Duke Energy Indiana Annual Attachment O Rate Meeting

August 4, 2015

RE: Duke Energy Indiana Annual Attachment O Rate Meeting Date : August 14, 2015 Time: 10:30 am to 11:30 am – via Conference Phone

Duke Energy Indiana invites you to participate in the Annual Customer Meeting for the 2014 rate year. The purpose of this meeting is to review information posted on the MISO website.

Pursuant to the protocols established in FERC Docket No. ER 13-2379, Duke Energy Indiana must calculate and post its formula transmission rate calculations and supporting work papers for the prior year. Also, Duke Energy Indiana is required to host a customer meeting to discuss this posting by September 1st of each year.

This meeting will be via conference phone, dial-in information as follows 1-866-385-2663 Conference ID 301297