Patent ID: 7799987
Filing Date: 2010-09-21
Classification: F24S,H01L,H02S,Y02E

Abstract:
1. A solar tracker, comprising: a mounting surface to which a solar device is mounted; a bendable mounting surface support with an outer surface material that expands when exposed to water but not exposed to sunlight and contracts when exposed to sunlight that supports the mounting surface; and a device for collecting electrical energy from the solar device; wherein the outer surface material expands and grows due to absorption of water when it is without sunlight and sunlight shining on the outer surface material causes a sunlit side of the outer surface material to shrink relative to a shaded side of the outer surface material not exposed to sunlight due to drying of the sunlit side thus causing the bendable mounting surface support to bend toward the direction of sunlight so that the mounting surface is substantially perpendicular to said direction of sunlight as the sun travels through a useful arc relative to the solar tracker.