Sunlight is the most abundant energy source known to man: it powers solar cells, warms the air and is the essential energy for photosynthesis. PF Members offer innovative plans to utilize this valuable resource.
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Two basic technologies are used to harness solar power: photovoltaic devises and solar collectors. Photovoltaic devises utilize the conducting properties of certain materials like silicon. Electrons in these materials are freed by solar energy and are directed through an electrical circuit to power devises or sent to the grid. Solar collectors use lenses and mirrors to concentrate sunlight and directs it to a receiver transfers the heat to a fluid (usually air, water, or oil) flowing through the collector.
Still confused? Ask our solar expert.
How many windows are in the Empire State Building? Watch our Nightly Business Report segment to find out and learn about the building’s innovation retrofit.
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Lauren Hoenemeyer and Kimberly Kroll produced the crowd favorite at GW’s Student Film Festival with GW President Steven Knapp, White House Environmental Executive Michelle Moore, Jeff Nesbit of the National Science Foundation and Michelle Williams of Volkwagen. Watch>>
In his State of the Union address, President Obama called for an investment in clean technology. SunRun is one business that is leading the way to making solar affordable to everyone. Check out this conversation with the company’s Co-Founders. Watch>>