American Superconductor Corporation (AMSC) has announced that its wholly owned subsidiary, Windtec, has received a follow-on order for 150 additional wind energy electrical systems from Beijing-based Sinovel Wind Corporation Limited. The order, worth more than US$8 million, is for the 1.5MW wind energy systems Sinovel is manufacturing and selling in China. AMSC expects to ship all 150 electrical systems in its fiscal year ending March 2008.