AYER — AMSC has acquired Northeast Power Systems Inc., a private company based in upstate New York, for $26 million, according to a company release.AMSC, maker of energy equipment and software more formally known as American Superconductor Corp., announced the purchase Tuesday. The sellers also received 873,657 restricted shares of AMSC common stock. The acquisition of NEPSI aligns with AMSC’s strategic priorities to accelerate profitable growth independent of its […]