Individual tower, for stacking single-repeat units of high-temperature solid oxide electrolyzers or solid oxide fuel cells, and enclosure for such individual tower

Abstract

"Individual tower, for stacks of single repeating units of high-temperature solid oxide electrolyzers or solid oxide fuel cells, and casing for such individual tower" Individual tower (1), for stacks (2) of single repeating units (SRU) (11) of high-temperature solid oxide electrolyzers (SOEC) or solid oxide fuel cells (SOFC), comprising a fluid collection element, referred to as the fluid collector, arranged to collect / distribute fluids to / from the individual tower, an electrical collector assembly (4), referred to as the electrical collector (4), arranged to connect, route, and isolate, within the tower, the electrical monitoring / control and / or command cables for the stacks and the individual tower elements requiring monitoring / control and / or command, two power bars (5, 6): arranged to route electricity to / from the SRUs and connected to the stacks via,respectively, an upper end plate (71) and a lower end plate (72), heating blocks (8) arranged to heat the stacks. Figure for the abbreviation: Figure 6,

Description

Title of the invention: Individual tower for stacking single-repeat units of high-temperature solid oxide electrolyzers or solid oxide fuel cells, and enclosure for such individual tower technical field

[0001] The present invention relates to the field of high-temperature solid oxide electrolyzers, denoted SOEC for "solid oxide electrolyzer cell", and solid oxide fuel cells, denoted SOFC for "solid oxide fuel cell".

[0002] The invention relates, in particular, to stacks of planar single repeating units (SRU) of SOEC or SOFC. State of the art

[0003] The stacking of individual high-temperature solid oxide electrolysis cells (SOEC) and the stacking of solid oxide fuel cells (SOFC) constitutes an essential element of current electrolyzers and fuel cells.

[0004] For both applications, the stack constitutes a series assembly of single repeating units (SRU) within each of which the electrochemical reaction takes place.

[0005] The main function of the SRU stacking is to: • distribute and recover the gas, and / or • distribute / collect current through each cell, and / or • Isolate (electrically) each SRU.

[0006] In the case of solid oxide technologies, the packaging of the SRU stack (or the “stack”) must withstand a high temperature environment, for example temperatures of 850°C, and a pressurized gaseous environment (e.g. 500 mbars).

[0007] Several SRU stacking architectures have been developed: tubular, microtubular and planar architectures.

[0008] In the case of planar architectures, the SRU consists of an electrochemical cell, current collectors, and a sealing gasket. An interconnector connects two SRUs in series. The interconnector provides mechanical support for the subassembly and separates the two gas chambers.

[0009] In the prior art, the stacking (or stack) of individual cells (SRU) is known.

[0010] One object of the invention is to provide an individual tower for stacks of single repeating units (SRU) of high-temperature solid oxide electrolyzers or solid oxide fuel cells: • facilitating and simplifying the assembly / disassembly and mounting / dismounting of SRUs within the same stack, and / or • enabling the simple and quick assembly / disassembly and mounting / dismounting of multiple stacks of SRU units within the same element, and / or • modular, and / or • allowing testing, verification and / or proving of SRU stacks before their relocation and on-site installation.

[0011] One object of the invention is to provide a casing for individual tower(s) intended to receive one or more stacks of single repeating units (SRU) of high-temperature solid oxide electrolyzers or solid oxide fuel cells: • intended to be placed on-site, and / or • allowing the simple and quick assembly / disassembly and mounting / dismounting of one or more functional individual tower(s). Description of the invention

[0012] For this purpose, an individual tower is proposed for stacks of single repeating units (SRUs), preferably planar SRUs, high-temperature solid oxide electrolyzers (SOECs) or solid oxide fuel cells (SOFCs).

[0013] The individual tower comprises: • a fluid collection element, called a fluid collector, arranged to collect / distribute fluids, preferably all fluids, coming from / destined for the individual tower, • an electrical collector assembly, called an electrical collector, arranged to connect, route and isolate, within the tower, the electrical cables for monitoring / controlling and / or commanding the stacks, preferably of each SRU, and the elements, preferably of each of the elements, of the individual tower requiring monitoring / controlling and / or commanding, • two power bars: • arranged to carry electricity to / from stacks and / or SRUs, and • connected to the stacks via, respectively, an upper end plate and a lower end plate, • heating blocks arranged to heat the stacks, preferably collectively or simultaneously.

[0014] Preferably, in this description, the term “tower” used alone refers to or corresponds to “individual tower”.

[0015] Preferably, one, preferably each, individual tower is intended and / or arranged to receive or comprise one or more stack(s) of SRU.

[0016] Preferably, one, preferably each, individual tower is intended and / or arranged to receive or include, indifferently, SOECs or SOFCs.

[0017] One, preferably each, individual tower, when functional, is suitable for and / or intended for and / or arranged to produce electricity or dihydrogen and / or dioxygen.

[0018] Preferably, "functional tower" is understood to mean: a tower comprising one or a set of stacks of mounted, assembled and connected SRUs.

[0019] Preferably, "functional individual tower" is understood to mean: a tower capable of or able to produce electricity or, respectively, dihydrogen and / or dioxygen when supplied with fuel, for example dihydrogen and air, or, respectively, water vapor.

[0020] Preferably, the tower comprises a stack of stacks, preferably a single stack or a single stack of stacks, or several stacks, preferably juxtaposed, adjacent or adjoining, of stacks.

[0021] Preferably, the individual tower includes one or more means for heating fluids destined for the stacks.

[0022] Preferably, the individual tower includes a mechanical compression system for the SRUs between them and / or stacks between them.

[0023] Preferably, the individual tower includes side walls and top walls arranged to thermally insulate the individual tower, preferably the interior of the individual tower, from the external environment.

[0024] Preferably, the individual tower includes at least one electrical connection box, preferably mounted on one of the walls of the individual tower, preferably also on an external side of one of the walls of the individual tower, arranged for and / or intended to connect electrically to an external power supply or electrical storage element, or external to the individual tower, and / or, respectively, to a control unit, which may be external or external to the individual tower or which may be included in the individual tower, among other things, the heating blocks, the power bars and / or, respectively, the electrical collector assembly.

[0025] Preferably, the individual tower comprising a chassis intended and / or arranged to receive, preferably on which is intended to be mounted, among other things, Ic / lcs stacks, connecting elements, heating blocks, lower end plate, side walls and / or upper walls.

[0026] Preferably, the individual tower includes a base on which the chassis is mounted.

[0027] Preferably, the individual tower rests on the base.

[0028] Preferably, the fluidic collector is protected, belongs to or is included in the base.

[0029] According to the invention, a casing, box or box for individual tower(s) is also proposed, preferably for individual tower(s) according to the invention, the individual tower(s) being arranged to receive, or includes, a stack or set of stacks of single repeating units (SRU) of high-temperature solid oxide electrolyzers (SOEC) or solid oxide fuel cells (SOFC).

[0030] The enclosure comprises at least one housing unit, preferably individual. The housing unit or units are arranged to receive and cooperate with an individual tower.

[0031] The casing further includes fluidic inlets and outlets arranged, each, to cooperate with the fluidic manifold of an individual tower.

[0032] The enclosure further comprises a set of electrical ports including: • an electrical port arranged to be connected to the electrical collector assembly of an individual tower, • an electrical port arranged to be connected to the two power bars of an individual tower, and / or • an electrical port arranged to be connected to the heating blocks of an individual tower.

[0033] Preferably, the enclosure is designed and / or arranged to receive or include one or more individual towers.

[0034] Preferably, each housing of the box includes an electrically insulating support intended to receive and immobilize the base of an individual tower.

[0035] Preferably, the box includes side walls and top walls arranged to thermally insulate the box, preferably the internal environment of the box, from the external environment.

[0036] According to the invention, an individual box / tower assembly is also proposed.

[0037] Preferably, the box according to the invention is suitable, more preferably is particularly suitable, more preferably is designed and particularly advantageously is specially designed, to receive and / or cooperate with the one or more individual towers according to the invention, and vice versa.

[0038] Also any characteristic of the individual tower and / or the caisson according to the invention is directly transposable to the caisson / individual tower assembly according to the invention, and vice versa. Brief description of the FIGURES

[0039] The invention will be better understood upon reading the following description, given solely by way of non-limiting example and made with reference to the accompanying drawings in which: - Figure [1] is a schematic oblique view representation of an individual tower according to the invention, - Figure 2 is a schematic oblique view representation of an individual tower according to the invention. - Figure 3 is a schematic representation of an electrical collector according to the invention. - Figure 4 is a schematic representation of a top view (in the absence of certain upper side walls and the mechanical compression system) of an individual tower according to the invention, - Figure 5 is a schematic representation, viewed from an angle, of a box according to the invention. - [Fig.6] is a schematic representation seen from the side of a box / individual tower assembly according to the invention.

[0040] It is understood that the embodiments described below are in no way limiting. In particular, variants of the invention may be conceived comprising only a selection of the features described below, isolated from the other features described, if this selection of features is sufficient to confer a technical advantage or to differentiate the invention from the prior art. This selection includes at least one preferably functional feature without structural details, or with only a portion of the structural details if this portion alone is sufficient to confer a technical advantage or to differentiate the invention from the prior art.

[0041] In particular, all the variants and embodiments described are combinable with each other if there are no technical obstacles to such combination. Detailed description of the FIGURES

[0042] With reference to FIGURES 1 to 4, a non-limiting embodiment of an individual tower 1, referred to as tower 1, for stacks 2 of planar single repeating units (SRU) (11) of high-temperature solid oxide electrolyzers (SOEC) or solid oxide fuel cells (SOFC) is illustrated.

[0043] Thus, tower 1 is intended and / or arranged to receive 2 stacks of planar SRU 11 SOEC or 2 stacks of planar SRU 11 SOFC.

[0044] Thus, the functional tower 1 will therefore allow the production of electricity or the production of dihydrogen and dioxygen.

[0045] Tower 1 includes a fluid collection element, called a fluid collector. The fluid collector is arranged to collect / distribute all fluids coming from / to Tower 1.

[0046] The fluidic collector is arranged to collect fluids from stacks 2 and to distribute fluids to stacks 2.

[0047] The tower 1 includes heating blocks 8 or heating blocks 8 arranged to heat at least part of the stacks, advantageously the whole of the stack 2.

[0048] The heating blocks 8 are arranged to heat the stacks 2 to a given temperature.

[0049] Advantageously, the heating temperature of each heating block 8 can be controlled by a control unit.

[0050] The heating blocks 8 are illustrated in [Fig.4]. According to the non-limiting embodiment, the tower 1 comprises a heating block 8 located at the rear of the stacks 2 and a heating block 8 located at the front of the stacks 2.

[0051] Tower 1 also includes an electrical collector assembly 4, referred to as electrical collector 4. The electrical collector 4 is arranged to connect, route and isolate, in tower 1, the electrical monitoring / control and / or command cables of the stacks 2.

[0052] The electrical collector 4 is arranged to connect, route, and insulate, within the tower 1, the electrical monitoring / control and / or control cables for the tower 1 elements requiring monitoring / control and / or control. By way of non-limiting examples, the tower 1 elements requiring monitoring / control and / or control may be: voltage measurement wires at the terminals of the SRUs, wires connected to thermocouples, and / or wires connected to the heating blocks 8.

[0053] The tower 1 includes two power bars or current rods 5, 6 arranged to carry electricity from / to the SRU 11. The current rods 5, 6 are connected to the stacks 2 via, respectively, an upper end plate 71 and a lower end plate 72.

[0054] Such an arrangement of the tower 1 according to the invention makes it possible to pool and integrate all the means and functions necessary for the operation of the SRU 11 of each stack 2 as well as those necessary for the other elements of the tower 1 (by way of non-limiting examples: heating blocks 8, measurement and control of the temperature, of the voltage at the terminals of the SRU 11...).

[0055] According to the non-limiting embodiment illustrated in [Fig.1], the tower 1 comprises a single stack of stacks 2. In other words, all the stacks 2 of the tower 1 are stacked on top of each other.

[0056] However, it is also envisaged that the tower 1 may comprise several stacks, for example two or three stacks of stacks 2. In such a case, the stacks of stacks 2 are juxtaposed.

[0057] When tower 1 comprises several stacks of stacks 2, according to a first implementation, each stack can be driven independently. In this case, the stacks of stacks 2 can be described as being (driven) in “parallel”.

[0058] When tower 1 comprises several stacks of stacks 2, according to a second implementation, all the stacks can be driven jointly or simultaneously. In this case, the stacks of stacks 2 can be described as being (driven) in “serial”.

[0059] According to the first and second implementations, each stack may include its own fluidic collector 4 and / or its own power bars 5, 6 and / or its own heating blocks 8 and / or its own upper end plate 71 and / or its own lower end plate 72.

[0060] In other words, according to the first and second implementations, the tower 1 can include a fluidic collector 4 per or for each stack of stacks 2 and / or two power bars 5, 6 per or for each stack of stacks 2 and / or heating blocks 8 per or for each stack of stacks 2 and / or an upper end plate 71 per or for each stack of stacks 2 and / or a lower end plate 72 per or for each stack of stacks 2.

[0061] The remainder of this description will focus on the first implementation, that is, on a tower 1 comprising a single stack of stacks 2 (as illustrated in [Fig. 1]). However, all the described features can be directly transposed and integrated into the second implementation.

[0062] According to an advantageous embodiment, the tower 1 comprises side walls 91 and upper walls 92 arranged to thermally insulate the tower 1 from the external environment. The walls 91, 92 form an interior environment of the tower 1 which is thermally insulated from the outside of the tower 1.

[0063] Thus, the tower 1 according to the invention comprises a confined internal environment limiting the energy required for the operation of the tower 1, in particular for heating and / or for maintaining the temperature of the fluids and / or the SRU 11.

[0064] According to the non-limiting embodiment, the tower 1 comprises a chassis 15 arranged to receive at least some, preferably all, of the tower elements. In particular, the chassis 15 arranged to receive, among other things, the stack(s) 2, the heating blocks 8, the lower end plate 72 the side walls 91 and / or the upper walls 92.

[0065] Advantageously, the tower 1 comprises a base 16 on which the chassis 15 is mounted. The tower 1 rests entirely on the base 16.

[0066] Thus, the chassis 15 and / or the base 16 and / or the chassis 15 / base 16 combination gives the tower 1 an autonomous and transportable character. The tower 1, when functional, i.e. when the stacks 2 of SRU 11 are mounted in the tower 1, no further assembly / handling is required.

[0067] Thus, the arrangement of the tower 1, particularly its monobloc nature, notably due to the mounting of the chassis 15 on the base 16 and the assembly of all the elements necessary for the operation of the stacks 2, and advantageously also due to the assembly of all the elements of the tower 1 described in this application, makes it possible to assemble, adjust, and verify the proper operation of the tower 1 (whether for the production of dihydrogen and dioxygen (SOEC) or for the production of electricity (SOFC)) at its production site. Therefore, advantageously, the tower 1, once installed on site, is immediately functional and ready for use.

[0068] Advantageously, the fluidic collector is protected and included in the base 16.

[0069] According to the embodiment, the tower 1 includes connection elements 31, 32, 33, 34 or branches 31, 32, 33, 34, for example flanges 31, 32, 33, 34, provided in or on a wall 3 of the base 16. In the FIGURES shown, only the branches 31, 32, 33, 34 on the wall 3 of the base 16 are illustrated.

[0070] The connections 31, 32, 33, 34 are connected to, form part of, or belong to the fluidic manifold. In other words, the fluidic manifold is connected to, or includes, the connections 31, 32, 33, 34.

[0071] Each connecting element 31, 32, 33, 34 is intended to be connected to a different external fluid line (not belonging to tower 1), for example: • a supply line for steam or a steam-based mixture, for example a steam mixture that may include a fraction of dihydrogen, • an air supply line, • a collection line for a dihydrogen-rich mixture, the mixture possibly including a residual fraction of unreacted water vapor, • a collection duct for air enriched or highly enriched in oxygen (for example, air with a concentration of dioxygen) greater than 50%, typically an oxygen concentration greater than 70%).

[0072] This aspect makes it possible to further limit the number of operations and / or connections to be made during the installation and / or placement of tower 1 on site.

[0073] Advantageously, tower 1 includes one or more means 12 for heating fluids destined for stacks 2.

[0074] According to the embodiment, the heating means 12 are located laterally with respect to the stacks 2.

[0075] According to an advantageous embodiment, the tower 1 comprises at least one electrical connection box 14, referred to as box 14, located on the outside of the tower 1. The tower 1 comprises three boxes 14 according to the embodiment. The box 14 is mounted on the outer part of one of the walls 91, 92.

[0076] Each box 14 is arranged and / or intended to electrically connect, to one or more electrical elements of the tower 1, an electrical power supply or storage element external to the tower 1. By way of non-limiting examples: the heating blocks 8, the power bars 5, 6, and / or the heating means 12 are connected, via the box 14, to an external electrical power supply or storage element.

[0077] By way of non-limiting example, the external power supply element may be an electrical network, a battery or any electrical power supply source and the external electrical storage element may be a battery or any energy storage device.

[0078] By way of non-limiting examples: the electrical collector 4 is electrically connected, via the housing 14, to the control unit.

[0079] Thus, the chassis 15 and side walls 91 and top walls 92, base 16, electrical connection box 14, mechanical compression system 13, heating means 12, heating blocks 8, electrical collector 4, lower end plate 72, upper end plate 71, power bars 5, 6, housing(s) 14 and fluidic collector 3 and, where applicable (when the tower 1 is functional) connection elements 17 and stack(s) 2 of SRU 11, form a single-piece device or unit. The single-piece tower 1 is therefore transportable and deployable in a single operation / step.

[0080] As known to those skilled in the art, a single repeating unit SRU 11 for a solid oxide electrolyzer (SOEC) or solid oxide fuel cell (SOFC) comprises: • an interconnector, • a cathode, • an anode, • current collectors, and • a sealing gasket.

[0081] The interconnector distributes and recovers the gas (air, H2O, O2, H2) and distributes / collects the current through each SRU 11 and electrically isolates the SRU 11 from each other.

[0082] A connecting element 17 is arranged between two adjacent stacks 2 of SRU 11. Like the interconnector, each connecting element 17 is arranged to electrically connect two adjacent stacks 2 and ensures fluid circulation between two adjacent stacks 2 (i.e., each connecting element 17 collects fluids from one stack 2 and distributes them to the adjacent stack 2).

[0083] According to the invention, a tower 1 may comprise a single stack 2. However, it is advantageous for the tower 1 to comprise at least two stacks 2. By way of non-limiting example, a tower 1 may comprise between two and several dozen, or even several hundred, stacks 2.

[0084] Tower 1 may include a mechanical compression system 13, SRU 11 of each stack 2 with each other and / or stacks 2 with each other.

[0085] This can improve the electrical connection between the SRU 11 and / or between the stacks 2.

[0086] By way of example, the mechanical compression system 13 may comprise or be a spring or cylinders. The mechanical compression system 13 is a weight according to the embodiment.

[0087] The control unit may be external, or may be included in tower 1 (in other words, tower 1 may include the control unit), and / or may be remote.

[0088] The control unit can be arranged and / or configured and / or programmed to control and / or command and / or operate one, several or all of the elements of tower 1.

[0089] The control unit can be arranged to control one, several or all of the elements of tower 1 according to the first and / or second implementation.

[0090] By way of non-limiting examples, the control unit may be arranged and / or configured and / or programmed to control and / or command: • a flow rate of one or more of the fluids circulating in tower 1, and / or • the heating temperature of the heating blocks 8, and / or • the heating temperature and / or a flow rate of heat transfer fluid in the heating methods 12.

[0091] Advantageously, tower 1 can be already operational when installed on site. The installation of tower 1 is therefore quick. Furthermore, the installation / The installation of the functional tower 1 allows for the immediate commissioning of tower 1.

[0092] In other words, tower 1 includes the stacks 2 of SRU 11 and the connecting elements 17.

[0093] Thus, the installation and / or assembly and / or placement of tower 1 on site requires only a limited and simple number of operations and / or connections, preferably "standardized", to be carried out.

[0094] With reference to [Fig.5], a box 100 for individual tower(s) 1 according to the invention is illustrated.

[0095] The box 100 is designed to collaborate and cooperate specifically with one or more towers 1 according to the invention.

[0096] The housing 100 comprises at least one housing 23. According to the non-limiting embodiment shown in [Fig. 5], the housing 100 comprises four housings 23. The housing 100, according to the embodiment, is arranged to receive four individual towers 1 according to the invention. The housing 100 is arranged to receive one tower 1 per housing 23. The housing 100 therefore comprises as many tower(s) 1 as housing(s) 23.

[0097] However, the invention does not exclude the possibility that the box 100 may comprise a single housing 23. The box may comprise between one and ten housings 23.

[0098] Each housing 23 is arranged to receive and cooperate with a single tower 1.

[0099] The box 100 further includes fluid inlets and outlets 181, 182, 183, 184 arranged, each, to cooperate with the fluid collector of a single tower 1.

[0100] In particular, each supply / drainage 181, 182, 183, 184 is arranged to be connected to one of the branches 31, 32, 33, 34 of tower 1.

[0101] The enclosure further includes a set of electrical ports 19.

[0102] The set of electrical ports 19 comprises, at least: • an electrical port arranged to be connected to the electrical collector 4 of a tower 1, • an electrical port arranged to be connected to and, preferably, to power the two power bars 5, 6 of a tower 1, • an electrical port arranged to be connected to and, preferably, to power the heating blocks 8 of a tower 1.

[0103] Each housing 23 includes an electrical insulating support 20 intended to receive, cooperate with and immobilize the base 16 of a tower 1. By way of non-limiting example, the electrical insulating support 20 may be made of refractory bricks or high-temperature ceramic materials, for example aluminum silicate, typically mullite.

[0104] The box 100 includes side walls 93 and top walls 94. The walls 93, 94 of the box are arranged to thermally insulate the box 100, preferably the internal environment of the box 100 (in particular but not only towers 1, the inlets / outlets 181, 182, 183, 184) from the external environment.

[0105] With reference to [Fig.6], a box assembly 100 / individual tower 1 according to the invention is illustrated.

[0106] Of course, the invention is not limited to the examples just described and many modifications can be made to these examples without departing from the scope of the invention.

[0107] Thus, in combinable variants of the embodiments described above: • the stack(s) 2, the heating blocks 8, the lower end plate 72, the upper end plate 71, the side walls 91 and the upper walls 92, the heating means 12, the mechanical compression system 13, the side walls 91, the upper walls 92, the power bars 5, 6 and / or the electrical connection box 14 are mounted or fixed to the chassis 15, and / or • The walls 91, 92 form an interior environment of tower 1 to thermally insulate at least part of the following tower 1 elements from the external environment: the electrical collector 4, the stacks 2, the power bars 5, 6, the heating blocks 8, the heating means 12, the lower end plate 72, the upper end plate 71, and / or • The set of electrical ports 19 further includes an electrical port arranged to be connected to, and preferably to supply power to, the heating means 12, and / or • The 100 box includes a chassis 21 and / or a base 22.

[0108] Furthermore, the different features, forms, variants and embodiments of the invention can be associated with each other in various combinations insofar as they are not incompatible or mutually exclusive.

Claims

Demands

1. A single tower (1) for stacks (2) of single repeating units (SRUs) (11) of high-temperature solid oxide electrolyzers (SOECs) or solid oxide fuel cells (SOFCs), comprising: • a fluid collection element, referred to as the fluid collector, arranged to collect / distribute fluids to / from the single tower, • an electrical collector assembly (4), referred to as the electrical collector (4), arranged to connect, route, and isolate, within the tower, the electrical monitoring / control and / or command cables for the stacks and the individual tower elements requiring monitoring / control and / or command, • two power bars (5, 6): • arranged to route electricity to / from the SRUs, and • connected to the stacks via, respectively, a top end plate (71) and a plate lower end (72),• heating blocks (8) arranged to heat the stacks.

2. Individual tower (1) according to claim 1, comprising a stack of stacks (2) or several juxtaposed stacks of stacks (2).

3. Individual tower (1) according to claim 1 or 2, comprising one or more means (12) for heating fluids destined for stacks (2).

4. Individual tower (1) according to any one of the preceding claims, comprising a mechanical compression system (13) of the SRUs (11) together and / or stacks (2) together.

5. Individual tower (1) according to any one of the preceding claims, comprising side walls (91) and top walls (92) being arranged to thermally insulate the individual tower from the external environment.

6. Individual tower (1) according to the preceding claim, comprising at least one electrical connection box (14), arranged for and / or intended to connect electrically to a power supply element or external electrical storage and / or, respectively, to a control unit, the heating blocks (8), the power bars (5, 6) and / or, respectively, the electrical collector assembly (4).

7. Individual tower (1) according to any one of the preceding claims, comprising a chassis (15) arranged to receive the stack(s) (2), the heating blocks (8), the lower end plate (72), the side walls (91) and / or the upper walls (92).

8. Individual tower (1) according to the preceding claim, comprising a base (16) on which the chassis (15) is mounted.

9. Individual tower (1) according to the preceding claim, in which the fluidic collector is provided in the base (16).

10. A housing (100) for individual tower(s) (1) according to any one of claims 1 to 9, an individual tower being arranged to receive one or a set of stacks (2) of single repeating units (SRU) (11) of high-temperature solid oxide electrolyzers (SOEC) or solid oxide fuel cells (SOFC), said housing comprising: • at least one housing (23), the housing or each housing being arranged to receive and cooperate with an individual tower, • fluid inlets and outlets (181, 182, 183, 184) each arranged to cooperate with a fluid manifold of an individual tower, • a set of electrical ports (19) comprising: • an electrical port arranged to be connected to an electrical manifold assembly (4) of an individual tower, • an electrical port arranged to be connected to two power bars (5, 6) of an individual tower,• an electrical port arranged to be connected to heating blocks (8) of an individual tower.

11. Casing (100) according to claim 10, in which each housing (23) includes an electrically insulating support (20) intended to receive and immobilize the base (16) of an individual tower.

12. Casing (100) according to claim 10 or 11, comprising side walls (93) and top walls (94) arranged to thermally insulate the casing from the external environment.

13. Assembly (1000) caisson (100), according to any one of claims 10 to 12, / individual tower (1), according to any one of claims 1 to 9.

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