A solar power generator has: a frame securable to an underwater ground surface; a shaft supported by the frame; a casing floatable on a body of water and movably mounted to the frame via the shaft, the casing rotatable relative to the frame about a first axis defined by the shaft; a photovoltaic cell array secured to the casing; and a motor operatively connected to the casing for rotating the casing about the first axis to orient the photovoltaic cell array towards a sun in function of an azimuth of the sun.

A solar tracker system includes a photovoltaic panel and an actuator coupled to the photovoltaic panel and configured to actuate to rotate the photovoltaic panel around a base. A controller communicatively coupled to the actuator is configured to detect a direction from which wind is incident on the photovoltaic panel. Based on the direction from which wind is incident on the photovoltaic panel, the controller adaptively controls the actuator to set a stow position of the photovoltaic panel.

A solar tracker system includes a photovoltaic panel and an actuator coupled to the photovoltaic panel and configured to actuate to rotate the photovoltaic panel around a base. A controller communicatively coupled to the actuator is configured to detect a direction from which wind is incident on the photovoltaic panel. Based on the direction from which wind is incident on the photovoltaic panel, the controller adaptively controls the actuator to set a stow position of the photovoltaic panel.

In an aspect, the present disclosure describes a method comprising using at least one robot to fully autonomously position and assemble at least one solar module and its supporting structure at a sensed geolocation without aid from a user.

Fixed-tilt solar arrays constructed from screw anchors. In some cases, purlins are attached directly to truss legs. In others, they are attached to truss caps joining the free end of each truss leg. In still further ones, screw anchors are driven in rows and interconnected by a pair of hinged members, one of which provides a mounting plane for solar panels. Each screw anchor may serve as a connection point for the trailing hinged member of the first foundation and the leading hinged member of the next foundation. In still further cases, a hinged truss cap may be used to accommodate different tilt angles with the same foundation.

A system is provided. The system includes a tracker configured to collect solar irradiance and attached to a rotational mechanism for changing a plane of the tracker and a controller in communication with the rotational mechanism. The controller is programmed to store a plurality of positional information and a shadow model for determining placement of shadows based on positions of objects relative to the sun, determine a position of the sun at a first specific point in time, retrieve height information for the tracker and at least one adjacent tracker, execute the shadow model based on the retrieved height information and the position of the sun, determine a first angle for the tracker based on the executed shadow model, and transmit instructions to the rotational mechanism to change the plane of the tracker to the first angle.

A system is provided. The system includes a tracker configured to collect solar irradiance and attached to a rotational mechanism for changing a plane of the tracker and a controller in communication with the rotational mechanism. The controller is programmed to store a plurality of positional information and a shadow model for determining placement of shadows based on positions of objects relative to the sun, determine a position of the sun at a first specific point in time, retrieve height information for the tracker and at least one adjacent tracker, execute the shadow model based on the retrieved height information and the position of the sun, determine a first angle for the tracker based on the executed shadow model, and transmit instructions to the rotational mechanism to change the plane of the tracker to the first angle.

A stacking spacer for a photovoltaic module frame comprises a main body, extending in a longitudinal direction, a connecting member, extending in the longitudinal direction and protruding from the main body, adapted for being inserted in at least one lateral profile groove of the photovoltaic module frame, and two opposed support members, arranged on respective opposed longitudinal sides of the main body, extending in the longitudinal direction, wherein the two opposed support members have complementary forms, whereby at least two stacking spacers can be securely stacked on top of each other. Photovoltaic module frames and tracking device assemblies may include photovoltaic modules comprising such stacking spacers.

A stacking spacer for a photovoltaic module frame comprises a main body, extending in a longitudinal direction, a connecting member, extending in the longitudinal direction and protruding from the main body, adapted for being inserted in at least one lateral profile groove of the photovoltaic module frame, and two opposed support members, arranged on respective opposed longitudinal sides of the main body, extending in the longitudinal direction, wherein the two opposed support members have complementary forms, whereby at least two stacking spacers can be securely stacked on top of each other. Photovoltaic module frames and tracking device assemblies may include photovoltaic modules comprising such stacking spacers.

It is t an object of the present invention to provide an improved smart sun tracking systems that are expanding in three different directions, configured with multiple two-axis sun-trackers integrated with various single or step-aside double layers of hybrid Dual faces PV thermal panels to only two swiveling couplers in different directions with two driven main cables in closed loops (North-South and East-West), define the 4-dimension structure, and strong enough to withstand wind loading and the like without the structural reinforcement here to for required. Another object of the present invention is to provide an improved sun tracking systems for solar energy radiation receivers, which can be built from a minimum number of inexpensive parts and minimum maintenance. Additional objects, advantages and novel features of the invention will be set forth in part in the description which follows, and in part will become apparent to those skilled in the prior art upon examination of the following or may be learned by application of the invention. The objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims two electric motorized pulley attachments, connecting the closed loops cables to each 3-solar energy radiation receivers' to sub-assembly support beam, mounted on mast pillars at different lengths allow to provide a wide range of adjustments, i.e. wherein the 3-units of solar energy radiation receivers, reversing directions according to the seasons and when is needed. A clockwise and counter-clockwise electric motorized pulley, connected to dual direction main cables design is biased to maintain differential positions. When underneath the 3-units of solar energy radiation receivers connected central support beam which connected to swivel coupler and a pair of differential locations hooks. The smart sun-trackers system comprising multiple two-axis sun-trackers connected with cables in closed loops, provides required forms of multiple at least one or more 3-units of solar energy radiation receiver's mounted above sub-support beam assembly, when the cables are moving back and forth. The mechanism includes an electric motorized pulley shaft rotating in a different direction parallel to the cable portion to which the mechanism is attached. Because the cables connected in 2 different locations attached to the central support beam, allow the central main mast pillars swivel with the same cables length displacement following the movements which occur between all differential step-aside main mast pillars, respectively to North-South positions, providing the ne