For those who have to
most beneficial solar power systems, you must seriously consider the back-sheet area of the panels.
A back-sheet may be the layer with the screen in which the solar cells are laid out. The other side of the back-sheet, specifically towards the top middle area, will be the junction box. A back-sheet is often manufactured from polyvinyl fluoride or P.V.F. which is similar to P.V.C. or polyvinyl chloride, the fabric employed in conduits and water pipes. P.V.F. is often found in airplane and vehicle interiors.
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DuPont, a us chemical company founded in 1802, created in the 1940s the polyvinyl fluoride (P.V.F.) polymer. After around A decade, they started developing products depending on their invented material. 20 years after invention, the Tedlar brand name was finally registered by DuPont in the usa. Eventually, Tedlar had become the leading range of material for that back-sheets of solar power systems and is particularly thought to be the standard within the other industries it serves.
Polyvinyl Fluoride (P.V.F.) has excellent non-stick properties which makes it an easy task to clean. It's also safe from nature's elements and will prevent water from penetrating the cells. Additionally, it will a good job keep water vapor from getting into. Another essential feature of P.V.F. is its low thermal resistance which can be crucial in the operations in the cells. Low thermal resistance ensures that the material is capable of doing resisting heat from transferring on the solar cells which can modify the layers that compose it. This is also precisely why some solar panels don't perform needlessly to say once the temperature rises above 25 degrees Celsius (77 degrees Fahrenheit). All solar power panels inside their data-sheet have a very term called "temperature coefficient pMax" which determines the percentage of reduced performance for each and every degree added above 25 degrees Celsius. If your "temperature coefficient pMax" is -0.47% then your maximum energy your cell is reduced by 0.47% for each degree boost in temperature (Celsius). Conversely, when the climate is below or at 25 degrees Celsius, the solar cells perform better and may increase above its rated output.
Creating a success efficient solar power panels requires good quality materials including Tedlar but if you are making one by yourself, a different can be just a plain ancient plywood. Painting this plywood having a protective coating such as latex acrylic paint ought to do the task in resisting UV and preventing water from getting in. Plywood can also be non-conductive but can do not have the low thermal resistance that P.V.F. has.