Roofing device

Abstract

The invention relates to a device (1) for forming a canopy over an outdoor region (2), comprising a flat element (3) and a support assembly (4) with supports (5), wherein the support assembly (4) can be anchored to a ground surface (6) of the region (2), and wherein the flat element (3) supported by the support assembly (4) functions to form an area protective canopy (7) over the region (2), wherein a section of the flat element (3) extends along a ridge region (8) of the protective canopy (7).According to the invention, a solar cell module (9) is provided, which is connected to the flat element (3), such that, with the irradiation of light on the solar cell module (9), the light energy can be converted into electrical energy, wherein quick-closing means (10) are provided comprising zipper-closing means (11) with a zipper-closing unit (12), for dismountably disposing of a solar cell module (9) on the flat element (3) using the zipper-closing means (11).

Description

Roofing device State of the art In areas of economic use, such as growing areas for useful or cultivated plants, or in other outdoor areas, roofing systems, for example, of lightweight construction, are commonly used to provide a protective roof over the area to be protected. The removable and relocatable roofing that can be provided serves, for example, to protect agricultural areas from weather conditions, birds or insects, or to protect crops from weather damage such as frost, hail or rain, and / or to protect them from plant diseases of bacterial or fungal origin. Furthermore, in this context, climate change poses increasing problems for numerous companies in the agricultural sector. In this respect, global trends regarding efficient and environmentally friendly energy supply are also becoming increasingly important. The state of the art consists of publications JP 2004036098 A, CN 203129693 U, US 2013 / 032186 A1, CN 105552151 A, WO 2013 / 162376 A1, WO 2021 / 146787 A1 and WO 2013 / 056285 A2. Objective and advantages of the invention The objective of the present invention is to provide a technically efficient and economically advantageous device for roofing areas of the type described at the beginning, such as agricultural roofing systems. In particular, it aims to provide a practical solution to local and global challenges related to climate change and strategies for generating green energy that are independent of fossil fuels. The present invention is based on a device for roofing an outdoor area, such as growing areas for cultivated plants or other areas of economic use, comprising an area element and a pillar assembly. This pillar assembly can be anchored to the ground within the area, and the area element, supported by the pillar assembly, forms a flat, protective roof over the area. A section of the area element extends along a ridge area of ​​the protective roof. For example, a marginal section of the area element extends along the ridge area. The pillars, spaced apart, extend vertically from below, for example, from the ground area, to the ridge area of ​​the device. At the ridge area, there is a ridge element of the pillar assembly, elongated transversely towards the vertical and offset vertically from the ground area.For example, the ridge element is housed at the upper ends of the pillars, running between the upper ends separated from each other. For example, a protective roof is used to cover crops such as useful plants, fruit trees, vegetables, forage crops, or plants used as energy sources. For example, the protective roof is made of sheet metal. For example, the protective roof does not have any rigid supports or profiles within its area. For example, the protective roof is tensioned and / or spatially supported by tensile forces acting at its edges. The vertical direction refers specifically to the height of the device. The ridge element, such as a wire, wire cable, plastic cable, and / or an elongated bar-shaped profile, runs at least approximately in the horizontal direction and can absorb forces in the longitudinal and / or transverse directions of the ridge element. For example, the ridge element is tightly tensioned. For example, the protective roof extends and is tensioned outdoors above or over the area, or over the area of ​​protection or use. For example, one side of the area element, with, for example, a straight longitudinal or transverse edge of the area element, extends along the ridge element. For example, the side in question forms an upper edge of the ridge side of a zone of the area element or protective roof that extends along the ridge element. As a rule, on the ridge element, laterally on both sides along the ridge element, there are respective partial zones of the area element or protective roof, for example, inclined downwards with respect to the horizontal. For example, the protective roof, in relation to a ridge element, has the shape of an equilateral gable roof. For example, the plan of the area element or protective roof is quadrangular, such as rectangular. For example, the area element can be single-layered or multi-layered. For example, the area element can consist of exactly two layers, an upper and a lower layer. For example, the area element can consist of exactly three layers. The layers are arranged, for example, one on top of the other. For example, the area element comprises a sheet, such as a plastic sheet. For example, the area element comprises exactly one continuous sheet. For example, the area element comprises a mesh element, such as, for example, a mesh fabric. For example, the area element comprises exactly one continuous mesh element, such as a mesh fabric. For example, on exactly one lower mesh element, there is exactly one sheet layer present above the mesh element. For example, the sheet has several parallel sheet strips. For example, the mesh element is formed continuously or in one piece. For example, the multiple layers or strata of the area element are each configured as a thin, flat, closed, or perforated material. For example, the area element comprises a sheet, a mesh element, a textile material, or felt. The area element is flexible or deformable; for example, it can be rolled up and unrolled. For example, the sheet is transparent or partially transparent. For example, the sheet has a thickness between 0.1 millimeters and 3 millimeters. For example, the area element comprises exactly an underlying mesh element or exactly a mesh, such as hail or insect netting. For example, the area element comprises a layer above the mesh element. For example, the area element comprises exactly an underlying mesh element, for example, a continuous, one-piece, or one-part mesh, and a sheet above it. For example, the sheet forms exactly a layer above the mesh element, overlapping only slightly at the edges with an adjacent sheet strip. For example, the sheet is composed of several parts, formed, for example, by several parallel sheet strips. For example, the several sheet strips are rectangular in plan view and are arranged side by side, without overlapping or overlapping only at the edges.For example, the sheet is formed, alternatively, as a single, continuous piece, for example, over the entire protective roof. For example, the sheet is formed as a single piece, for example, over half the total area of ​​a gable roof or over one half or one side of the slope of said gable roof. For example, the area element comprises exactly one layer of a material or two or more layers of materials and comprises, for example, several parallel rectangular sheet strips at the top, overlapping, for example, slightly at the edges, and underneath a support such as, for example, a mesh; for example, a hail or insect net. For example, along one longitudinal edge of a sheet strip, it is fixed to the lower support, such as a mesh support. For example, a longitudinal edge of the sheet strip opposite the fixed longitudinal edge can move freely and be reversibly deflected upwards, for example, due to wind or thermal currents. According to the invention, the device is an agricultural roofing system such as, for example, a roofing system for crop plants, fruit trees and / or vegetables. One aspect of the invention consists of providing a solar cell module that is connected to the area element, such that when light strikes the solar cell module, the light energy can be converted into electrical energy, and providing quick-release fastening means comprising a zipper unit for detachably attaching the solar cell module to the area element by means of said zipper. This provides several advantages for daily practice. Zippers can be handled intuitively and manually by anyone without difficulty, as they are part of everyday objects. The possibility of generating clean energy offered by the mounted solar cell module is fully integrated into the roofing system, for example, a conventionally designed roofing system. For instance, the solar cell module can be integrated into a standard roofing structure. Existing and well-known roofing structures can be used for photovoltaic energy generation with minimal effort and / or without substantial modifications. Only the racking system needs to be installed. For example, the existing pier assembly of known roofing systems or structures can be used as is, and an existing area element can be used for mounting the solar cell module. For example, the solar cell module is a thin, flat component. The solar cell module can be installed on any device used, for example, for crop protection, regardless of the area or the specific crop being covered. Regardless of the specific type of area element mounted, the solar cell module can be used in a variety of applications, such as sheet area elements, hail and / or insect protection, and can be detachably integrated using zippers. For example, the solar cell module can be quickly and easily mounted or installed on the roofing device. For example, the solar cell module can be removed from the roof when not in use or for other reasons, and / or replaced, for example, for repair purposes, and / or mounted on another roofing device, or simply stored. With the solar cell module integrated into the roof, year-round use is also possible. For example, it can even serve a dual purpose: the solar cell module acts as a protective cover for a section of the area element that is kept compressed beneath it, in addition to its function of generating electricity year-round. Thanks to the solar cell module, it is no longer necessary to overwinter or store the area element elsewhere, which was previously essential and laborious. For example, the solar cell module rests directly on the upper side of a section of the area element. For example, the solar cell module is detachably mounted on the area element exclusively by means of a rack and pinion. For example, the upper side of the area element section is formed, for example, flat and level. For example, the solar cell module is typically mounted flat and level on the device when in power generation mode. For example, regardless of whether the solar cell module is, for example, tensioned flat, the remaining sections of the protective roof are also tensioned. For example, the upper side of the area element section, and therefore the solar cell module attached to it in a detachable manner, faces outwards, towards the atmosphere, and thus towards the sun. The spatial orientation of the mounted solar cell module, such as its tilt relative to the horizontal, is advantageously adapted to the solar radiation to achieve optimal solar cell performance. The solar cell module is located on the exterior, covering a portion of the area element. For example, the solar cell module, in a tensioned state, can be integrated into the area element according to its flat extension or a formed plane. For example, the plane formed by the solar cell module is parallel to a plane encompassed by the area element extending across its entire surface.For example, the solar cell module and the underlying area element section form a multi-layered structure, such as a two-, three-, or four-layer structure. For example, in a protective roof, the solar cell module forms a partial area zone of the area element or a partial zone of the upper or outer side of the protective roof. For example, the solar cell module is strip-shaped and constitutes a continuous functional unit for energy conversion. The length of the solar cell module is, for example, equal to or nearly equal to the length of the continuous unit of the area element or the corresponding section of the area element. For example, the length of the solar cell module corresponds to a partial length of the continuous unit of the area element or the corresponding section of the area element. For example, a zipper unit features a slider and two elongated side parts that can be detachably hooked together. For example, zipper fasteners are designed as joining means that operate on the principle of a zipper unit. For example, zip-type fasteners with a zip-type locking unit are also considered zipper fasteners. Zipper fasteners are available as a standard, robust, and proven product in a wide variety of configurations. They constitute an easy-to-open fastening system based on form coupling. For example, a longitudinal axis of the zipper unit extends in the longitudinal direction of the ridge element, for example, horizontally and / or parallel to the longitudinal axis of the ridge element. For example, a longitudinal axis of the rack unit extends vertically and / or transversely to the longitudinal direction of the ridge element. For example, a solar cell module has exactly one rack unit, exactly two rack units, or more than two rack units. For example, a solar cell module has a first rack unit and a second rack unit. For example, the longitudinal axis of the first rack unit is aligned parallel to the longitudinal axis of the second rack unit. For example, the longitudinal axis of the first rack unit is not aligned parallel to, but rather transversely to, the longitudinal axis of the second rack unit. For example, in a square-plan solar cell module, there are two rack units separated from each other and offset in parallel, whose longitudinal axes are parallel. For example, in a square-plan solar cell module, there are two separate and parallel-displaced first rack units with longitudinal axes parallel to each other, and two further separate and parallel-displaced second rack units with longitudinal axes parallel to each other and transverse to the longitudinal axes of the first rack units. The rack means form a frame-like arrangement on the exterior, along the edges of the solar cell module. For example, a solar cell module is a unit designed to convert light energy into electrical energy or energy suitable for generating electricity. For example, a solar cell module comprises two or more subunits, or several subunits that make up the solar cell module can interact to generate electricity; for example, they can be electrically interconnected. For example, exactly one rack unit is provided for several interconnected solar cell subunits, or there are several rack units for several interconnected solar cell subunits. Another aspect of the invention consists of providing a solar cell module connected to the area element, so that when light falls on the solar cell module, the light energy can be transformed into electrical energy, for which purpose quick-closing means are provided comprising a locking means with a locking unit, in order to detachably attach a solar cell module to the area element by means of said locking means. In this way, the connection using hook and loop or Velcro fasteners can be established or closed, and disassembled or released, quickly, easily, and reversibly as many times as desired. This can be done, for example, manually, intuitively, and with just a few steps. For example, a thistle fastening unit comprises two flat, flexible thistle strips that can be reversibly and detachably fastened together. A thistle fastening unit is, for example, in the form of a strip or a flat area. The two thistle strips comprise, for example, a first thistle strip with flexible loops, such as a loop tape. The two thistle strips also comprise, for example, a second thistle strip with flexible hooks, such as a hook tape. The first thistle strip can be reversibly attached to the second thistle strip, for example, by pressing them together. For example, a thistle strip of the thistle fastening unit is non-detachably fixed to the area element. For example, a first or second thistle strip of the thistle fastening unit is sewn, glued, welded, or bonded as a single piece to the area element.The same applies to the assembly of the other thistle strip, for example, the second or first thistle strip of the thistle closure unit, to the solar cell module. The orientation or arrangement of a thistle closure unit is, for example, along the longitudinal direction of the ridge zone or with respect to the longitudinal direction of the ridge element. The orientation or arrangement of a thistle closure unit is, for example, transverse or oblique with respect to the longitudinal direction of the ridge zone or with respect to the longitudinal direction of the ridge element. For example, a thistle closure unit extends along a longitudinal edge of the solar cell module or an area element, or along a longitudinal edge of a strip-shaped zone of the area element. For example, several thistle closure units with identical and / or different orientations can be provided to join a solar cell module to the area element. For example, exactly one thistle closure unit is provided for each solar cell module for joining to the area element.For example, exactly two, exactly three, or exactly four thistle closure units are provided for each solar cell module for attachment to the area element. For example, the solar cell module has a flexible structure. For example, the solar cell module exhibits deformable behavior without affecting its energy conversion and / or supply function. For example, the solar cell module can be folded to save space. For example, the solar cell module is designed to be at least partially foldable, elastic, rollable, and / or capable of being pleated. For example, the solar cell module has a relatively small thickness, on the order of millimeters. For example, the solar cell module has a thickness of one or two digits in the millimeter range. For example, the solar cell module can be laid flat. For example, the solar cell module is designed as a sheet module. For example, the solar cell module is designed to be flexible. For example, the solar cell module can be designed or is designed as a flat module. For example, the solar cell module can be designed or is designed as a rollable module. For example, the solar cell module is designed so that it can be wound and unwound. For instance, the solar cell module can be supplied in its wound form, such as a coil. The wound solar cell module can be supplied in a compact and space-saving manner, for example, for storage or transport. For example, the solar cell module can optionally be deployed flat as an area element, for example, in its position within the mounted device. Alternatively, the solar cell module can be provided separately from the area element in the form of a coil or folded several times into a compact form. For example, the solar cell module is designed as a multi-layer module. For example, a solar cell module comprises a thin-film solar cell, such as a silicon solar cell, which includes a photoelectrically active layer and a support layer. The support layer provides mechanical stability to the solar cell module; for example, it is a support layer component. The solar cell module is designed, for example, with a solar cell layer component, or a photovoltaic layer component, or PV layer component, and a support layer, for example, a backing layer component, on or beside which the solar cell layer component is applied. For example, a side portion of the zipper unit and / or a thistle strip of the thistle closure unit is located on the support layer, for example, sewn, welded, fused, and / or glued to it. For example, an edge of the support layer protrudes above an edge of the solar cell or thin-film solar cell, in which case a side portion of the zipper unit and / or a thistle strip of the thistle closure unit is located on the protruding edge. For example, the support layer is composed of a sheet material or a fabric. For example, both the support layer and the solar cell layer component have a flexible design. For example, both the support layer and the solar cell layer component are bonded to each other in a planar, point, or linear manner, for example, using adhesive. A solar cell module is, in particular, a photovoltaic module. For example, a solar cell module is a thin-film element. For example, a solar cell module is, among other things, a foil-layer element, a textile or foil component, or a foil element, such as a foil component. The solar cell portion is integrated into or applied to a substrate or support layer, such as a foil. For example, a solar cell module is designed as a photovoltaic module (PV module), also known as a photovoltaic sheet, PV sheet, PV sheet module, or solar cell module. For instance, a solar cell module has a flat configuration with a flat or top side that serves to convert light energy and faces outward when the solar cell module is mounted on the device. For example, the solar cell module is detachably attached to the area element via a section of the solar cell module's edge using a hook fastener. Alternatively, the solar cell module can be detachably attached to the area element via a section of the solar cell module's edge using a zipper fastener. This is particularly practical for handling the rack and pinion fasteners or the locking mechanism. Furthermore, this solution allows for the secure attachment of the solar cell module to the area element. The type, position, number, and / or dimensions of the rack and pinion fasteners or their components, and / or the locking mechanism or its unit, are selected accordingly. For example, these parameters depend on factors such as the size, weight, and / or shape of the solar cell module. For example, a solar cell module is provided with exactly one rack unit in the device or in an area element or in a section of said area element. For example, a solar cell module is provided with exactly one thistle locking unit in the device or in an area element or in a section of said area element. For example, the solar cell module is detachably attached to the area element along two opposite edges of the solar cell module, for example, attached linearly. For example, the solar cell module has an essentially polygonal or quadrangular planform, such as a rectangle. For example, the solar cell module, in its basic form, has a quadrangular or rectangular outer outline. For example, one side portion of the zipper unit is non-removably attached to the area element. For example, one side portion of the zipper unit is sewn, glued, welded, or bonded as a single piece to the area element. The same applies to the mounting of the other side portion to the area element. For example, a hook fastener unit has two hook strips that can be detachably hooked together. The two hook strips comprise, for example, a hook strip with flexible loops, such as a loop tape. The two hook strips comprise, for example, a hook strip with flexible hooks, such as a hook tape. For example, one hook strip of the hook fastener unit is non-removably attached to the area element. For example, one hook strip of the hook fastener unit is sewn, glued, welded, or bonded as a single piece to the area element.The same applies to mounting the other thistle strip of the thistle closure unit to the area element. For example, alternatively, one side of the rack unit is attached to the area element in a detachable or separable manner without causing damage, for example, by means of a hook. The same applies to the mounting of the other side to the area element, if it is not permanently attached. According to another example, a zipper unit has a slider and two elongated side parts that can be detachably hooked together, in which case one of the side parts of the zipper unit is present in the solar module and the other side part of the corresponding zipper unit is present in the area element. For example, the side parts comprise flat, flexible strips, such as fabric strips. For example, the zipper unit is a standard or ordinary zipper unit. For example, the two side parts are thin and flexible. For example, the two side parts are configured as elongated, narrow pieces that interact via the slider or can be separated and engaged. For example, with the zipper unit, both side parts are arranged to provide, in a functionally correct manner, the detachable arrangement of the solar module on the area element, according to the function of the zipper mechanism. A zipper unit comprises the slider and the two elongated side parts that can engage with each other. For example, each side part has a plurality of regularly arranged and formed engagement elements. The engagement elements are, for example, tooth-shaped.Using the cursor, the locking mechanisms on one side can engage with the locking mechanisms on the other side and then disengage. When the locking mechanisms are engaged, both sides are securely joined together. For example, the rack system features two rack units that operate independently to allow for detachable attachment of the solar cell module to the area element. The two rack units operate separately. For example, there may be exactly two rack units or more than two rack units, each independent of the others. For example, the two or more rack units all have the same structure. For example, the two rack units are of the same length.For example, the two or more rack units differ from each other, for example, in type and / or length. For example, exactly one solar cell module is detachably attached to the area element by exactly two rack units. For example, for each solar cell module, there are exactly two or more rack units, separated from each other and arranged continuously. For example, a solar cell module is attached to the area element by exactly two rack units, which connect the module to the area element at opposite edges of the solar cell module. A first rack unit has one side portion on a first edge of the solar cell module and the corresponding other side portion of the rack unit is located on the area element. A second rack unit has one side portion on a second edge of the solar cell module, and the corresponding other side portion of the rack unit is located on the area element. Consequently, the two side portions are located on the area element at a distance corresponding to the distance between the corresponding side portions of the solar cell module. For example, a single solar cell module is connected to a single area element, specifically a section of the area element. This section of the area element is spatially fixed. For example, the area element section has a strip-shaped sheet section located in the direction of the nearest ridge or at the top. This section of the area element is a sheet section that is fixed at two opposite edges, such as longitudinal edges, to a support of the area element, such as a support mesh. In this way, the section maintains essentially the same spatial orientation, as the support and the sheet are extended and tensioned over the protective roof. For example, the support forms a tensioned lower side of the area element. For example, the support is tensioned across its entire area by means of tensioning devices such as tension wires.The spatial orientation of the mounted solar cell module is maintained, at least in its essential aspects, on the area element or the flat protective roof. This ensures optimal performance of the solar cell module for electricity generation, even, for example, in windy conditions. For example, a section of the area element adjacent to the solar cell module has a sheet section that is attached to the support by one longitudinal edge of the sheet section but not by another edge, such as an opposite longitudinal edge. This allows the adjacent section or the sheet section to lift off one side of the support, which can be caused, for example, by wind or thermal currents. An exemplary variant is characterized by the fact that two zipper units are provided in such a way that a detachable arrangement of the opposite edges of the solar cell module is established in the area element. For example, there are exactly two rack units for exactly one solar cell module. For example, when there are several solar cell modules in the area element, exactly two rack units are provided for each of them, or more specifically, for each solar cell module. In the case of the two rack units, they are spatially separated on the solar cell module and on the area element. For example, the two rack units operate separately or independently of each other. Each rack unit can be actuated independently of the other rack units, for example, by opening or closing, or by being in an open, partially open, or closed state. For example, for the detachable mounting of the solar cell module to the area element, exactly one rack unit and exactly one latch unit are provided. Likewise, all other combinations of the number of rack and latch units are possible for mounting the solar cell module to the area element. A respective rack unit is considered closed when both side parts are engaged, allowing the solar cell module to generate or supply electrical power while the protective roof is in operation. The basic function of the extended protective roof remains fully and permanently operational, regardless of the presence of the solar cell module. When the solar cell module is installed on the area element, solar radiation generates electrical power, for example, for electrical consumers located near the protective roof and / or to supply power to a grid or energy storage unit. According to the invention, the solar cell module is located in a zone of the device adjacent to a ridge element of the ridge zone. The solar cell module is present in a strip of the area element that runs parallel to the ridge element, within said strip, adjacent to the ridge element. For example, an edge of the solar cell module borders the ridge zone either immediately or slightly offset from an upper end of the ridge zone; for example, offset between 5 and 10 cm downwards from the upper end of the ridge element. For example, the ridge zone extends in the longitudinal direction of the ridge element. For example, the ridge zone is strip-shaped, with a width between 40 centimeters (cm) and 60 cm, for example, 55 cm wide. For example, the ridge zone has opposing longitudinal edges, in which case one longitudinal edge is oriented towards the ridge element; for example, it extends along the length of the ridge element; for example, it extends parallel to the longitudinal axis of the ridge element. For example, the area covered by the installed solar cell module represents between 5% and 100% of the total area of ​​the protective roof. The degree of coverage depends, for example, on the type of crop being covered. The solar cell module arranged covers, for example, from 70% to 100% of the total area of ​​the ridge zone. For example, the solar cell module has a width of 15 to 60 cm; for example, the solar cell module has a width of 30 to 55 cm; for example, 35 cm, or a width of 55 cm. For example, the area element protrudes along one or both longitudinal edges of the solar cell module, that is, on one or both sides, by 5 to 15 centimeters continuously from the corresponding longitudinal edge. For example, the area element protrudes longitudinally on both sides by 10 centimeters continuously along the longitudinal edges of the solar cell module. The length of the solar cell module corresponds, for example, to the total length of the ridge zone, the area element present below it, or the total length of the ridge element. For example, in relation to the total area of ​​the protective roof, which extends with the area element of the roof itself, the proportion of the total area provided by the solar cell module is between 5% and 100% of the total area of ​​the protective roof. For example, in relation to the total area of ​​the protective roof, which extends with the area element of the roof itself, the proportion of the total area provided by the solar cell module is, for example, 10%; for example, 20%; for example, 30%; for example, 40%; for example, 50%; or for example, more than 50% of the total area of ​​the protective roof. The solar cell module comprises either a single continuous component or several separate solar cell submodules, such as multiple identical or different solar cell submodules. The various solar cell submodules can thus be arranged in individually selectable or distinct areas of the area element. For example, each solar cell submodule, with, say, exactly one rack unit, exactly two rack units, or more than two rack units, can be attached or is detachably attached to the area element. According to an exemplary modification, a first rack unit and a second rack unit are provided, each with two side parts and a slider. In this configuration, a side part of the first rack unit is located along a first longitudinal edge of the solar cell module, and a side part of the second rack unit is located along a second longitudinal edge of the solar cell module. This allows the solar cell module to be stably and securely mounted onto the area element. Correspondingly, a side part of the first rack unit and a side part of the second rack unit are located on the area element. The orientation and spacing of the side parts on the area element correspond to the orientation and spacing of the side parts on the solar cell module. According to an exemplary modification of the invention, the zipper means comprise a first zipper unit and a second zipper unit, each with two side parts, wherein the area element contains a side part of the first zipper unit and, at a certain distance from the side part of the first zipper unit, a side part of the second zipper unit is located on the area element. A zipper unit further comprises, as standard, a slider that acts between the two side parts to open and close the zipper. For example, the side part of the first zipper unit and / or the side part of the second zipper unit are attached to the area element by a needle-and-thread joining process, or are sewn with one or more threads.For example, a side part is attached to the area element by means of an adhesive bond and / or a welded joint, for example, a thermoplastic or plastic weld. Adhesive or welded assembly can be used as an alternative to, or in addition to, a sewn joint. For example, the other side of the first rack unit is attached to a first edge, such as a first longitudinal edge of the solar cell module. For example, the other side of the second rack unit is attached to a second edge, such as a second longitudinal edge of the solar cell module. The area element has a first area element section, present adjacent to the ridge element and extending in the longitudinal direction thereof; furthermore, the area element comprises a second area element section, present next to the first area element section, on one side of the first area element section not facing the ridge element, in which case the solar cell module is present on an outer side of the first area element section. In this way, it is possible to place the solar cell module at an advantageous or maximum height of the protective roof. For example, the first section of the area element extends in a strip, for example, along the entire length of the ridge zone. For example, the first section of the area element forms the ridge zone, for example, on both sides of a longitudinal side of the ridge element. For example, the first section of the area element slopes downwards, i.e., inclined with respect to the horizontal, from a side facing the ridge element to a side not facing it. For example, the width of the first section of the area element, perpendicular to the longitudinal axis of the ridge element, ranges from 40 to 70 centimeters. For example, the width of the first section of the area element is 55 centimeters. The second section of the area element has a width that is a multiple of the width of the first section of the area element. For example, the second section of the area element comprises several parallel, strip-shaped sections, each formed by an upper sheet element, such as a sheet strip. For example, each sheet element is attached, for example, by stitching along an upper longitudinal edge of the sheet element to an underlying support of the area element, such as a hail net. For example, the opposite front side edges and a lower longitudinal edge of the sheet element rest freely on the support. For example, the support is located beneath the first section of the area element and the second section of the area element, or beneath all the various sheet elements. The support, like the hail net, is, for example, a continuous, tensioned, and flat mesh element. For example, the spatial orientation of the tensioned support determines the slope of the first section of the area element and the second section of the area element, or indeed of all the sheet elements. As a general rule, the second section of the area element extends to a lower longitudinal edge or the eave side of the area element or protective roof that can be tensioned with it. For example, the area element comprises an outer sheet and a support beneath the sheet, such as a mesh element. For example, the sheet is a flexible, flat, laminar component. For example, the sheet is flat and closed, i.e., without holes; or, for example, the sheet is not perforated. For example, the sheet is impermeable to rain, snow, and wind. For example, the sheet is made of a plastic material. For example, the sheet is translucent or transparent, or partially transparent to some light or sunlight. For example, when the device is in operation, the sheet forms an outer side of the area element facing the atmosphere, such as the top side of the area element, for example, an outer side of the protective roof. For example, the support is regularly perforated with numerous openings or holes without any material. For example, the support is a mesh element, such as a flexible textile mesh element. For example, the mesh element is a hail net or a hail net and / or a mosquito net. For example, the mesh element is commonly used in agriculture, for example, for hail or insect protection in fruit crops such as cherries and similar trees. Furthermore, another exemplary configuration is obtained when the solar cell module includes a flexible support material to which one of the side parts of a zipper unit is attached. For example, it is very simple to sew the side part, which is usually flexible, to the flexible support material of the solar cell module. For example, the support material of the solar cell module is a thin, flexible material. For example, the support material is a sheet material. For example, the support material is a flat material, such as a flat sheet material, a plastic material, or a flat textile or fabric material. For example, the photovoltaic unit, i.e., the active photoelectric layer or the active photovoltaic layer of the solar cell module, is present in the support material, for example, fixed or integrated into it. For example, a side portion of a zipper unit is stitched, as in the area element or support material of a solar cell module. Stitching devices are commonly used in existing manufacturing facilities and processes for roofing systems with flexible area elements to join or fasten components. Such stitching devices could also be used to manufacture the device according to the invention or a roofing system according to the invention. For example, a zipper side section is sewn to a sheet and / or mesh, or similar material. For instance, the side section of a zipper unit is sewn to a sheet and a support material provided beneath it in a single stitching operation, in which case the area element can be joined to the support material and / or other parts of the device simultaneously. According to one exemplary configuration, the solar cell module includes an electrical contact point, and the device features a wiring section that is fixed to a component of the device and is intended to establish electrical contact with the electrical contact point of the solar cell module. This wiring section includes, for example, an electrical cable. For instance, a cable section is attached to an existing part of the device, such as the pillar assembly or to the pillars and / or a ridge element.For example, the cable run can be routed from the outside along these components to the contact point of the solar cell module. For example, it is possible to establish an electrically conductive and externally isolated connection between the contact point and an energy storage device or a power grid. For example, fastening means are provided to hold a portion of the area element in a storage position, in order to temporarily place said portion of the area element in a non-covering arrangement, such that the portion of the area element in the storage position is folded, rolled, or pleated upwards, towards the ridge area, and is held below a section of the area element connected to the solar cell module, in which case the portion of the area element in the storage position is covered by the section of the area element connected to the solar cell module. For example, the solar cell module can fulfill an additional function in the roofing system, complementing or serving as an alternative to generating electricity. For instance, in winter, if the roofing function is not configured for the protective roof, the area of ​​the roof element equipped with the solar cell module acts as a cover for the rest of the roof element when it is folded or held compactly and compressed beneath the area element with the solar cell module using fastening devices. The solar cell module then provides protection against UV rays, temperature fluctuations, rain, and / or snow, or other types of mechanical and chemical protection for the roof element.At the same time, the advantageous energy-harvesting function of the solar cell module for generating electricity from light energy is maintained, even, for example, in winter or autumn. For example, the fastening means comprise elongated elements, such as elastic elements. For example, the fastening means comprise an elastic band and / or a cable tie and / or a rope and / or a tape and / or a wire and / or a strip of sheet or mesh, or the like. According to one exemplary embodiment, the fastening means comprise an elongated, flexible wrapping member, said wrapping member being able to wrap around the outside of the folded or rolled area of ​​the element in the storage position. The wrapping member can, for example, be subjected to tension.For example, the wrapping member has a hook at one end for attaching to a hook section, such as a hook section of the pillar assembly or the ridge element, or to the other end of the wrapping member. For example, the wrapping member is loop-shaped. For example, the invention relates to a device for installation in a roofing system; said roofing device serves to roof an outdoor area, such as cultivated land for crops or agricultural use, or other areas of economic use; said roofing device comprises an area element and a pillar assembly, and the area element, supported by the pillar assembly, serves to form a flat protective roof over said area. For example, the device features a solar cell module connected to a retrofit area element, the device being configured as a retrofit assembly for mounting on the roof device, such that the retrofit area element can be subsequently mounted on the area element of the roof device. For example, a single solar cell module is mounted on a continuous design retrofit area element. Alternatively, several solar cell modules, such as several identical solar cell modules, can be mounted on a continuous design retrofit area element. For example, the retrofit area element equipped with the solar cell module is designed so that it can be mounted on exactly one side of the protective roof, which is inclined at an angle to the ridge area. For example, the area containing the solar cell module is located along a longitudinal axis of the retrofit area element. For example, the retrofit area element equipped with the solar cell module is designed to be located on both sides of the ridge area. For example, the retrofit area element equipped with the solar cell module is designed to cover the ridge area and the adjacent sections below the protective roof formed by the roofing device. The covered areas are respectively inclined, for example, at different spatial inclinations, but, for example, forming the same angle with respect to the vertical. For example, in such a retrofit area element, there are two separate and parallel zones of the retrofit area element equipped with a solar cell module. A distance exists between the two zones of solar cell modules.This distance covers, once the device is mounted on the roofing device, the ridge area of ​​the existing roofing device. In this way, the solar cell module can be advantageously installed on an existing roof structure, for example, a conventional roof. Advantageously, the existing roof structure can be used permanently and / or temporarily to generate energy from sunlight. For example, the retrofit area element is attached to the existing roofing system area element using fasteners such as quick-release mechanisms. These fasteners may include, but are not limited to, zippers, hook and loop fasteners, snaps, and adhesives. Alternatively, the retrofit area element may be attached to the existing roofing system area element by sewing. For example, the retrofitting of the retrofitted area element onto the existing roofing system area element is carried out using mounting methods that are common or standard in structures, such as those used in agriculture for cultivating crops or other useful plants. This is advantageous from an economic and technical standpoint, and also, for example, in terms of ease of use. For instance, the mounting methods refer to those designed for the temporary or permanent mounting of the retrofitted area element onto the roofing system area element. For example, the retrofit area element equipped with the solar cell module is mounted on a roofing device that is already in use, for example, outdoors. For example, the retrofit area element equipped with the solar cell module is mounted on the top side or above an existing area element, or on the top side of an area element of the existing roofing device. For example, the area element of the existing roofing device is, for example, a sheet, mesh, hail net, fabric, and / or any other flexible area element. For example, the retrofit area element can be mounted on an area element of the existing roofing system, with said area element adjacent to a ridge zone of the existing roofing system for roofing outdoor areas, such as growing areas for cultivated or useful plants, or other areas of economic use. The assembly of pillars can be anchored to a ground area within that zone. For example, the retrofit area element is flexible, i.e., it can be rolled up and folded. For example, the retrofit area element is strip-shaped, for example, rectangular at its base. For example, the retrofit area element is a sheet, mesh, hail net, fabric, and / or any other flexible area element. For example, when mounted on the roofing device, the retrofit area element extends alongside the roofing device over a partial area, for example, above or near the ridge, of the protective roof provided by the roofing device. For example, once mounted on the roofing device, the retrofit area element extends alongside the roofing device along one longitudinal side of the retrofit area element in the ridge zone, from that zone downwards towards the eaves zone. For example, the retrofit area element, once mounted on the roofing device, extends from the top to cover approximately 20% of the total width or height of one side of the roofing device's protective roof. For example, the width of the retrofit area element, which may be strip-shaped, is 0.1 meters, 0.2 meters, 0.3 meters, or from 0.4 meters to 0.6 meters, for example, 0.5 meters, relative to the left or right side with respect to a ridge element in the ridge zone.For example, in the case of a continuous retrofit area element that extends beyond the ridge element and extends on both sides into the ridge area, the width of the retrofit area element is, for example, 0.2 to 1.2 meters. For example, a predominant portion of the relevant side of the retrofit area element is covered by the solar cell module. For example, from 10% to over 90%, for example, from 70% to 90%, or for example, 80% of the relevant side of the retrofit area element is covered by the solar cell module. For example, the solar cell module is mounted on the retrofit area element in a detachable and / or non-detachable manner. The connection of the solar cell module to the retrofit area element is detachable or non-detachable. For example, the retrofit kit includes quick-release fastening means for mounting the solar cell module on the retrofit area element, comprising rack means with a rack unit and / or comprising locking means and / or snap-on fastening means. For example, the solar cell module is stitched to the retrofit area element. For example, the solar cell module is attached to the retrofit area element. For example, the solar cell module has a square base. For example, the solar cell module is attached to the retrofit area element along its edges, for example, along opposite longitudinal edges. For example, the retrofit area element can be attached in a detachable and / or non-detachable manner to the roofing device area element. For example, the retrofit area element can be joined to the roofing device area element by means of a plate. For example, the plate comprises two elements between which a section of the retrofit area element and a section of the roofing device area element are compressed and secured. To achieve this, the two plate elements are pressed together to join the section of the retrofit area element and the section of the roofing device area element, or the two overlapping layers of these area elements. For example, when the retrofit area element is joined to the roofing device area element by means of a plate, the two plate elements are pressed together and are firmly joined, for example, in a detachable manner. For example, when the retrofit area element is joined to the roofing device area element by means of a plate, the two plate elements are mutually fitted, mutually locked, mutually hooked or mutually closed, or otherwise fixed to each other. The sections of the retrofit area element and the roofing device area element can be joined together, in addition to or exclusively, by means of screw fastening. The sections of the retrofit area element and the roofing device area element can be joined together, additionally or exclusively, by means of quick-release fastening means such as, for example, snap fastening means, zipper means or hook fastening means. The sections of the retrofit area element and the roofing device area element can be joined together, either additionally or exclusively, using adhesives. The sections of the retrofit area element and the roofing device area element can be joined together, additionally or exclusively, by stitching. The sections of the retrofit area element and the roofing device area element can be joined together, additionally or exclusively, by plastic welding. A roofing device is proposed for roofing an outdoor area, such as farmland for cultivated or useful plants, or other areas of economic use, comprising an area element and a pillar assembly with pillars, in which case the area element supported by the pillar assembly serves to form a flat protective roof over said area, a section of the area element extends along a ridge area of ​​the protective roof, with a device as described above for said roofing device. In particular, a roofing device is proposed for roofing an outdoor area, such as areas for growing cultivated or useful plants, or other areas of economic use, comprising an area element and a pillar assembly, in which case said pillar assembly can be anchored to an area of ​​the ground of the area; the area element, supported by the pillar assembly, serves to form a flat protective roof over the area; a section of the area element extends along a ridge area of ​​the protective roof, with a device as described above for said roofing device. Another aspect of the invention relates to a device for roofing an outdoor area, such as growing areas for cultivated or useful plants or other areas of economic use, comprising an area element and a pillar assembly, the pillar assembly being anchorable to an area of ​​the ground of the zone and the area element supported by the pillar assembly serving to form a flat protective roof over the zone, in which case a section of the area element extends along a ridge area of ​​the protective roof. For example, a solar cell module is provided, which is permanently attached to a first section of the area element. When light strikes the solar cell module, the light energy can be converted into electrical energy. The first section of the area element is fixed to the ridge area and, in addition to being fixed there, is attached to a second section of the area element. This permanent connection is achieved, for example, by gluing, plastic welding, and / or stitching. In this way, the rolled, folded, or pleated section of the area element can be securely fixed and held below the upper section of the area element, which is fitted with and covered by the solar module. This protects the rolled, folded, or pleated section of the area element from harsh weather conditions, for example, during the winter.There's no need to move the area element in question, for example, to a warehouse, which is advantageous both economically and technically. Next spring, this area can be quickly and easily reassembled to form the protective roof. As an example, the first section of the area element is detachably attached to a ridge element of the ridge zone. Suitable for detachable attachment are fastening connectors such as orchard roofing plates, clamps, tensioning or expanding straps, or similar. Furthermore, as an example, in relation to the total area of ​​the solar cell module, a portion of it is covered by the hook-and-loop fasteners, ranging from 5% to 50%. A corresponding strap is used in this context. This achieves a detachable, stable, and secure connection between the solar cell module and the area element. The area element, for example, incorporates the other hook-and-loop fastener straps, each with a corresponding area size. Description of the figures Other features and advantages of the invention are explained in more detail using schematic examples of its embodiment. Specifically: Fig. 1 shows a horizontal front view of a roofing device, Fig. 2 shows an oblique perspective view from above of a section of a roofing device, Fig. 3 shows an enlarged detail of a protective roof of the device according to Fig. 2, Fig. 3a shows a cross-section along cut AA of Fig. 3 through a section of the protective roof, Fig. 3b shows a cross-section through cut BB of Fig. 3 through a section of the protective roof, Fig. 4 shows, in the view of Fig. 3, a section of a protective roof of an alternative roofing device to the device in Fig. 2, in which there is no solar cell module. Fig. 5 shows a solar cell module that fits the section of Fig. 4, viewed from below. Fig. 6 shows a section of a roofing device with the protective roof partially folded, in oblique perspective view from above. Fig. 7 shows, in horizontal front view, an extended protective roof, Fig. 8 shows the protective roof of Fig. 7 in horizontal front view, with a portion of it folded and secured, Fig. 9 shows, in horizontal front view, an extended protective roof of a roofing device with a retrofit assembly and Fig. 10 shows a horizontal front view of an extended protective roof arrangement of a roofing device with an alternative retrofit assembly. Fig. 1 shows a device 1 for roofing an outdoor area 2 such as, for example, growing areas for cultivated or useful plants or other areas of economic use, comprising an area element 3 and a set of pillars 4 with pillars 5. For example, the pillars 5 are configured as scaffold bars. The pillar assembly 4 is anchored or can be anchored to a floor area 6 of zone 2. The area element 3, supported by the pillar assembly 4, serves to form a flat protective roof 7 above zone 2. A section 3a of the area element 3 extends along a ridge zone 8 of the protective roof 7. The ridge zone 8 features, for example, a ridge element 8a, such as a tensioned ridge wire. For example, the protective roof 7, in the form of a multi-pitched roof, has several parallel ridge zones 8. For example, an edge section of the area element 3 extends along a respective ridge zone 8. In the example shown, each ridge zone 8 is configured, in a pitched roof arrangement of the protective roof 7, at an angle with subzones that converge with each other. In an alternative, unshown configuration of the protective roof, which is either bulging outwards or curved upwards, the ridge area is curved on both sides towards the highest part of the protective roof. Device 1 provides several ridge areas 8, each with two solar cell modules 9. Each solar cell module 9 is connected to the area element 3, so that when light strikes the solar cell module 9, the light energy can be converted into electrical energy. For example, quick-release fastening means 10 comprising zipper means 11 with a zipper unit 12 have been provided, for detachably a solar cell module 9 in the area element 3 by means of the zipper means 11. For example, quick-release fastening means 10 are provided comprising hook-and-loop fastening means 13 with a hook-and-loop fastening unit 14, for detachably arranging a solar cell module 9 in the area element 3 by means of the hook-and-loop fastening means 13. The zipper unit 12, for example, a first zipper unit 12a and a second zipper unit 12b, has a slider 15 and two elongated side parts 16, 17 that can be detachably hooked together (see Fig. 3). Figures 3a and 3b illustrate the assembly of, for example, a side part 16 by sewing it onto area element 3. On an upper longitudinal edge, facing the ridge element 8a, of the first section of area element 3a, designed as a sheet strip, or of section 3a of area element 3, for example, according to section AA of Fig. 3, a side portion 16 is attached, resting at the top on a strip-shaped sheet 18 of section 3a. The side portion 16 is sewn to section 3a of the area element, to the sheet 18, and to a mesh element 19 below by means of a sewing thread 20. The sewing thread 20 joins, passing through them, the side portion 16 of the rack unit 12a, the sheet 18 of section 3a, and the mesh element 19 (see Fig. 3a). A side portion 17 belonging to the rack unit 12a is, for example, sewn or glued to the corresponding solar cell module 9. A side portion 16 is attached to a lower longitudinal edge, not facing the ridge element 8a, of the first section of area element 3a, configured as a sheet strip, of area element 3, for example, according to section BB of Fig. 3. The side portion 16 is located above the sheet 18 of section 3a of the area element and is sewn with sewing thread 22 to a sheet 21 of the second section 3b of the area element, in the form of a strip, and to the lower mesh element 19, which extends continuously. The seam or stitch joins an edge of the upper sheet 18 with the lower sheet 21, in which case the edges of sheets 18 and 21 overlap in the seam area. Sewing thread 22 joins by passing through the side part 16 of the zipper unit 12, the sheet 18 of section 3a, the sheet 21 of section 3b of the area element and the mesh element 19 (see Fig. 3b).A side part 17 belonging to the zipper unit 12b is, for example, sewn or glued to the corresponding solar cell module 9. Fig. 6 shows, in perspective and in a section, a device 1. Along the length of a ridge element 8a, device 1 continuously presents, along the entire length and on both sides of the ridge element 8a, the section of area element 3a with the solar cell module 9 present on its upper part. For part of the length of the remaining area element, area element section 3b and other strip-shaped area element sections 3c, 3d, and 3e form a zone of area element 3 in a storage position as shown in Fig. 8 or the front portion of Fig. 6. In the storage position, area element sections 3b, 3c, 3d, and 3e are held and folded or stacked together, forming a closed portion of the protective roof 7, for example, for winter storage. The closed portion of the protective roof 7 has a reduced volume and is secured and protected beneath the area element section 3a containing the solar cell module 9 (see Fig. 8; front portion in Fig. 6). Another part of the protective roof 7, comprising the tensioned area element section 3a with the solar cell module 9 and a zone with the other deployed area element sections 3b, 3c, 3d and 3e, is open to roof zone 2. In Fig. 7, the sheet strips free on one side of the sheet element sections 3b-3e are shown, deflected upwards towards the mesh element 19, for example, by the effect of the wind. All parts of the protective roof 7 shown feature, during their operation for power generation, the solar cell modules 9 that are flat and spatially oriented diagonally. There are fastening means 23 for securing, enveloping the area of ​​element 3, comprising area element sections 3b, 3c, 3d, and 3e, in the storage position, in order to temporarily arrange this area of ​​element 3 in a non-covering arrangement. The areas with area element sections 3b-3e, together with part of mesh element 19 in the storage position, are folded or rolled upwards towards the ridge area 8 and held below the area element section 3a connected to the solar cell module 9. The fastening means 23 comprise, for example, a winter strap, such as an elastic strap with fastening means at the ends, such as a rigid hook. For example, the fastening means 23 hang loosely downwards when not in use, as shown in Fig. 7. The fastening means 23 are fixed, for example, to pillar 5 and / or ridge element 8a and can be hooked, for example. For example, according to Figures 4 and 5, a thistle closure unit 14 has two flat, flexible thistle strips, comprising a first thistle strip 24 and a second thistle strip 25. The thistle strips 24 and 25 can be reversibly hooked together and unhooked. For example, the first thistle strip 24 is provided with flexible loops, e.g., a loop tape. For example, the second thistle strip 25 has flexible hooks, e.g., a hook tape. For example, in the first section of the area element 3a according to Fig. 4, e.g., on sheet 18, a first upper thistle strip 24 and a first lower thistle strip 24 are mounted parallel to and offset from each other, e.g., sewn, sutured, glued, welded, or fixed as a single piece to the area element. In relation to the thistle strips 24 of the section of the area element 3a, at a corresponding distance on a lower side 9a of the solar cell module 9 according to figure 5, for example, on a support material of the lower side, a second upper thistle strip 25 and a second lower thistle strip 25 are mounted, displaced in parallel, for example, sewn, sutured, glued, welded or integrated into a single piece on the lower side 9a. In this way, the solar cell module 9 can be arranged reversibly and detachably, either by aligning the lower side 9a with the upper side of the area element section 3a or by pressing it onto the sheet 18 and holding it in place. Each thistle strip 24 makes snap-fit ​​contact with a corresponding thistle strip 25. Figure 9 shows, in a very schematic way, a roofing device 26 intended to cover an open-air area with four identical devices 27, which are designed as a retrofit set. Accordingly, the roofing device 26, created, for example, from an existing roofing device, has an area element 28 and a set of pillars 29 with piers 30. The area element 28, supported by the set of pillars 29, forms a protective roof. The area element 28 forms four subsections of the protective roof, each oriented diagonally. Each of the 27 devices has a retrofit area element 31 with a solar cell module 32. The devices are located on both sides along two ridge zones of the protective roof. The corresponding solar cell module is detachably mounted to the retrofit area element 31, for example, by means of a zipper and / or latch. The retrofit area element 31 is mounted, for example, later on the protective roof or area element 28, for example, by means of fastening with plates 33. The arrangement according to Fig. 10 differs from the arrangement according to Fig. 9 only in that two rows of solar cell modules 32, present on both sides of a ridge line of a ridge zone, are mounted on a common retrofit area element 34, for example, by means of a zipper and / or latch. The re-equipment area element 34, which extends continuously along the two ridge zones shown, covers the corresponding ridge line in each case. List of reference signs 1 Device Zone 2 3 Area Element 3a-3e Area element section 4 Pillar Set 5 Pillar 6. Floor area 7 Protective roof 8 Ridge Zone 8a Ridge element 9 Solar cell module 9a Bottom side 10 Quick-release fasteners 11 Zipper media 12 Zipper Unit 12a, 12b Zipper unit 13 Thistle closure methods 14 Cardoon Closure Unit 15 Cursor 16 Side panel 17 Side panel 18 Sheet 19 Mesh Element 20 Sewing thread 21 Sheet 22 Sewing thread 23 Fastening methods 24 Thistle strip 25 Thistle strip 26 Roofing device 27 Device 28 Area Element 29 Set of pillars 30 Pilar 31 Re-equipment area element 32 Solar cell module 33 Plate 34 Re-equipment area element

Claims

1. An agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables, intended to roof an open-air area (2), such as cultivation areas for cultivated or useful plants, or other areas of economic use, comprising an area element (3) and a set of pillars (4) with piers (5), wherein the set of pillars (4) can be anchored to a ground area (6) of the area (2), and wherein the area element (3), supported by the set of pillars (4), serves to form a flat protective roof (7) over the area (2), a section of the area element (3) extending along a ridge area (8) of the protective roof (7), the piers (5), spaced apart from each other, extending vertically from below, from the ground area (6) to the ridge area (8), and there being a ridge element in the ridge area (8). (8a) , extending longitudinally in a transverse direction to the vertical, of the set of pillars (4) ,vertically displaced with respect to the ground area (6) in the ridge zone (8), and in which a solar cell module (9) is provided which is connected to the area element (3), so that, when light falls on the solar cell module (9), the light energy can be transformed into electrical energy; the solar cell module (9) is located in a zone of the agricultural roofing system (1) adjacent to the ridge element (8a) of the ridge zone (8); the area element (3) has a first area element section (3a) present adjacent to the ridge element (8a) and extends in the longitudinal direction of the ridge element (8a); the area element (3) comprises a second area element section (3b-3e) present next to the first area element section (3a),on one side of the first section of the area element (3a) not facing the ridge element (8a); the solar cell module (9) is located on an outer side of the first section of the area element (3a); the solar cell module (9) is located on a strip of the area element (3) running parallel to the ridge element (8a), adjacent to the ridge element (8a); the second section of the area element (3b-3e) has a width that is a multiple of the width of the first section of the area element (3a), characterized in that the area element (3) is flexible, for example, it can be rolled up and unrolled, and quick-release fastening means (10) comprising a zipper means (11) with a zipper unit (12) are provided for dismountably disposing, by means of said zipper means (11), of a solar cell module (9) in the area element (3).

2. Agricultural roofing system (1), as a roofing system for crops,fruit trees and / or vegetables, according to the preamble of claim 1, in particular according to claim 1, in which case a solar cell module (9) is provided which is attached to the area element (3), such that, when light falls on the solar cell module (9) the light energy can be transformed into electrical energy; the solar cell module (9) is present in a zone of the agricultural roofing system (1) adjacent to the ridge element (8a) of the ridge zone (8); the area element (3) has a first area element section (3a) which is adjacent to the ridge element (8a) and extends in the longitudinal direction of the ridge element (8a); the area element (3) comprises a second area element section (3b-3e) present adjacent to the first area element section (3a),on one side of the first area element section (3a) not facing the ridge element (8a); the solar cell module (9) is present on an outer side of the first area element section (3a); the solar cell module (9) is present in a strip of the area element (3) running parallel to the ridge element (8a), adjacent to the ridge element (8a); the second area element section (3b-3e) has a width that is a multiple of the width of the first area element section (3a), characterized in that the area element (3) is flexible, for example, it can be rolled up and unrolled; quick-release fastening means (10) are provided comprising hook-and-loop fastening means (13) with a hook-and-loop fastening unit (14) for detachably disposing of a solar cell module (9) to the area element (3) by means of the hook-and-loop fastening means (13).

3. Agricultural roofing system (1), as a roofing system for crops,fruit trees and / or vegetables according to claim 1 or claim 2, characterized in that the solar cell module (9) has a flexible configuration.

4. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to any of the preceding claims, characterized in that the solar cell module (9) is detachably attached to the area element (3) through an edge area of ​​the solar cell module (9) by means of a rack (11).

5. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to any of the preceding claims, characterized in that a rack unit (12) has a slider (15) and two side parts (16,17) elongated sections that can be detachably attached to each other; one side portion (17) of the rack unit (12) is present on the solar module (9) and the other side portion (16) of the corresponding rack unit (12) is present on the area element (3).

6. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables, according to any of the preceding claims, characterized in that the rack means (11) have two rack units (12a, 12b) that operate independently of each other to allow detachable attachment of the solar cell module (9) to the area element (3).

7. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to any of the preceding claims, characterized in that two rack units (12a,12b) in such a way that a detachable arrangement of the opposite edges of the solar cell module (9) to the area element (3) is established.

8. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to one of the preceding claims, characterized in that a first rack unit (12a) and a second rack unit (12b) are provided, each with two side parts (16, 17) and a slider (15); a side part (17) of the first rack unit (12a) is present on the solar cell module (9) along a first longitudinal edge of the solar cell module (9) and a side part (17) of the second rack unit (12b) is present on the solar cell module (9) along a second longitudinal edge of the solar cell module (9).

9. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables,according to any of the preceding claims, characterized in that the zipper means (11) comprise a first zipper unit (12a) and a second zipper unit (12b), each with two side parts (16, 17); in the area element (3) there is a side part (16) of the first zipper unit (12a) and in the area element (3), separated from the side part (16) of the first zipper unit (12a), there is a side part (16) of the second zipper unit (12b).

10. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to any of the preceding claims, characterized in that the area element (3) comprises an outer sheet (18, 21) and a support present under the sheet (18, 21), as a mesh element (19).

11. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to one of the preceding claims,characterized in that the solar cell module (9) comprises a flexible support material on which a side portion (17) of a zipper unit (12) is mounted.

12. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to any of the preceding claims, characterized in that a side portion (16, 17) of a zipper unit (12) is sewn, for example, to the area element (3) or to a support material of the solar cell module (9).

13. Agricultural roofing system (1), as a roofing system for crops, fruit trees and / or vegetables according to any of the preceding claims, characterized in that the solar cell module (9) comprises an electrical contact point; the agricultural roofing system (1) has a wiring section that is fixed to a component (5,8a) of the agricultural roofing system (1) and is intended to establish electrical contact with the electrical contact point of the solar cell module (9).

14. Agricultural roofing system (26), as a roofing system for crops, fruit trees and / or vegetables, serving to roof an open-air area (2), such as growing areas for cultivated or useful plants or for other areas of economic use according to any of the preceding claims, characterized in that the device comprises a solar cell module (32) that is connected to a retrofit area element (31, 34); the device is configured as a retrofit assembly for mounting on the agricultural roofing system (26), such that the retrofit area element (31, 34) can be subsequently mounted on an area element of the agricultural roofing system (26).

15. Agricultural roofing system (26), as a roofing system for crops,Fruit trees and / or vegetables according to claim 14, characterized in that the solar cell module (32) is attached to the retrofit area element (31, 34) in a detachable and / or non-detachable manner, for example, by gluing, plastic welding, and / or sewing.

16. Agricultural roofing system (26), as a roofing system for crops, fruit trees, and / or vegetables according to any one of claims 14 and 15, characterized in that the retrofit area element (31, 34) can be attached to the area element of the roofing device in a detachable and / or non-detachable manner, for example, by gluing, plastic welding, and / or sewing.

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