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Browsing the "cheap" Tag

Making Cheaper and More Efficient Solar Cells with Copper

September 8th, 2011 | by Charis Michelsen

There are two ways to lower the cost of producing energy through photovoltaics – more efficient solar cells (more power per square foot) and lower production costs (lower cost per square foot). The ETAlab of the Fraunhofer ISE has devised a way to do both simultaneously. The research team in the laboratory for new solar cell structures and processing steps has not only made the solar cell contacts out of 100% cost-effective materials (replacing expensive silver with cheaper copper and nickel), but the process also increases the efficiency of the solar cell to a very respectable 21.4%


Real Solar Breakthrough Could Clean Panels With Less Water

December 10th, 2009 | by Susan Kraemer

Solar power is one of the solutions to stop climate change; by ending fossil fuel use, yet ironically, is itself constrained by climate change that is creating increasing desertification. Water is most scarce in the desert; What's more: it's getting worse throughout the Southwest, including California, right where insolation is best for maximum solar yield



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