The U.S. government has signed an $80 billion deal with nuclear giant Westinghouse to build a series of nuclear reactors in its latest effort to build out the carbon-free energy source. 

The strategic partnership involving Canadian uranium firm Cameco Corporation and Brookfield Asset Management was announced Tuesday morning in response to President Donald Trump’s May executive orders, which laid out the administration’s goal to quadruple U.S. nuclear capacity by 2050.