 | Thin-film photovoltaic (PV) laminates Video is from Google video. Installing clean, reliable, inflation-proof solar power is easier than ever, thanks to the invention of thin-film photovoltaic (PV) laminates that can be bonded directly onto metal roofing panels. Unlike crystalline PV material, there's no need for obtrusive racks and heavy, expensive glass. Instead, unbreakable thin-film PV is produced using amorphous silicon, encapsulated in Teflon and other polymers. http://www.etaengineering.com/panels/unisolar.shtml http://www.mhi.co.jp/power/e_a-si/index.html http://www.bigfrogmountain.com/powerfilmsolarproducts.htm |
 | RVision Diamondback in the Killhouse This video reveals operatives in a killhouse for purposes of training. To find out more about these products from RVision contact sales@rvisionusa.com or check out www.rvisionusa.com |
 | Cooled Thermal Imager This video shows people and objects in total darkness with the magic of a long range thermal imager. For more information contact sales@rvisionusa.com or check out www.rvisionusa.com |
 | Building the Continuous Random Network Building process of the network glass structure, proposed by Zachariasen in 1930s. This is a model structure of amorphous silicon, low-density amorphous ice, and silica glass. |
 | Now Going Solar Is Easier And Cheaper Than Ever http://www.homemadepowerplant.com/?hop=adonpub Owning a clean, reliable, residential solar electric power system is now easier and cheaper than ever, thanks to the creation of thin-film photovoltaic laminates which are easily bonded directly onto steel roofing panels. Unlike old-fashioned, crystalline photovoltaics or PVs, there's no need for obtrusive racks and heavy, expensive glass covers. Instead, the unbreakable, thin-film photovoltaic laminates are produced using a sophisticated, amorphous silicon encapsulation process, making a far superior photovoltaic to that of conventional solar cells. |
 | hydrolysis of amorphous silica hydrolysis of amorphous silica red: oxygen white: hydrogen yellow: silicon This movie shows a constraint molecular dynamics simulation, in which a water molecule attacks Si-O bond in silica glass. |
 | Tile Roof Solar Panel Installation Tips http://www.solardave.com/index.php/installing-solar-panels-on-a-tile-roof-can-be-tricky-video/ This is my 1st video interview with John Shaw Project Engineer Bella Energy of out of Louisville Colorado. Anderson Hoke Project Engineer is also interviewed in this clip. SolarDave: Installing solar panels on a tile roof can be tricky, what is your approach ? John Shaw: The easiest way to do PV on a tile roof weather that is curved Spanish tile or flat concrete tiles is to use building integrated PV product. Sharp has a product, Open Energy has a product, both of them basically hang on the battens. They are silicon cells so they are not the thin film amorphous that simply means that they are as efficient as a standard panel from Sharp or Evergreen or what not. They get screwed in to the roof decking just like the concrete tiles. They intergrate with the concrete tile with a lip, this perticular one made by Open Energy is a 35 watt tile, it replaces 3 concrete tiles and it is basically the same height as a concrete tile and the width of them is the same and it is really the easiest way to do solar on a curved spanish tile or flat concrete tile roof. If one wants to do standard tiles, there is a couple of ways to do it - the most laborious way would be to remove all the tile and and fasten to the beam. But the way Sharp suggests that we do it is basically retrofiting so we back out just the tiles necessary where we need to make our attachments. Anderson Hoke: You can pull one or two or 4 tiles right where you need to make the connection. You can pull out just a few tiles but at that point you can either install a standoff you want a longer one than this and flash around it, the tile institute would like to see flashing at the level of the under lament. That is interwoven with the lament and another flashing at the tiles - double flashed, that is the way any type of pipe is supposed to be flashed coming from tile but actually the way Sharp suggested you do it one of the leading manufacturers of PV is to drill a hole in the tile and they have a product fits through the roof - drill a hole in the tile and put the tile back down over their product and they have a combination of chalking and buel tape (?) method they use to seal the hole. And you can mount your PV on top of that, some really don't like that method but that is what Sharp is recommending. John Shaw: Specific to that type of installation so basically retrofiting over a tile roof is that it is rather laboriousin Colorado where we have to deal with 90 to 136 MPH winds so we typically need more attachements than other parts of the country. For a 4 kilowatt system that might cover 350 sq ft we might have 36 attachments so that means 36 different points on the roof where we need to remove one to 4 tiles locate the rafter drill the tile replace the tile chalk buelded (?) etc, long story short Sharp tells us that in at least in California we need to be collecting about $2 more per watt and considering that the price in Colorado for standard efficiency panels is about $7.50 a watt all inclusive including tax, you are looking at increasing it from $7.50 to $9.50 and that is more than 20%. |
 | Are Solar Panels Going To 300 Watts Soon? http://www.solardave.com/index.php/are-solar-panels-going-to-300-watts-soon-video/ This is my 2nd video interview with John Shaw Project Engineer Bella Energy of out of Louisville Colorado. SolarDave: Are Solar Panels Going To 300 Watts Soon? John Shaw: Absolutely, any manufacturer can do that right now. You shouldn't really look at how many watts a panel has - rather how many watts per square foot can be attained. Behind you is a Sanyo 200, if you increase the foot print of that panel by 50% it is a 300 watt panel. The reality is what you need to be looking at to measure the level of progress of the technology is how many watts per square foot. Instead of thinking will there ever be a 300 watt panel - surely there will be even next year. To get at the point of your question is do you ever think we will be ever to achieve a 300 watt panel in 15 square feet? And yes, I do. Right now standard efficiency panels are in the ballpark of about 12 watts per square foot, it ranges from 10 to 13. Standard efficiency panels Evergreens, Sharps, Kyocera, Shot (?), Suntech etc. Keep in mind this is the residential affordable panels, NASA works with panels that are about 30 watts per square foot but you are talking a million bucks a panel. Then there are high efficiency panels of the ones we know of are SunPower and Sanyo. And Sunpower and Sanyo are approximately 15 watts per square foot. Both are very good products. Sanyo I believe has a little bit of an edge because they has an amorphous or thin film rap around the silicon cell which allows them to maintain high production in high heat. One more reason and I will tie this in. The Sanyo's are shipped with a minus 0 and a plus 5 percent so when you buy a 200 watt Sanyo panel you will get hypothetically in standard test conditions 75 degrees at sea level you will get 200 watts or up to 210 watts. All other panels including specifically Sunpower are + or - 5%, so you could buy a 210 watt Sunpower cell and it could actually perform at 199 watts where you could buy a 200 watt Sanyo cell it could perform at 210 watts, but no less than 200 watts. So that and the fact the Sanyo's will out perform Sunpower apples to apples same azimuth and pitch in high heat because of this amorphous or thin film rap 10% in high heat peak days peak hours - we feel Sanyo is a better panel. But I have to say that Sanyo's are more expensive than Sunpower. We can't touch the Sunpower price, we can touch it with standard efficiency panels - blow it out of the water with standard efficiency panels. But if you are talking about high efficiency panels and high efficiency I think Sanyo is a better panel but the Sunpower is definately a better price. |
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