President Obama used the backdrop of an Iowa wind-energy manufacturing plant Thursday to ramp up pressure on Congress to extend an expiring tax break that has been vital to financing new power projects.

Extension of the wind-energy production tax credit — which is slated to lapse at year’s end — is part of a short “to do list” of actions Obama says Congress could do quickly to help the economy.

Obama, speaking at TPI Composites, noted that domestic manufacturing, rather than imports, of various wind turbine parts now supports many facilities in 43 states employing tens of thousands of workers.