Media Advisory: Duke Energy to Announce First Quarter 2009 Earnings on May 5

CHARLOTTE, N.C. - Duke Energy will announce its first quarter 2009 earnings results at 7 a.m. ET Tuesday, May 5, 2009.

An earnings conference call for analysts is scheduled for 10 a.m. ET Tuesday, May 5. The conference call can be accessed via the investors’ section (http://www.duke-energy.com/investors/) of Duke Energy’s Web site or by dialing 719-325-4762 outside the United States or 877-719-9788 in the United States. The confirmation code is 8532465. Please call in 10 to 15 minutes prior to the scheduled start time. A replay of the conference call will be available until midnight ET, May 15, 2009, by calling 719-457-0820 outside the United States or 888-203-1112 in the United States, and using the code 8532465. A replay and transcript also will be available by accessing the investors’ section of the company’s Web site.

Duke Energy is the third largest electric power holding company in the United States, based on kilowatt-hour sales. Its regulated utility operations serve approximately 4 million customers located in five states – North Carolina, South Carolina, Indiana, Ohio and Kentucky -- representing a population of approximately
11 million people. Duke Energy’s commercial power and international business segments operate diverse power generation assets in North America and Latin America, including a growing portfolio of renewable energy assets in the United States.

Headquartered in Charlotte, N.C., Duke Energy is a Fortune 500 company traded on the New York Stock Exchange under the symbol DUK. More information about the company is available on the Internet at: www.duke-energy.com.