Ownership Submission
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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  LS Power Equity Partners PIE I L P
2. Date of Event Requiring Statement (Month/Day/Year)
11/30/2009
3. Issuer Name and Ticker or Trading Symbol
DYNEGY INC. [DYN]
(Last)
(First)
(Middle)
1700 BROADWAY, 35TH FLOOR
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10019
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)
Class A Common Stock 29,669,786 (1) (2) (3) (4) (5)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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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

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
LS Power Equity Partners PIE I L P
1700 BROADWAY, 35TH FLOOR
NEW YORK, NY 10019
    X    

Signatures

/s/ Darpan Kapadia, Managing Director 12/10/2009
**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) In connection with the Purchase and Sale Agreement (as amended, the "PSA") dated as of August 9, 2009, among LS Power Partners, L.P. ("LSP Partners"), LS Power Associates, L.P. ("LSP Associates"), LS Power Equity Partners, L.P. ("LSPEP"), LS Power Equity Partners PIE I, L.P. ("PIE I"), LSP Gen Investors, L.P. ("Gen Investors", and collectively with LSP Partners, LSP Associates, LSPEP, and PIE I, the "LS Entities"), Port River, LLC, Valley Road, LLC, Dos Rios, LLC (collectively with the LS Entities, "Buyers"),
(2) Dynegy Inc., Dynegy Gen Finance Co, LLC, Southwest Power Partners, LLC, Riverside Generation, Inc., Dynegy Renaissance Power, Inc., Bluegrass Generation, Inc., Dynegy Midwest Generation, Inc., RRP Company, Dynegy Power Services, Inc., and Dynegy Falcon Holdings Inc. (collectively, "Sellers"), the LS Entities received an aggregate of 95,000,000 shares of the Issuer's Class A common stock as a result of the conversion of 95,000,000 shares of the Issuer's Class B common stock then held by the LS Entities.
(3) Pursuant to the PSA, Sellers (i) sold to Buyers their interests in the entities that own the Sellers' Arlington Valley, Griffith, Bridgeport, Rocky Road, Tilton, Riverside/Foothills, Bluegrass and Renaissance generating facilities, as well as their interests in the entities that own a portion of and are constructing the Sandy Creek facility, and (ii) closed the transactions contemplated by a note purchase agreement, pursuant to which Dynegy Holdings Inc. issued to an affiliate of Buyers $235 million aggregate principal amount of 7.50 percent senior unsecured notes due 2015 (the "Senior Notes").
(4) In exchange for the ownership interests and the Senior Notes, Sellers received (i) approximately $970 million in cash (including $175 million of cash currently supporting a portion of the Sellers' equity commitment in connection with the Sandy Creek project), and (ii) 245,000,000 shares of the Issuer's Class B common stock held by the LS Entities, with the remaining 95,000,000 shares of the Issuer's Class B common stock held by the LS Entities converted to an equivalent number of shares of the Issuer's Class A common stock as stated above.
(5) Of the 95,000,000 shares of the Issuer's Class A common stock received by the LS Entities pursuant to the PSA, PIE I directly holds 29,669,786 shares as reported on this Form 4.

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