| http://www.w3.org/ns/prov#value | - At the moment, we can certainly get more efficient than the typical PV unit that goes on rooftops, but the prices have come down so quickly that there is a significant moving target that has scared away a lot of investors.In 2013, U.S. solar firms received just $92.2 million in series A and B financing, down from $164 million the year before; that compares with 2008 when the industry saw peak $1.
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