UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM 11-K


               [X] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


                   For the fiscal year ended December 31, 2001


                                       OR


             [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


                         Commission file number: 1-16169


                    PECO Energy Company Employee Savings Plan
                    Exelon Corporation Employee Savings Plan
                            (Full title of the plan)


                               EXELON CORPORATION
                      10 South Dearborn Street - 37th Floor
                                 P.O. Box 805379
                          Chicago, Illinois 60680-5379
         (Name of the issuer of the securities held pursuant to the plan
               And the address of its principal executive offices)















                                         TABLE OF CONTENTS



                                                                                        Page No.

                                                                                         
PECO Energy Company Employee Savings Plan
Independent Auditors' Reports                                                               2
Financial Statements:
     Statements of Net Assets Available for Benefits,
         as of March 31, 2001 and December 31, 2000                                         4
     Statements of Changes in Net Assets Available for
         Benefits for the three months ended March 31, 2001
         and the year ended December 31, 2000                                               5
Notes to Financial Statements                                                               6


Exelon Corporation Employee Savings Plan
Independent Auditors' Report                                                               13
Financial Statements:
     Statements of Net Assets Available for Benefits,
         as of December 31, 2001 and 2000                                                  14
     Statements of Changes in Net Assets Available for
         Benefits for the years ended December 31, 2001 and 2000                           15
Notes to Financial Statements                                                              16
Supplemental Schedules:
     Schedule of Assets Held for Investment Purposes as of
         December 31, 2001,  Schedule H, Part IV, Item 4i, Form 5500                       25
     Schedule of Transactions in Excess of 5% of the Current Value
         of the Plan Assets for the Year Ended December 31, 2001                           28


List of Exhibits                                                                           29

Signatures                                                                                 30

Exhibits                                                                                   31



                                       1



INDEPENDENT AUDITOR'S REPORT

To the Participants  and the  Compensation  Committee of the PECO Energy Company
Employee Savings Plan:

We have audited the accompanying  statement of net assets available for benefits
of the PECO ENERGY  COMPANY  EMPLOYEE  SAVINGS PLAN (the "Plan") as of March 31,
2001, and the related  statement of changes in net assets available for benefits
for the three months ended March 31, 2001.  These  financial  statements are the
responsibility  of the Plan's  management.  Our  responsibility is to express an
opinion  on these  financial  statements  based  on our  audits.  The  financial
statements  of the Plan as of December 31, 2000 were  audited by other  auditors
whose  report dated June 29, 2001,  expressed  an  unqualified  opinion on those
statements.

We conducted our audit in accordance with auditing standards  generally accepted
in the  United  States of  America.  Those  standards  require  that we plan and
perform the audit to obtain  reasonable  assurance  about  whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  An audit also includes assessing the accounting principles used and
significant  estimates  made by  management,  as well as evaluating  the overall
financial  statement  presentation.   We  believe  that  our  audit  provides  a
reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material  respects,  the net assets available for benefits of the Plan as of
March 31,  2001,  and the changes in net assets  available  for benefits for the
three months then ended,  in conformity  with  accounting  principles  generally
accepted in the United States of America.





                                             WASHINGTON, PITTMAN & McKEEVER, LLC

Chicago, Illinois
June 24, 2002


                                       2



                          Independent Auditors' Report


To the Participants and the Compensation
Committee of the PECO Energy Company
Employee Savings Plan:

We have audited the accompanying  statement of net assets available for benefits
of the PECO Energy Company Employee Savings Plan (the "Plan") as of December 31,
2000, and the related  statement of changes in net assets available for benefits
for the year  ended  December  31,  2000.  These  financial  statements  are the
responsibility  of the Plan's  management.  Our  responsibility is to express an
opinion on these financial statements based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards  require that we plan and perform the audit to obtain reasonable
assurance   about  whether  the  financial   statements  are  free  of  material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material  respects,  the net assets available for benefits of the Plan as of
December 31, 2000, and the changes in net assets  available for benefits for the
year then ended, in conformity with generally accepted accounting principles.



Hill, Taylor LLC

Chicago, Illinois
June 29, 2001



                                       3


                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                 STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS

                   AS OF MARCH 31, 2001 AND DECEMBER 31, 2000



                                           March 31,              December 31,
                                             2001                    2000
                                        ----------------     ------------------
Assets
  Investments, at fair value                        $ -           $777,865,912
                                        ----------------     ------------------

Net assets available for benefits                   $ -           $777,865,912
                                        ================     ==================
































         The accompanying Notes to Financial Statements are an integral
                         part of the above statements.

                                      -4-





                                   PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                           STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS

                FOR THE THREE MONTHS ENDED MARCH 31, 2001 AND THE YEAR ENDED DECEMBER 31, 2000


                                                                 Three Months
                                                                     Ended                    Year Ended
                                                                   March 31,                 December 31,
                                                                     2001                        2000
                                                               ------------------         -------------------
Additions:
                                                                                           
     Employee contributions                                          $11,669,746                 $34,369,918
     Employer contributions                                            4,621,521                  10,823,678
                                                               ------------------         -------------------

            Total contributions                                       16,291,267                  45,193,596
                                                               ------------------         -------------------

     Investment income:
        Interest                                                         579,264                   3,143,403
        Dividends                                                      2,187,303                 100,180,002
        Net depreciation in fair
          value of investments                                       (62,953,838)               (127,302,628)
        Interest on loan repayments                                      326,457                   1,141,153
                                                               ------------------         -------------------

            Total Investment losses                                  (59,860,814)                (22,838,070)
                                                               ------------------         -------------------

            Total additions                                          (43,569,547)                 22,355,526
                                                               ------------------         -------------------

Deductions:
     Distributions to participants                                    13,231,211                  57,215,542
                                                               ------------------         -------------------

            Total deductions                                          13,231,211                  57,215,542
                                                               ------------------         -------------------

Net decrease before transfers                                        (56,800,758)                (34,860,016)

Net asset transferred to other plans                                (721,065,154)                          -
                                                               ------------------         -------------------

Net decrease after transfers                                        (777,865,912)                (34,860,016)

Net assets available for benefits:
     Beginning of year                                               777,865,912                 812,725,928
                                                               ------------------         -------------------

     End of year                                                             $ -                $777,865,912
                                                               ==================         ===================


         The accompanying Notes to Financial Statements are an integral part of the above statements.




                                                      -5-




                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                          NOTES TO FINANCIAL STATEMENTS



1.       Description of the PECO Energy Company Employee Savings Plan:

The following  description of the PECO Energy Company Employee Savings Plan (the
"Plan") provides only general information. Participants should refer to the Plan
agreement for a complete description of the Plan's provisions.

General - On January 1, 2001, Exelon Corporation became the sponsor of the Plan.
Effective  March 30,  2001,  the Plan was merged with and into the  Commonwealth
Edison  Employee  Savings and Investment Plan and the resulting Plan was amended
and restated as the Exelon  Corporation  Employee  Savings Plan ("Savings  Plans
Merger").  For  information  about  the  provisions  of the  Exelon  Corporation
Employee Savings plan, see the plan agreement of the Exelon Corporation  Savings
Plan.

The Plan was a  trusteed  defined  contribution  plan.  The Plan was  formed  on
January 1, 1984 for the purpose of allowing  eligible  employees  of PECO Energy
Company and certain of its  affiliates  ("PECO") to reduce their taxable  income
pursuant to Section 401(k) of the Internal Revenue Code. The Plan was subject to
the provisions of the Employee Retirement Income Security Act of 1974 (ERISA).

On October 20, 2000, Exelon Corporation ("Exelon") became the parent corporation
of PECO as a result of the  completion of the  transactions  contemplated  by an
Agreement  and Plan of Exchange  and  Merger,  as  amended,  among PECO,  Unicom
Corporation, and Exelon.

Effective May 1, 2000, all new employees classified as "regular," "part-time" or
"probationary" became eligible to participate in the Plan immediately.  Prior to
May  1,  2000,   all  employees   classified  as   "regular,"   "part-time"   or
"probationary" became eligible to participate in the Plan upon completion of six
months of service.

Contributions - Prior to the Savings Plans Merger, Plan participants  elected to
have PECO make  contributions  to the Plan on their behalf.  Such  contributions
were made by  authorizing  PECO to  withhold  from the  participants'  salary an
amount  equal  to the  contribution  to be  made.  Participants  could  elect to
authorize PECO to contribute from 1% to 17% of their base salary  depending upon
their salary level, up to certain IRS limits.

Effective  September 1, 2000,  PECO's  matching  contribution  increased from 50
cents to one dollar on each  dollar of  employee  contributions  up to 5 % of an
employee's  base  salary.  Prior to  September  1,  2000,  PECO made a  matching
contribution of 50 cents on each dollar of employee  contributions  up to 5 % of
an employee's  base salary  deposited into the Plan.  Under the Plan,  employees
were always fully vested on employer contributions.


                                      -6-




                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)



1.     Description of the PECO Energy Company Employee Savings Plan (Continued):

Contributions (Continued)

Fidelity  Investments was the Record Keeper and Trustee for the Plan at the time
of the Savings Plans Merger.

Under the Plan, participants could elect that their contributions be invested in
one or more of the  following  generic  categories - Growth,  Growth and Income,
Small   Capitalization   Growth,   Equity  Income,  Money  Market/Stable  Value,
International,  Fixed Income,  Balanced Asset  Allocation or Company Stock.  See
Note 3 - Investments.

Under the  Plan,  distributions  and  exchanges  could be made on a daily  basis
provided the market was open and the request was  confirmed by the Record Keeper
prior to 4:00 p.m. EST.

By giving notice to the Plan Record Keeper and subject to rules  established  by
the Plan Administrator, participants could suspend or change the amount of their
contributions and exchange their investments among the investment funds.

Participant  Accounts  -  Each  participant's  account  was  credited  with  the
participant's contribution,  PECO's contribution and an allocation of the Plan's
earning.

Payment of Benefits - Upon termination of service due to death,  disability,  or
retirement, a participant was entitled to a benefit amount equal to the value of
the participant's  account.  This benefit could be paid by various methods based
upon certain elections made by the participant pursuant to the provisions of the
Plan. For termination of service for other reasons,  a participant could receive
the value of his or her account as a lump-sum distribution.

Participant  Loans - Effective March 30, 2001, when the Plan was merged with and
into  the  Commonwealth   Edison  Employee  Savings  and  Investment  Plan,  all
outstanding  loan  balances  of the Plan were  transferred  to the  Commonwealth
Edison Employee Savings and Investment Plan. The terms of the outstanding  loans
of the  Plan  were not  altered  when  transferred  to the  Commonwealth  Edison
Employee Savings and Investment Plan.

The Plan allowed  participants to obtain loans.  Participants could borrow up to
50% of their  account  balances  subject  to a minimum  of $500 and a maximum of
$50,000.  Outstanding  loans have terms of up to 30 years for the  purchase of a
primary  residence or one to four years for other  purposes and bear interest at
rates  determined  by the Plan  Administrator  based on similar rates charged by
regional   commercial   lenders.   Outstanding  loans  are  repayable  in  equal
installments by means of payroll deductions.

                                      -7-


                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


1. Description of the PECO Company Employee Savings Plan (Continued):

Participant Loans (Continued)

A participant  could not have more than one loan outstanding at any time or take
more than one loan in a plan year.

2. Summary of Significant Accounting Policies:

Basis of Accounting

The Plan follows the accrual  method of accounting  for recording  contributions
from participants and Employers, income from investments, purchases and sales of
investments, and administrative expenses.

Valuation of Investments and Income Recognition
Investments in mutual funds and the Managed Income Portfolio II fund were valued
at the  reported  net asset  value on the last day of the  respective  reporting
periods.  The Fidelity Money market Fund is valued at the cost of  contributions
made plus  earnings  less  withdrawals.  The Exelon  Common Stock Fund is valued
primarily using the closing stock price of Exelon.  The insurance  contract is a
benefit-responsive  guaranteed  investment  contract  and is valued at  contract
value.  Contract  value  represents  the cost of  contributions  made  under the
contract  plus  earnings at the contract  rate less  withdrawals.  Purchases and
sales of investments  are reflected on a trade-date  basis.  Dividend  income is
recorded when declared payable.

Net Appreciation (Depreciation) in Investments
The Plan  presents  in the  statement  of changes in net  assets  available  for
benefits  the  net   appreciation/(depreciation)   in  the  fair  value  of  its
investments  which  consists of the realized  gains or losses and the unrealized
appreciation/(depreciation) on those investments.

Distributions
Distributions were recorded when paid.

General and Administrative Expenses:
All administrative fees were paid by PECO on behalf of the Plan.


                                      -8-

                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


2. Summary of Significant Accounting Policies (Continued):

Use of Estimates
The preparation of financial  statements in conformity  with generally  accepted
accounting principles requires management to make estimates and assumptions that
affect the reported  amounts of assets,  liabilities  and changes  therein,  and
disclosure of contingent  assets and  liabilities.  Actual  results could differ
from those estimates.

Risk and Uncertainties
The Plan provided for various  investments options in any combination of stocks,
bonds, fixed income securities,  mutual funds, and other investment  securities.
Investment  securities are exposed to various risks, such as interest rate risk,
market risk and credit risk.  Due to the level of risk  associated  with certain
investment  securities  and the level of  uncertainty  related to changes in the
value of investment securities,  it is at least reasonably possible that changes
in risks in the near term would materially affect participants' account balances
and the amounts  reported in the statement of net assets  available for benefits
and the statement of changes in net assets available for benefits.

Recent Accounting Pronouncements
In June 1998, the Financial  Accounting  Standards Board (FASB) issued Statement
of Financial  Accounting  Standards  (SFAS) No. 133  "Accounting  for Derivative
Instruments  and Hedging  Activities,"  to establish  accounting  and  reporting
standard for derivatives.  SFAS No. 133 was subsequently amended by SFAS No. 137
and SFAS No. 138. These new standards require that all derivatives be recognized
at their fair value depending upon the intended use of the derivative.  The Plan
was  required to adopt SFAS No. 133, as amended,  in fiscal year ended  December
31, 2001.

The Plan's  utilization  of derivative  instruments  for trading or  non-trading
purposes is minimal,  and the  provisions  of these  statements  are not applied
because the impact on the Plan's financial statements is not material.

3. Investments:

At the time of the Savings Plans Merger,  the Plan investments  consisted of the
following types of funds:

Growth - The growth mutual funds invested primarily in common stocks of U.S. and
international  companies  that were  considered  undervalued or out of favor and
whose products showed potential for improvement.  Investments  could include any
type of securities that may produce capital growth.  The goal of these funds was
to provide capital growth over the long-term.

                                      -9-

                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


3. Investments (Continued):

Growth and Income - The growth and income  mutual  fund  invested  primarily  in
common stocks, focusing on larger, more established companies.  Investments were
diversified among many different types of companies and industries.  The goal of
these funds was to provide capital growth and income over the long-term.

Small Capitalization - The small  capitalization  growth fund invested primarily
in stocks of companies which had market  capitalization  of less than $1 billion
at the time of  investment.  The fund  tried to keep at least  one-third  of its
assets in stocks of companies with market capitalization of $550 million or less
and also  invested  up to 25% of its assets in foreign  securities.  This fund's
goal was to provide capital growth over the long-term.

Equity Income - The equity income mutual fund invested primarily in attractively
priced, dividend paying,  income-producing  equity securities;  including common
and preferred stocks,  convertible securities,  and debt securities (bonds). The
goal of this fund was to invest for capital growth and current income.

Money  Market/Stable  Value Fund - The money  market/stable  value fund invested
primarily in investment grade, short-term,  U.S. dollar-denominated money market
securities  of domestic and foreign  issuers.  Investments  included  short-term
corporate obligations, U.S. government obligations, and certificates of deposit.
The goal of this fund was to preserve participants' principal, maintain a stable
price, and provide current income.

International - The  international  fund invested  primarily in common stocks of
companies in developed markets outside the United States.  The goal of this fund
was to provide capital growth over the long-term by investing internationally.

Fixed Income Fund - This fund was comprised of both contracted rate  investments
through a managed income portfolio as well as insurance contracts.  The contract
rate was  established  at the  commencement  of the contract  and remains  fixed
(except for certain  conditions) at the rate until  maturity.  The contract rate
reflected market and other conditions at the commencement of the contract.

Balanced  Fund - The balanced fund  invested  primarily in a diversified  mix of
common  and  preferred  stocks,   and  investment  grade  bonds.  The  fund  was
diversified  among many  sectors  and  industries.  The goal of this fund was to
provide  regular  income,  conservation  of  principal  and an  opportunity  for
long-term growth of principal and income.


                                      -10-

                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


3. Investments (Continued):

Asset Allocation Fund - The asset allocation funds invested primarily in a blend
of stocks, bonds, and short-term  investments based on a target retirement date.
The funds would gradually adopt a more conservative  asset allocation over time,
and therefore their target asset allocation  percentages  would change to become
more  conservative.  The goal of these funds was to seek to provide a high total
return while preserving principal as the funds approach maturity.

Company Common Stock Fund - This fund invested  primarily in Exelon common stock
and a small amount of short-term  investments which enabled  participants to buy
or  sell  without  the  usual  trade  settlement   period  of  individual  stock
transactions.  Before Exelon became the parent of PECO, the Company Common Stock
category represented primarily PECO's Common Stock.

As of March 31, 2001 and  December  31,  2000,  respectively,  the Plan held the
following investments, each of which accounted for more than 5% of the total net
assets available for benefits:



                                                March 31,              December 31,
Investments                                        2001                    2000
---------------------------------------------------------------     -------------------
                                                                   
Legg Mason NAV Value Trust Fund             $                -           $ 275,827,615
Fidelity Contrafund                                          -             178,449,811
Fidelity Fund                                                -              52,138,740
Exelon Common Stock Fund                                     -              49,172,716
Franklin Small Capital Growth Fund                           -              39,100,637


During the three  months  ended March 31, 2001 and the year ended  December  31,
2000, the Plan's  investments  (including gains and losses on investments bought
and sold,  as well as held  during  the year)  depreciated  by  $62,953,838  and
$127,302,628, respectively as follows:


                                                      Three Months Ended
                                                        March 31, 2001                  Year 2000
                                                    -----------------------       ----------------------
                                                                                  
Mutual Funds                                               $  (59,937,592)              $ (152,392,489)
Common Stock                                                   (3,016,246)                 25,089,861
                                                    -----------------------       ----------------------

     Total                                                 $  (62,953,838)              $ (127,302,628)
                                                    =======================       ======================




                                      -11-

                    PECO ENERGY COMPANY EMPLOYEE SAVINGS PLAN

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


4. Plan Termination:

Under the Plan,  PECO could  terminate the Plan in whole or in part at any time.
Any such  termination,  partial  termination or  discontinuance of contributions
could be effected only upon condition that such action was taken as could render
it  impossible  for any  parts  of the  assets  of the Plan to be used  for,  or
diverted to, purposes other than the exclusive  benefit of the Plan participants
and their beneficiaries.

5. Tax Status:

The Internal  Revenue Service had determined and informed PECO that the Plan was
qualified under Sections 401(a) and 401(k) of the Internal Revenue Code and that
the Plan was exempt from federal income tax under Section 501(a) by letter dated
April  15,  1995.  The  Plan had  been  amended  since  receiving  the  original
determination  letter,  however,  PECO  believes  that the Plan was designed and
operated in compliance with the applicable  requirements of the Internal Revenue
Code.

6. Plan Merger:

Effective  March 30,  2001,  the Plan was merged with and into the  Commonwealth
Edison  Employee  Savings and Investment Plan and the resulting Plan was amended
and restated as the Exelon  Corporation  Employee  Savings  Plan. As a result of
this  merger,  $721,065,154  representing  the Plan's net assets as of March 30,
2001 were transferred out as follows:

           Exelon Corporation Employee Savings Plan          $ 720,059,169
           EIS Employee Savings Plan                             1,005,985
                                                           ------------------

                                                             $ 721,065,154
                                                           ==================


                                      -12-




INDEPENDENT AUDITOR'S REPORT

To the Exelon Corporation
   Employee Savings Plan Committee:

We have audited the accompanying statements of net assets available for benefits
of the EXELON CORPORATON EMPLOYEE SAVINGS PLAN as of December 31, 2001 and 2000,
and the related  statements of changes in net assets  available for benefits for
the years then ended.  These financial  statements are the responsibility of the
Plan's  management.  Our  responsibility  is to  express  an  opinion  on  these
financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the  United  States of  America.  Those  standards  require  that we plan and
perform the audits to obtain  reasonable  assurance  about whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  An audit also includes assessing the accounting principles used and
significant  estimates  made by  management,  as well as evaluating  the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all  material  respects,  the net assets  available  for  benefits of the EXELON
CORPORATION  EMPLOYEE  SAVINGS  PLAN as of December  31, 2001 and 2000,  and the
changes in net assets  available  for  benefits  for the years  then  ended,  in
conformity with accounting principles generally accepted in the United States of
America.

Our  audits  were  made for the  purpose  of  forming  an  opinion  on the basic
financial statements taken as a whole. The supplemental schedules of assets held
for  investment  purposes,  and reportable  transactions  as of and for the year
ended December 31, 2001,  are presented for purposes of additional  analysis and
are not a required part of the basic financial  statements but are supplementary
information  required by the  Department  of Labor's Rules and  Regulations  for
Reporting and Disclosure  under the Employee  Retirement  Income Security Act of
1974, as amended.  These  supplemental  schedules are the  responsibility of the
Plan's  management.  The  supplemental  schedules  have  been  subjected  to the
auditing procedures applied in the audits of the basic financial statements and,
in our opinion, are fairly stated, in all material respects,  in relation to the
basic financial statements taken as a whole.



                                             WASHINGTON, PITTMAN & McKEEVER, LLC

Chicago, Illinois
June 24, 2002



                                      -13-




                                         EXELON CORPORATION EMPLOYEE SAVINGS PLAN

                                      STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS

                                                DECEMBER 31, 2001 AND 2000

                                                                                2001                             2000
                                                                     ----------------------------     ---------------------------
ASSETS

INVESTMENTS, AT CURRENT VALUE:

                                                                                                          
          Exelon Corporation Common Stock                                       $ 111,985,000.00                $ 102,220,705.00
          Registered Investment Companies                                          1,367,959,036                     887,529,219
          Collective Institutional Investment Trust Funds                            463,610,119                     344,030,149
          Guaranteed Investment Contracts                                            148,311,143                     174,645,495
          Participant Loans                                                           64,150,587                      46,322,514
                                                                     ----------------------------     ---------------------------

                    Total Investments                                              2,156,015,885                   1,554,748,082
                                                                     ----------------------------     ---------------------------

RECEIVABLES:
     Employer Contributions                                                                    -                          49,627
     Employee Contributions                                                                    -                          91,836
     Accrued Dividends and Interest                                                        1,873                           8,561
     Due from Broker for Securities Sold                                                 288,890                               -
     Other Receivables                                                                   130,440                          92,251
                                                                     ----------------------------     ---------------------------
                                                                                         421,203                         242,275
                                                                     ----------------------------     ---------------------------

          TOTAL ASSETS                                                           $ 2,156,437,088                 $ 1,554,990,357
                                                                     ----------------------------     ---------------------------

LIABILITIES

     Due to Broker for Securities Purchased                                                  $ -                       $ 590,195
     Accrued Administrative Expenses and Other
          Liabilities                                                                    540,924                         358,411
                                                                     ----------------------------     ---------------------------

          TOTAL LIABILITIES                                                              540,924                         948,606
                                                                     ----------------------------     ---------------------------

NET ASSETS AVAILABLE FOR BENEFITS                                                $ 2,155,896,164                 $ 1,554,041,751
                                                                     ============================     ===========================



The accompanying Notes to Financial Statements are an integral part of the above statements.



                                                            14






                                         EXELON CORPORATION EMPLOYEE SAVINGS PLAN

                                STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS

                                      FOR THE YEARS ENDED DECEMBER 31, 2001 AND 2000


                                                                             2001                         2000
                                                                    -----------------------      ------------------------
ADDITIONS TO NET ASSETS ATTRIBUTED TO:

                                                                                                       
INVESTMENT INCOME:
     Dividends on Unicom Corporation
          Common Stock                                                         $ 3,936,916                   $ 2,059,564
     Income from Investment in Group, Mutual and
          Collective Investment Trust Funds                                     46,040,616                    92,133,671
     Income from Participant Loans                                               5,078,979                     3,892,796
                                                                    -----------------------      ------------------------

     Total Investment Income                                                  $ 55,056,511                  $ 98,086,031
                                                                    -----------------------      ------------------------

Net Realized (Loss)Gain on Investments                                         (73,327,970)                   49,484,160

Net Unrealized Depreciation of Investments                                    (147,703,664)                 (128,934,630)
                                                                    -----------------------      ------------------------

NET DEPRECIATION OF INVESTMENTS                                               (221,031,634)                  (79,450,470)
                                                                    -----------------------      ------------------------

CONTRIBUTIONS:
     Participants                                                               96,543,087                    65,007,062
     Employers                                                                  50,582,679                    31,102,322
     Rollovers                                                                   6,522,082                     3,329,015
                                                                    -----------------------      ------------------------

     Total Contributions                                                       153,647,848                    99,438,399
                                                                    -----------------------      ------------------------

              TOTAL ADDITIONS                                                $ (12,327,275)                $ 118,073,960
                                                                    -----------------------      ------------------------


DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO:

WITHDRAWALS BY PARTICIPANTS                                                  $ 105,341,526                  $ 95,385,363

DIVIDEND DISTRIBUTIONS                                                           3,936,916                     2,059,564

ADMINISTRATIVE EXPENSES                                                          1,032,875                     1,074,990
                                                                    -----------------------      ------------------------

              TOTAL DEDUCTIONS                                               $ 110,311,317                  $ 98,519,917
                                                                    -----------------------      ------------------------

NET (DECREASE) INCREASE BEFORE TRANSFERS                                      (122,638,592)                   19,554,043

ASSETS TRANSFERRED FROM OTHER PLANS                                            724,493,005                             -

ASSETS TRANSFERRED TO OTHER PLANS                                                        -                   (97,706,021)
                                                                    -----------------------      ------------------------

NET INCREASE (DECREASE) AFTER TRANSFERS                                        601,854,413                   (78,151,978)

NET ASSETS AVAILABLE FOR BENEFITS:

              BEGINNING OF YEAR                                              1,554,041,751                 1,632,193,729
                                                                    -----------------------      ------------------------

              END OF YEAR                                                  $ 2,155,896,164               $ 1,554,041,751
                                                                    =======================      ========================



               The accompanying Notes to Financial Statements are an integral part of the above statements.



                                                            15




                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                          NOTES TO FINANCIAL STATEMENTS


 (1)  Description of Plan. The following  description of the Exelon  Corporation
Employee Savings Plan (the "Plan") is provided for general information  purposes
only.  The  official  text of the  Plan,  as  amended,  should  be read for more
complete information.

              a.  General.  The  Plan was  established  by  Commonwealth  Edison
Company,  effective  March 1, 1983, to provide a systematic  savings program for
eligible  employees and to supplement such savings with Employer  contributions.
On March 30, 2001 the  Commonwealth  Edison Employee Savings and Investment Plan
was combined with the PECO Energy  Company  Employee  Savings Plan to become the
Exelon Corporation  Employee Savings Plan. The Plan is subject to the provisions
of the Employee Retirement Income Security Act of 1974, as amended (ERISA),  and
the Internal Revenue Code of 1986, as amended (the "Code").

              The Plan provides that any regular employee of Exelon  Corporation
(the  "Corporation")  and any other affiliated company that adopts the Plan with
the consent of the Corporation, is eligible to elect to participate in the Plan.
There were 24,532 and 17,075  participants  in the Plan at December 31, 2001 and
2000, respectively.

              The Corporation is the  administrator of the Plan and has the sole
authority to appoint and remove members of the Plan Committee,  the Trustee, and
any  investment  manager  which may be  provided  for under the Trust.  The Plan
Committee has the  responsibility  for  day-to-day  administration  of the Plan.
Fidelity  Management Trust Company is the Plan Trustee and Fidelity  Investments
Institutional Operations Company, Inc. is the Plan recordkeeper.

              b.  Contributions.   The  Plan  permits  management  employees  to
contribute  between  1% and 20% of their  normal  base pay each pay  period on a
pre-tax  basis,  an  after-tax  basis or a  combination  of the two.  For Exelon
subsidiaries that have adopted the Plan on behalf of their management employees,
the  company  matches  contributions  at a  rate  of  100%  of the  first  5% of
contributions (whether pre-tax or after-tax).

              The Plan permits union-represented employees to contribute between
1% and 15% of the sum of  their  normal  base  pay plus  certain  overtime  on a
pre-tax  basis and between 1% and 10% on an after-tax  basis.  Although the Plan
permits  contributions of up to 15% of base pay on a pre-tax basis and up to 10%
of base pay on an after-tax basis,  the combined maximum employee  contributions
may not exceed 20%. For Exelon subsidiaries that have adopted the Plan on behalf
of their union employees, the company matches contributions at a rate of 100% of
the  first 2%  contributed,  84% of the  following  1%  contributed,  83% of the
following 2% contributed, and 25% of the following 1% contributed.

              c. Investment Options.  The Plan investments are fully participant
directed.  The  investment  options  provided  under the Plan are  described  as
follows:

              The Exelon  Corporation  Stock Fund seeks to increase the value of
each account over the long term by investing in Exelon  Corporation  Stock.  The
Fund invests in Exelon stock as well as  short-term  investments.  The amount of
the  short-term  investments  is  based  upon a target  established  by the plan
sponsor,  but the actual amount of short term  investments on any given business
day will  vary with the  amount  of cash  awaiting  investment  and  participant
activity of the fund (contributions, redemptions, exchanges, and withdrawals).



                                       16


                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


              The Diversified Fund is invested in the Multi-Asset Portfolio Fund
of the Brinson  Trust  Company,  which  invests  primarily in  corporate  equity
securities and corporate and U. S.  government debt  securities.  Investments by
the Multi-Asset  Portfolio,  a collective  investment  fund, may also be made in
other  appropriate  investments,  including,  but not limited  to, real  estate,
foreign securities, venture capital opportunities and emerging markets.

              The  Managed  Income  Fund is  invested  primarily  in one or more
investment  contracts issued by either one or more insurance carriers,  banks or
trust companies.  The investment  contracts will stipulate rates of return to be
credited to funds invested in the contracts for specified  periods of time. Some
synthetic  contracts  ("wrappers")  provide  that the fund may  invest  in fixed
income  securities and bond funds including,  but not limited to, U.S.  Treasury
bonds;  investment grade corporate bonds; agency-,  mortgage-,  and asset-backed
securities; and U.S. obligations of domestic and foreign corporations and banks.
The actual rate of return of the fund will depend on the weighted average return
of all the  contracts in which such amounts are  invested,  and is determined by
the level of contributions to, and withdrawals from, the fund.

              The  Fidelity  U.S.  Equity  Index  Commingled  Pool  is  invested
primarily to perform as closely as possible to the Standard and Poor's 500 Stock
Price Index.  This pooled  investment  is managed by Fidelity  Management  Trust
Company.

              The Fidelity Magellan Fund is a mutual fund invested  primarily in
a diversified  portfolio of common and preferred stocks of all types of domestic
and foreign companies.

              The  Fidelity  Growth  Company  Fund  is a  mutual  fund  invested
primarily  in common  stock of  companies  with  earnings  or gross  sales  that
indicate the possibility for above-average growth. These may be companies of any
size and may include newly established  companies and less well-known  companies
in emerging areas of the economy.

              The Fidelity  Low-Priced  Stock Fund is a growth  mutual fund.  It
seeks capital appreciation; invests mainly in U.S. and foreign low-priced stocks
that may be undervalued,  overlooked or out of favor. Generally, "low-priced" is
considered  $25 or less at time of purchase.  These often are stocks of smaller,
less well-known companies. This fund has a redemption fee of 1.5% on shares held
less than 90 days.

              The Fidelity  Dividend  Growth Fund is a growth  mutual fund which
seeks capital growth. This fund looks for growth opportunities in companies that
have the potential for increasing  their  dividends or for  commencing  dividend
payouts,  if none are  currently  paid.  This fund invests  mainly in common and
preferred stocks and securities convertible into common stocks.

              The Fidelity Freedom Funds are asset allocation funds designed for
investors who want a simple approach to investing for retirement by investing in
a collection  of other  Fidelity  mutual  funds.  Each Freedom Fund invests in a
combination of underlying  Fidelity stock,  bond, and money market mutual funds.
The  allocation  strategy  among the  underlying  stock,  bond, and money market
mutual funds  contained in each  Freedom Fund with a target  retirement  date is
based on the number of years until your anticipated retirement.

               For  the  funds  with  a  target  retirement  date,  the  mix  of
underlying funds will gradually become more  conservative  over time.  Strategic
Advisers Inc. manages the Fidelity Freedom Funds.



                                       17


                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


              The Fidelity Freedom Income Fund seeks high current income and, as
a  secondary   objective,   some  capital  appreciation  for  those  already  in
retirement.  It  invests  approximately  20% in  Fidelity  stock  mutual  funds,
approximately  40% in  Fidelity  bond mutual  funds,  and  approximately  40% in
Fidelity money market mutual funds.

              The Fidelity  Freedom 2000 Fund seeks high total returns for those
planning  to  retire  in   approximately   1-10  years.  It  initially   invests
approximately 27% in Fidelity stock mutual funds,  approximately 42% in Fidelity
bond mutual funds, and approximately 31% in Fidelity money market mutual funds.

              The Fidelity  Freedom 2010 Fund seeks high total returns for those
planning to retire in approximately 10 years. It initially invests approximately
47% in Fidelity  stock mutual funds,  approximately  44% in Fidelity bond mutual
funds, and approximately 9% in Fidelity money market mutual funds.

              The Fidelity  Freedom 2020 Fund seeks high total returns for those
planning to retire in approximately 20 years. It initially invests approximately
71% in Fidelity stock mutual funds and approximately 29% in Fidelity bond mutual
funds.

              The Fidelity  Freedom 2030 Fund seeks high total returns for those
planning to retire in approximately 30 years. It initially invests approximately
83% in Fidelity stock mutual funds and approximately 17% in Fidelity bond mutual
funds.

              The Fidelity  Freedom 2040 Fund seeks high total returns for those
planning to retire in approximately 40 years. It initially invests approximately
90% in Fidelity stock mutual funds and approximately 10% in Fidelity bond mutual
funds.

              The  Morgan  Stanley  Dean  Witter   Institutional   Fund,   Inc.-
International  Equity Portfolio (Class A) is a growth-oriented  mutual fund that
invests in stocks of companies  domiciled  outside the U.S. It tries to increase
the  value of  investments  over the long term  through  growth  of  capital  by
investing  primarily in equity  securities  of companies  domiciled in developed
markets outside of the United States. The fund is managed by Morgan Stanley Dean
Witter Investment Management Inc.

              The  Franklin  Small-Mid  Cap  Growth  Fund - Class A is a  growth
mutual  fund that  invests at least 80% of its total of its total  assets in the
equity  securities  of U.S.  small  capitalization  companies  and in the equity
securities  of  U.S.  mid  capitalization  companies.  For  this  Fund,  mid-cap
companies are those  companies with market  capitalization  values not exceeding
$8.5  billion  and small cap  companies  are those  with  market  cap values not
exceeding:  1) $1.5 billion:  or 2) the highest  market cap value in the Russell
2000 Index: whichever is greater, at the time of purchase.

              The Legg Mason  Value  Trust  Institutional  Shares is a large-cap
equity mutual fund which uses the value approach to investing. This Fund invests
in stocks  that the  advisor  believes  are  undervalued,  and  therefore  offer
above-average potential for capital appreciation.

              The Fidelity  Retirement  Money Market  Portfolio  Fund is a money
market mutual fund that seeks to provide a high level of current  income that is
consistent with the preservation of capital and liquidity.  This fund invests in
U.S. dollar  denominated money market  securities and repurchase  agreements for
those securities, and may enter into reverse repurchase agreements.

                                       18

                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


              The White Oak Growth Stock  Portfolio is a growth mutual fund with
the goal to increase the value of investments over the long term through capital
growth.  This Fund  invests  primarily  in large  sized  companies  with  market
capitalizations  greater than $5 billion. The Fund may also invest in securities
of smaller  companies if it believes that such  securities of smaller  companies
offer comparable investment opportunities.

              The PIMCO  Total  Return Fund  (Institutional  Class) is an income
mutual fund with the goal to provide a high total  return that  exceeds  general
bond market  indices.  The Fund  invests in all types of bonds,  including  U.S.
government, corporate, mortgage and foreign. While the Fund maintains an average
portfolio  duration  of three to six years  (approximately  equal to an  average
maturity  of  5  to  12  years),   investments   may  also  include  short-  and
long-maturity bonds.

              The T.Rowe Price Capital Appreciation Fund is a growth mutual fund
that seeks to maximize long-term capital  appreciation by investing primarily in
equities.  The Fund  invests  primarily  in common  stocks and the fund may hold
fixed income and other securities to help preserve  principal value in uncertain
declining  markets.   The  Fund  invests  primarily  in  the  common  stocks  of
established U.S. companies believed to have above-average  potential for capital
growth.

              The T.Rowe Price High Yield Fund is an income mutual fund with the
goal to provide high current income and, secondarily,  capital appreciation. The
Fund  normally  invests  in at least  80% of its total  assets in a  diversified
portfolio of high-yield corporate, or "junk" bonds, income producing convertible
securities, and preferred stocks. The dollar-weighted average maturity generally
is expected to be in the 8 to 12 year range.

              The  Fidelity  Contrafund  is a growth  mutual  fund that seeks to
provide  capital  appreciation.  The Fund invests  primarily in common stocks of
domestic and foreign issuers.  The Fund invests in securities of companies whose
value the manager believes is not fully recognized by the public.

              d. Discontinued Funds. The following funds were discontinued as of
March 30, 2001:  Stated  Return Fund,  MAS High Yield  Portfolio  Fund  (Advisor
Class), Fidelity Intermediate Bond Fund, PIMCO Total Return Fund (Administrative
Class),  Fidelity Puritan Fund,  Fidelity Fund, and Fidelity Asset Manager Fund.
The assets were transferred to the various funds described above.

              e. Participant Loans. A participant may, upon application,  borrow
from the Plan.  Only one loan is permitted to a participant in any calendar year
(with a maximum of five loans outstanding at any time) and the loan shall not be
less than $1,000.  The aggregate amount of all outstanding  loans may not exceed
the lesser of (i) 50% of a  participant's  vested  balance in the Plan or,  (ii)
$50,000  minus the excess of the highest  outstanding  balance of all loans from
the  Plan to the  participant  during  the  previous  12-month  period  over the
outstanding balance of all loans from the Plan to the participant on the day the
loan is made. For a general purpose loan, the maximum period is five years.  For
a home loan the maximum  term is fifteen  years,  and the minimum is five years.
The interest rate on all loans is the prime rate for  commercial  loans plus 1%.
No  lump-sum  or  installment  distribution  from  the  Plan  will  be made to a
participant  who  has  received  a  loan,  or  to  a  beneficiary  of  any  such
participant,  until the loan,  including  interest,  has been  repaid out of the
funds otherwise distributable.

               f. Vesting of Participants'  Accounts. A participant's  After-Tax
Contributions  Account,  Before-Tax  Contributions  Account,  Employer  Matching
Contributions Account, and Rollover Account are fully vested at all times.

                                       19


                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


              g. Withdrawals by Participants  While Employed.  A participant may
withdraw up to the entire balance of the participant's  After-Tax  Contributions
Account once each calendar year. After making such a withdrawal, the participant
must wait six months before making a new election to resume contributions to the
Plan. A  participant  may also  withdraw up to an amount equal to the balance in
his Rollover Account.

              A  participant  may  make  withdrawals   from  the   participant's
Before-Tax  Contributions,  but only if the  participant has attained age 59-1/2
or,  prior to that  age,  only in an  amount  required  to  alleviate  financial
hardship as defined in the Code and regulations  thereunder.  Financial hardship
withdrawals from a Before-Tax  Contributions  Account suspend the  participant's
right to make contributions to the Plan for six months.

              While any loan to the participant remains outstanding,  the amount
available for  withdrawal  shall be the balance in such Account less the balance
of all outstanding loans.

              h. Distributions upon Termination of Employment.  Upon termination
of  employment,   retirement,  total  disability  or  death  of  a  participant,
distribution  of the  balances  of  the  participant's  After-Tax  Contributions
Account,  Before-Tax  Contributions  Account,  Rollover  Account  and the vested
portion  of  the  Employer  Matching   Contributions  Account  is  made  to  the
participant or, in the event of the  participant's  death, to the  participant's
designated  beneficiary or  beneficiaries.  Such  distribution  will be made, as
elected  by the  participant,  in the form of either a  lump-sum  payment  or in
substantially  equal annual  installments over a period not exceeding the lesser
of 15 years or the life  expectancy of the  participant or  beneficiary,  as the
case may be. A participant may elect to defer distributions until age 70-1/2. If
the value of a participant's  account is greater than $5,000 the participant can
leave their account in the plan.  Distributions will be taxed as ordinary income
in the year withdrawn and may also be subject to an early withdrawal  penalty if
taken before age 59 1/2, unless eligible rollover  distributions are rolled over
to  another  qualified  plan or an  IRA.  A 20%  mandatory  federal  income  tax
withholding applies to withdrawals that are eligible for rollover, but which are
not directly rolled over to another qualified plan or an IRA.

               i.   Administrative   Expenses.   Administrative   Expenses   for
recordkeeping  services as well as trustee  services,  which include  custodial,
administrative  and fiduciary  services,  and professional fees, are paid out of
the Plan assets.

(2) Summary of  Significant  Accounting  Policies.  The  significant  accounting
policies followed by the Plan are as follows:

               a. General. The Plan follows the accrual method of accounting for
recording   contributions   from   participants   and  Employers,   income  from
investments, purchases and sales of investments, and administrative expenses.

               b. Use of Estimates.  The preparation of financial  statements in
conformity  with  generally  accepted  accounting  principles  requires the plan
administrator  to make estimates and  assumptions  that affect certain  reported
amounts  and  disclosures.  Accordingly,  actual  results  may differ from those
estimates.

                                       20


                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


              c.  Investment   Valuation  and  Income  Recognition.   Guaranteed
investment  contracts are fully benefit  responsive and are reported at contract
value, which is cost plus accrued interest;  for synthetic investment contracts,
contract  value is equal to the fair value of the  collateral  plus the  benefit
responsive wrap value.

              Investments in Exelon  Corporation  Common Stock are valued at the
closing sales price as reported on New York Stock Exchange.

              Short-term  investments held by various institutional funds of the
Brinson Trust are stated at cost which approximates  current value.  Investments
in certain of the various funds that make up the Brinson  Multi-Asset  Portfolio
are valued at the latest  reported  sale  price on the  valuation  date used for
securities  traded on United  States and foreign  stock  exchanges.  Investments
valued in foreign  currencies  are converted  into U.S.  dollars based on quoted
foreign  exchange  rates on that date and are  valued at the  latest  quoted bid
price or at estimated current value as determined by the fund trustee.

              Investments  of registered  securities are valued at the last sale
price,  or if no sale  price,  at the closing  bid price.  Securities  for which
exchange  quotations  are not  readily  available  (and in  certain  cases  debt
securities   which   trade  on  an   exchange)   are  valued   primarily   using
dealer-supplied  valuations  or at their fair value as  determined in good faith
under consistently applied procedures under the general supervision of the Board
of Trustees.  Short-term securities maturing within sixty days of their purchase
date are valued at amortized cost or original cost plus accrued  interest,  both
of which approximate current value.

               d. Recent Accounting Pronouncements.  In June 1998, the Financial
Accounting   Standards  Board  (FASB)  issued  SFAS  No.  133,  "Accounting  for
Derivative  Instruments  and Hedging  Activities,"  to establish  accounting and
reporting  standards for derivatives.  SFAS No. 133 was subsequently  amended by
SFAS No. 137 and SFAS No. 138. These new standards  require that all derivatives
be recognized at their fair value as either assets or liabilities on the balance
sheet and specify the  accounting  for changes in fair value  depending upon the
intended use of the derivative.  The Plan was required to adopt SFAS No. 133, as
amended, in the fiscal year ended December 31, 2001.

              The Plan's  utilization of derivative  instruments  for trading or
non-trading  purposes is minimal, and the provisions of these statements are not
applied because the impact on the Plan's financial statement is not material.

(3) Net Appreciation/Depreciation of Investments.

              a. Net Unrealized Appreciation or Depreciation in Current Value of
Investments.  The net unrealized  appreciation  or  depreciation  in the current
value of  investments  is the  difference in the current value of investments at
the end of the year and the current value of investments at the beginning of the
year less the cost of investments  which were acquired  during the year plus the
current value at the  beginning of the year (or the cost if acquired  during the
year) of assets sold during the year.



                                       21


                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


              b. Realized Gain or Loss on Investments.  For investments  held at
the beginning of the year and sold during the year, the  difference  between the
proceeds  received and the current value at the beginning of the year is the net
realized gain or loss on the sale. For investments purchased during the year and
sold during the year, the difference  between the proceeds received and the cost
at the date of purchase is the net realized gain or loss on the sale.

               c. Net  Appreciation/Depreciation  in 2001 and 2000.  During 2001
and 2000,  the Plan's  investments  (including  gains and losses on  investments
bought and sold,  as well as held  during the year)  appreciated/depreciated  in
value as follows:



                                                     2001                       2000
                                            -----------------------    -----------------------
                                                                    
Exelon/Unicom Corporation Common Stock         $(149,279,285)             $  49,733,980
Registered Investment Companies                 (150,433,690)              (121,659,394)
Collective Funds                                 (21,318,659)                (7,525,056)
                                                 ------------               -----------

                                               $ (221,031,634)             $ (79,450,470)
                                            =======================    =======================


(4)  Investments.  The current values of the Plan's  investments at December 31,
2001  and  2000,  which  represent  5% or more of the  Plan's  net  assets,  are
summarized as follows:



                                                                               2001                       2000
                                                                      -----------------------    -----------------------
                                                                                               
Managed Income Fund                                                       $278,685,762               $ 180,703,147
Brinson Trust Company Collective Investment
     Trusts, Multi-Asset Portfolio Fund                                    167,140,136                159,777,555
Exelon Corporation Common Stock                                            112,994,136                104,082,257
Fidelity Magellan Fund                                                     193,440,584                224,938,176
Fidelity Growth Company Fund                                               243,554,370                355,738,362
Fidelity U.S. Equity Index Commingled Pool Fund                            165,086,228                176,333,390
Fidelity Dividend Growth Fund                                              141,508,736                     -
Legg Mason Value Trust Institutional Shares                                249,075,664                     -
Fidelity Contra Fund                                                       148,202,380                     -



(5) Investment Contracts. In 2001 and prior years, the Plan entered into several
benefit-responsive  investment  contracts with various  insurance  companies and
other financial institutions.  The contract providers maintain the contributions
in a general  account.  Some  investment  contracts are purchased in conjunction
with the investment by the Plan in fixed-income securities. Investment contracts
provide for the payment of a specified rate of interest. The account is credited
with earnings at the specified rate and charged for participant  withdrawals and
administrative  expenses. The contracts are included in the financial statements
at contract value, as reported to the Plan by the contract  providers.  Contract
value  represents  contributions  made under the contract,  plus earnings,  less
participant  withdrawals and  administrative  expenses.  Plan  participants  may
ordinarily  direct  the  withdrawal  or  transfer  of all or a portion  of their
investment at contract value.

              There are no reserves  against  contract  value for credit risk of
the  contract  issuer or  otherwise.  The  weighted  average  yield for all such
contracts were approximately 5.9 percent and 5.9


                                       22


                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


percent for 2001 and 2000,  respectively.  The crediting interest rate generally
cannot be less than the contract rate.

(6) Investments in Derivative Financial  Instruments.  The Multi-Asset Portfolio
Fund and some of the other Brinson  Trust funds in which it invests  participate
in various equity index futures  contracts and foreign currency  contracts.  The
assets of this fund are  invested as  follows:  cash and cash  equivalent  0.1%,
59.3% equities, 22% bonds, 9.5% real estate, 2.7% derivatives,  and 6.4% venture
capital.  A futures  contract,  is an  agreement  involving  the  delivery  of a
particular  asset on a specified  future date at an agreed upon price.  Risks of
entering into futures  contracts  include the  possibility  that there may be an
illiquid market and that changes in the value of the contracts may not correlate
with changes in the value of the underlying  securities.  Open futures contracts
are valued at the settlement price established each day on the exchange on which
they are traded.  These  contracts are marked to market daily with the resulting
gain or loss included in the net realized gain or loss from futures contracts.

              A forward exchange  contract is a commitment to purchase or sell a
foreign currency at a future date at a negotiated forward rate. Risks associated
with  such  contracts  include  movement  in the value of the  foreign  currency
relative to the U.S. dollar and the ability of the counterparty to perform.  The
contracts are valued at foreign exchange rates, and the changes in value of open
contracts are recognized as unrealized  appreciation/depreciation.  The realized
gain or loss on forward currency contracts represents the difference between the
value of the original contracts and the closing value of such contracts.

              Similarly,  some  or all of the  Fidelity  funds  and  the  Morgan
Stanley Dean Witter  International Equity Portfolio may use (1) foreign currency
contracts to facilitate  transactions  in foreign  securities  and to manage the
fund's  currency  exposure  and (2) futures and options  contracts to manage its
exposure to the stock and bond markets and to fluctuations in the interest rates
and  currency  values.  Such funds also may invest in indexed  securities  whose
values are linked either directly or inversely to changes in foreign currencies,
interest rates, commodities, indices, or other underlying instruments.

(7) Income  Tax  Status.  The  Internal  Revenue  Service  ("IRS")  has issued a
determination  letter that the Plan, as amended and restated January 1, 1995, is
a  qualified  defined  contribution  plan under  Section  401(a) of the Code and
qualifies  as an  employee  stock  ownership  plan,  that the  cash or  deferred
arrangement  is qualified  under Section 401(k) of the Code, and that the Trust,
as in effect as of the  amendments  of  January 1, 1995,  is a  qualified  trust
exempt from federal  income tax under Section  501(a) of the Code.  Although the
Plan has been amended since receiving the determination  letter,  the Plan's tax
counsel believes that the Plan continues to be in compliance with the applicable
requirements of the Code for qualified status.

(8) Plan  Amendments.  Effective  April 1,  2000  the  plan  was  amended  to 1)
incorporate  a  special  matching  contribution  rate for  employees  of  Unicom
Mechanical Services, Inc. or any or its subsidiaries which have adopted the Plan
2) exclude  from  eligibility  for  matching  contributions  certain  "part-time
regular employees" who were members of IBEW Local 15.

(9) Plan  Termination.  The Plan may be amended,  modified or  terminated by the
Company at any time,  subject to certain rights of participants  under the Plan.
The  Plan  may  also be  terminated  if the  Plan is  disqualified  by the  IRS.
Termination  of the Plan with respect to a  participating  employer may occur if
there  is  no  successor   employer  in  the  event  of   dissolution,   merger,
consolidation or



                                       23


                    EXELON CORPORATION EMPLOYEE SAVINGS PLAN
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)


reorganization  of such  employer  company.  In the  event  of  full or  partial
termination  of the Plan,  assets of affected  participants  of the  terminating
employer or employers shall remain 100% vested and  distributable at fair market
value in the form of cash,  securities or annuity contracts,  in accordance with
the provisions of the Plan.

(10) Plan  Mergers.  Effective  March 30, 2001,  the net assets of the following
plans were merged with and into the Plan:



                                                                                        
PECO Energy Company Employee Savings Plan                                                  $ 720,059,169
Bumler Heating and Specialties, Inc. 401(K) Profit Sharing
     And Savings Plan                                                                          1,426,975
Midwest Mechanical 401(k) Profit Sharing and Savings Plan                                      2,784,099
V.A. Smith Company 401(k) Profit Sharing and Savings Plan                                        222,762
                                                                                         ---------------------

                                                                                           $ 724,493,005
                                                                                         =====================

In 2000, the following  assets in the Plan related to employees of the following
Commonwealth Edison Company units were transferred out of the Plan as follows:

ComEd Fossil Generation Unit                                                                $ 93,422,624
Cotter Corporation                                                                             4,283,397
                                                                                         ---------------------

                                                                                            $ 97,706,021
                                                                                         =====================






                                       24







                                              EXELON CORPORATION EMPLOYEE SAVINGS PLAN

                                           SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES
                                                       AS OF DECEMBER 31, 2001

                                               Schedule H, Part IV, Item 4i, Form 5500

        No of Shares or                                                                                                 Current
          No. of Units                               Description                                     Cost                Value
  ---------------------------------------------------------------------------------------------------------------------------------

                                                            COMMON STOCKS

                                                                                                            
*    6,176,051 shares    Exelon Corporation Common Stock                                         $ 110,087,682       $ 111,985,000
                                                                                               ------------------------------------

                                                          COLLECTIVE FUNDS

*      149,102 units     Brinson Trust Company Collective Investment
                              Trusts, Multi-Asset Portfolio Fund                                 $ 104,532,188       $ 167,140,135
*    4,891,444 units     Fidelity U.S. Equity Index Commingled Pool                                130,777,057         165,086,227
*  131,383,755 units     Fidelity Institutional Cash Portfolio                                     131,383,757         131,383,757
                                                                                               ------------------------------------
                                                                                                 $ 366,693,002       $ 463,610,119
                                                                                               ------------------------------------

                                                   REGISTERED INVESTMENT COMPANIES

*    1,856,079 shares    Fidelity Magellan Fund                                                  $ 193,791,905       $ 193,440,582
*    3,465,101 shares    Fidelity Contrafund                                                       147,988,055         148,202,381
*    4,576,369 shares    Fidelity Growth Company Fund                                              278,015,421         243,554,371
*    1,753,604 shares    Fidelity Low-Priced Stock Fund                                             43,479,269          48,083,836
*    4,995,013 shares    Fidelity Dividend Growth Fund                                             139,387,969         141,508,735
*      343,568 shares    Fidelity Freedom Income Fund                                                3,776,523           3,755,199
*      605,869 shares    Fidelity Freedom 2000 Fund                                                  7,189,968           6,979,616
*    2,170,753 shares    Fidelity Freedom 2010 Fund                                                 28,637,434          27,373,193
*    2,292,419 shares    Fidelity Freedom 2020 Fund                                                 30,887,401          28,838,632
*    1,218,249 shares    Fidelity Freedom 2030 Fund                                                 17,247,312          15,301,207
*   43,511,294 shares    Fidelity Retirement Money Market                                           43,511,294          43,511,294
*       68,599 shares    Fidelity Freedom 2040 Fund                                                    521,573             506,946
*    6,142,701 shares    PIMCO Total Return Fund (Administrative Class)                             64,947,744          64,252,652
*    3,992,229 shares    TRP Capital Appreciation Fund                                              57,917,581          58,446,233
*      431,420 shares    TRP High Yield Fund                                                         2,986,093           2,877,569
*    2,545,727 shares    Morgan Stanley International Equity Portfolio A                            45,836,822          39,687,881
*      977,733 shares    Franklin Small MidCap Growth A                                             29,222,112          30,475,941
*    4,705,756 shares    LM Value Trust Inst.                                                      265,003,985         249,075,665
*      574,586 shares    White Oak Growth Stock                                                     23,841,009          22,087,103
                                                                                               ------------------------------------
                                                                                               $ 1,424,189,470     $ 1,367,959,036
                                                                                               ------------------------------------

                                                   GUARANTEED INVESTMENT CONTRACTS

                         CDC Capital
                              Guaranteed Investment Contract
     2,507,877 units     5.62% , Matures 12-10-2003                                                  2,507,877           2,507,877

                         AIG Financial Products
                            Synthetic Investment Contract (Asset Backed)
     1,354,901 units     Green Tree Mfd. Housing 1998-3 A5, 6.24%, Matures 03-01-2005                1,354,901           1,354,901


                       Chase Manhattan
                            Synthetic Investment Contracts (Asset Backed)
     2,576,309 units         Americredit 1999-A A4 5.37%, Matures 02-05-2004                         2,576,309           2,576,309
     3,020,720 units     Dayton Hudson Master Trust 1998-1 A, 5.58%, Matures 07-25-2003              3,020,720           3,020,720






                                                                 25

                                              EXELON CORPORATION EMPLOYEE SAVINGS PLAN

                                           SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES
                                                       AS OF DECEMBER 31, 2001

                                               Schedule H, Part IV, Item 4i, Form 5500

        No of Shares or                                                                                                 Current
          No. of Units                               Description                                     Cost                Value
  ---------------------------------------------------------------------------------------------------------------------------------

     2,308,526 units     FannieMae GLBL, 4.75%, Matures 03-15-2004                                   2,308,526           2,308,526
     2,519,765 units         General Electric MTN 6.29%,  Matures 11-18-2002                         2,519,765           2,519,765
     3,686,194 units         National Westminster BC 7.01%, Matures 11-17-2003                       3,686,194           3,686,194

                        Deutsche Bank
                            Synthetic Investment Contracts (Asset Backed)
     2,927,843 units          FHLMC 1626-PH  7.13%,  Matures 11-15-2002                              2,927,843           2,927,843
       937,248 units          FHR 1522 HB  5.86%,  Matures 03-15-2004                                  937,248             937,248
     1,618,943 units          GMAC CARAT 99-1 (A3), 5.00%, Matures 08-15-2002                        1,618,943           1,618,943

                         Monumental Life Insurance Company
                            Synthetic Investment Contracts (Asset Backed)
       706,071 units          Chase Manhattan Auto Tr. 1998-B A4, 5.66%, Matures 10-15-2002            706,071             706,071
     3,004,384 units      First USA Credit Card 1998-9 A, 5.34%, Matures 01-19-2004                  3,004,384           3,004,384
       382,490 units          FN93 1992-E .90%,  Matures 11-25-2002                                    382,490             382,490
       823,635 units          FN93 1993-210 5.74%,  Matures 11-25-2002                                 823,635             823,635
       786,457 units      PHMS 1993-48 A3 6.32%, Matures 09-25-2003                                    786,457             786,457
       438,766 units     Sears Credit Account Master Trust 1996-1 A, 6.28%, Matures 03-15-2002         438,766             438,766

                       Morgan Guaranty
                            Synthetic Investment Contracts (Asset Backed)
     3,524,509 units      CIT Marine 99-A A3, 5.73%, Matures 04-17-2006                              3,524,509           3,524,509
     1,928,081 units      FH 1388 H 6.41%, Matures 03-15-2005                                        1,928,081           1,928,081
     3,033,428 units      FH 1601 PH 5.58%, Matures 10-17-2005                                       3,033,428           3,033,428
     1,645,195 units      FH 1712-PG 6.48%, Matures 09-16-2002                                       1,645,195           1,645,195
     3,506,543 units      FHR 1587 L 6.68%, Matures 07-15-2004                                       3,506,543           3,506,543
     3,502,473 units     JC Penney Master Trust E A, 5.65%, Matures 11-17-2003                       3,502,473           3,502,473

                         Rabo Bank
                            Synthetic Investment Contracts (Asset Backed)
     3,037,941 units     FH 1798 A 5.67%, Matures 11-15-2006                                         3,037,941           3,037,941

                      State Street Bank
                            Synthetic Investment Contracts (Asset Backed)
     1,002,610 units     American Express Master Trust 1998-1 A, 5.97%, Matures 05-15-2003           1,002,610           1,002,610
     1,125,285 units     FHR 1661 PG 5.71%, Matures 04-15-2003                                       1,125,285           1,125,285
     2,728,005 units     NEWCOURT 1998-2 (A4), 5.49%, Matures 02-18-2003                             2,728,005           2,728,005
     1,814,133 units     Premier Auto Trust 1998-4, 5.85%, Matures 07-08-2002                        1,814,133           1,814,133

                         UBS AG
                            Synthetic Investment Contracts (Asset Backed)
     2,006,113 units     Arcadia Auto Trust 1998-A A5, 6.10%, Matures 12-15-2003                     2,006,113           2,006,113
     3,032,628 units         FEDHMLN , 5.01%, Matures 03-17-2003                                     3,032,628           3,032,628
     3,056,973 units         FEDHMLN , 4.29%, Matures 03-17-2003                                     3,056,973           3,056,973
     3,541,906 units         FEDHMLN , 4.91%, Matures 03-17-2003                                     3,541,906           3,541,906
     4,088,710 units         MBNA 97-1 (A), 5.84%, Matures 08-16-2004                                4,088,710           4,088,710

                         Westdeutsche Landesbank
                            Synthetic Investment Contract (Asset Backed)
     4,005,695 units          American Express 99-1 A, 5.71%, Matures 04-15-2004                     4,005,695           4,005,695
     3,408,303 units          MSC 1999-CAM1 A2 6.92%, Matures 11-17-2008                             3,408,303           3,408,303


                         CDC Capital
    17,179,074 units        Synthetic Investment Contracts (Global Wrap) 7.56%                      17,179,074          17,179,074




                                                                 26



                                              EXELON CORPORATION EMPLOYEE SAVINGS PLAN

                                           SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES
                                                       AS OF DECEMBER 31, 2001

                                               Schedule H, Part IV, Item 4i, Form 5500

        No of Shares or                                                                                                 Current
          No. of Units                               Description                                     Cost                Value
  ---------------------------------------------------------------------------------------------------------------------------------

                         Chase Manhattan
    17,181,717 units        Synthetic Investment Contracts (Global Wrap) 7.55%                      17,181,717          17,181,717

                         Monumental Life Insurance
    17,180,862 units        Synthetic Investment Contracts (Global Wrap) 7.56%                      17,180,862          17,180,862

                         Westdeutsche Landesbank
    17,180,830 units        Synthetic Investment Contract (Global Wrap) 7.56%                       17,180,830          17,180,830
                                                                                               ------------------------------------
                                                                                                 $ 148,311,143       $ 148,311,143
                                                                                               ------------------------------------

                                                                LOANS

                         Participant Loans ( 8.50% - 10.50%)                                               $ -        $ 64,150,587
                                                                                               ------------------------------------

                         Total Investments                                                     $ 2,049,281,297     $ 2,156,015,885
                                                                                               ====================================

* A party-in-interest to the Plan.













                                                                       27







                                       EXELON CORPORATION EMPLOYEE SAVINGS PLAN



                                       SCHEDULE OF TRANSACTIONS IN EXCESS OF 5%
                                         OF THE CURRENT VALUE OF PLAN ASSETS
                                         FOR THE YEAR ENDED DECEMBER 31, 2001



                          Purchases                                              Sales
            --------------------------------------    --------------------------------------------------------------
Description              Purchase     Current                    Cost of    Selling   Current        Net
 of Asset      Number      Price        Value            Number   Security    Price     Value    Gains (Losses)
--------------------------------------------------    --------------------------------------------------------------
     
                                           ** NO REPORTABLE TRANSACTIONS **


























                                                          28




                                List of Exhibits




Exhibit No.     Description

                PECO Energy Company Employee Savings Plan
23.1            Consent of Independent Public Accountants
23.2            Consent of Independent Accountants


                Exelon Corporation Employee Savings Plan
23.3            Consent of Independent Public Accountants






















                                       29





                                   Signatures




              Pursuant to the  requirements  of the  Securities  Exchange Act of
1934, the trustees (or other persons who  administer the employee  benefit plan)
have  duly  caused  this  annual  report  to be  signed  on  its  behalf  by the
undersigned hereunto duly authorized.


Date: June 27, 2002              PECO Energy Employee Savings Plan
                                 Exelon Corporation Employee Savings Plan


                                 /s/ Ruth Ann M. Gillis
                                 ------------------------------
                                 Ruth Ann M. Gillis
                                 Chairman, Plan Committee

















                                       30