach einer nächsten Weiterbildung der erfindungsgemäßen Vorrichtung ist vorgesehen, daß das Flüssigkeitsleitungssystem im Bereich des Beckens einen Siphon aufweist. Durch den Siphon ist in das Flüssigkeitsleitungssystem eine Sperre eingebracht, welche ein unkontrolliertes Zurückfließen von Flüssigkeit aus dem oberen Becken in die untere Erdkrustenhöhle verhindert. Das Zurückfließen kann bewußt eingeleitet werden, dazu kann der Siphon eine Pumpe und einen Absperrschieber aufweisen.To one next Development of the device according to the invention is provided that the liquid line system has a siphon in the area of the basin. Through the siphon is in the liquid line system introduced a lock, which is an uncontrolled backflow of liquid from the upper basin into the lower crust of the earth. The backflow can deliberately initiated To do this, the siphon can use a pump and a gate valve exhibit.
Bevorzugt ist zwischen der Erdkrustenhöhle und dem Becken zumindest eine Luftausgleichsleitung verlaufend angeordnet, wenn auch das Becken unterhalb des Erdbodens angeordnet ist. Fließt Flüssigkeit aus dem Becken in die Erdkrustenhöhle oder aus der Erdkrustenhöhle in das Becken, so muß Luft ausweichen, diese ausweichende Luft wird über die Luftausgleichsleitung in das Becken bzw. die Erdkrustenhöhle eingeführt, aus der die Flüssigkeit abfließt. Dabei kann noch vorgesehen sein, daß in die Luftausgleichsleitung zumindest eine Luftturbine eingesetzt ist, um auch der durch die Luftausgleichsleitung fließenden Luft Energie entnehmen zu können.Prefers is between the crustal cavity and the basin arranged at least one air equalization line, although the pool is located below the ground. Flows liquid from the basin into the crustal cavity or from the crustal cavity into the crustal cavity Basin, so must evade air, this evasive air is over the air equalization line in the basin or Erdkrustenhöhle introduced, from the liquid flows. It can still be provided that in the air equalization line at least one air turbine is used to get through the Air equalization line flowing Air to be able to remove energy.
Zwei
Ausführungsbeispiele
der erfindungsgemäßen Vorrichtung
sind in der Zeichnung dargestellt.
In
den Salzstock
Im
Höhenbereich
des Unterbeckens
Das
Flüssigkeitsleitungssystem
In
Das
Flüssigkeitsleitungssystem
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006003982.3A DE102006003982B4 (en) | 2006-01-27 | 2006-01-27 | Method for storing electrical energy, in particular electrical energy generated by wind turbines, and apparatus for storing electrical energy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006003982.3A DE102006003982B4 (en) | 2006-01-27 | 2006-01-27 | Method for storing electrical energy, in particular electrical energy generated by wind turbines, and apparatus for storing electrical energy |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102006003982A1 true DE102006003982A1 (en) | 2007-08-02 |
DE102006003982B4 DE102006003982B4 (en) | 2014-06-12 |
Family
ID=38268167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102006003982.3A Active DE102006003982B4 (en) | 2006-01-27 | 2006-01-27 | Method for storing electrical energy, in particular electrical energy generated by wind turbines, and apparatus for storing electrical energy |
Country Status (1)
Country | Link |
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DE (1) | DE102006003982B4 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007056772A1 (en) * | 2007-11-23 | 2009-06-18 | Vattenfall Europe New Energy Gmbh | Pumped storage-underground hydroelectric power station for use as storage system for compensating daily load in mixed network, has upper reservoir and lower reservoir for receiving liquid, where underground cavern is used as lower reservoir |
DE102007062502A1 (en) * | 2007-12-20 | 2009-06-25 | Becker, Eberhard, Dipl.-Ing. | Wind turbine for producing electric current, has rotor for driving water pump, generator for driving drive unit, and pressurized water container including water inlet connected with pump, where water passes to drive unit through pump |
DE102008020987A1 (en) * | 2008-04-25 | 2009-11-05 | Vattenfall Europe New Energy Gmbh | Pump storage underground hydroelectric power station for balancing daily load in interconnections, has two tanks, where underground cavern is utilized as lower tank in soil of natural water and natural waterbodies function as upper tank |
DE102008058825A1 (en) * | 2008-11-25 | 2010-05-27 | Petros, Ompaintou, Dr. | Green energy source, particularly natural energy drive for use as output source, is assembled with multiple energy sources for generating force, where force is increased to generate more power |
DE102010010701A1 (en) * | 2010-03-08 | 2011-09-08 | Eisenwerk Wittigsthal Gmbh | Energy storage system for use as pump storage power station, has fluid line, which connects upper and lower liquid storage unit, where upper and lower liquid storage units with liquid line and fluid line form closed system |
DE102011052873A1 (en) * | 2011-04-19 | 2012-10-25 | Hydroprojekt Ingenieurgesellschaft mbH | Pumped storage plant in a body of water |
DE102011050032A1 (en) * | 2011-05-02 | 2012-11-08 | Hansjörg Schechner | Wind turbine and device for generating electrical energy with such a wind turbine |
EP2538072A1 (en) * | 2011-06-24 | 2012-12-26 | TECSOL GmbH | Subterranean pump storage power plant |
DE102011115606A1 (en) * | 2011-09-27 | 2013-03-28 | Manfred Bremicker | Underwater pumped storage hydro power station for storing large amount of electricity, has hollow body whose wall is connected with water subsurface along peripheral edge that encloses base surface of hollow body in water-proof manner |
DE102017010933A1 (en) | 2017-11-23 | 2019-05-23 | Bernhard Piekorz | Pumpspeicherwerk |
WO2021096365A1 (en) * | 2019-11-15 | 2021-05-20 | Hans Gude Gudesen | Solution mined cavity system |
EP4019765A1 (en) * | 2020-12-23 | 2022-06-29 | Tree Energy Solutions B.V. | Energy storage system |
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