The White House is expected to announce Tuesday a multimillion-dollar deal that will convert a closed General Motors plant in Wilmington, Del., into a factory making electric vehicles.

Vice President Biden will make the announcement that Fisker Automotive of Irvine, Calif., is expected to invest $175 million to retool the plant.

Fisker, which will pay the old GM $18 million for the facility and equipment, is getting tax incentives from the state of Delaware, although officials there declined Monday to say how much.

Fisker plans to make a car in Delaware that is being developed under the name "Project Nina" after the ship belonging to explorer Christopher Columbus. Russell Datz, a Fisker spokesman, said that the project's name is meant to be "symbolic of...