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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

June 27, 2006
Date of Report (Date of earliest event reported)


	Exact Name of Registrant as Specified in Its Charter; State of
Commission File	Incorporation; Address of Principal Executive Offices; and	IRS Employer
Number	Telephone Number	Identification Number

1-16169	EXELON CORPORATION (a Pennsylvania corporation) 10 South Dearborn Street — 37th Floor P.O. Box 805379 Chicago, Illinois 60680-5379 (312) 394-7398	23-2990190

1-1839	COMMONWEALTH EDISON COMPANY (an Illinois corporation) 440 South LaSalle Street Chicago, Illinois 60605-1028 (312) 394-4321	36-0938600

000-16844	PECO ENERGY COMPANY (a Pennsylvania corporation) P.O. Box 8699 2301 Market Street Philadelphia, Pennsylvania 19101-8699 (215) 841-4000	23-0970240

333-85496	EXELON GENERATION COMPANY, LLC (a Pennsylvania limited liability company) 300 Exelon Way Kennett Square, Pennsylvania 19348 (610) 765-6900	23-3064219

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Section 7 — Regulation FD
Item 7.01. Regulation FD Disclosure

On June 27, 2006, Exelon Corporation (Exelon) will participate in investor meetings at the Bank of America 2006 Utilities Mini-Conference in Chicago. Except for the revised slides attached as Exhibit 99 to this Current Report on Form 8-K, the materials that will be used in the meetings are the same as those previously filed with the Securities and Exchange Commission (SEC) in a Current Report on Form 8-K filed on May 23, 2006. During these meetings, Exelon will reaffirm its guidance for 2006 adjusted (non-GAAP) operating earnings per share of $3.00-$3.30. For additional information about the guidance and a reconciliation of adjusted (non-GAAP) operating earnings to GAAP earnings refer to the appendix to the slides included in the May 23, 2006 Form 8-K.

* * * * *

This combined Form 8-K is being furnished separately by Exelon, Commonwealth Edison Company (ComEd), PECO Energy Company (PECO) and Exelon Generation Company, LLC (Generation) (Registrants). Information contained herein relating to any individual registrant has been furnished by such registrant on its own behalf. No registrant makes any representation as to information relating to any other registrant.

Except for the historical information contained herein, certain of the matters discussed in this Report are forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that are subject to risks and uncertainties. The factors that could cause actual results to differ materially from the forward-looking statements made by a registrant include those factors discussed herein, as well as the items discussed in (a) the Registrants’ 2005 Annual Report on Form 10-K—ITEM 1A. Risk Factors, (b) the Registrants’ 2005 Annual Report on Form 10-K—ITEM 8. Financial Statements and Supplementary Data: Exelon—Note 20, ComEd—Note 17, PECO—Note 15 and Generation—Note 17, and (c) other factors discussed in filings with the SEC by the Registrants. Readers are cautioned not to place undue reliance on these forward-looking statements, which apply only as of the date of this Report. None of the Registrants undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this Report.

Section 9—Financial Statements and Exhibits
Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.


Exhibit No.		Description

99		Revised Slides

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


		EXELON CORPORATION
		PECO ENERGY COMPANY
		EXELON GENERATION COMPANY, LLC

		/s/ John F. Young John F. Young
		Executive Vice President, Finance and Markets,
		and Chief Financial Officer
		Exelon Corporation

		COMMONWEALTH EDISON COMPANY

		/s/ Robert K. McDonald Robert K. McDonald
		Senior Vice President, Chief Financial Officer, Treasurer and
		Chief Risk Officer
		Commonwealth Edison Company

June 27, 2006