American Superconductor (NASDAQ:AMSC) reported quarterly earnings of $0.30 per share which beat the analyst consensus estimate of $0.18 by 57.89 percent. This is a 150 percent increase over earnings of $0.12 per share from the same period last year. The company reported quarterly sales of $86.406 million which beat the analyst consensus estimate of $82.100 million by 5.24 percent. This is a 29.63 percent increase over sales of $66.655 million the same period last year.