A concentrator tube comprises a reflector portion having two walls; and an aperture closing an opening to the reflector portion. The aperture and the reflector portion extend longitudinally. The aperture is substantially flat relative to curvature of the reflector portion.

The disclosure relates to a pre-assembly plant for the pre-assembly of units of a solar tracker, wherein said units include a set of photovoltaic panels arranged on a structure formed by a main shaft and a plurality of purlins. Said plant advantageously includes a conveyance line for conveying components of the units, in the proximity of which at least the following pre-assembly sections are arranged: a section equipped with features to receive components of the units, and an unloading area thereof; a fitting section for fitting the purlins to the shafts; an installation section for installing photovoltaic panels on the purlins; and a finishing section for the pre-assembly of the units and for the stockpiling thereof in support structures. The disclosure likewise relates to a pre-assembly method for the pre-assembly of units comprising the use of said plant.

A solar power conversion kit allows converting of a standard umbrella into a solar charging umbrella, which can then use solar power to charge electronic devices. The solar charging umbrella is self-sustained, capable of charging electronic devices in locations away from electrical outlets. The umbrella has a rechargeable battery that is recharged by sunlight. When charged, the umbrella's battery can charge devices when sunlight is not available. The umbrella supports simultaneous charging of higher power devices such as tablet computers.

A solar thermoelectric power generation system includes roofing products such as shingles with solar heat reflective areas and roofing products with solar heat absorptive areas. Thermoelectric power generating elements are provided in thermal contact with the solar heat reflective areas and the solar heat absorptive areas.

A solar power conversion kit allows converting of a standard umbrella into a solar charging umbrella, which can then use solar power to charge electronic devices. The solar charging umbrella is self-sustained, capable of charging electronic devices in locations away from electrical outlets. The umbrella has a rechargeable battery that is recharged by sunlight. When charged, the umbrella's battery can charge devices when sunlight is not available. The umbrella supports simultaneous charging of higher power devices such as tablet computers.

A solar power system can include a rail and a solar module disposed on the rail. A clamp assembly can couple the solar module to the rail. The clamp assembly can have a clamped configuration in which the solar module is secured to the rail and an unclamped configuration. The clamp assembly can comprise an upper clamp member, a lower clamp member coupled to the rail, and a stabilization member mechanically engaging the upper clamp member and the lower clamp member. The stabilization member can prevent rotation of the lower clamp member relative to the rail when the clamp assembly is in the clamped and unclamped configurations. In the unclamped configuration, the stabilization member can be biased such that the upper clamp member is disposed at a sufficient clearance above the rail to permit the insertion of the solar module between the upper clamp member and the rail.

A solar tracking assembly includes a spine and a plurality of paired brackets connected to the spine. The brackets are positioned on opposite sides of the spine and at least one of the paired brackets includes wheels to allow rolling movement of the spine. An array arm is attached to each bracket and is moveable from a shipping position to a deployed position, and at least one solar array panel is secured to each array arm. A method of installing a solar panel assembly includes assembling in a secondary automated process at least one solar panel assembly in an offsite location, loading the solar panel assembly in the shipping position on a truck, transporting the truck to a deployment site, and off-loading the solar panel assembly from said truck.

A solar power system can include a rail and a solar module disposed on the rail. A clamp assembly can couple the solar module to the rail. The clamp assembly can have a clamped configuration in which the solar module is secured to the rail and an unclamped configuration. The clamp assembly can comprise an upper clamp member, a lower clamp member coupled to the rail, and a stabilization member mechanically engaging the upper clamp member and the lower clamp member. The stabilization member can prevent rotation of the lower clamp member relative to the rail when the clamp assembly is in the clamped and unclamped configurations. In the unclamped configuration, the stabilization member can be biased such that the upper clamp member is disposed at a sufficient clearance above the rail to permit the insertion of the solar module between the upper clamp member and the rail.

A system for rapidly assembling solar receiving tubes and solar energy systems comprises a welding station is described. The welding station provides for rapidly assembling solar receiver tubes by welding together two or more solar receiving tubes and comprises means for receiving and restraining solar receiver tubes and a welding station comprising an orbital or a rotational weld head.

A solar power system can include a rail and a solar module disposed on the rail. A clamp assembly can couple the solar module to the rail. The clamp assembly can have a clamped configuration in which the solar module is secured to the rail and an unclamped configuration. The clamp assembly can comprise an upper clamp member, a lower clamp member coupled to the rail, and a stabilization member mechanically engaging the upper clamp member and the lower clamp member. The stabilization member can prevent rotation of the lower clamp member relative to the rail when the clamp assembly is in the clamped and unclamped configurations. In the unclamped configuration, the stabilization member can be biased such that the upper clamp member is disposed at a sufficient clearance above the rail to permit the insertion of the solar module between the upper clamp member and the rail.