DE102020118208A1 - Arrangement for the cultivation and utilization of biomass - Google Patents

Abstract

The invention relates to an arrangement (1) for cultivating and utilizing biomass. The arrangement (1) comprises a modular greenhouse (100) with an associated control and monitoring unit (101). The arrangement (1) also includes a modular, two-stage biogas plant (200) with an associated control and monitoring unit (201), wherein biogas can be generated from biomass waste in the modular, two-stage biogas plant (200). A commutative connection (150) exists between the control and monitoring unit (101) of the modular greenhouse (100) and the control and monitoring unit (201) of the modular, two-stage biogas plant (200).

Description

The present invention relates to an arrangement for cultivating and utilizing biomass.

The German utility model DE 94 09 728 U1 reveals a greenhouse. The greenhouse is built up modularly from several segments. Each segment consists of at least two side windows and at least two roof windows that form a gable roof. Pin-shaped connecting elements are used to create a stable connection with a second profile rail of the adjacent segment forming the roof ridge.

The German utility model specification DE 20 2007 005 638 U1 discloses a modular greenhouse. The modular greenhouse consists of a truss-like frame. Translucent walls, for example, can be held in the frame. A pavilion section consists of at least three, in particular four, horizontal sub-sections which form approximately a semicircle. The sloping roof elements are isosceles triangles, the vertices of which converge.

The German patent application DE 10 2008 015 609 A1 discloses a biogas plant and a method for producing biogas. A method for producing biogas, in particular methane gas, in a multi-stage process is disclosed here. The multi-stage process includes a hydrolysis process and a methanation process. The hydrolysis process is spatially separated from the methane formation process. The biogas plant itself has at least two hydrolysis tanks and a fermentation tank or fermenter for a methane formation process. The at least two hydrolysis tanks are spatially separated from the downstream fermenter. A disadvantage of this biogas plant is that it is not modular, not mobile and not compact. In addition, this biogas plant does not provide for remote maintenance or remote control. It is not possible to move to another location or set up another site on site.

The German utility model DE 20 2013 101 554 U1 discloses a tank arrangement of a biogas plant. The container has a bottom and a peripheral wall. The wall of the container is outwardly supported against at least one container. The at least one container contains technical equipment that is required to operate the biogas plant.

The German patent application DE 199 58 142 A1 discloses a modular biogas plant. The transportable, modular biogas plant includes a fermenter and an energy part, both of which are separate components. These components are accommodated in standard transport containers or in standard transport container frames. The fermenter has a rigid shell. The biogas plant described here is a single-stage and non-thermophilic process.

None of the documents mentioned above describes or mentions the combination or interconnection of a greenhouse (device for producing or cultivating biomass) and a biogas plant (device for utilizing biomass).

The object of the invention is to create an arrangement for cultivation and utilization that is essentially energy self-sufficient and generates and utilizes biomass.

This object is achieved by an arrangement for cultivating and utilizing biomass, which comprises the features of claim 1.

In one embodiment of the invention, the arrangement for cultivating and utilizing biomass includes a modular greenhouse with an associated control and monitoring unit. Furthermore, the arrangement includes a modular, two-stage biogas plant with an associated control and monitoring unit. Biogas is produced from biomass waste in the modular, two-stage biogas plant. A commutative connection exists between the control and monitoring unit of the modular greenhouse and the control and monitoring unit of the modular, two-stage biogas plant. By means of the commutative connection, energy from the biogas in the form of light and/or heat can be made usable for the cultivation of biomass in the greenhouse at the request of the modular greenhouse.

The advantage of the arrangement according to the invention is that an essentially energy-neutral greenhouse is created which can be used in all climatic zones of the world and thus enables multiple harvests. In addition, with the biogas plant, not only the biomass waste from the greenhouse but also from other, surrounding sources can be processed.

A modular greenhouse is made up of several modules. The greenhouse is preferably constructed from several identical modules. Each of the modules has a roof that supports at least one transparent roof surface. According to the invention, only a transparent roof surface is supported by the roof. The cross-section of the roof can take on a number of suitable cross-sectional shapes. The at least one transparent roof surface of each module carries at least one photovoltaic module, which is designed, for example, to be partially transparent or adjustable in terms of its transparency.

According to a further embodiment of the invention, an energy store can be assigned to the modular greenhouse. The energy store can be connected to the at least one photovoltaic module of each module in order to store energy from the electricity generated by the at least one photovoltaic module.

The advantage of the energy storage in connection with the greenhouse is that energy is available to the greenhouse when it is needed. The greenhouse can also be set up quickly and quickly using the individual modules.

The energy store can be a battery.

The energy store can also be a power-to-gas system, with which hydrogen or methane can be generated and stored from the electricity from the photovoltaic modules of the modules in the greenhouse.

A fuel gas is produced by means of water electrolysis and the use of electricity. This fuel gas (i.e. hydrogen, possibly ammonia, methane) can be stored and later used, for example, for subsequent reconversion or temporarily stored.

The energy storage can also be a power-to-liquid system, with which the electricity from the photovoltaic modules of the greenhouse modules can be used to produce e.g. methanol. The solar power generated by the photovoltaic modules can be stored using a power-to-liquid system. By electrolyzing water using solar power, hydrogen can be produced, which is converted into methanol by reacting with carbon dioxide. The liquid methanol is excellent and easy to store.

In the event that the components of the individual modules are to be transported in a container, it is advantageous if the transport volume available in the container is optimally utilized. The length of a first frame element and a second frame element should be slightly less than the length of the container. The width of a third frame element and a fourth frame element corresponds to half the length of the first frame element and the second frame element. The height of the first frame member and second frame member is equal to the height of the third frame member and fourth frame member, which height is less than the container height. If required for the greenhouse, the floor element can have a length corresponding to the length of the first frame element and the second frame element. The roof structures for each module have a base width equal to the width of the third frame member and the fourth frame member. The transparent cover has a length that corresponds to the length of the first frame element or the second frame element. The width of the transparent cover essentially corresponds to the length of the side of the roof construction.

The biogas plant of the arrangement is a two-stage biogas plant, which has several modules designed as a tank and several modules designed as a housing. Elements for controlling the modular, two-stage biogas plant and for generating energy from the biogas generated by the modular biogas plant can be accommodated in the housings.

All modules of the modular, two-stage biogas plant have the same size and can be stacked.

The advantage that all modules of the biogas plant have the same size and correspond to a standard container is that transport and logistics are made much easier. A further simplification is if the individual components of the modules of the greenhouse are delivered prefabricated in a container that is the same size as the modules or containers of the biogas plant.

In the smallest expansion stage, the two-stage biogas plant comprises at least two hydrolysis tanks and at least one fermenter tank. In the hydrolysis tank, the biomass is exposed to a temperature range of 40 to 65 °C and a pH value of 2 to 9 during hydrolysis. Furthermore, at least one gas reservoir is provided for the biogas generated in the modular biogas plant. First, the hydrolysis tanks are filled with biomass in batches. A temperature is set in the hydrolysis tanks according to a first temperature range. During hydrolysis, the pH value in the hydrolysis tanks is within a predefined pH range. The batchwise filling of the hydrolysis tanks means that a tank is almost completely filled depending on a given time interval is filled and the hydrolysis takes place in the other tank.

In the at least one fermenter tank, biogas is produced from the biomass transferred from the hydrolysis tanks. The production of biogas takes place in a second temperature range, such as from 35 to 60°C and at a second pH range, such as from 6.5 to 8.5. The fermentation in the fermenter tanks is an acetic acid formation (an acidification) and divided into a methanation.

Several arrangements each consisting of a single, modular greenhouse and a two-stage modular biogas plant can be designed in such a way that they can communicate with a central control and monitoring unit. The individual arrangements can communicate with the central control and monitoring unit via the cloud, for example. The data and parameters of the individual arrangements (greenhouse and biogas plant) are evaluated with the central control and monitoring unit. The evaluation results are made available to the assigned local control and data acquisition units. Instructions, commands, messages, etc. thus reach the local control and data acquisition units of the arrangements or the modular greenhouses and biogas plants from the central control and monitoring unit.

The central control and monitoring unit can also be used, for example, to implement condition-based maintenance (CBM). The CBM remote maintenance functions and the trend analyzes allow the user of the arrangement to be informed of possible errors or failures at an early stage. For example, the user interface can be a cell phone, a tablet, or a laptop.

• 1 eine schematische Ansicht einer möglichen Ausführungsform der Anordnung zur Kultivierung und Verwertung von Biomasse;
• 2 eine schematische Ansicht einer weiteren Ausführungsform der Anordnung zur Kultivierung und Verwertung von Biomasse;
• 3 eine schematische, perspektivische Ansicht eines Moduls, das für den Aufbau eines modularen Gewächshauses verwendet werden kann;
• 4 eine schematische Draufsicht auf ein energieeffizientes Gewächshaus, das mit einem Energiespeicher verbunden ist;
• 5 eine Draufsicht auf eine mögliche Ausführungsform der transparenten Abdeckung, die mit einer Dünnschicht-Solarzellen versehen sind, die teiltransparent ausgestaltet sind;
• 6 eine Schnittansicht der transparenten Abdeckung entlang der in 5 gezeigten Schnittlinie A-A;
• 7 eine Draufsicht auf eine weitere mögliche Ausführungsform der transparenten Abdeckung mit teiltransparenten Dünnschicht-Solarzellen;
• 8 eine Draufsicht auf eine noch weitere mögliche Ausführungsform der transparenten Abdeckung, die mit beweglichen Lamellen versehen ist;
• 9 eine Draufsicht auf eine mögliche Gestaltung einer modularen Biogasanlage;
• 10 eine Seitenansicht einer Ausführungsform eines Moduls, das als Tank ausgebildet ist und bei der erfindungsgemäßen modularen Biogasanlage Verwendung findet;
• 11 eine Stirnansicht auf das Modul nach 10;
• 12 eine schematische Ansicht der Anordnung der verschiedenen Module einer Ausführungsform der erfindungsgemäßen modularen Biogasanlage;
• 13 eine schematische Ansicht des modularen und energieeffizienten Gewächshauses; und
• 14 eine schematische Darstellung einer Ausführungsform des erfindungsgemäßen Systems, wie die einzelnen modularen Biogasanlagen und die modularen Gewächshäuser mit einer zentralen Steuerung und Überwachung kommunizieren.

In the following, the invention and its advantages will be described in more detail with reference to the accompanying drawings. Show it:

• 1 a schematic view of a possible embodiment of the arrangement for the cultivation and utilization of biomass;
• 2 a schematic view of a further embodiment of the arrangement for the cultivation and utilization of biomass;
• 3 a schematic, perspective view of a module that can be used for the construction of a modular greenhouse;
• 4 a schematic plan view of an energy-efficient greenhouse, which is connected to an energy storage device;
• 5 a top view of a possible embodiment of the transparent cover, which is provided with a thin-film solar cell, which is designed to be partially transparent;
• 6 a sectional view of the transparent cover along the in 5 section line AA shown;
• 7 a plan view of another possible embodiment of the transparent cover with partially transparent thin-film solar cells;
• 8th a plan view of yet another possible embodiment of the transparent cover, which is provided with movable slats;
• 9 a plan view of a possible design of a modular biogas plant;
• 10 a side view of an embodiment of a module, which is designed as a tank and is used in the modular biogas plant according to the invention;
• 11 an end view of the module 10 ;
• 12 a schematic view of the arrangement of the various modules of an embodiment of the modular biogas plant according to the invention;
• 13 a schematic view of the modular and energy efficient greenhouse; and
• 14 a schematic representation of an embodiment of the system according to the invention, as the individual modular biogas plants and the modular greenhouses communicate with a central control and monitoring.

In the figures, identical reference symbols are used for elements of the invention that are the same or have the same effect. Furthermore, for the sake of clarity, only reference symbols are shown in the individual figures that are necessary for the description of the respective figure. The illustrated embodiments only represent examples of how the modular greenhouse and the modular biogas plant can be designed. The embodiments shown and are not to be construed as limiting the invention. The proportions of the individual elements to one another in the figures do not always correspond to the real proportions, since some shapes are simplified and other shapes are for better illustration are shown enlarged in relation to other elements.

1 shows a schematic view of a possible embodiment of the arrangement 1 for the production and utilization of biomass. The arrangement 1 comprises a modular greenhouse 100 and a modular, two-stage biogas plant 200. The modular greenhouse 100 is used to generate the biomass and has a control and monitoring unit 101. The control and monitoring unit 101 is used to determine measured variables in or on the greenhouse 100 and for setting and adjusting elements of the greenhouse to set a predefined value.

The modular, two-stage biogas plant 200 also has a control and monitoring unit 201. The control and monitoring unit 101 of the greenhouse 100 is connected to the control and monitoring unit 201 of the modular, two-stage biogas plant 200 via a communication link 150. The communication link 150 can be wired or wireless. The modular, two-stage biogas plant 200 has a gas reservoir 202 for the biogas generated with the modular, two-stage biogas plant 200 . In the event that the greenhouse 100 needs energy 300 in the form of light or heat, it can be generated with the biogas. The energy is requested based on the measurements of the control and monitoring unit 101 of the greenhouse 100.

2 shows a schematic view of a further embodiment of the arrangement 1 for the cultivation and utilization of biomass. The only difference to the embodiment after 1 is that the greenhouse 100 is assigned an energy store 7 .

3 10 shows a schematic, perspective view of a module 10 ₁ , 10 ₂ , ..., 10 _N that can be used for constructing an energy-efficient, modular greenhouse 100 . For the formation of a roof 4 of each module 10 _1, 10 _2, ..., 10 _N, at least two roof structures 20 are provided. The at least two roof constructions 20 of each module 10 ₁ , 10 ₂ , ..., 10 _N carry transparent covers 25 (see e.g 5 ), which form the transparent roof surface 5. The several photovoltaic modules 29 (see, for example, FIGS. 5-8) are assigned to the transparent roof surfaces 5 .

4 shows a schematic top view of an energy-efficient greenhouse 100, which is equipped with an energy store 7 (see also 2 ) connected is. It can be clearly seen here that the energy-efficient greenhouse 100 is constructed from a large number of individual modules 10 ₁ , 10 ₂ , . . . 10 _N , which are arranged in the form of a matrix. The transparent roof surfaces 5 of the individual modules 10 _1, 10 _2, ..., 10 _N bear the photovoltaic modules 29. Those modules which are arranged on the outer sides 11 of the energy-efficient greenhouse 100, have transparent side surfaces 6 (See 3 ) on. The transparent side faces 6 can also be provided with photovoltaic modules 29 . Depending on the climatic region in which the greenhouse 100 is set up, the transparent side surfaces 6 can also be omitted. The photovoltaic modules 29 of the energy-efficient greenhouse 100 are electrically connected to the energy store 7 . The energy-efficient greenhouse 100 can be supplied with energy, such as light energy and/or heating energy, via the energy store 7 .

5 shows a plan view of a possible embodiment of the transparent cover 25, which is held or carried by the roof structure 20. A frame 29 defines a photovoltaic module. As from the representation of 6 As can be seen, at least one thin-film solar cell 32 is applied to a transparent cover 30, such as a glass pane or a plastic pane. The at least one thin-film solar cell 32 is provided with a multiplicity of recesses 34 (see 5 ) Mistake. The partially transparent property of the cover 25 can be achieved by means of the recesses 34 . 7 12 shows another embodiment of the arrangement of the cutouts 34 in the thin-film solar cell 32. As desired, the number of cutouts 34 can be designed such that a transparency of 20%, 30% or 40% is set for a cover 25. The above numbers regarding transparency should not be construed as limiting the invention.

8th 12 shows a top view of yet another possible embodiment of the cover 25, which is provided with movable slats 40. FIG. The slats 40 are movably arranged in the frame 29 of the cover 25 . The slats 40 can be pivoted about axes 42 . The pivoting of the slats 40 about the axes 42 can take place by means of a controller (not shown) in such a way that the slats always assume the optimum position relative to the sun, so that the energy yield is optimized. Likewise, the slats 40 can be controlled in such a way that a defined shading for the interior of the greenhouse 100 can be set.

9 shows a possible embodiment of the structure of the modular biogas plant 200. The modular biogas plant 200 consists of a large number of modules 21. The modules 21 all have the same size. The same size is of particular advantage, since this considerably simplifies the transport and the production of the individual modules 21 and thus reduces costs. In addition, the fact that the modules 21 are of the same size means that they can be stacked or combined. Some of the modules 21 of the modular bio-plant 200 are designed as tanks 22 . Another module 21 of the modular biogas plant 200 can be designed as a first housing 35 . Likewise, a further module 21 can be designed as a second housing 36 and yet another module 21 can be designed as a third housing 37 . In the housings 35, 36, 37, elements for controlling the modular biogas plant 200 and for obtaining energy from the biogas generated by the modular biogas plant 200 can be accommodated. A further module 21 of the modular biogas plant 200 is a transport housing 38. A gas reservoir 39 can be accommodated in the transport housing 38 for transport. For the operation of the modular biogas system 200, the flexible gas reservoir 39 can be rolled out of the transport housing 34 and thus comes to lie on a set-up area for the modular biogas system 200, as shown in 9 is shown.

It is self-evident for a person skilled in the art that the 9 illustrated embodiment of the modular biogas plant 200 is only to be regarded as an example and thus does not limit the invention. It goes without saying for a person skilled in the art that the number and the arrangement of the individual modules 21 can be changed depending on the scope of the modular biogas plant 200 .

10 shows a side view of an embodiment of a module 21 of the biogas plant 200, which is a tank 22 for the modular biogas plant 200. In the embodiment shown here, adjusting elements 12 for the tank 22 are attached to a rigid frame 13 . The tank 22 is surrounded by the rigid frame 13 for easy, safe and stable transportation. The frame 13 defines six side faces 24 which form an envelope for the tank 22 . The tank 22 is arranged in the rigid frame 13 in such a way that no connections or add-on parts of the tank 22 extend beyond the side surfaces 24 . This has the advantage that no prefabricated connections or add-on parts of the tank 22 can be damaged during transport. The rigid frame 13 for the tanks 22 is cuboid and has the same size as all other modules 21 of the modular biogas plant 200.

The tank 22 has a manhole 17 attached to the top of the tank 10 on its side. The position of the manhole 17 shown here is not mandatory. Depending on requirements, the manhole 17 can be positioned anywhere. It goes without saying that the manhole 17 is closed with a cover (not shown) during operation of the modular biogas plant 200 . At a front end 22</b>V of the tank 22 , a flanged joint 18 for gas pipe, a flanged joint 19 for pressure pipe, a flanged joint 8 for suction pipe, and a flanged joint 9 for gas injection are provided. The flange connections 8, 9, 18 and 19 described here can be provided with the appropriate lines (not shown) as required and depending on the function of the tank 10. The flange connections 8, 9, 18, 19 are prepared so that the installation of the modular biogas plant 200 can be carried out quickly and easily. The embodiment shown here shows a possible arrangement of the connections. However, the invention is not limited to the number and arrangement of the connections shown here. Furthermore, a piece of pipe 15 for an agitator can be provided at the front end 22V of the tank 10 . If necessary, an agitator (not shown) can thus be inserted into the tank 22 at this point.

At the rear end 22H of the tank 22, a display window 16 and a level probe 15 are provided. The maximum filling level of the tank 10 can be censored via the fill level probe 15 . A pressure sensor 26 is also provided. The position and number of the invention of the sensors is just one example from many possibilities and is not to be construed as a limitation of the invention.

11 shows a plan view of the front end 22V of the tank 22. Here, too, it can be clearly seen that the side surfaces 24 of the rigid frame 13 represent an envelope for the tank 22. In addition to the flange connection 18 for the gas line, the flange connection 19 for the pressure line, the pipe section 15 for the agitator and the flange connection 27 for the gas injection, a heating line 28 (with flow and return) is also provided. As already mentioned in the description of the other drawings, the arrangement of the connections described here is only to be regarded as an example and not as a limitation of the invention. The interior of the tank 22 or the biomass located therein can thus be brought to the temperature interval required for the respective process via the heating line 28 .

12 shows another possible embodiment of the structure of a modular biogas plant 200. In the embodiment shown here, the modular biogas plant 200 is made up of seven modules 21. Four of the modules 21 are designed as tanks 22 . Three of the modules 21 are closed housings 35, 36, 37, which are designed in the form of standard containers (ISO sea containers with standard dimensions). It goes without saying that the invention should not be limited to standard containers. As also from the representation of 12 As can be seen, the modules 21 are all the same size. As already mentioned in the above description, each of the tanks 22 is housed in a cuboid frame 13, the frame 13 having the same size as that of the housings 35, 36 or 37. The embodiment of the modular biogas plant 200 shown here is for a performance designed below 100 kWh, which should not be construed as a limitation of the invention.

13 shows a schematic view of a single modular greenhouse 100. The modular greenhouse 100 provides data and parameters that are detected by internal sensors 52 and / or external sensors 53 of the greenhouse 100 to a greenhouse 100 associated local control and data acquisition unit 101. The local In this embodiment, the control and data acquisition unit 101 communicates with the greenhouse 100 and the energy store 7.

14 shows a schematic representation of the communication of several individual modular arrangements 1 via the cloud 54 with the central control and monitoring unit 55. Each of the arrangements 1, consisting of a modular greenhouse 100 and a modular, two-stage biogas plant 200, provides data and parameters of the arrangement 1. Over a Firewall 51 and the Internet communicates the respective arrangement 1 with the cloud 54. The cloud 54 itself then communicates with the central control and monitoring unit 55. From the central control and monitoring unit 55 get instructions, commands, messages, etc. via the cloud 54, the Internet and the firewall 51 to the respective arrangements 1. Likewise, each of the arrangements 1 can have at least one user interface 58 assigned to it. The user interfaces 58 can receive the messages and/or warnings generated by the central control and monitoring unit 55 via a WLAN, for example. These can be displayed to the operator of the local arrangement 1 via the user interfaces 58 . The operator is thus informed centrally whether an error occurs in the respective modular greenhouse 100 and/or the modular, two-stage biogas plant 200 of the arrangement 1, which error requires current intervention by the operator himself, for example. It is also possible for the operator to be informed in advance of any upcoming repairs or the replacement of components of the modular greenhouse 100 and/or the modular, two-stage biogas plant 200 of the arrangement 1. Although in the representation of 14 Although only identical arrangements 1 are shown, this should not be construed as a limitation of the invention. It goes without saying for a person skilled in the art that different configurations of the arrangement 1 can also be centrally monitored and controlled.

The application has been described with reference to preferred embodiments. However, it will be apparent to a person skilled in the art that modifications or variations can be made to the invention without departing from the scope of the following claims.

Reference List

1

arrangement

4

roof

5

transparent roof surface

6

transparent side surface

7

energy storage

8th

flange connection

9

flange connection

101, 102, ..., 10N

module

11

outside

12

actuator

13

framework

14

side face

15

piece of pipe

16

Store window

17

manhole

18

flange connection

19

flange connection

20

roof construction

21

module

22

tank

22H

rear end

22V

front end

23

level probe

24

side face

25

cover

26

pressure sensor

27

flange connection

28

heating line

29

framework

30

transparent cover

32

Thin film solar cell, photovoltaic element

34

recess

35

first enclosure

36

second enclosure

37

third enclosure

38

transport enclosure

39

gas storage

40

lamella

42

axis

44

surface

45

rectangular base

46

optical element

50

local control and data acquisition unit

51

firewall

52

internal sensor

53

external sensor

54

cloud

55

central control and monitoring unit

58

user interface

100

modular greenhouse

101

control and monitoring unit

150

communication link

200

modular, two-stage biogas plant

201

control and monitoring unit

202

gas storage

300

energy

A-A

cutting line

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 9409728 U1 [0002]
• DE 202007005638 U1 [0003]
• DE 102008015609 A1 [0004]
• DE 202013101554 U1 [0005]
• DE 19958142 A1 [0006]

Claims (9)

Arrangement (1) for the cultivation and utilization of biomass comprising: • a modular greenhouse (100) with an associated control and monitoring unit (101); • a modular, two-stage biogas plant (200) with an associated control and monitoring unit (201), wherein biogas can be generated from biomass waste in the modular, two-stage biogas plant (200); and • a commutative connection (150) between the control and monitoring unit (101) of the modular greenhouse (100) and the control and monitoring unit (201) of the modular, two-stage biogas plant (200), thus on demand of the modular greenhouse (100) energy from which biogas can be used in the form of light and/or heat for the cultivation of biomass. Arrangement (1) according to claim 1 , wherein the modular greenhouse (100) is constructed from several modules (10 ₁ , 10 ₂ , ..., 10 _N ) and each of the modules (10 ₁ , 10 ₂ , ..., 10 _N ) has a roof ( 4) has at least one transparent roof surface (5) and the modular greenhouse (100) is provided with an energy store (7). Arrangement (1) according to claim 2 , wherein the transparent roof surface (5) carries a photovoltaic module (29) and the photovoltaic module (29) is designed to be partially transparent or adjustable in terms of transparency. Arrangement (1) according to claim 2 , wherein the energy store (7) is a battery. Arrangement (1) according to claim 2 , wherein the energy store (7) is a power-to-gas system with which hydrogen or methane can be generated and stored from the electricity from the photovoltaic modules (32) or is a power-to-liquid system with which the Photovoltaic modules (32) methanol can be generated and stored. Arrangement (1) according to claim 1 , the modular, two-stage biogas plant (200) having a plurality of modules (21) designed as a tank (22) and a plurality of modules (21) designed as a housing (35, 36, 37), with the housings (35, 36, 37) Elements for controlling the modular, two-stage biogas plant (100) and for generating energy from the biogas generated by the modular biogas plant (100) are accommodated. Arrangement (1) according to claim 6 , wherein all modules (21) of the modular, two-stage biogas plant (200) have the same size and are stackable. Arrangement (1) according to claim 6 , wherein at least two of the tanks (22) are hydrolysis tanks, and wherein the biomass in the hydrolysis tanks is exposed to a temperature range of 40 to 65 °C and a pH value during hydrolysis of 2 to 9. Arrangement (1) according to claim 6 wherein at least one tank (22) is a fermenter tank.

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