Duke Energy Corporation
Filed pursuant to Rule 433
June 11, 2008
Relating to
Preliminary Prospectus Supplement dated June 11, 2008 to
Prospectus dated October 3, 2007
Registration Statement No. 333-146483
Duke Energy Corporation
5.65% Senior Notes due 2013
6.25% Senior Notes due 2018
Pricing Term Sheet
                 
 
Issuer:
    Duke Energy Corporation
 		  
 
Ratings (Moody’s/ S&P):
    Baa2/BBB+
 		  
 
Settlement:
    June 16, 2008 (T+3)
 		  
 
Trade Date:
    June 11, 2008
 		  
 
Interest Payment Dates:
    Semi-annually on June 15 and December 15, commencing December 15, 2008
 		  
 
Security Description:
    5.65% Senior Notes Due 2013     6.25% Senior Notes Due 2018
 		  
 
Principal Amount:
    $250,000,000     $250,000,000
 		  
 
Maturity:
    June 15, 2013     June 15, 2018
 		  
 
Coupon:
    5.65%     6.25%
 		  
 
Benchmark Treasury:
    3.500% due 5/31/2013     3.875% due 5/15/2018
 		  
 
Benchmark Treasury Yield:
    3.496%     4.085%
 		  
 
Spread to Benchmark Treasury:
    +220 bps     +220 bps
 		  
 
Yield to Maturity:
    5.696%     6.285%
 		  
 
Initial Price to Public:
    99.803% per Note     99.743% per Note
 		  
 
Redemption Provisions:
            
 		  
 
     Make-Whole Call:
    +40 bps     +40 bps
 		  
 
Denominations:
    $2,000 or any integral multiple of $1,000 in excess thereof     $2,000 or any integral multiple of $1,000 in excess thereof
 		  
 
CUSIP:
    26441C AA3     26441C AB1
 		  
 
Joint Book-Running Managers:
    Credit Suisse Securities (USA) LLC
Goldman, Sachs & Co.
Lehman Brothers Inc.
 		  
 
Co-Managers
    Citigroup Global Markets Inc.
Lazard Capital Markets LLC
Scotia Capital (USA) Inc.
Sun Trust Robinson Humphrey, Inc.
 		  
 
The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling Credit Suisse Securities (USA) LLC at (800) 221-1037, Goldman, Sachs & Co. at (866) 471-2526 or Lehman Brothers Inc. toll-free at (888) 603-5847.