Module mounting system for a solar structure

A module mounting assembly for coupling a solar module to a torque tube, the torque tube having a top tube surface, a first side tube surface, a second side tube surface opposing the first side tube surface, and a bottom tube surface, the module mounting assembly comprising:

• a hat rail having a top rail surface, a bottom rail opening, opposing side rail surfaces, first connection points and second connection points;
• a first vertical member pivotably attached to the hat rail at the first connection points, the first vertical member capable of being pivoted inward about a first axis defined by the first connection points through the bottom rail opening to at least partially reside within a first internal portion of the hat rail, the first vertical member capable of being pivoted outward to rest flush on the first tube side surface of the torque tube during installation, the first vertical member having one or more first retention features;
• a second vertical member pivotably attached to the hat rail at the second connection points, the second vertical member capable of being pivoted inward about a second axis defined by the second connection points through the bottom rail opening to at least partially reside within a second internal portion of the hat rail, the second vertical member capable of being pivoted outward to rest flush on the second tube side surface of the torque tube during installation, the second vertical member having one or more second retention features;
• a locking mechanism configured to cooperate with the one or more first retention features and the one or more second retention features to secure the first vertical member against the first tube side surface of the torque tube and the second vertical member flush against the second tube side surface of the torque tube.