FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0104 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person *   De May Stephen G 2. Date of Event Requiring Statement (Month/Day/Year) 12/13/2007 3. Issuer Name and Ticker or Trading Symbol Duke Energy CORP [DUK] (Last) (First) (Middle) 526 S. CHURCH STREET 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Vice President & Treasurer 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) CHARLOTTE, NC 28202 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 1,155 D   Common Stock 8,695 I By Retirement Savings Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Phantom Stock Esp I	  (1)	  (2)	Common Stock	1,685	$ (3)	D	Â
Phantom Stock Esp II	  (1)	  (2)	Common Stock	1,013	$ (3)	D	Â
Stock Option (Right to Buy)	02/17/2002	02/17/2008	Common Stock	2,700	$ 15.74	D	Â
Stock Option (Right to Buy)	02/17/2003	02/17/2009	Common Stock	6,300	$ 16.9	D	Â
Stock Option (Right to Buy)	12/20/2003	12/20/2009	Common Stock	12,800	$ 14.17	D	Â
Stock Option (Right to Buy)	12/20/2004	12/20/2010	Common Stock	9,600	$ 24.39	D	Â
Stock Option (Right to Buy)	12/19/2005	12/19/2011	Common Stock	9,400	$ 21.47	D	Â
Stock Option (Right to Buy)	01/17/2002	01/17/2012	Common Stock	2,600	$ 21.84	D	Â
Stock Option (Right to Buy)	01/28/2003	01/28/2013	Common Stock	1,700	$ 9.74	D	Â
Stock Option (Right to Buy)	02/25/2007	02/25/2013	Common Stock	9,900	$ 7.85	D	Â
Ltip Phantom Stock Grant Feb	  (4)	  (2)	Common Stock	1,998	$ (3)	D	Â
Ltip Phantom Stock Grant April	  (5)	  (2)	Common Stock	2,440	$ (3)	D	Â
Phantom Stock	  (6)	  (2)	Common Stock	4,750	$ (3)	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
De May Stephen G 526 S. CHURCH STREET CHARLOTTE, NC 28202	Â	Â	  Vice President & Treasurer	Â

Signatures

/s/ David S. Maltz, attorney-in-fact for Stephen G. De May		12/21/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Generally payable upon reporting person's termination of service.
(2)	Expiration date not applicable.
(3)	Converts to Common Stock on a 1-for-1 basis.
(4)	The reporting person was granted 3,330 shares on February 28, 2005. The shares will vest in five equal annual installments beginning on the first anniversary of the grant date.
(5)	The reporting person was granted 3,050 shares on April 4, 2006. The shares will vest in five equal annual installments beginning on the first anniversary of the grant date.
(6)	The phantom stock vests in three equal annual installments beginning on the first anniversary of the grant date.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.