Importance

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Abstract

A tilted single-axis tracking system (20) for collecting solar energy includes a structure (22) for supporting an array (26) of photovoltaic (PV) modules (24) above a surface (28). The structure (22) includes a frame (34) having first and second legs (40, 42) configured to extend upwardly from the surface (28) and join at an apex (54). A base tensioning member (44) of the frame (34) is interposed between the first and second legs (40, 42). A torque tube (36) is pivotally retained by the frame (34) at the apex (54) and is configured for attachment of the array (26) of PV modules (24). A foot member (38) pivotally retains a tube end (60) of the torque tube (36) and is configured to rest on the surface (22). A first tensioning member (106) is coupled between the foot member (38) and the first leg (40), and a second tensioning member (108) is coupled between the foot member (38) and the second leg (42). A pre-tensioning member (110) extends from the apex (54) of the frame (34) and is configured for attachment to the surface (28). In an alternative embodiment, the pre-tensioning member (110) is omitted and pre-tensioning members (152) extend from each of the first and second legs (40, 42) and the foot member (38) and are configured for attachment to the surface (28).

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First Claim