Exhibit 24(f)2

William C. Grantham Vice President, and Chief Financial Officer Southern Power 30 Ivan Allen Jr. Blvd. NW
Atlanta, GA 30308

October 8, 2013

Ms. Janet J. Hodnett Southern Power Company 30 Ivan Allen Jr. Blvd., NW Atlanta, GA 30308 Ms. Melissa K. Caen Southern Company Services, Inc. 30 Ivan Allen Jr. Blvd., NW Atlanta, GA 30308

Ladies:

As an officer of Southern Power Company, I hereby make, constitute, and appoint you my true and lawful Attorney in my name, place and stead, to sign and cause to be filed with the Securities and Exchange Commission (1) this Company's Quarterly Reports on Form 10-Q during 2013, and (2) any necessary or appropriate amendment or amendments to any such reports and to this Company’s Annual Report on Form 10-K for the year ended December 31, 2012, each such report or amendments to such reports to be accompanied in each case by any necessary or appropriate exhibits or schedules thereto.

Yours very truly,

/s/William C. Grantham

William C. Grantham