02 Nov '13, 10am

Listen Up: #Solar Energy #Technology #Innovations #Renewable #Energy @BarryCinnamon

With apologies to Cliff Clavin's Theory of Beer, here's my understanding of how their technology works. When photons from sunlight hit atoms in the compounds in a solar cell they kick off electrons. Some of these electrons are hot and fast — they escape through the crystal matrix of the cell and make it out to the wires, generating useful electrical current. But the cooler, slower, mellower electrons don't have enough energy to make it out of the matrix — they get stuck and usually die. Ultrasolar has developed an electronic circuit (ideally built into an inverter) that passes a very high frequency signal backwards through the DC wires into the solar module and cells. The slower electrons catch these waves and are turned into hot and fast electrons for long enough to escape the crystal matrix and generate a useful current. So listen to this week's Energy Show on Renewable ...

Full article: http://www.renewableenergyworld.com/rea/news/article/2013...

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