First Solar, Inc. manufactures and sells solar modules with an advanced thin-film semiconductor technology, and it designs, constructs, and sells photovoltaic (PV) solar power systems. The Company is a thin-film PV solar module manufacturer and a PV solar module manufacturer. The Company produced nearly two gigawatts of solar modules during the year ended December 31, 2011. It operates its business in two segments: components segment and systems segment. Its components segment involves the design, manufacture, and sale of solar modules, which convert sunlight into electricity. Its systems business involves the sale of its solar modules coupled with the engineering, procurement and construction of the solar PV power plant. In January 2011, the Company acquired RayTracker, Inc.