Tesla Motors, Inc. designs, develops, manufactures and sells electric vehicles, electric vehicle powertrain components and stationary energy storage systems. The Company also designs, develops, manufactures and sells electric vehicle powertrain components to other automotive manufacturers. Its products include Model S and The Tesla Roadster. The Company uses energy management technologies and manufacturing processes developed for its vehicle powertrain systems and develops stationary energy storage products for use in homes, commercial sites and utilities. It designs its battery packs. The Company's technology includes cooling systems, safety systems, charge balancing systems, battery engineering for vibration and environmental durability, robotic manufacturing processes, customized motor design and the software and electronics management systems necessary to manage battery and vehicle performance.