WO2023156677A1 - Anordnung zur stabilisierung von elektrizitätsnetzen mit kaverne zur gasspeicherung - Google Patents
Anordnung zur stabilisierung von elektrizitätsnetzen mit kaverne zur gasspeicherung Download PDFInfo
- Publication number
- WO2023156677A1 WO2023156677A1 PCT/EP2023/054286 EP2023054286W WO2023156677A1 WO 2023156677 A1 WO2023156677 A1 WO 2023156677A1 EP 2023054286 W EP2023054286 W EP 2023054286W WO 2023156677 A1 WO2023156677 A1 WO 2023156677A1
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- WIPO (PCT)
- Prior art keywords
- cavern
- line
- gas
- arrangement according
- power
- Prior art date
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 39
- 230000003019 stabilising effect Effects 0.000 title abstract 2
- 238000003860 storage Methods 0.000 title description 25
- 239000007789 gas Substances 0.000 claims abstract description 92
- 239000000446 fuel Substances 0.000 claims abstract description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 41
- 238000000605 extraction Methods 0.000 claims description 27
- 239000003345 natural gas Substances 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 239000000872 buffer Substances 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 239000013641 positive control Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 241000711969 Chandipura virus Species 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000013642 negative control Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000012464 large buffer Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of 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
- H02J15/008—Systems for storing electric energy using hydrogen as energy vector
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/30—The power source being a fuel cell
Definitions
- the invention relates to an arrangement for stabilizing electricity networks.
- the arrangement has an energy store which is designed as a cavern for gas storage.
- a gas generator fed by the electricity grid generates gas, in particular hydrogen, which can be stored as gas in the cavern to store energy, so that it can be removed again when required to release energy.
- gas can be generated, for example hydrogen gas by electrolysis, and stored in the gas storage tank.
- gas can be generated, for example hydrogen gas by electrolysis, and stored in the gas storage tank.
- a reserve is created that can be called up when needed, in the event of underproduction of electrical power or when there is a high demand for power.
- Such gas storage tanks are not necessarily restricted to one type of gas.
- the already mentioned hydrogen and natural gas (produced by methanation) from excess electrical energy are suitable.
- an electrolyzer is used to generate hydrogen from excess electrical energy, and the hydrogen is stored in a cavern.
- Caverns are large subterranean cavities that are located in suitable geological strata and are gas-tight. They can be of natural origin or artificially created, such as described in EP 2 855 306 A1.
- the gas (especially hydrogen) is stored in such a cavern via a connection pipe under high pressure of typically 40 to 200 bar, stored there for an indefinite period of time and removed again by means of the connection pipe when required.
- the concept enables the storage of large gas volumes and thus correspondingly large amounts of energy.
- the concept has proven itself, especially when operating on gas networks with ratio moderately long storage or Withdrawal Cycles . However, this is not sufficient to support the electricity grid fed with volatile, renewable energies and the associated high dynamic requirements in relation to the rapid provision of balancing energy and balancing power.
- the invention is based on the object of providing an arrangement for stabilizing electricity grids which is improved in terms of dynamics and which in particular avoids or reduces power plants operated with renewable energies, such as wind farms and wind turbines, being shut down or switched off.
- the energy storage device comprising a gas generator fed by the electricity network for a gaseous fuel, in particular hydrogen, and a cavern with a connection pipe reaching into the cavern, with energy being stored via the connection pipe of the gaseous fuel generated by the gas generator is introduced into the cavern and is removed from the cavern to store energy
- the connection pipe is designed as a dual-directional line reaching into the cavern, which j each includes a filling line and a separate extraction line.
- the invention is based on the idea of enabling both continuous and parallel storage and withdrawal through separate lines for filling and removal, without the need for cumbersome switching processes at the Lines are to be made and in particular the direction of flow in the lines is to be reversed.
- Parallel is understood here to mean that the storage overlaps with the withdrawal. This means that it is possible to switch more quickly between storing gas (the gaseous fuel) in the cavern and removing it from the cavern for stabilization also high demands on the dynamics, as is required in particular for electricity grids with a high proportion of volatile generation from renewable energies.
- the arrangement according to the invention enables simultaneous storage and withdrawal processes, which was not possible in the prior art. Thanks to the invention, removal is also possible at any time during filling. In this way, continuous, unbuffered (without intermediate storage) filling can continue to take place even when gas is removed.
- the arrangement according to the invention is not only suitable as a dynamic energy store, but also for providing fast control power, both receiving from the electricity network and delivering it to the electricity network (negative or positive control power).
- the arrangement according to the invention is therefore suitable for providing primary control power and, because of the large storage volume of gas caused by the cavern, also for providing secondary control power or longer-running minute control power over a longer period of time. Since caverns can be produced efficiently in suitable geological formations or are already available in any case due to previous exploitation of natural gas fields, the invention makes all of these advantages possible significantly less effort than with conventional known storage technologies, such as by means of buffer batteries or by pumped storage power plants.
- the dual-directional line with its filling line is expediently designed for continuous feeding in and/or for continuous removal independent of the feeding.
- This independence offers a number of advantages: firstly, electrical power can be drawn continuously from the electricity network in order to avoid the wind turbines being regulated down even if there is excess power in the network. Secondly, the possibility of continuous filling can prevent the storage tank from running empty. Thirdly, gas can always be taken. The cavern is thus available as a large storage facility for reserve energy, from which electrical power can be provided and released at any time if required.
- the electricity grids can in particular be transmission grids and distribution grids, such as are typically operated by one or more grid operators in a country.
- the term does not include networks within buildings.
- the gas generator is a device that uses electricity to generate a gaseous fuel.
- fuel is understood to mean a chemical substance whose stored energy can be converted into usable energy through combustion. This term includes in particular chemical see fuels, such as methane, as well as electrochemical fuels, such as hydrogen, for power generation in fuel cells.
- Caverns are subterranean cavities. They are gas-tight and can be of natural origin or artificially created. Typically, there are certain suitable geological strata in which caverns are located.
- Gas taken from the cavern means gas (gaseous fuel) that has been produced according to the invention by means of the gas generator and stored in the cavern.
- primary control power secondary control power and minute reserve power are technical terms for network operators, in particular for transmission networks. They are defined in a professional manner in the regulations applicable to the respective transmission network. This can vary from country to country or from control area to control area, so that a specific specification of the respective criteria does not make sense, but can be clearly derived from the corresponding relevant regulations for the person skilled in the art.
- the gas extracted from the cavern can optionally also be used in other ways.
- the usage units can in particular be a methanisation plant which is designed for this purpose using the gaseous fuel removed from the cavern (especially hydrogen gas) to synthesize methane, and/or around a delivery point to a gas network where the extracted gas is fed directly into the gas network.
- the gas network can in particular be a natural gas network. However, it should not be ruled out that this is a network for another gas, in particular hydrogen gas.
- At least one switchable gas diverter is expediently connected to the extraction line, with the extracted gas (the gaseous fuel) flowing to one of the different usage units depending on the switching state of the gas diverter. It is advantageous if the gas diverter is also designed to switch partial flows. In this way, part of the extracted gas can be used, for example, for reverse flow, while another part of the gas is routed to another of the usage units 3, e.g. the methanation plant.
- the gas diverter is preferably designed in such a way that it can also be switched over while extraction is ongoing. This means that switching can take place without interrupting extraction from the cavern.
- a controller for control power which has an input for a signal for a target control power, in particular negative target control power, and is designed to control the gas generator in such a way that one of the, in particular negative , Target control power corresponding power is taken from the electricity network for generating gas, which is stored in the cavern.
- the network operator or another higher level on or in the network transmit a signal for a requested control power (target l control power). This is often the requirement of negative balancing power, d . H .
- the network operator issues a control signal for negative target control power. If this is applied to the control of the arrangement according to the invention, then it takes more power from the network according to the required setpoint control power, generates gas from it and stores it in the cavern. In this way, it is possible to react quickly within seconds to excess power in the network, particularly when using an electrolyzer as a gas generator.
- the control power can be provided for a relatively long time, typically over 60 minutes, if necessary. also longer over several hours.
- the controller for control power also acts on a reconversion device in order to feed additional power into the electricity grid as positive control power.
- a reconversion device in order to feed additional power into the electricity grid as positive control power.
- An additional power requirement arises in the grid, and the grid operator issues a target signal for the feeding in of additional power (positive control power).
- the controller has a corresponding effect on the reconversion device for which gas is removed from the cavern (regardless of whether additional gas is being stored at the same time).
- the reconversion device generates additional electrical power from the gas, for example by means of a fuel cell or a combined heat and power plant (CHP plant), and feeds this into the grid (or gives it to a consumer).
- CHP plant combined heat and power plant
- the CHP plant can be, for example be a hydrogen-powered gas turbine driving an electricity generator.
- a switchable bypass line is expediently provided, which is connected to the filling line between the gas generator and the cavern and connects it to the removal line.
- the cavern represents a large buffer for storing electricity. Nevertheless, it can be expedient to provide an additional buffer accumulator as an option.
- This is fed by the electricity network connected to the gas generator and is designed in particular for rapid power delivery and/or power consumption.
- electrical energy can be provided particularly quickly if required, and an increase in the dynamics with regard to the supply of electrical energy can thus be achieved.
- stabilization and smoothing with regard to the electrical supply of the gas generator, in particular the electrolyzer can be achieved with the buffer accumulator.
- the filling line and the removal line are advantageously routed into the cavern at a distance from one another. They are expediently spaced at least 5 meters apart, although this distance can depend on the dimensions (in particular the diameter) of the filling and extraction lines.
- the filling and removal lines are preferably arranged adjacently; this is understood to mean that the distance is based on the diameter between three times and thirty times the diameter, in particular at least that ten times the diameter and more preferably a maximum of twenty times the diameter. It can be advantageous to use an average diameter for this purpose; below the average diameter, the average diameter of the filling line or of the sampling line understood .
- the type of averaging is to be chosen professionally; in particular, it can be an arithmetic mean, a geometric mean or some other type of averaging.
- a measure for the (average) width of the respective line can occur; this is suitable e.g. especially in the case of filling and/or extraction lines with non-circular cross-sections. - Such a distance is intended to ensure that the inflowing gas does not have any harmful flow effects on the gas extraction and vice versa.
- a better decoupling of the filling line from the extraction line is thus achieved and the risk of the filling line and extraction line influencing each other is thus minimized. It is expedient, particularly in the case of an adjacent arrangement, to provide separate drill shafts for the filling line and the removal line.
- the dual-directional line with its filling line and separate extraction line are arranged in a common borehole. Then the two lines for filling and removal are no longer spaced apart, but the functionality of the removal is independent of the storage or storage independent of removal is still guaranteed .
- This space-saving design is particularly suitable for caverns that are relatively narrow at the top.
- combining the dual-directional line in a borehole simplifies production and thus reduces the production costs. It can expediently be provided that the filling line and the removal line reach different depths into the cavern with their respective mouths, with the filling line preferably reaching deeper.
- the third dimension namely the depth of the cavern, can be used to achieve improved decoupling between the filling line and the extraction line. If the extraction line is arranged with its mouth higher in the cavern, this facilitates the extraction of gas when the filling level is low.
- the cavern is expediently formed in a salt dome. Due to their geological properties, these are particularly suitable for gas-tight storage. Here, the cavern is to be professionally distinguished from a so-called pore storage .
- the cavern is pressure-resistant; it is expediently designed for an operating pressure of at least 40 bar, preferably up to 200 bar. It has been shown that a particularly favorable operation of the cavern is made possible in this pressure range, in particular with regard to economical operating technology and geomechanical stability.
- connection pipe is designed as a dual-directional line reaching into the cavern, which in each case comprises a filling line and a separate extraction line, preferably adjacent to one another.
- FIG. 3 shows a schematic view of a second embodiment
- FIG. 4 shows a schematic view of a third embodiment.
- FIG. 1 shows the invention using the example of a first embodiment.
- the arrangement for stabilizing an electricity network designated in its entirety by the reference number 1, comprises as main components a gas generator 2 and usage units 3, which are connected via a pipe connection 4 to an underground cavern 6.
- the cavern 6 is arranged in a subterranean salt dome 90.
- the invention is explained using the example of hydrogen as the gas that is generated by the gas generator 2 as a gaseous fuel and stored in the cavern 6—it goes without saying that other gaseous fuels can also be used (e.g. methane).
- the arrangement for stabilization 1 is connected via a system transformer 10 to an electricity network 91, in the illustrated embodiment it is a transmission network of a network operator.
- the gas generator 2 is connected to the system transformer 10 via a connecting line 12 and is supplied with electrical power via it.
- the gas generator 2 is designed to generate hydrogen gas using electrical power. This can be done in a manner known per se; the gas generator 2 is preferably designed as an electrolyzer. There are but other electrically powered processes for generating hydrogen are also possible.
- a combined heat and power plant (CHP plant) or a fuel cell 31 which is one of the units 3 used.
- CHP plant combined heat and power plant
- a fuel cell 31 which is one of the units 3 used.
- this connecting line 13 can from the cogeneration plant, for example. an electric power generator driven by a hydrogen gas turbine, or fuel cell 31 , electrical power generated by the reconversion of hydrogen gas can be fed into the transmission network 91 .
- the gas generator 2 and the usage units 3 with the fuel cell 31 are connected to the cavern 6 via a pipe connection 4 .
- the pipe connection 4 is designed according to the invention as a dual-directional line 5 that includes a filling line 51 and a removal line 52 .
- the filling line 51 is connected to the gas generator 2 and ends with its mouth 53 in the cavern. It is used to store hydrogen gas generated by the gas generator 2 in the cavern 6 .
- the removal line 52 is separate from the filling line 51 . Its mouth 54 also protrudes into the cavern 6 and leads out of the cavern 6 upwards to the usage units 3 with the fuel cell 31 .
- the two lines of the dual-directional line 5, the filling line 51 and the removal line 52 are guided into the cavern 6 at a distance from one another but adjacent to one another.
- the usage units 3 can also have other units for using the hydrogen gas.
- a methanizing plant 33 can also be provided, which synthesizes methane gas from the supplied hydrogen gas with the addition of carbon dioxide, which can in particular be taken from the air as CO 2 .
- This can be fed into a natural gas network 93 (shown only symbolically) in a manner known per se.
- hydrogen gas extracted from the cavern 6 via the extraction line 52 can be fed via a transfer point 35 into a gas network, which can be a natural gas network or a hydrogen gas network (not shown). In this way, direct use of the stored hydrogen is also possible.
- a gas diverter 30 is provided on the extraction line 52 . It is connected upstream of the usage units 3 and determines which of the usage units 3 is supplied with the hydrogen gas extracted from the cavern 6 by means of the extraction line 52, namely the fuel cell 31, the methanation system 33 or at the transfer point 35 for direct supply.
- the gas switch 30 is optionally capable of partial flow, which means that it distributes it the extraction line 52 coming hydrogen gas flow, so that more than one of the use units 3 is supplied with hydrogen fgas, for example. the fuel cell 31 and the methanation plant 33 receive the extracted hydrogen gas.
- a controller 8 of the arrangement which is designed in particular to provide control power for the electricity grid 91 .
- a setpoint input 80 is provided, to which a signal for a requested control power can be applied by an operator of the electricity network 91 or by another higher-level entity (not shown).
- the controller 8 is also connected to the fuel cell 31 via a first signal line 81 and to the gas generator 2 via a second signal line 82 and thus affects their operation. If the network operator requires e.g. positive control power, the controller 8 controls the fuel cell 31 via the signal line 81 in such a way that it generates more electrical power and accordingly removes more hydrogen gas from the cavern 6 via the extraction line 52 .
- the controller 8 controls the gas generator 2 via the signal line 82, which takes more electrical power from the electricity network 91 and generates more hydrogen gas by means of the electrolyzer, which is fed into the cavern 6 via the filling line 51 and temporarily stored there becomes .
- This can be done regardless of whether or not hydrogen gas is being extracted via the extraction line 52 at this point in time.
- the excess power can be quickly and effectively discharged from the electricity network 91 by means of the arrangement according to the invention and stored in the cavern 6 as hydrogen gas.
- This energy is then available there again at any time, for example by reverse flow using the fuel cell 31 or for use in another way, for example using the methanizing system 33 (or by direct feeding via the transfer point 35 into a gas network).
- control power can be provided on a large scale. Thanks to the high dynamics, this can be done within seconds, so that even the provision of primary control power (one-second reserve) is possible.
- FIG. 2 shows the types of control power resulting from the corresponding network operator guidelines and their chronological relationship.
- the number I represents the primary control reserve, which is known as Second reserve must be fully deployed within a period of 30 seconds. Ty Typically, a period of up to 15 minutes has to be covered.
- the primary control power is followed by the secondary control power, which is shown in FIG. 2 with the number II and can partially overlap with the primary control power I. This must be provided in full within a period of 5 minutes.
- minute control power which is identified by the number III in FIG. 2 and which must be provided in full after 15 minutes at the latest. Only a long time later, practically only after almost an hour, does balancing via the balancing groups take effect, as shown in FIG. 2 by number IV.
- the arrangement 1 according to the invention achieves both thanks to the gas generator 2 and CHP system or the fuel cell 31, both of which can be regulated quickly, and the cavern 6 with its large storage volume.
- the arrangement 1 according to the invention can thus provide all control services I, II and III.
- a buffer accumulator 15 can also be provided to further increase the dynamics in the provision of control power. It is connected to the electrical side both of the gas generator 2 designed as an electrolyzer and of the fuel cell 31 . He can therefore perform quickly or record power peaks or deliver, and thus secures a rapid response behavior of the arrangement according to the invention from further.
- FIG. 3 shows a second embodiment of the arrangement according to the invention. Identical or similar components which have the same or a similar function are denoted by the same reference number, and for a more detailed explanation reference is made to the above description.
- the second embodiment differs from the first embodiment shown in FIG. 1 essentially in that a bypass line 7 is arranged between the filling line 51 and the extraction line 52 .
- the bypass line 7 is provided with a switchable shut-off valve 71 which blocks or releases the bypass line 7 . It is connected to the controller 8 via a signal line (not shown), which controls the shut-off valve 71 depending on the situational requirement of the arrangement 1 according to the invention and thus opens or closes the bypass line 7 .
- FIG. 4 shows a third embodiment of the arrangement according to the invention. Identical or similar components which have the same or a similar function are denoted by the same reference number, and for a more detailed explanation reference is made to the above description.
- the third embodiment differs from the second embodiment essentially in that the dual-directional line 5 with its filling line 51 and the separate extraction line 52 are in a common pipe shaft 40 are arranged (and not in each case in a separate well as in the first and second embodiment form).
- Dual-directional line 5 in a common pipe shaft 40 the production of the pipe connection to the cavern 6 with the dual-directional line 5 is significantly simplified, which enables a more rational production of the arrangement 1 according to the invention.
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DE102022104030.5A DE102022104030A1 (de) | 2022-02-21 | 2022-02-21 | Anordnung zur Stabilisierung von Elektrizitätsnetzen mit Kaverne zur Gasspeicherung |
DE102022104030.5 | 2022-02-21 |
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WO2023156677A1 true WO2023156677A1 (de) | 2023-08-24 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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EP2855306A1 (de) | 2012-05-25 | 2015-04-08 | Praxair Technology Inc. | Verfahren und system zum speichern von wasserstoff in einer salzkaverne mit einer permeationssperre |
DE102014002294A1 (de) * | 2013-12-16 | 2015-06-18 | JENA-GEOS-Ingenieurbüro GmbH | Verfahren zur Zwischenspeicherung und Nutzung von primärer Elektroenergie |
CN106014640B (zh) * | 2016-06-27 | 2018-03-06 | 李雨航 | 一种电力系统负荷调节控制方法 |
WO2020125868A1 (de) * | 2018-12-17 | 2020-06-25 | Peter Volkmer | Verfahren und einrichtung sowie system zur stabilisierung eines stromnetzes |
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US3986362A (en) | 1975-06-13 | 1976-10-19 | Petru Baciu | Geothermal power plant with intermediate superheating and simultaneous generation of thermal and electrical energy |
EP2470822A4 (de) | 2009-08-27 | 2013-07-31 | Mcalister Technologies Llc | Vorrichtungen und verfahren zur lagerung und/oder filterung einer substanz |
DE102013017914A1 (de) | 2012-10-21 | 2014-06-12 | Karsten Lege | Nutzung des "Power to Gas" Prinzips zur Anbindung von Offshore-Windparks |
US9869167B2 (en) | 2012-11-12 | 2018-01-16 | Terracoh Inc. | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
US11670960B2 (en) | 2020-09-01 | 2023-06-06 | Mitsubishi Power Americas, Inc. | Integrated power production and storage systems |
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- 2023-02-21 WO PCT/EP2023/054286 patent/WO2023156677A1/de active Application Filing
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EP2855306A1 (de) | 2012-05-25 | 2015-04-08 | Praxair Technology Inc. | Verfahren und system zum speichern von wasserstoff in einer salzkaverne mit einer permeationssperre |
DE102014002294A1 (de) * | 2013-12-16 | 2015-06-18 | JENA-GEOS-Ingenieurbüro GmbH | Verfahren zur Zwischenspeicherung und Nutzung von primärer Elektroenergie |
CN106014640B (zh) * | 2016-06-27 | 2018-03-06 | 李雨航 | 一种电力系统负荷调节控制方法 |
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US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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