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.

A frame includes a support structure made up of profiles for supporting photovoltaic panels, and which has two lateral sides; and at least one reinforcement element mounted in correspondence with the corresponding lateral side thereof for supporting additional loads to the weight of the cells. It further includes connection means for connecting to a torsion tube. In one exemplary embodiment the reinforcement element is a solid gusset from which the lateral sides are suspended, as well as the connection means include upper and lower clamps with a shape adapted to the torsion tube to avoid relative rotation, and which are tightened against the torsion tube by means of bolts which pass through the clamps and corresponding nuts, the upper clamp comprising lateral grooves to fit the reinforcement elements.

A frame includes a support structure made up of profiles for supporting photovoltaic panels, and which has two lateral sides; and at least one reinforcement element mounted in correspondence with the corresponding lateral side thereof for supporting additional loads to the weight of the cells. It further includes connection means for connecting to a torsion tube. In one exemplary embodiment the reinforcement element is a solid gusset from which the lateral sides are suspended, as well as the connection means include upper and lower clamps with a shape adapted to the torsion tube to avoid relative rotation, and which are tightened against the torsion tube by means of bolts which pass through the clamps and corresponding nuts, the upper clamp comprising lateral grooves to fit the reinforcement elements.

There is provided a solar power generator having a variable shape which can secure a maximum solar power generation area by being unfolded horizontally and upward in the case of performing solar power generation and can be transformed to have a minimum volume by being transformed into a box shape in the case of not performing solar power generation. The solar power generator includes a base frame, four solar panel members for forming a box which are respectively coupled to four sides of the base frame, a rotation drive source for rotating each of the four solar panel members, a tube member, a lower surface of which is fixed to a center portion of an upper surface of the base frame, an air injection and discharge part, a top plate for the tube member, and a plurality of solar panel assemblies for tube member sidewalls.

There is provided a solar power generator having a variable shape which can secure a maximum solar power generation area by being unfolded horizontally and upward in the case of performing solar power generation and can be transformed to have a minimum volume by being transformed into a box shape in the case of not performing solar power generation. The solar power generator includes a base frame, four solar panel members for forming a box which are respectively coupled to four sides of the base frame, a rotation drive source for rotating each of the four solar panel members, a tube member, a lower surface of which is fixed to a center portion of an upper surface of the base frame, an air injection and discharge part, a top plate for the tube member, and a plurality of solar panel assemblies for tube member sidewalls.

A photovoltaic system (200) is described. The photovoltaic system comprises a plurality of photovoltaic arrays (12) comprising first (112A, 112B), and second (212) groups of photovoltaic arrays arranged in an interleaved fashion within a selected region. Photovoltaic arrays of the first group are mounted with a selected fixed tilt angle, and photovoltaic arrays of the second group are located between photovoltaic arrays of said first ground and mounted with a selectively varying tilt angle, thereby increasing land coverage ratio of said photovoltaic system.

A photovoltaic system (200) is described. The photovoltaic system comprises a plurality of photovoltaic arrays (12) comprising first (112A, 112B), and second (212) groups of photovoltaic arrays arranged in an interleaved fashion within a selected region. Photovoltaic arrays of the first group are mounted with a selected fixed tilt angle, and photovoltaic arrays of the second group are located between photovoltaic arrays of said first ground and mounted with a selectively varying tilt angle, thereby increasing land coverage ratio of said photovoltaic system.

An apparatus includes a rotating pole, a first set of photovoltaic modules; and a second set of photovoltaic modules. The second set of photovoltaic modules do not rotate with the rotating pole.

An apparatus includes a rotating pole, a first set of photovoltaic modules; and a second set of photovoltaic modules. The second set of photovoltaic modules do not rotate with the rotating pole.

In an example, the system has a mechanical isolator comprising an elastic material configured to separate the panel rail from the torque tube cause destructive interference with a natural resonant frequency of the system without the mechanical isolator to reduce a mechanical vibration of the system.