NREL aiming to bring HVPE to Earth – hoping for 20-80¢/W
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NREL aiming to bring HVPE to Earth – hoping for 20-80¢/W

The researchers at the US Department of Energy’s National Renewable Energy Laboratory (NREL) are trying to bring back, and refine, a solar cell technique from the 50-60s to help make the same solar cells as are on NASA's Mars rovers. The technique makes solar cells from gallium arsenide that are already hitting 25.3% efficiency. David Young, a senior scientist with expertise in silicon solar cells who joined NREL in 2000, says: You can only buy gallium arsenide cells if you’re willing to pay $100-300 a watt NREL wants to bring that number down to 20-80¢/W. When compared to solar cells today,…
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Recapture Rapture: Can Revised Tax Credit Policies Attract More Capital to Solar? Michael Mendelsohn’s picture

For developers trying to monetize the federal tax benefits for a given project, finding a tax equity partner can be a lonely process. Tax equity investors consist of a limited pool of suitors—investment bankers and a few other firms—who can tolerate the array of risks associated with this type of investment, including: Current and future tax liability (that enables use of a project's tax credits), The creditworthiness of the power purchaser A shifting tax policy environment [1]. Investors also tend to be put off by IRS rules that limit the resale of solar assets. Investors claiming the investment tax credit…
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