Made, engineered and manufactured in Australia, SunLock® racking is the major commercial solar mounting method on the Australian market place. Ballasted mounts rest on a totally free-standing base that is not drilled into your roof. These wise chips from Maxim go beyond the standard add-on optimiser and separate the panel into three strings of cells which enables the panel to operate at the optimum MPPT voltage when partially shaded or dirty. If tracking of the solar panel array is preferred, the advised trackers are single-axis units that call for tiny handle or energy. 0026 A additional object or function of the present invention is a new and enhanced floating structure for a solar panel array that permits solar panels to be positioned for optimal solar power collection even though afloat. Enter your zip code to locate out what solar panels expense from installers close to you. As a common guide, when mounted in accordance with their directions most mounting systems will meet Australian requirements. With a variable width for all mounting systems. Pole mounts are the best solar panel mounts to use in heavy snow regions, because the steep tilt angle assists shed snow. For optimum efficiency, a solar panel requirements to be produced of related modules oriented in the exact same direction perpendicular to direct sunlight. Supplied with marine-grade mounting frame kits for ships and marine applications. Flat rooftops (or low slope roofs) can use related racking hardware with tilt legs to achieve an appropriate angle. SnapNRack is a manufacturer of photovoltaic module mounting items and systems. Glass plates are possibly the ideal solution to have about for creating base for your solar cells. Due to the fact it really is one particular of the most time- and labor-intensive components of hooking up the method, solar panel mounts are one particular of the largest costs during a solar energy program installation. Permits the angle of the solar panel to be adjusted for the ideal benefits. MOBASOLAR has created particular Terragrif products which are compatible for more than 90% of mounting systems. Now when you have frames and when all the cells are arranged and connected, you will require to put some wires by means of the lines of cells you have. This frame is designed to hold a particular quantity of solar panels, which depends on the frame. It has become increasingly a lot more costly to import solar mounting systems from China, the principal source of solar mounting systems in South Africa. The mooring lines are pre-tensioned and released at a fixed length at the time of installation, and if required during the upkeep period, to afford the relative vertical movement the array may go through for the duration of its style life. For most applications, the extra labor and the added complexity of the array mount does not justify the modest increase in energy developed. Solar panels are not restricted to rooftops they can be freestanding and ground-mounted systems that create power for your home wherever they take place to be. Aside from the reality that tilt frames look ugly, panels at a shalllow angle perform a lot greater below cloudy situations. Some special solar PV modules include concentrators in which light is focused by lenses or mirrors onto smaller cells. Following to RMI , Balance-of-Program (BoS) components, this is, non-module expense of non- microinverter solar modules (as wiring, converters, racking systems and a variety of elements) make up about half of the total charges of installations. Now included self earthing mechanism and accessory holes, we are very excited to introduce you to our industrial tilt mounting system. You will need to test and activate the solar cells just before moving onto generating your solar panel and go on with producing a lot more solar cells if you have produced your first one successfully. We advocate the IronRidge XR100 or XR1000 (same as a standard roof mount) with the addition of tilt legs. This unique design and style covers much more of the panel surface location as it does not call for front side busbar connections which partially shade the cell, therefore increaseing the panel efficiency a lot like IBC cells explained below. The mount makes the installation of modest solar systems straightforward, affordable and quick. But if your garage is flat and occurs to get the most sun, a flat roof mounting choice may be best for you. Place the mount with each other and spot it on best of your solar panel to check the match. Aluminum solar frames along with higher alloy stainless steel frames are made with the highest tolerances and great forming capabilities, to make the superb top quality aluminum solar frame that we are accustomed to create.

The Solar PV panels frames need to be bespoked for the mounting technique so there is a restricted choice of panels with these set ups. For example, in 1 aspect, a simplified installation motion is employed to engage an auxiliary component, such as a photovoltaic panel assembly, with a mounting hook. If we crunch the numbers with my favourite cost-free, on the internet solar energy analysis tool, PV Watts , then we can quickly operate out that 3kW of north facing solar panels at the best angle of 34° will generate 11.9kWh per day averaged more than 1 year. These kinds of mounts are normally used for homes that have way also considerably shade on the southern roof exposure and a sunny northern exposure. One effectively-installed pole is capable of holding a surprisingly massive quantity of solar panels—at times, up to as several as sixteen. And that does not include receiving the extra star knobs, flange nuts or anything to mount the panels to every single set of stand legs. We are providing Solar Panel Mounting Structure GI & Painted to our respected consumers which are situated all round the nation. In addition to continuous feedback from our solar specialists in Australia, the US and about the globe, the clean power critiques group invite all solar industry experts and installers to give your feedback (optimistic or negative) from expertise with any modules. We style and manufacture solar panel help frames that very best fits your PV modules mounting. This mounting technique allows for decommissioning or relocation of solar panel systems with no adverse effect on the roof structure. This is a good explanation to create a Ground mount array frame if achievable, this allows maximum air flow and ease of cleaning. The size of solar panels makes them properly suited to be installed vertically on most roofs. Frames can be manually adjustable so that the solar panels can be tilted up for much more exposure in the winter time when the sun is reduce in the sky. Installation is extremely easy and fast, which is especially helpful to remote websites with the selection of Roof Mount or Ground Mount systems getting available. The mount is only compatible with Renogy 80W and 100W solar panels. In these instances, tilt legs can be utilized to adjust the panels to the proper angle. The world’s most efficient and greatest performing solar panels are manufactured by SunPower and LG using IBC N-sort monocrystalline silicon cells and although they are the most pricey, they are with out doubt the most trustworthy and highest good quality panels offered. Even though the mounts themselves are pretty inexpensive, they can cost a pretty penny to be installed. The cells are assembled into modules by laminating them to a transparent colourless fluoropolymer on the front side (generally ETFE or FEP ) and a polymer appropriate for bonding to the final substrate on the other side. As long your roof has adequate space to match the system size you are right after and it has good sun exposure, preferably facing due North in Australia, a roof-mounted solar PV method is the proper option for you. Right here are the top five firms that offer ground-mounted solar panels. Supply high high quality solar support frame from our excellent choice of trustworthy solar support frame manufacturing factories. A standard ground mount uses a straightforward metal frame to support the weight of the rest of the system. Note: panel and cell temperature is also effected by roof color, tilt angle and wind speed, so mounting panels flat on a really dark rooftop will generally lessen panel performance compared to lighter colored rooftops. Also, due to the fact it is off the ground I won’t kill any grass under my solar panels considering that hot solar panels will kill the grass below them when laying on the ground. A properly made solar help structure is of paramount value to the extended term overall performance of any solar program. Emerging, third generation solar technologies use advanced thin-film cells. However without having the strength of an aluminium frame double glass panels, though a lot more durable, are not as stiff and can appear to flex or bow, specially when mounted flat or horizontal. The solar mounts can be positioned in most sections of your home, and they’re constructed to offer a firm hold that stands up to higher levels of wind for the duration of operation. A photovoltaic method generally consists of an array of photovoltaic modules, an inverter , a battery pack for energy storage, charge controller, interconnection wiring, circuit breakers, fuses, disconnect switches, voltage meters, and optionally a solar tracking mechanism.

8 shows the hinged connection amongst N-S frame members 130a, 130b in adjoining array modules. Whilst rooftop solar arrays are the most common selection for home owners, there are several factors to take into account a ground-mounted solar panel program. 5A-5b show the installation of the N-S frame members atop the E-W frame members, which are in turn mounted to the floats. Angled brackets 200 (els) can be provided to enhance structural rigidity at the panel assistance connections 202. Even though rooftop solar panels are the most typical variety, not everyone’s residence is suited to them. From a single panel mounted on a post to a big ground-mounted multi-kilowatt pv array. Wire (2.1.1.3): Our Renogy solar panels come with normal PV wire that is weatherproof and insulated (as lengthy as there is no exposed copper wire). The next issue is to divide the leading-to-bottom length of the roof by the lengthy edge of the panels to come up with how a lot of rows will match in the space offered. The companies we provide are designed to provide reputable solar panel mounting structures for residential, industrial, and utility-scale projects and frequently incorporate stamped engineering. In terms of the amount of power made, ground and rooftop panels are fairly significantly the identical, at least on the surface. If your property uses a lot of power, then ground-mounted panels may be better for you. Even though solar panels might get all the glory when you’re speaking about how amazing solar energy is for lowering your electrical energy bills, producing green jobs, and saving the planet, solar mounting choices are just as essential. It is constantly sensible to speak with a solar installer close to you to see what your choices are for solar panel mounting. Whilst railed systems are the most common solar mounting alternative, rail-much less systems are undoubtedly catching up. Unlike the regular rack mount, the angles can be adjusted so that the panels are not parallel to the roof plane. Possessing a solar mounting frame and roof panel as well close to the edge of the roof, will enhance considerably the wind forces on the panel and system structure for the duration of heavy winds. Getting the original patent holding U.S. manufacturer of the Rooftrac® “Best-Down” solar mounting system, one particular can be confident realizing they are getting supplied with nothing at all but exceptional solar equipment goods. Solar panels carry out well when they are free of charge of shade, or even in partial shadow, and the sun is directly above. The solar panel stand legs are the most essential component of the entire assistance mount. Targray’s portfolio of aluminum solar panel frames is a trusted source for PV module manufacturers in search of superior mold sophistication at a competitive price tag. Flat roof mounting options are typical for industrial and industrial buildings considering that they have large spans of wide open space perfect for solar panels. Placing solar panels directly onto the ground operates quite okay for the duration of the summer season but in the course of the fall, winter and spring a solar panel stand tends to make a huge distinction in power production. Photovoltaic panel frames are anodized and have a resistance in the area of 20 MOhm. All this required was 3 normal pulpit rail mounting brackets that I attached to a stout sheet of aluminium bolted across the panel frame – very best noticed under with the panel folded down. The panel supports are mounted transversely across the N-S frame members and are preferably Z shaped rolled sheet metal with stiffeners, as necessary, to help the weight of a plurality of panels mounted on their upper edges. The typical size of solar panels utilized in a rooftop solar installation is around 65 inches by 39 inches, or 5.four feet by three.25 feet. Common ground mounts use metal framing driven into the ground to hold your solar panels up at a fixed angle. This report will help you recognize solar panel size, solar panel weight, and no matter whether your roof can support solar panels. A pole mount is a durable rack or frame built to hold a set of solar cells that’s mounted up on best of a single pole. Panels at 25 degrees will only create eight.two% more power than those at degrees. In theory, trackers are useful in optimizing the facing of your panels to squeeze each final drop of production out of your array. We will ensure that your solar panels are mounted in the right location on your roof – as at times wind damage can take place if modules are mounted as well close to the edge or ridge of the roof. Anyway, it took ’em 3 days to solve all the ‘insurmountable’ issues AND hand me a cheque for the energy racked up on the analog meter from the date of installation.

66 There are solutions to handle the more than voltage issue, such as regulating PV inverter energy factor, new voltage and energy handle gear at the electrical energy distributor level, re-conducting the electricity wires, demand side management, and so forth. Generally I would anticipate tilt frames to add more than $400-500 to the price of a six.six kilowatt system. Considering that solar panel frames differ so frequently, they are the most intricate to make as well as the most fascinating. An additional issue to pay consideration to are the sides of the solar cells as your solar panel will not perform at all or will not be functioning appropriately if the cells are not connected in the following manner: the bottom of the cells is positive and the leading is damaging. Quantified the energy yield before deciding exactly where to stick the panels – I want everyone was so scientific in their approach instead of the wild assed guesses you typically see. The ground usually gives a lot more room to set up a lot more panels than the roof does. One more emerging PV technologies using MJ-cells is concentrator photovoltaics ( CPV ). A massive advantage of ‘add-on’ optimisers such as these from Tigo and SolarEdge is the capacity to monitor the overall performance of each solar panel individually, this can also help highlight any faults and concerns in a solar array. 0024 On occasion, the inventive floating system for a solar panel array will be installed on a body of water possessing a variable water level. 10A-10D are schematic top plan views displaying an assembly scheme for the array modules, first involving the coupling of single array modules 100 in the east- west direction by connecting E-W frame members 124 utilizing splices 212 to produce a three-module row 250 FIG. A-1 Engineering will assess the building and the situation of the roof framing program to estimate whether or not the framing can assistance the weight of the new solar panels. You can also decide on from is alloy solar panel support frame There are 233 suppliers who sells solar panel help frame on , primarily situated in Asia. We have worked with regional solar power contractors to develop and construct solar energy assistance frames. We now have a use for our fourth solar panel, and we could not be happier with how the PVC mount turned out. In practice, if you require a lot more output, it’s far much more cost-effective to add 1 or 2 added panels to your array (presuming you have space). A handful of years ago, when panels had been 5x the cost, this would have been an insane suggestion (and some old college solar installers still believe it is a terrible waste!). Stand-off mount: The panels are supported by a frame built above the roof. A advantage of skipping the rails (apart from saving a bit of cash) is that you are not forced to match your solar panels among these two rails only. They give you simple, secure mounts for a solar panel frame that will not draw consideration to itself. Purpose some people do not like the versatile solar panels is that they do not last as extended as the rigid panels. A ground-mounted installation entails a frame that is constructed for your solar modules which tilts them up to an optimal angle (around 30 degrees) and faces due North (in Australia). Reduce your ground mounting charges with this prefabricated, compact mounting package. Nevertheless, in all situations the mooring and anchoring style is configured to create equal force resistance to each and every array support point via the use of a continuous and running mooring line. The 1st sort of solar cell developed in 1954 by Bell labs utilised an N-kind doped silicon wafer but over time the much more price powerful P-sort silicon became the dominant cell sort with more than 80% of the international market in 2017 employing P-sort cells. 0025 From the foregoing, it will be seen that it is a main object of the present invention to supply a new and improved modular floating help structure for a solar panel array. The panels and the mounting rack collectively weigh a total of 35lbs which is easily picked up and moved around wherever I need to have it. With roof pitch dollar 2m square collector mounting frame. We’ve all noticed Solar PV panels mounted on people’s roofs and on the roofs of firms, so here’s a rundown of the possibilities to get them up there. Solar mounting systems can be customized to suit any photovoltaic (PV) project by changing the orientation, elevation and angle of the solar array to maximize its energy productivity. But for ground mounts, the rails require to be set on a substructure of 2” or 3” steel pipe.

By combining a heritage of excellence in German engineering with American innovation, in 2011 Renusol America introduces the groundbreaking, American-made Renusol CS60- the 1st one particular piece mounting method for PV panels. Whether or not a solar roof mount, ground mount, leading of pole mount, side of pole mount, tower mount or solar carport, we can accommodate your needs. 7,758,011 entitled Adjustable Mounting Assembly for Standing Seam Panels” which issued to Haddock on Jul. For use on ships, PV modules or solar panels require to be installed appropriately making use of specialised mounting frames. You will also require to build a frame for your solar cells and the frame will be the base for your DIY solar panel, so that is exactly where a hand saw will come as more than handy. Changing the tilt angle of an array to account for seasonal alterations in sun altitude is not essential. Don’t forget that there are different solar mounts utilized for each application: flush mounting for roofs, solar pole mounts , and solar ground mounts. Distinct standards exist for the roof mounting of solar systems. For the duration of the summer season solar panels can often lay flat on the ground and make about 90% of the energy that they would make if they have been up on the rack. The entire mounting technique expenses about the same as acquiring yet another one hundred-watt solar panel but in the course of the winter the solar stand helps make twice as much power. Most solar panels for rooftop solar installations are produced up of 60 solar cells, although the regular for industrial solar installations is 72 cells (and can go up to 98 cells or far more). The subsequent step then is to calculate the total number of solar modules we want to mount at our internet site. This type of mounting program is effectively suited for websites where excavation is not achievable such as capped landfills and simplifies decommissioning or relocation of solar module systems. In addition, if your home uses a lot of electricity, your roof may well not be huge sufficient for a solar power system that meets your electrical energy wants. Pole Mounts allow you to adjust the tilt angle to maximize your power output all through the seasons. Now solar panels are so inexpensive relative to a few years ago South pacing panels can make sense in Australia. An adjustable roof mount with tilt angles up to 45 degrees for maximum solar functionality. Discarded powder-coated bed-frames (generally 2″ angle) are also most useful for this type of workout ~ and with a bit of imagination can be used as a base for an tilt-adjustable string of panels. MT Solar pole mounts are yet another excellent alternative. As solar panels companies usually seek techniques to decrease costs, item style is of course influenced by this objective. With the support of the internet and our personal ingenuity we built an effortless portable, collapsible, and storable solar panel mount out of absolutely nothing but PVC and zip ties. There are a lot of factors figuring out the kind of solar mounting greatest suited for your residence or enterprise. Landpower Landscape Ballasted Solar Mounting is applicable to huge scale flat roof module installation. I have the solar panels and 24 Lead acid batteries(100Amph every) to power the residence at day and evening. The pole will most likely place the panels six or much more feet up in the air and let you sustain that ground space. Every fastening method 29 contains a roof clamp 31 and a catch or mounting bracket 33. Just before you commence arranging the cells, linking negative to good components as you go, you may possibly think about generating small frames in the quantity of cells you have and inside of the principal frame of your template. The Terragrif is held by the anchoring of the claws in the frame material and mounting program. Solar mounts aren’t just used to preserve solar panels in location throughout windy situations. Trackers are ground mounts that adjust automatically, guaranteeing your panels constantly face directly at the sun. Ground mount systems demand suitable land space, and they look industrial. We have chosen distinct brands of solar panels with various frame thickness, from 31 mm to 50 mm to submit them to a mechanical resistance test. Collectively with structural engineers, the solar panel market has looked for efficient structural frames that are light in weight and price effective to set up, construct and that are capable to carry the weight of the solar panel program. One kind of passive tracker is driven by a closed Freon system that causes the tracker to comply with the sun with adequate accuracy for flat-plate PV modules, such as the Zomeworks In higher wind areas a powered tracker may possibly be preferred.

I generally have about 500 watts in solar panels setup on my stand which implies I have 5 panels total. We’re completely off-grid and hookup-free of charge here at Gnomad Property, and without having sunlight we can not operate, or charge our phones, or write these epic vanlife guides And with our roof-mounted solar panels , we had no way to charge up our batteries with no parking the van straight in the sun. And you do not want to set up the solar array right up to the edge of the roof. Do the exact same calculation for the number of panels across the width of the roof (336 inches ÷ 40 inch panels = 8 panels or eight columns across the horizontal width of the roof. But when it comes to your solar mounting choices, one particular size does not match all. If you call for a complete method please check out our Triangle Tilt Mounting Program page or you can speak to us anytime with your requirements and we can tailor a technique to your needs. All solar mounting systems have a limit on developing height, usually 10m, at times 20m. Hybrid marine power solutions like solar energy save fuel, reduce pollution and are expense powerful. We purchased a solar panel tilt mount from Amazon, but it just did not do what we necessary it to. This mount was made for fixed mounting on a roof, so it did not easily fold up for storage – we had to unscrew and screw in many wingnuts to set it up and break it down. 32 There may also be occupational hazards of solar panel installation and upkeep. Roof-mounted systems are a great selection – there is a wide variety of elements and systems out there to custom-fit practically any module configuration to nearly any roof – flat or pitched, constructing heights of up to 200m. Here are the best 3 items that you want to know about ground-mounted solar panels. See our ‘Compare Solar Panels’ page for details on how heat affects solar pv overall performance. For instance, the present accessory mounting brackets or catches can be secured to conventional roof clamps such as these disclosed in the following U.S. Pat. The Renogy Solar Panel Pole Mount is developed for off-grid applications when mounting to a roof is not excellent. The Terragrif is attached in the module’s frame and on the mounting system. Every of the modules’ frames should have its own earth cable (in 6 mm²) connected to the primary earthing cable (>= 10 mm²), whilst avoiding the creation of a tiny bridge between the modules’ frames. 16. The floating assistance structure of claim 1, wherein stated coupling hardware consists of a splice disposed amongst stated E-W frame members of adjoin array modules, mentioned splice configured and contoured to conform closely to the sides of mentioned E-W frame members, wherein mentioned E-W frame members incorporate spaced-apart frame member insertion elements that cooperate with at least one particular corresponding splice insertion element disposed on stated splice, such that as mentioned splice is slidably mated to and between stated E-W frame members of adjoining array modules, a frame member insertion element engages a corresponding splice insertion element to retain stated splice and stop it from being pulled apart from stated frame member, and wherein mentioned splice can then be additional translated along stated frame member and into further engagement with stated frame member till stated splice insertion element engages mentioned a second frame member insertion element so as to hold said splice firmly in location. In this case, a fixed roof mount is the easiest and most expense-efficient alternative. Clenergy ezRack ECO Rail Kit – two x 4200mm Rails Pair of Clenergy ezRack ECO rails, each becoming 4200mm extended – suitable for mounting four x 60 cell solar panels (~1000mm width). This efficiently splits the solar panel into two smaller sized panels of 50% capacity, which operate in parallel. Monocrystalline solar panels are slightly larger in efficiency than polycrystalline panels simply because every utilizes a distinct manufacturing method. For several the higher price of the these premium N-type solar panels ($1 or a lot more per W) is outweighed by the larger efficiency which ranges from 20 to 22.six%, enhanced overall performance at larger temperatures and minimal light induced degradation (LID), which implies significantly greater energy yield over the life of the panel. All Terragrifs are studied and realized according to the mounting method and photovoltaic panels. Rather of installing rails and then mounting the solar panels to them, your solar provider will set up a series of mounts that will connect with the built-in mounting hardware on your solar panels.

These systems imply that your Solar PV panels become the actual fabric of your roof, serving two purposes, weather proofing and energy provide. Fewer rails are necessary to mount a solar panel vertically as an alternative of horizontally. That is the case if the versatile solar panels have a PET finish on them. Structures are made to suit person solar arrays and internet site conditions, detailed dimensional drawings becoming supplied for each installation. On a pitched roof, flat roof, garden shed, on the ground or even on a pole… Naked have noticed it all before and can support you uncover the excellent Solar mounting method to get your solar panels exactly where you want them. Ground-mounted solar panels can provide a quantity of advantages more than standard rooftop panels. We sell Solar Mounting Frames for metal and tile roofs, as well as ground mount systems. 439 solar panel assistance frames products are presented for sale by suppliers on , of which solar mounting system accounts for 11%, solar power method accounts for four%, and aluminum profiles accounts for three%. A wide range of solar panel help frames alternatives are accessible to you, such as decorations, transportation tools. 0027 An even further object of the present invention is to offer a novel floating structure for a solar panel array that is lightweight and simply transported to and assembled at or near an installation internet site, either on dry land or on the water. 0004 Systems and apparatus specifically adapted for floating a huge array of solar panels are building, but they are comparatively new and therefore currently present several as yet unsolved problems. Yet another alternative that comes as an alternative for connecting the solar panel to your method without getting to use deep cycle batteries is connecting the solar panel to an Uninterruptible Power Supply computer, also named UPS. The frame elements provide a normally horizontal base on which solar panels are mounted. The panels are almost constantly parallel to the roof surface. The solar panel stand legs are very easy and consist of two 41” extended aluminum slotted angle pieces, 1 21” aluminum angle brace, and a few star knobs, bolts and flange nuts. We wired our roof panels in parallel utilizing the Signstek Y-branch cable connector , so we had some open MC4 connectors to plug in to. MC4 connectors are wonderful and all, but you require a unique tool to take them apart, and that is a no-go if you are creating anything that is supposed to set up quick and easy. A mooring and anchoring system securing the solar panel array to shore and distributing loads along large portions of the array. By collecting a diverse array of solar bids, you can evaluate expenses and savings primarily based on the different gear packages obtainable to you. Numerous double glass panels are also frameless obtaining no aluminium frame which can complicate the mounting of panels as particular clamping systems are necessary. Solar panels can weight up to 10 pounds per square foot which means the roof has to be capable to help the extra weight of the solar panels and the frame. The quite cool Rapidly-Rack Rail Program was designed to speed the installation of large scale PV arrays on sloped roofs with a minimum quantity of roof penetrations. If your roof is not at the proper angle, doesn’t face south, or has obstructions like chimneys or skylights, then your solar array will be significantly less productive. 0003 Rooftop solar arrays need the modification of the rooftop structure, can be harmful and tough to function on, and give only a limited footprint. Nicely, merely because it may happen that some cells won’t be working, so to make the complete building simpler to work with, maintain and assemble, you can construct small frames for solar cells and make replacements simpler. Second, a ground mount solar panel system can be far more productive per panel than a rooftop solar array. Marine grade frames and mounting kits for ships & offshore applications are also offered. Integrated mount: PV panels replace traditional roofing components and attach straight to the roof’s rafters. While certain panels will have greater efficiency ratings than others, investing in leading-of-the-line solar gear does not always outcome in larger savings. Mounts for roof, ground, pole and carport mounted solar PV systems at low wholesale prices. Rail mounts, which are attached straight to the roof structure and might use additional rails for attaching the module racking or frames.

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