News & Articles rheinland TUV Rheinland PTL to Announce New Performance Check, Quality Benchmark Test Services at Intersolar 2013 TEMPE, Ariz., July 2, 2013 /PRNewswire/ -- At Intersolar 2013, booth #7539, TUV Rheinland PTL will be presenting new, practical testing services to evaluate photovoltaic modules delivered to and operating ... July 2, 2013 - PR Newswire via Yahoo! Finance