Abstract: A mounting system for a heliostat is provided that allows the heliostat to move with respect to two orthogonal axes to track the sun. The mounting system has features that allow the heliostat to precisely and accurately move about these axes even as various components degrade during operation in harsh environments and over long time periods. Embodiments of the mounting system can have a frame that supports multiple mirrors and translates forces from the mirrors to multiple hubs that move about a circular track. One of the hubs can include a fewer number of contact points to accommodate a circular track that is out of round. In addition, an actuator that moves the hubs around the circular track can be biased into the track to also accommodate a circular track that is out of round.

Abstract: Improvements in the design and construction of solar collector modules. Aspects of the invention include improvements in the layout of a frame for a solar collector module, and in the joining of structural members of the frame at nodes. In one example, a module of a solar collector includes a reflector and a three-dimensional structural frame that supports the reflector. The frame is made up of substantially rigid elongate frame members interconnected at nodes. Improved node connection components include hubs or frame members having tabs for receiving frame member connections. A tab may have a width that is substantial in relation to its height. The frame may incorporate asymmetry in its layout, in the size or presence of frame members, or in the positioning of the nodes.

Abstract: Improvements in the design and construction of solar collector modules. Aspects of the invention include improvements in the layout of a frame for a solar collector module, and in the joining of structural members of the frame at nodes. In one example, a module of a solar collector includes a reflector and a three-dimensional structural frame that supports the reflector. The frame is made up of substantially rigid elongate frame members interconnected at nodes. Improved node connection components include hubs or frame members having tabs for receiving frame member connections. A tab may have a width that is substantial in relation to its height. The frame may incorporate asymmetry in its layout, in the size or presence of frame members, or in the positioning of the nodes.

Abstract: Improvements in the design and construction of solar collector modules. Aspects of the invention include improvements in the layout of a frame for a solar collector module, and in the joining of structural members of the frame at nodes. In one example, a module of a solar collector includes a reflector and a three-dimensional structural frame that supports the reflector. The frame is made up of substantially rigid elongate frame members interconnected at nodes. Improved node connection components include hubs or frame members having tabs for receiving frame member connections. A tab may have a width that is substantial in relation to its height. The frame may incorporate asymmetry in its layout, in the size or presence of frame members, or in the positioning of the nodes.

Abstract: Improvements in the design and construction of solar collector modules. Aspects of the invention include improvements in the layout of a frame for a solar collector module, and in the joining of structural members of the frame at nodes. In one example, a module of a solar collector includes a reflector and a three-dimensional structural frame that supports the reflector. The frame is made up of substantially rigid elongate frame members interconnected at nodes. Improved node connection components include hubs or frame members having tabs for receiving frame member connections. A tab may have a width that is substantial in relation to its height. The frame may incorporate asymmetry in its layout, in the size or presence of frame members, or in the positioning of the nodes.