SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Pappas Christopher D (Last) (First) (Middle) C/O ALLEGHENY ENERGY, INC. 800 CABIN HILL DRIVE (Street) GREENSBURG PA 15601 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol ALLEGHENY ENERGY, INC [ AYE ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 09/27/2010
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, $1.25 par value	09/27/2010		A		56.177	A	(1)	12,306.512	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Phantom Stock(2)	(3)	09/27/2010		A		9.106		(3)	(3)	Common Stock	9.106	(3)	1,486.641	D

Explanation of Responses:

1. Issued in connection with the payment of a dividend on the Issuer's common stock, par value $1.25 per share (the "Common Stock") with respect to shares of Common Stock that Mr. Pappas has elected to defer under the Issuer's Revised Plan for Deferral of Compensation of Directors.

2. Under the Issuer's Revised Plan for Deferral of Compensation of Directors, non-employee members of the Issuer's Board of Directors (the "Board") may elect to defer receipt of all or a part of the cash portion of the director fees to which they become entitled in connection with their service on the Board and may opt to invest all or a portion of any such deferred amounts into a phantom stock fund maintained by the Issuer. Mr. Pappas previously elected to defer receipt the cash portion of the fees payable to him and to invest such deferred amounts in the Issuer's phantom stock fund. Dividends on such deferred amounts are paid in additional units of phantom stock.

3. Each unit of phantom stock is the economic equivalent of one share of Common Stock. The units of phantom stock are payable in cash upon the termination of Mr. Pappas's service on the Board.

	/s/ Amanda J. Skov, Attorney-in-Fact	09/29/2010
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (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).
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