A mounting bracket assembly is provided in which a mounting bracket includes a first attachable bracket piece and a second attachable bracket piece, a first fastener, a second fastener, and a third fastener. Each attachable bracket piece has a top member and a bottom member connected to the top member at an angle. The first clamp is attached to the top member of the first attachable bracket piece by the first fastener. The second clamp is attached to the top member of the second attachable bracket piece by a second fastener. The third fastener secures the bottom member of the first attachable bracket piece to the bottom member of the second attachable bracket piece. The mounting bracket defines a beam insertion aperture between the top members and the bottom members. The mounting bracket assembly may include a first integral grounding device located adjacent the top member of the first attachable bracket piece or adjacent the top member of the second attachable bracket piece. The first integral grounding device is configured to electrically bond a frame of an electricity generating device to the mounting bracket assembly. The mounting bracket assembly may further include a second integral grounding device configured to electrically bond a torque tube to the mounting bracket assembly