A new report released today by SEIA and GTM Research shows that solar energy continues to be one of the fastest growing industries in the country. While the overall U.S. economy grew at a sluggish 1.8% during the first three months of 2011, the domestic PV industry grew at 66% compared to the first quarter of 2010. Domestic manufacturing of PV modules grew at 31% compared to 2010. In total, there is now enough solar energy installed in the U.S. to power nearly half a million homes.