EXHIBIT 99.1

Slide 1
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[Exelon logo]

Exelon Corporation
A Measure of Our Strength

J. Barry Mitchell
SVP & Treasurer

Banc One Capital Markets Fixed Income Utilities Conference, Chicago, IL
March 26, 2003




Slide 2
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[Exelon logo]

Forward-Looking Statements

This presentation contains certain forward-looking statements within the meaning
of the Private  Securities  Litigation  Reform Act of 1995. These statements are
based on management's  current  expectations  and are subject to uncertainty and
changes  in   circumstances.   Actual  results  may  vary  materially  from  the
expectations  contained herein.  The  forward-looking  statements herein include
statements  about future  financial and operating  results of Exelon.  Economic,
business,  competitive and/or regulatory  factors affecting Exelon's  businesses
generally  could cause actual results to differ  materially from those described
herein.  For a  discussion  of the factors  that could cause  actual  results to
differ materially,  please see Exelon's filings with the Securities and Exchange
Commission,   particularly  those  discussed  in  "Management's  Discussion  and
Analysis of Financial Condition and Results of Operations - Outlook" in Exelon's
2002 Annual  Report and those  discussed  in "Risk  Factors"  and  "Management's
Discussion  and Analysis of Financial  Condition and Results of  Operations"  in
Exelon Generation  Company,  LLC's Registration  Statement on Form S-4, Reg. No.
333-85496.   Readers  are  cautioned  not  to  place  undue  reliance  on  these
forward-looking   statements,   which   speak  only  as  of  the  date  of  this
presentation.  Exelon does not undertake any obligation to publicly  release any
revisions to these forward-looking statements to reflect events or circumstances
after the date of this presentation.





Slide 3
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[Exelon logo]

One Company, One Vision

Exelon  strives  to  build  exceptional  value - by  becoming  the best and most
consistently  profitable  electricity  and gas company in the United States.  To
succeed, we must....
- -LIVE UP TO OUR COMMITMENTS
- -PERFORM AT WORLD-CLASS LEVELS
- -INVEST IN OUR CONSOLIDATING INDUSTRY




Slide 4
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[Exelon logo]

What Is Exelon?

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                                                              U.S. Electric
                                           Exelon               Companies
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Retail Electric Customers               5.1 million                1st
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Nuclear Capacity                        16,000 MWs*                1st
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U.S. Capacity Resources                 43,000 MWs**          Among largest
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Revenues                               $15.0 billion               2nd
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Net Income                              $1.4 billion               1st
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Market Cap (as of 3/6/03)              $16.0 billion               3rd
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*Includes AmerGen investment.
**Includes AmerGen and Sithe investments.




Slide 5
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[Exelon logo]

Overview of Exelon Corporation

o Integrated business strategy
         o Successfully restructured utilities
         o Substantial low-cost generation fleet
         o Building national presence

o Strong, stable cash flows

o Continued focus on cost reduction

o Critical mass in customers and megawatts

o Commitment to solid investment-grade ratings





Slide 6
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[Exelon logo]

Three Core Businesses

                               Exelon Corporation
              ________________________|__________________
        |                                                |
Exelon Energy Delivery                            Exelon Ventures
        |                                                |
________________________                     ________________________
 |                     |                     |                       |
PECO Energy          ComEd            Exelon Generation           Exelon
Enterprises                                                      Enterprises

Electric and Gas Distribution             Generation
                                       Power Marketing        (Infrastructure
                                                                 services,
                                                                communications,
                                                            retail energy sales,
                                                               energy services

          Regulated                             Unregulated




Slide 7
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[Exelon logo]

Solid Financial Profile

Exelon Benefits from a Diversified Cash Stream




                  Exelon Corporation (BBB+/Baa2/BBB+)
         ________________________|________________________
         |                       |                        |
PECO Energy (A/A2/A)       ComEd (A-/A3/A-)    Exelon Generation (A-/Baa1/BBB+)

Historical and prospective commitment to solid credit quality

Note:  PECO Energy and ComEd ratings are for senior secured debt.




Slide 8
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[Exelon logo]

Earnings per Share

o 2002
         o Guidance = $4.45 - $4.85
         o Actual operating earnings = $4.83

o 2003
         o Guidance = $4.80 - $5.00




Slide 9
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[Exelon logo]

EED Companies:  ComEd and PECO

oStable, reliable cash flows

oSuccessful utility restructuring

oIncreased cost savings

oFull-requirements contracts

oImproved operating performance




Slide 10
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[Exelon logo]

Exelon Generation

o Exelon Nuclear, Exelon Power, Exelon Power Team

o World-class  nuclear   operation
         o 92.7% capacity  factor  for  2002
         o Average refueling outage = 22 days

o Low-cost nuclear provider - 2 cents/kWh all-in cost "goal"

o Physical power marketing

o Full-requirements contracts





Slide 11
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[Exelon logo]

Current Issues

o Ability to absorb increased pension contributions

o ComEd - far-reaching regulatory agreement

o Continued savings - The Exelon Way
         oCash flow emphasis

o Sithe restructuring

o M&A outlook




Slide 12
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[Exelon logo]

Our Vision = Value Creation

o        Capitalize on strengths
o        Focus on fundamentals and discipline
o        Committed to performance




Slide 13
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[Exelon logo]

Q & A