Vincent Sorgi Vice President and Controller Tel. 610.774.3621  Fax 610.774.6092 vsorgi@pplweb.com     PPL Corporation Two North Ninth Street, GENTW15 Allentown, PA 18101-1179 Tel. 610.774.5151 http://www.pplweb.com

July 22, 2011

VIA EDGAR

Mr. William H. Thompson

Accounting Branch Chief

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: Correspondence from you dated July 19, 2011 concerning

PPL Corporation, PPL Electric Utilities Corporation,

PPL Energy Supply, LLC

Form 10-K for Fiscal Year Ended December 31, 2010

Filed February 28, 2011

Form 10-Q for Fiscal Quarter Ended March 31, 2011

Filed May 6, 2011

File Nos. 1-11459, 1-00905 and 1-32944

PPL Corporation

Definitive Proxy Statement on Schedule 14A

Filed April 6, 2011

File No. 1-11459

Dear Mr. Thompson:

This letter is in response to your correspondence dated July 19, 2011 concerning the filings listed above for PPL Corporation, PPL Electric Utilities Corporation and PPL Energy Supply, LLC.  In that letter, you asked that we respond to the comments within ten business days or advise the staff when we will respond.  As discussed during our July 21, 2011 phone conversation, we do not expect to be in a position to respond within the ten business day period, and we appreciate your agreeing to provide us up to an additional ten business days to respond.  We currently expect to respond no later than August 16, 2011.  In the meantime, please do not hesitate to contact me.  I can be reached at 610-774-3621.

Sincerely,

/s/ Vincent Sorgi

Vincent Sorgi

Vice President and Controller

PPL Corporation

PPL Electric Utilities Corporation

PPL Energy Supply, LLC