Solar Panel Presentation
Transcript: Basically, silicon has 4 out of the possible 8 valence electrons in its outer shell, when two silicon atoms bond together, it creates a very solid bond, as the outer shels of both atoms will be filled (this bond is known as a crystalline structure. However pure silicon compounds are not very good conductors, as the bond is so tight that there is no room for electrons to move, scientists have discovered that when the silicon used in solar panels has impurities it is much better to create the necessary impurities, silicon is combined with other elements, sometimes phosphorous Phosphorous is one of the most popular elements for this process because it has 5 valence electrons, the outer shell of the silicon becomes filled and then the extra electron is left to conduct electric currents, this ectra electron is called a free carrier the average American household uses 30160 watts of energy daily Types of solar panels A flexible thin-film solar panel, is able to have its shape manipulated, unlike a ridged thin-film solar panel. The solar cells are laminated to a colorless fluoropolymer on the front, and a binding polymer on the backside. This type of solar panel has only become available in 2008, but is not cost-effective enough to be a an option for the general public in this type of model, the module and cell are manufactured on the same production line, as suggested by the name, these solar panels are ridged, and do not bend or curve. The solar cells in this type of solar panel are laminated to a sheet of glass Scientists have determined that 25 degrees Celsius (77 Fahrenheit) is the ideal temperature for solar panels. the actual voltage output of the panel changes as local weather, temperature and conditions change. Therefore there is no one specific output. Many companies offer a ten year warranty that The Basic Formation of a solar panel Meyers, Glenn. "CleanTechnica." CleanTechnica. N.p., 30 Sept. 2011. Web. 20 May 2013. <http://cleantechnica.com/2011/09/30/solar-basics-how-do-solar-panels-work/>. Moll, Eric. "How Many Watts of Power Does the Average House Use Per Day? | EHow." EHow. Demand Media, 08 Oct. 2010. Web. 29 May 2013. <http://www.ehow.com/facts_7308930_many-house-use-per-day_.html>. "Solar Panels." Homedepo. N.p., n.d. Web. 29 May 2013. http://www.homedepot.com/webapp/catalog/servlet/Search?storeId=10051 "Solar Energy Statistics." Statistic Brain RSS. N.p., n.d. Web. 29 May 2013. <http://www.statisticbrain.com/solar-energy-statistics/>. "CleanTechnica." CleanTechnica. N.p., n.d. Web. 29 May 2013. <http://cleantechnica.com/2011/09/30/solar-basics-how-do-solar-panels-work/> A solar panel is a panel(duh) that is made by placing non-reflective glass over a silicon compound, creating a photovoltaic panel that can take in photons from the sun and create electrical energy 80% as they wear, solar panels are expected to go down .5% energy output every year Performance and Upkeep Ridged thin-film modules for $349.99 at the home depot, you can purchase a 250 watt solar panel. They are not extremely affordable currently. They also have maintainance costs, extreme weather and everyday accidents can damage a solar panel One approach we can take to the current problem is to explore alternative energy sources, allowing us to move away from harmful coal emissions and look at more cost-effective programs in the long run Our world very clearly has an energy crisis, what steps can we take to reduce emissions harmful to our earth, while still maintaining the amount of power our society consumes, that still fits into the economic system Possible solutions Bibliography Flexible thin-film modules the solar panel will function at 90% at least of advertised voltage, and 25 years at at least More Specifically... ALTERNATIVE ENERGY What Does A Solar Panel Cost Electric Cars, hydrogen fuel cells,wind turbines, dams, nuclear power, there are so many different ideas as to what will solve this problem. The source of alternative energy I'm going to speak about is the sun, more specifically, solar panels