Abstract: A solar tracking sensor and methods of tracking the sun. In one embodiment, the solar tracking sensor includes a housing, an inclinometer to output a signal indicative of the angle of the housing relative to the gravitational pull of the Earth, and first and second photosensors located on a first plane located within the housing. An opening on one side of the housing allows solar radiation to pass through the housing and reach the first and second photosensors. A difference calculating module is coupled to the first photosensor and the second photosensor. The difference calculating module determines a photosensor difference value using signals from the photosensors and outputs a photosensor difference value. The photosensor difference value can be used by a controller. The controller is coupled to the inclinometer determines whether the opening is aligned with the Sun based on the photosensor difference value and information or signal from the inclinometer.

Abstract: A solar tracking system and method that use a shielding tube that admits solar radiation and has an absorptive inner surface for absorbing the solar radiation that is incident on it. The system has a photodetector for generating a signal related to an intensity of solar radiation at a distal end of the shielding tube and a scan unit for periodically executing a certain scan pattern in an elevation angle El and in an azimuth angle Az of the shielding tube. A processing unit in communication with the photodetector determines an on-sun orientation of the shielding tube based on a convolution of the signal obtained while executing the scan pattern with a trained convolution kernel. The on-sun orientation thus found can be used to update the orientation of one or more solar surfaces, e.g., reflective or photovoltaic surfaces.

Abstract: The invention relates to a solar tracker having oleo-hydraulic cylinders that increase the rigidity of the system by keeping the two chambers of each cylinder pressurized, even while on stand-by. This makes the system more accurate, avoiding undesirable cylinder movement caused by oil compression. The system includes a circuit having at least one cylinder assembly (8,9), an oleo-hydraulic plant and a control system (5), wherein the oleo-hydraulic plant supplies the oil to the cylinders controlling the speed of movement of these latter, and the control system (5) supervises and controls the correct operation of the entire system and protects said system against possible accidents.

Abstract: A low profile heliostat with elongated louvered mirror segments is provided. Its envelope of revolution has the shape of a flat disc to enable heliostat fields with very high ground coverage ratio. The heliostat's disc-shaped footprint rotates around a substantially vertical axis (akin to a carousel). The short dimension of the mirror segments is drastically shorter than the disc's diameter. Embodiments are described in which the motion relies on two concentric rings, which are individually rotated around a vertical axis. The lower ring acts as a platform providing mainly azimuth tracking, carrying the upper ring. The differential rotation between the upper ring and the lower ring is translated into a rotation of the mirror segments around a second, perpendicular, axis and used for elevation tracking. Disc-shaped heliostat with D-shaped cut-offs are described, to facilitate the required maintenance access even in highly dense heliostat fields.

Abstract: A method includes collecting site specific data, collecting field data at a site of an array of photovoltaic members, determining a current tracked irradiance of the array of photovoltaic members, calculating predicted irradiance for multiple orientations based on the site specific data and the sensed field data, or sensing an actual irradiance for multiple orientations. The method further includes determining a maximum predicted irradiance from the calculated predicted irradiance or a maximum actual irradiance from the sensed irradiance. The method further includes comparing the maximum predicted irradiance or the maximum sensed irradiance with the current tracked irradiance, and re-orienting the array of photovoltaic members to an orientation having the maximum predicted or actual irradiance if the maximum predicted or actual irradiance is greater than the current tracked irradiance.

Abstract: A method is provided to track the sun. An omnidirectional sensor is used for acquiring sun's position. The sensor can track sun's position in an omnidirectional way. A controller is also provided to control the tracking. When the sun shines strongly, the sensor is controlled to track the sun's position. When the sun does not shine strongly, the tracking is stopped. Thus, the cost for tracking the sun's position is reduced and accuracy of the tracking is enhanced.

Abstract: A solar tracker assembly for mounting one or more solar tracking units, which can be adapted for use with various solar energy modules such as photovoltaic modules and heliostat mirrors, is provided. Each assembly comprises a frame of four sides connected at leg assemblies, each leg assembly being adapted for mounting a solar tracking unit. The frame may be configured as an oblique-angled, rhombus or diamond frame with a cross member extending between the closer-spaced leg assemblies. A set of frames may be arranged in the field with adjacent sides of adjacent frames being parallel, with spacing arms of predefined lengths interconnecting adjacent pairs of frames, to provide a desired staggered spacing.

Abstract: A solar concentrating system includes a heliostat having an actuator that adjusts a reflecting direction of a mirror reflector. An anemometer measures wind direction and wind speed. A controller generates and outputs a target angle command to the actuator in order to control the actuator. The controller generates the target angle command based on the current position of the sun and on the wind direction and the wind speed measured by the anemometer.

Abstract: The present invention provides an apparatus and method for solar tracking. The solar tracking sensor array and method so disclosed can be used with any device that requires a specific orientation to the sun for optimal operation. The system relies upon a sun tracking mechanism which includes a plurality of phototransistors configured in a particular manner. The apparatus can further be used with an analog sensor circuit which is also disclosed herein. Although the device and method are disclosed in conjunction with a solar tracking device, which includes the analog sensor circuit, a drive assembly, and a power source, these components may be used independently of one another.

Abstract: A system and method for optimizing at least one mirror of at least one CSP system is provided. The system has a screen for displaying light patterns for reflection by the mirror, a camera for receiving a reflection of the light patterns from the mirror, and a solar characterization tool. The solar characterization tool has a characterizing unit for determining at least one mirror parameter of the mirror based on an initial position of the camera and the screen, and a refinement unit for refining the determined parameter(s) based on an adjusted position of the camera and screen whereby the mirror is characterized. The system may also be provided with a solar alignment tool for comparing at least one mirror parameter of the mirror to a design geometry whereby an alignment error is defined, and at least one alignment unit for adjusting the mirror to reduce the alignment error.

Abstract: A multiplexed torque brake (MTB) system for preventing the accumulation of torsional forces at a center drive and thereby significantly reducing the design load requirements for trough frames of a corresponding solar concentrator assembly (SCA). In one embodiment, an MTB system for an SCA having a plurality of solar reflector frames spaced along a length of the SCA includes a plurality of brake mechanisms arranged at locations spaced apart from each other along the length of the SCA, each of the brake mechanisms coupled to a corresponding one of a plurality of supporting pylons and configured to constrain the solar reflector frames from rotating when subjected to torsional loads, the brake mechanisms adapted to transfer the torsional loads to the corresponding supporting pylons.

Abstract: A method is provided for controlling the alignment of a heliostat with respect to a receiver, wherein an image sensor device is arranged on a mirror device of the heliostat, wherein the heliostat is aligned by the image sensor device using image recognition in such a way that a first angle of a first vector pointing towards the sun, relative to a prescribed vector of the mirror device, and a second angle of a second vector pointing towards a prescribed target area of the receiver, relative to the prescribed vector, are in a relationship to each other which is dependent upon the prescribed vector of the mirror device, and wherein images of the sun and the prescribed target area and their position relative to the prescribed vector are determined.

Abstract: A system and method are provided for continuously reorienting a solar panel array while maintaining a substantially stationary footprint for the solar panel. A cylindrically shaped knuckle is provided that is formed with a bottom surface and a top surface that is slanted relative to the bottom surface at a slant angle ?. One end of an upper pole is positioned against the top surface of the knuckle, and one end of a lower pole is positioned against the bottom surface of the knuckle. An upper and lower motor respectively connect the knuckle to the upper pole and the lower pole. These motors are used to continuously rotate the knuckle at an angular velocity ? relative to the upper and lower poles. When the knuckle rotates, the upper and lower poles remain stationary to allow the solar panel to continuously reorient while maintaining a substantially stationary footprint.

Abstract: A solar energy power generation system generates AC electrical power from solar radiation through the use of parabolic troughs to capture the energy and a fluid turbine to convert the solar energy to mechanical energy. The turbine is directly coupled to a generator to produce AC electrical power.

Abstract: An alignment device for aligning solar cell modules of a solar tracking photovoltaic array relative to the sun. The alignment device may be mounted on at least one planar solar cell module so that an axis of the device is substantially perpendicular to the planar surface of the module. The device may include a convex lens at one end for focusing incoming rays of the sun into a focused beam, and a planar photodetector at a second end positioned so that the focused beam aligns on a predetermined point of the photodetector when the modules are correctly aligned. The instrument may also include a plurality of leads attached to the photodetector to provide a signal indicative of an angular misalignment of the at least one module.

Abstract: One embodiment of the invention relates to a light concentrator apparatus including a reflector with an open substantially hemispherical reflecting surface characterized by a radius R, and an aperture for admitting light onto the hemispherical reflecting surface. The light concentrator apparatus further includes a movable elongated light collector having a first end located proximal to the reflecting surface; and extending along a longitudinal axis in a direction substantially normal to the reflecting surface to a second end. The light concentrator further includes a tracker configured to move the first end of the collector to points proximal to the reflecting surface.

Abstract: The invention relates to systems and methods for controlling angular position of a pivotable platform relative to a radiation source. In one embodiment, an apparatus for controlling angular position of a pivotable platform relative to a radiation source includes a frame, a thermal actuation element coupled to the frame, a pivotable platform positioned between the radiation source and the thermal actuation element so as to at least partially block energy from the radiation source from impinging on the thermal actuation element, and apparatus for pivoting the pivotable platform in response to a thermally controlled deformation of the thermal actuation element.

Abstract: A solar energy alignment and collection system includes at least two solar energy receivers having a central focal point, with each of the at least two solar energy receivers generating an energy output. An actuation system is operatively coupled to the at least two solar energy receivers and is configured and disposed to shift the solar energy receivers along at least one axis. A control system, operatively linked to the solar receivers and the actuation system, senses the energy output of each solar energy receiver and shifts the actuation system along the at least one axis causing solar energy to be directed at the central focal point. When solar energy is directed at the central focal point, the energy output of each solar energy receiver is substantially identical.

Abstract: A system and method of collecting solar energy from sunlight, employing a thermal generation apparatus having a solar collector module including a receiver in optical communication with an array of mirrors. The method comprises reflecting energy impinging upon the reflector assembly with a plurality of reflective elements. The plurality of reflective elements is configured to direct energy reflected therefrom onto the receiver. The solar collector module is configured to rotate about an axis; and an angular position of the plurality of reflective elements is changed in relation to relative movement of the sun with respect to earth.

Abstract: The present invention provides methods and systems for a solar panel adjustment device, including a solar panel having a first end and a second end for receiving sunlight, a first pivot frame engaged to the first end of the solar panel for adjusting the solar panel, a second pivot frame engaged to the second end of the solar panel for adjusting the solar panel, and at least one drive means for adjusting the first pivot frame and the second pivot frame independently of one another.

Abstract: A method includes collecting site specific data, collecting field data at a site of an array of photovoltaic members, determining a current tracked irradiance of the array of photovoltaic members, calculating predicted irradiance for multiple orientations based on the site specific data and the sensed field data, or sensing an actual irradiance for multiple orientations. The method further includes determining a maximum predicted irradiance from the calculated predicted irradiance or a maximum actual irradiance from the sensed irradiance. The method further includes comparing the maximum predicted irradiance or the maximum sensed irradiance with the current tracked irradiance, and re-orienting the array of photovoltaic members to an orientation having the maximum predicted or actual irradiance if the maximum predicted or actual irradiance is greater than the current tracked irradiance.

Abstract: In this presentation, we have shown new methods, devices, and systems, to concentrate the light for the solar cells, using refractive index variations, light funnels, liquid crystals, and other methods and materials. We have shown various methods for enhancing the solar cell efficiency. We have given many variations for each application.

Abstract: A roof has a fixed roof section with a bottom, a top, sides and an exposed face. A solar panel has an exterior edge, an interior edge and side edges. The side edges have midpoints intermediate the interior and exterior edges. The solar panel has an outer face and an inner face. Tubing movably couples the solar panel with respect to the fixed roof section. A drive member is adapted to move the solar panel with respect to the fixed roof section. A control sub system includes a processor and a sensor. The processor is operatively coupled to the sensor. In this manner the position of the sun is determined. Also in this manner the drive member is activated and inactivated. Further in this manner the angular orientation of the solar panel may be varied. Finally in this manner the efficiency of the solar panel may be maximized.

Abstract: An adjusting device is provided for solar tracker. The adjusting device is used for testing off-axis beam damage of a CPV module. A universal transmission unit is comprised for adjustment. Thus, a CPV module is exactly focused to a predestined position. Furthermore, a focusing point of the CPV module can be biased to the predestined position for testing off-axis beam damage.

Abstract: A solar power system concurrently generates electricity and a heated transparent fluid while maintaining the solar cells at an optimum temperature and optimizing the heat transfer by matching the refractive index of the secondary sunlight concentrator to the transparent fluid. A solar tracker aligns a primary sunlight concentrator to collect sunlight and directs the sunlight and a system for transferring solar heat to a transparent fluid and into a solar power electrical generating system. The concentrated sunlight transfers solar heat to a transparent fluid via first pass through the transparent fluid. The concentrated sunlight is further concentrated to raise its temperature by passing the concentrated sunlight through a secondary sunlight concentrator, and then passed again through the transparent fluid to transfer heat. The solar energy diminished concentrated sunlight strikes a solar cell array to generate electricity.

Abstract: A solar tracking device including a solar panel, an orientation control device, and an inclination sensing device is provided. The solar panel is suitable for converting solar energy into electric energy. The orientation control device controls an orientation of the solar panel according to the position and time of the solar panel. The inclination sensing device is disposed on the solar panel for detecting an inclination direction of the solar panel. The inclination sensing device is suitable for outputting a feedback signal to the orientation control device to adjust the orientation of the solar panel. The solar tracking device has a simple tracking mechanism because of a simple feedback mechanism of the inclination sensing device.

Abstract: A method for automated startup and/or for automated operation of controllers of an electrical drive system with vibrational mechanics with the following steps: (a) determining a preliminary value of at least one parameter; (b) determining a model of the electrical drive system by determination of initially a non-parameterized model through the recording of frequency data during operation of the drive system subject to the utilization of the preliminary value of at least one parameter and the subsequent determination of parameters of the electrical drive system based on the frequency data and subject to optimization of at least one preliminary value of at least one parameter by a numerical optimization method on the basis of the Levenberg-Marquardt algorithm and (c) parameterizing at least one controller of the electrical drive system by at least one of the determined parameters.

Abstract: A solar tower system including an array of individually controlled carousel-type heliostats, where each heliostat includes a rotatable D-shaped carousel, a mirror array including horizontal, elongated flat mirrors supported in a tiltable (e.g., louvered) arrangement on the carousel, and a mirror positioning system that is disposed next to the carousel and controls the tilt position of each mirror and a rotational position of the carousel to reflect light onto a solar receiver. The heliostats are arranged in a closely-spaced (e.g., square or hexagonal) pattern that both maximizes the effective ground coverage ratio of solar power harvesting system and facilitates the formation of service pathways that allow access to any of the heliostats in the array (e.g., by aligning the straight peripheral wall portions of adjacent carousels in parallel with each other).

Abstract: The system and method for automatic positioning of a solar array utilizes modular neural processors pre-trained from existing solar data to estimate the direction of the sun at any location and at any time, irrespective of the orientation or movement of the base unit, and to determine solar panel servo tracking system steering commands for optimal orientation of the solar panel surfaces towards the sun. The automatic positioning system may be used in power generation or water desalination facilities. The device integrates a GPS system, an electronic compass, and an inclination sensor for determination of the orientation of the base unit. Periodic control commands are issued to conventional servo systems for automatic steering of a solar array for maximum solar power acquisition to optimize energy gain versus energy consumption in steering.

Abstract: A solar energy collection system has a solar receiver with an external surface configured for high absorption of light incident thereon. The solar receiver also has a plurality of light-reflecting elements arranged on the external surface. The light-reflecting elements produce at least partially diffuse reflection of light energy incident thereon. Heliostats concentrate solar radiation onto the external surface of the solar receiver. An imaging device provides a digital image of at least a portion of the external surface of the solar receiver. A controller can control the heliostats in response to apparent brightness of the light-reflecting elements as represented in the digital image.

Abstract: An apparatus and method for collecting solar energy are provided. The apparatus is a trough-type solar collector having one or more mirrors and lenses for directing solar radiation toward a receiver configured to receive a heat transfer fluid therein. The amount of solar radiation directed toward the receiver can be controlled by adjusting one or more of the mirrors and/or lenses or by adjusting a shade. Thus, the collector can direct different amounts or solar radiation toward the receiver, thereby selectively heating the receiver at different rates, e.g., to preheat the receiver, to heat fluid in the receiver for power generation, or to thaw solidified fluid in the receiver. Subsequently, the heated fluid can be used to generate steam and/or electricity.

Abstract: A reciprocating solar engine includes a) a seesawing platform having a central fulcrum support upon which to reciprocally rotate the platform; b) a first container located on the platform on one side and a second container located on the other side of the platform; c) a solar reflector located adjacent each container; d) a connecting tube connecting the first and second containers; e) an evaporative fluid contained within at least one of the containers; f) a roof above the platform with a window located above each of the containers; g) shutter devices at each of the windows; and b) shutter device controls to activate the shutter devices to present alternating exposure of sunlight and shading at each of the containers to effect reciprocal movement.

Abstract: The alignment of a parabolic trough reflector and its receiver pipe in a solar thermal field for collecting sunlight energy can be verified by acquiring an aerial image of the parabolic trough reflector from above the thermal field while passing through the sun-receiver-vertices plane of the parabolic trough reflector. By analyzing the aerial image to determine whether any reflection of the sun is visible in the parabolic trough reflector in the aerial image, one can determine whether the parabolic trough reflector and its receiver pipe is properly aligned. If a reflection of the sun is visible in the parabolic trough reflector in the aerial image, the parabolic trough reflector and its receiver pipe are out of alignment and require an adjustment.

Abstract: A solar canopy system includes support towers and an upper canopy suspended therefrom, the upper canopy forming a catenary shape. A method of generating electricity includes deploying mirrors upon a canopy that forms a catenary shape, to focus sunlight on a Dewar tube containing a heat transfer fluid, utilizing heat from the sunlight collected within the heat transfer fluid to generate steam, and generating the electricity with a turbine powered by the steam. A method of generating electricity includes deploying first and second photovoltaic cell grids upon a canopy that forms a catenary shape, the second grid being movable relative to the first grid. The method also includes positioning the second grid with respect to the first grid so as to maximize light collection and electricity generation during daylight hours, and repositioning the grids so as to maximize transparency of the canopy during nighttime hours.

Abstract: Methods and systems for managing heliostat aiming toward a target are described. Solar rays incident on a reflective surface of a heliostat mirror are reflected toward the target. One or more optical signalers are arranged at positions about the target. An optical signal received from one of the one or more optical signalers is detected. An error in an orientation of the reflective surface is determined based on the optical signal.

Abstract: Disclosed is a controlling apparatus for use in a photovoltaic system. The photovoltaic system includes a solar cell array, an inverter and a solar tracker. The solar tracker includes a solar position sensor, a controller connected to the solar position sensor, a first motor connected to the controller for rotating the solar cell array according to the azimuth of the sun and a second motor connected to the controller for tilting the solar cell array according to the elevation of the sun. The controlling apparatus includes a central unit, a basic unit, a diagnosis unit, a maintenance unit, a security unit and a check unit.

Abstract: An active tracking solar assembly includes a main actuator cable and a secondary cable having a first end and a second end. The first end is connected to the main actuator cable and the second end is connected to a roof weight. An actuator bar has a counter weight attached to a first end and a first pulley attached to a second end, and the secondary cable engages the first pulley.

Abstract: An exemplary heat-distribution sensor includes a base and a number of thermocouples. The base includes a spherical surface and defines a number of receiving holes in the spherical surface. Each thermocouple has a sensing end which is received in a corresponding receiving hole and is configured for sensing heat generated by sunlight rays impinging on the sensing end.

Abstract: A machine for tracking the sun's movement and concentrating sunlight consists of a main frame which pivots in the north and south direction on a base having conduit for a heat medium (a liquid usually of the Glycol family the main frame supports the mirror frame that pivots 360 degrees East to West allowing the mirror to focus the sunlight onto the conduit heating the liquid medium producing a very high and concentrated amount of heat during the entire daylight period and can be used for a small business or residential heating. An optional prism can be attached to the mirror frame to focus sun rays onto the conduit for added heat.

Abstract: Provided is a high-effective concentration photovoltaic solar tracking device and method; and, more particularly, to a concentration photovoltaic solar tracking device and method, which maximize concentration efficiency by concentrating solar light using a Fresnel lens and moving a solar panel based on focus information formed when the concentrated solar light is irradiated on a photodiode.

Abstract: The present invention relates to a method and apparatus to control a focal length of a curved reflector in real time. An energy generation system includes curved reflectors, a tower, and an energy storing unit connected to the tower. The curved reflectors reflect and concentrate light from a light source onto the tower. The tower converts the received light into usable energy which is stored in the energy storing unit. Each of the curved reflectors can include a curved body, a stand, and/or an actuation unit. The curved body reflects the light from the light source to concentrate it onto the tower. When the light source moves, the curved body pivots about the stand to track the light source. The actuation unit is activated to adjust a focal length of the focal point of the curved body to ensure that the reflected light is concentrated at the tower.

Abstract: The invention relates to a single-axis solar tracker formed by a support structure (2) which is supported in a rotating assembly with respect to a vertical axis on a base (7), a bearing structure (3) for a solar panel being assembled on said support structure (2) by means of horizontal articulations (4), with the inclusion between said structures (2 and 3) of ties (5) which can be longitudinally regulated, by means of which the inclination of the bearing structure (3) for the solar panel can be relatively varied.

Abstract: The invention relates to a two-axle solar tracker, consisting of a moving supporting system for solar panels, which maximizes the energy production of said panels and which is formed by a vertical axle and a horizontal axle in relation to which the system rotates in order to track the sun's path. The aforementioned axles are components of a structure supported at the center and supported peripherally on wheels positioned on a running track or surface. The structure rotates about a fixed central point supporting the vertical axle of the tracker. At least one board is positioned on the horizontal axle of the structure in order to receive the solar modules or panels and said board(s) can rotate about the horizontal axle so that the solar panels are maintained perpendicular to the sun's rays.

Abstract: Methods, systems, and apparatus, including computer programs encoded on one or more computer storage devices, for collecting solar energy using heliostats arranged about a collection of solar energy receivers. For each heliostat, estimated efficiencies of the heliostat in directing solar rays to two or more receivers at various times of day are determined. Each heliostat is assigned to direct solar rays to two or more different receivers at two or more different times of day, wherein each heliostat directs solar rays to one receiver at a time and the assigning is based on the determined estimated efficiencies for the heliostat at the various of times of day. In some implementations, the receivers are repositionable.

Abstract: When using a solar concentrator to obtain energy collected from the sun, it can be beneficial to place the concentrator accurately. As the concentrator moves, a position of the concentrator with respect to gravity can be determined, such as through the use of an inclinometer. A comparison can be made of the determined position against a desired position. The comparison can be made to determine if the concentrator should move. If a positive determination is made, then the concentrator can be moved accordingly.

Abstract: The solar panel cone with rotating mirror includes a cone-shaped solar panel array that rests upon a base, and a rotating mirror. The rotating mirror rotates about the base via a series of gears and motor. The device includes an electrical converter that is wired to the motor and an electrical wire that supplies electricity.

Abstract: A suntracking system for a central receiver solar power plant includes a heliostat field for reflecting sunlight to a receiver, cameras directed toward at least a subset of the heliostats, and a controller. The cameras are configured to produce images of sunlight reflected from multiple heliostats. The heliostats include a mirrored surface having a settable orientation and have a geometry modeled by a set of parameters. A method of estimating heliostat parameters for open-loop suntracking includes acquiring pointing samples by setting the direction of reflection of the heliostats and detecting concurrent sunlight reflections into the cameras. The method uses the acquired pointing samples and surveyed locations of the cameras to estimate the heliostat parameters. The method accurately maintains the sun's reflection directed toward the receiver open-loop utilizing the estimated tracking parameters.

Abstract: The invention relates to a reflection device that can track the location of sun, focusing solar radiation on a radiation receiver. The tracking is controlled by means of an auxiliary mirror guiding an auxiliary beam to a target. The position of the point of incidence of the auxiliary beam on the target is detected by a video camera and an image capture system, and said actual position is adjusted to a prescribed target position. It is thus achieved that the main beam is always precisely aimed at the radiation receiver.

Abstract: An improved concentrated solar power collector, includes a frame intended to be mounted rotatable to a stand surface, according to a first axis perpendicular to the stand surface, at least one solar concentrator fixed on the frame at a desired angle determined so that the solar concentrator is oriented at between 20 and 70° with reference to the stand surface and reflect or direct sunlight upwardly toward a heat pipe, connected to a steam network including a steam tank carried by the frame, wherein the frame is able to rotate automatically to provide an azimuth-tracking of the solar concentrator following the azimuth of the sun, wherein the steam tank works with a diffusion absorption cooling machine or a hot water heating arrangement, feeding a warm-water tank and an ice/cold-water tank, the warm-water and ice/cold-water tanks being directly connected to a house.

Abstract: An auto-focusing device for solar heat energy power generators includes a stationary heating unit for absorbing solar energy to make works, a lens unit including a lens and a frame, a first driving unit connected to the frame and driving the frame, and a tracking unit electrically connected to the first driving unit and controlling the first driving unit to output power. The lens is fixed to the frame and focuses solar beam on the heating unit. The frame is movable along a curved track such that the lens always aims at the sun. Multiple auto-focusing devices for solar heat energy power generators are arranged in matrix form so as to generate electric power.