Energy Conversion Devices, Inc. commercializes materials, products, and production processes for the alternative energy generation, energy storage, and information technology markets. The company operates in two segments: United Solar Ovonic and Ovonic Materials. The United Solar Ovonic segment designs, develops, manufactures, and sells proprietary thin-film solar (photovoltaic or PV) modules, which are lightweight, thin, flexible, and durable products for converting sunlight into electricity. It sells these PV modules to commercial roofing materials manufacturers, builders and building contractors, and solar power installers/integrators, who incorporate these PV modules into their products and services for commercial sale. The company also sells PV modules for ground-mounted and residential applications and, for some applications, manufactures and sells framed PV products. The Ovonic Materials segment invents, designs, and develops materials and products based on its materials science technology, principally amorphous and disordered materials. The company is commercializing NiMH materials and consumer battery technology through this segment internally and through third-party relationships, such as licenses and joint ventures. It licenses NiMH battery technology to NiMH battery manufacturers, principally for consumer applications; and produces proprietary positive electrode nickel hydroxide materials for use in NiMH batteries, which it sells to licensees of its NiMH battery technology. The company also engages in pre-commercialization activities for various emerging technologies, such as Ovonic solid hydrogen storage technologies, Ovonic metal hydride fuel cell technologies, and Ovonic biofuel reformation technologies. The company operates in the United States, Germany, China, Japan, Italy, and internationally. Energy Conversion Devices was founded in 1960 and is headquartered in Rochester Hills, Michigan.