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Transcript of Solar
What type of structure is solar electricity generated in?
How is the electricity generated?
Whats the difference
between renewable and non renewable energy
These are located...
They are located in places that have lots of sun
They are not mainly found in a hills shade
Who uses this energy?
How much of the electricity generated in the US. comes from solar energy?
renewable energy= is energy that will never run out no matter how much you use it. It will be replaced in a persons lifespan. Renewable energy is also better for the environment, such as solar.
non renewable energy= is energy that can run out or be used up. These usually come from the ground and will take longer than a human lifespan to replace.
Solar energy is renewable.
by : Katelyn Coates
and Rachel Martin
Thanks For Watching
There are 3 types of collectors for solar energy. These are; flat-plate collectors, passive collectors and focusing collectors.
ex; wind and trees
ex; minerals and water
Jack Challone, Energy, 1993, Dorling Kindersley, 232 Madison avenue, book
Chris Oxlade, Solar Power, 2012, Heinemann Library, Chicago, Illinois , book
"A solar panel has 2 plates of silicon: 1 modified to be receptive to electrons, 1 modified to easily release electrons. When a photon hits the surface where these plates meet, it knocks an electron free.
The electron then moves toward the attractive side. This sets off a chain reaction of electron movements through metal plates and attached wires. This is called and electrical current." -Washington Univerity
University of Washington, the source of our power, sun in Seattle, University of Washington, PDF.
most commonly used. Arrays of solar panels arranged in a simple plane. They have an output that is directly related to variables including size, facing and cleanliness. These variables affect how much radiation falls on the collector. ( Brown, 1 )
Hochstetler, Philip."Solar Electric Tractors."
Solar Electric Tractors
.N.p., n.d. Web .06 Jan. 2014
"These collectors absorb radiation and convert it to heat natrally, without being designed and built to do so." says Eric Brown
These are flat planed with optical devices that help them maximize the radiation that falls on its focus. They are not used often but can produce far greater amounts of energy at a single point than flat-plane collectors. Although they produce a lot of energy, they also lose radiation, were flat-plane collectors do not. Another problem that focusing collectors have is that the silicon components lose their efficiency in hot temperatures and can even get permanently damaged.
Types of solar panels;
Brown, Eric. "An introduction to solar energy"
n.d. Web. 06 Jan. 2014
monocrystalline silicon panels;
They are the most efficient and most expencive
Polocrystalline silicon panels;
These have a lower silicon level than momocrystalline panels. They are good for roofs and small projects.
Thin film panels;
Because there is little silicon in them they are inexpensive to make and are used mainly for farm projects.
Bossong, Kenneth. "Wind, Solar, Biomass Provide All new U.S. Electrical Generating Capacity In January 2013"
Web. 24 Feb. 2013. o6 Jan. 2014
Family's, farmers and businesses use this energy for power.