Abstract: A mirror includes multiple layers, each layer having a first surface and an opposing second surface. A first layer is a cementitious material and a second layer is a material compatible with the cementitious material. A first surface of the second layer is integral to the first layer. The second layer is thinner than the first layer and includes an additive that provides electrical conductivity. A third layer provides a transition between the second layer and a reflective surface. A first surface of the third layer is in direct contact with a second surface of the second layer. A fourth layer provides the reflective surface. A first surface of the fourth layer is in direct contact with a second surface of the third layer. A fifth layer includes a transparent material. A first surface of the fifth layer is in direct contact with a second surface of the fourth layer.

Abstract: A power plant includes an engine coupled to a first generator and a second generator. The first generator includes a synchronous generator wherein the first generator is configured to provide reactive power to the second generator. The second generator includes an induction generator. One or more sensors are configured to measure a current output and a voltage output of the first and second generators, and a controller is configured to determine a power factor for the power plant based on the measured current output and voltage outputs. Based on the determined power factor, the controller adjusts the reactive power provided from the first generator to the second generator such that the power factor is maintained at a predetermined value.

Abstract: An apparatus includes a support member having a proximal end securable to a substantially fixed surface and a distal end opposite the proximal end; a solar energy member mounted to the support member at a location between the proximal and distal ends of the support member, where the solar energy member includes a first portion and a second portion arranged such that the support member extends substantially vertically between the two portions and the two portions are rotatable about a first axis to adjust azimuth of the solar energy member and about a second axis to adjust elevation of the solar energy member; and a plurality of cables, where each cable includes a first end secured to the distal end of the support member and a second end secured to a substantially fixed position, where the cables are configured to resist a wind load acting on the apparatus.

Abstract: A solar tracker includes a base having an upper surface, a collector support structure having a lower surface adjacent to the upper surface of the base, a conduit in fluidical communication with a space between the upper surface of the base and the lower surface of the collector support structure, a pump for pumping fluid into or out of the conduit, wherein injecting fluid into the conduit forms a fluid layer between the collector support structure and the base, and a solar collector supported by the collector support structure.

Abstract: A heliostat system includes a base member adapted to be secured to a fixed surface, a transitional member that is formed as a substantially unitary member and a mirror member. The transitional member is coupled to the base member and to the mirror member. The mirror member includes a support portion coupled to the transitional member and a mirror portion. A first bearing coupling the base member and the transitional member provides relative changes in azimuth between the base member and the transitional member. A second bearing coupling the transitional member and the mirror member provides relative changes in elevation between the transitional member and the mirror member. A drive system rotates the transitional member about the first bearing and the mirror member about the second bearing to change the azimuth and the elevation of the mirror member.

Abstract: A support tower for heavy loads or large structures such as a wind turbine generators, constructed of a plurality of telescopic tower sections with the outer lower tower section having a lower end supported from a foundation and at least one or more inner upper tower sections telescoped in an initial vertical nested relation within the outer lower tower section. The heavy load is mounted on an upper end of the inner upper tower section while in the initial vertical nested relation. The inner upper tower section or sections are then lifted upwardly to an extended tower height by lift mechanisms and the tower sections are secured in vertically extended position by inter-engaging wedge joint structure with bolt fasteners extending through mating wedge surfaces to retain the telescopic tower sections vertically extended and position the heavy load in a vertically elevated position.