Des Moines Register: A new law intended to drive about $370 billion in climate and renewable energy investment may lead to the reopening of an Iowa wind turbine blade manufacturing plant that once employed more than 700 people. TPI Composites, an Arizona company, closed its Newton turbine blade manufacturing plant at the end of last year, laying off 710 workers. Another beneficiary could be Arcosa Inc., a Texas company that makes wind turbine towers in Newton.