Exhibit 99-4

                   Exelon Corporation and Subsidiary Companies
                   Financial Statements and Supplementary Data



To the Shareholders and Board of Directors of Exelon Corporation:


In our opinion,  the  accompanying  consolidated  balance sheets and the related
consolidated  statements  of  income,  cash flows and  changes in  shareholders'
equity and comprehensive  income present fairly, in all material  respects,  the
financial  position of Exelon  Corporation and Subsidiary  Companies (Exelon) at
December 31, 2001 and December 31, 2000, and the results of their operations and
their cash flows for each of the three years in the period  ended  December  31,
2001 in conformity with accounting  principles  generally accepted in the United
States of America. These financial statements are the responsibility of Exelon's
management;  our  responsibility  is to express  an  opinion on these  financial
statements  based on our audits.  We conducted our audits of these statements in
accordance with auditing  standards  generally  accepted in the United States of
America,  which 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,   assessing  the
accounting  principles  used and significant  estimates made by management,  and
evaluating the overall  financial  statement  presentation.  We believe that our
audits provide a reasonable basis for our opinion.
     As discussed in Note 2 to the  consolidated  financial  statements,  Exelon
acquired  Unicom  Corporation  on October  20,  2000 in a  business  combination
accounted  for under the purchase  method of  accounting.  The results of Unicom
Corporation  are included in the  consolidated  financial  statements  since the
acquisition date.
     As discussed in Note 5 to the  consolidated  financial  statements,  Exelon
changed its method of accounting  for nuclear outage costs in 2000. As discussed
in Note 1 to the consolidated financial statements, Exelon changed its method of
accounting for derivative  instruments and hedging activities  effective January
1, 2001.


/s/ PricewaterhouseCoopers LLP

Chicago, Illinois
January 29, 2002, except for Note 25 for which the date is March 1, 2002.

                                       1





Consolidated Statements of Income
Exelon Corporation and Subsidiary Companies

                                                                         For the Years Ended December 31,
                                                               -------------------------------------------
in millions, except per share data                                   2001            2000            1999
- ----------------------------------------------------------------------------------------------------------
                                                                                        
Operating Revenues                                               $ 15,140         $ 7,499        $  5,478
Operating Expenses
  Fuel and Purchased Power                                          5,313           2,606           2,152
  Operating and Maintenance                                         4,393           2,310           1,454
  Merger-Related Costs                                                 --             276              --
  Depreciation and Amortization                                     1,449             458             237
  Taxes Other Than Income                                             623             322             262
- ----------------------------------------------------------------------------------------------------------
Total Operating Expenses                                           11,778           5,972           4,105
- ----------------------------------------------------------------------------------------------------------
Operating Income                                                    3,362           1,527           1,373
- ----------------------------------------------------------------------------------------------------------
Other Income and Deductions
  Interest Expense, net of amounts capitalized                     (1,107)           (608)           (396)
  Distributions on Preferred Securities of Subsidiaries               (49)            (24)            (33)
  Equity in Earnings (Losses) of Unconsolidated Affiliates             62             (41)            (38)
  Other, Net                                                           79              53              59
- ----------------------------------------------------------------------------------------------------------
   Total Other Income and Deductions                               (1,015)           (620)           (408)
- ----------------------------------------------------------------------------------------------------------
Income Before Income Taxes, Extraordinary Items and
  Cumulative Effect of Changes in Accounting
Principles                                                          2,347             907             965
Income Taxes                                                          931             341             358
- ----------------------------------------------------------------------------------------------------------
Income Before Extraordinary Items and Cumulative Effects
  of Changes in Accounting Principles                               1,416             566             607
Extraordinary Items (net of income taxes of $2, and
  $25 for 2000, and 1999, respectively)                                --              (4)            (37)
Cumulative Effect of Changes in Accounting
  Principles (net of income taxes of $8 and $16 in
  2001 and 2000, respectively)                                         12              24              --
- ----------------------------------------------------------------------------------------------------------
Net Income                                                       $  1,428         $   586        $    570
==========================================================================================================
Average Shares of Common Stock Outstanding                            320             202             196
==========================================================================================================
Earnings Per Common Share:
    Basic:
    Income Before Extraordinary Items and Cumulative
      Effect of Changes in Accounting Principles                 $   4.42         $  2.81        $   3.10
    Extraordinary Items                                                --           (0.02)          (0.19)
    Cumulative Effect of Changes in Accounting Principles            0.04            0.12              --
- ----------------------------------------------------------------------------------------------------------
    Net Income                                                   $   4.46         $  2.91        $   2.91
==========================================================================================================
    Diluted:
    Income Before Extraordinary Items and Cumulative
      Effect of Changes in Accounting Principles                 $   4.39         $  2.77        $   3.08
    Extraordinary Items                                                --           (0.02)          (0.19)
    Cumulative Effect of Changes in
      Accounting Principles                                          0.04            0.12              --
- ----------------------------------------------------------------------------------------------------------
    Net Income                                                   $   4.43         $  2.87        $   2.89
==========================================================================================================
Dividends Per Common Share                                       $   1.82         $  0.91        $   1.00
==========================================================================================================

See Notes to Consolidated Financial Statements

                                       2





Consolidated Statements of Cash Flows
Exelon Corporation and Subsidiary Companies

                                                                         For the Years Ended December 31,
                                                                 ------------------------------------------
in millions                                                          2001            2000            1999
- ----------------------------------------------------------------------------------------------------------
                                                                                       
Cash Flows from Operating Activities
  Net Income                                                     $  1,428         $   586       $     570
  Adjustments to reconcile Net Income to Net
   Cash Flows provided by Operating Activities:
    Depreciation and Amortization                                   1,834             607             358
    Extraordinary Items (net of income taxes)                          --               4              37
    Cumulative Effects of Changes in Accounting
     Principles (net of income taxes)                                 (12)            (24)             --
    Provision for Uncollectible Accounts                              145              89              59
    Deferred Income Taxes                                             (68)            193               7
    Merger-Related Costs                                               --             276              --
    Employee Severance Costs                                           46              --              --
    Deferred Energy Costs                                              29             (79)             23
    Equity in (Earnings) Losses of Unconsolidated Affiliates          (62)             41              38
    Net Realized Losses on Nuclear
     Decommissioning Trust Funds                                      127              --              --
    Other Operating Activities                                         20            (169)              6
  Changes in Working Capital:
    Accounts Receivable                                               257            (445)           (159)
    Repurchase of Accounts Receivable                                  --             (50)           (150)
    Inventories                                                       (33)             49             (43)
    Accounts Payable, Accrued Expenses & Other Current Liabilities   (129)             (2)            149
    Other Current Assets                                               33              20             (12)
- ----------------------------------------------------------------------------------------------------------
Net Cash Flows provided by Operating Activities                     3,615           1,096             883
- ----------------------------------------------------------------------------------------------------------
Cash Flows from Investing Activities
   Investment in Plant                                             (2,041)           (752)           (491)
   Unicom Merger Consideration                                         --            (507)             --
   Proceeds from Direct Financing Leases                               --           1,228              --
   Investment in Sithe Energies, Inc.                                  --            (704)             --
   InfraSource Acquisitions                                           (30)           (245)           (222)
   Investments in and Advances to Joint Ventures                       --              --            (118)
   Proceeds from Nuclear Decommissioning Trust Funds                1,624             265              69
   Investment in Nuclear Decommissioning Trust Funds               (1,863)           (380)            (95)
   Other Investing Activities                                         (82)           (108)            (29)
- ----------------------------------------------------------------------------------------------------------
Net Cash Flows used in Investing Activities                        (2,392)         (1,203)           (886)
- ----------------------------------------------------------------------------------------------------------
Cash Flows from Financing Activities
   Issuance of Long-Term Debt, net of issuance costs                2,270           1,021           4,170
   Common Stock Repurchases                                            --            (501)         (1,693)
   Retirement of Long-Term Debt                                    (1,860)           (665)         (1,343)
   Change in Short-Term Debt                                       (1,013)             10            (388)
   Redemption of Preferred Securities of Subsidiaries                 (17)            (19)           (258)
   Dividends on Common Stock                                         (583)           (157)           (196)
   Change in Restricted Cash                                          (58)           (140)           (174)
   Proceeds from Employee Stock Plans                                  39              67              19
   Capital Lease Payments                                              --              --            (139)
   Other Financing Activities                                         (42)            (11)             11
- ----------------------------------------------------------------------------------------------------------
Net Cash Flows provided by (used in) Financing Activities          (1,264)           (395)              9
- ----------------------------------------------------------------------------------------------------------
Increase (Decrease) in Cash and Cash Equivalents                      (41)           (502)              6
Cash and Cash Equivalents at beginning of period                      526              54              48
Cash Acquired in Unicom Merger                                         --             974              --
- ----------------------------------------------------------------------------------------------------------
Cash and Cash Equivalents at end of period                       $    485         $   526       $      54
==========================================================================================================

See Notes to Consolidated Financial Statements

                                       3




Consolidated Balance Sheets
Exelon Corporation and Subsidiary Companies

                                                                                          at December 31,
                                                                              ----------------------------
in millions                                                                         2001             2000
- ----------------------------------------------------------------------------------------------------------
                                                                                          
Assets
Current Assets
  Cash and Cash Equivalents                                                     $    485        $     526
  Restricted Cash                                                                    372              314
  Accounts Receivable, net
   Customer                                                                        1,687            2,137
   Other                                                                             472              371
  Inventories, at average cost
   Fossil Fuel                                                                       222              157
   Materials and Supplies                                                            249              297
  Deferred Income Taxes                                                               23               62
  Other                                                                              272              287
- ----------------------------------------------------------------------------------------------------------
   Total Current Assets                                                            3,782            4,151
- ----------------------------------------------------------------------------------------------------------

Property, Plant and Equipment, net                                                13,742           12,936

Deferred Debits and Other Assets
  Regulatory Assets                                                                6,423            7,135
  Nuclear Decommissioning Trust Funds                                              3,165            3,109
  Investments                                                                      1,666            1,546
  Goodwill, net                                                                    5,335            5,186
  Other                                                                              708              723
- ----------------------------------------------------------------------------------------------------------
   Total Deferred Debits and Other Assets                                         17,297           17,699
- ----------------------------------------------------------------------------------------------------------
Total Assets                                                                    $ 34,821        $  34,786
==========================================================================================================

Liabilities and Shareholders' Equity

Current Liabilities
  Notes Payable                                                                 $    360        $   1,373
  Long-Term Debt Due Within One Year                                               1,406              908
  Accounts Payable                                                                   964            1,193
  Accrued Expenses                                                                 1,182              989
  Other                                                                              505              530
- ----------------------------------------------------------------------------------------------------------
   Total Current Liabilities                                                       4,417            4,993
- ----------------------------------------------------------------------------------------------------------

Long-Term Debt                                                                    12,876           12,958

Deferred Credits and Other Liabilities
  Deferred Income Taxes                                                            4,303            4,409
  Unamortized Investment Tax Credits                                                 316              330
  Nuclear Decommissioning Liability for Retired Plants                             1,314            1,301
  Pension Obligations                                                                334              416
  Non-Pension Postretirement Benefits Obligation                                     847              817
  Spent Nuclear Fuel Obligation                                                      843              810
  Other                                                                              728              907
- ----------------------------------------------------------------------------------------------------------
   Total Deferred Credits and Other Liabilities                                    8,685            8,990
- ----------------------------------------------------------------------------------------------------------

Preferred Securities of Subsidiaries                                                 613              630

Commitments and Contingencies

Shareholders' Equity
  Common Stock                                                                     6,930            6,890
  Deferred Compensation                                                               (2)              (7)
  Retained Earnings                                                                1,200              332
  Accumulated Other Comprehensive Income                                             102               --
- ----------------------------------------------------------------------------------------------------------
   Total Shareholders' Equity                                                      8,230            7,215
- ----------------------------------------------------------------------------------------------------------
Total Liabilities and Shareholders' Equity                                      $ 34,821        $  34,786
==========================================================================================================

See Notes to Consolidated Financial Statements

                                       4


Consolidated Statements of Changes in Shareholders' Equity
Exelon Corporation and Subsidiary Companies



                                                                                                         Accumulated
                                                                                                               Other           Total
                                                        Common      Deferred    Retained    Treasury   Comprehensive   Shareholders'
Dollars in millions, shares in thousands     Shares      Stock  Compensation    Earnings      Shares          Income          Equity
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
Balance, December 31, 1998                  224,684   $  3,558     $    --     $   (501)    $     --        $     --       $  3,057
Net Income                                                  --          --          570           --              --            570
Long-Term Incentive Plan Issuances              670         19          (5)          15           --              --             29
Amortization of Deferred Compensation                       --           2           --           --              --              2
Common Stock Dividends                                      --          --         (196)          --              --           (196)
Common Stock Repurchases                                    --          --           12       (1,705)             --         (1,693)
Other Comprehensive Income,
     net of income taxes of $3                              --          --           --           --               4              4
- ------------------------------------------------------------------------------------------------------------------------------------
Balance, December 31, 1999                  225,354   $  3,577     $    (3)    $   (100)    $ (1,705)       $      4        $ 1,773
Net Income                                                  --          --          586           --              --            586
Long-Term Incentive Plan Issuances              563         67          (9)           8            7              --             73
Shares Issued to Acquire Unicom             147,963      5,310          --           --           --              --          5,310
Merger Consideration-Stock Options                         111          --           --           --              --            111
Amortization of Deferred Compensation                       --           5           --           --              --              5
Common Stock Dividends                                      --          --         (157)          --              --           (157)
Common Stock Repurchases                                    --          --           (5)        (496)             --           (501)
Stock Option Exercises                                      --          --           --           19              --             19
Cancellation of Treasury Shares             (54,875)    (2,175)         --           --        2,175              --             --
Other Comprehensive Income,
     net of income taxes of $(3)                            --          --           --           --              (4)            (4)
- ------------------------------------------------------------------------------------------------------------------------------------
Balance, December 31, 2000                  319,005   $  6,890     $    (7)    $    332     $     --        $     --        $ 7,215
Net Income                                                  --          --        1,428           --              --          1,428
Long-Term Incentive Plan Issuances            1,864         32          --           23           --              --             55
Employee Stock Purchase Plan Issuances          138          6          --           --           --              --              6
Merger Consideration-Stock Options                           2          --           --           --              --              2
Amortization of Deferred Compensation                       --           5           --           --              --              5
Common Stock Dividends                                      --          --         (583)          --              --           (583)
Reclassified Net Unrealized Losses on
     Marketable Securities, net of income
     taxes of $22                                           --          --           --           --             (23)           (23)
Other Comprehensive Income, net of income
     tax benefit of $197                                    --          --           --           --             125            125
- ------------------------------------------------------------------------------------------------------------------------------------
Balance, December 31, 2001                  321,007   $  6,930     $    (2)    $  1,200     $     --        $    102        $ 8,230
====================================================================================================================================


Consolidated Statements of Comprehensive Income
Exelon Corporation and Subsidiary Companies



                                                                                For the Years Ended December 31,
                                                                               ----------------------------------
in millions                                                                      2001          2000         1999
- -----------------------------------------------------------------------------------------------------------------
                                                                                               
Net Income                                                                   $  1,428     $     586     $    570
Other Comprehensive Income
   SFAS 133 Transition Adjustment, net
     of income taxes of $18                                                  $     44     $      --     $     --
   Cash Flow Hedge Fair Value Adjustment, net of income taxes of $20               22            --           --
   Foreign Currency Translation Adjustment,
     net of income taxes of $0                                                     (1)           --           --
   Unrealized Gain (Loss) on Marketable
     Securities, net of income taxes of $145, $1 and $(1), respectively            60            (4)           4
- -----------------------------------------------------------------------------------------------------------------
Total Other Comprehensive Income                                                  125            (4)           4
- -----------------------------------------------------------------------------------------------------------------
Total Comprehensive Income                                                   $  1,553     $     582     $    574
=================================================================================================================

See Notes to Consolidated Financial Statements

                                       5


                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                   Exelon Corporation and Subsidiary Companies

(Dollars in millions, except per share data unless otherwise noted)

1. Significant Accounting Policies

Description  of  Business
Exelon  Corporation  (Exelon) is a utility  services holding company formed as a
result of the merger of Unicom  Corporation  (Unicom)  and PECO  Energy  Company
(PECO) (Merger).  See Note 2 - Merger. Exelon is engaged,  through subsidiaries,
in the energy delivery,  wholesale generation and the energy-related enterprises
businesses.  See Note 21 - Segment  Information.  The energy  delivery  business
consists of the retail electricity  distribution and transmission  businesses of
Commonwealth   Edison  Company   (ComEd)  in  northern   Illinois  and  PECO  in
southeastern  Pennsylvania  and the  natural gas  distribution  business of PECO
located in the Pennsylvania  counties surrounding the City of Philadelphia.  The
wholesale generation business consists of the electric generating facilities and
energy   marketing   operations  of  Exelon   Generation  LLC  (Generation)  and
Generation's  interests  in Sithe  Energies,  Inc.  (Sithe) and  AmerGen  Energy
Company LLC (AmerGen).  Exelon Enterprises Company,  LLC (Enterprises)  includes
energy  and   infrastructure   services,   competitive   retail   energy  sales,
communications  joint  ventures  and  other  investments  weighted  towards  the
communications, energy services and retail services industries.

Basis of Presentation
The  consolidated  financial  statements  of Exelon  include the accounts of its
majority-owned  subsidiaries after the elimination of intercompany transactions.
Exelon  generally  accounts  for  its 20% to 50%  owned  investments  and  joint
ventures, in which it exerts significant  influence,  under the equity method of
accounting.  Exelon consolidates its proportionate interest in its jointly owned
electric utility plants. Exelon accounts for its less than 20% owned investments
under  the  cost  method  of  accounting.   Accounting  policies  for  regulated
operations are in accordance with those prescribed by the regulatory authorities
having  jurisdiction,  principally the Illinois  Commerce  Commission (ICC), the
Pennsylvania  Public Utility  Commission  (PUC),  the Federal Energy  Regulatory
Commission  (FERC) and the  Securities and Exchange  Commission  (SEC) under the
Public Utility Holding Company Act of 1935 (PUHCA).
     On October  20,  2000,  Exelon  became  the parent of PECO  through a share
exchange and Unicom, the parent of ComEd, was merged into Exelon. As a result of
these transactions, Unicom ceased to exist and Exelon became the parent of ComEd
and PECO. See Note 2 - Merger. In addition,  for accounting  purposes,  PECO was
deemed the acquiror in the Merger.  Accordingly,  the  financial  statements  of
Exelon  for the  periods  presented  prior to October  20,  2000  represent  the
historical  financial  statements  of PECO and for the periods  from October 20,
2000 include the operations acquired from Unicom.

Accounting  for  the  Effects  of  Regulation
Exelon  accounts  for  all of its  regulated  electric  and  gas  operations  in
accordance with the Financial  Accounting  Standards  Board (FASB)  Statement of
Financial  Accounting  Standards  (SFAS) No. 71,  "Accounting for the Effects of
Certain Types of  Regulation,"  (SFAS No. 71) requiring  Exelon to record in its
financial  statements the effects of the rate regulation.  Use of SFAS No. 71 is
applicable to the utility operations of Exelon that meet the following criteria:
(1) third-party  regulation of rates; (2) cost-based rates; and (3) a reasonable
assumption  that all costs will be  recoverable  from  customers  through rates.
Exelon believes that it is probable that currently  recorded  regulatory  assets
will be recovered.  If a separable  portion of Exelon's business no longer meets
the  provisions  of SFAS No. 71,  Exelon is required to eliminate  the financial
statement effects of regulation for that portion.

Use of Estimates
The preparation of financial  statements in conformity  with generally  accepted
accounting   principles  (GAAP)  requires   management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates.  Significant
estimates   have  been  made  in  the  accounting   for   derivatives,   nuclear
decommissioning liabilities, environmental costs and pension costs.

                                       6


Revenues
Operating  revenues are  generally  recorded as service is rendered or energy is
delivered to customers. At the end of each month, Exelon accrues an estimate for
the unbilled amount of energy delivered or services provided to its electric and
gas  customers.  Exelon  recognizes  contract  revenues  and  profits on certain
long-term   fixed-price   contracts  from  its  services  businesses  under  the
percentage-of-completion  method  of  accounting  based on costs  incurred  as a
percentage of estimated total costs of individual contracts.

Purchased Gas Adjustment Clause
PECO's  natural gas rates are subject to a fuel  adjustment  clause  designed to
recover or refund the  difference  between the actual cost of purchased  gas and
the amount  included in base rates.  Differences  between the amounts  billed to
customers  and the actual  costs  recoverable  are  deferred  and  recovered  or
refunded in future  periods by means of  prospective  quarterly  adjustments  to
rates.

Nuclear Fuel
The cost of nuclear fuel is  capitalized  and charged to fuel expense  using the
unit of production method.  Estimated costs of nuclear fuel storage and disposal
at operating plants are charged to fuel expense as the related fuel is consumed.

Depreciation, Amortization and Decommissioning
Depreciation is provided over the estimated service lives of property, plant and
equipment on a straight line basis. Annual depreciation provisions for financial
reporting  purposes,  expressed as a percentage of average service life for each
asset category are presented in the table below.  See Note 23 for information on
service life extensions for certain nuclear generating stations.



Asset Category                                                    2001             2000              1999
- ---------------------------------------------------------------------------------------------------------
                                                                                           
Electric-Transmission and Distribution                            3.97%            4.16%            1.83%
Electric-Generation                                               3.11%            5.02%            5.12%
Gas                                                               2.34%            2.39%            2.36%
Common - Gas and Electric                                         6.26%            5.09%            4.45%
Other Property and Equipment                                      9.53%            8.11%            8.61%
=========================================================================================================


Amortization  of  regulatory  assets is  provided  over the  recovery  period as
specified in the related  regulatory  agreement.  Goodwill  associated  with the
Merger was  amortized  on a straight  line basis over 40 years in 2000 and 2001.
Goodwill  associated with other  acquisitions was amortized over periods from 10
to 20 years in 2000 and 2001.  Accumulated  amortization  of  goodwill  was $185
million,  $35  million  and $1  million at  December  31,  2001,  2000 and 1999,
respectively.  Effective  January 1, 2002 under SFAS No. 142 "Goodwill and Other
Intangible Assets" (SFAS No. 142), goodwill recorded by Exelon will no longer be
subject to amortization.
     Exelon currently recovers costs for  decommissioning its nuclear generating
stations  through  regulated  rates.  The amounts  recovered  from customers are
deposited  in trust  accounts  and  invested  for  funding  of future  costs for
operating and retired plants.  Exelon accounts for the current  period's cost of
decommissioning  related to generating plants previously owned by PECO following
common  regulatory  accounting  practices by recording a charge to  depreciation
expense and a corresponding liability in accumulated  depreciation  concurrently
with  decommissioning  collections.  Regulatory  accounting  practices  for  the
generating  stations  previously owned by ComEd were discontinued as a result of
an ICC order capping ComEd's  ultimate  recovery of  decommissioning  costs. See
Note 4 - Corporate Restructuring and Note 12 - Nuclear Decommissioning and Spent
Fuel Storage,  regarding regulatory  accounting practices for nuclear generating
stations transferred by ComEd to Generation.  The difference between the current
cost  decommissioning  estimate and the  decommissioning  liability  recorded in
accumulated depreciation for the former ComEd operating stations is amortized to
depreciation  expense on a  straight-line  basis over the remaining  lives.  The
current cost  decommissioning  estimate (adjusted annually to reflect inflation)
for the former  ComEd  retired  units  recorded  in  deferred  credits and other
liabilities  is accreted  to  depreciation  expense.  Exelon  believes  that the
amounts being  recovered  from customers  through  electric rates along with the
earnings on the trust funds will be sufficient to fully fund its decommissioning
obligations.

                                       7


Capitalized Interest
Exelon uses SFAS No. 34,  "Capitalizing  Interest Costs," to calculate the costs
during construction of debt funds used to finance its non-regulated construction
projects. Exelon recorded capitalized interest of $17 million, $2 million and $6
million in 2001, 2000 and 1999, respectively.
     Allowance for Funds Used During  Construction  (AFUDC) is the cost,  during
the  period  of  construction,   of  debt  and  equity  funds  used  to  finance
construction projects for regulated operations. AFUDC is recorded as a charge to
Construction  Work in  Progress  and as a  non-cash  credit  to  AFUDC  which is
included in Other Income and Deductions.  The rates used for capitalizing  AFUDC
are computed under a method prescribed by regulatory authorities.

Income  Taxes
Deferred  Federal  and  state  income  taxes  are  provided  on all  significant
temporary   differences   between  book  bases  and  tax  bases  of  assets  and
liabilities.  Investment tax credits previously utilized for income tax purposes
have been deferred on the Consolidated Balance Sheets and are recognized in book
income over the life of the related property. Exelon and its subsidiaries file a
consolidated  Federal  income tax return.  Income taxes are allocated to each of
Exelon's subsidiaries within the consolidated group based on the separate return
method.

Gains and Losses on Reacquired Debt
Recoverable gains and losses on reacquired debt related to regulated  operations
are deferred and amortized to interest  expense over the period  consistent with
rate  recovery  for  ratemaking  purposes.  Gains and  losses on other  debt are
recognized in Exelon's Consolidated Statements of Income as incurred.

Comprehensive Income
Comprehensive income includes all changes in equity during a period except those
resulting from investments by and  distributions to shareholders.  Comprehensive
income is reflected in the  Consolidated  Statements of Changes in Shareholders'
Equity and the Consolidated Statements of Comprehensive Income.

Cash and Cash Equivalents
Exelon  considers  all temporary  cash  investments  purchased  with an original
maturity of three months or less to be cash equivalents.

Restricted Cash
Restricted  cash  reflects  unused  cash  proceeds  from  the  issuance  of  the
transition bonds and  transitional  trust notes, and escrowed cash to be applied
to the principal and interest  payment on the transition  bonds and transitional
trust notes.

Marketable Securities
Marketable  securities are classified as  available-for-sale  securities and are
reported  at fair  value,  with the  unrealized  gains and  losses,  net of tax,
reported in other comprehensive  income. Under regulatory  accounting practices,
unrealized  gains  and  losses  on  marketable  securities  held in the  nuclear
decommissioning  trust  funds  are  reported  in  accumulated  depreciation  for
operating units and as a reduction of regulatory  assets for retired units. When
regulatory accounting practices are discontinued, unrealized gains and losses on
marketable  securities  held in the  nuclear  decommissioning  trust  funds  are
reported in accumulated  other  comprehensive  income.  At December 31, 2001 and
2000, Exelon had no held-to-maturity or trading securities.

                                       8


Property, Plant and Equipment
Property, plant and equipment is recorded at cost. Exelon evaluates the carrying
value of property,  plant and  equipment and other  long-term  assets based upon
current and anticipated  undiscounted  cash flows,  and recognizes an impairment
when it is  probable  that  such  estimated  cash  flows  will be less  than the
carrying value of the asset. Measurement of the amount of impairment, if any, is
based upon the difference  between  carrying  value and fair value.  The cost of
maintenance,   repairs  and  minor  replacements  of  property  are  charged  to
maintenance expense as incurred.
     Upon  retirement,  the cost of regulated  property  plus removal costs less
salvage  value,  are  charged  to  accumulated  depreciation  by  the  regulated
subsidiaries in accordance with regulatory practices.  For unregulated property,
the cost and accumulated  depreciation of property,  plant and equipment retired
or otherwise  disposed of are removed from the related  accounts and included in
the determination of the gain or loss on disposition.

Capitalized Software Costs
Costs incurred during the application development stage of software projects for
software  which is developed or obtained  for internal use are  capitalized.  At
December 31, 2001 and 2000,  capitalized software costs totaled $240 million and
$285  million,  respectively,  net of $85 million  and $53  million  accumulated
amortization,  respectively. Such capitalized amounts are amortized ratably over
the expected lives of the projects when they become  operational,  not to exceed
ten years.  Certain  capitalized  software is being amortized over fifteen years
pursuant to regulatory approval.

Derivative  Financial  Instruments
Exelon  accounts  for  derivative  financial  instruments  under  SFAS  No.  133
"Accounting for Derivatives and Hedging  Activities"  (SFAS No. 133).  Under the
provisions of SFAS No. 133, all  derivatives are recognized on the balance sheet
at their fair value unless they qualify for a normal  purchases and normal sales
exception. Changes in the fair value of the derivative financial instruments are
recognized in earnings  unless  specific  hedge  accounting  criteria are met. A
derivative  financial  instrument can be designated as a hedge of the fair value
of a recognized  asset or liability or of an unrecognized  firm commitment (fair
value hedge), or a hedge of a forecasted  transaction or the variability of cash
flows to be received or paid  related to a recognized  asset or liability  (cash
flow hedge).  Changes in the fair value of a derivative that is highly effective
as, and is designated and qualifies as, a fair value hedge,  along with the gain
or loss on the hedged  asset or  liability  that is  attributable  to the hedged
risk, are recorded in earnings.  Changes in the fair value of a derivative  that
is highly  effective as, and is designated as and qualifies as a cash flow hedge
are recorded in other comprehensive  income,  until earnings are affected by the
variability of cash flows being hedged.
     In connection  with Exelon's Risk  Management  Policy (RMP),  Exelon enters
into derivatives to manage its exposure to fluctuation in interest rates related
to its variable  rate debt  instruments,  changes in interest  rates  related to
planned future debt issuances  prior to their actual issuance and changes in the
fair value of  outstanding  debt which is planned  for early  retirement.  As it
relates  to energy  transactions,  Exelon  utilizes  derivatives  to manage  the
utilization of its available  generating  capability and provisions of wholesale
energy to its  affiliates.  Exelon also  utilizes  energy  option  contracts and
energy  financial swap  arrangements  to limit the market price risk  associated
with  forward  energy  commodity  contracts.  Additionally,  Exelon  enters into
certain energy related derivatives for trading or speculative purposes.
     As part of Exelon's energy marketing business, Exelon enters into contracts
to buy and  sell  energy  to  meet  the  requirements  of its  customers.  These
contracts  include  short-term  and long-term  commitments  to purchase and sell
energy and energy related products in the retail and wholesale  markets with the
intent and  ability  to deliver or take  delivery.  While  these  contracts  are
considered  derivative financial instruments under SFAS No. 133, the majority of
these transactions have been designated as "normal purchases" and "normal sales"
and are not subject to the  provisions  of SFAS No. 133.  Normal  purchases  and
normal sales are contracts where physical  delivery is probable,  quantities are
expected to be used or sold in the normal  course of business  over a reasonable
period of time,  and price is not tied to an  unrelated  underlying  derivative.
Under these  contracts  Exelon  recognizes  gains or losses when the  underlying
physical  transaction  affects earnings.  Revenues and expenses  associated with
market price risk  management  contracts  are  amortized  over the terms of such
contracts.  Commitments  under  these  contracts  are  discussed  in  Note  20 -
Commitments  and  Contingencies.  The remainder

                                       9


of these contracts are generally considered cash flow hedges under SFAS No. 133.
To the extent that the hedges are effective,  changes in the fair value of these
contracts  are  recorded  in other  comprehensive  income,  until  earnings  are
affected by the variability of cash flows being hedged.
     Additionally,  during  2001,  as part of the  creation of  Exelon's  energy
trading  operation,  Exelon began to enter into contracts to buy and sell energy
for trading  purposes  subject to limits.  These contracts are recognized on the
balance  sheet at fair value and  changes in the fair value of these  derivative
financial instruments are recognized in earnings.
     Prior to the adoption of SFAS No. 133, Exelon applied hedge accounting only
if the  derivative  reduced  the  risk of the  underlying  hedged  item  and was
designated  at the  inception  of the hedge,  with  respect to the hedged  item.
Exelon  recognized any gains or losses on these  derivatives when the underlying
physical transaction affected earnings.
     Contracts  entered  into by Exelon to limit  market  risk  associated  with
forward energy commodity contracts are reflected in the financial  statements at
the lower or cost or market using the accrual method of accounting.  Under these
contracts  Exelon  recognizes any gains or losses when the  underlying  physical
transaction affects earnings. Revenues and expenses associated with market price
risk management contracts were amortized over the terms of such contracts.

New Accounting  Pronouncements
In 2001, the FASB issued SFAS No. 141, "Business  Combinations"  (SFAS No. 141),
SFAS No. 142, No. 143, "Asset Retirement  Obligations"  (SFAS No. 143), and SFAS
No. 144,  "Accounting for the Impairment or Disposal of Long-Lived  Assets (SFAS
No.144).
     SFAS No. 141 requires that all business combinations be accounted for under
the purchase  method of  accounting  and  establishes  criteria for the separate
recognition of intangible assets acquired in business combinations. SFAS No. 141
is effective for business combinations initiated after June 30, 2001.
     SFAS No.  142  establishes  new  accounting  and  reporting  standards  for
goodwill and  intangible  assets.  Exelon  adopted SFAS No. 142 as of January 1,
2002. Under SFAS No. 142, effective January 1, 2002, goodwill recorded by Exelon
is no longer subject to  amortization.  After January 1, 2002,  goodwill will be
subject to an assessment for impairment  using a two-step fair value based test,
the first step of which must be performed at least annually,  or more frequently
if events or circumstances  indicate that goodwill might be impaired.  The first
step  compares  the  fair  value of a  reporting  unit to its  carrying  amount,
including  goodwill.  If the carrying  amount of the reporting  unit exceeds its
fair value, the second step is performed.  The second step compares the carrying
amount of the goodwill to the fair value of the  goodwill.  If the fair value of
goodwill is less than the carrying amount,  an impairment loss would be reported
as a reduction  to goodwill  and a charge to  operating  expense,  except at the
transition  date,  when the loss would be reflected as a cumulative  effect of a
change in accounting  principle.  As of December 31, 2001, Exelon's Consolidated
Balance  Sheets  reflected   approximately  $5.3  billion  in  goodwill  net  of
accumulated amortization,  including $4.9 billion of net goodwill related to the
merger of Unicom and PECO recorded on ComEd's  Consolidated Balance Sheets, with
the remainder related to Enterprises. Annual amortization of goodwill related to
the Merger and to Enterprises of $126 million and $24 million, respectively, was
discontinued  upon adoption of SFAS No. 142. Exelon has completed the first step
of the transitional  impairment analysis which indicated that the ComEd goodwill
is not impaired but that an  impairment  exists with respect to the  Enterprises
goodwill. The second step of the analysis,  which will compare the fair value of
the Enterprises goodwill to the $433 million carrying value at December 31, 2001
has not yet been completed. The second step analysis is expected to be completed
and the transitional impairment loss recognized, in the first quarter of 2002 as
a Cumulative Effect of a Change in Accounting Principle.
     SFAS No. 143 provides  accounting  requirements for retirement  obligations
associated with tangible long-lived assets. Exelon expects to adopt SFAS No. 143
on January 1, 2003.  Retirement  obligations  associated with long-lived  assets
included  within the scope of SFAS No. 143 are those for which  there is a legal
obligation  to settle under  existing or enacted law,  statute,  written or oral
contract or by legal  construction  under the doctrine of  promissory  estoppel.
Adoption of SFAS No. 143 will change the accounting for the  decommissioning  of
Exelon's nuclear generating plants. Currently, Exelon records the obligation for
decommissioning  ratably  over the  lives of the  plants.  The  January  1, 2003
adoption of SFAS No. 143 will require a cumulative effect  adjustment  effective
the date of adoption to adjust plant assets and  decommissioning  liabilities to
the  values  they  would  have been had this  standard  been  employed  from the
in-service dates of the plants.

                                       10


     The  effect  of  this  cumulative   adjustment  will  be  to  increase  the
decommissioning  liability  to  reflect  a full  decommissioning  obligation  in
current year dollars.  Additionally, the standard will require the accrual of an
asset related to the full amount of the decommissioning  obligation,  which will
be amortized over the remaining lives of the plants.  The net difference between
the asset  recognized  and the liability  recorded upon adoption of the standard
will be charged to  earnings  and  recognized  as a  cumulative  effect,  net of
expected  regulatory  recovery.  The  decommissioning  liability  to be recorded
represents an obligation for the future  decommissioning of the plants, and as a
result interest expense will be accrued on this liability until such time as the
obligation is satisfied.
     Exelon is in the  process of  evaluating  the impact of SFAS No. 143 on its
financial  statements,  and cannot  determine the ultimate impact of adoption at
this time, however the cumulative effect could be material to Exelon's earnings.
Additionally,  although  over the life of the plant the charges to earnings  for
the depreciation of the asset and the interest on the liability will be equal to
the amounts currently recognized as decommissioning expense, the timing of those
charges will change and in the  near-term  period  subsequent  to adoption,  the
depreciation  of the asset and the interest on the liability  could result in an
increase in expense.
     SFAS No. 144  establishes  accounting and reporting  standards for both the
impairment  and disposal of long-lived  assets.  This statement is effective for
fiscal years  beginning after December 15, 2001 and provisions of this statement
are generally applied prospectively.  Exelon is in the process of evaluating the
impact of SFAS No.  144 on its  financial  statements,  and does not  expect the
impact to be material.

Reclassifications
Certain prior year amounts have been reclassified for comparative purposes.  The
reclassifications did not affect net income.

2.   Merger

On October 20, 2000, Exelon became the parent corporation of PECO and ComEd as a
result of the completion of the  transactions  contemplated  by an Agreement and
Plan of Exchange and Merger, as amended (Merger  Agreement),  among PECO, Unicom
Corporation (Unicom) and Exelon. Pursuant to the Merger Agreement, Unicom merged
with and into  Exelon  (Merger).  In the Merger,  each share of the  outstanding
common stock of Unicom was converted into 0.875 shares of common stock of Exelon
plus $3.00 in cash. As a result of the Share  Exchange,  Exelon became the owner
of all of the common stock of PECO. As a result of the Merger,  Unicom ceased to
exist and its subsidiaries, including ComEd, became subsidiaries of Exelon.
     The Merger was accounted for using the purchase  method of accounting.  The
total purchase price was $5,975 million.  In connection with the Merger,  Exelon
issued 148 million  shares of common  stock in the amount of $5,310  million and
paid $507  million in cash to Unicom  shareholders  pursuant to the terms of the
Merger Agreement.  The source of the cash  consideration was borrowings under an
Exelon term loan. In addition, the Merger consideration included $113 million of
fair value of stock  options and awards for  certain  Unicom  employees  and $45
million of direct  acquisition  costs. The cost in excess of net assets acquired
was $5,136  million as adjusted to reflect  final  purchase  price  allocations.
Exelon's  results of operations  include  Unicom's  results of operations  since
October 20, 2000. The fair value of the assets  acquired,  including the cost in
excess of net  assets  acquired,  and  liabilities  assumed in the Merger are as
follows:



- -----------------------------------------------------------------------------------------------------------
                                                                                               
Current Assets (including cash of $974)                                                            $ 2,744
Property, Plant and Equipment                                                                        7,641
Deferred Debits and Other Assets                                                                     5,535
Cost in excess of net assets acquired                                                                5,136
Current Liabilities                                                                                 (2,413)
Long-Term Debt                                                                                      (7,419)
Deferred Credits and Other Liabilities                                                              (4,921)
Preferred Securities of Subsidiaries                                                                  (328)
- -----------------------------------------------------------------------------------------------------------
Total Purchase Price                                                                               $ 5,975
===========================================================================================================


                                       11


Goodwill  associated  with the  merger  increased  by $262  million in 2001 as a
result of the  finalization  of the purchase  price  allocation.  The adjustment
resulted primarily from the after-tax effects of the reduction of the regulatory
asset for  decommissioning  retired  nuclear  plants,  as discussed in Note 12 -
Nuclear  Decommissioning and Spent Fuel Storage,  additional employee separation
costs and the finalization of other purchase price allocations.
     Selected  unaudited pro forma combined  results of operations for the years
ended December 31, 2000 and 1999,  assuming the Merger  Transaction  occurred on
January 1, 2000 and 1999, respectively, are presented as follows:



(unaudited)                                                                         2000              1999
- -----------------------------------------------------------------------------------------------------------
                                                                                          
Total revenues                                                                  $ 13,531        $   12,225
Pro forma net income                                                            $  1,007        $    1,184
Merger-related costs (net of income taxes of $147 million)                           220                --
Extraordinary items (net of income taxes of $2 million and
   $25 million for 2000 and 1999, respectively)                                      (4)              (37)
Cumulative effect of a change in accounting principle (net of
   income taxes of $16 million)                                                       24                --
- -----------------------------------------------------------------------------------------------------------
Pro forma net income before Merger-related costs, extraordinary
   items and cumulative effect of a change in accounting principle              $  1,247        $    1,147
===========================================================================================================
Proforma net income before Merger-related costs, extraordinary
   items and cumulative effect of a change in accounting principle
   per common share (diluted)                                                   $   3.86        $     3.55
===========================================================================================================


Pro forma information assumes the effects of Unicom's 1999 fossil plant sale and
the issuance of  transition  bonds and notes  occurred at the beginning of 1999.
The  pro  forma  financial  information  is not  necessarily  indicative  of the
operating results that would have occurred had the Merger been consummated as of
the dates  indicated,  nor are they  necessarily  indicative of future operating
results.

Merger-Related Costs
In  association   with  the  Merger,   Exelon  recorded   certain  reserves  for
restructuring  costs. The reserves associated with PECO were charged to expense,
while  the  reserves  associated  with  Unicom  were  recorded  as  part  of the
application of purchase accounting and did not affect results of operations.
     Merger-related  costs  charged  to  expense  in  2000  were  $276  million,
consisting  of $124 million for PECO  employee  costs and $152 million of direct
incremental   costs.   Direct  incremental  costs  represent  expenses  directly
associated with completing the Merger,  including  professional fees, regulatory
approval and  settlement  costs,  and settlement of  compensation  arrangements.
Employee   costs   represent   estimated   severance   costs  and   pension  and
postretirement  benefits  provided under Exelon's  merger  separation  plans for
eligible  employees  who are  expected  to be  involuntarily  terminated  before
December 2002 due to integration activities of the merged companies.
     The purchase price  allocation as of December 31, 2000 included a liability
of $307 million for Unicom employee costs and liabilities of  approximately  $39
million for estimated  costs of exiting  various  business  activities of former
Unicom activities that were not compatible with the strategic business direction
of Exelon.

                                       12


     During 2001,  Exelon  finalized its plans for  consolidation  of functions,
including  negotiation  of an  agreement  with  the  union  regarding  severance
benefits to union  employees  and recorded  adjustments  to the  purchase  price
allocation as follows:



                                                                     Original           2001       Adjusted
                                                                     Estimate    Adjustments    Liabilities
- ------------------------------------------------------------------------------------------------------------
                                                                                       
Employee severance payments                                        $     128       $    33      $       161 (a)
Actuarially determined pension and postretirement costs                  158           (11)             147 (b)
Relocation and other severance                                            21             9               30 (a)
- ------------------------------------------------------------------------------------------------------------
Total Unicom - Employee Cost                                       $     307       $    31      $       338
============================================================================================================
<FN>
(a)  The increase is a result of the identification in 2001 of additional positions to be eliminated.
(b)  The reduction  results from lower estimated  pension and post retirement  welfare  benefits  reflecting  revised
     actuarial estimates.
</FN>


Additional  employee  severance costs of $48 million  primarily  related to PECO
employees were charged to expense in 2001.  Exelon  anticipates  that a total of
$289 million of employee  costs will be funded from  pension and  postretirement
benefit plans and $191 million of Unicom employee severance costs will be funded
from general corporate funds.
     The following table provides a  reconciliation  of the reserve for employee
severance and relocation costs associated with the merger:



- -----------------------------------------------------------------------------------------------------------
                                                                                               
Employee severance and relocation reserve as of October 20, 2000                                   $   149
Additional reserve                                                                                      42
- -----------------------------------------------------------------------------------------------------------
Adjusted employee severance and relocation reserve                                                     191
Payments to employees (October 2000-December 2001)                                                     (77)
- -----------------------------------------------------------------------------------------------------------
Employee severance and relocation reserve as of December 31, 2001                                  $   114
============================================================================================================


Approximately  3,400  Unicom  and PECO  positions  have  been  identified  to be
eliminated as a result of the merger.  Exelon has terminated  1,461 employees as
of December 31, 2001.  The remaining  positions are expected to be eliminated by
the end of 2002.

3.  Acquisitions

Sithe Energies, Inc. Acquisition Generation owns 49.9% of the outstanding common
stock of Sithe and has an option,  beginning on December  18, 2002,  to purchase
the  remaining  common stock  outstanding  (Remaining  Interest)  in Sithe.  The
purchase   option  expires  on  December  18,  2005.  In  addition,   the  Sithe
stockholders  who own in the aggregate the Remaining  Interest have the right to
require  Generation to purchase the Remaining  Interest (Put Rights)  during the
same period in which Generation can exercise its purchase option.  At the end of
this exercise  period,  if Generation has not exercised its purchase  option and
the other Sithe  stockholders  have not exercised  their Put Rights,  Generation
will have an  additional  one-time  option  to  purchase  shares  from the other
stockholders in Sithe to bring Generation's  ownership in Sithe from the current
49.9% to 50.1% of Sithe's total outstanding common stock.
     If Generation exercises its option to acquire the Remaining Interest, or if
all the other Sithe  stockholders  exercise their Put Rights, the purchase price
for 70% of the Remaining  Interest will be set at fair market value subject to a
floor  of $430  million  and a  ceiling  of $650  million.  The  balance  of the
Remaining  Interest will be valued at fair market value without being subject to
floor or ceiling  prices.  In either  instance,  interest  shall accrue from the
beginning of the exercise period.
     If Generation increases its ownership in Sithe to 50.1% or more, Sithe will
become a  consolidated  subsidiary and Exelon's  financial  results will include
Sithe's financial results from the date of purchase. At December 31, 2001, Sithe
had total assets of $4.2 billion and long-term  debt of $2.3 billion,  including
$2.1 billion of  non-recourse  project  debt,  and  excluding  any  non-recourse
project debt  associated  with Sithe's  equity  investments.  For the year ended
December  31, 2001 Sithe had  revenues of $1  billion.  As of December  31, 2001
Exelon had a $725 million equity investment in Sithe.

                                       13


     Sithe,  headquartered in New York, is a leading independent power producer,
with  ownership  interests  in 27  facilities  in North  America.  Sithe has net
generation capacity of 3,371 MW, primarily in New York and Massachusetts,  2,651
MW under construction and 2,400 MW in advanced development.

InfraSource, Inc. Acquisitions
In  2001  InfraSource,   Inc.  (InfraSource),   formerly  Exelon  Infrastructure
Services, Inc., acquired the assets of a utility service contracting company for
an aggregate purchase price of approximately $30 million.  In 2000,  InfraSource
acquired the stock or assets of seven utility services contracting companies for
an aggregate purchase price of approximately $245 million. The acquisitions were
accounted for using the purchase method of accounting.  The initial estimates of
the excess of purchase  price over the fair value of net assets  acquired in the
2001 acquisition and in the 2000 acquisitions were approximately $19 million and
$216 million,  respectively.  The allocation of purchase price to the fair value
of assets acquired and liabilities assumed in these acquisitions is as follows:



                                                                                    2001              2000
- -----------------------------------------------------------------------------------------------------------
                                                                                             
Current Assets (net of cash acquired)                                             $   10           $    63
Property, Plant and Equipment                                                         11                17
Cost in excess of net assets acquired                                                 19               216
Current Liabilities                                                                  (10)              (51)
- -----------------------------------------------------------------------------------------------------------
Total                                                                             $   30           $   245
===========================================================================================================


At  December  31, 2001 and 2000,  Current  Assets  includes  $77 million and $70
million,   respectively,  of  Costs  and  Earnings  in  Excess  of  Billings  on
uncompleted  contracts  and  Current  Liabilities  includes  $56 million and $23
million,   respectively,  of  Billings  and  Earnings  in  Excess  of  Costs  on
uncompleted contracts.

AmerGen Energy Company, LLC
In August 2000,  AmerGen Energy  Company,  LLC  (AmerGen),  a joint venture with
British Energy,  Inc., a wholly owned subsidiary of British Energy plc, (British
Energy),  completed  the purchase of Oyster Creek  Nuclear  Generating  Facility
(Oyster  Creek) from GPU,  Inc.  (GPU) for $10  million.  Under the terms of the
purchase  agreement,  GPU agreed to fund outage costs of $89 million,  including
the cost of fuel,  for a  refueling  outage that  occurred  in 2000.  AmerGen is
repaying  these  costs to GPU in equal  annual  installments  through  2009.  In
addition,  AmerGen assumed full responsibility for the ultimate  decommissioning
of Oyster  Creek.  At the  closing of the sale,  GPU  provided  funding  for the
decommissioning  trust of $440 million.  In conjunction  with this  acquisition,
AmerGen has  received a fully funded  decommissioning  trust fund which has been
computed  assuming the anticipated  costs to appropriately  decommission  Oyster
Creek  discounted  to net  present  value using the NRC's  mandated  rate of 2%.
AmerGen  believes  that the  amount of the trust  fund and  investment  earnings
thereon  will be  sufficient  to meet  its  decommissioning  obligation.  GPU is
purchasing  the  electricity  generated by Oyster Creek pursuant to a three-year
power purchase agreement.

4.   Corporate Restructuring

During January 2001, Exelon undertook a restructuring to separate its generation
and other competitive  businesses from its regulated energy delivery business at
ComEd and PECO. As part of the restructuring,  the generation-related operations
and assets and  liabilities of ComEd were  transferred  to Generation.  Also, as
part of the restructuring,  the non-regulated  operations and related assets and
liabilities of PECO,  representing  PECO's  generation and enterprises  business
segments,   were  transferred  to  Generation  and  Enterprises,   respectively.
Additionally,  certain  operations and assets and  liabilities of ComEd and PECO
were transferred to Exelon Business Services Company (BSC).

                                       14


5.   Accounting Changes

On January 1, 2001,  Exelon  recognized a non-cash  gain of $12 million,  net of
income taxes,  in earnings and deferred a non-cash  gain of $44 million,  net of
income  taxes,  in  Accumulated  Other  Comprehensive  Income,  a  component  of
shareholders' equity, to reflect the adoption of SFAS No. 133, as amended.
     During the fourth  quarter of 2000, as a result of the  synchronization  of
accounting  policies with Unicom in connection with the Merger, PECO changed its
method of accounting  for nuclear outage costs to record such costs as incurred.
Previously,  PECO accrued these costs over the operating unit cycle. As a result
of the change in  accounting  method for nuclear  outage  costs,  PECO  recorded
income  of $24  million,  net of  income  taxes of $16  million.  The  change is
reported  as a  cumulative  effect of a change in  accounting  principle  on the
Consolidated  Statements  of Income as of December  31, 2000,  representing  the
balance of the nuclear outage cost reserve at January 1, 2000.

6.   Regulatory Issues

ComEd
In 2001,  the phased process to implement  competition in the electric  industry
continued  as  mandated  by  the  requirements  of  the  Illinois  restructuring
legislation.

Customer  Choice As of December 31, 2000,  all  non-residential  customers  were
eligible to choose a new electric  supplier or elect the power  purchase  option
which allows the purchase of electric energy from ComEd at market-based  prices.
ComEd's residential  customers become eligible to choose a new electric supplier
in May 2002.  As of December  31,  2001,  approximately  18,700  non-residential
customers, representing approximately 22% of ComEd's annual retail kilowatt-hour
sales, had elected to purchase their electric energy from an alternate  electric
supplier or had chosen the power purchase  option.  Customers who receive energy
from an alternative  supplier continue to pay a delivery charge. ComEd is unable
to predict the long term impact of customer choice on results of operations.


Rate Reductions and Return on Common Equity Threshold The Illinois restructuring
legislation  provided a 15% residential base rate reduction  effective August 1,
1998 with an additional 5% residential base rate reduction  effective October 1,
2001.  ComEd's  operating  revenues were reduced by approximately $24 million in
2001  due  to  the 5%  residential  rate  reduction.  Notwithstanding  the  rate
reductions and subject to certain  earnings tests, a rate freeze is generally in
effect  until at least  January 1, 2005.  A utility may request a rate  increase
during the rate  freeze  period  only when  necessary  to ensure  the  utility's
financial  viability.  Under the Illinois  legislation,  if the earned return on
common equity of a utility during this period exceeds an established  threshold,
one-half of the excess  earnings  must be refunded to  customers.  The threshold
rate of return on common equity is based on the 30-Year  Treasury Bond rate plus
8.5% in the years 2000 through 2004.  Earnings for purposes of ComEd's threshold
include  ComEd's net income  calculated in accordance  with GAAP and reflect the
amortization  of  regulatory  assets and  goodwill.  As a result of the Illinois
legislation,  at  December  31,  2001,  ComEd  had a  regulatory  asset  with an
unamortized  balance  of $277  million  that it  expects  to fully  recover  and
amortize by the end of 2004.  Consistent  with the  provisions  of the  Illinois
legislation, regulatory assets may be recovered at amounts that provide ComEd an
earned  return  on  common  equity  within  the  Illinois  legislation  earnings
threshold. The earned return on common equity and the threshold return on common
equity for ComEd are each calculated on a two-year average basis.  ComEd did not
trigger the earnings  sharing  provision in 2000 or 2001 and does not  currently
expect to trigger the  earnings  sharing  provisions  in the years 2002  through
2004.

                                       15


PECO
In 2001,  the phased process to implement  competition in the electric  industry
continued  as mandated  by the  requirements  of the PUC's  Final  Restructuring
Order.

Customer Choice The PUC's Final Restructuring Order provided for the phase-in of
customer choice of electric  generation  supplier (EGS) for all customers and as
of January 1, 2000 all customers  were eligible for customer  choice.  The Final
Restructuring  Order also  established  market share thresholds to ensure that a
minimum number of residential and commercial  customers  choose an EGS or a PECO
affiliate. If less than 35% and 50% of residential and commercial customers have
chosen an EGS, including  residential customers assigned to an EGS as a provider
of last  resort  default  supplier,  by  January  1, 2001 and  January  1, 2003,
respectively, the number of customers sufficient to meet the necessary threshold
levels   shall  be  randomly   selected   and  assigned  to  an  EGS  through  a
PUC-determined  process.  On January 1, 2001,  the 35% threshold was met for all
three  customer  classes as a result of  agreements  assigning  customers to New
Power Company and Green  Mountain as providers of last resort  default  service.
During 2001, PECO  experienced an increase in the number of customers  selecting
or returning to PECO as their EGS and at December 31, 2001, approximately 28% of
PECO's  residential  load, 6% of its small commercial and industrial load and 5%
of its large  commercial and industrial load were purchasing  generation from an
alternative  generation  supplier.  Customers  who  purchase  energy from an EGS
continue to pay a delivery charge.

Rate Reductions and Caps Under the Final  Restructuring  Order,  retail electric
rates  were  capped  at  year-end  1996  levels  (system-wide  average  of  9.96
cents/kilowatt  hour (kWh))  through June 2005.  The Final  Restructuring  Order
required  PECO  to  reduce  its  retail  electric  rates  by 8%  from  the  1996
system-wide average rate on January 1, 1999. This rate reduction decreased to 6%
on January 1, 2000 until January 1, 2001. The transmission and distribution rate
component was capped at a  system-wide  average rate of 2.98  cents/kWh  through
June 30, 2005.  Additionally,  generation  rate caps,  defined as the sum of the
applicable  transition  charge and energy and  capacity  charge,  will remain in
effect through 2010.
     On March 16, 2000, the PUC issued an order  authorizing  PECO to securitize
up to an additional $1 billion of its  authorized  stranded costs  recovery.  In
accordance with the terms of that order, PECO provided its retail customers with
rate reductions of $60 million for calendar year 2001 only.
     Under a  comprehensive  settlement  agreement in connection  with achieving
regulatory approval of the Merger, PECO agreed to $200 million in aggregate rate
reductions  for all customers in  Pennsylvania  over the period  January 1, 2002
through 2005 and extended the rate caps on PECO's retail  electric  distribution
charges through December 31, 2006.

7.   Supplemental Financial Information

Supplemental Income Statement Information


                                                                          For the Years Ended December 31,
                                                                -------------------------------------------
                                                                   2001             2000              1999
- -----------------------------------------------------------------------------------------------------------
                                                                                           
Taxes Other Than Income
Utility                                                          $  342            $ 196            $  155
Real estate                                                         140               68                72
Payroll                                                              81               41                28
Other                                                                60               17                 7
- -----------------------------------------------------------------------------------------------------------
Total                                                            $  623            $ 322            $  262
===========================================================================================================

Other, Net
Investment  income                                               $   47            $  64            $   52
Gain (loss) on disposition of assets, net                             4              (19)               (1)
Settlement of power purchase agreement                               --                6                --
AFUDC, equity and borrowed                                           18                3                 4
Other                                                                10               (1)                4
- -----------------------------------------------------------------------------------------------------------
Total                                                            $   79            $  53            $   59
===========================================================================================================


                                       16


Supplemental Cash Flow Information



                                                                           For the Years Ended December 31,
                                                                -------------------------------------------
                                                                   2001             2000              1999
- -----------------------------------------------------------------------------------------------------------
                                                                                         
Cash paid during the year:
Interest (net of amount capitalized)                           $    963          $   519          $    350
Income taxes (net of refunds)                                  $    749          $   272          $    304
Non-cash investing and financing:
   Regulatory Asset Fair Value Adjustment                      $    347               --                --
   Purchase Accounting Estimate Adjustments                    $   (85)               --                --
   Issuance of Exelon Shares for Unicom                              --          $ 5,310                --
   Issuance of InfraSource stock                               $     35          $    14          $     11
Depreciation and amortization:
   Property, plant and equipment                               $    702          $   325          $    207
   Nuclear fuel                                                     393              149               104
   Regulatory assets                                                445               53                --
   Decommissioning                                                  144               46                29
   Goodwill                                                         150               34                 1
   Leased property                                                   --               --                17
- -----------------------------------------------------------------------------------------------------------
Total Depreciation and Amortization                            $  1,834          $   607          $    358
===========================================================================================================


Supplemental Balance Sheet Information

Investments


                                                                                              December 31,
                                                                                 --------------------------
                                                                                    2001              2000
- -----------------------------------------------------------------------------------------------------------
                                                                                            
Investment in Sithe                                                              $   725          $    704
Direct financing leases                                                              427               409
Energy services and other ventures                                                   161               170
Communication ventures                                                               116                97
Investment in AmerGen                                                                113                44
Affordable housing projects                                                           98                88
Investment in subsidiaries and joint ventures                                         26                34
- -----------------------------------------------------------------------------------------------------------
Total                                                                            $ 1,666          $  1,546
===========================================================================================================


Prior to the  Merger,  Unicom  entered  into a  like-kind  exchange  transaction
pursuant to which  approximately $1.6 billion was invested in passive generating
station leases with two separate  entities  unrelated to Exelon.  The generating
stations  were leased  back to such  entities  as part of the  transaction.  For
financial  accounting  purposes,  the  investments  are  accounted for as direct
financing lease  investments.  Under the terms of the lease  agreements,  Exelon
received a  prepayment  of $1.2  billion in the  fourth  quarter of 2000,  which
reduced the investment in the lease.  The remaining  payments are payable at the
end of the thirty year lease and there are no minimum  scheduled  lease payments
to be received over the next five years. The components of the net investment in
the direct financing leases are as follows:



                                                                                               December 31,
                                                                                ---------------------------
                                                                                    2001              2000
- -----------------------------------------------------------------------------------------------------------
                                                                                            
Total minimum lease payments                                                     $ 1,492          $  1,492
Less:  Unearned income                                                             1,065             1,083
- -----------------------------------------------------------------------------------------------------------
Net investment in direct financing leases                                        $   427          $    409
===========================================================================================================


                                       17


Regulatory Assets


                                                                                              December 31,
                                                                                ---------------------------
                                                                                    2001              2000
- -----------------------------------------------------------------------------------------------------------
                                                                                            
Competitive transition charge                                                    $ 4,947          $  5,218
Recoverable deferred income taxes (see Note 15)                                      701               632
Nuclear decommissioning costs for retired plants                                     310               719
Recoverable transition costs                                                         277               385
Loss on reacquired debt                                                              112                99
Compensated absences                                                                   5                 4
Non-pension postretirement benefits                                                   71                78
- -----------------------------------------------------------------------------------------------------------
     Long-Term Regulatory Assets                                                   6,423             7,135
Deferred energy costs (current asset)                                                 56                86
- -----------------------------------------------------------------------------------------------------------
Total                                                                            $ 6,479          $  7,221
===========================================================================================================


At December 31, 2001 and 2000, the Competitive  Transition Charge (CTC) includes
the  unamortized  balance of $4.5  billion and $4.8  billion,  respectively,  of
Intangible  Transition  Property  (ITP)  sold to PECO  Energy  Transition  Trust
(PETT), a wholly owned subsidiary of PECO, in connection with the securitization
of PECO's stranded cost recovery.  PETT financed its purchase of the ITP through
the issuance of transition  bonds.  See Note 14 - Long-Term Debt. ITP represents
the irrevocable right of PECO or its assignee to collect  non-bypassable charges
from customers to recover  stranded  costs.  The CTC represents  PECO's stranded
costs that are recoverable  through regulated rates. The CTC is recoverable over
a twelve year period ending  December 31, 2010 with a return on the  unamortized
balance of 10.75%.

8.   Earnings Per Share

Diluted earnings per share are calculated by dividing net income by the weighted
average  shares of common  stock  outstanding  including  shares  issuable  upon
exercise  of  stock  options  outstanding  under  Exelon's  stock  option  plans
considered to be common stock equivalents.  The following table shows the effect
of these stock options on the weighted average number of shares outstanding used
in calculating diluted earnings per share (in millions):



                                                                   2001             2000              1999
- -----------------------------------------------------------------------------------------------------------
                                                                                              
Average Common Shares Outstanding                                   320              202               196
Assumed Exercise of Stock Options                                     2                2                 1
- -----------------------------------------------------------------------------------------------------------
Average Dilutive Common Shares Outstanding                          322              204               197
===========================================================================================================


9.   Accounts Receivable

Accounts  receivable -- Customer at December 31, 2001 and 2000 included unbilled
operating revenues of $438 million and $498 million, respectively. The allowance
for  uncollectible  accounts at December  31, 2001 and 2000 was $213 million and
$200 million, respectively.
     Accounts  receivable -- Other at December 31, 2001 and 2000 included demand
notes  receivable  from a  communications  joint  venture  in the amount of $153
million.  The  receivable  has been  adjusted for  Exelon's  share of this joint
venture's operating losses incurred in excess of its investment.  The notes bear
interest at the Applicable Federal Rate, compounded  semi-annually.  The average
interest rate on the notes  receivable  was 4.18% and 6.22% at December 31, 2001
and 2000,  respectively.  Interest income related to the notes receivable was $6
million and $10 million in 2001 and 2000, respectively.
     PECO is party to an agreement with a financial  institution  under which it
can sell or finance with limited recourse an undivided interest, adjusted daily,
in up to $225 million of designated  accounts receivable until November 2005. At
December 31, 2001, PECO had sold a $225 million interest in accounts receivable,
consisting  of a  $170  million  interest  in  accounts  receivable

                                       18


which PECO accounted for as a sale under SFAS No. 140, "Accounting for Transfers
and  Servicing  of  Financial  Assets  and  Extinguishment  of  Liabilities  - a
Replacement  of  FASB  Statement  No.  125,"  and  a  $55  million  interest  in
special-agreement  accounts  receivable  which was  accounted for as a long-term
note  payable.  See  Note  14 -  Long-Term  Debt.  PECO  retains  the  servicing
responsibility  for these  receivables.  The agreement requires PECO to maintain
the $225 million  interest,  which, if not met, requires PECO to deposit cash in
order to satisfy such requirements. At December 31, 2001 and 2000, PECO met this
requirement and was not required to make any cash deposits.

10. Property, Plant and Equipment

A summary of property,  plant and equipment by classification as of December 31,
2001 and 2000 is as follows:



Asset Category                                                                     2001              2000
- -----------------------------------------------------------------------------------------------------------
                                                                                            
Electric-Transmission and Distribution                                          $ 10,156          $ 9,447
Electric-Generation                                                                4,344            4,044
Gas                                                                                1,281            1,181
Common                                                                               399              408
Nuclear Fuel                                                                       2,681            2,341
Construction Work in Progress                                                      1,294            1,189
Leased Property                                                                        -                2
Other Property, Plant and Equipment                                                1,371            1,274
- -----------------------------------------------------------------------------------------------------------
         Total Property, Plant and Equipment                                      21,526           19,886
         Less Accumulated Depreciation (including accumulated
              amortization of nuclear fuel of $1,838 and $1,445 in 2001
              and 2000, respectively)                                              7,784            6,950
- -----------------------------------------------------------------------------------------------------------
Property, Plant and Equipment, net                                               $13,742          $12,936
===========================================================================================================


11.  Jointly Owned Electric Utility Plant

Exelon's  undivided  ownership  interests  in jointly  owned  electric  plant at
December 31, 2001, were as follows:



                                                                             Production Plant
                            -----------------------------------------------------------------     Transmission
                            Peach Bottom        Salem     Keystone     Conemaugh  Quad Cities  and Other Plant
                                                PSE&G
Operator                      Generation       Nuclear     Reliant       Reliant   Generation      Various Co.
- --------------------------------------------------------------------------------------------------------------
                                                                               
Participating Interest               50%        42.59%      20.99%        20.72%          75%     21 to 44%
Exelon's Share:
Plant                              $ 387         $  12       $ 121        $  193         $ 96          $ 66
Accumulated Depreciation           $ 220         $   4       $  98        $  124         $ 10          $ 25
Construction Work
     in Progress                   $  13         $  53       $  13        $   12         $ 52          $  1
- -------------------------------------------------------------------------------------------------------------


Exelon's undivided  ownership interests are financed with Exelon funds and, when
placed in service,  all  operations  are accounted for as if such  participating
interests were wholly owned facilities.

                                       19


12.  Nuclear Decommissioning and Spent Fuel Storage

Exelon has an obligation  to  decommission  its nuclear  power plants.  Exelon's
current estimate of its nuclear facilities'  decommissioning  cost for its owned
nuclear  power  plants is $7.2  billion in current  year (2002)  dollars.  These
expenditures  are  expected to occur after the plants  retirement,  estimated to
begin in 2045. Decommissioning costs are currently recoverable through regulated
rates.  Under  rates in effect  through  December  31,  2001,  Exelon  collected
approximately  $102  million in 2001 from  customers.  At December  31, 2001 the
decommissioning  liability,  recorded in Accumulated  Depreciation  and Deferred
Credits and Other Liabilities on Exelon's  Consolidated Balance Sheets, was $2.7
billion and $1.3 billion, respectively. At December 31, 2000 the decommissioning
liability,  recorded in Accumulated  Depreciation and Deferred Credits and Other
Liabilities on Exelon's  Consolidated  Balance Sheets, was $2.6 billion and $1.3
billion,  respectively.  In  order  to fund  future  decommissioning  costs,  at
December  31,  2001 and  2000,  Exelon  held  $3.2  billion  and  $3.1  billion,
respectively,  in trust  accounts  which are included as Investments in Exelon's
Consolidated Balance Sheets at their fair market value. Exelon believes that the
amounts being recovered from customers  through  regulated rates and earnings on
nuclear  decommissioning  trust  funds  will be  sufficient  to  fully  fund its
decommissioning obligations.
     In connection with the transfer of ComEd's nuclear  generating  stations to
Generation,   ComEd  asked  the  ICC  to  approve  the  continued   recovery  of
decommissioning  costs after the transfer.  On December 20, 2000, the ICC issued
an order  finding  that  the ICC has the  legal  authority  to  permit  ComEd to
continue to recover  decommissioning  costs from customers for the six-year term
of the power purchase  agreements  between ComEd and  Generation.  Under the ICC
order,  ComEd is  permitted to recover $73 million per year from  customers  for
decommissioning  for the years 2001 through  2004.  In 2005 and 2006,  ComEd can
recover up to $73 million annually,  depending upon the portion of the output of
the former ComEd nuclear  stations that ComEd purchases from  Generation.  Under
the ICC  order,  subsequent  to 2006,  there will be no  further  recoveries  of
decommissioning  costs  from  customers.  The ICC order also  provides  that any
surplus funds after the nuclear stations are decommissioned  must be refunded to
customers.  The amount of recovery in the ICC order is less than the $84 million
annual  amount ComEd  recovered in 2000.  The ICC order is currently  pending on
appeal in the Illinois Appellate Court.
     To account for the effects of the ICC order,  in the first  quarter of 2001
ComEd  reduced its nuclear  decommissioning  regulatory  asset to $372  million,
reflecting the reduction in expected  probable future  recoveries from customers
through  2006.  The  reduction  in the  regulatory  asset in the  amount of $347
million was recorded as an adjustment to the initial  purchase price  allocation
relating to the asset and  resulted  in a  corresponding  increase in  goodwill.
Also, ComEd recorded an obligation to Generation of  approximately  $440 million
representing  ComEd's legal  requirement  to remit funds to  Generation  for the
remaining   regulatory  asset  amount  of  $372  million  upon  collection  from
customers,  and for  collections  from customers prior to the  establishment  of
external  decommissioning  trust funds in 1989 to be remitted to Generation  for
deposit into the  decommissioning  trusts  through  2006.  Unrealized  gains and
losses on  decommissioning  trust funds (based on the market value of the assets
on the Merger date, in accordance with purchase  accounting) had previously been
recorded in accumulated  depreciation or regulatory  assets.  As a result of the
transfer of the ComEd nuclear  plants to Generation  and the ICC order  limiting
the regulated recoveries of decommissioning  costs, net unrealized losses of $23
million  (net of income  taxes) at that date were  reclassified  to  accumulated
other  comprehensive  income. All subsequent  realized gains and losses on these
decommissioning  trust  funds'  assets  are based on the cost basis of the trust
fund assets established on the Merger date and are reflected in Other Income and
Deductions in Exelon's Consolidated Statements of Income.
     Under the Nuclear Waste Policy Act of 1982 (NWPA),  the U.S.  Department of
Energy (DOE) is responsible  for the selection and  development of  repositories
for, and the disposal of, spent  nuclear fuel (SNF) and  high-level  radioactive
waste.  ComEd and PECO, as required by the NWPA, each signed a contract with the
DOE  (Standard  Contract) to provide for  disposal of SNF from their  respective
nuclear  generating  stations.  In  accordance  with the  NWPA and the  Standard
Contract,  ComEd and PECO pay the DOE one mill ($.001) per  kilowatt-hour of net
nuclear  generation for the cost of nuclear fuel long-term storage and disposal.
This fee may be adjusted  prospectively  in order to ensure full cost  recovery.
The NWPA and the Standard  Contract  required the DOE to begin taking possession
of SNF generated by nuclear  generating units by no later than January 1998. The
DOE, however, failed to meet that deadline and its performance is expected to be
delayed significantly.  The DOE's current estimate for opening a SNF facility is
2010.  This  extended  delay in SNF  acceptance  by the DOE has led to  Exelon's
adoption  of dry  storage  at  its  Dresden  and  Peach  Bottom  Units  and  its
consideration of dry storage at other units.

                                       20


     In July 1998, ComEd filed a complaint  against the United States Government
(Government)  in the United States Court of Federal  Claims  (Court)  seeking to
recover damages caused by the DOE's failure to honor its contractual  obligation
to begin  disposing of SNF in January  1998.  In August 2001,  the Court granted
ComEd's motion for partial  summary  judgment for liability on ComEd's breach of
contract  claim.  In November  2001 the  Government  filed two  partial  summary
judgment  motions  relating to certain  damage issues in the case as well as two
motions to dismiss claims other than ComEd's breach of contract claim. The Court
has  deferred  briefing on those  motions  pending  completion  of  discovery on
certain damage issues.
     In July 2000,  PECO  entered  into an  agreement  with the DOE  relating to
PECO's  Peach Bottom  nuclear  generating  unit to address the DOE's  failure to
begin removal of SNF in January 1998 as required by the Standard Contract. Under
that  agreement,  the DOE agrees to provide  PECO with  credits  against  PECO's
future  contributions  to the  Nuclear  Waste  Fund  over the next ten  years to
compensate  PECO for SNF storage costs  incurred as a result of the DOE's breach
of the contract.  The agreement also provides that, upon PECO's request, the DOE
will take title to the SNF and the  interim  storage  facility  at Peach  Bottom
provided  certain  conditions  are met. In November 2000,  eight  utilities with
nuclear power plants filed a Joint  Petition for Review against the DOE with the
United  States Court of Appeals for the Eleventh  Circuit  seeking to invalidate
that portion of the  agreement  providing  for credits to PECO  against  nuclear
waste fund  payments on the ground  that such  provision  is a violation  of the
NWPA.  PECO intervened as a defendant in that case,  which is ongoing.  In April
2001, an individual  filed suit against the DOE with the United States  District
Court  for the  Middle  District  of  Pennsylvania  seeking  to  invalidate  the
agreement on the grounds  that the DOE has  violated the National  Environmental
Policy Act and the Administrative  Procedure Act. PECO intervened as a defendant
and moved to dismiss the complaint. The Court has not yet ruled on the motion to
dismiss.
     The Standard  Contract  with the DOE also  requires that PECO and ComEd pay
the DOE a one-time fee applicable to nuclear  generation  through April 6, 1983.
PECO's fee has been paid.  Pursuant to the Standard  Contract,  ComEd elected to
pay the one-time fee of $277 million, with interest to the date of payment, just
prior to the first  delivery  of SNF to the DOE. As of December  31,  2001,  the
liability for the one-time fee with interest was $843 million.  The  liabilities
for spent  nuclear  fuel  disposal  costs,  including  the  one-time  fee,  were
transferred to Generation as part of the corporate restructuring.

13.  Notes Payable



                                                                     2001             2000             1999
- ------------------------------------------------------------------------------------------------------------
                                                                                              
Average borrowings                                                   $193            $186              $242
Average interest rates, computed on daily basis                      4.01%           6.62%             5.62%
Maximum borrowings outstanding                                       $599            $500              $728
Average interest rates, at December 31                               2.63%           7.18%             6.80%
============================================================================================================


Exelon, ComEd, PECO and Generation entered into a $1.5 billion 364 day unsecured
revolving  credit  facility  on December  12,  2001 with a group of banks.  This
credit facility is used  principally to support the commercial paper programs of
Exelon,  ComEd and PECO. At December 31, 2001 and 2000, the amount of commercial
paper  outstanding  was $360 million and $161  million,  respectively.  Interest
rates on the advances from the credit facility are based on the London Interbank
Offering Rate (LIBOR) as of the date of the advance.
     In October  2000,  Exelon  obtained a $1.25  billion term loan due June 30,
2001 to finance the cash  consideration  paid to former holders of Unicom common
stock in  connection  with the Merger and to finance  the  purchase of its 49.9%
interest in Sithe in December  2000.  On December  31,  2000,  Exelon had $1,210
million outstanding on the term loan which is also reflected in Notes Payable on
the  Consolidated  Balance Sheets.  This term loan was refinanced with long-term
debt in the second quarter of 2001. The average  interest rate on this term loan
for  the  period  it was  outstanding  in 2001  and  2000  was  6.4%  and  7.6%,
respectively.

                                       21


14.  Long-Term Debt



                                                                                            at December 31,
                                                         --------------------------------------------------
                                                                            Maturity
                                                                 Rates          Date        2001      2000
- -----------------------------------------------------------------------------------------------------------
                                                                                     
ComEd Transitional Trust Notes
 Series 1998-A:                                            5.00%-6.00%     2002-2008     $ 2,380  $  2,720
PETT Bonds Series 1999-A:
      Fixed rates                                          5.63%-6.13%     2003-2008 (a)   2,561     2,706
      Floating rates                                      5.081%-6.52%     2004-2007 (a)     327     1,132
PETT Bonds Series 2000-A:                                   7.3%-7.65%     2002-2009 (a)     890     1,000
PETT Bonds Series 2001:                                          6.52%          2010 (a)     805        --
First and Refunding Mortgage Bonds (b) (c):
      Fixed rates                                         4.00%-10.00%     2002-2023       3,942     4,260
      Floating rates                                       1.46%-1.62%          2012         154       154
Notes payable                                              6.75%-9.20%     2002-2020       2,647     1,459
Pollution control notes:
      Fixed rates                                               5.875%          2007          44        46
      Floating rates                                       1.59%-2.45%     2009-2034         583       461
Notes payable - accounts receivable agreement            5.625%-10.25%          2005          55        40
Sinking fund debentures                                   3.125%-4.75%     2004-2011          23        27
- -----------------------------------------------------------------------------------------------------------
Total Long-Term debt (d)                                                                  14,411    14,005
Unamortized debt discount and premium, net                                                  (129)     (139)
Due within one year                                                                       (1,406)     (908)
- -----------------------------------------------------------------------------------------------------------
Long-Term debt                                                                           $12,876  $ 12,958
===========================================================================================================
<FN>
(a)  The maturity date  represents the expected final payment date which is the date when all principal and
     interest of the related  class of transition  bonds is expected to be paid in full in accordance  with
     the expected  amortization schedule for the applicable class. The date when all principal and interest
     must be paid in full for the PETT Bonds Series 1999-A,  2000-A and 2001-A are 2003 through 2009,  2003
     through  2010 and 2010,  respectively.  The  current  portion  of  transition  bonds is based upon the
     expected maturity date.
(b)  Utility plant of ComEd and PECO is subject to the liens of their respective mortgage indentures.
(c)  Includes first mortgage bonds issued under the ComEd and PECO mortgage  indentures  securing pollution
     control notes.
(d)  Long-term debt maturities in the period 2002 through 2006 and thereafter are as follows:

     2002          $  1,406
     2003             1,391
     2004               896
     2005             1,308
     2006             1,268
     Thereafter       8,142
     ----------------------
     Total          $14,411
     ======================
</FN>


In 2001,  ComEd  entered  into  forward  starting  interest  rate  swaps with an
aggregate  notional  amount of $250  million to manage  interest  rate  exposure
associated with the anticipated $400 million refinancing of ComEd First Mortgage
Bonds.  ComEd also entered into an interest rate swap  agreement with a notional
amount of $235 million to  effectively  convert fixed rate debt to floating rate
debt.
     In  1999,  PECO  entered  into  treasury   forwards   associated  with  the
anticipated  issuance of the Series  2000-A  Transition  Bonds.  On May 2, 2000,
these  instruments were settled with net proceeds to the  counterparties  of $13
million  which has been  deferred  and is being  amortized  over the life of the
Series 2000-A Transition Bonds as an increase to interest expense.

                                       22


     In 1998, PECO entered into treasury  forwards and forward starting interest
rate swaps to manage  interest rate  exposure  associated  with the  anticipated
issuance  of the  Series  1999-A  Transition  Bonds.  On March 18,  1999,  these
instruments  were  settled  with net  proceeds of $80 million to PECO which were
deferred and are being  amortized over the life of the Series 1999-A  Transition
Bonds as a reduction of interest expense.
     In connection  with the  refinancing  of a portion of the two floating rate
series of  transition  bonds in the first  quarter of 2001,  PECO  settled  $318
million of a forward starting  interest rate swap resulting in a $6 million gain
which is reflected  in other income and  deductions  due to the  transaction  no
longer being probable. Also, in connection with the refinancing,  PECO settled a
portion of the  interest  rate swaps and the  remaining  portion of the  forward
starting  interest  rate swaps  resulting  in gains of $25  million,  which were
deferred  and are  being  amortized  over the  expected  remaining  lives of the
related debt.
     At December 31, 2001 and 2000,  the aggregate  unamortized  net gain on the
settlement of PECO transactions was $55 million and $51 million, respectively.
     Prepayment premiums of $39 million, offset by unamortized issuance premiums
of $17 million,  associated with the early  retirement of debt in 2001 have been
deferred in regulatory assets and will be amortized to interest expense over the
life of the related new debt issuance  consistent with regulatory  recovery.  In
2000 and 1999, Exelon incurred  extraordinary charges aggregating $6 million ($4
million, net of tax) and $62 million ($37 million, net of tax), respectively for
prepayment  premiums and the write-offs of unamortized  deferred financing costs
associated with the early retirement of debt.

15.  Income Taxes

Income tax expense (benefit) is comprised of the following components:



                                                                           For the Years Ended December 31,
                                                                 ------------------------------------------
                                                                   2001             2000              1999
- -----------------------------------------------------------------------------------------------------------
                                                                                           
Included in operations:
Federal
    Current                                                      $  880            $ 163            $  293
    Deferred                                                        (61)             163                 6
    Investment tax credit, net                                      (14)             (15)              (14)
State
    Current                                                         119               --                72
    Deferred                                                          7               30                 1
- -----------------------------------------------------------------------------------------------------------
                                                                 $  931            $ 341            $  358
===========================================================================================================
Included in extraordinary item:
Federal
    Current                                                      $   --            $  (2)           $  (19)
State
    Current                                                          --               --                (6)
- -----------------------------------------------------------------------------------------------------------
                                                                 $   --            $  (2)           $  (25)
===========================================================================================================
Included in cumulative effects of changes
 in accounting principles:
Federal
    Deferred                                                     $    6            $  13            $   --
State
    Deferred                                                          2                3                --
- -----------------------------------------------------------------------------------------------------------
                                                                 $    8            $  16            $   --
===========================================================================================================


                                       23


The effective  income tax rate varies from the U.S.  Federal  statutory rate for
the years ended December 31 principally due to the following:




                                                                           For the Years Ended December 31,
                                                                 ------------------------------------------
                                                                   2001             2000              1999
- -----------------------------------------------------------------------------------------------------------
                                                                                            
U.S. Federal statutory rate                                          35.0%            35.0%          35.0%
Increase (decrease) due to:
    Property basis differences                                       (0.2)             0.1           (0.8)
    State income taxes, net of Federal income tax benefit             3.4              2.1            4.8
    Amortization of investment tax credit                            (0.5)            (1.6)         (1.5)
    Amortization of goodwill                                          1.9              0.9           --
    Prior period income taxes                                        (0.3)             0.4           (0.7)
    Dividends on PECO Preferred Stock                                 0.2              0.4            0.4
    Other, net                                                        0.2              0.3           (0.1)
- -----------------------------------------------------------------------------------------------------------
Effective income tax rate                                            39.7%            37.6%          37.1%
===========================================================================================================


The tax effects of temporary  differences giving rise to significant portions of
Exelon's  deferred tax assets and  liabilities  as of December 31, 2001 and 2000
are presented below:



                                                                                    2001              2000
- -----------------------------------------------------------------------------------------------------------
                                                                                            
Deferred tax liabilities:
    Plant basis difference                                                       $ 5,116          $  4,535
    Deferred gain on like-kind exchange                                              453               466
    Deferred investment tax credit                                                   222               330
    Deferred debt refinancing costs                                                   44                48
    Other, net                                                                        63                 5
- -----------------------------------------------------------------------------------------------------------
Total deferred tax liabilities                                                     5,898             5,384
- -----------------------------------------------------------------------------------------------------------
Deferred tax assets:
    Decommissioning and decontamination obligations                                 (898)               --
    Deferred pension and postretirement obligations                                 (382)             (437)
    Other, net                                                                       (22)             (270)
- -----------------------------------------------------------------------------------------------------------
Total deferred tax assets                                                         (1,302)             (707)
- -----------------------------------------------------------------------------------------------------------
Deferred income taxes (net) on the balance sheet                                 $ 4,596          $  4,677
===========================================================================================================


Prior to 2001, the offsetting deferred tax assets and liabilities resulting from
decommissioning  and  decontamination  assets and obligations,  accounted for as
regulatory  assets  and  liabilities,  were  recorded  within  the  plant  basis
difference caption above. As a result of the corporate restructuring, on January
1, 2001, the decommissioning and decontamination obligations were transferred to
Generation,  an unregulated subsidiary;  however the regulatory asset related to
decommissioning and decontamination remained with ComEd as a receivable from its
regulated customers. The deferred tax liability relating to the regulatory asset
is reflected in the plant basis difference  caption,  however,  the deferred tax
asset related to the decommissioning and decontamination obligation is no longer
recorded in the plant basis  difference  caption with the regulatory  assets and
liabilities.
     In accordance with regulatory  treatment of certain temporary  differences,
Exelon has recorded a regulatory asset for recoverable  deferred income taxes of
$701 million and $632 million at December 31, 2001 and 2000, respectively. These
recoverable  deferred  income taxes include the deferred tax effects  associated
principally with liberalized  depreciation  accounted for in accordance with the
ratemaking  policies of the ICC and PUC, as well as the revenue impacts thereon,
and assume continued recovery of these costs in future rates.

                                       24


     The  Internal  Revenue  Service  and  certain  state  tax  authorities  are
currently auditing certain tax returns of Exelon's predecessor entities,  Unicom
and PECO.  The  current  audits are not  expected  to have an adverse  impact on
financial condition or results of operations of Exelon.

16.  Retirement Benefits

Exelon sponsors defined benefit pension plans and postretirement welfare benefit
plans  applicable to essentially all ComEd,  PECO,  Generation and BSC employees
and certain employees of Enterprises.  In 2001,  Exelon  consolidated the former
Unicom and PECO plans into Exelon plans.  Essentially all management  employees,
and electing union  employees,  hired on or after January 1, 2001 participate in
newly  established  cash balance  pension plans.  Management  employees who were
active  participants in the former Unicom and PECO pension plans on December 31,
2000,  and  remain  employed  by  Exelon  on  January  1,  2002,  will  have the
opportunity to continue to participate in the pension plan or to transfer to the
cash balance plan.  Benefits under Exelon's pension plans generally reflect each
employee's  compensation,  years of service  and age at  retirement.  Funding is
based upon  actuarially  determined  contributions  that take into  account  the
amount deductible for income tax purposes and the minimum contribution  required
under the  Employee  Retirement  Income  Security Act of 1974,  as amended.  The
following tables provide a reconciliation  of benefit  obligations,  plan assets
and funded status of the plans.



                                                           Pension Benefits  Other Postretirement Benefits
                                                   --------------------------------------------------------
                                                        2001           2000           2001            2000
- -----------------------------------------------------------------------------------------------------------
                                                                                      
Change in Benefit Obligation:
Net benefit obligation at beginning of year         $  6,695        $ 2,054      $   2,275        $    798
Service cost                                              94             39             42              24
Interest cost                                            498            219            161              83
Plan participants' contributions                          --             --              4               1
Plan amendments                                           44             --           (191)             --
Actuarial (gain)loss                                     254            228            173             144
Acquisitions                                              --          4,231             --           1,228
Curtailments/Settlements                                 (38)           (74)            --               4
Special accounting costs                                  48            217              3              48
Gross benefits paid                                     (494)          (219)          (136)            (55)
- -----------------------------------------------------------------------------------------------------------
Net benefit obligation at end of year               $  7,101        $ 6,695      $   2,331        $  2,275
===========================================================================================================
Change in Plan Assets:
Fair value of plan assets at beginning of year      $  7,000        $ 2,982      $   1,188        $    244
Actual return on plan assets                            (265)            173           (14)             (7)
Employer contributions                                    38              2             90              84
Plan participants' contributions                          --             --              4               1
Acquisitions                                              --          4,062             --             921
Gross benefits paid                                     (494)          (219)          (136)            (55)
- -----------------------------------------------------------------------------------------------------------
Fair value of plan assets at end of year            $  6,279        $ 7,000      $   1,132        $  1,188
===========================================================================================================
Funded status at end of year                        $   (822)        $   305      $ (1,199)       $ (1,087)
Miscellaneous adjustment                                  --             --             --               5
Unrecognized net actuarial (gain)loss                    397           (777)           440             143
Unrecognized prior service cost                          108             77           (191)             --
Unrecognized net transition obligation (asset)           (17)           (21)           103             122
- -----------------------------------------------------------------------------------------------------------
Net amount recognized at end of year                $  (334)        $  (416)     $    (847)       $   (817)
===========================================================================================================


                                       25




                                               Pension Benefits Other                              Postretirement Benefits
                                     -------------------------------------------------------------------------------------
                                      2001            2000             1999             2001            2000          1999
- --------------------------------------------------------------------------------------------------------------------------
                                                                                                   
Weighted-average assumptions
as of December 31,
Discount rate                        7.35%           7.60%            8.00%            7.35%          7.60%          8.00%
Expected return on plan assets       9.50%           9.50%            9.50%            9.50%          8.00%          8.00%
Rate of compensation increase        4.00%           4.30%            5.00%            4.00%          4.30%          5.00%
Health care cost trend on
covered charges                        N/A             N/A              N/A           10.00%          7.00%          8.00%
                                                                                  decreasing     decreasing     decreasing
                                                                                 to ultimate    to ultimate    to ultimate
                                                                               trend of 4.5%  trend of 5.0%  trend of 5.0%
                                                                                     in 2008        in 2005        in 2006

                                                     Pension Benefits Other                       Postretirement Benefits
                                     -------------------------------------------------------------------------------------
                                       2001           2000             1999            2001            2000          1999
- --------------------------------------------------------------------------------------------------------------------------
Components of net periodic
benefit cost (benefit):
Service cost                          $  94         $   39           $   29        $     42          $   24         $  19
Interest cost                           498            219              154             161              83            57
Expected return on assets              (625)          (316)            (222)            (99)            (34)          (16)
Amortization of:
 Transition obligation (asset)           (4)            (4)              (4)             10              12            12
 Prior service cost                       9              7                5              (9)             --            --
 Actuarial (gain) loss                  (25)           (26)              (8)              1              --            --
Curtailment charge (credit)             (12)           (12)              --               9              24            --
Settlement charge (credit)               (9)           (16)              --              --              --            --
- --------------------------------------------------------------------------------------------------------------------------
Net periodic benefit cost (benefit)   $ (74)        $ (109)          $  (46)       $    115          $  109         $  72
==========================================================================================================================
Special accounting costs              $  48         $  217           $   --        $      3          $   48         $  --
==========================================================================================================================


Sensitivity of retiree welfare results


- -----------------------------------------------------------------------------------------------------------
                                                                                                
Effect of a one percentage point increase in assumed health care cost trend
     on total service and interest cost components                                                 $   33
     on postretirement benefit obligation                                                          $  276
Effect of a one percentage point decrease in assumed health care cost trend
     on total service and interest cost components                                                 $  (28)
     on postretirement benefit obligation                                                          $ (239)
- -----------------------------------------------------------------------------------------------------------


Prior  service  cost is  amortized  on a  straight-line  basis over the  average
remaining  service  period of employees  expected to receive  benefits under the
plans.
     Special  accounting  costs of $48  million  in 2001  represent  accelerated
separation and enhancement  benefits  provided to PECO employees  expected to be
terminated as a result of the Merger.  Special  accounting costs in 2000 of $217
million  represented PECO's accelerated  separation and enhancement  benefits of
$96 million and ComEd's accelerated liability increase of $121 million inclusive
of $96 million for separation benefits and $25 million for plan enhancements.

                                       26


     Exelon provides certain health care and life insurance benefits for retired
employees.   In  2001,   Exelon  adopted  an  amendment  to  the  former  Unicom
postretirement medical benefit plan that changed the eligibility  requirement of
the plan to cover only  employees  who retire with 10 years of service after age
45 rather  than with 10 years of  service  and  having  attained  the age of 55.
Welfare benefits for active employees are provided by several insurance policies
or self-funded plans whose premiums or contributions are based upon the benefits
paid during the year.
     Additionally,  Exelon sponsors nonqualified  supplemental  retirement plans
which  cover any excess  pension  benefits  that would be payable to  management
employees under the qualified plan but which are limited by the Internal Revenue
Code.  The fair value of plan assets  excludes  $58 million  held in trust as of
December 31, 2001 for the payment of benefits under the supplemental plan and $8
million held in trust as of December 31, 2001 for the payment of  postretirement
medical benefits.
     Exelon sponsors savings plans for the majority of its employees.  The plans
allow  employees to  contribute a portion of their pretax  income in  accordance
with  specified  guidelines.   Exelon  matches  a  percentage  of  the  employee
contribution up to certain limits. The cost of Exelon's matching contribution to
the savings plans totaled $57 million,  $17 million and $7 million in 2001, 2000
and 1999, respectively.

17.  Preferred Securities of Subsidiaries

Preferred and Preference Stock
At December 31, 2001 and 2000,  Series  Preference  Stock of PECO, no par value,
consisted of 100,000,000 shares authorized, of which no shares were outstanding.
At December 31, 2001 and 2000, cumulative Preferred Stock of PECO, no par value,
consisted of 15,000,000 shares authorized and the amounts set forth below:



                                                                                            at December 31,
                                            ---------------------------------------------------------------
                             Current              2001              2000             2001              2000
                          Redemption        ---------------------------------------------------------------
                            Price(a)                 Shares Outstanding                       Dollar Amount
- -----------------------------------------------------------------------------------------------------------
                                                                                        
Series (without mandatory
    redemption)
$4.68                      $  104.00          150,000           150,000            $  15            $   15
$4.40                         112.50          274,720           274,720               27                27
$4.30                         102.00          150,000           150,000               15                15
$3.80                         106.00          300,000           300,000               30                30
$7.48                            (b)          500,000           500,000               50                50
- -----------------------------------------------------------------------------------------------------------
                                            1,374,720         1,374,720              137               137
Series (with mandatory
    redemption)
$6.12                            (c)          185,400           370,800               19                37
- -----------------------------------------------------------------------------------------------------------
Total preferred stock                       1,560,120         1,745,520            $ 156            $  174
===========================================================================================================
<FN>
(a)  Redeemable, at the option of PECO, at the indicated dollar amounts per share, plus accrued dividends.
(b)  None of the shares of this series is subject to redemption prior to April 1, 2003.
(c)  PECO made the annual  sinking fund payments of $18.5 million on August 1, 2001 and August 2, 2000. The
     future sinking fund requirement in 2002 is $18.5 million.
</FN>


At December 31, 2001,  ComEd Prior  Preferred Stock and ComEd  Preference  Stock
consisted of 850,000 and  6,810,451  shares  authorized,  respectively,  none of
which were outstanding.

                                       27


Company Obligated  Mandatorily  Redeemable  Preferred Securities At December 31,
2001 and 2000, subsidiary trusts of PECO and ComEd had outstanding the following
preferred securities:



                                                                                           at December 31,
                                                            -----------------------------------------------
                           Mandatory    Distri-     Liqui-           2001           2000     2001     2000
                          Redemption     bution     dation  -----------------------------------------------
                                Date       Rate      Value  Trust Securities Outstanding     Dollar Amount
- -----------------------------------------------------------------------------------------------------------
                                                                               
PECO Energy
    Capital Trust II            2037      8.00%   $     25      2,000,000      2,000,000    $  50   $   50
PECO Energy
    Capital Trust III           2028      7.38%      1,000         78,105         78,105       78       78
- -----------------------------------------------------------------------------------------------------------
Total                                                           2,078,105      2,078,105    $ 128   $  128
===========================================================================================================
ComEd Financing I               2035      8.48%   $     25      8,000,000      8,000,000    $ 200      200
ComEd Financing II              2027      8.50%      1,000        150,000        150,000      150      150
Unamortized Discount                                                                          (21)     (22)
- -----------------------------------------------------------------------------------------------------------
    Total                                                       8,150,000      8,150,000    $ 329   $  328
===========================================================================================================


The securities issued by the PECO trusts represent Company Obligated Mandatorily
Redeemable  Preferred Securities of a Partnership (COMRPS) having a distribution
rate and liquidation  value equivalent to the trust  securities.  The COMRPS are
the sole assets of these trusts and represent limited  partnership  interests of
PECO Energy Capital, L.P.  (Partnership),  a Delaware limited partnership.  Each
holder of a trust's securities is entitled to withdraw the corresponding  number
of COMRPS  from the trust in exchange  for the trust  securities  so held.  Each
series  of COMRPS  is  supported  by  PECO's  deferrable  interest  subordinated
debentures,  held by the Partnership,  which bear interest at rates equal to the
distribution rates on the related series of COMRPS.
     ComEd Financing I and ComEd Financing II are wholly owned subsidiary trusts
of ComEd.  Each ComEd trust's sole assets are subordinated  deferrable  interest
securities issued by ComEd bearing interest rates equivalent to the distribution
rate of the related trust security.
     The interest expense on the debentures and deferrable  interest  securities
is included in  Distributions  on Preferred  Securities of  Subsidiaries  in the
Consolidated Statements of Income and is deductible for income tax purposes.

18.  Common Stock

At December  31, 2001 and 2000,  common  stock  without par value  consisted  of
600,000,000  and 600,000,000  shares  authorized and 321,006,904 and 319,005,112
shares outstanding, respectively.

Stock Repurchase
In January 2000, in connection  with the Merger  Agreement,  PECO entered into a
forward  purchase  agreement  to purchase  $500 million of its common stock from
time to time.  Settlement  of this  forward  purchase  agreement  was, at PECO's
election, on a physical, net share or net cash basis. In May 2000, PECO utilized
a portion of the proceeds from the  securitization of its stranded cost recovery
to physically  settle this agreement,  resulting in the repurchase of 12 million
shares of common stock for $496 million.  In connection  with the  settlement of
this  agreement,  PECO  received  $1 million  in  accumulated  dividends  on the
repurchased shares and paid $6 million of interest.
     During 1997,  PECO's Board of Directors  authorized the repurchase of up to
25 million  shares of its common  stock from time to time  through  open-market,
privately  negotiated  and/or other types of transactions in conformity with the
rules of the SEC.  Pursuant to these  authorizations,  PECO entered into forward
purchase  agreements to be settled from time to time, at PECO's  election,  on a
physical,  net share or net cash basis.  PECO  utilized  the  proceeds  from the
securitization  of a portion of its stranded  cost recovery in the first quarter
of 1999, to physically settle these agreements,  resulting in the purchase of 21
million  shares  of  common  stock  for $696  million.  In  connection  with the
settlement  of these  agreements,  PECO  received  $18  million  in  accumulated
dividends on the repurchased shares and paid $6 million of interest.

                                       28


Stock-Based Compensation Plans
Exelon  maintains  a  Long-Term  Incentive  Plan  (LTIP) for  certain  full-time
salaried employees and previously maintained a broad-based incentive program for
certain other employees.  The types of long-term incentive awards that have been
granted under the LTIP are non-qualified  options to purchase shares of Exelon's
common stock and common stock awards. At December 31, 2001, there were 9,000,000
options  authorized for issuance under the LTIP and 2,000,000 options authorized
under  the  broad-based  incentive  program.  Exelon  uses  the  disclosure-only
provisions of SFAS No. 123, "Accounting for Stock-Based  Compensation" (SFAS No.
123). If Exelon elected to account for its stock-based  compensation plans based
on SFAS No. 123, it would have  recognized  compensation  expense of $7 million,
$60 million and $10 million, for 2001, 2000 and 1999, respectively. In addition,
net income  would have been $1,421  million,  $526  million and $560 million for
2001, 2000 and 1999, respectively, and earnings per share would have been $4.41,
$2.58 and $2.84 for 2001, 2000 and 1999, respectively.
     The exercise  price of the stock  options is equal to the fair market value
of the underlying  stock on the date of option grant.  Options granted under the
LTIP and the broad-based incentive program become exercisable upon attainment of
a target share value and/or time.  All options  expire 10 years from the date of
grant.  Information  with  respect  to the  LTIP and the  broad-based  incentive
program at December  31, 2001 and changes for the three years then ended,  is as
follows:



                                             Weighted                   Weighted                  Weighted
                                              Average                    Average                   Average
                                             Exercise                   Exercise                  Exercise
                                                Price                      Price                     Price
                                  Shares  (per share)       Shares   (per share)       Shares  (per share)
                                    2001         2001         2000          2000         1999         1999
- -----------------------------------------------------------------------------------------------------------
                                                                                 
Balance at January 1          15,287,859        42.13    6,065,897       $ 31.91    4,663,008      $ 27.71
Options granted/assumed          629,200        66.42   11,089,051 (a)     46.09    2,049,789        39.32
Options exercised             (1,695,474)       34.84   (1,725,058)        31.79     (568,000)        25.17
Options canceled                (181,589)       52.64     (142,031)        39.95      (78,900)        38.14
- -----------------------------------------------------------------------------------------------------------
Balance at December 31        14,039,996        43.96   15,287,859         42.13    6,065,897        31.91
===========================================================================================================
Exercisable at
  December 31                  8,006,193        38.75    4,953,942         30.04    3,331,903        25.60
===========================================================================================================
Weighted average fair value
  of options granted
  during year                                 $ 19.59                    $ 16.62                   $  8.24
===========================================================================================================
<FN>
(a)      Includes 5.3 million options converted in the Merger.
</FN>


The fair  value of each  option  is  estimated  on the date of grant  using  the
Black-Scholes   option-pricing   model  with  the  following   weighted  average
assumptions used for grants in 2001, 2000 and 1999, respectively:



                                                                   2001             2000              1999
- -----------------------------------------------------------------------------------------------------------
                                                                                              
Dividend yield                                                      3.2%             3.6%              5.7%
Expected volatility                                                36.8%            36.8%             30.5%
Risk-free interest rate                                             4.9%             5.9%              5.9%
Expected life (years)                                               5.0              5.0               9.5
- -----------------------------------------------------------------------------------------------------------


                                       29


At  December  31,  2001,  the options  outstanding,  based on ranges of exercise
prices, were as follows:



                                                    Options Outstanding                Options Exercisable
                         ----------------------------------------------------------------------------------
                                             Weighted
                                              Average
                                            Remaining          Weighted                           Weighted
                                          Contractual           Average                            Average
Range of                      Number             Life          Exercise           Number          Exercise
Exercise Prices          Outstanding          (years)             Price      Exercisable             Price
- ------------------------------------------------------------------------------------------------------------
                                                                                   
$10.01-$20.00                597,400             6.14            $19.68          597,400             $19.68
$20.01-$30.00              1,639,611             4.40             25.03        1,639,611              25.03
$30.01-$40.00              5,395,604             7.54             37.85        3,069,046              37.63
$40.01-$50.00              1,438,206             7.43             41.56        1,023,557              41.21
$50.01-$60.00              4,332,775             8.82             59.46        1,669,077              59.49
$60.01-$70.00                636,400             9.04             67.30            7,502              64.97
- ------------------------------------------------------------------------------------------------------------
Total                     14,039,996                                           8,006,193
============================================================================================================


Under  Exelon's  LTIP 195,725  shares and 120,300  shares of common stock awards
were issued  during 2000 and 1999,  respectively.  Vesting for the common  stock
awards is over a period not to exceed 10 years from the grant date. Compensation
cost of $14 million  associated  with these  awards is amortized to expense over
the vesting period. The related  accumulated  amortization was approximately $12
million,  $7  million  and $2  million  at  December  31,  2001,  2000 and 1999,
respectively.
     Additionally  under Exelon's LTIP,  426,794 and 159,129 Exelon common share
awards were granted during 2001 and 2000, respectively. Compensation cost of $30
million is to be accrued to  expense  over the  vesting  period of up to 5 years
from  the  date  of  the  grant.  The  related   accumulated   amortization  was
approximately  $17  million  and $6  million  at  December  31,  2001 and  2000,
respectively.
     In June 2001, the Board of Directors of Exelon  approved the Employee Stock
Purchase Plan (ESPP). The purpose of the ESPP is to provide employees of Exelon,
and its  subsidiary  companies the right to purchase  shares of Exelon's  common
stock at  below-market  prices.  A total of 5,000,000  shares of Exelon's common
stock have been reserved for issuance under the ESPP.  Employees'  purchases are
limited to no more than 125 shares per quarter and no more than  $25,000 in fair
market value in any plan year. During 2001,  employees  purchased 137,648 shares
of Exelon common stock under the ESPP.

                                       30


19.  Fair Value of Financial Assets and Liabilities

The  carrying  amounts  and  fair  values  of  Exelon's   financial  assets  and
liabilities as of December 31, 2001 and 2000 were as follows:



                                                              2001                                    2000
                                        -------------------------------------------------------------------
                                          Carrying                                Carrying
                                            Amount     Fair Value                  Amount       Fair Value
- -----------------------------------------------------------------------------------------------------------
                                                                                     
Non-derivatives:
Liabilities
     Long-term debt (including
       amounts due within one year)      $  14,282        $ 14,912               $ 13,866        $  14,336
Preferred Securities of Subsidiaries           613             572                    630              601
Derivatives:
     Interest rate swaps                       (20)            (20)                    --              (19)
     Forward interest rate swaps                (1)             (1)                    --               40
     Energy derivatives                         92              92                    (34)             (34)
- -----------------------------------------------------------------------------------------------------------


Cash and cash equivalents,  customer accounts  receivable and trust accounts for
decommisioning nuclear plants are recorded at their fair value.
     As of December  31, 2001 and 2000,  Exelon's  carrying  amounts of cash and
cash  equivalents  and  accounts  receivable  are  representative  of fair value
because of the short-term nature of these instruments.  Fair values of the trust
accounts  for  decommissioning  nuclear  plants,  long-term  debt and  preferred
securities of  subsidiaries  are estimated based on quoted market prices for the
same or similar issues. The fair value of Exelon's interest rate swaps and power
purchase and sale contracts is determined using quoted exchange prices, external
dealer prices, or internal valuation models which utilize  assumptions of future
energy prices and available market pricing curves.
     Financial  instruments that potentially subject Exelon to concentrations of
credit risk  consist  principally  of cash  equivalents  and  customer  accounts
receivable.   Exelon  places  its  cash  equivalents  with  high-credit  quality
financial institutions. Generally, such investments are in excess of the Federal
Deposit Insurance Corporation limits. Concentrations of credit risk with respect
to customer  accounts  receivable  are limited due to Exelon's  large  number of
customers and their dispersion across many industries.
     Exelon has entered into interest rate swaps and  forward-starting  interest
rate swaps to manage interest rate exposure in the aggregate  notional amount of
$576 million.  These swaps have been  designated as cash-flow  hedges under SFAS
No. 133, and as such, as long as the hedge remains  effective and the underlying
transaction  remains probable,  changes in the fair value of these swaps will be
recorded in  accumulated  other  comprehensive  income (loss) until earnings are
affected by the variability of the cash flows being hedged.
     Exelon has also entered into an interest  rate swap to lock in the value of
a $235 million fixed-rate  obligation of ComEd. This swap has been designated as
a fair-value hedge, as defined in SFAS No. 133 and as such,  changes in the fair
value of the swap will be recorded in  earnings.  However,  as long as the hedge
remains effective and the underlying  transaction  remains probable,  changes in
the fair  value of the swap will be offset by  changes  in the fair value of the
hedged  liabilities.  Any  change in the fair  value of the hedge as a result of
ineffectiveness would be recorded immediately in earnings.
     The  notional  amount of  derivatives  do not  represent  amounts  that are
exchanged by the parties and, thus, are not a measure of Exelon's exposure.  The
amounts  exchanged  are  calculated  on the basis of the  notional  or  contract
amounts,  as well as on the  other  terms of the  derivatives,  which  relate to
interest rates and the volatility of these rates.
     Exelon  utilizes  derivatives  to manage the  utilization  of its available
generating capacity and provision of wholesale energy to its affiliates.  Exelon
also utilizes energy option contracts and energy financial swap  arrangements to
limit the market price risk associated with forward energy commodity  contracts.
Additionally,  Exelon enters into certain energy-related derivatives for trading
or speculative purposes.
     Exelon  would  be  exposed  to  credit-related   losses  in  the  event  of
non-performance  by the counterparties  that issued the derivative  instruments.
The credit exposure of derivatives contracts is represented by the fair value of
contracts at the

                                       31


reporting  date.  Exelon's  interest  rate  swaps are  documented  under  master
agreements.  Among other things,  these agreements  provide for a maximum credit
exposure for both parties.  Payments are required by the appropriate  party when
the maximum limit is reached.  The majority of power purchase and sale contracts
are documented under master netting agreements.
     On January 1, 2001, Exelon  recognized a non-cash gain of $12 million,  net
of income taxes, in earnings and deferred a non-cash gain of $44 million, net of
income  taxes,  in  accumulated  other  comprehensive  income,  a  component  of
shareholders'  equity,  to reflect  the  initial  adoption  of SFAS No.  133, as
amended. SFAS No. 133 must be applied to all derivative instruments and requires
that such  instruments  be recorded in the balance sheet either as an asset or a
liability measured at their fair value through earnings, with special accounting
permitted for certain qualifying hedges.
     During 2001, Exelon  recognized net gains of $16 million ($10 million,  net
of income  taxes)  relating  to  mark-to-market  (MTM)  adjustments  of  certain
non-trading  power  purchase  and sale  contracts  pursuant to SFAS No. 133. MTM
adjustments on power purchase contracts are reported in fuel and purchased power
and MTM  adjustments on power sale contracts are reported as Operating  Revenues
in the Consolidated  Statements of Income.  During 2001,  Exelon  recognized net
gains  aggregating $14 million ($10 million,  net of income taxes) on derivative
instruments  entered  into for  trading  purposes.  Exelon  commenced  financial
trading  in the  second  quarter  of 2001.  Gains  and  losses  associated  with
financial   trading  are  reported  as  Other  Income  and   Deductions  in  the
Consolidated  Statements of Income.  During 2001,  no amounts were  reclassified
from  accumulated  other  comprehensive  income  into  earnings  as a result  of
forecasted energy commodity  transactions no longer being probable.  For 2001, a
$6  million  gain ($4  million,  net of  income  taxes)  was  reclassified  from
accumulated other  comprehensive  income into earnings as a result of forecasted
financing transactions no longer being probable.
     As of December  31, 2001,  $65 million of deferred net gains on  derivative
instruments  accumulated  in  other  comprehensive  income  are  expected  to be
reclassified to earnings  during the next twelve months.  Amounts in accumulated
other comprehensive  income related to interest rate cash flows are reclassified
into  earnings  when  the  forecasted   interest  payment  occurs.   Amounts  in
accumulated  other  comprehensive  income related to energy commodity cash flows
are  reclassified  into  earnings  when the  forecasted  purchase or sale of the
energy commodity occurs.  The majority of Exelon's cash flow hedges are expected
to settle within the next 3 years.
     Exelon  classifies  investments in the trust  accounts for  decommissioning
nuclear plants as available-for-sale. The following tables show the fair values,
gross  unrealized  gains and losses and amortized costs bases for the securities
held in these trust accounts.



                                                                                           December 31,2001
                                             --------------------------------------------------------------
                                                                    Gross          Gross
                                                 Amortized     Unrealized     Unrealized         Estimated
                                                      Cost          Gains         Losses        Fair Value
- -----------------------------------------------------------------------------------------------------------
                                                                                    
Equity securities                                 $  1,666   $        130     $     (236)       $    1,560
Debt securities
    Government obligations                             882             28             (3)              907
    Other debt securities                              701             16            (19)              698
- -----------------------------------------------------------------------------------------------------------
Total debt securities                                1,583             44            (22)            1,605
- -----------------------------------------------------------------------------------------------------------
Total available-for-sale securities               $   3,249   $       174     $     (258)        $   3,165
===========================================================================================================


                                                                                           December 31,2000
                                             --------------------------------------------------------------
                                                                    Gross          Gross
                                                 Amortized     Unrealized     Unrealized         Estimated
                                                      Cost          Gains         Losses        Fair Value
- -----------------------------------------------------------------------------------------------------------
                                                                                    
Equity securities                                 $  1,702   $        144     $     (180)       $    1,666
Debt securities
    Government obligations                             932             40             --               972
    Other debt securities                              470              8             (7)              471
- -----------------------------------------------------------------------------------------------------------
Total debt securities                                1,402             48             (7)            1,443
- -----------------------------------------------------------------------------------------------------------
Total available-for-sale securities               $  3,104   $        192     $     (187)       $    3,109
===========================================================================================================


                                       32


Net unrealized  losses of $84 million and gains of $5 million were recognized in
Accumulated Depreciation,  Regulatory Assets and Accumulated Other Comprehensive
Income in Exelon's  Consolidated  Balance  Sheets at December 31, 2001 and 2000,
respectively.



                                                                                 For the Years December 31
                                                                                ---------------------------
                                                                                    2001              2000
- -----------------------------------------------------------------------------------------------------------
                                                                                          
Proceeds from sales                                                              $ 1,624        $      265
Gross realized gains                                                                  76                 9
Gross realized losses                                                               (189)              (46)
- -----------------------------------------------------------------------------------------------------------


Net realized  gains of $14 million and net  realized  losses of $37 million were
recognized  in  Accumulated  Depreciation  and  Regulatory  Assets  in  Exelon's
Consolidated Balance Sheets at December 31, 2001 and 2000, respectively and $127
million of net realized  losses was recognized in Other Income and Deductions in
Exelon's Consolidated Income Statements for 2001.
     The available-for-sale securities held at December 31, 2001 have an average
maturity of eight to ten years.  The cost of these  securities was determined on
the basis of specific identification.  See Note 12 - Nuclear Decommissioning and
Spent Fuel Storage for further information regarding the nuclear decommissioning
trusts.

20.  Commitments and Contingencies

Capital Commitments
In December 2001, Generation agreed to purchase two generation plants located in
the  Dallas-Fort  Worth  metropolitan  area from TXU Corp.  (TXU) to expand  its
presence in the Texas region.  The $443 million  purchase of the two natural-gas
and oil-fired  plants,  to be funded through available cash and commercial paper
proceeds,  will add approximately 2,300 megawatts (MW) capacity. The transaction
includes a power purchase  agreement for TXU to purchase power during the months
of May through  September from 2002 through 2006.  During the periods covered by
the power purchase  agreement,  TXU will make fixed  capacity  payments and will
provide fuel to Exelon in return for exclusive rights to the energy and capacity
of the generation  plants.  The closing of the  acquisition  is contingent  upon
receipt of the necessary regulatory approvals and is anticipated to occur in the
first  quarter of 2002.  Also,  Exelon has  committed  to provide  AmerGen  with
capital   contributions   equivalent  to  50%  of  the  purchase  price  of  any
acquisitions  AmerGen  makes in 2002 and Exelon  and  British  Energy  have each
agreed to  provide  up to $100  million  to  AmerGen  at any time for  operating
expenses.

Nuclear Insurance
The Price-Anderson Act limits the liability of nuclear reactor owners for claims
that could arise from a single  incident.  The current limit is $9.5 billion and
is subject to change to account for the effects of inflation  and changes in the
number of  licensed  reactors.  Through  its  subsidiaries,  Exelon  carries the
maximum  available  commercial  insurance of $200 million and the remaining $9.3
billion is provided through  mandatory  participation in a financial  protection
pool.  Under the  Price-Anderson  Act,  all  nuclear  reactor  licensees  can be
assessed up to $89 million per reactor per incident, payable at no more than $10
million  per  reactor  per  incident  per year.  This  assessment  is subject to
inflation and state premium taxes. In addition,  the U.S.  Congress could impose
revenue-raising   measures   on  the  nuclear   industry  to  pay  claims.   The
Price-Anderson Act is scheduled to expire in August 2002.  Although  replacement
legislation  has been  proposed  from time to time,  Exelon is unable to predict
whether replacement legislation will be enacted.
     Exelon   carries   property   damage,    decontamination    and   premature
decommissioning  insurance  for each station loss  resulting  from damage to its
nuclear plants.  In the event of an accident,  insurance  proceeds must first be
used for reactor stabilization and site decontamination. If the decision is made
to  decommission  the  facility,  a portion of the  insurance  proceeds  will be
allocated  to a  fund,  which  Exelon  is  required  by the  Nuclear  Regulatory
Commission  (NRC) to  maintain,  to provide for  decommissioning  the  facility.
Exelon is unable to predict the timing of the availability of insurance proceeds
to Exelon and the amount of such proceeds  which would be  available.  Under the
terms of the various insurance  agreements,  Exelon could be

                                       33


assessed  up to $121  million for losses  incurred  at any plant  insured by the
insurance  companies.  In the  event  that one or more acts of  terrorism  cause
accidental  property  damage  within  a  twelve  month  period  from  the  first
accidental  property  damage under one or more  policies for all  insureds,  the
maximum  recovery  for all losses by all  insureds  will be an aggregate of $3.2
billion  plus such  additional  amounts as the  insurer may recover for all such
losses from  reinsurance,  indemnity,  and any other source,  applicable to such
losses.
     Additionally,  through its subsidiaries,  Exelon is a member of an industry
mutual insurance  company that provides  replacement power cost insurance in the
event of a major accidental  outage at a nuclear  station.  The premium for this
coverage is subject to assessment for adverse loss experience.  Exelon's maximum
share of any  assessment is $46 million per year.  Recovery under this insurance
for terrorist acts is subject to the $3.2 billion  aggregate limit and secondary
to the property insurance described above.
     In addition,  Exelon  participates in the American  Nuclear Insurers Master
Worker Program,  which provides coverage for worker tort claims filed for bodily
injury caused by a nuclear energy accident. This program was modified, effective
January 1, 1998,  to provide  coverage  to all  workers  whose  "nuclear-related
employment"  began on or after  the  commencement  date of  reactor  operations.
Exelon will not be liable for a retrospective  assessment under this new policy.
However,  in the event losses incurred under the small number of policies in the
old program exceed accumulated reserves, a maximum retroactive  assessment of up
to $50 million could apply.
     Exelon is  self-insured to the extent that any losses may exceed the amount
of insurance  maintained.  Such losses could have a material  adverse  effect on
Exelon's financial condition and results of operations.

Energy Commitments
Exelon's  wholesale  operations  include the physical  delivery and marketing of
power  obtained  through its generation  capacity,  and long,  intermediate  and
short-term  contracts.  Exelon  maintains  a net  positive  supply of energy and
capacity,  through  ownership of generation  assets and power purchase and lease
agreements,  to protect it from the potential  operational failure of one of its
owned or contracted  power  generating  units.  Exelon has also  contracted  for
access to additional  generation  through  bilateral  long-term  power  purchase
agreements. These agreements are firm commitments related to power generation of
specific  generation plants and/or are dispatchable in nature - similar to asset
ownership.  Exelon enters into power purchase  agreements  with the objective of
obtaining   low-cost  energy  supply  sources  to  meet  its  physical  delivery
obligations to its customers. Exelon has also purchased firm transmission rights
to ensure that it has  reliable  transmission  capacity to  physically  move its
power supplies to meet customer  delivery needs. The primary intent and business
objective for the use of its capital  assets and contracts is to provide  Exelon
with  physical  power  supply to enable it to  deliver  energy to meet  customer
needs.  Exelon  primarily  uses financial  contracts in its wholesale  marketing
activities for hedging purposes.  Exelon also uses financial contracts to manage
the risk surrounding trading for profit activities.
     Exelon has entered into bilateral  long-term  contractual  obligations  for
sales  of  energy  to  load-serving  entities,   including  electric  utilities,
municipalities,  electric cooperatives, and retail load aggregators. Exelon also
enters  into  contractual  obligations  to deliver  energy to  wholesale  market
participants  who primarily focus on the resale of energy products for delivery.
Exelon provides  delivery of its energy to these customers through access to its
transmission assets or rights for firm transmission.
     Generation has power purchase  arrangements (PPAs) with Midwest Generation,
LLC  (Midwest  Generation)  for the  purchase  of  capacity  from its coal fired
stations,  in declining amounts through 2004.  Contracted  capacity and capacity
available  through  the  exercise  of  an  annual  option  are  as  follows  (in
megawatts):



                                                                        Contracted          Available Option
                                                                           Capacity                 Capacity
- ------------------------------------------------------------------------------------------------------------
                                                                                                 
2002                                                                          4,013                    1,632
2003                                                                          1,696                    3,949
2004                                                                          1,696                    3,949
- ------------------------------------------------------------------------------------------------------------


                                       34


The agreements  also provide for the option to purchase  2,698  megawatts of oil
and  gas-fired  capacity,  and 944  megawatts  of peaking  capacity,  subject to
reduction.
     Generation has entered into PPAs with AmerGen, under which it will purchase
all the energy from Unit No. 1 at Three Mile Island Nuclear  Station (TMI) after
December 31, 2001 through December 31, 2014.  Under a 1999 PPA,  Generation will
purchase from AmerGen all of the residual  energy from the Clinton Nuclear Power
Station  (Clinton),  through December 31, 2002.  Currently,  the residual output
approximates 25% of the total output of the Clinton.
     At December 31, 2001,  Exelon had  long-term  commitments,  relating to the
purchase and sale of energy,  capacity and transmission rights from unaffiliated
utilities and others, including the Midwest Generation and AmerGen contracts, as
expressed in the following tables:



                                                           Transmission
                                             Capacity            Rights       Power Only          Power Only
                                            Purchases         Purchases        Purchases               Sales
- -------------------------------------------------------------------------------------------------------------
                                                                                     
2002                                        $   1,005         $     139         $    551         $     1,803
2003                                            1,214                31              345                 666
2004                                            1,222                15              346                 219
2005                                              406                15              264                 139
2006                                              406                 5              250                  58
Thereafter                                      3,657                --            2,321                  22
- -------------------------------------------------------------------------------------------------------------
Total                                       $   7,910         $     205         $  4,077         $     2,907
=============================================================================================================



Environmental Issues
Exelon's  operations have in the past and may in the future require  substantial
capital  expenditures in order to comply with environmental laws.  Additionally,
under Federal and state environmental laws, Exelon, through its subsidiaries, is
generally  liable for the costs of remediating  environmental  contamination  of
property  now or  formerly  owned by  Exelon  and of  property  contaminated  by
hazardous substances generated by Exelon. Exelon owns or leases a number of real
estate parcels,  including  parcels on which its operations or the operations of
others may have resulted in  contamination  by substances  which are  considered
hazardous under  environmental laws. Exelon has identified 72 sites where former
manufactured gas plant (MGP) activities have or may have resulted in actual site
contamination.  Exelon is currently involved in a number of proceedings relating
to sites where  hazardous  substances  have been deposited and may be subject to
additional proceedings in the future.
     As of December 31, 2001 and 2000,  Exelon had accrued $156 million and $172
million,  respectively,  for environmental  investigation and remediation costs,
including $127 million and $140 million, respectively, for MGP investigation and
remediation,  that  currently  can  be  reasonably  estimated.  Included  in the
environmental  investigation  and remediation cost obligation as of December 31,
2001 and 2000 is $100  million  and $110  million,  respectively,  that has been
recorded  on a  discount  basis,  (reflecting  discount  rates  of  5.5%).  Such
estimates,  reflecting  the effects of a 3% inflation rate before the effects of
discounting  were $154  million and $170  million at December 31, 2001 and 2000,
respectively.  Exelon  anticipates  that  payments  related  to  the  discounted
environmental  investigation and remediation costs,  recorded on an undiscounted
basis,  of $68 million will be incurred for the five-year  period  through 2006.
Exelon  cannot  reasonably  estimate  whether  it will incur  other  significant
liabilities  for  additional  investigation  and  remediation  costs at these or
additional  sites  identified by Exelon,  environmental  agencies or others,  or
whether such costs will be recoverable from third parties.

                                       35


Leases
Minimum  future  operating  lease  payments,  including  lease payments for real
estate, computers, rail cars and office equipment, as of December 31, 2001 were:



- -----------------------------------------------------------------------------------------------------------
                                                                                                 
2002                                                                                                $   82
2003                                                                                                    84
2004                                                                                                    68
2005                                                                                                    67
2006                                                                                                    61
Remaining years                                                                                        628
- -----------------------------------------------------------------------------------------------------------
Total minimum future lease payments                                                                 $  990
===========================================================================================================


Rental expense under operating leases totaled $75 million,  $41 million, and $54
million in 2001, 2000 and 1999, respectively.

Litigation
Chicago Franchise.  In March 1999, ComEd reached a settlement agreement with the
City of Chicago  (Chicago)to  end the arbitration  proceeding  between ComEd and
Chicago  regarding  the  January  1, 1992  franchise  agreement.  As part of the
settlement  agreement,  ComEd and  Chicago  agreed to a revised  combination  of
ongoing work under the franchise  agreement and new initiatives that will result
in  defined  transmission  and  distribution  expenditures  by ComEd to  improve
electric services in Chicago. The settlement agreement provides that ComEd would
be subject to  liquidated  damages if the projects are not  completed by various
dates,  unless it was prevented  from doing so by events  beyond its  reasonable
control.  In addition,  ComEd and Chicago  established an Energy Reliability and
Capacity  Account,  into which ComEd  deposited  $25 million  during each of the
years 1999 through 2001 and has  conditionally  agreed to deposit $25 million at
the end of 2002,  to help ensure an adequate  and reliable  electric  supply for
Chicago.

Cotter  Corporation  Litigation.  During 1989 and 1991,  actions were brought in
Federal and state courts in Colorado  against ComEd and its  subsidiary,  Cotter
Corporation (Cotter), seeking unspecified damages and injunctive relief based on
allegations that Cotter permitted radioactive and other hazardous material to be
released from its mill into areas owned or occupied by the plaintiffs, resulting
in property damage and potential adverse health effects. In 1994, a Federal jury
returned nominal dollar verdicts against Cotter on eight  plaintiffs'  claims in
the 1989 cases,  which verdicts were upheld on appeal.  The remaining  claims in
the 1989 actions were settled or dismissed. In 1998, a jury verdict was rendered
against  Cotter in favor of 14 of the  plaintiffs  in the 1991  cases,  totaling
approximately  $6 million in  compensatory  and punitive  damages,  interest and
medical  monitoring.  On appeal, the Tenth Circuit Court of Appeals reversed the
jury verdict,  and remanded the case for new trial. These plaintiffs' cases were
consolidated with the remaining 26 plaintiffs'  cases, which had not been tried.
The  consolidated  trial was  completed  on June 28, 2001.  The jury  returned a
verdict against Cotter and awarded $16.3 million in various damages. On November
20, 2001, the District Court entered an amended final judgment which included an
award of both  pre-judgment  and  post-judgment  interests,  costs,  and medical
monitoring expenses which total $43.3 million.  This matter is being appealed by
Cotter in the Tenth Circuit Court of Appeals. Cotter will vigorously contest the
award.
     In  November  2000,  another  trial  involving a separate  sub-group  of 13
plaintiffs,  seeking $19  million in damages  plus  interest  was  completed  in
federal district court in Denver. The jury awarded nominal damages of $42,500 to
11 of 13  plaintiffs,  but awarded no damages for any personal  injury or health
claims,  other than requiring Cotter to perform  periodic medical  monitoring at
minimal cost. The plaintiffs  appealed the verdict to the Tenth Circuit Court of
Appeals.

                                       36


     On February 18, 2000, ComEd sold Cotter to an unaffiliated  third party. As
part of the sale, ComEd agreed to indemnify Cotter for any liability incurred by
Cotter  as a result  of  these  actions,  as well as any  liability  arising  in
connection  with the West Lake  Landfill  discussed  in the next  paragraph.  In
connection with the corporate  restructuring,  the  responsibility  to indemnify
Cotter for any liability related to these matters was transferred to Generation.
Exelon's   management  believes  adequate  reserves  have  been  established  in
connection with these proceedings.
     The United States Environmental  Protection Agency (EPA) has advised Cotter
that it is potentially liable in connection with radiological contamination at a
site  known as the West Lake  Landfill  in  Missouri.  Cotter is alleged to have
disposed of approximately  39,000 tons of soils mixed with 8,700 tons of leached
barium sulfate at the site. Cotter,  along with three other companies identified
by the EPA as  potentially  responsible  parties  (PRPs),  is  reviewing a draft
feasibility study that recommends capping the site. The PRPs are also engaged in
discussions  with the State of  Missouri  and the EPA.  The  estimated  costs of
remediation for the site are $10 to $15 million.  Once a final feasibility study
is complete and a remedy selected, it is expected that the PRPs will agree on an
allocation  of  responsibility  for the costs.  Until an  agreement  is reached,
Exelon cannot predict its share of the costs.

FERC  Municipal  Request  for  Refund.  Three  of  ComEd's  wholesale  municipal
customers  filed a complaint  and request for refund with the FERC alleging that
ComEd  failed to properly  adjust its rates,  as provided for under the terms of
the electric service contracts with the municipal customers and to track certain
refunds made to ComEd's retail  customers in the years 1992 through 1994. In the
third  quarter of 1998,  FERC granted the complaint and directed that refunds be
made,  with interest.  ComEd filed a request for  rehearing.  On April 30, 2001,
FERC issued an order  granting  rehearing in which it  determined  that its 1998
order  had been  erroneous  and  that no  refunds  were  due  from  ComEd to the
municipal  customers.  On June 29, 2001, FERC denied the customers' requests for
rehearing of the order  granting  rehearing.  In August 2001,  each of the three
wholesale  municipal  customers  appealed  the April 30,  2001 FERC order to the
Federal  circuit  court,  which  consolidated  the appeals  for the  purposes of
briefing and decision.  In November 2001, the court suspended  briefing  pending
court-initiated settlement discussions.

Godley Park  District  Litigation.  On April 18, 2001,  the Godley Park District
filed suit in Will County  Circuit Court against ComEd and Exelon  alleging that
oil spills at Braidwood  Station have  contaminated  the Park  District's  water
supply.  The complaint  sought actual damages,  punitive damages of $100 million
and statutory penalties. The court dismissed all counts seeking punitive damages
and statutory penalties, and the plaintiff has filed an amended complaint before
the  court.  Exelon  is  contesting  the  liability  and  damages  sought by the
plaintiff.

Pennsylvania  Real  Estate  Tax  Appeals.  Exelon  is  involved  in tax  appeals
regarding two of its nuclear facilities, Limerick Generating Station (Montgomery
County) and Peach Bottom  Atomic Power  Station  (York  County),  and one of its
fossil facilities,  Eddystone (Delaware County).  Exelon is also involved in the
tax appeal for TMI (Dauphin County) through AmerGen. Exelon does not believe the
outcome of these matters will have a material adverse effect on Exelon's results
of operations or financial condition.

Retail  Rate  Law.  In  1996,  several  developers  of  non-utility   generating
facilities filed litigation against various Illinois officials claiming that the
enforcement  against  those  facilities of an amendment to Illinois law removing
the entitlement of those facilities to state-subsidized payments for electricity
sold to ComEd after March 15, 1996  violated  their rights under the Federal and
state  constitutions.  The  developers  also  filed  suit  against  ComEd  for a
declaratory  judgement  that their rights under their  contracts with ComEd were
not affected by the amendment.  On August 4, 1999, the Illinois  Appellate Court
held that the  developers'  claims  against  the state were  premature,  and the
Illinois  Supreme  Court denied leave to appeal that ruling.  Developers of both
facilities have since filed amended complaints  repeating their allegations that
ComEd breached the contracts in question and requesting damages for such breach,
in the amount of the difference between the state-subsidized rate and the amount
ComEd was willing to pay for the electricity. ComEd is contesting this matter.

                                       37


Service  Interruptions.  In August 1999,  three class action lawsuits were filed
against  ComEd,  and  subsequently  consolidated,  in the Circuit  Court of Cook
County,  Illinois  seeking  damages for personal  injuries,  property damage and
economic  losses related to a series of service  interruptions  that occurred in
the summer of 1999. The combined effect of these interruptions  resulted in over
168,000  customers  losing service for more than four hours.  Conditional  class
certification  was  approved  by the court  for the sole  purpose  of  exploring
settlement talks.  ComEd filed a motion to dismiss the complaints.  On April 24,
2001, the court dismissed four of the five counts of the consolidated  complaint
without prejudice and the sole remaining count was dismissed in part. On June 1,
2001, the plaintiffs filed a second amended consolidated complaint and ComEd has
filed an  answer.  A portion  of any  settlement  or  verdict  may be covered by
insurance;  discussions  with  the  carrier  are  ongoing.  Exelon's  management
believes adequate reserves have been established in connection with these cases.

Enron.  Exelon is an  unsecured  creditor in Enron  Corp.'s  (Enron)  bankruptcy
proceeding.  Exelon's  claim  for  power  and  other  products  sold to Enron in
November and early  December 2001 is $8.5 million.  Enron may assert that Exelon
should not have  closed out and  terminated  all of its forward  contracts  with
Enron.  If Enron is  successful in this  argument,  Exelon's  exposure  could be
greater  than $8.5  million.  Exelon may also be subject to exposure  due to the
credit  policies of ISO-operated  spot markets that allocate  defaults of market
participants to non-defaulting participants. Exelon has established reserves for
these matters.
     As a result of Enron's  bankruptcy,  ComEd has potential  monetary exposure
for customers  served by Enron Energy Services (EES),  either as a billing agent
or a third party supplier.  EES is the billing agent for 366 of ComEd's customer
accounts.  On January 7, 2002,  EES was  authorized by the  bankruptcy  court to
reject its contracts for 129 of these  accounts.  EES advised  Exelon on January
10,  2002,  that it will move to reject its  contracts  with the  remaining  237
accounts  during the week of January 14, 2002.  Exelon is working to ensure that
customers know what amounts are owed to ComEd, and is obtaining  updated billing
addresses for these accounts. As of January 8, 2002,  approximately $3.5 million
in payments to Exelon were overdue and an additional  $1.8 million in charges is
currently payable but not overdue. Therefore,  Exelon's total amount outstanding
with respect to the EES accounts is  approximately  $5.3  million.  Because that
amount is owed to Exelon by individual customers, it is not part of the bankrupt
Enron's estate.

General.  Exelon is involved in various other litigation  matters.  The ultimate
outcome  of  such  matters,  as  well  as the  matters  discussed  above,  while
uncertain,  are not expected to have a material adverse effect on its respective
financial condition or results of operations.

                                       38


21.  Segment Information

Exelon  evaluates the  performance  of its business  segments  based on Earnings
Before Interest Expense and Income Taxes (EBIT).

     Energy  Delivery  consists  of  the  retail  electricity  distribution  and
transmission  businesses of ComEd in northern  Illinois and PECO in southeastern
Pennsylvania  and the natural gas  distribution  business of PECO located in the
Pennsylvania counties surrounding the City of Philadelphia.  Generation consists
of electric  generating  facilities,  energy  marketing  operations and Exelon's
interests  in Sithe and  AmerGen.  Enterprises  consists of  competitive  retail
energy  sales,  energy and  infrastructure  services,  communications  and other
investments  weighted  towards the  communications,  energy  services and retail
services industries. An analysis and reconciliation of Exelon's business segment
information  to  the  respective   information  in  the  consolidated  financial
statements are as follows:



                             Energy                                                      Intersegment
                           Delivery       Generation     Enterprises      Corporate      Eliminations    Consolidated
- ---------------------------------------------------------------------------------------------------------------------
                                                                                         
Total Revenues:
2001                      $  10,171        $   7,048       $   2,292      $     341         $ (4,712)      $  15,140
2000                          4,511            3,316           1,395             --           (1,723)          7,499
1999                          3,265            2,411             644             --             (842)          5,478
Intersegment Revenues:
2001                      $      94        $   4,102       $     179      $     337         $ (4,712)      $      --
2000                             24            1,227             472             --           (1,723)             --
1999                             --              842              --             --             (842)             --
EBIT (a):
2001                      $   2,623        $     962       $    (107)     $     (22)        $     --       $   3,456
2000 (b)                      1,503              440            (140)          (328)              --           1,475
1999                          1,372              379            (212)          (194)              --           1,345
Depreciation and
 Amortization:
2001                      $   1,081        $     282       $      69      $      17         $     --       $   1,449
2000                            297              126              35             --               --             458
1999                            108              125               4             --               --             237
Capital Expenditures:
2001                      $   1,133        $     803       $      70      $      35         $     --       $   2,041
2000                            367              288              70             27               --             752
1999                            205              245               1             40               --             491
Total Assets:
2001                      $  26,448        $   7,588       $   1,699      $    (914)        $     --       $  34,821
2000                         27,613            5,734           2,277           (838)              --          34,786
1999                         10,306            1,734             640            407               --          13,087
- ---------------------------------------------------------------------------------------------------------------------
<FN>
(a)  EBIT consists of operating income, equity in earnings (losses) of unconsolidated affiliates, and other income and
     expenses  recorded in other, net with the exception of investment  income.  Investment  income for 2001, 2000 and
     1999 was $47 million, $64 million and $52 million, respectively.
(b)  Includes non-recurring items of $276 million for Merger-related expenses in 2000.
</FN>


Equity in losses of  communications  joint ventures and other investments of $19
million, $45 million and $38 million for 2001, 2000 and 1999, respectively,  are
included in the Enterprises business unit's EBIT and equity losses of affordable
housing  investments  of $9 million for 2001 are included in  Corporate's  EBIT.
Equity in  earnings  of AmerGen and Sithe of $90 million and $4 million for 2001
and 2000, respectively, are included in the Generation business unit's EBIT.

                                       39


22.  Related Party Transactions

In August 2001,  Exelon loaned Sithe, an equity method investment of Generation,
$150 million.  The note, which bore interest at the eurodollar rate, plus 2.25%,
was repaid in December 2001 with the proceeds of bank borrowings.  In connection
with the bank  borrowing,  Exelon  provided  the lenders  with a support  letter
confirming its investment in Sithe and Exelon's agreement to maintain a positive
net worth of Sithe. Exelon recorded $2 million of interest income on the note in
2001.
     Generation  has entered into PPAs dated  December 18, 2001 and November 22,
1999 with  AmerGen.  Under the 2001 PPA,  Exelon  has  agreed to  purchase  from
AmerGen all the energy from TMI after  December  31, 2001  through  December 31,
2014. Under the 1999 PPA,  Generation has agreed to purchase from AmerGen all of
the residual  energy from Clinton,  through  December 31, 2002.  Currently,  the
residual output  approximates 25% of the total output of Clinton.  For the years
ended December 31, 2001, 2000 and 1999 the amount of purchased power recorded in
Fuel and  Purchased  Power  in the  Consolidated  Statements  of  Income  is $57
million,  $52 million and $0 million  respectively.  As of December 31, 2001 and
2000 Generation had a payable of $3 million resulting from this PPA .
     In  addition,  under a service  agreement  dated March 1, 1999,  Generation
provides  AmerGen with  certain  operation  and support  services to the nuclear
facilities owned by AmerGen.  This service  agreement has an indefinite term and
may be terminated by Generation or by AmerGen on 90 days' notice.  Generation is
compensated  for these services in an amount agreed to in the work order but not
less than the  higher of  Exelon's  fully  allocated  costs for  performing  the
services or the market price.  For the years ended  December 31, 2001,  2000 and
1999 the amount  charged to AmerGen  for these  services  was $80  million,  $32
million  and  $1  million  respectively.  As of  December  31,  2001  and  2000,
Generation  had a  receivable  of $47  million  and  $20  million  respectively,
resulting from these services.

23.  Change in Accounting Estimate

Effective April 1, 2001, Exelon changed its accounting  estimates related to the
depreciation and decommissioning of certain generating  stations.  The estimated
service lives were extended by 20 years for three nuclear  stations,  by periods
of up to 20 years  for  certain  fossil  stations  and by 50 years  for a pumped
storage  station.  Effective  July 1, 2001,  the  estimated  service  lives were
extended by 20 years for the remainder of Exelon's  operating  nuclear stations.
These  changes  were  based on  engineering  and  economic  feasibility  studies
performed  by  Exelon  considering,  among  other  things,  future  capital  and
maintenance  expenditures at these plants. As a result of the change, net income
for 2001 increased $90 million ($54 million, net of income taxes). At the end of
the year,  annualized  savings  resulting  from the change would be $132 million
($79 million, net of income taxes).

                                       40


24.  Quarterly Data (Unaudited)

The data shown below include all adjustments  which Exelon  considers  necessary
for a fair presentation of such amounts:



                                                                     Income (Loss) Before
                                                                      Extraordinary Items
                                                                           and Cumulative
                                                                    Effect of a Change in
                        Operating Revenues      Operating Income     Accounting Principle    Net Income (Loss)
                        --------------------------------------------------------------------------------------
                             2001      2000     2001    2000 (a)           2001      2000      2001      2000
- --------------------------------------------------------------------------------------------------------------
                                                                                
Quarter ended:
March 31                   $3,823    $1,353     $889    $352              $387      $167      $399      $191
June 30                     3,651     1,385      792     309               315       119       315       116
September 30
    As initially reported   4,285     1,629      912     446               403       233       403       232
    As amended (b)          4,285     1,629      912     446               376       233       376       232
December 31(c)              3,381     3,132      769     420               338        47       338        47


                                                            Earnings per Share Before
                                                                  Extraordinary Items
                                        Average Shares          and Cumulative Effect
                                           Outstanding                 of a Change in    Earnings per Share
                                         (in millions)           Accounting Principle            Net Income
                        ------------------------------------------------------------------------------------
                                       2001       2000           2001            2000       2001       2000
- ------------------------------------------------------------------------------------------------------------
                                                                                    
Quarter ended:
March 31                                320        181          $1.21           $0.92      $1.25      $1.05
June 30                                 321        174           0.98            0.69       0.98       0.67
September 30
    As initially reported               321        170           1.26            1.37       1.26       1.37
    As amended (b)                      321        170           1.17            1.37       1.17       1.37
December 31 (c)                         320        283           1.06            0.17       1.06       0.17
<FN>
(a)  Reflects a $276 million charge ($177 million,  net of income taxes) for merger-related costs consisting
     of $152 million of direct  incremental  costs and $124 million for employee costs.  Incremental  merger
     expenses of $11 million, $9 million, $13 million and $13 million for each of the four quarters in 2000,
     respectively, were reflected in Operating and Maintenance Expense.
(b)  Reflects the effects of the quarter ended  September  30, 2001  restatement.  In January  2002,  Exelon
     discovered that its September 30, 2001 financial  statements  required a restatement for additional net
     realized and unrealized losses on investments of Generation's nuclear  decommissioning trust funds that
     were incurred prior to September 30, 2001 but not recorded.
(c)  Reflects the effects of the Unicom merger (October 20, 2000).
</FN>


                                       41


25.  Subsequent Events

On February 1, 2002,  ComEd called $200 million of its First  Mortgage  Bonds at
the redemption price of 103.84% of the principal  amount,  plus accrued interest
to the March 21, 2002 redemption date. The bonds, which carried an interest rate
of 8.625% and had a  maturity  date of  February  1, 2022,  are  expected  to be
refinanced with long-term debt.
     On  March 1,  2002,  Enterprises  announced  an  agreement  to sell its 49%
interest in AT&T Wireless PCS of Philadelphia, LLC for $285 million in cash. The
transaction is expected to close in the first half of 2002.  Enterprises expects
to record a pre-tax gain of approximately $200 million on the sale ($120 million
after income  taxes)  resulting in an increase in diluted  earnings per share in
2002 of $0.37.  Proceeds from the transaction  will be used for Exelon's general
corporate purposes.

                                       42