The solar industry continues to grow nationwide with Arizona adding 67 megawatts during the first quarter of the year, blowing past expectations the industry would suffer from President Trump's steep tariffs imposed on solar panel imports, a new report finds. The report, conducted by GTM Research and the Solar Energy industries Association, found the U.S added 2.5 gigawatts of solar PV and had a 13 percent year-over-year growth.