SunEdison Inc, formerly MEMC Electronic Materials, Inc., incorporated on October 1, 1984, is engaged in the development, manufacture and sale of silicon wafers. The Company is a developer and seller of photovoltaic energy solutions. Through Solar Materials and Solar Energy (SunEdison), it is a developer of solar energy projects. The Company operates in two segments: semiconductor materials and solar energy. The Company�s Solar Energy segment includes the operations of its old Solar Materials segment, as well as its SunEdison business. In the Semiconductor Materials, the Company offers wafers with a variety of features. The Company�s wafers vary in size, surface features, composition, purity levels, crystal properties and electrical properties. In July 2014, the Company acquired 50% interest in Silver Ridge Power LLC (SRP) from a subsidiary of AES Corp. In July 2014, SunEdison Inc and TerraForm Power, Inc acquired Mt. Signal solar project.