A purlin in photovoltaic mounting systems is a horizontal beam or bar that serves as the primary support structure for the solar panels. These structures are typically made of steel or aluminum and must withstand wind, snow, and other environmental stresses. Optimizing purlins can improve energy output by up to 32%, reduce installation time, and lower structural costs. Whether it's a ground-mounted solar farm or. Let's face it – most people get starry-eyed about photovoltaic panels' efficiency ratings while completely ignoring their purlin connection method. It's like buying a Ferrari but using bicycle tires. Hat Purlins ensure even weight distribution, reducing stress on panels, while C Purlins. The solar purlins are made from high strength Q235,Q345 steel plates with excellent tensile and torsional properties.