Patent attributes
A racking system is configured to install at least one photovoltaic panel on a rooftop. The racking system includes a plurality of rails. A splice bar is connected the plurality of rails and configured to mechanically strengthen the plurality of rails. A ground lug is attached to an extrusion of a side channel on each of the plurality of rails by sliding the ground lug through a rail opening. A ground wire is held in a serrated opening for safely grounding the racking system. A clamp is attached to a top channel of at least one rail such that the at least one rail and the at least one photovoltaic panel are operatively coupled to the clamp and such that the clamp is under pressure due to a spring but is able to freely rotate around a longitudinal axis.