Support system for constructing a ground-mounted photovoltaic system, ground-mounted photovoltaic system, and method for constructing a ground-mounted photovoltaic system

Description

[0001] The present invention relates generally to photovoltaic open-field systems, particularly on agricultural land, which enable an environmentally friendly way of using agricultural land for the dual production of food and energy.

[0002] Specifically, the present invention relates to a novel support system for the construction of such a photovoltaic open-field system.

[0003] Current technology allows for the installation of photovoltaic modules or panels for ground-mounted photovoltaic systems using aluminum frames on aluminum support systems (for example, at a 30° angle). This currently requires considerable installation time due to the numerous aluminum solder joints and screw connections. Therefore, such ground-mounted photovoltaic systems are relatively expensive and time-consuming, particularly regarding their construction. Furthermore, aluminum production is very energy-intensive, negatively impacting the overall energy balance of these conventional ground-mounted photovoltaic systems, in addition to their carbon footprint and profitability.

[0004] Furthermore, to achieve climate protection goals and expand photovoltaics, larger solar parks on agricultural land are needed in addition to rooftop installations. However, this puts energy production in conflict with the use of these areas for food production and with nature and landscape conservation.

[0005] So-called "bifacial" modules can offer a solution to these conflicts. Bifacial photovoltaic modules or panels can also generate electrical energy from light that falls onto the solar cells of the bifacial photovoltaic modules or panels from the back. A bifacial photovoltaic module or panel is therefore able to utilize the light that initially passes unused between the individual solar cells past the front surfaces of the bifacial solar cells when this light is reflected onto the back surfaces of the bifacial solar cells.

[0006] In this context, it is known that ground-mounted photovoltaic systems are erected vertically, and that sufficient space is left between the rows of modules for agricultural cultivation of the land. Such a design, in particular, makes it possible to continue using the area required for the ground-mounted photovoltaic system as agricultural land.

[0007] Document WO 2022 / 029107 A1 discloses a support system for constructing a photovoltaic open-air system according to the preamble of claim 1.

[0008] However, experts recognize a need for a support system that enables the cost-effective and simple construction of such ground-mounted photovoltaic systems, taking into account the aforementioned environmentally friendly and economic aspects. In particular, this should facilitate the more extensive use of open spaces.

[0009] Based on this problem, the present invention aims to provide an optimized support system for the construction of photovoltaic open-field systems that is both cost-effective and easy and quick to install in a variety of locations.

[0010] Furthermore, one of the underlying objectives of the invention is to provide a corresponding photovoltaic open-field system which enables environmentally friendly possibilities for the dual use of agricultural land for food production and energy production.

[0011] Another objective underlying the present invention is to provide a method for constructing such a photovoltaic open-field system.

[0012] With regard to the carrier system, the problem underlying the invention is solved by the subject matter of independent claim 1, with advantageous further developments of the carrier system according to the invention being specified in dependent claims 2 to 10.

[0013] With regard to the photovoltaic open-field system, the problem underlying the invention is solved by the subject matter of dependent claim 11, wherein an advantageous further development of the photovoltaic open-field system according to the invention is specified in dependent claim 12.

[0014] Finally, the problem underlying the invention with regard to the assembly method is solved by the subject matter of dependent claim 13.

[0015] Accordingly, the invention relates in particular to a support system for constructing a photovoltaic open-field system, which comprises at least one vertically or at least substantially vertically oriented photovoltaic module or photovoltaic panel and preferably a plurality of vertically or at least substantially vertically oriented photovoltaic modules or photovoltaic panels.

[0016] The support system according to the invention is characterized in particular by the fact that it comprises at least one first, upper, cable-shaped tensioning element and a second, lower, cable-shaped tensioning element spaced vertically apart from it, as well as a first mounting device and a second mounting device spaced apart from it. It is provided that a first end region of the cable-shaped tensioning element is connected or connectable to the first mounting device, and a second end region of the cable-shaped tensioning element opposite the first end region is connected or connectable to the second mounting device.

[0017] According to the invention, the first and second rope-shaped tensioning element are each designed as a guide system in order to guide at least one guide element associated with the at least one photovoltaic module or photovoltaic panel along the rope-shaped tensioning element.

[0018] In this way, it is possible to position at least one photovoltaic module or photovoltaic panel appropriately along the longitudinal alignment of the cable-shaped tensioning element.

[0019] According to preferred embodiments of the support system according to the invention, the at least one guide element of the photovoltaic module or photovoltaic panel is designed as a sleeve or eyelet, or as a sleeve-shaped or eyelet-shaped body. This guide element is preferably arranged on an upper or lower side edge region of the photovoltaic module or photovoltaic panel. In particular, it is provided that the cable-shaped tensioning element of the support system can be guided by the guide element, which is preferably designed as a sleeve or eyelet.

[0020] Alternatively or additionally, it is conceivable that the at least one guide element of the photovoltaic module or photovoltaic panel is designed as a kind of "guide carriage," which is preferably arranged on an upper or lower side edge region of the photovoltaic module or photovoltaic panel. This guide element, designed as a kind of "guide carriage," is particularly configured to run on or along the cable-shaped tensioning element.

[0021] It is advantageous that the at least one guide element associated with the photovoltaic module or photovoltaic panel can be fixed to the rope-shaped tensioning element as required and, in particular, in a detachable manner, so that a relative movement between the guide element with the associated photovoltaic module or photovoltaic panel and the rope-shaped tensioning element is interrupted.

[0022] To realize this embodiment, one aspect of the invention provides that at least one fixing element, in particular in the form of a screw, especially a clamping screw or locking screw, is provided to fix the guide element to the cable-shaped tensioning element as needed. Of course, other embodiments for the fixing element are also possible.

[0023] To ensure the most optimal vertical alignment of the at least one photovoltaic module or photovoltaic panel, the present invention provides that the support system comprises a first upper cable-shaped tensioning element and a second lower cable-shaped tensioning element vertically spaced apart from it. The first and second cable-shaped tensioning elements should each be designed as a guide system for guiding at least one guide element associated with the at least one photovoltaic module or photovoltaic panel. Naturally, it is also conceivable to provide a further, third cable-shaped tensioning element in addition to the second.

[0024] With regard to the first and second mounting devices of the support system according to the invention, it is provided that the first and second mounting devices each have a support which is inclined at a minimum of 5°, preferably at least 10°, and even more preferably at approximately 15° to 30°, relative to the vertical. In this context, the support of the first mounting device should be inclined away from the second mounting device, and the support of the second mounting device should be inclined away from the first mounting device.

[0025] In this context, at least one first or second rope-shaped tensioning element should run at least partially between the support of the first and second mounting device.

[0026] To secure the first mounting device in the ground (soil), a preferred embodiment of the support system according to the invention provides that the first mounting device has a support, in particular designed as a support plate, to which a lower end region of the support of the first mounting device is connected, in particular via an angle bracket or joint. The angle bracket or joint serves to adjust the inclination angle of the support of the first mounting device.

[0027] Alternatively or additionally, the second mounting device should also have a support, in particular designed as a support plate, to which a lower end area of ​​the support of the second mounting device is connected, in particular via an angle piece or joint.

[0028] According to implementations of the support system according to the invention, it is advantageous for the first mounting device to have at least one ground anchoring body, in particular in the form of a screw body, in order to anchor the first mounting device in the subsoil (soil).

[0029] Alternatively or additionally, the second mounting device should also have a corresponding ground anchoring body, in particular in the form of a screw body, for anchoring the second mounting device in the subsoil.

[0030] The ground anchor body serves, in particular, as an attachment point for the support of the corresponding mounting device, which is designed primarily as a support plate, in the subsoil / ground. In a figurative sense, the support, especially the support plate, then forms the substructure of the corresponding mounting device. The ground anchor body is preferably interchangeable so that it can be adapted to the surrounding conditions. For example, different ground anchor bodies are required if the ground consists of stone and / or sand. In a preferred embodiment, the ground anchor body is made of a metallic material. In this context, it is particularly advantageous for the ground anchor body to be made of the same material as the support of the corresponding mounting device, which is designed primarily as a support plate.This advantageously prevents an electrolytic gradient from occurring between the support and the ground anchoring body, thus avoiding corrosion or rust.

[0031] According to possible implementations of the ground anchoring body, it has extensions with a sawtooth pattern. The extensions are preferably evenly distributed on the ground anchoring body so that it can be inserted and anchored uniformly in the soil.

[0032] The installation and anchoring of the corresponding mounting device with such a ground anchoring body is robust, simple and quick to carry out and avoids faulty constructions.

[0033] The ground anchoring body is preferably manufactured from a single component, preferably metal, with pointed triangles, with or without a sawtooth pattern, cut into its edges and bent at up to 90° against the plane of the mounting plate using forming tools. This results in a ground spike that can be driven into the ground, and whose serrated or unserrated cut edge can engage with the root system of natural vegetation and act as a barb.

[0034] According to particularly preferred implementations of the support system according to the invention, the first mounting device has a deflection associated with the at least one rope-shaped tensioning element, in particular in the form of a deflection pulley, over which the rope-shaped tensioning element is deflected, and in particular is deflected in the direction of the ground.

[0035] Similarly, it is advantageous for the second mounting device to also have a corresponding deflection associated with the at least one rope-shaped tensioning element, in particular in the form of a deflection pulley, via which the rope-shaped tensioning element is deflected towards the ground in the area of ​​the second mounting device.

[0036] Particularly in this context, it is advantageous that the at least one cable-shaped tensioning element has an associated cable anchorage by means of which an end region of the cable-shaped tensioning element can be fixed to the ground. In this context, it is particularly suitable that the cable anchorage preferably has a ground anchoring body, especially in the form of a screw body.

[0037] According to implementations of this design variant, it is provided that a corresponding cable anchorage is provided at the two opposite end areas of the cable-shaped tensioning element.

[0038] Alternatively or additionally, it is advantageous that at least one turnbuckle is assigned to the rope-shaped tensioning element in order to be able to set or readjust a tensile stress acting on the rope-shaped tensioning element.

[0039] A turnbuckle, particularly one consisting of a right-hand and a counter-clockwise thread, is suitable for use as a tensioning device. It holds two tie rods with corresponding external threads together by applying tension. Turning the turnbuckle in either direction tightens or loosens the connection. Of course, other designs for a similar tensioner are also possible for varying / adjusting the tension of at least one cable-shaped tensioning element.

[0040] Particularly in the case of photovoltaic ground-mounted systems where the distance between the first and second support device is more than approximately 400 m, the support system should preferably have at least one support device arranged between the first and second support device, which in particular has a support extending at least substantially vertically, which serves to support the at least one cable-shaped tensioning element, and which is connected to the ground via a ground anchoring body.

[0041] Naturally, if the photovoltaic open-field system is expanded accordingly, it is necessary to provide more than one (additional) support device between the first and second mounting device.

[0042] As already stated at the outset, for the purpose of the most efficient energy generation possible, the at least one photovoltaic module or photovoltaic panel should be designed as a bifacial photovoltaic module or photovoltaic panel. However, the present invention is not limited to such embodiments. Rather, it is also conceivable to use monofacial modules.

[0043] The photovoltaic open-field system according to the invention is characterized in particular by the fact that it has at least one support system of the aforementioned type according to the invention. The support system is mounted in such a way that the at least one photovoltaic module or photovoltaic panel is held in an east-west direction at least substantially perpendicular to the at least one cable-shaped tensioning element.

[0044] In this context, it is particularly advantageous that the photovoltaic open-field system according to the invention has a plurality of support systems of the aforementioned type arranged at least substantially parallel to each other.

[0045] The inventive method for constructing a photovoltaic open-field system, in particular a photovoltaic open-field system of the aforementioned type according to the invention, is characterized in particular by the fact that the method comprises the following process steps: ▪ Anchoring the first and second support devices in the subsoil; ▪ Tensioning the at least one first or second rope-shaped tensioning element between the first and second support devices.

[0046] In particular, it is provided that the first and second mounting devices are anchored relative to each other in such a way that the rope-shaped tensioning element stretched between the mounting devices runs at least essentially in an east-west direction.

[0047] The method according to the invention is characterized in particular by the fact that the method further comprises the following process steps: ▪ Inserting / threading the at least one guide element assigned to the at least one photovoltaic module or photovoltaic panel into the at least one cable-shaped tensioning element serving as a guide system; ▪ Positioning the at least one photovoltaic module or photovoltaic panel along the cable-shaped tensioning element; and ▪ Fixing the guide element of the positioned photovoltaic module or photovoltaic panel to the cable-shaped tensioning element.

[0048] The invention is described in more detail below with reference to the accompanying drawings and an exemplary embodiment.

[0049] They show: FIG. 1 schematically and in an isometric view an exemplary embodiment of the photovoltaic open-field system according to the invention with a plurality of support systems arranged parallel to each other with corresponding photovoltaic modules; FIG. 2 schematically and in a side view a support system of the exemplary embodiment of the photovoltaic open-field system according to the invention. FIG. 1 FIG. 3A to C Schematic and isometric views of various embodiments of the photovoltaic module of the carrier system according to FIG. 2 associated guide elements; FIG. 4 schematically an exemplary embodiment of the substructure of the mounting devices of the support system according to FIG. 2 ; and FIG. 5 schematically shows an exemplary embodiment of the substructure for anchoring the cable-shaped tensioning element of the support system according to FIG. 2 .

[0050] In light of global warming, which is largely caused by humans, decarbonizing the energy sector by phasing out the use of fossil fuels is of paramount importance. The finite nature of fossil fuels such as oil, coal, and natural gas, as well as the risks associated with alternative nuclear energy sources, are equally important reasons for the energy transition. Solving the global energy problem is considered a central challenge of the 21st century.

[0051] Key elements of the energy transition include the expansion of renewable energies. Renewable energies include, for example, bioenergy, geothermal energy, hydropower, marine energy, wind energy, and especially solar energy (solar thermal, photovoltaics).

[0052] Photovoltaics refers to the direct conversion of light energy, usually from sunlight, into electrical energy using solar cells. By far the most important application today is grid-connected electricity generation, primarily on rooftops and as ground-mounted systems, to replace conventional power plants.

[0053] Ground-mounted solar installations are divided into fixed mounting systems and tracking systems. With fixed mounting systems, a steel or aluminum frame is anchored in the ground by driving piles or mounted on concrete blocks, depending on the subsoil. The angle of the modules cannot be changed after installation.

[0054] Tracking systems follow the sun's path to ensure optimal module alignment at all times. However, compared to fixed-mount systems, tracking systems are significantly more expensive. These higher costs are primarily due to high investment costs, high operating costs for maintenance, and the energy required to track each individual photovoltaic module.

[0055] Fixed mounting systems are well known in the prior art. For example, German patent application DE 10 2018 114 621 A1 discloses a support system for arranging a photovoltaic unit comprising at least one, preferably a plurality, of photovoltaic modules. The support system includes four ground supports connected to each other by means of transversely and longitudinally oriented beams. The beams are designed to accommodate the photovoltaic modules. The support system is constructed such that the photovoltaic modules are mounted at a distance from the ground and each has an angle of inclination.

[0056] The use of crossbeams and longitudinal beams, in particular, comes with a number of disadvantages. The total amount of material required for these beams in a photovoltaic unit is a significant drawback, especially for assembly, transport, and manufacturing. Furthermore, the longitudinal and crossbeams can only reach a limited length, as otherwise their own weight would subject them to a large bending moment, leading to the desired material deformation.

[0057] The use of an aluminum support system negatively impacts the overall energy balance of the previously described photovoltaic system, in addition to its climate impact and profitability.

[0058] The photovoltaic open-field system 1 according to the invention, which is described in more detail below with reference to the exemplary embodiment shown in the drawings, is characterized in particular by the fact that the system 1 can be set up in a cost-effective, simple and quick manner as well as in a variety of locations.

[0059] In particular, the photovoltaic open-field system 1 according to the invention is characterized by the fact that the system 1 has a plurality of vertically arranged module rows 2 with a plurality of photovoltaic modules 4 or photovoltaic panels, wherein sufficient space is left between the individual module rows 2 for agricultural cultivation of the land. Such a structure still allows for the continued agricultural use of the agricultural land.

[0060] This is shown, for example, in the isometric and schematic view of an exemplary embodiment of the photovoltaic open-field system 1 according to the invention. FIG. 1 shown. Indicated in FIG. 1 is in particular an agricultural vehicle (tractor) between individual module rows 2 of the photovoltaic open field system 1.

[0061] In detail, the open-field photovoltaic system 1 comprises a large number of parallel rows of modules 2, each of which is formed by a support system 3 with corresponding photovoltaic modules 4 or photovoltaic panels.

[0062] The individual support systems 3 are mounted in such a way that the associated photovoltaic modules 4 or photovoltaic panels are held preferably in an east-west direction at least substantially vertically by at least one cable-shaped tensioning element 5 of the corresponding support system 3.

[0063] In this context, reference should also be made to the presentation in FIG. 2 referred to, which in a side view shows a support system 3 of the open-field photovoltaic system 1 according to FIG. 1 shows, i.e., a module row 2 of the open-field photovoltaic system 1.

[0064] For example, a self-supporting photovoltaic module 4 or photovoltaic panel, which is framed, is suitable as a photovoltaic module 4 or photovoltaic panel.

[0065] Such a photovoltaic module 4 or photovoltaic panel preferably consists of silicon-based solar cells; however, other materials can also be used, which are mounted on a metal frame (preferably an aluminum frame) and preferably covered by a glass plate. The solar cells are mechanically protected by the glass from environmental inclusions, for example, from hail or PCO corrosion. The aluminum frame serves in particular to protect the glass plate during transport, handling, and installation, to secure it, and to stiffen the assembly.

[0066] The preferred photovoltaic modules 4 or photovoltaic panels comply with a type certification according to IEC 61215:2005 and / or IEC 61646:2008. Certification is preferably carried out by independent technical testing organizations (such as TÜV Rheinland).

[0067] However, it is also conceivable that frameless modules or panels could be used as photovoltaic modules or panels. Such frameless modules or panels are usually designed as glass-glass modules / panels and are generally attached to support rails of a substructure using special clamps.

[0068] Frameless glass-glass modules or panels preferably include a slightly modified frame and generate electricity on both sides. Such photovoltaic modules are known in the prior art, for example, from the company "TRINA SOLAR" under the product name "VERTEX". The VERTEX series consists of the bifacial glass-glass module "DUOMAX V" and the glass-foil module "TALLMAX V".

[0069] As can be seen particularly in the side view in FIG. 2 As can be seen, the exemplary embodiment of the support system 3 according to the invention for the construction of a photovoltaic open-field system 1, as shown schematically and in an isometric view in FIG. 1 The photovoltaic open-field system 1 shown, a first mounting device 6 and a second mounting device 6 spaced apart from it.

[0070] Furthermore, at least in some areas between the first and second mounting devices 6, a first (upper) rope-shaped tensioning element 5 and a second (lower) rope-shaped tensioning element 5 are tensioned. A first end region of the two rope-shaped tensioning elements 5 is connected to the first mounting device 6, and a second end region of the two rope-shaped tensioning elements 5, opposite the first end region, is connected to the second mounting device 6.

[0071] The rope-shaped tensioning elements 5 serve to hold the photovoltaic modules 4 or photovoltaic panels in such a way that they are vertically or at least substantially vertically oriented.

[0072] Furthermore, the rope-shaped tensioning elements 5 serve as guide systems for guiding the photovoltaic modules 4 or photovoltaic panels, which have correspondingly assigned guide elements 7 for this purpose.

[0073] Different designs of the suitable guide elements 7 of the photovoltaic modules 4 or photovoltaic panels are in FIG. 3A bis FIG. 3C shown.

[0074] For example, it is conceivable that the at least one guide element 7 of the photovoltaic module 4 or photovoltaic panel is designed as a sleeve or eyelet, which is preferably arranged on an upper or lower side edge area of ​​the photovoltaic module 4 or photovoltaic panel, and through which the rope-shaped tensioning element 5 can be guided (cf. FIG. 3B und FIG. 3C ).

[0075] On the other hand, it is also conceivable that the at least one guide element of the photovoltaic module 4 or photovoltaic panel is designed as a kind of "guide carriage", which is preferably arranged and designed to run on or along the cable-shaped tensioning element 5 on an upper or lower side edge area of ​​the photovoltaic module 4 or photovoltaic panel (cf. FIG. 3A ).

[0076] The guide element 7, which is assigned to the photovoltaic module 4 or the photovoltaic panel, can be fixed to the rope-shaped tensioning element 5 in such a way as required and in particular in a detachable manner, that a relative movement between the guide element 7 with the associated photovoltaic module 4 or photovoltaic panel and the rope-shaped tensioning element 5 is interrupted.

[0077] For this purpose, it is conceivable, for example, that at least one fixing element 8, in particular in the form of a screw, in particular a clamping screw or locking screw, is provided in order to fix the guide element 7 to the rope-shaped tensioning element 5 as required.

[0078] Returning to the presentation in FIG. 2 It should be noted that the first mounting device 6 has a support 9 which is inclined away from the second mounting device 6 by at least 5°, preferably at least 10° and even more preferably by about 15° to 30° relative to the vertical.

[0079] Similarly, the second mounting device 6 has a support 9 which is inclined away from the first mounting device 6 by at least 5°, preferably at least 10° and even more preferably by about 15° to 30° relative to the vertical.

[0080] It is provided that the two rope-shaped tensioning elements 5, i.e. the upper and lower rope-shaped tensioning element 5, run at least partially between the support 9 of the first and second support device 6.

[0081] As can be seen in particular from the presentation in FIG. 4 The first mounting device 6 has a substructure with a support 10, in particular designed as a support plate, with which a lower end region of the corresponding support 9, i.e. the support 9 of the first mounting device 6, is connected, in particular via a (in FIG. 4 (not shown) angled piece or joint connected.

[0082] The substructure of the second mounting device 6 is preferably designed in the same way.

[0083] The representation in FIG. 4 It can also be seen that the substructure of the mounting device 6 has at least one ground anchoring body 11, in particular in the form of a screw body, to anchor the mounting device 6 (removably) in a substrate.

[0084] In FIG. 2 It is indicated that the first and the second mounting device 6 each have a deflection 12 associated with the rope-shaped tensioning elements 5, via which the corresponding rope-shaped tensioning element 5 is deflected towards the ground. The deflection 12 can, for example, be in the form of a pulley.

[0085] As can be seen in particular from the schematic representation in FIG. 5 Each cable-shaped tensioning element 5 is assigned a cable anchor 13, via which an end region of the cable-shaped tensioning element 5 can be fixed to the substrate. For this purpose, the cable anchor 13 preferably has a ground anchoring body 11, in particular in the form of a screw body.

[0086] The representation in FIG. 5 It can be seen that at least one turnbuckle 14 is assigned to each of the rope-shaped tensioning elements 5 in order to be able to set a tensile stress acting on the rope-shaped tensioning element 5.

[0087] The representation in FIG. 2 It can be seen that the support system 3 further comprises at least one support device arranged between the first and second mounting device 6, with a support 15 extending essentially at least vertically and connected to the ground via a ground anchoring body. Bezugszeichenliste

[0088] 1 Photovoltaic ground-mounted system 2 Module array of the photovoltaic ground-mounted system 3 Support system for forming the module array of the photovoltaic ground-mounted system 4 Photovoltaic module / photovoltaic panel 5 Cable-shaped tensioning element 6 First and second mounting device of the support system 7 Guide element of the photovoltaic module / photovoltaic panel 8 Fixing element of the guide element 9 Support of the mounting device 10 Support of the substructure of the mounting device 11 Ground anchoring body of the substructure of the mounting device 12 Deflection of the mounting device 13 Cable anchorage 14 Turnbuckle 15 Vertical support of the support system

Claims

1. Support system (3) for the construction of a photovoltaic open space installation (1), which has at least one photovoltaic module (4) or photovoltaic panel that is aligned vertically or at least substantially vertically, and preferably a plurality of photovoltaic modules (4) or photovoltaic panels that are aligned vertically or at least substantially vertically, wherein the support system (3) has the following: - a first, upper rope-shaped tensioning element (5) and a second, lower rope-shaped tensioning element (5) spaced vertically apart from it; - a first holding device (6) and a second holding device (6) spaced apart from it, wherein a first end region of the two rope-shaped tensioning elements (5) is connected to the first holding device (6), and wherein a second end region of the two rope-shaped tensioning elements (5) opposite the first end region is connected or connectable to the second holding device (6); wherein the first and second rope-shaped tensioning elements (5) are each designed as a guide system for guiding at least one guide element (7) assigned to the at least one photovoltaic module (4) or photovoltaic panel, characterized in, that the first holding device (6) has a support (9) which is inclined away from the second holding device (6) by at least 5°, preferably by at least 10° and even more preferably by approximately 15° to 30° relative to the vertical, wherein the second holding device (6) has a support (9) which is inclined away from the vertical by at least 5°, preferably by at least 10° and even more preferably by about 15° to 30° away from the first holding device (6), wherein the first and second rope-shaped tensioning elements (5) extend at least in some areas between the support (9) of the first and second holding devices (6).

2. Support system (3) according to claim 1, wherein the at least one guide element (7) of the photovoltaic module (4) or photovoltaic panel is designed as a sleeve or eyelet, which is preferably arranged at an upper or lower side edge region of the photovoltaic module (4) or photovoltaic panel and through which one of the rope-shaped tensioning elements (5) can be guided; and / or wherein the at least one guide element (7) of the photovoltaic module (4) or photovoltaic panel is designed as a guide carriage which is preferably arranged at an upper or lower side edge region of the photovoltaic module (4) or photovoltaic panel and is designed to run on or at one of the rope-shaped tensioning elements (5).

3. Support system (3) according to claim 1 or 2, wherein the at least one guide element (7) assigned to the photovoltaic module (4) or the photovoltaic panel is fixable to the rope-shaped tensioning element (5) as required and, in particular, in a detachable manner so that a relative movement between the guide element (7) with the associated photovoltaic module (4) or photovoltaic panel and the rope-shaped tensioning element (5) is interrupted.

4. Support system (3) according to one of claims 1 to 3, wherein at least one fixing element (8), in particular in the form of a screw, in particular a clamping screw or locking screw, is provided for fixing the guide element (7) to the rope-shaped tensioning element (5) as required.

5. Support system (3) according to one of claims 1 to 4, wherein the first holding device (6) has a carrier (10) designed in particular as a support plate, to which a lower end region of the support (9) of the first holding device (6) is connected or connectable, in particular via an angle piece or joint; and / or wherein the second holding device (6) has a carrier (10), in particular in the form of a support plate, to which a lower end region of the support (9) of the second holding device (6) is connected or connectable, in particular via an angle piece or joint; and / or wherein the first holding device (6) has at least one ground anchoring body (11), in particular in the form of a screw body, for anchoring the first holding device (6) in the ground; and / or wherein the second holding device (6) has at least one ground anchoring body (11), in particular in the form of a screw body, for anchoring the second holding device (6) in the ground.

6. Support system (3) according to one of claims 1 to 5, wherein the first holding device (6) has a deflection (12) assigned to the rope-shaped tensioning elements (5), in particular in the form of a deflection roller, over which the corresponding rope-shaped tensioning element (5) is deflected; and / or wherein the second holding device (6) has a deflection (12) assigned to the rope-shaped tensioning elements (5), in particular in the form of a deflection roller, over which the corresponding rope-shaped tensioning element (5) is deflected.

7. Support system (3) according to one of claims 1 to 6, wherein each rope-shaped tensioning element (5) has a rope anchorage (13) via which an end region of the rope-shaped tensioning element (5) can be fixed to or in the ground, wherein the rope anchorage (13) preferably has a ground anchoring body (11), in particular in the form of a screw body.

8. Support system (3) according to one of claims 1 to 7, wherein at least one turnbuckle (14) is assigned to the rope-shaped tensioning element (5) for adjusting a tensile stress acting on the rope-shaped tensioning element (5).

9. Support system (3) according to one of claims 1 to 8, wherein the support system (3) has at least one support device arranged between the first and second holding devices (6) with a support (15) extending at least substantially vertically, which is connected to the ground via a ground anchoring body (11), in particular in the form of a screw body.

10. Support system (3) according to one of claims 1 to 9, wherein the at least one photovoltaic module (4) or photovoltaic panel is designed as a bifacial photovoltaic module (4) or photovoltaic panel.

11. Photovoltaic open space installation (1) with at least one support system (3) according to one of claims 1 to 10, wherein the support system (3) is mounted such that the at least one photovoltaic module (4) or photovoltaic panel is held in an east-west direction at least substantially perpendicular to the at least one rope-shaped tensioning element (5).

12. Photovoltaic open space installation (1) according to claim 11, wherein a plurality of support systems (3) arranged at least substantially parallel to one another are provided.

13. Method for the construction of a photovoltaic open space installation (1) according to claim 11 or 12, wherein the method comprises the following steps: - anchoring the first and second holding devices (6) of the support system (3) in the ground, - tensioning the first and second rope-shaped tensioning elements (5) between the first and second holding devices (6) of the support system (3), - wherein the first and second holding devices (6) are anchored relative to each other in such a way that the rope-shaped tensioning elements (5) then tensioned between the mounting devices run at least substantially in an east-west direction, and wherein the method further comprises the following steps: - inserting the at least one guide element (7) assigned to the at least one photovoltaic module (4) or photovoltaic panel into the first and second rope-shaped tensioning elements (5) serving as the guide system; - positioning the at least one photovoltaic module (4) or photovoltaic panel along the rope-shaped tensioning elements (5); and - fixing the guide element (7) of the positioned photovoltaic module (4) or photovoltaic panel to the rope-shaped tensioning elements (5).