The pergola system has been developed as a universal PV modules mounting system for the pergola strucutre .It can be assembled to be the main structure of a pergola quickly and easily via the innovated aluminum Universal Rail,the SS Rail Connector,the Quick Clamp and the SS Wall Bracket ,etc Meanwhile ,the patented Z modules and Clamp kits can be perfectly mount the PV modules on the top of a pergola system . Additionally ,according to your special demand,there are several optional products can be used ,such as the strap anchoring plate,the hook for the PVC side and the angle connector.