photovoltaic power cycle
DESCRIPTION
Jacob Rossi. Photovoltaic Power Cycle. The Solar Cell. Conversion of sunlight into electricity via the Photovoltaic Effect. Photovoltaics in use today. Photovoltaics at . Suniva (Prof. Ajeet Rohatgi ). Solar Decathlon. Solar Jackets. What it’s made of:. - PowerPoint PPT PresentationTRANSCRIPT
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PHOTOVOLTAIC POWER CYCLEJacob Rossi
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The Solar Cell
Conversion of sunlight into electricity via the
Photovoltaic Effect
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Photovoltaics in use today
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Photovoltaics at
Solar JacketsSuniva (Prof. Ajeet Rohatgi) Solar Decathlon
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What it’s made of:
Oops: The photovoltaic was accidentally discovered at Bell Labs
when impurities were added to Silicon semiconductors.
+Impurities:
CopperGoldSilverAluminumIndiumSeleniumSulfur
In the most basic form, it’s really similar to normal semiconductor materials:
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The Unfortunate RealityToday’s best photovoltaic cells have a power cycle efficiency of only
25-30%But, tomorrow’s could approach the theoretical limit of
50-80%
Why?Because of some quantum energy stuff, there exists a “thermodynamic efficiency limit.”
Basically, lots of it gets converted into kinetic energy (heat). So don’t worry, it doesn’t break the 1st Law.
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But it’s all good
Even with current technology, the U.S. could become completely independent from oil by building a solar power plant in the Southwest.
Its size? 30,000 sq. mi.