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February 25th, 2010
Scaling Up Solar Power
Abstract:
In 2006, semiconductor-equipment giant Applied Materials got into the solar-power market in a big way. At the company's headquarters in Santa Clara, CA, you can see just how big: a ceiling-mounted crane lifts a piece of glass the size of a garage door onto a table for testing. The glass sheet, covered with a thin orange film of amorphous silicon, is destined to become one of the world's largest solar panels.
Applied Materials developed the equipment to produce these extremely large photovoltaic panels in order to lower the price of solar power--crucial if solar is to compete on price with fossil-fuel electricity. The value of a solar installation comes down to the cost of each watt of power it can produce over the lifetime of a panel, and Applied Materials' panels bring down costs in two ways. The equipment for manufacturing thin-film solar cells operates more efficiently when the panels are bigger. And larger modules need less hardware and labor to wire them together and support them.
Source:
technologyreview.com
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