The present invention relates to ballasted mounting apparatus and systems for supporting a photovoltaic (solar panel) array at an optimal position to harvest solar energy from incident solar radiation, and more particularly relates to a ballasted mounting apparatus having advantages of mechanically simple components that are few in number and intuitive to assemble, low in cost to install, and low in cost of materials, yet are robust, highly adjustable, sufficiently rugged for use in difficult environments, and very flexible and well adapted for use in different environments with minimal site preparation.
Solar systems are often installed on uneven or unfriendly terrain where leveling the ground surface may be prevented by environmental constraints (e.g. a capped landfill or a contaminated EPA-remediation site), rapidly varying gradients, rocky subsurface conditions, seasonally unstable terrain (e.g. permafrost or sand/peat bogs), or require excessive costs of moving earth. Conventional panel mounting systems (those having no mechanism for tilting and locking a supported solar array) have gained acceptance in solar contracting where site preparation can level the terrain. However, known conventional solar mounting systems do not accommodate irregularities in the terrain very well, such that site preparation must level the site. It is problematic that known conventional solar mounting systems do not, within themselves, include an ability to adjustably level solar panels to an overall system level and panel angle. It is problematic that most known conventional solar mounting systems require penetration of the earth and/or a foundation for anchoring the system.
Further, known conventional solar mounting systems require considerable installation time, effort, and cost at the installation site. This is at least partially because they generally lack portability, and lack an ability to substantially preassemble units at a staging site and move the preassembled units to an installation site. It is also related to a complexity and need for customization of components and lack of adaptability/flexibility in the known conventional mounting systems. Notably, known conventional solar mounting systems tend to be massive, expensive, and capital intensive, with materials and installation costs for the mounting system often adding up to a substantial percentage of the overall solar system expense.
In one aspect of the present invention, a solar panel mount system includes a ballasted block support, a post pivoted to the blocks support at a lower pivot, and a solar panel frame pivoted to the post at an upper pivot with the solar panel frame having a center of gravity generally over a center of the ballasted block support and with a solar panel supported on the frame facing toward a desired sunlight-receiving direction.
In another aspect of the present invention, a solar panel mount system for attachment above a support includes a post defining a lower pivot for pivoted attachment to the support, and a solar panel frame pivoted to the post at an upper pivot with the solar panel frame having a center of gravity that is generally over a center of the lower pivot and with a solar panel supported on the frame facing toward a desired sunlight-receiving direction.
In another aspect of the present invention, a solar panel mount system includes a support, a post including a lower pivot and a series of holes around the lower pivot for fixing a selected angle of the post on the support, and further including a series of longitudinally-spaced holes that can be selectively engaged by a pivot pin to define an upper pivot. The system further including a yoke having a center section configured to engage the pivot pin at the selected hole and with ends configured to engage and support interconnected beams that define a frame for supporting at least one solar panel.
In still another aspect of the present invention, a method includes providing a post defining upper and lower pivots, providing a solar panel frame with yoke adapted to be pivoted to the upper pivot of the post, forming a ballasted block support, the step of forming being done either at an installation site or first formed then shipped to the installation site, attaching the post to the ballasted block support at the lower pivot, including pivotally attaching the post to the ballasted block support, angling the post to a desired vertical position, fixing the selected vertical position, and attaching the solar panel frame at the upper pivot, including pivotally attaching the solar panel frame to the post, angling the solar panel frame to a desired sun-facing position then fixing the selected sun-facing position.
In another aspect of the present invention, an apparatus includes a ballasted support, a frame supporting a photovoltaic panel, and an articulating support supporting the frame and the photovoltaic panel, the articulating support including a first adjustment for locating a center of gravity of the frame and the photovoltaic panel centered over the ballasted support, and a second adjustment for angling the photovoltaic panel at an optimal sunlight-receiving direction.
In another aspect of the present invention, an apparatus includes a ballasted support with a bottom surface defining a significant footprint and that does not penetrate a ground surface, a frame supporting a solar panel, and an articulating support supporting the frame and the solar panel over the ballasted support for rotational movement about different axes and in multiple different planar orientations.
An object of the present innovative system is to provide self-ballasted mounting systems with mounting footprints allowing it to replace the need for penetrative solar mounting systems (e.g. driven vertical-support posts or lag screws or auger supports engaging soil).
An object of the present innovative system is to provide hardware that allows for angular adjustment of generally vertical mounting posts that support a solar-collector array, but that do so without earth-penetrating mounting posts or poured concrete foundations.
An object of the present innovative system is to provide an ability to meet local codes and generally accepted engineering standards for wind-loading and/or seismic requirements for a completed installed system.
An object of the present innovative system is to provide a solar mounting system useful in installations on EPA-remediation sites where penetration below a capped fill is not allowed, or on a membrane-covered landfill site where penetration is not an option.
An object of the present innovative system is to provide a system that takes advantage of financial and tax incentives due to the non-permanent nature of the present ballasted solar mount system. It is noted that ballasted and non-permanent installations can be considered accessory equipment and thus not taxed as an “installation/capital asset” tax basis. Thus, permits from local governments can be obtained by legally describing the installation as “temporary” (as opposed to “permanent”). Thus, a permit to cover the landscape with a ballasted solar system can be permitted as a temporary structure, providing significant tax incentives and tax advantages. Alternatively, a permit may not even be required to meet land-use codes.
An object of the present innovative system is to provide a mounting system capable of use in substantially any earthly location (latitude and longitude) and most soil conditions (e.g. rock, lava, sand, sub-polar tundra, polar ice).
An object of the present innovative system is to provide a portable or semi-portable system that can be readily moved (or moved after subassembly) and related, thus enabling powering of seasonal or temporary expeditions, geological exploration for mining, oil, and/or gas, or military requirement. It is contemplated that the present innovative mount system can be used to bring electric power to storm ravaged recovery zones, refugee camps, and other disaster or war-torn geographies.
An object of the present innovative system is to provide a mount system that itself is capable of supporting a solar panel array(s) in a most stable gravitational position (with center of gravity over a best location), yet adjustably support the solar panel array(s) in an optimal angular position for receiving sunlight, and that is also adjustable to support the solar panel array(s) of the system in a relatively coplanar condition despite undulations and disruptions in the underlying ground surface.
An object of the present innovative system is to provide a ballasted support system for supporting a solar panel system above shallow waters, in seasonal flood planes, in holding basins, and/or over water/sewer treatment basins, thereby making use of acreage that is otherwise limited to a single use (or no use at all).
These and other aspects, objects, and features of the present invention will be understood and appreciated by those skilled in the art upon studying the following specification, claims, and appended drawings.
The phrase “solar panel” as used herein is intended to refer to elements of photovoltaic systems and solar thermal systems and/or combination hybrid systems using one or both, which systems are used to harvest solar energy from incident solar radiation, and in particular is intended to refer to solar electric arrays forming part of an electrical energy system and to refer to solar thermal (heat transferring) arrays forming part of a heat-based energy system and to refer to integrated PV plus solar thermal panels which capture both electric and heat energy from the sun's radiation.
A solar panel mount system 30 (
A related method of installation includes placing the ballasted block support 31 freestanding on the ground 29, and attaching the remaining components 32, 34, 37 at desired angles to locate the center of gravity of the system (including the solar panel frame 34 and solar panel 36) over a footprint of the ballasted block support 31, and fixing an angle of the solar panel frame 34 and solar panel 36 at the desired sun-facing position. It is noted that the ballasted block supports 31 can include a feature facilitating transport, such as fork tine grooves (see support 31 on left side of
The ballasted block support 31 (
It is contemplated that the present ballasted block support 31 can be used on stable or semi-unstable soil and ground surfaces. For example, the present ballasted block support 31 can be used on soft or moist soil and/or sand. Also, the present ballasted block support 31 could be submerged or partially submerged in shallow water, thus allowing the present system to be installed in a flood zone, an architectural pond, and/or a municipal or agricultural water/waste irrigation or treatment pond, such as where the solar panel system can be supported above the water's surface without adversely affecting (nor depending on a stability of) the underlying ground surface, but where it is not satisfactory to provide an in-the-ground support system.
Attached to a top of the ballasted block support 31 (
Instead of holes, slots 44B (
It is to be understood that achieving a centered center of gravity (see
The post 32 (
The solar panel frame 34 (
Beams 42 (
It is contemplated that the beams 42 can be bolted using a single attachment bolt 69 directly to the beam 42 (
Various methods of installation are possible. One method of installation includes, (1) constructing a ballasted block support 31 with brackets 44 and 45 (on site or off site) and placing the ballasted block support 31 in a desired location (or casting the support 31 in the desired location) freestanding on the ground surface 29, (2) attaching the post 32 to anchor brackets on support 31 using the lower pivot 33, (3) fixing the lower pivot 33 for best center of gravity position by selecting a best arcuately-spaced hole 50 for anchoring fixing bolt 51, (4) attaching yoke 41 at desired height on upper pivot 35 by selecting the best upper pivot hole from the longitudinally spaced holes 53, (5) fixing an angle of the yoke and thus the horizontal tilt of the solar panel 37 by selecting a best arcuately-spaced hole 62 for best sunlight-receiving orientation of the solar panel using fixing bolt 56 through chosen holes 62 and 55, and (6) operably connecting the solar panels to form an optimized solar energy system.
The illustrated ballasted block supports are precast concrete. However, it is contemplated that the innovative ballasted block supports can be made from (or made to be filled by) any local material suitable as a heavy ballast. For example, it is contemplated that a hollow support shell (fully hollow or partially prefilled) can be constructed of any suitable material (e.g. concrete, metal, wood, plastic, composite, stone, clay, or other) and filled by suitable solid low cost fill/ballast material that is locally available (e.g. concrete, clay, stone, metal, energy storage batteries). It is contemplated that the present hollow support shell (fully hollow or partially prefilled), if made sufficiently rigid, can be made to retain non-solid heavy ballast materials (e.g. sand, debris, dirt, slurries, soil/sand mix, water, combinations of same, and/or other).
Advantageously, the present innovative system described above is able to provide self-ballasted mounting systems for solar panels with mounting footprints allowing it to replace the need for penetrative solar mounting systems (e.g. driven vertical-support posts, lag screws for roofs, augers for ground soil). Further, it provides hardware that allows for angular adjustment of generally vertical mounting posts that support a solar collector array, but does so without earth-penetrating mounting posts or poured concrete foundations. Still further, its hardware can be adapted for many different installations, such as even on rooftop situations, where it is desirable to not penetrate the roof, yet stably support the solar system at an optimal sunlight-receiving angle. Another advantage of the present system is that it has an ability to meet local codes and generally accepted engineering standards for wind-loading and/or seismic requirements for a completed installed system. Notably, the present innovative system is useful in installations on EPA-remediation sites where penetration below a capped landfill is not allowed, or on a membrane covered landfill site, or submerged in shallow water ponds or in flood zones, where penetration is not an option or is not desirable.
The present innovative system also provides a system that takes advantage of financial and tax incentives due to the nonpermanent nature of the present ballasted solar mount system. Specifically, it is noted that ballasted and nonpermanent installations can be considered accessory equipment and thus are not taxed as an “installation/capital asset” tax basis. Thus, permits from local governments can be obtained by legally describing the installation as “temporary” (as opposed to “permanent”). Thus, a permit to cover the landscape with a ballasted solar system can be permitted as a temporary structure, providing significant tax incentives and tax advantages.
The present innovative mounting system can be used in substantially any earthly location (latitude and longitude) and most soil conditions (e.g. rock, lava, sand, sub-polar tundra, polar ice). Also, the present innovative system is portable (or at least semi-portable) so it can be readily moved (or moved after subassembly). This enables powering of seasonal or temporary expeditions, geological exploration for mining, oil, and/or gas, or military requirement. For example, it is contemplated that the present innovative mount system can be used to bring electric power to storm ravaged recovery zones, refugee camps, and other disaster or war-torn geographies.
Notably, the present innovative mount system itself is capable of supporting a solar panel array(s) in a most stable gravitational position (with center of gravity over a best location), yet adjustably supports the solar panel array(s) in an optimal angular position for receiving sunlight, and also adjustably supports the solar panel array(s) of the system in a relatively coplanar condition despite undulations and disruptions in the underlying ground surface.
An advantage of the present innovative mount system is that it can be used to support solar panels which create electric power (photovoltaic panels) and/or thermal power (e.g. hot water or hot air), or hybrid combinations of both.
It is to be understood that variations and modifications can be made on the aforementioned structure without departing from the concepts of the present invention, and further it is to be understood that such concepts are intended to be covered by the following claims unless these claims by their language expressly state otherwise.
This application claims benefit under 35 USC section 119(e) of a provisional application Ser. No. 61/698,649, filed Sep. 9, 2012, entitled SINGLE AND MULTI-AXIAL ARTICULATION IN BALLASTED PHOTOVOLTAIC MOUNTING SYSTEMS, the entire contents of which are incorporated herein by reference.
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Number | Date | Country | |
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20140069483 A1 | Mar 2014 | US |
Number | Date | Country | |
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61698649 | Sep 2012 | US |