This is project we did in Medicine Hat Alberta, Southland school is an new K-6 and utilizes 123 Trina Solar panels with 5 Pro harvest inverters. This system is 35.6KW and uses a ballast system to hold it down on the roof. The blocks are engineered for this system so the panels don’t go flying off the roof. A great install method if the roof is flat and no penetrations are wanted.