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

                                October 28, 2004
                Date of Report (Date of earliest event reported)





Commission File     Exact Name of Registrant as Specified in Its Charter; State of   IRS Employer
Number              Incorporation; Address of Principal Executive Offices; and      Identification Number
                    Telephone Number
- --------------      --------------------------------------------------------------  ---------------------
                                                                                  
                    EXELON CORPORATION                                               23-2990190
1-16169             (a Pennsylvania corporation)
                    10 South Dearborn Street--37th Floor
                    P.O. Box 805379
                    Chicago, Illinois 60680-5379
                    (312) 394-7398


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

- --------------      --------------------------------------------------------------  ---------------------




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:

[ ]  Written  communications  pursuant to Rule 425 under the  Securities Act (17
     CFR 230.425)
[ ]  Soliciting  material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)
[ ]  Pre-commencement   communications  pursuant  to  Rule  14d-2(b)  under  the
     Exchange Act (17 CFR 240.14d-2(b))
[ ]  Pre-commencement   communications  pursuant  to  Rule  13e-4(c)  under  the
     Exchange Act (17 CFR 240.13e-4(c))





Section 8 - Other Events
Item 8.01. Other Events.
Section 9 - Financial Statements and Exhibits
Item 9.01(c) - Financial Statements and Exhibits.



On October 28, 2004,  Exelon Generation  Company,  LLC's Nuclear division issued
the press release  attached hereto as Exhibit 99 concerning the license renewals
of its  Dresden  and Quad  Cities  nuclear  plants,  which were  approved by the
Nuclear Regulatory Commission on that date.

                                      *****

This combined Form 8-K is being filed separately by Exelon Corporation  (Exelon)
and Exelon  Generation  Company,  LLC  (Generation)  (Registrants).  Information
contained  herein  relating to any individual  registrant has been filed 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'  2003 Annual Report on Form 10-K--ITEM 7.  Management's  Discussion
and Analysis of Financial Condition and Results of Operations--Business  Outlook
and the  Challenges  in Managing Our  Business for each of Exelon,  Commonwealth
Edison  Company  (ComEd),  PECO Energy Company  (PECO) and  Generation,  (b) the
Registrants'  2003 Annual Report on Form 10-K--ITEM 8. Financial  Statements and
Supplementary   Data:   Exelon--Note  19,  ComEd--Note  15,  PECO--Note  14  and
Generation--Note  13 and (c) other factors  discussed in filings with the United
States Securities and Exchange Commission (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.







                                   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
                            EXELON GENERATION COMPANY, LLC

                            /s/ Robert S. Shapard
                            -------------------------------------
                            Robert S. Shapard
                            Executive Vice President and Chief Financial Officer
                            Exelon Corporation



October 29, 2004

                                                           [EXELON LOGO OMITTED]
- --------------------------------------------------------------------------------
                                                                      Exhibit 99
Press Release

From:       Exelon Nuclear
            4300 Winfield Road
            Warrenville, IL 60555

Contact:     Bob Osgood (Dresden) 815-416-3743            FOR IMMEDIATE RELEASE
             Bill Stoermer (Quad Cities) 309-227-2751     ---------------------
             Ann Mary Carley 630-657-3602                    October 28, 2004

                      NRC Approves 20-Year License Renewals
                        For Dresden, Quad Cities Stations

WARRENVILLE, Ill. - The U.S. Nuclear Regulatory Commission has approved 20-year
extensions of the operating licenses for Exelon Nuclear's Dresden and Quad
Cities generating stations, the NRC announced today.

Exelon Nuclear is the largest operator of commercial nuclear power stations in
the nation and the third largest worldwide, with 17 reactors in three states.
Eleven of the reactors are in Illinois, including two at Dresden in Grundy
County and two at Quad Cities in Cordova.

The NRC has approved license renewals for 30 U.S. nuclear reactors, including
six belonging to Exelon Nuclear, and is reviewing renewal applications for 14
more. In addition to the four announced today, the agency last year extended
licenses for the company's two reactors at the Peach Bottom Atomic Power Station
in Pennsylvania.

The original 40-year license for Dresden Unit 2 was to expire in 2009. It has
been extended to 2029. The Unit 3 license was to expire in 2011 and has been
extended to 2031. Dresden Unit 1 is no longer in operation.

The original operating licenses for both Quad Cities Units 1 and 2 were to
expire in 2012. They have been extended to 2032.

"This decision means Dresden and Quad Cities will continue to provide safe,
reliable, carbon-free electricity to customers in northern Illinois and eastern
Iowa for another two decades," said Exelon Nuclear President and Chief Nuclear
Officer Chris Crane. "And we are doing it without turning a spade of earth. This
is helping America to achieve energy independence and adding to the Midwest's
inventory of safe, inexpensive electricity."

Dresden and Quad Cities stations' significant contributions to their surrounding
communities will continue as well. Each station employs about 700 people with an
annual payroll of approximately $50 million. Most of these employees and their
families live in the communities surrounding the plants and contribute to the
local economy.



Development of the license renewal application for both stations began in 2000
and required four years of extensive engineering, safety and environmental
analysis, NRC review and public input. Engineers reviewed more than 150 plant
systems and about 120,000 components at each site to ensure that they are
capable of running for an additional 20 years.

As part of the reviews, the NRC held public meetings and verified its analyses
with local county, state and federal agencies. Experts from national
laboratories, environmental agencies and historical preservation societies were
consulted during the process.

"The safety reviews determined that Dresden and Quad Cities have solid programs
in place to provide for the continued safe and reliable operation and
maintenance of the plants," Crane said. "The environmental reviews concluded
that any environmental impacts from extending these licenses would be minimal."

Each of the four General Electric boiling water reactors at Dresden and Quad
Cities produce more than 900 megawatts of power at full power. A megawatt is
equal to one million watts.

Mid-American Energy Holdings of Des Moines, Iowa owns 25 percent of the Quad
Cities station.

                                       ###

Exelon Corporation is one of the nation's largest electric utilities with
approximately 5.1 million customers and more than $15 billion in annual
revenues. The company has one of the industry's largest portfolios of
electricity generation capacity, with a nationwide reach and strong positions in
the Midwest and Mid-Atlantic. Exelon distributes electricity to approximately
5.1 million customers in northern Illinois and Pennsylvania and gas to more than
460,000 customers in the Philadelphia area. Exelon is headquartered in Chicago
and trades on the NYSE under the ticker EXC.