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"With growth rates in most key metrics exceeding 100%, SolarCity  seemed like the last company that would need to engage Groupon  to hock its products. The installer of rooftop solar systems at"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2014/06/05/why-solarcity-needed-to-offer-a-groupon/20907441/>