An apparatus and method for mounting a solar panel array on a surface is disclosed. The solar panel array includes a plurality of solar panel modules and a hybrid solar panel module mounting assembly. The hybrid solar panel module mounting assembly includes a component of a rail-based mounting system and a component of a rail-less mounting system. At least one of the plurality of solar panel modules is mounted on the component of the rail-based mounting system and at least one of the plurality of solar panel modules is mounted on the component of the rail-less mounting system.