Bearing adapters for use with truss foundations supporting mechanically balanced single-axis trackers. The bearing adapter joins the free ends of a pair of adjacent truss legs to form a rigid A-frame shaped foundation structure. A bearing is formed in an upper portion of the bearing adapter to allow a torque tube to be suspended from a pin in the bearing and to swing through an arc bounded by the bearing adapter. The bearing may have a catenoid shape to compensate for misalignment in multiple directions.

Support platforms for one or more solar panels and systems and methods for securing support platforms are provided. In one embodiment, a frame of a support platform includes a plurality of support legs, each leg including a shoe plate. One or more toggle anchors with rod and/or cable are provided that include an anchor portion and a toggle portion pivotally coupled to the anchor portion, and a rod and/or cable is coupled to the toggle portion. Each anchor is driven into the ground with a driving rod such that an exposed end of the rod and/or cable extends from the ground. The driving rod is removed, and the rod and/or cable is pulled to deploy the anchor, and which the anchor is pull tested and measured in real time soil conditions whereupon the exposed end is coupled to the shoe plate of one of the support legs to apply a desired tensile force between the exposed end and the anchor to secure the support leg and, consequently, the support platform relative to the ground.

An A-frame-shaped truss foundation system for a single-axis tracker with a bearing assembly sitting atop a pair of adjacent angled truss legs joined together with an adapter so that the axis of rotation of the tracker is aligned with a work point of the A-frame. Several such foundation systems are arranged along a North-South row to support a tracker torque tube.

The support device for a rotating shaft of a solar tracker comprises a support plate (2) fixed to an upper end of a support column (1), and a clamp (3) comprising a lower clamp section (4) with a foot (7) fixed to the support plate (2) by means of screws (43) and an arcuate seat (9) for a bearing (52), and first and second opposite side clamp sections (5, 6) having upper ends at which there are arranged respective connecting elements (10, 11) connectable in an articulated manner to one another and lower ends at which there are arranged respective fixing and clamping elements (12, 13) configured for fitting onto the foot (7) and for being tightened against one another and against the lower clamp section (4) by means of a tightening screw (14).

Tracking systems for adjusting a photovoltaic array are disclosed. In some embodiments, the tracking system includes an actuator that moves one or more links to cause the array to rotate. The tracking system may be disposed below a torque rail of the tracking system. The actuator may be a slew drive that retracts or extends the one or more links to cause the array to rotate.

An A-frame-shaped truss foundation system for a single-axis tracker with a bearing assembly sitting atop a pair of adjacent angled truss legs joined together with an adapter so that the axis of rotation of the tracker is aligned with a work point of the A-frame. Several such foundation systems are arranged along a North-South row to support a tracker torque tube.

A single-axis tracker supported by multiple A-frame-shaped single-truss foundations that translate lateral loads into axial forces of tension and compression, and at least one truss foundation supporting the torque tube drive motor or other tracker component subject to axial loads to provide support for lateral loads as well as loads oriented along the axis of the torque tube.

A two-piece truss leg with an articulating coupler for an A-frame-shaped truss foundation system for single-axis trackers. The coupler is attached to the head of each screw anchor to enable it to be driven. A connection portion extends above the coupler and is received within an open end of an upper leg to allow the upper leg to be misaligned with respect to it corresponding screw anchor.

Solar trackers that may be advantageously employed on sloped and/or variable terrain to rotate solar panels to track motion of the sun across the sky include bearing assemblies configured to address mechanical challenges posed by the sloped and/or variable terrain that might otherwise prevent or complicate use of solar trackers on such terrain.

An apparatus and method for mounting a solar panel in a solar panel mounting assembly is disclosed. The solar panel mounting assembly includes a mounting bracket and a helical drive, where the mounting bracket is vertically adjustable by the helical drive. The helical drive engages with a stanchion that is variably positioned along a base member that is fixed to a roof.