Enova Systems, Inc. (Enova) is engaged in the development, design and production of power train systems and related components for electric and hybrid electric buses and medium and heavy duty commercial vehicles. Its focus is power train systems, including digital power conversion, power management and system integration, focusing on vehicle power generation. It develops designs and produces drive systems and related components for electric, hybrid electric and fuel cell powered vehicles in both the new and retrofit markets. It also performs internal research and development (R&D) and funded third party R&D to augment its product development and support its customers. During the year ended December 31, 2011, it produced electric and hybrid electric drive systems and components for First Auto Works of China (FAW), Smith Electric Vehicles (Smith), Freightliner Custom Chassis Corporation (Freightliner), Navistar Corporation (Navistar), Optare Bus (Optare) and the United States Military.