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PHOTOVOLTAIC SOLAR COLLECTION AND TRACKING SYSTEM

United States Patent Application

20110114153
A1
View the Complete Application at the US Patent & Trademark Office
A photovoltaic sun tracking system including a photovoltaic assembly, a first mounting structure, and a second mounting structure. The photovoltaic assembly includes at least one PV cell maintained by framework defining a PV plane. The first and second mounting structures are mounted to a support surface and rotatably maintain the framework at first and second pivot points, respectively, to establish a tracking axis passing through the pivot points. The tracking axis is non-parallel with the PV plane. The photovoltaic assembly can be rocked along the tracking axis to follow motion of the sun relative to the earth. One or both of the mounting structures can be relatively small, and the off-parallel tracking axis promotes increased efficiency over the course of a year.
Almy, Charles (Berkeley, CA), Barsun, Stephen (Davis, CA), Sandler, Reuben (Berkeley, CA), Wares, Brian (Sacramento, CA), Wayman, Elizabeth (Richmond, CA)
SUNPOWER CORPORATION (San Jose CA)
12/ 776,185
May 7, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with Government support under Contract No. DE-FC36-07G017043 awarded by the United States Department of Energy. The Government has certain rights in this invention.