SOLAR ENERGY. By: Sam Levinson, Maya Patel, Ariel Ackerlund , Daniel Petronis , Heather Lassiter . Solar energy currant technology . Solar energy only works in some locations because there must be direct sunlight for it to work at its full potential.
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By: Sam Levinson, Maya Patel, Ariel Ackerlund, Daniel Petronis, Heather Lassiter
This Graph shows how much solar energy was produced in 2012. May is normally a sunny month so it makes sense that the most solar energy would be produced in may.
This graph shows the amount of energy used in different forms.
In a solar panel there are photovoltaic (PV) cells. Photo means light, and voltaic means electricity. These cells convert sunlight directly into electricity. These cells are put into a frame know as a solar panel. Photovoltaic cells have things called semiconductors such as silicon, which is used most commonly. When light shines on the cell a part of it is absorbed inside the semiconductor. Now the energy of absorbed light is transferred to the semiconductor. The energy creates electrons and allows them to move freely. PV cells also have an electric field that forces electrons freed from the light to flow in a certain direction. This is a current, by putting metal contacts on top of and below of the PV cell, the current can draw of the electric cell so we can use its energy.
Three ways it is Used
Solar Energy is harnessed in solar panels which takes up a lot of space
Most panels are located on top of buildings
All utility- scale energy facilities require relatively large areas for solar radiation collection when used to generate electricity at utility- scale.
Construction of solar facilities on large areas of land requires clearing and grading and results in soil compaction, potential alteration of drainage channels.
Although solar energy is inexpensive and useful, some solar energy is wasted.