PV assemblies for converting solar radiation into electrical energy, and methods of installation thereof, are disclosed herein. A PV assembly can include a mounting structure for mounting or supporting PV modules of a PV array. The PV assembly can include at least one PV module having several solar cells encapsulated within a PV laminate. A PV frame may at least partially surround the PV laminate. The PV assembly can further include at least one positioning or alignment device for facilitating alignment of PV modules in the array. The positioning or alignment device can include a support engagement feature for engaging the mounting structure and a module engagement feature for engaging the at least one PV module of the array. In various embodiments, the positioning or alignment device sets a predetermined distance between the mounting structure and at least one PV module.