Rivian ready to invest $5 billion in second U.S. assembly plant, document says Rivian ready to invest $5 billion in second U.S. assembly plant, document says July 27, 2021 dzadmin Comments 0 Comment The plant, dubbed “Project Tera,” requires an estimated 10,000 acres of land according to a document seen by Reuters, but economic development officials said finding a piece of land that large would be highly unlikely.