Stephan W. Zumsteg

Energy Conversion Devices, Inc. engages in the design, manufacture and sale of photovoltaic products. It manufactures and sells thin-film solar laminates that convert sunlight to energy using proprietary technology. Energy Conversion Devices operates in two reportable business segments, namely, United Solar Ovonic and Ovonic Materials. The United Solar Ovonic segment designs, manufactures and sells PV laminates that generate clean, renewable energy by converting sunlight into electricity. The Ovonic Materials segment invents, designs and develops materials and products based on its pioneering materials science technology. Energy Conversion Devices also designs, manufactures and installs rooftop photovoltaic systems, which enable customers to transform unused space on the rooftop into a value-generating asset. The company was founded in 1960 and is headquartered in Rochester Hills, MI.

United Solar Ovonic LLC manufactures and markets amorphous silicon photovoltaic (PV) solar panels. The firm’s products are distributed globally under the UNI-SOLAR(R) brand. The company was founded in 1990 and is headquartered in Auburn Hills, MI.