American Superconductor Corporation is an American energy technologies company headquartered in Ayer, Massachusetts. The firm specializes in using superconductors for the development of diverse power systems, including but not limited to superconducting wire. The company operates across three primary business segments: production of high-temperature superconductor wire, which has a significantly higher electrical current capacity than copper wire; development of HTS-based motors and generators; and design and manufacturing of power electronic systems for wind farms and transmission systems. AMSC employs superconductors in the construction of ship protection systems. The company has a subsidiary, AMSC Windtec, located in Klagenfurt, Austria.