In July, Johnson was unceremoniously ousted from his role as CEO of Charlotte, N.C.-based Duke Energy shortly after it merged with Progress, where he had been CEO.
That deal created the nation’s largest utility, but Johnson fell victim to a coup from Duke board members, who installed Jim Rogers — a Democratic supporter instrumental in making Charlotte the site of the 2012 Democratic National Convention — atop the firm.
Duke officials had questioned Johnson's managerial style, according to various reports, calling him too domineering to run the combined Duke-Progress utility.
Sen. Bob Corker (R-Tenn.) offered Johnson advice Monday in a statement.
“TVA is at an important crossroads, and I hope that as Bill Johnson takes the helm, he will focus his efforts on tightly managing the operation and focusing on the strategic decisions and investments that need to be made — all with the knowledge that the economic future of the Tennessee Valley is tied to keeping rates low and ensuring our citizens have access to safe and reliable power,” Corker said.