A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction.

A mounting assembly may include an arced connecting member that includes a first drive chain along a bottom surface of the arced connecting member, a second drive chain positioned adjacent to the first drive chain, and a third drive chain in a gap between the first and the second drive chains. The mounting assembly may include an intermittent-motion drive system that has a drive wheel with a nub extending from a lateral surface of the drive wheel, the nub being shaped to interface with notches included along the third drive chain. The intermittent-motion drive system may include a first and a second protrusion shaped to interface with surfaces of the first and second drive chains, respectively. Rotation of a drive axle extending through the drive wheel may affect rotation of the drive wheel, rotational movement of the nub extending from the drive wheel, and movement of the arced connecting member.

A mounting assembly may include an arced connecting member that includes a first drive chain along a bottom surface of the arced connecting member, a second drive chain positioned adjacent to the first drive chain, and a third drive chain in a gap between the first and the second drive chains. The mounting assembly may include an intermittent-motion drive system that has a drive wheel with a nub extending from a lateral surface of the drive wheel, the nub being shaped to interface with notches included along the third drive chain. The intermittent-motion drive system may include a first and a second protrusion shaped to interface with surfaces of the first and second drive chains, respectively. Rotation of a drive axle extending through the drive wheel may affect rotation of the drive wheel, rotational movement of the nub extending from the drive wheel, and movement of the arced connecting member.

A solar tracking system comprises multiple solar panel modules forming a grid of solar panel modules, wherein the multiple solar panel modules are orientatable to a solar source independently of each other; and a control system configured to orient each of the multiple solar panel modules to the solar source independently of each other based on a performance model to optimize an energy output from the grid of solar panel modules, wherein the performance model predicts an energy output from the grid of solar panel modules based on a topography of the area containing the grid of solar panel modules and weather conditions local to each of the solar panel modules.

Fixed-tilt solar arrays constructed from screw anchors. A row of truss foundation is installed, with each foundation consisting of a pair of adjacent angled truss legs. A truss cap or adapter joins the legs and provides a support structure to support a rail that in turn supports purlins extending between adjacent, spaced apart truss foundations. Solar panels are attached directly to the purlins using clamps or other conventional mounting systems.

Disclosed herein is a technique of configuring flexible photovoltaic tracker systems with high damping and low angle stow positions. Under dynamic environmental loads implementing a high amount of damping (e.g., greater than 25% of critical damping, greater than 50% of critical damping) or a very high amount of damping (e.g., 100% or greater of critical damping, infinite damping) enables the flexible tracker system to prevent problematic aeroelastic behaviors while positioned in a low stow angle. The disclosed technique is further applied to a prototyping process during wind tunnel testing.

A method may include obtaining a normal set point of a solar panel and a wind velocity measurement corresponding to wind that affects the solar panel. The method may include determining an allowable range of tilt angles according to a first lookup table that describes a relationship between the wind velocity measurement and the allowable range of tilt angles. The method may include identifying whether the normal set point of the solar panel is outside of the allowable range of tilt angles, and responsive to identifying that the normal set point of the solar panel is outside of the allowable range of tilt angles, determining a temporary stow set point. The method may include rotating the solar panel to the temporary stow set point.

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 and other mechanical features 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.

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 and other mechanical features 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.

One embodiment includes a device for solar tracker systems. The device includes a first purlin including a first mating surface configured for frictional attachment to a first side of a torque tube. The first purlin further including a first linear shaped top surface configured for mounting a first solar module. A second purlin includes a second mating surface configured for frictional attachment to a second side of the torque tube. The second purlin further including a second linear shaped top surface configured for mounting a second solar module. The first purlin and the second purlin connect to one another with a fastening clamp that is configured for holding the first purlin and the second purlin against the torque tube.