Photovoltaic (PV) power system
A deployable PV power system with modular arrays and easy connection features addresses the environmental and cost issues of using generators at solar farm construction sites by providing sustainable electricity generation.
Patent Information
- Application Number
- PCT/CN2024/085583
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-10-09
AI Technical Summary
Large utility-scale solar farms in remote areas rely on gas or diesel generators for on-site electricity during construction, which is environmentally unfriendly, costly, and requires high maintenance.
A quickly deployable photovoltaic (PV) power system with modular PV arrays, a wiring harness, and a battery system that can be easily unfolded and connected on-site, using wheels and hinges for easy deployment and anchoring to generate and store electricity.
Reduces the need for diesel/gas generators, aligns with clean energy goals, and provides sustainable electricity generation at construction sites.
Smart Images

Figure CN2024085583_09102025_PF_FP_ABST
Abstract
Description
PHOTOVOLTAIC (PV) POWER SYSTEMBACKGROUND
[0001] Large utility-scale solar farms are typically located in remote areas without good electricity infrastructure, but with good sunlight conditions. Currently, when an engineering, procurement, and construction company (EPC) builds a solar farm in such a remote location, they typically use gas or diesel generators to provide on-site office trailers electricity during construction, which can range in duration from weeks to months or even years, depending on the circumstances.
[0002] BRIEF SUMMARY
[0003] Embodiments described herein address these and other issues by providing an easily deployable photovoltaic (PV) power system that can be used to generate and store sufficient electricity to provide for the electrical needs of on-site trailers and / or other equipment at a solar farm construction site. An aspect of the PV power system includes one or more quick-deploy PV arrays that may be easily unfolded on-site. A wiring harness may be prefabricated and may be used to enable a quick electrical connection of the various components of the system: the PV array (s) , battery charger, battery, and inverter. PV panels of the quick-deploy PV arrays may be physically coupled (e.g., to form a row of PV panels along a longitudinal dimension) to allow hinging between the PV panels and accordion folding of the PV array. In some embodiments, support structures of the quick-deploy PV arrays may include wheels, which may be motorized, to facilitate the folding and unfolding of the quick-deploy PV arrays. Components of the PV power system, including folded quick-deploy PV arrays in a battery, may be transported in a shipping container for quick deployment on-site. In some embodiments, the battery may be modularized (e.g., comprise one or more battery modules) to allow easy unloading of the battery, along with the quick-deploy PV arrays from the shipping container. In some embodiments, the battery (and or other components) may remain in the shipping container on-site, while the quick-deploy PV arrays are deployed outside the shipping container. Various other features and embodiments are described herein.
[0004] According to this disclosure, an example PV array may comprise a PV panel assembly that comprises a plurality of PV panels, wherein adjacent edges of PV panels of the plurality of PV panels are coupled to allow hinging of the PV panels, the hinging enabling folding and unfolding of the PV panel assembly along a longitudinal dimension parallel to the ground. The PV array may further comprise a first support structure and a second support structure coupled with the PV panel assembly at a respective first end and second end of the PV panel assembly along the longitudinal dimension. At least a portion of each of the first support structure and the second support structure may be angled with respect to the PV panel assembly to allow the first support structure and the second support structure to support the PV panel assembly above the ground before, during, and after the folding and the unfolding of the PV panel assembly. At least one of the first support structure or the second support structure may include one or more wheels to reduce friction between the at least one of the first support structure or the second support structure and the ground during the folding and unfolding of the PV panel assembly.
[0005] The example PV array may include one or more of the following features. The PV array may further comprise a wiring harness system having electrical connectors configured to electrically connect the PV panels of the plurality of PV panels in series. The wiring harness system may further include electrical connectors configured to electrically connect the PV array with one or more other PV arrays. The wiring harness system may further include electrical connectors configured to electrically connect the PV array with a charge controller configured to charge one or more battery modules from electricity generated by the PV array. The PV array further may be configured to be anchored to the ground when the PV panel assembly is unfolded using: one or more cables coupled to the ground that run through one or more holes in a frame of at least one PV panel of the plurality of PV panels, one or more U-shaped stakes holding the at least one of the first support structure or the second support structure to the ground, or a combination thereof. The PV panels of the plurality of PV panels may be configured to be electrically grounded by one or more cables that run through one or more holes in a frame of at least one PV panel of the plurality of PV panels. The PV array may further comprise one or more support elements coupled with the PV panel assembly, between the first end and the second end of the PV panel assembly along the longitudinal dimension, the one or more support elements also configured to support the PV panel assembly above the ground after the unfolding of the PV panel assembly. The PV array may further comprise at least one motor configured to power the folding of the PV panel assembly, the unfolding of the PV panel assembly, or both.
[0006] According to this disclosure, an example PV power system may include one or more PV arrays. Each PV array may comprise: a PV panel assembly in which adjacent edges of PV panels of the PV panel assembly are connected using hinges to allow accordion folding of the PV panel assembly during folding and unfolding of the PV panel assembly, and a first support structure and a second support structure coupled with the PV panel assembly and configured to support the PV panel assembly above the ground before, during, and after the folding and the unfolding of the PV panel assembly. The PV power system may further comprise a battery, a charge controller configured to charge the battery from electricity generated by the one or more PV arrays, and an inverter configured to convert a direct current (DC) electrical input from the battery to an Alternating Current (AC) electrical output.
[0007] The example PV power system further may comprise one or more of the following features. The PV power system may further comprise a wiring harness system having electrical connectors configured to electrically connect the PV panels of the PV panel assembly of each of the one or more PV arrays to the charge controller. The battery may comprise a plurality of electrically connected battery modules. One or more anchors may secure the one or more PV arrays to the ground. The one or more anchors may comprise a conductive cable configured to provide an electrical ground connection to the PV panels of the PV panel assembly of at least one of the one or more PV arrays while securing the one or more PV arrays to the ground. At least one of the one or more PV arrays may further comprise one or more support elements configured to support the PV panel assembly above the ground after the unfolding of the PV panel assembly. At least one of the one or more PV arrays may further comprise one or more wheels coupled to the first support structure of the at least one of the one or more PV arrays and configured to reduce friction between the first support structure of the at least one of the one or more PV arrays and the ground during the folding and unfolding of the PV panel assembly of the at least one of the one or more PV arrays.
[0008] According to this disclosure, an example method of deploying a PV array may comprise placing a PV array at a deploy site. The PV array may be in a folded configuration and may comprise: a PV panel assembly in which adjacent edges of PV panels of the PV panel assembly are coupled using hinges to allow accordion folding of the PV panel assembly during unfolding of the PV panel assembly along a longitudinal dimension parallel to the ground, and a first support structure and a second support structure coupled with the PV panel assembly at a respective first end and second end of the PV panel assembly along the longitudinal dimension and configured to support the PV panel assembly above the ground before, during, and after the unfolding of the PV panel assembly. The example method may further comprise moving at least the first end of the PV panel assembly to unfold the PV panel assembly along the longitudinal dimension and transition the PV array from the folded configuration to an unfolded configuration.
[0009] The example method may further comprise one or more of the following features. The PV array may further comprise a wiring harness system, and the method may further comprise electrically connecting the PV panels of the PV panel assembly in series using electrical connectors of the wiring harness system. The method may further comprise electrically connecting the PV array with a charge controller using electrical connectors of the wiring harness system, electrically connecting the PV array with one or more other PV arrays using electrical connectors of the wiring harness system, or a combination thereof. The first support structure may comprise at least one wheel, and moving at least the first end of the PV panel assembly may comprise rolling the first support structure on the at least one wheel along the longitudinal dimension. The PV array may further comprise at least one motor configured to power at least one wheel, and rolling the first support structure on the at least one wheel may comprise activating the at least one motor.
[0010] This summary is neither intended to identify key or essential features of the claimed subject matter nor is it intended to be used in isolation to determine the scope of the claimed subject matter. The subject matter should be understood by reference to appropriate portions of the entire specification of this disclosure, any or all drawings, and each claim. The foregoing, together with other features and examples, will be described in more detail below in the following specification, claims, and accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a simplified illustration of an example quick-deploy photovoltaic (PV) power system, according to some embodiments.
[0012] FIG. 2 is an illustration of a perspective view of a portion of a PV panel array system, according to an embodiment.
[0013] FIGS. 3A-3C are illustrations of a profile view of a quick-deploy PV array 155 at different states of folding / unfolding.
[0014] FIGS. 4A and 4B are illustrations of a profile view of a quick-deploy PV array showing an example technique for mitigating motion of quick-deploy PV arrays in which U-shaped stakes are used.
[0015] FIG. 5 is an illustration of how quick-deploy PV arrays may be electrically connected, according to an embodiment.
[0016] FIG. 6 is an illustration of a profile view of two different examples of how support elements may be used in quick-deploy PV arrays, according to some embodiments.
[0017] FIG. 7 is an illustration of a profile view of a quick-deploy PV array in a folded configuration, illustrating how support elements may be situated when the quick-deploy PV array is in a folded configuration, according to an embodiment.
[0018] FIG. 8 is a flow diagram of an example method 800 of deploying a quick-deploy PV array according to an embodiment.
[0019] Like reference symbols in the various drawings indicate like elements, in accordance with certain example implementations. In addition, multiple instances of an element may be indicated by following a first number for the element with a letter or a hyphen and a second number. For example, multiple instances of an element 110 may be indicated as 110-1, 110-2, 110-3 etc., or as 110a, 110b, 110c, etc. When referring to such an element using only the first number, any instance of the element is to be understood (e.g., element 110 in the previous example would refer to elements 110-1, 110-2, and 110-3 or to elements 110a, 110b, and 110c) . Drawings are simplified for discussion purposes and may not reflect certain features of embodiments (e.g., sizes / dimensions, components, etc. ) used in real-world applications.DETAILED DESCRIPTION
[0020] The following description is directed to certain implementations to describe innovative aspects of various embodiments. However, a person having ordinary skill in the art will readily recognize that the teachings herein can be applied in a multitude of different ways. The described implementations may be implemented in various contexts, including construction sites that do not involve solar construction, as well as other industrial, commercial, military, or residential use cases, to name only a few.
[0021] It will be apparent to those skilled in the art that substantial variations may be made in accordance with specific requirements. For example, although specific materials, elements, configurations, and / or other aspects of the embodiments described herein may be described, a person of ordinary skill in the art will appreciate that alternative materials, elements, etc. may be used. Such variations from the embodiments described herein may be based on a variety of factors, including worksite requirements, budgetary requirements, manufacturing limitations, or the like.
[0022] As noted, when an engineering, procurement, and construction company (EPC) builds a solar farm in such a remote location, they typically use gas or diesel generators to provide on-site office trailers electricity during construction, which can last many months or even years. This is not environmentally friendly, at odds with the clean energy goals of the solar farm under construction, and may be costly given gas / diesel prices. Further, it can be relatively high maintenance, requiring refueling and an on-site crewmember to start and stop the generators at the beginning and end of the workdays.
[0023] Embodiments described herein provide for an easily deployable photovoltaic (PV) power system that can be used to generate and store sufficient electricity to provide for the electrical needs of on-site trailers and / or other equipment at a construction site. The embodiments herein may be particularly well-suited for deployment at a solar farm construction site, where conditions are favorable for solar power generation, and where electricity otherwise is not easily accessible and may need to be produced using a generator. By providing a complete PV power system that may be shipped in a container and easily deployed on-site, embodiments can help further the goal of reducing greenhouse emissions by reducing the need for diesel / gas generators used to generate alternating current (AC) electricity at construction sites without requiring the large amount of resources it would otherwise take to deploy such a PV power system. These and other benefits will be apparent to a person of ordinary skill in the art in view of the embodiments described herein below.
[0024] FIG. 1 is a simplified illustration of an example quick-deploy PV power system 100, according to some embodiments. (Such a quick-deploy PV power system also may be referred to herein simply as a “PV power system. ” ) As illustrated, the quick-deploy PV power system comprises a PV panel array system 110, charge controller 115, battery 120, inverter 125, and AC load 130. The arrows in FIG. 1 are meant to represent electrical connections. As with all figures appended hereto, FIG. 1 is provided as a nonlimiting example. A person of ordinary skill in the art will appreciate how, in alternative embodiments of a quick-deploy PV power system 100, variations may occur, such as the rearranging, adding, and / or omission of components.
[0025] The general operation of the quick-deploy PV power system 100 may be described as follows. The PV panel array system 110 provides a DC solar output 135 to the charge controller 115. The charge controller 115 uses the direct current (DC) solar output 135 to then provide a DC charge output 140 to charge the battery 120. In doing so, the charge controller 115 can use voltage regulation and / or other means to execute one or more charging stages for charging the battery 120 when the DC solar output 135 received by the charge controller 115 is sufficient and when the battery 120 has capacity to be charged. Depending on desired functionality, the charge controller 115 can account for temperatures, charge states, and / or other factors when charging the battery 120, to lengthen battery life, increase charting efficiency, etc. The battery 120 can then be used to provide a DC battery output 145 to the inverter 125, which converts the DC battery output 145 to an AC output 150, to power an AC load 130. (Although illustrated as a construction trailer, the AC load 130 may comprise one or more of various types of buildings, equipment, tools, or other items that may be powered using the AC output 150. ) According to some embodiments, the AC output 150 may include a breaker box for surge protection to one or more circuits electrically connected thereto. According to some embodiments, the AC output 150 may include different voltages (e.g., 110 V, 220 V, etc. ) , cycle frequencies, connectors, etc., to accommodate the needs of different types of AC loads 130.
[0026] As illustrated, certain components of the quick-deploy PV power system 100 may be modularized. In particular, the PV panel array system 110 may comprise a plurality of quick-deploy PV arrays 155, and / or the battery 120 may comprise a plurality of battery modules 160, depending on observed functionality. The quick-deploy PV arrays 155 and / or battery modules 160 may be electrically connected in series and / or parallel, as needed to provide an amperage and / or voltage desired for the DC solar output 135 and / or DC battery output 145, respectively. According to some embodiments, the quick-deploy PV power system 100 may comprise one or more wiring harnesses to enable quick electrical connection of quick-deploy PV arrays 155 and / or battery modules 160.
[0027] The modularization of the PV panel array system 110 and / or battery 120 in this way may facilitate deployment of the quick-deploy PV power system 100 on-site. As noted, some or all of the components in the quick-deploy PV power system 100 may be packaged in a container (e.g., a 20-foot container or 40-foot container) for shipping, and having modularized components such as quick-deploy PV arrays 155 and / or battery modules 160 can facilitate the respective unloading of the PV panel array system 110 and / or battery 120 and deployment on-site. Further, modules may be distributed within a shipping container to facilitate loading / unloading, and may be distributed in view of weight distribution requirements or guidelines. According to some embodiments, certain components of the PV panel array system 110 (e.g., battery 120, charge controller 115, and / or inverter 125) may remain in a container at the deployment site to provide additional protection for these components against the elements. As such, these components may be disposed or placed within the shipping container in a manner to facilitate electrical connection of these components with the PV panel array system 110 and AC load 130.
[0028] The size and output of the quick-deploy PV power system 100 may vary, depending on desired functionality. According to some embodiments, the battery 120 may provide between 200 kWh and 2000 kWh of storage. The PV panel array system 110 may be capable of providing between 50 kW and 500 kW of maximum power. Alternative embodiments may have power storage and / or generation capabilities outside of these example ranges.
[0029] FIG. 2 is a perspective view of a portion of a PV panel array system 110, according to an embodiment. Here, the PV panel array system 110 includes two quick-deploy PV arrays 155 (acomplete view of a first quick-deploy PV array 155-1, and a partial view of the second quick-deploy PV array 155-2, which may correspond with two of the quick-deploy PV arrays 155 of FIG. 1) . The PV panel array system 110 may include additional quick-deploy PV arrays 155 (not shown) . To avoid clutter, some aspects of the quick-deploy PV arrays 155, such as the wiring harness system, are not shown in FIG. 2 but will be discussed below. As illustrated, each quick-deploy PV array 155 may include various components that can help facilitate the quick deployment of each quick-deploy PV array 155, and the PV panel array system 110 and overall quick-deploy PV power system 100 of which it may be a part. Further, in some implementations, quick-deploy PV arrays 155 may be deployed end to end, as illustrated in FIG. 2 and FIG. 1
[0030] The PV panel assembly 210 may comprise multiple PV panels 220 connected to form a row along a longitudinal dimension 230 that is parallel to the ground on which the quick-deploy PV array 155 is deployed. Adjacent edges of the PV panels 220 may be connected via hinges 240 to allow hinging between PV panels 220, enabling accordion folding of the PV assembly 210, as illustrated in FIGS. 3A-3C, described in more detail below.
[0031] As referred to herein, the term “accordion folding” of a PV panel assembly 210 is intended to describe how consecutive hinges 240 (e.g., a first hinge and second hinge (not labeled in FIG. 2) along the longitudinal dimension 230) have opposing opening directions (i.e., first hinge opens toward the ground, second hinge open toward the sky) . As an example, when the PV panel assembly 210 is folded, the first hinge is closed and positioned closer to the sky, and the second hinge is closed and positioned closer to the ground. As the PV panel assembly 210 unfolds, the first hinge moves toward a middle position (moving downward in the vertical dimension 270) and opens, and the second position also moves toward the middle position (moving upward in the vertical dimension 270) and opens. Thus, the first and second hinges experience translational movement along the vertical dimension 270. The first and second hinges also experience translational movement along the longitudinal dimension 230, as result of the individual PV panels 220 being pushed further apart when the PV panel assembly 210 is being unfolded. The first and second hinges may not experience any rotational movement during folding and unfolding of the PV panel assembly 210 (i.e., first hinge always opens / closes toward the ground, second hinge opens / closes toward the sky) . This example, which is meant to describe “accordion folding” in detail, echoes the types of accordion folding illustrated, for example, in FIGS. 3A-3C and 7.
[0032] Depending on desired functionality, the number and type of hinges 240 used to couple adjacent PV panels 220 may vary. The use of multiple hinges may, for example, add stability to help mitigate possible twisting between panels. (The second quick-deploy PV array 155-2 in FIG. 2 shows an example of a two-hinge embodiment. ) The use of more than one hinge 240 between adjacent PV panels 220 may allow for the use of smaller hinges 240 while maintaining structural robustness, which may offset additional costs that may be incurred by the increase in the number of hinges 240 in a PV panel assembly 210. Such cost considerations, manufacturing concerns, and / or other factors may be taken into account when determining the number and type of hinges 240 to use for a given embodiment and / or application.
[0033] As a person of ordinary skill in the art will appreciate, the types of panels used may vary depending on desired functionality. According to some embodiments, each PV panel 220 may be capable of generating between 50 W and 500 W, for example. Thus, a solar system providing 1500 V may electrically connect to 30 PV panels 220 in series. Multiple strings of PV panels may be connected in parallel to increase the amperage of the DC output (e.g., DC solar output 135 of FIG. 1) . The size of panels, too, may vary depending on the application. In some applications, for example, panels may be approximately 6 feet x 4 feet, although alternative embodiments may have larger or smaller PV panels 220.
[0034] Although not shown in detail, PV panels 220 may comprise various components to help ensure structural integrity during shipment and after deployment. For example, in addition to having a PV module that comprises an array of PV cells and supporting circuitry to generate the DC output from solar light, each PV panel 220 may further comprise a transparent protective layer (e.g., tempered glass) , one or more layers of encapsulated material (e.g., ethylene vinyl acetate (EVA) , and insulating backsheet. Each PV panel 220 may further comprise a frame made from a strong material (e.g., anodized aluminum, stainless steel, etc. ) or structural support. According to some embodiments, the frame may comprise circular or rectangular tubing that runs along the perimeter of each PV panel 220, or on the back of each PV panel 220 (opposite the surface of the PV panel 220 having the PV cells) near the perimeter. Such panels may be of proprietary construction or may be commercial-off-the-shelf (COTS) PV panels. For example, TRINASOLAR, headquartered in China, produces such PV panels. As noted elsewhere herein, according to some embodiments, the frame may provide electrical grounding to the PV panel. In such embodiments, an uninsulated conductive cable may run through holes in the frames of PV panels 220 and may be anchored to the ground. This may provide anchoring of a quick-deploy PV array 155, as well as provide an (e.g., additional) electrical connection to the ground of each of the PV panels 220. PV panels 220 may include support leaves 245 to which support structures 250 and / or hinges 240 may be attached (e.g., via welds, bolts, etc. ) .
[0035] Support structures 250 may be located at each end of the quick-deploy PV array 155 (e.g., along the longitudinal dimension 230) . To facilitate deployment, support structures 250 at one or both ends may include one or more wheels 260 that may reduce friction between the support structure 250 and the ground as the PV panel assembly 210 of the quick-deploy PV array 155 is folded or unfolded along one or both directions of the longitudinal dimension 230. Deploying a quick-deploy PV array 155 will involve unfolding its PV panel assembly 210 such that it looks like the quick-deploy PV array 155-1 of FIG. 2, in which its respective PV panel assembly 210 is unfolded, and PV panels are facing upward toward the sun and the PV panel assembly 210 is supported above the ground on either side along the longitudinal dimension 230 by support structures 250. According to some embodiments, the legs 255 of each support structure may have different lengths and / or may be independently extendable to allow for angling of the PV panels 220 toward the sun, which can increase the solar power generation of the quick-deploy PV array 155. Support structures 250 generally may be made from strong materials to support the weight of the PV panel assembly 210. This may include materials similar to those of the frames of the PV panels 220 (e.g., anodized aluminum or stainless steel) . Matching materials between support structures 250 and the frames or support leaves 245 of the PV panels 220 may facilitate welding of the support structures 250 to the frames or support leaves 245.
[0036] According to some embodiments, at least one of the one or more wheels 260 may be motorized (e.g., by at least one motor coupled therewith) to facilitate the holding and / or unfolding of the PV panel assembly 210 of the quick-deploy PV array 155. The determination of whether to motorize the wheel (s) may be based on factors such as size and / or weight of the quick-deploy PV array 155, the expected ruggedness of the terrain, and / or other such factors. In such embodiments, motors may comprise electric motors (e.g., located in wheel hubs, directly driving the wheel (s) , or the like) , and the quick-deploy PV array 155 may include one or more batteries to power the electric motors. According to some embodiments, these batteries may be recharged by the quick-deploy PV array 155, once deployed.
[0037] Depending on desired functionality, one or more motors may be used to fold and / or unfold the PV panel assembly 210 of the quick-deploy PV array 155, in addition or as an alternative to motorizing one or more wheels. For example, one or more motors might drive gears, arms, pulleys, winches, or other non-wheel parts to unfold the PV panel assembly 210. In some embodiments, for example, a motor may tighten a cable fed through holes in the frames of PV panels 220 to unfold the PV panel assembly 210. In this case, hinges 240 may be spring-loaded to retract to a folded position when the cable is loosened. Additional or alternative techniques for incorporating a motor to automate some or all of the folding or unfolding of the PV panel assembly 210 maybe used.
[0038] In addition or as an alternative to wheels, the support structures in some embodiments may include alternative types of friction-reducing elements. This may include elements such as sleds or skis, which may be selected based on the terrain of the deployment site. Sleds, skis, or a similar low-friction member may be preferable, for example, when the terrain includes sand or snow.
[0039] According to some embodiments, support structures 250 may be angled with respect to both the longitudinal dimension 230 and the vertical dimension 270. This can allow the support structure 250 to support the quick-deploy PV array 155 in both folded and unfolded configurations. Additional details are provided below with respect to FIGS. 3A-3C.
[0040] Alternative embodiments may employ support structure (s) additional to or alternative of support structures 250. Some embodiments may, for example, use support structures having large wheels capable of giving the PV panel assembly 210 sufficient ground clearance (e.g., in the vertical dimension 270) . Such wheels may be attached to an axle that may or may not be angled, and wheels may extend to the side of PV panels 220 (e.g., in a lateral dimension 280) to provide clearance between the wheels and the PV panels 220, including during folding and unfolding of the PV panel assembly 210. Additionally or alternatively, support structures 250 may include lockable, liftable, and / or removable wheels, and / or other structures or members, allowing wheels to movably engage with the ground at desired times (e.g. when a quick-deploy PV array 155 is being moved) and not at others (e.g., when a quick-deploy PV array 155 is deployed) .
[0041] FIGS. 3A-3C shows a profile view of a quick-deploy PV array 155 at different states of folding / unfolding. FIG. 3A illustrates a folded configuration of the quick-deploy PV array 155 in which the PV panel assembly (not labeled in FIG. 3A) of the quick-deploy PV array 155 is fully folded. FIG. 3B illustrates the quick-deploy PV array 155 in an intermediate state of being unfolded, and FIG. 3C illustrates an unfolded configuration. As the sequence of FIGS. 3A-3C suggests the quick-deploy PV array 155 may be unfolded when one end of the quick-deploy PV array 155 is extended in the deployment direction 310 (along the longitudinal dimension 230 shown in FIG. 2, away from the other end) . Additionally or alternatively, the quick-deploy PV array 155 may be unfolded by opposite ends of the quick-deploy PV array 155 in opposite directions (e.g., the end on the right side of FIG. 3A in the deployment direction 310, and the other end (on the left side) in the opposite direction) . Folding of the quick-deploy PV array 155 may be performed by retracting one or both ends of the quick-deploy PV array 155 in the opposite direction (s) .
[0042] As illustrated in FIG. 3A and previously noted, an angle 320 may exist between the support structures and the PV panels of the PV panel assembly to which they are coupled, such that the support structures provide support before, during, and after holding and unfolding. Although illustrated as approximately 45° in FIGS. 3A-3C, angle 320 may vary, depending on desired functionality. A steeper angle may provide more clearance when unfolded and less clearance when unfolded, whereas a shallower angle may provide the opposite: more clearance when folded than unfolded. A steeper angle may additionally impact how compact the quick-deploy PV array 155 may be when folded. These and / or other factors may be considered in the determination of angle 320.
[0043] Quick-deploy PV arrays may be subject to motion after deployment, due to wind, slope, etc., which differ in each deployment scenario. Motion may especially be a potential issue for embodiments utilizing wheels, such as those shown in the figures. As such, embodiments may employ one or more techniques mitigating motion. This can include using wheel brakes, staking or tethering components of the quick-deploy PV arrays to the ground, and / or other techniques.
[0044] FIGS. 4A and 4B illustrate a technique for mitigating motion of quick-deploy PV arrays in which U-shaped stakes are used. More specifically, U-shaped stakes are placed over portions of the support structures 250 of each quick-deploy PV array, as illustrated in FIG. 4A. The stakes are then driven into the ground to hold the quick-deploy PV arrays 155 to the ground, as illustrated in FIG. 4B.
[0045] Another technique for mitigation motion of quick-deploy PV arrays 155 may involve feeding one or more steel cables through one or more holes in PV panel frames of the quick-deploy PV arrays 155 and staking the one or more steel cables to the ground or otherwise securing the cable (s) . This technique may not only may help mitigate motion but may also provide an electrical ground to the PV panels secured by the steel cable (s) . (In such embodiments, the electrical ground of the circuitry of each PV panel may be electrically connected to a metal frame (e.g., steel or aluminum) of the PV panel. ) Alternative embodiments may utilize cables, cords, or ropes made from other materials. To provide electrical grounding, these materials may be conductive and may be uninsulated.
[0046] As noted previously, a quick-deploy PV power system 100 may further include a wiring harness system to facilitate the electrical connecting of the various components of the quick-deploy PV power system. In reference to components of the quick-deploy PV power system 100 illustrated in FIG. 1, the wiring harness system may, for example, electrically connect each of the PV panels of a quick-deploy PV array 155 in series and / or parallel, and may further be adapted to electrically connect multiple quick-deploy PV arrays 155 in series and / or in parallel in a manner to supply a charge controller 115 with a sufficient DC solar output 135 (e.g., sufficient voltage and / or amperage) to enable the charge controller 115 to charge the battery 120. As such, the wiring harness system may include various cables, connectors, T / X / Y junctions / overmolds, terminals, in-line fuses (e.g., 2 amps to 60 A) ) , jumpers / webs, etc. to provide such electrical connection. The various cables, connectors, terminals, etc. may be weatherproofed to help maintain electrical connections while protecting them from the elements. Further, embodiments may include action male / female connectors or the like to help ensure the various components of the wiring harness system are connected correctly. In some embodiments, a wiring harness may include 2 kV photovoltaic copper wire. Example gauges that may be used (in American wire gauge (AWG) ratings) include 6, 8, 10, and / or 12 AWG. According to some embodiments, components of the wiring harness system may conform to various applicable standards, such as Underwriters Laboratories (UL) standard 9703, Canadian Standards Association (CAN / CSA) Std. C22.2 #182.5 (Photovoltaic Connectors) , CAN / CSA Std. C22.2 #271 (Photovoltaic Cables) , CAN / CSA Std. C22.2 #198.2 (Sealed Wire Connector Systems) , etc.
[0047] For example, scenario 500 of FIG. 5 illustrates how quick-deploy PV arrays 155 may be electrically connected. In this scenario, the wiring harness system includes a pair of cables 510 of different cable types (e.g., a positive and negative) for each of the quick-deploy PV arrays 155, which are connected in the manner shown in FIG. 5 to electrically connect the quick-deploy PV arrays 155. To ensure correct electrical connection, embodiments may make it so that only connector pairs 520 that should be connected can be connected. For example, each type of cable may utilize different types of connectors. Alternatively, the output of one cable type (e.g., positive) may be a male connection and the output of the other cable type (e.g., negative) may be a female connection, which may then require connecting to respective female and male connectors of the cable pair 510.
[0048] A wiring harness system may include other aspects to help facilitate easy deployment of a quick-deploy PV power system 100. According to some embodiments, the wiring harness system may be coupled with the quick-deploy PV arrays 155 before shipping. In such embodiments, the PV panels of each quick-deploy PV array 155 already may be electrically connected, and connecting adjacent quick-deploy PV arrays 155 may simply involve connecting cable pairs 510 in the manner illustrated in FIG. 5. According to some embodiments, a wiring harness system may be coupled with the quick-deploy PV arrays 155 after shipping, during deployment of the quick-deploy PV power system 100. In such embodiments, the wiring harness system may be shipped on one or more cable reels, which may be unreeled on-site (e.g., next to the quick-deploy PV array (s) 155) and used to electrically connect the quick-deploy PV arrays 155. In such embodiments, each of the quick-deploy PV arrays 155 may include clips and / or other restraints to enable the physical coupling of various components (e.g., cables, connectors, etc. ) of the wiring harness system to the quick-deploy PV arrays 155 so that the wiring harness system is elevated above the ground (e.g., on the underside of the quick-deploy PV arrays 155, in the manner shown in FIG. 5) .
[0049] According to some embodiments, a quick-deploy PV array 155 may include one or more support elements in addition to the support structures 250 at either end of the quick-deploy PV array 155. This can be done, for example, or quick-deploy PV arrays 155 exceeding a certain number of PV panels such that they may need additional support element at one or more locations along the PV panel assembly. Examples of such support elements are illustrated in FIG. 6.
[0050] FIG. 6 is a profile view of two different examples of how support elements may be used in quick-deploy PV arrays 155. In a first example, a first quick-deploy PV array 155-a includes a stationary support element 610. In a second example, a second quick-deploy PV array 155-b includes a mobile support element 620. (The profile view in FIG. 6 shows only one side of the quick-deploy PV arrays 155-a and 155-b. It can be noted that support elements similarly may be coupled to the other side of these arrays. Thus, each of the support elements 610, 620 shown in FIG. 6 may represent a pair of support elements coupled to either side of the respective quick-deploy PV arrays 155. ) Support elements of either type may be used, depending on desired functionality. In addition to providing support element, stationary support elements 610 may be used, for example, to help immobilize the quick-deploy PV array 155-a once unfolded, whereas moving support elements 620 may facilitate additional moving of the quick-deploy PV array 155-b once unfolded (e.g., to a preferred location at the deployment site) , which may be prior to immobilizing or anchoring the quick-deploy PV array 155-b, e.g., in the manner described above.
[0051] The size and location of the support elements 610, 620 may vary, depending on factors such as the weight of the PV panels, material composition of the PV panels (including PV panel frames and / or other structural components of the PV panels) , or the like. According to some embodiments, the support elements 610, 620 may be coupled to the side of the PV panels of the PV panels to allow the quick-deploy PV arrays 155 to fold and unfold.
[0052] FIG. 7 is a profile view of a quick-deploy PV array 155-c in a folded configuration, illustrating how support elements 710 may be situated when the quick-deploy PV array 155-c is in a folded configuration, according to an embodiment. Here, the quick-deploy PV array 155-C comprises 30 PV panels (only a small portion of which are labeled, to avoid clutter) , and stationary support elements are coupled to every sixth panel.
[0053] Of course, alternative embodiments may vary from the example shown in FIG. 7. Although stationary support elements 710 are illustrated in FIG. 7, alternative embodiments may include moving support elements, or a combination thereof. Some embodiments may include support elements 710 more frequently (e.g., every panel, or every 2, 3, 4, or 5 panels) or less frequently (e.g., every 7, 8, 9, or 10+ panels) within the row of PV panels of the quick-deploy PV array 155-c. In some embodiments, moving support elements may be located at the bottom of a quick-deploy PV array 155-c to provide support element while the quick-deploy PV array 155 is in a folded configuration. In some embodiments, support elements 710 may be foldable, allowing them to fold or hinge, for example, between PV panels 220 when the quick-deploy PV array 155-c is in a folded configuration.
[0054] FIG. 8 is a flow diagram of an example method 800 of deploying a quick-deploy PV array according to an embodiment. The array may comprise a quick-deploy PV array 155 as described herein and illustrated in FIGS. 1-7 and may be part of a larger quick-deploy PV power system 100, as illustrated in FIG. 1 and described above. The method may further be carried out by one or more workers at the cited deployment of the quick-deploy PV array.
[0055] The method 800 may begin with the functionality at block 810, which comprises disposing a quick-deploy PV array at a deploy site (e.g., near a construction office trailer) , the quick-deploy PV array in a folded configuration and comprising (i) a PV panel assembly in which adjacent edges of PV panels of the PV panel assembly are connected using hinges to allow accordion folding of the PV panel assembly during unfolding of the PV panel assembly along a longitudinal dimension parallel to the ground; and (ii) a first support structure and a second support structure coupled with the PV panel assembly at a respective first end and second end of the PV panel assembly along the longitudinal dimension and configured to support the PV panel assembly above the ground before, during, and after the unfolding of the PV panel assembly. Details regarding the PV panel assembly and first and second support structures may be found in the embodiments described above, for example, with respect to FIG. 2.
[0056] The method 800 may then continue with the functionality at block 820, comprising moving at least the first end of the PV panel assembly to unfold the PV panel assembly along the longitudinal dimension and transition the quick-deploy PV array from the folded configuration to an unfolded configuration. As noted in the embodiments above, a PV panel assembly of a quick-deploy PV array may be unfolded by moving one of the support structures along the longitudinal dimension in a direction away from the other support structure, or by moving both support structures in opposite directions along the longitudinal dimension. According to some embodiments, the first support structure may comprise at least one wheel, and moving at least the first end of the PV panel assembly may comprise rolling the first support structure on the at least one wheel along the longitudinal dimension. In such embodiments, quick-deploy PV array may further comprise at least one motor configured to power at least one wheel and wherein rolling the first support structure on the at least one wheel may comprise activating the at least one motor.
[0057] As noted, a quick-deploy PV array may include a variety of other features, according to some embodiments. For example, according to some embodiments, the quick-deploy PV array may further comprise a wiring harness system, in which case the method 800 may further comprise electrically connecting the PV panels of the plurality of PV panels in series using electrical connectors of the wiring harness system. As noted previously, the wiring harness system may be pre-attached to the quick-deploy PV array (e.g., prior to shipping) , or may be ship separate from the quick-deploy PV array and attached upon deployment of the quick-deploy PV array. Some embodiments of the method 800 may further include electrically connecting the quick-deploy PV array with a charge controller using electrical connectors of the wiring harness system, electrically connecting the quick-deploy PV array with one or more other quick-deploy PV arrays using electrical connectors of the wiring harness system, or a combination thereof.
[0058] The methods, systems, and devices discussed herein are examples. Various embodiments may omit, substitute, or add various procedures or components as appropriate. For instance, features described with respect to certain embodiments may be combined in various other embodiments. Different aspects and elements of the embodiments may be combined in a similar manner. The various components of the figures provided herein can be embodied in hardware and / or software. Also, technology evolves and, thus many of the elements are examples that do not limit the scope of the disclosure to those specific examples.
[0059] It has proven convenient at times, principally for reasons of common usage, to refer to such signals as bits, information, values, elements, symbols, characters, variables, terms, numbers, numerals, or the like. It should be understood, however, that all of these or similar terms are to be associated with appropriate physical quantities and are merely convenient labels. Unless specifically stated otherwise, as is apparent from the discussion above, it is appreciated that throughout this Specification discussion utilizing terms such as “processing, ” “computing, ” “calculating, ” “determining, ” “ascertaining, ” “identifying, ” “associating, ” “measuring, ” “performing, ” or the like refer to actions or processes of a specific apparatus, such as a special purpose computer or a similar special purpose electronic computing device. In the context of this Specification, therefore, a special purpose computer or a similar special purpose electronic computing device is capable of manipulating or transforming signals, typically represented as physical electronic, electrical, or magnetic quantities within memories, registers, or other information storage devices, transmission devices, or display devices of the special purpose computer or similar special purpose electronic computing device.
[0060] Terms, “and” and “or” as used herein, may include a variety of meanings that also is expected to depend, at least in part, upon the context in which such terms are used. Typically, “or” if used to associate a list, such as A, B, or C, is intended to mean A, B, and C, here used in the inclusive sense, as well as A, B, or C, here used in the exclusive sense. In addition, the term “one or more” as used herein may be used to describe any feature, structure, or characteristic in the singular or may be used to describe some combination of features, structures, or characteristics. However, it should be noted that this is merely an illustrative example and claimed subject matter is not limited to this example. Furthermore, the term “at least one of” if used to associate a list, such as A, B, or C, can be interpreted to mean any combination of A, B, and / or C, such as A, AB, AA, AAB, AABBCCC, etc.
[0061] Having described several embodiments, various modifications, alternative constructions, and equivalents may be used without departing from the scope of the disclosure. For example, the above elements may merely be a component of a larger system, wherein other rules may take precedence over or otherwise modify the application of the various embodiments. Also, a number of steps may be undertaken before, during, or after the above elements are considered. Accordingly, the above description does not limit the scope of the disclosure.
[0062] In view of this description embodiments may include different combinations of features. Implementation examples are described in the following numbered clauses:
[0063] Clause 1: A photovoltaic (PV) array comprising: a PV panel assembly that comprises a plurality of PV panels, wherein adjacent edges of PV panels of the plurality of PV panels are coupled to allow hinging of the PV panels, the hinging enabling folding and unfolding of the PV panel assembly along a longitudinal dimension parallel to the ground; and a first support structure and a second support structure coupled with the PV panel assembly at a respective first end and second end of the PV panel assembly along the longitudinal dimension, wherein: at least a portion of each of the first support structure and the second support structure is angled with respect to the PV panel assembly to allow the first support structure and the second support structure to support the PV panel assembly above the ground before, during, and after the folding and the unfolding of the PV panel assembly, and at least one of the first support structure or the second support structure includes one or more wheels to reduce friction between the at least one of the first support structure or the second support structure and the ground during the folding and unfolding of the PV panel assembly.
[0064] Clause 2: The PV array of clause 1, further comprising a wiring harness system having electrical connectors configured to electrically connect the PV panels of the plurality of PV panels in series.
[0065] Clause 3: The PV array of clause 2, wherein the wiring harness system further includes electrical connectors configured to electrically connect the PV array with one or more other PV arrays.
[0066] Clause 4: The PV array of any one of clauses 2-3, wherein the wiring harness system further includes electrical connectors configured to electrically connect the PV array with a charge controller configured to charge one or more battery modules from electricity generated by the PV array.
[0067] Clause 5: The PV array of any one of clauses 1-4, wherein the PV array is further configured to be anchored to the ground when the PV panel assembly is unfolded using: one or more cables coupled to the ground that run through one or more holes in a frame of at least one PV panel of the plurality of PV panels, one or more U-shaped stakes holding the at least one of the first support structure or the second support structure to the ground, or a combination thereof.
[0068] Clause 6: The PV array of any one of clauses 1-5, wherein the PV panels of the plurality of PV panels are configured to be electrically grounded by one or more cables that run through one or more holes in a frame of at least one PV panel of the plurality of PV panels.
[0069] Clause 7: The PV array of any one of clauses 1-6, further comprising one or more support elements coupled with the PV panel assembly, between the first end and the second end of the PV panel assembly along the longitudinal dimension, the one or more support elements also configured to support the PV panel assembly above the ground after the unfolding of the PV panel assembly.
[0070] Clause 8: The PV array of any one of clauses 1-7, further comprising at least one motor configured to power the folding of the PV panel assembly, the unfolding of the PV panel assembly, or both.
[0071] Clause 9: A photovoltaic (PV) power system comprising: one or more PV arrays, wherein each PV array comprises: a PV panel assembly in which adjacent edges of PV panels of the PV panel assembly are connected using hinges to allow accordion folding of the PV panel assembly during folding and unfolding of the PV panel assembly; and a first support structure and a second support structure coupled with the PV panel assembly and configured to support the PV panel assembly above the ground before, during, and after the folding and the unfolding of the PV panel assembly; a battery; a charge controller configured to charge the battery from electricity generated by the one or more PV arrays; and an inverter configured to convert a direct current (DC) electrical input from the battery to an Alternating Current (AC) electrical output.
[0072] Clause 10: The PV power system of clause 9, further comprising a wiring harness system having electrical connectors configured to electrically connect the PV panels of the PV panel assembly of each of the one or more PV arrays to the charge controller.
[0073] Clause 11: The PV power system of either of clauses 9 or 10, wherein the battery comprises a plurality of electrically connected battery modules.
[0074] Clause 12: The PV power system of any one of clauses 9-11, further comprising one or more anchors to secure the one or more PV arrays to the ground.
[0075] Clause 13: The PV power system of clause 12, wherein one or more anchors comprises a conductive cable configured to provide an electrical ground connection to the PV panels of the PV panel assembly of at least one of the one or more PV arrays while securing the one or more PV arrays to the ground.
[0076] Clause 14: The PV power system of any one of clauses 12-13, wherein at least one of the one or more PV arrays further comprises one or more support elements configured to support the PV panel assembly above the ground after the unfolding of the PV panel assembly.
[0077] Clause 15: The PV power system of any one of clauses 12-14, wherein at least one of the one or more PV arrays further comprises one or more wheels coupled to the first support structure of the at least one of the one or more PV arrays and configured to reduce friction between the first support structure of the at least one of the one or more PV arrays and the ground during the folding and unfolding of the PV panel assembly of the at least one of the one or more PV arrays.
[0078] Clause 16: A method of deploying a photovoltaic (PV) array, the method comprising: placing a PV array at a deploy site, the PV array in a folded configuration and comprising: a PV panel assembly in which adjacent edges of PV panels of the PV panel assembly are coupled using hinges to allow accordion folding of the PV panel assembly during unfolding of the PV panel assembly along a longitudinal dimension parallel to the ground; and a first support structure and a second support structure coupled with the PV panel assembly at a respective first end and second end of the PV panel assembly along the longitudinal dimension and configured to support the PV panel assembly above the ground before, during, and after the unfolding of the PV panel assembly; and moving at least the first end of the PV panel assembly to unfold the PV panel assembly along the longitudinal dimension and transition the PV array from the folded configuration to an unfolded configuration.
[0079] Clause 17: The method of clause 16, wherein the PV array further comprises a wiring harness system, and the method further comprises electrically connecting the PV panels of the PV panel assembly in series using electrical connectors of the wiring harness system.
[0080] Clause 18: The method of clause 17, further comprising: electrically connecting the PV array with a charge controller using electrical connectors of the wiring harness system, electrically connecting the PV array with one or more other PV arrays using electrical connectors of the wiring harness system, or a combination thereof.
[0081] Clause 19: The method of any one of clauses 16-18, wherein the first support structure comprises at least one wheel, and wherein moving at least the first end of the PV panel assembly comprises rolling the first support structure on the at least one wheel along the longitudinal dimension.
[0082] Clause 20: The method of clause 19, wherein the PV array further comprises at least one motor configured to power at least one wheel and wherein rolling the first support structure on the at least one wheel comprises activating the at least one motor.
Claims
1.A photovoltaic (PV) array comprising:a PV panel assembly that comprises a plurality of PV panels, wherein adjacent edges of PV panels of the plurality of PV panels are coupled to allow hinging of the PV panels, the hinging enabling folding and unfolding of the PV panel assembly along a longitudinal dimension parallel to the ground; anda first support structure and a second support structure coupled with the PV panel assembly at a respective first end and second end of the PV panel assembly along the longitudinal dimension, wherein:at least a portion of each of the first support structure and the second support structure is angled with respect to the PV panel assembly to allow the first support structure and the second support structure to support the PV panel assembly above the ground before, during, and after the folding and the unfolding of the PV panel assembly, andat least one of the first support structure or the second support structure includes one or more wheels to reduce friction between the at least one of the first support structure or the second support structure and the ground during the folding and unfolding of the PV panel assembly.2.The PV array of claim 1, further comprising a wiring harness system having electrical connectors configured to electrically connect the PV panels of the plurality of PV panels in series.3.The PV array of claim 2, wherein the wiring harness system further includes electrical connectors configured to electrically connect the PV array with one or more other PV arrays.4.The PV array of claim 2, wherein the wiring harness system further includes electrical connectors configured to electrically connect the PV array with a charge controller configured to charge one or more battery modules from electricity generated by the PV array.5.The PV array of claim 1, wherein the PV array is further configured to be anchored to the ground when the PV panel assembly is unfolded using:one or more cables coupled to the ground that run through one or more holes in a frame of at least one PV panel of the plurality of PV panels,one or more U-shaped stakes holding the at least one of the first support structure or the second support structure to the ground, ora combination thereof.6.The PV array of claim 1, wherein the PV panels of the plurality of PV panels are configured to be electrically grounded by one or more cables that run through one or more holes in a frame of at least one PV panel of the plurality of PV panels.7.The PV array of claim 1, further comprising one or more support elements coupled with the PV panel assembly, between the first end and the second end of the PV panel assembly along the longitudinal dimension, the one or more support elements also configured to support the PV panel assembly above the ground after the unfolding of the PV panel assembly.8.The PV array of claim 1, further comprising at least one motor configured to power the folding of the PV panel assembly, the unfolding of the PV panel assembly, or both.9.A photovoltaic (PV) power system comprising:one or more PV arrays, wherein each PV array comprises:a PV panel assembly in which adjacent edges of PV panels of the PV panel assembly are connected using hinges to allow accordion folding of the PV panel assembly during folding and unfolding of the PV panel assembly; anda first support structure and a second support structure coupled with the PV panel assembly and configured to support the PV panel assembly above the ground before, during, and after the folding and the unfolding of the PV panel assembly;a battery;a charge controller configured to charge the battery from electricity generated by the one or more PV arrays; andan inverter configured to convert a direct current (DC) electrical input from the battery to an Alternating Current (AC) electrical output.10.The PV power system of claim 9, further comprising a wiring harness system having electrical connectors configured to electrically connect the PV panels of the PV panel assembly of each of the one or more PV arrays to the charge controller.11.The PV power system of claim 9, wherein the battery comprises a plurality of electrically connected battery modules.12.The PV power system of claim 9, further comprising one or more anchors to secure the one or more PV arrays to the ground.13.The PV power system of claim 12, wherein one or more anchors comprises a conductive cable configured to provide an electrical ground connection to the PV panels of the PV panel assembly of at least one of the one or more PV arrays while securing the one or more PV arrays to the ground.14.The PV power system of claim 12, wherein at least one of the one or more PV arrays further comprises one or more support elements configured to support the PV panel assembly above the ground after the unfolding of the PV panel assembly.15.The PV power system of claim 12, wherein at least one of the one or more PV arrays further comprises one or more wheels coupled to the first support structure of the at least one of the one or more PV arrays and configured to reduce friction between the first support structure of the at least one of the one or more PV arrays and the ground during the folding and unfolding of the PV panel assembly of the at least one of the one or more PV arrays.16.A method of deploying a photovoltaic (PV) array, the method comprising:placing a PV array at a deploy site, the PV array in a folded configuration and comprising:a PV panel assembly in which adjacent edges of PV panels of the PV panel assembly are coupled using hinges to allow accordion folding of the PV panel assembly during unfolding of the PV panel assembly along a longitudinal dimension parallel to the ground; anda first support structure and a second support structure coupled with the PV panel assembly at a respective first end and second end of the PV panel assembly along the longitudinal dimension and configured to support the PV panel assembly above the ground before, during, and after the unfolding of the PV panel assembly; andmoving at least the first end of the PV panel assembly to unfold the PV panel assembly along the longitudinal dimension and transition the PV array from the folded configuration to an unfolded configuration.17.The method of claim 16, wherein the PV array further comprises a wiring harness system, and the method further comprises electrically connecting the PV panels of the PV panel assembly in series using electrical connectors of the wiring harness system.18.The method of claim 17, further comprising:electrically connecting the PV array with a charge controller using electrical connectors of the wiring harness system,electrically connecting the PV array with one or more other PV arrays using electrical connectors of the wiring harness system, ora combination thereof.19.The method of claim 16, wherein the first support structure comprises at least one wheel, and wherein moving at least the first end of the PV panel assembly comprises rolling the first support structure on the at least one wheel along the longitudinal dimension.20.The method of claim 19, wherein the PV array further comprises at least one motor configured to power at least one wheel and wherein rolling the first support structure on the at least one wheel comprises activating the at least one motor.
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