Exhibit 99-4

Exelon   Corporation   and  Subsidiary   Companies   Financial   Statements  and
Supplementary Data

Report of Independent Accountants

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, 2002 and December 31, 2001, and the results of their operations and
their cash flows for each of the three years in the period  ended  December  31,
2002 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 4 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.

As discussed in Note 4 to the consolidated financial statements,  Exelon changed
its method of accounting for goodwill effective January 1, 2002.

Chicago, Illinois

January 29, 2003, except for Note 23 for which the date is February 20, 2003.


                                       74





Exelon Corporation and Subsidiary Companies
Consolidated Statements of Income
                                                                                   For the Years Ended December 31,
                                                                   ------------------------------------------------
in millions, except per share data                                   2002                  2001                2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                               
Operating Revenues                                             $   14,955            $   14,918         $     7,499
Operating Expenses
  Purchased Power                                                   3,262                 3,156               1,620
  Purchased Power from Unconsolidated Affiliate                       273                    57                  52
  Fuel                                                              1,727                 1,877                 934
  Operating and Maintenance                                         4,345                 4,394               2,310
  Merger-Related Costs                                                 --                    --                 276
  Depreciation and Amortization                                     1,340                 1,449                 458
  Taxes Other Than Income                                             709                   623                 322
- -------------------------------------------------------------------------------------------------------------------
Total Operating Expenses                                           11,656                11,556               5,972
- -------------------------------------------------------------------------------------------------------------------
Operating Income                                                    3,299                 3,362               1,527
- -------------------------------------------------------------------------------------------------------------------
Other Income and Deductions
  Interest Expense, net of amounts capitalized                       (966)               (1,107)               (614)
  Distributions on Preferred Securities of Subsidiaries               (45)                  (49)                (24)
  Equity in Earnings (Losses) of Unconsolidated Affiliates, net        80                    62                 (41)
  Other, Net                                                          300                    79                  53
- -------------------------------------------------------------------------------------------------------------------
   Total Other Income and Deductions                                 (631)               (1,015)               (626)
- -------------------------------------------------------------------------------------------------------------------
Income Before Income Taxes and the
    Cumulative Effect of Changes in Accounting Principles           2,668                 2,347                 901
Income Taxes                                                          998                   931                 339
- -------------------------------------------------------------------------------------------------------------------
Income Before Cumulative Effect
  of Changes in Accounting Principles                               1,670                 1,416                 562
Cumulative  Effect of Changes in Accounting  Principles  (net of income taxes of
  $(90), $8 and $16 in 2002, 2001 and 2000,
  respectively)                                                      (230)                   12                  24
- -------------------------------------------------------------------------------------------------------------------
Net Income                                                       $  1,440            $    1,428         $       586
- -------------------------------------------------------------------------------------------------------------------
Average Shares of Common Stock Outstanding
    Basic                                                             322                   320                 202
    Diluted                                                           325                   322                 204
- -------------------------------------------------------------------------------------------------------------------
Earnings Per Common Share - Basic:
    Income Before Cumulative
      Effect of Changes in Accounting Principles                 $   5.18            $     4.42         $      2.79
    Cumulative Effect of Changes in Accounting Principles           (0.71)                 0.04                0.12
- -------------------------------------------------------------------------------------------------------------------
    Net Income                                                   $   4.47            $     4.46         $      2.91
- -------------------------------------------------------------------------------------------------------------------
Earnings Per Common Share - Diluted:
    Income Before Cumulative
      Effect of Changes in Accounting Principles                 $   5.15            $     4.39         $      2.75
    Cumulative Effect of Changes in Accounting Principles           (0.71)                 0.04                0.12
- -------------------------------------------------------------------------------------------------------------------
    Net Income                                                   $   4.44            $     4.43         $      2.87
- -------------------------------------------------------------------------------------------------------------------
Dividends Per Common Share                                       $   1.76            $     1.82         $      0.91
- -------------------------------------------------------------------------------------------------------------------


                 See Notes to Consolidated Financial Statements



                                       75





Exelon Corporation and Subsidiary Companies
Consolidated Statements of Cash Flows                                              For the Years Ended December 31,
                                                                        -------------------------------------------
in millions                                                               2002                2001             2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                 
Cash Flows from Operating Activities
  Net Income                                                          $  1,440         $     1,428        $     586
  Adjustments to reconcile Net Income to Net
   Cash Flows provided by Operating Activities:
    Depreciation and Amortization, including nuclear fuel                1,701               1,834              607
    Cumulative Effects of Changes in Accounting
     Principles (net of income taxes)                                      230                 (12)             (24)
    Provision for Uncollectible Accounts                                   129                 145               89
    Net Gain on Sale of Investments                                       (199)                 --               --
    Deferred Income Taxes                                                  278                 (68)             193
    Merger-Related Costs                                                    --                  --              276
    Employee Severance Costs                                                --                  46               --
    Deferred Energy Costs                                                   25                  29              (79)
    Equity in (Earnings) Losses of Unconsolidated Affiliates, net          (80)                (62)              41
    Write-down of Investments                                               41                  36               --
    Net Realized Losses on Nuclear
     Decommissioning Trust Funds                                            32                 127               --
    Other Operating Activities                                              12                 (16)            (165)
    Changes in Working Capital:
     Accounts Receivable                                                  (448)                318             (445)
     Repurchase of Accounts Receivable                                      --                  --              (50)
     Inventories                                                           (37)                (33)              49
     Accounts Payable, Accrued Expenses & Other Current Liabilities        470                (190)              (2)
     Other Current Assets                                                   20                  33               20
- -------------------------------------------------------------------------------------------------------------------
Net Cash Flows provided by Operating Activities                          3,614               3,615            1,096
- -------------------------------------------------------------------------------------------------------------------
Cash Flows from Investing Activities
   Capital Expenditures                                                 (2,150)             (2,088)            (752)
   Acquisitions of Generating Plants                                      (445)                --                --
   Unicom Merger Consideration                                              --                 --              (507)
   Proceeds from Direct Financing Leases                                    --                 --             1,228
   Investment in Sithe Energies, Inc.                                       --                 --              (704)
   Enterprises Acquisitions, net of cash acquired                           --                 (30)            (245)
   Proceeds from the Sale of Investments                                   287                 --                --
   Proceeds from Nuclear Decommissioning Trust Funds                     1,612               1,624              265
   Investment in Nuclear Decommissioning Trust Funds                    (1,824)             (1,863)            (380)
   Note Receivable from Unconsolidated Affiliate                           (35)                --                --
   Other Investing Activities                                               17                 (35)            (108)
- -------------------------------------------------------------------------------------------------------------------
Net Cash Flows used in Investing Activities                             (2,538)             (2,392)          (1,203)
- -------------------------------------------------------------------------------------------------------------------
Cash Flows from Financing Activities
   Issuance of Long-Term Debt                                            1,223               2,270            1,021
   Common Stock Repurchases                                                 --                 --              (501)
   Retirement of Long-Term Debt                                         (2,134)             (1,860)            (665)
   Change in Short-Term Debt                                               321              (1,013)              10
   Redemption of Preferred Securities of Subsidiaries                      (18)                (17)             (19)
   Dividends Paid on Common Stock                                         (563)               (583)            (157)
   Change in Restricted Cash                                               (24)                (58)            (140)
   Proceeds from Employee Stock Plans                                       78                  39               67
   Contribution from Minority Interest of Consolidated Subsidiary           43                 --                --
   Other Financing Activities                                              (18)                (42)             (11)
- -------------------------------------------------------------------------------------------------------------------
Net Cash Flows used in Financing Activities                             (1,092)             (1,264)            (395)
- -------------------------------------------------------------------------------------------------------------------
Decrease in Cash and Cash Equivalents                                      (16)                (41)            (502)
Cash and Cash Equivalents at beginning of period                           485                 526               54
Cash Acquired in Unicom Merger                                              --                 --               974
- -------------------------------------------------------------------------------------------------------------------
Cash and Cash Equivalents at end of period                            $    469         $       485        $     526
- -------------------------------------------------------------------------------------------------------------------
                 See Notes to Consolidated Financial Statements



                                       76





Exelon Corporation and Subsidiary Companies
Consolidated Balance Sheets
                                                                                                       December 31,
                                                                              -------------------------------------
in millions                                                                              2002                  2001
- -------------------------------------------------------------------------------------------------------------------
Assets
Current Assets
                                                                                                   
  Cash and Cash Equivalents                                                     $         469            $      485
  Restricted Cash                                                                         396                   372
  Accounts Receivable, net
   Customer                                                                             2,095                 1,687
   Other                                                                                  265                   381
   Receivable from Unconsolidated Affiliate                                                32                    44
  Inventories, at average cost
   Fossil Fuel                                                                            218                   222
   Materials and Supplies                                                                 306                   249
  Deferred Income Taxes                                                                     6                    23
  Other                                                                                   331                   272
- -------------------------------------------------------------------------------------------------------------------
   Total Current Assets                                                                 4,118                 3,735
- -------------------------------------------------------------------------------------------------------------------

Property, Plant and Equipment, net                                                     17,134                13,791

Deferred Debits and Other Assets
  Regulatory Assets                                                                     5,938                 6,423
  Nuclear Decommissioning Trust Funds                                                   3,053                 3,165
  Investments                                                                           1,393                 1,623
  Goodwill, net                                                                         4,992                 5,335
  Other                                                                                   850                   672
- -------------------------------------------------------------------------------------------------------------------
   Total Deferred Debits and Other Assets                                              16,226                17,218
- -------------------------------------------------------------------------------------------------------------------
Total Assets                                                                    $      37,478            $   34,744
- -------------------------------------------------------------------------------------------------------------------

Liabilities and Shareholders' Equity

Current Liabilities
  Notes Payable                                                                 $         681            $      360
  Note Payable to Unconsolidated Affiliate                                                534                    --
  Long-Term Debt Due Within One Year                                                    1,402                 1,406
  Accounts Payable                                                                      1,563                   964
  Accrued Expenses                                                                      1,311                 1,135
  Other                                                                                   483                   505
- -------------------------------------------------------------------------------------------------------------------
   Total Current Liabilities                                                            5,974                 4,370
- -------------------------------------------------------------------------------------------------------------------

Long-Term Debt                                                                         13,127                12,879

Deferred Credits and Other Liabilities
  Deferred Income Taxes                                                                 3,702                 4,362
  Unamortized Investment Tax Credits                                                      301                   316
  Nuclear Decommissioning Liability for Retired Plants                                  1,395                 1,353
  Pension Obligation                                                                    1,959                   334
  Non-Pension Postretirement Benefits Obligation                                          877                   847
  Spent Nuclear Fuel Obligation                                                           858                   843
  Other                                                                                   871                   694
- -------------------------------------------------------------------------------------------------------------------
Total Deferred Credits and Other Liabilities                                            9,963                 8,749
- -------------------------------------------------------------------------------------------------------------------
Commitments and Contingencies
Minority Interest of Consolidated Subsidiaries                                             77                    31
Preferred Securities of Subsidiaries                                                      595                   613
Shareholders' Equity
  Common Stock                                                                          7,059                 6,961
  Deferred Compensation                                                                    (1)                   (2)
  Retained Earnings                                                                     2,042                 1,169
  Accumulated Other Comprehensive Income (Loss)                                        (1,358)                  (26)
- -------------------------------------------------------------------------------------------------------------------
   Total Shareholders' Equity                                                           7,742                 8,102
- -------------------------------------------------------------------------------------------------------------------
Total Liabilities and Shareholders' Equity                                    $        37,478          $     34,744
- -------------------------------------------------------------------------------------------------------------------

                 See Notes to Consolidated Financial Statements




                                       77





Exelon Corporation and Subsidiary Companies
Consolidated Statements of Changes in Shareholders' Equity
                                                                                            Accumulated
                                                                                                   Other      Total
Dollars in millions,                             Common     Deferred  Retained   Treasury Comprehensive  Shareholders'
shares in thousands                    Shares     Stock  Compensation Earnings   Shares   Income (Loss)      Equity
- --------------------------------------------------------------------------------------------------------------------
                                                                                     
Balance, December 31, 1999            225,354   $ 3,577     $   (3)   $  (100) $ (1,705)      $     4      $  1,773
Net Income                                           --         --        586        --            --           586
Long-Term Incentive Plan Activity         563        75         (9)        --         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 Declared                      --         --       (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 (Loss),
     net of income taxes of $(1)                     --         --         --        --            (4)           (4)
- --------------------------------------------------------------------------------------------------------------------
Balance, December 31, 2000            319,005   $ 6,898     $   (7)   $   324 $      --       $    --      $  7,215
Net Income                                           --         --      1,428        --            --         1,428
Long-Term Incentive Plan Activity       1,864        55         --         --        --            --            55
Employee Stock Purchase Plan Issuances    138         6         --         --        --            --             6
Merger Consideration-Stock Options                    2         --         --        --            --             2
Amortization of Deferred Compensation                --          5         --        --            --             5
Common Stock Dividends Declared                      --         --       (583)       --            --          (583)
Reclassified Net Unrealized Losses on
     Marketable Securities, net of income
     taxes of $(22)                                  --         --         --        --           (23)          (23)
Other Comprehensive Income (Loss),
     net of income taxes of $(7)                     --         --         --        --            (3)           (3)
- --------------------------------------------------------------------------------------------------------------------
Balance, December 31, 2001            321,007   $ 6,961     $   (2)  $  1,169   $    --   $       (26)    $   8,102
Net Income                                           --         --      1,440        --            --         1,440
Long-Term Incentive Plan Activity       2,049        87         --         --        --            --            87
Employee Stock Purchase Plan Issuances    257        11         --         --        --            --            11
Amortization of Deferred Compensation                --          1         --        --            --             1
Common Stock Dividends Declared                      --         --       (567)       --            --          (567)
Other Comprehensive Income (Loss),
     net of income taxes of $(850)                   --         --         --        --        (1,332)       (1,332)
- --------------------------------------------------------------------------------------------------------------------
Balance, December 31, 2002            323,313   $ 7,059     $   (1)  $  2,042   $    --   $    (1,358) $      7,742
- --------------------------------------------------------------------------------------------------------------------





Exelon Corporation and Subsidiary Companies
Consolidated Statements of Comprehensive Income
                                                                                   For the Years Ended December 31,
                                                                             --------------------------------------
in millions                                                                            2002         2001       2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                   
Net Income                                                                          $  1,440   $  1,428     $   586
Other Comprehensive Income (Loss)
   Minimum Pension Liability, net of income taxes of $(597)                           (1,007)        --          --
   SFAS No. 133 Transition Adjustment, net
     of income taxes of $32                                                               --         44          --
   Cash Flow Hedge Fair Value Adjustment, net of income taxes of $(132)
     and $17, respectively                                                              (199)        22          --
   Foreign Currency Translation Adjustment,
     net of income taxes of $0                                                            --         (1)         --
   Unrealized Gain (Loss) on Marketable
     Securities, net of income taxes of $(116), $(40) and $(1), respectively            (119)       (41)         (4)
   Interest in Other Comprehensive Income (Loss) of Unconsolidated Affiliates,
     net of income taxes of $(5) and $(16), respectively                                  (7)       (27)         --
- -------------------------------------------------------------------------------------------------------------------
Total Other Comprehensive Income (Loss)                                               (1,332)        (3)         (4)
- -------------------------------------------------------------------------------------------------------------------
Total Comprehensive Income                                                          $    108   $  1,425     $   582
- -------------------------------------------------------------------------------------------------------------------


                 See Notes to Consolidated Financial Statements


                                       78


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), the former parent company
of Commonwealth Edison Company (ComEd),  and PECO Energy Company (PECO) (Merger)
(see Note 2 - Merger).  Exelon is  engaged,  through  its  subsidiaries,  in the
energy delivery,  wholesale generation and the enterprises  businesses discussed
below  (see  Note 20 -  Segment  Information).  The  Energy  Delivery  segment's
businesses  include the sale of electricity and  distribution  and  transmission
services by ComEd in northern Illinois and PECO in southeastern Pennsylvania and
the sale of natural gas and  distribution  services by PECO 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  Company,  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.
Investments  and joint  ventures  in which a 20% to 50%  interest is owned and a
significant  influence is exerted are  accounted  for under the equity method of
accounting. The proportionate interests in jointly owned electric utility plants
are  consolidated.  Investments  in which less than a 20%  interest is owned are
primarily accounted for under the cost method of accounting. Exelon owns 100% of
all significant consolidated subsidiaries, either directly or indirectly, except
for ComEd of which Exelon owns more than 99%, InfraSource Inc.  (InfraSource) of
which Exelon owns 95% and Southeast Chicago Energy Project,  LLC of which Exelon
owns 70% through Generation.  Exelon has reflected the third-party  interests in
the above majority owned  investments as minority  interests in its Consolidated
Statements of Cash Flows,  Consolidated  Balance Sheets and in Other, Net on the
Consolidated Statements of Income.  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 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).  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 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

                                       79


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.  Areas in
which significant  estimates have been made include, but are not limited to, the
accounting  for  derivatives,   nuclear   decommissioning   liabilities,   asset
impairment analyses, environmental costs and pension costs.

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 (see Note 8 - Accounts Receivable). 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.  Premiums received and paid on option contracts and swap arrangements
are amortized to revenue and expense over the life of the contracts.  Certain of
these contracts are considered  derivative  instruments and are recorded at fair
value with subsequent  changes in fair value recognized as revenues and expenses
unless  hedge  accounting  is applied.  Commodity  derivatives  used for trading
purposes  are  accounted  for  using  the  mark-to-market   method.  Under  this
methodology,  these  derivatives are adjusted to fair value,  and the unrealized
gains and losses are recognized in current period income.

Long-Term Contract Accounting
     Enterprises  recognizes  contract revenue and profits on certain  long-term
fixed-price contracts by the  percentage-of-completion  method of accounting. In
determining  the amount of revenue to recognize,  Exelon is required to estimate
the total costs and profits  expected to be recorded under the contract over its
contract term, and the recoverability of costs related to change orders. Changes
in these  estimates  could result in the recognition of differences in earnings.
At  December  31, 2002 and 2001,  Current  Assets  includes  $70 million and $77
million,   respectively,  of  Costs  and  Earnings  in  Excess  of  Billings  on
uncompleted  contracts  and  Current  Liabilities  includes  $44 million and $56
million,   respectively,  of  Billings  and  Earnings  in  Excess  of  Costs  on
uncompleted contracts.

     At December 31, 2002 and 2001, Accounts Receivable includes $49 million and
$46 million, respectively, of contract retention. This amount represents revenue
recognized on costs incurred that is not yet billable until final  completion of
the   project   and    acceptance   by   the    customer.    In   applying   the
percentage-of-completion  accounting  method,  the collection of these estimated
revenues is deemed probable.

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

                                       80


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.

Stock-Based Compensation
     Exelon uses the disclosure-only provisions of SFAS No. 123, "Accounting for
Stock-Based Compensation" (SFAS No. 123). See Note 17 - Common Stock for further
discussion  of these  plans.  The table below shows the effect on net income and
earnings  per  share  had  Exelon   elected  to  account  for  its   stock-based
compensation  plans using the fair value method under SFAS No. 123 for the years
ended December 31, 2002, 2001 and 2000:




                                                                   2002                  2001                  2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                 
Net income - as reported                                      $ 1,440               $  1,428             $     586
Deduct: Total stock-based compensation expense
    determined under fair value based method for all
    awards, net of income taxes                                    33                     26                    25
- -------------------------------------------------------------------------------------------------------------------
Pro forma net income                                          $ 1,407               $  1,402             $     561
- -------------------------------------------------------------------------------------------------------------------
Earnings per share:
    Basic - as reported                                       $  4.47               $   4.46              $   2.91
    Basic - pro forma                                         $  4.36               $   4.38              $   2.77

    Diluted - as reported                                     $  4.44               $   4.43              $   2.87
    Diluted - pro forma                                       $  4.33               $   4.35              $   2.75
- -------------------------------------------------------------------------------------------------------------------


Income Taxes
     Deferred  Federal and state income  taxes are  provided on all  significant
temporary   differences   between  book  basis  and  tax  basis  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.  Exelon estimates its income tax valuation  allowance by assessing which
deferred  tax assets are more likely than not to be recovered in the future (see
Note 14 - Income Taxes).

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
(see Note 6 - Supplemental Financial Information).

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.


                                       81


Restricted Cash
     Restricted  cash reflects  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.  If
regulatory accounting practices are not applicable,  unrealized gains and losses
on marketable  securities  held in the nuclear  decommissioning  trust funds are
reported in accumulated  other  comprehensive  income.  At December 31, 2002 and
2001, Exelon had no held-to-maturity or trading securities.

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 the carrying value and fair value. The
cost of  maintenance,  repairs and minor  replacements of property is charged to
maintenance expense as incurred.
     Upon  retirement,  the cost of regulated  property  plus removal costs less
salvage  value  is  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.

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 4 - Adoption
of New  Accounting  Pronouncements  and  Accounting  Changes for  information on
service  life  extensions  for certain  nuclear  generating  stations and Energy
Delivery's change in depreciation rates.




Asset Category                                                    2002                    2001                 2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                     
Electric-Transmission and Distribution                           3.11%                   3.97%                4.16%
Electric-Generation                                              3.65%                   3.11%                5.02%
Gas                                                              2.13%                   2.34%                2.39%
Common - Gas and Electric                                        6.40%                   6.26%                5.09%
Other Property and Equipment                                     7.88%                   9.53%                8.11%
- -------------------------------------------------------------------------------------------------------------------


     Amortization  of  regulatory  assets is provided  over the recovery  period
specified in the related  regulatory  agreement.  Goodwill  associated  with the
Merger was  amortized on a  straight-line  basis over 40 years in 2001 and 2000.
Goodwill  associated with other  acquisitions was amortized over periods from 10
to 20 years in 2001 and 2000.  Accumulated  amortization  of  goodwill  was $185
million and $35 million at December 31, 2001 and 2000,  respectively.  Effective
January 1, 2002, under SFAS No. 142 "Goodwill and Other Intangible Assets" (SFAS
No. 142),  goodwill  recorded by Exelon is no longer subject to amortization but
is subject to an annual impairment test (see Note 4 - Adoption of New Accounting
Pronouncements and Accounting Changes).
     Exelon currently recovers costs for  decommissioning its nuclear generating
stations, excluding AmerGen, through regulated rates. The amounts recovered from
customers  are  deposited  in trust

                                       82


accounts  and invested  for funding of future  costs for  operating  and retired
nuclear generating  stations.  The majority of the eventual work to decommission
Exelon's nuclear generating stations will occur after 2029.

     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.  Financial activity of the  decommissioning  trust
(e.g.,  investment  income and realized and unrealized gains and losses on trust
investments)  is  reflected in Nuclear  Decommissioning  Trust Funds in Exelon's
Consolidated  Balance  Sheets  with  a  corresponding  offset  recorded  to  the
liability in accumulated  depreciation.  Under common regulatory practices,  the
deposit of funds into the  decommissioning  trust  accounts  plus the  financial
activity   reflected  in  Nuclear   Decommissioning   Trust  Funds  in  Exelon's
Consolidated Balance Sheets will, over time, establish a corresponding liability
in  accumulated  depreciation  reflecting the cost to  decommission  the nuclear
generating  stations  previously owned by PECO.  Exelon will adopt SFAS No. 143,
"Asset  Retirement  Obligations"  (SFAS No. 143) as of January 1, 2003. See "New
Accounting  Pronouncements"  within  this note for a  discussion  as to how this
standard will change the accounting for nuclear decommissioning costs.

     Regulatory   accounting  practices  for  the  nuclear  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 11 -  Nuclear
Decommissioning and Spent Fuel Storage regarding regulatory accounting practices
for  nuclear  generating  stations  transferred  by  ComEd  to  Generation.  The
difference   between  the  current   decommissioning   cost   estimate  and  the
decommissioning  liability  recorded in accumulated  depreciation for the former
ComEd  operating  stations  is being  amortized  to  depreciation  expense  on a
straight-line  basis  over the  remaining  lives of the  stations.  The  current
decommissioning  cost estimate  (adjusted annually to reflect inflation) for the
former ComEd retired units recorded in deferred credits and other liabilities is
accreted to  depreciation  expense.  Financial  activity of the  decommissioning
trust related to Exelon's  nuclear  generating  stations no longer accounted for
under common  regulatory  practices  (e.g.,  investment  income and realized and
unrealized  gains and  losses on trust  investments)  is  reflected  in  Nuclear
Decommissioning  Trust  Funds in  Exelon's  Consolidated  Balance  Sheets with a
corresponding gain or expense recorded in Exelon's Consolidated Income Statement
or in other  comprehensive  income.  The offset to the financial activity in the
decommissioning  trust  funds is  summarized  as follows:

     o    Interest income is recorded in other income and deductions,
     o    Realized gains and losses are recorded in other income and deductions,
     o    Unrealized  gains  and  losses  are  recorded  in other  comprehensive
          income, and
     o    Trust  fund   operating   expenses  are  recorded  in  operation   and
          maintenance 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.

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 $20 million, $17
million and $2 million in 2002, 2001 and 2000, 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 that is included
in Other  Income  and  Deductions.  The rates  used for  capitalizing  AFUDC are
computed  under a method  prescribed  by  regulatory  authorities  (see Note 6 -
Supplemental Financial Information).


                                       83


Capitalized Software Costs
     Costs  incurred  during  the  application  development  stage  of  software
projects  for  software  that is  developed  or obtained  for  internal  use are
capitalized.  At December 31, 2002,  2001 and 2000,  capitalized  software costs
totaled $335 million, $240 million and $285 million,  respectively,  net of $156
million, $85 million and $53 million of 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.  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.  Changes in the fair value of the  derivative
financial instruments that do not qualify for a normal purchase and normal sales
exception 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  fluctuations  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" or "normal sales"
and are not subject to the  provisions of SFAS No. 133.  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 19 - Commitments and  Contingencies.
The remainder 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.


                                       84


     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 of 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 are amortized over the terms of such contracts.

New Accounting Pronouncements
     In 2001, the FASB issued SFAS No. 143, "Asset Retirement Obligations" (SFAS
No.  143).  SFAS  No.  143  provides  accounting   requirements  for  retirement
obligations  associated with tangible long-lived assets.  Exelon will adopt SFAS
No. 143 as of 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 Generation's  nuclear  generating  plants as well as certain
other long-lived assets.

     As it  relates to nuclear  decommissioning,  the effect of this  cumulative
adjustment will be to decrease the decommissioning liability to reflect the fair
value of the decommissioning obligation at the balance sheet date. Additionally,
SFAS  No.  143  will  require  the  recognition  of  an  asset  related  to  the
decommissioning obligation,  which will be amortized over the remaining lives of
the plants.  The net difference,  between the asset recognized and the change in
the liability to reflect fair value recorded upon adoption of SFAS No. 143, will
be recorded in earnings and  recognized  as a  cumulative  effect of a change in
accounting principle,  net of expected regulatory recovery and income taxes. The
decommissioning  liability  will then  represent  an  obligation  for the future
decommissioning  of the  plants  and,  as a result,  accretion  expense  will be
accrued on this liability until such time as the obligation is satisfied.

     Currently,  Generation records the obligation for  decommissioning  ratably
over  the  lives  of the  plants.  Based  on the  current  information  and  the
credit-adjusted  risk-free  rate,  we estimate  the  increase  in 2003  non-cash
expense  to  impact  earnings  before  the  cumulative  effect  of a  change  in
accounting  principle  for the  adoption  of SFAS No. 143 by  approximately  $24
million,  after  income  taxes.  Additionally,  the  adoption of SFAS No. 143 is
expected to result in a large, non-cash,  one-time cumulative effect of a change
in accounting  principle gain of at least $1.5 billion,  after income taxes. The
$1.5 billion gain and the $24 million charge includes our share of the impact of
the SFAS No. 143 adoption related to AmerGen's nuclear plants. These impacts are
based on our current interpretation of SFAS No. 143 and are subject to continued
refinement  based on the finalization of assumptions and  interpretation  at the
time  of  adopting   the   standard,   including   the   determination   of  the
credit-adjusted  risk-free  rate.  Under  SFAS No.  143,  the fair  value of the
nuclear  decommissioning  obligation  will continue to be adjusted on an ongoing
basis as these model input factors change.

     The final  determination  of the 2003  earnings  impact and the  cumulative
effect of adopting  SFAS No.  143, is in part a function of the credit  adjusted
risk-free  rate at the  time of the  adoption  of SFAS  No.  143.  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 that
would  have  been  recognized  as  decommissioning  expense  under  the  current
accounting,  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 is expected to result in an increase in expense.


                                       85


     In July  2002,  the  FASB  issued  SFAS  No.  146,  "Accounting  for  Costs
Associated  with Exit or  Disposal  Activities"  (SFAS No.  146).  SFAS No.  146
requires  that  the  liability  for  costs  associated  with  exit  or  disposal
activities be recognized when incurred,  rather than at the date of a commitment
to an exit or disposal plan. SFAS No. 146 is to be applied prospectively to exit
or disposal activities initiated after December 31, 2002.
     In November  2002,  the FASB  released  FASB  Interpretation  No. (FIN) 45,
"Guarantor's  Accounting and Disclosure  Requirements for Guarantees,  Including
Indirect  Guarantees  of  Indebtedness  of Others" (FIN No. 45),  providing  for
expanded  disclosures  and  recognition of a liability for the fair value of the
obligation  undertaken  by the  guarantor.  Under  FIN No.  45,  guarantors  are
required  to  disclose  the  nature  of the  guarantee,  the  maximum  amount of
potential future  payments,  the carrying amount of the liability and the nature
and  amount  of  recourse  provisions  or  available  collateral  that  would be
recoverable  by the guarantor.  Exelon has adopted the  disclosure  requirements
under FIN No.  45,  (see Note 19 -  Commitments  and  Contingencies)  which were
effective for financial  statements  for periods ended after  December 15, 2002.
The  recognition and  measurement  provisions of FIN No. 45 are effective,  on a
prospective basis, for guarantees issued or modified after December 31, 2002.

     In January  2003,  the FASB issued FIN No. 46,  "Consolidation  of Variable
Interest  Entities"  (FIN No. 46).  FIN No. 46 addresses  consolidating  certain
variable interest entities and applies immediately to variable interest entities
created  after January 31, 2003.  The impact,  if any, of adopting FIN 46 on our
consolidated  financial position,  results of operations and cash flows, has not
been fully determined.

     See Note 4 -  Adoption  of New  Accounting  Pronouncements  and  Accounting
Changes for discussion of the impact of new accounting pronouncements adopted by
Exelon.

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

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 and Exelon. Pursuant to the Merger Agreement, Unicom merged with and into
Exelon. 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.


                                       86


     The Merger was accounted for using the purchase  method of accounting.  The
total purchase price was $6,014 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 $84
million of direct  acquisition  costs. The cost in excess of net assets acquired
was $5,150  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                                     5,150
Current Liabilities                                                      (2,390)
Long-Term Debt                                                           (7,419)
Deferred Credits and Other Liabilities                                   (4,919)
Preferred Securities of Subsidiaries                                       (328)
- -------------------------------------------------------------------------------
Total Purchase Price                                                    $ 6,014
- -------------------------------------------------------------------------------

     Goodwill  associated  with the Merger  increased  by $14  million  and $262
million in 2002 and 2001,  respectively,  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 11 - Nuclear Decommissioning and Spent Fuel
Storage,  additional  employee  separation  costs, the resolution of certain tax
matters and the finalization of other purchase price allocations.

     Selected  unaudited pro forma  combined  results of operations for the year
ended December 31, 2000, assuming the Merger Transaction  occurred on January 1,
2000 are presented as follows:




(unaudited)                                                                                                    2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                       
Total revenues                                                                                            $  13,531
Pro forma net income                                                                                      $   1,003
Merger-related costs (net of income taxes of $147)                                                              220
Cumulative effect of a change in accounting principle (net of income taxes of $16)                               24
- -------------------------------------------------------------------------------------------------------------------
Pro forma net income before Merger-related costs
   and the cumulative effect of a change in accounting principle                                          $   1,247
- -------------------------------------------------------------------------------------------------------------------
Pro forma net income before Merger-related costs
   and the cumulative effect of a change in accounting principle
   per common share (diluted)                                                                             $    3.86
- -------------------------------------------------------------------------------------------------------------------


     Pro forma information  assumes the issuance of transition bonds in 2000 had
occurred at the beginning of 2000.  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.


                                       87


Merger-Related Costs
     In  association  with the Merger,  Exelon  recorded  certain  reserves  for
restructuring  costs. The reserves  associated with PECO were charged to expense
pursuant to FASB  Emerging  Issues  Task Force  (EITF)  Issue  94-3,  "Liability
Recognition for Certain Employee Termination Benefits and Other Costs to Exit an
Activity  (including  Certain  Costs  Incurred in a  Restructuring)";  while the
reserves  associated  with Unicom were  recorded as part of the  application  of
purchase  accounting and did not affect results of operations,  consistent  with
EITF Issue 95-3,  "Recognition  of  Liabilities  in  Connection  with a Purchase
Business Combination."

Merger costs charged to expense.  PECO's merger-related costs charged to expense
in 2000 were $248 million,  consisting  of $116 million for PECO employee  costs
and $132 million of direct  incremental  costs  incurred by PECO in  conjunction
with  the  merger  transaction.  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 were  expected to be  involuntarily  terminated  before
December 2002 due to integration activities of the merged companies.  Additional
employee  severance costs of $48 million,  primarily  related to PECO employees,
were charged to operating  and  maintenance  expense in 2001,  and a $10 million
reduction  in the  estimated  liability  related  to  Generation  employees  was
recorded in  operating  and  maintenance  expense in the first  quarter of 2002.
Employee costs are being paid from Exelon's pension and  postretirement  benefit
plans, except for certain benefits such as outplacement  services,  continuation
of health care  coverage and  educational  benefits.  As of December 31, 2002, a
liability of $4 million is reflected on Exelon's  consolidated balance sheet for
payment of these  benefits,  of which $1 million is reflected on PECO's  balance
sheet and $1 million is reflected on Generation's balance sheet.
     A total of 960 PECO positions were expected to be eliminated as a result of
the Merger,  274 of which  related to  generation,  230 of which related to PECO
energy  delivery and 456 of which related to enterprises  and corporate  support
areas.  As of December 31, 2002,  858 of the positions had been  eliminated,  of
which 224 related to generation, 195 related to PECO energy delivery, and 439 to
enterprises  and corporate  support.  Of the remaining  102  positions,  58 were
eliminated  as a  result  of  normal  attrition  and 44  positions  will  not be
eliminated due to changes in certain business plans.
     Additionally,  in the third quarter of 2000,  approximately  $20 million of
closing costs and $8 million of stock  compensation costs associated with Unicom
were charged to expense.

     Merger costs  included in purchase  price  allocation.  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.


                                       88


     During  2001,  Exelon  finalized  plans  for  consolidation  of  functions,
including  negotiation  of an agreement  with the  International  Brotherhood of
Electrical Workers Local 15 regarding severance benefits to union employees.  In
the third quarter of 2002,  Exelon reduced its reserve by $12 million due to the
elimination  of identified  positions  through normal  attrition,  which did not
require  payments under Exelon's merger  separation  plans,  and a determination
that certain positions would not be eliminated by the end of 2002, as originally
planned, due to a change in certain business plans. The reduction in the reserve
was  recorded as a purchase  price  adjustment  to  goodwill.  In 2001 and 2002,
Exelon recorded adjustments to the purchase price allocation as follows:




                                                                                      Adjustments
                                                                   Original    ------------------          Adjusted
                                                                   Estimate       2001       2002       Liabilities
- -------------------------------------------------------------------------------------------------------------------
                                                                                              
Employee severance payments                                       $     128   $     33    $   (10)        $     151   (a)
Other benefits                                                           21          9         (2)               28   (a)
- -------------------------------------------------------------------------------------------------------------------
Employee severance payments and other benefits                          149         42        (12)              179
Actuarially determined pension and postretirement costs                 158        (11)        --               147   (b)
- -------------------------------------------------------------------------------------------------------------------
Total Unicom employee cost                                        $     307     $   31    $   (12)        $     326
- -------------------------------------------------------------------------------------------------------------------


(a)   The  increase  is a result  of the  identification  in 2001 of  additional
      positions to be eliminated,  partially  offset by the 2002  elimination of
      identified  positions  through  normal  attrition  and  changes in certain
      business plans.
(b)   The  reduction  results from lower  estimated  pension and  postretirement
      welfare benefits reflecting revised actuarial estimates.

         The  following  table  provides a  reconciliation  of the  reserve  for
employee severance and other benefits associated with the Merger:




- -------------------------------------------------------------------------------------------------------------------
                                                                                                       
Adjusted employee severance and other benefits reserve                                                    $     179
Payments to employees in 2000                                                                                    (5)
Payments to employees in 2001                                                                                   (72)
Payments to employees in 2002                                                                                   (74)
- -------------------------------------------------------------------------------------------------------------------
Employee severance and other benefits reserve as of December 31, 2002 (1)                                 $      28
- -------------------------------------------------------------------------------------------------------------------


(1) Relates to certain benefits that are being paid after 2002.

         The  following  table  provides a  reconciliation  of the former Unicom
positions that were expected to be eliminated as a result of the Merger:




                                                                                                              Total
- -------------------------------------------------------------------------------------------------------------------
                                                                                                           
Estimate at October 20, 2000                                                                                  2,275
2001 adjustments (a)                                                                                            118
- -------------------------------------------------------------------------------------------------------------------
Total positions                                                                                               2,393
- -------------------------------------------------------------------------------------------------------------------
Employees terminated in 2000                                                                                    279
Employees terminated in 2001                                                                                    607
Employees terminated in 2002                                                                                  1,053
Normal attrition                                                                                                298
Business plan changes (b)                                                                                       156
- -------------------------------------------------------------------------------------------------------------------
Total positions                                                                                               2,393
- -------------------------------------------------------------------------------------------------------------------


(a)  The increase is a result of the  identification of additional  positions to
     be eliminated in 2001.

(b)  The reduction is due to a determination  in the third quarter of 2002, that
     certain  positions would not be eliminated by the end of 2002 as originally
     planned due to a change in certain business plans.


                                       89


3.  Acquisitions and Dispositions

Sithe New England Holdings Asset Acquisition
     On November 1, 2002,  Generation  purchased the assets of Sithe New England
Holdings,  LLC (Sithe New  England),  a subsidiary  of Sithe,  and related power
marketing   operations.   Sithe  New  England's  primary  assets  are  gas-fired
facilities  currently  under  development.  The purchase price for the Sithe New
England assets  consisted of a $534 million note to Sithe, $14 million of direct
acquisition  costs and an  adjustment  to  Generation's  investment  in Sithe to
reflect  Sithe's  sale  of  Sithe  New  England  to  Generation.   Additionally,
Generation   will  assume  various  Sithe   guarantees   related  to  an  equity
contribution  agreement  between Sithe New England and Sithe Boston  Generation,
LLC (SBG), a project  subsidiary of Sithe New England.  The equity  contribution
agreement  requires,  among  other  things,  that  Sithe New  England,  upon the
occurrence  of certain  events,  contribute  up to $38 million of equity for the
purpose of completing the construction of two generating  facilities.  SBG has a
$1.25 billion credit facility (the SBG Facility) to finance the  construction of
these two generating facilities. The $1.0 billion outstanding under the facility
at December 31, 2002 is reflected on Exelon's  Consolidated Balance Sheet. Sithe
New England owns 4,066  megawatts  (MWs) of generation  capacity,  consisting of
1,645 MWs in operation  and 2,421 MWs under  construction.  Sithe New  England's
generation facilities are located primarily in Massachusetts.
     The allocation of purchase  price to the fair value of assets  acquired and
liabilities assumed in the acquisition is as follows:

- -----------------------------------------------------------------------------
Current Assets (including $12 of cash acquired)                    $       82
Property, Plant and Equipment                                           1,889
Deferred Debits and Other Assets                                           62
Current Liabilities                                                     (159)
Deferred Credits and Other Liabilities                                  (124)
Long-Term Debt                                                        (1,036)
- -----------------------------------------------------------------------------
Total Purchase Price                                               $      714
- -----------------------------------------------------------------------------

     The SBG  Facility  provides  that if these  construction  projects  are not
completed by June 12, 2003,  the SBG Facility  lenders will have the right,  but
will  not be  required,  to,  among  other  things,  declare  all  amounts  then
outstanding  under the SBG Facility and the interest rate swap  agreements to be
due.  Generation  believes that the construction  projects will be substantially
complete by May 31, 2003,  but that all of the approvals  required under the SBG
Facility  may not be issued by that date.  Generation  is  currently  evaluating
whether  the  requirements  of the SBG  Facility  relating  to the  construction
projects can be satisfied by June 12, 2003.  In the event that the  requirements
are not expected to be satisfied by June 12, 2003,  Generation  will contact the
SBG Facility  lenders  concerning an amendment or waiver of these  provisions of
the SBG Facility.  Generation  currently  expects that  arrangements for such an
amendment or waiver, if necessary,  can be successfully  negotiated with the SBG
Facility lenders.

         See Note 19 - Commitments and Contingencies  for further  discussion of
Sithe.


                                       90


Acquisition of Generating Plants from TXU
     On April 25, 2002, Generation acquired two natural-gas and oil-fired plants
from TXU Corp.  (TXU)  for an  aggregate  purchase  price of $443  million.  The
purchase  included the  893-megawatt  Mountain Creek Steam  Electric  Station in
Dallas and the 1,441-megawatt  Handley Steam Electric Station in Fort Worth. The
transaction  included a purchased  power  agreement  for TXU to  purchase  power
during the months of May through  September  from 2002 through 2006.  During the
periods covered by the purchased power  agreement,  TXU will make fixed capacity
payments,  variable expense payments,  and will provide fuel to Exelon in return
for  exclusive  rights to the  energy and  capacity  of the  generation  plants.
Substantially  all of the purchase price has been  allocated to property,  plant
and equipment.

Sale of AT&T Wireless
     On April 1, 2002, Enterprises sold its 49% interest in AT&T Wireless PCS of
Philadelphia,  LLC to a subsidiary of AT&T Wireless Services for $285 million in
cash. Enterprises recorded an after-tax gain of $116 million in Other Income and
Deductions  on  Exelon's  Consolidated  Statements  of Income on its $84 million
investment,  which had been  reflected  in Deferred  Debits and Other  Assets on
Exelon's Consolidated Balance Sheets.

InfraSource Acquisitions
     In 2001, Exelon's infrastructure services business (InfraSource),  acquired
the assets of a utility service  contracting  company for an aggregate  purchase
price of approximately $31 million.  The acquisition was accounted for using the
purchase method of accounting.  The excess of purchase price over the fair value
of net assets acquired was $19 million.  The allocation of purchase price to the
fair value of assets acquired and  liabilities  assumed in the acquisition is as
follows:

- ------------------------------------------------------------------------------
Current Assets (including cash acquired of $1)                      $       11
Property, Plant and Equipment                                               11
Cost in excess of net assets acquired                                       19
Current Liabilities                                                        (10)
- ------------------------------------------------------------------------------
Total                                                               $       31
- ------------------------------------------------------------------------------

AmerGen Energy Company, LLC
     In August 2000,  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.  Adoption of New Accounting Pronouncements and Accounting Changes

SFAS No. 141 and SFAS No. 142


                                       91


     In 2001, FASB issued SFAS No. 141, "Business  Combinations" (SFAS No. 141),
which  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
became  effective for business  combinations  initiated  after June 30, 2001. In
addition,  SFAS No. 141 required that unamortized  negative  goodwill related to
pre-July 1, 2001  purchases be recognized  as a change in  accounting  principle
concurrent  with the adoption of SFAS No. 142,  "Goodwill  and Other  Intangible
Assets" (SFAS No. 142). At December 31, 2001, AmerGen, an equity-method investee
of  Generation,  had  $43  million  of  negative  goodwill,  net of  accumulated
amortization, recorded on its balance sheet. Upon AmerGen's adoption of SFAS No.
141 in January 2002,  Generation recognized its proportionate share of income of
$22 million  ($13  million,  net of income  taxes) as a  cumulative  effect of a
change in accounting principle.
     Exelon adopted SFAS No. 142 as of January 1, 2002. SFAS No. 142 establishes
new accounting and reporting standards for goodwill and intangible assets. Other
than goodwill, Exelon does not have significant other intangible assets recorded
on its consolidated  balance sheets.  Under SFAS No. 142,  goodwill is no longer
subject to  amortization;  however,  goodwill  is subject to an  assessment  for
impairment  using a  two-step  fair  value  based  test.  The first step must be
performed  at least  annually,  or more  frequently  if events or  circumstances
indicate  that  goodwill  might be  impaired  and  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 is reported as a reduction to goodwill and a
charge to operating  expense,  except at the transition  date,  when the loss is
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 recorded on ComEd's
Consolidated  Balance Sheets,  with the remainder  related to  Enterprises.  The
first  step of the  transitional  impairment  analysis  indicated  that  ComEd's
goodwill  was not  impaired  but that an  impairment  did exist with  respect to
goodwill  recorded in  Enterprises'  reporting  units.  InfraSource,  the energy
services  business  (Exelon  Services) and the  competitive  retail energy sales
business  (Exelon  Energy)  were  determined  to be  those  reporting  units  of
Enterprises  that  had  goodwill  allocated  to  them.  The  second  step of the
analysis, which compared the fair value of each of Enterprises' reporting units'
goodwill to the carrying value at December 31, 2001,  indicated a total goodwill
impairment  of $357  million  ($243  million,  net of income  taxes and minority
interest).  The fair value of the  Enterprises'  reporting  units was determined
using  discounted cash flow models  reflecting the expected range of future cash
flow outcomes  related to each of the Enterprises  reporting units over the life
of  the   investment.   These  cash  flows  were  discounted  to  2002  using  a
risk-adjusted  discount rate. The impairment was recorded as a cumulative effect
of a change in accounting principle in the first quarter of 2002.

     The changes in the carrying  amount of goodwill by reportable  segment (see
Note 20 - Segment  Information)  for the year  ended  December  31,  2002 are as
follows:



                                                                     Energy
                                                                   Delivery           Enterprises             Total
- -------------------------------------------------------------------------------------------------------------------
                                                                                            
Balance as of January 1, 2002                                     $   4,902             $     433       $     5,335
Impairment losses                                                        --                  (357)             (357)
Resolution of certain tax matters                                        21                    --                21
Merger severance adjustment                                              (7)                   --                (7)
- -------------------------------------------------------------------------------------------------------------------
Balance as of December 31, 2002                                   $   4,916              $     76       $     4,992
- -------------------------------------------------------------------------------------------------------------------


     The December 31, 2002,  Energy Delivery  goodwill  relates to ComEd and the
remaining  Enterprises  goodwill  relates to the InfraSource and Exelon Services
reporting  units.  Consistent with

                                       92


SFAS No. 142,  the  remaining  goodwill  will be reviewed for  impairment  on an
annual basis, or more frequently if significant events occur that could indicate
an impairment  exists.  ComEd and Enterprises  performed an impairment review in
the fourth quarter of 2002. Such review was consistent with the review conducted
related to the  implementation  of SFAS No. 142,  which  required  estimates  of
numerous  items with varying  degrees of  uncertainty,  such as discount  rates,
terminal value earnings  multiples,  future revenue levels and estimated  future
expenditure levels for ComEd and Enterprises;  load growth and the resolution of
future rate proceedings for ComEd; and customer base and construction  back logs
for Enterprises. These valuations determined the Step I calculated fair value of
both ComEd and the  Enterprises'  units to be in excess of their respective book
values at November 1, 2002. Significant changes from the assumptions used in the
impairment  review could possibly result in a future  impairment loss.  Illinois
legislation  provides that  reductions to ComEd's  common equity  resulting from
goodwill  impairments  will not impact ComEd's  earnings  through 2006 under the
earnings  provisions  of the  legislation.  See Note 5 -  Regulatory  Issues for
further discussion of ComEd's earnings provisions.
     The components of the net  transitional  impairment  loss recognized in the
first quarter of 2002 as a cumulative effect of a change in accounting principle
are as follows:




- -------------------------------------------------------------------------------------------------------------------
                                                                                                 
Enterprises goodwill impairment (net of income taxes of $103)                                       $          (254)
Minority interest (net of income taxes of $4)                                                                    11
Elimination of AmerGen negative goodwill (net of income taxes of $9)                                             13
- -------------------------------------------------------------------------------------------------------------------
Total cumulative effect of a change in accounting principle                                         $          (230)
- -------------------------------------------------------------------------------------------------------------------


     The following  tables set forth Exelon's net income and earnings per common
share for 2002,  2001,  and 2000 adjusted to exclude 2001 and 2000  amortization
expense related to goodwill that is no longer being amortized.



                                                                                    2002         2001          2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                 
Reported income before cumulative effect
    of changes in accounting principles                                         $  1,670     $  1,416     $     562
Cumulative effect of changes in accounting principles                               (230)          12            24
- -------------------------------------------------------------------------------------------------------------------
Reported net income                                                                1,440        1,428           586
Goodwill amortization                                                                 --          155            34
- -------------------------------------------------------------------------------------------------------------------
Adjusted net income                                                             $  1,440     $  1,583     $     620
- -------------------------------------------------------------------------------------------------------------------

Basic earnings per common share:
Reported income before cumulative effect
    of changes in accounting principles                                         $   5.18     $   4.42     $    2.79
Cumulative effect of changes in accounting principles                              (0.71)        0.04          0.12
- -------------------------------------------------------------------------------------------------------------------
Reported net income                                                                 4.47         4.46          2.91
Goodwill amortization                                                                 --         0.48          0.17
- -------------------------------------------------------------------------------------------------------------------
Adjusted net income                                                             $   4.47     $   4.94     $    3.08
- -------------------------------------------------------------------------------------------------------------------

Diluted earnings per common share:
Reported income before cumulative effect
    of changes in accounting principles                                         $   5.15     $   4.39     $    2.75
Cumulative effect of changes in accounting principles                              (0.71)        0.04          0.12
- -------------------------------------------------------------------------------------------------------------------
Reported net income                                                                 4.44         4.43          2.87
Goodwill amortization                                                                 --         0.48          0.17
- -------------------------------------------------------------------------------------------------------------------
Adjusted net income                                                             $   4.44     $   4.91     $    3.04
- -------------------------------------------------------------------------------------------------------------------


                                       93


     The  cessation  of the  amortization  of  negative  goodwill  of AmerGen on
January 1, 2002 did not have a material  impact on Exelon's  reported net income
for 2002.

EITF Issue 02-3
     In the third quarter of 2002,  Exelon and Generation  adopted the provision
of EITF Issue 02-3,  "Accounting  for Contracts  Involved in Energy  Trading and
Risk  Management  Activities"  (EITF 02-3)  issued by the FASB EITF in June 2002
that requires  revenues and energy costs related to energy trading  contracts to
be  presented  on a net basis in the income  statement.  Prior to the  adoption,
revenues from trading  activity  were  presented in Revenue and the energy costs
related to energy  trading  were  presented  as either  Purchased  Power or Fuel
expense on Exelon  and  Generation's  Consolidated  Statements  of  Income.  For
comparative  purposes,   energy  costs  related  to  energy  trading  have  been
reclassified  in  prior  periods  to  revenue  to  conform  to the net  basis of
presentation required by EITF 02-3. Exelon commenced trading activities in April
2001,  as such $207 million of purchased  power  expense and $15 million of fuel
expense,  respectively, was reclassified and reflected as a reduction to revenue
for the year ended December 31, 2001.

SFAS No. 144
     In  September  2001,  the FASB  issued SFAS No.  144,  "Accounting  for the
Impairment or Disposal of Long-Lived Assets" (SFAS No. 144). Exelon adopted SFAS
No. 144 on January 1, 2002.  SFAS No. 144  establishes  accounting and reporting
standards for both the  impairment and disposal of long-lived  assets.  SFAS No.
144 is effective  for fiscal  years  beginning  after  December 15, 2001 and its
provisions are generally applied prospectively. The adoption of SFAS No. 144 had
no effect on Exelon's reported financial position, results of operations or cash
flows.

SFAS No. 145
     In April 2002, the FASB issued SFAS No. 145, "Rescission of FASB Statements
No. 4, 44 and 64, Amendment of FASB Statement No. 13, and Technical Corrections"
(SFAS No. 145). SFAS No. 145 eliminates  SFAS No. 4 "Reporting  Gains and Losses
from  Extinguishment  of Debt" and thus allows for only those gains or losses on
the  extinguishment of debt that meet the criteria of extraordinary  items to be
treated as such in the financial statements.  SFAS No. 145 also amends Statement
of Financial  Accounting  Standards No. 13,  "Accounting  for Leases" to require
sale-leaseback  accounting  for certain lease  modifications  that have economic
effects that are similar to  sale-leaseback  transactions.  The adoption of SFAS
No.  145  required  a  reclassification  of the  2000  extraordinary  item of $4
million, net of income taxes, to interest expense;  otherwise,  it had no effect
on Exelon's reported financial position or cash flows.

SFAS No. 133
     SFAS No. 133 applies to all derivative  instruments  and requires that such
instruments  be recorded on 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. On January 1, 2001, Exelon adopted SFAS No. 133.
Generation  recognized a non-cash gain of $12 million,  net of income taxes,  in
earnings and deferred a non-cash  gain of $4 million,  net of income  taxes,  in
accumulated other comprehensive  income and PECO deferred a non-cash gain of $40
million, net of income taxes, in accumulated other comprehensive income.

Nuclear Outage Costs
    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

                                       94


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.


SFAS No. 148
     In December 2002, the FASB issued SFAS No. 148, "Accounting for Stock-Based
Compensation  - Transition  and  Disclosure - an amendment of FASB Statement No.
123" (SFAS No. 148). SFAS No. 148 provides alternative methods of transition for
a voluntary  change to the fair value based method of accounting for stock-based
employee  compensation  and  requires  disclosures  in both  annual and  interim
financial   statements  regarding  the  method  of  accounting  for  stock-based
compensation and the effect of the method on financial results.  SFAS No. 148 is
effective for financial  statements  for fiscal years ending after  December 15,
2002.  As of December 31,  2002,  Exelon has adopted the  additional  disclosure
requirements of SFAS No. 148 and continues to account for its stock-compensation
plans under the disclosure only provision of SFAS No. 123.

Changes in Accounting Estimates
     Effective July 1, 2002, ComEd decreased its  depreciation  rates based on a
new depreciation study reflecting its significant construction program in recent
years, changes in and development of new technologies,  and changes in estimated
plant service lives since the last depreciation study. The annualized  reduction
in depreciation expense, based on December 31, 2001 plant balances, is estimated
to be approximately $100 million ($60 million, net of income taxes). As a result
of the change,  net income for 2002  increased  approximately  $48 million  ($29
million, net of income taxes).
     Effective  April 1,  2001,  Generation  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 Generation  considering,  among other things,
future capital and maintenance  expenditures  at these plants.  The service life
extension  is subject to Nuclear  Regulatory  Commission  (NRC)  approval  of an
extension of existing NRC operating licenses,  which are generally 40 years. The
estimated  annualized  reduction in expense from the change is $132 million ($79
million, net of income taxes).
     In April  2002,  ComEd  changed  its  accounting  estimate  related  to the
allowance  for  uncollectible   accounts  based  on  an  independently  prepared
evaluation of the risk profile of ComEd's  customer  accounts  receivable.  As a
result of the new evaluation,  the allowance for uncollectible  accounts reserve
was reduced by $11 million in the second quarter of 2002.
     In December  2002,  PECO  changed its  accounting  estimate  related to the
allowance  for  uncollectible   accounts  based  on  an  independently  prepared
evaluation  of the risk profile of PECO's  customer  accounts  receivable.  As a
result of the new evaluation,  the allowance for uncollectible  accounts reserve
was reduced by $17 million in the fourth quarter of 2002.
     In 2002,  Generation increased its allowance for uncollectible  accounts by
$6 million based on an independently  prepared evaluation of the risk profile of
Power  Team's  counterparties.  Power Team is the unit  within  Generation  that
manages  the  output of  Generation's  assets  and  energy  sales to reduce  the
volatility of Generation's earnings and cash flows.

5. Regulatory Issues

ComEd


                                       95


     Delivery  Service  Rates.  On June 1,  2001,  ComEd  filed  with the ICC to
establish delivery service charges for residential  customers in preparation for
residential  customer  choice,  which began in May 2002.  ComEd is authorized to
charge customers who purchase  electricity from an alternative  supplier for the
use of its  distribution  system to deliver  that  electricity.  These  delivery
service rates are set through proceedings before the ICC based upon, among other
things, the operating costs associated with ComEd's  distribution system and the
capital investment that ComEd has made in its distribution system.

     On April 1,  2002,  the ICC issued an  interim  order in  ComEd's  Delivery
Services Rate Case. The interim order is subject to an audit of test year (2000)
expenditures,  including  capital plant  expenditures,  with a final order to be
issued in 2003. The order sets delivery rates for residential customers choosing
a new retail electric supplier.  The new rates became effective May 1, 2002 when
residential  customers  became eligible to choose their supplier of electricity.
Traditional  bundled  rates  paid  by  customers  that  retain  ComEd  as  their
electricity  supplier are not affected by this order.  Bundled rates will remain
frozen through 2006, as a result of the June 6, 2002  amendments to the Illinois
Restructuring  Act that  extended the freeze on bundled  rates for an additional
two years. Delivery service rates for non-residential customers are not affected
by the order.

     In October 2002,  the ICC received the report on the audit of the test year
expenditures by a consulting  firm engaged by the ICC to perform the audit.  The
consulting  firm  recommended  certain  additional  disallowances  to test  year
expenditures  and rate base levels.  ComEd does not expect this matter to have a
significant  impact on results of  operations  in 2003,  however,  the estimated
potential   investment   write-off,   before  income  taxes,   could  be  up  to
approximately  $100 million,  if the ICC ultimately  determines that all or some
portion of ComEd's distribution plant is not recoverable through rates. In 2002,
ComEd  recorded  a charge to  earnings,  before  income  taxes,  of $12  million
representing the estimated  minimum probable  exposure  pursuant to SFAS No. 90,
"Regulated  Enterprises - Accounting for Abandonments and Disallowances of Plant
Costs an  Amendment of FASB  Statement  No. 71." ComEd is in  negotiations  with
several parties to resolve the delivery service case.

     Customer  Choice.  As of December  31,  2002,  all ComEd's  customers  were
eligible  to  choose  an  alternative   electric  supplier  and  non-residential
customers  can also  elect the power  purchase  option  (PPO)  that  allows  the
purchase  of  electric  energy  from  ComEd  at  market-based  prices.   ComEd's
residential  customers became eligible to choose a new electric  supplier in May
2002.  However,  as of December 31,  2002,  no  alternative  supplier had sought
approval from the ICC and no electric  utilities  have chosen to enter the ComEd
residential  market for the supply of  electricity.  As of  December  31,  2002,
approximately 22,700 non-residential  customers,  representing approximately 26%
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 $99 million and $24 million in 2002 and 2001,  respectively 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, 2007.  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 Monthly Treasury Bond Long-Term  Average (25 years
and above).  Earnings  for  purposes of ComEd's  threshold  include  ComEd's net
income  calculated  in  accordance  with GAAP and

                                       96


reflect the amortization of regulatory  assets and goodwill.  As a result of the
Illinois legislation, at December 31, 2002, ComEd had a regulatory asset with an
unamortized  balance  of $175  million  that it  expects  to fully  recover  and
amortize by the end of 2006.  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  2002,  2001 or 2000 and does not
currently  expect to trigger the earnings  sharing  provisions in the years 2003
through 2006.

PECO

     Revenue Neutral Reconciliation Adjustment. As permitted by the Pennsylvania
Electric  Competition Act, the Pennsylvania  Department of Revenue  calculated a
2002 Revenue Neutral  Reconciliation  (RNR) adjustment to the gross receipts tax
rate in order to  neutralize  the impact of  electric  restructuring  on its tax
revenues.  In January  2002,  the PUC approved the RNR  adjustment  to the gross
receipts tax rate  collected from  customers.  Effective  January 1, 2002,  PECO
implemented  the  change in the gross  receipts  tax  rate.  The RNR  adjustment
increases the gross receipts tax rate,  which  increased  PECO's annual revenues
and tax obligations by approximately $50 million in 2002. The RNR adjustment was
appealed.  The case was  remanded to the PUC and in August  2002,  the PUC ruled
that PECO is properly  authorized to recover these costs.  In December 2002, the
PUC  approved the  inclusion of the RNR factor in PECO's base rates  eliminating
the need for an annual filing to obtain approval for recovery.

     Customer Choice. The PUC's Final Electric  Restructuring Order provided for
the phase-in of customer choice of electric generation suppliers (EGS) and as of
January 1, 2000,  all  customers  were eligible for customer  choice.  The Final
Restructuring  Order also  established  market share thresholds (MST) to promote
competition.  The MST  requirements  provided that, if as of January 1, 2001 and
January  1,  2003,  respectively,  less  than  35%  and 50% of  residential  and
commercial  customers were shopping,  the number of customers sufficient to meet
the  MST  shall  be  randomly   selected  and  assigned  to  an  EGS  through  a
PUC-determined  process.  For residential and small  commercial  customers,  the
threshold measurement is by number of customers.  For large commercial customers
the  measurement  is by load. On January 1, 2001,  the 35% MST threshold was met
for all customer  classes as a result of agreements  assigning  customers to New
Power Company (New Power) and Green Mountain as providers of last resort default
service.  During 2002,  PECO  experienced an increase in the number of customers
selecting  or  returning  to  PECO  as  their  EGS  and at  December  31,  2002,
approximately  21% of PECO's  residential  load, 10% of its small commercial and
industrial  load  and  7% 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.  In January 2003,
PECO submitted to the PUC an MST plan to meet the 50% threshold  requirement for
its small and large commercial customer classes,  which was approved on February
6, 2003.  According  to the  approved  plan,  randomly  assigned  customers  who
participated  will be switched  to winning  MST  bidders as of their  respective
meter  read  dates.  Also in  February  2003,  PECO  filed  an MST  plan for the
residential customer classes which is pending PUC approval.

     In February  2002,  New Power  notified PECO of its intent to withdraw from
providing Competitive Default Service (CDS) to approximately 180,000 residential
customers. As a result of that withdrawal,  those CDS customers were returned to
PECO in the second quarter of 2002.  Pursuant to a tariff filing approved by the
PUC, PECO is serving those  returned  customers at the discount  energy rates on
generation  provided  for under the  original  New Power CDS  Agreement  for the
remaining  term of that contract.  Subsequently,  in the second quarter of 2002,
New Power also  advised  PECO it planned to


                                       97


withdraw  from  serving  all  of  its  customers  in   Pennsylvania,   including
approximately  15,000 non-CDS PECO  customers.  These customers were returned to
PECO during the third quarter of 2002.

     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.

6. Supplemental Financial Information




Supplemental Income Statement Information
                                                                                   For the Years Ended December 31,
                                                                   ------------------------------------------------
                                                                   2002                   2001                 2000
- -------------------------------------------------------------------------------------------------------------------
Taxes Other Than Income
                                                                                                     
Utility (a)                                                     $   412               $    342            $     196
Real estate                                                         149                    140                   68
Payroll                                                              98                     88                   41
Other                                                                50                     53                   17
- -------------------------------------------------------------------------------------------------------------------
Total                                                           $   709            $       623            $     322
- -------------------------------------------------------------------------------------------------------------------

Other, Net
Investment income                                               $   130            $        47            $      64
Gain (loss) on disposition of assets, net                           199                      4                  (19)
Write-down of impaired investments                                  (41)                   (36)                  --
AFUDC, equity and borrowed                                           19                     18                    3
Reserve for potential plant disallowance                            (12)                    --                   --
Settlement of power purchase agreement                               --                     --                    6
Other                                                                 5                     46                   (1)
- -------------------------------------------------------------------------------------------------------------------
Total                                                           $   300            $        79            $      53
- -------------------------------------------------------------------------------------------------------------------


(a)  Municipal and state utility taxes are also recorded in Revenues on Exelon's
Consolidated Statements of Income.



                                       98


Supplemental Cash Flow Information



                                                                                   For the Years Ended December 31,
                                                                   ------------------------------------------------
                                                                       2002                 2001               2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                
Cash paid during the year:
Interest (net of amount capitalized)                              $     905         $        963         $      519
Income taxes (net of refunds)                                     $     614         $        749         $      272
Non-cash investing and financing activities:
     Regulatory Asset Fair Value Adjustment                       $      --         $        347         $       --
     Resolution of Certain Tax Matters and Merger
           Severance Adjustment                                          14                   --                 --
     Purchase Accounting Estimate Adjustments                            --                 (85)                 --
     Issuance of Exelon Shares for Unicom                                --                   --              5,310
     Capital Lease Obligations                                           52                   --                 --
     Issuance of InfraSource Stock                                       --                   35                 14
     Contribution of Land from Minority Interest of
           Consolidated Subsidiary                                       12                   --                 --
     Note Issued to Sithe in the
           Sithe New England Acquisition                                534                   --                 --
Depreciation and amortization:
     Property, plant and equipment                                $     729         $        697         $      325
     Regulatory assets                                                  472                  445                 53
     Nuclear fuel                                                       374                  393                149
     Decommissioning                                                    126                  144                 46
     Goodwill                                                            --                  155                 34
- -------------------------------------------------------------------------------------------------------------------
Total Depreciation and Amortization                               $   1,701         $      1,834         $      607
- -------------------------------------------------------------------------------------------------------------------


Supplemental Balance Sheet Information



                                                                                                       December 31,
                                                                                -----------------------------------
                                                                                         2002                  2001
- -------------------------------------------------------------------------------------------------------------------
Investments
                                                                                                   
Investment in Sithe                                                                $      478            $      700
Direct financing leases                                                                   445                   427
Energy services and other ventures                                                        167                   161
Investment in AmerGen                                                                     160                    95
Affordable housing projects                                                                88                    98
Communication ventures                                                                     39                   116
Investment in subsidiaries and joint ventures                                              16                    26
- -------------------------------------------------------------------------------------------------------------------
Total                                                                              $    1,393            $    1,623
- -------------------------------------------------------------------------------------------------------------------




                                       99


     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.  Unicom  Investments,  Inc.  holds the  leasehold
interests in the  generating  stations in several  separate  bankruptcy  remote,
special purpose companies it directly or indirectly wholly owns. 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,
                                                                                -----------------------------------
                                                                                      2002                     2001
- -------------------------------------------------------------------------------------------------------------------
                                                                                                 
Total minimum lease payments                                                      $  1,492             $      1,492
Less:  Unearned income                                                               1,047                    1,065
- -------------------------------------------------------------------------------------------------------------------
Net investment in direct financing leases                                         $    445             $        427
- -------------------------------------------------------------------------------------------------------------------


                                                                                                       December 31,
                                                                                -----------------------------------
                                                                                         2002                  2001
- -------------------------------------------------------------------------------------------------------------------
Regulatory Assets
Competitive transition charge                                                     $     4,639        $        4,947
Recoverable deferred income taxes (see Note 14)                                           661                   701
Nuclear decommissioning costs for retired plants                                          248                   310
Recoverable transition costs                                                              175                   277
Reacquired debt costs and interest rate swap settlements                                  137                   112
Non-pension postretirement benefits                                                        65                    71
Compensated absences                                                                        6                     5
Other                                                                                       7                    --
- -------------------------------------------------------------------------------------------------------------------
    Long-Term Regulatory Assets                                                         5,938                 6,423
Deferred energy costs (current asset)                                                      31                    56
- -------------------------------------------------------------------------------------------------------------------
Total                                                                             $     5,969        $        6,479
- -------------------------------------------------------------------------------------------------------------------

o    Competitive  Transition  Charges (CTC) represent PECO's stranded costs that
     the PUC  determined  would be allowed to be recoverable  through  regulated
     rates.  These  costs are  related  to the  deregulation  of the  generation
     portion of the electric utility  business in Pennsylvania.  The unamortized
     balance of the CTC of $4.6 billion and $4.9 billion as of December 31, 2002
     and 2001,  respectively,  was recorded on our Consolidated  Balance Sheets.
     The CTC  includes  Intangible  Transition  Property  sold  to  PECO  Energy
     Transition Trust, a wholly owned subsidiary of PECO, in connection with the
     securitization  of PECO's  stranded cost recovery.  These charges are being
     amortized  through  December  31,  2010  with a return  on the  unamortized
     balance of 10.75%.
o    Nuclear  decommissioning  costs for  retired  plants - recovery is provided
     through  ComEd's  current  regulated  rates  and is  expected  to be  fully
     recovered by the end of 2006.
o    Recoverable  transition costs - recovery is provided for in regulated rates
     pursuant to the Illinois  Restructuring Act and is expected to be recovered
     by the end of 2006.
o    Reacquired  debt costs and interest  rate swap  settlements  -  recoverable
     gains and losses on  reacquired  debt are deferred and  amortized  over the
     rate-regulatory  period,  which is over the life of the new debt  issued to
     finance the debt  redemption.  Interest rate swap  settlements are deferred
     and amortized over the period that the related debt is outstanding.


                                       100


     The  regulatory  assets  related to the nuclear  decommissioning  costs and
deferred income taxes did not require a cash outlay of investor  supplied funds;
consequently,  these  costs are not  earning a rate of return.  Recovery  of the
regulatory  assets for loss on reacquired debt and recoverable  transition costs
is provided for through regulated revenue sources that are based on the pre-open
access cost of service. Therefore, they are earning a rate of return.



                                                                                                       December 31,
                                                                                -----------------------------------
                                                                                         2002                  2001
- -------------------------------------------------------------------------------------------------------------------
Accrued Expenses
                                                                                                   
Taxes Accrued                                                                      $      420            $       91
Interest Accrued                                                                          307                   299
Other Accrued Expenses                                                                    584                   745
- -------------------------------------------------------------------------------------------------------------------
Total                                                                              $    1,311            $    1,135
- -------------------------------------------------------------------------------------------------------------------



7. 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):



                                                                     2002                 2001                 2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                       
Average Common Shares Outstanding                                     322                  320                  202
Assumed Exercise of Stock Options                                       3                    2                    2
- -------------------------------------------------------------------------------------------------------------------
Average Dilutive Common Shares Outstanding                            325                   322                 204
- -------------------------------------------------------------------------------------------------------------------


         Stock options not included in average common shares used in calculating
diluted earnings per share due to their  antidilutive  effect were approximately
five million, five million and 30,000 for 2002, 2001 and 2000, respectively.


8. Accounts Receivable

     Accounts  Receivable  -- Customer at  December  31, 2002 and 2001  included
unbilled operating revenues of $442 million and $438 million,  respectively. The
allowance  for  uncollectible  accounts at  December  31, 2002 and 2001 was $132
million and $213 million, 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, 2002, PECO had sold a $225 million interest in accounts receivable,
consisting  of a  $164  million  interest  in  accounts  receivable  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 $61 million  interest in  special-agreement
accounts  receivable  which was accounted  for as a long-term  note payable (see
Note 13 - 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  cash,  which would  otherwise be received by PECO
under  this  program,  to be held in escrow  until the  requirement  is met.  At
December 31, 2002 and 2001,  PECO met this  requirement  and was not required to
make any cash deposits.


                                       101


9. Property, Plant, and Equipment

     A summary of property, plant and equipment by classification as of December
31, 2002 and 2001 is as follows:




Asset Category                                                                        2002                     2001
- -------------------------------------------------------------------------------------------------------------------
                                                                                                     
Electric-Transmission and Distribution                                          $   10,980                 $ 10,156
Electric-Generation                                                                  5,678                    4,344
Gas                                                                                  1,319                    1,281
Common                                                                                 404                      399
Nuclear Fuel                                                                         3,112                    2,681
Construction Work in Progress                                                        2,783                    1,294
Other Property, Plant and Equipment                                                  1,628                    1,371
- -------------------------------------------------------------------------------------------------------------------
         Total Property, Plant and Equipment                                        25,904                   21,526
         Less Accumulated Depreciation (including accumulated
         amortization of nuclear fuel of $2,212 and $1,838 as of
         December 31, 2002 and 2001, respectively)                                   8,770                    7,735
- -------------------------------------------------------------------------------------------------------------------
Property, Plant and Equipment, net                                              $   17,134                  $13,791
- -------------------------------------------------------------------------------------------------------------------



10. Jointly Owned Electric Utility Plant

     Exelon's undivided  ownership  interests in jointly owned electric plant at
December 31, 2002 and 2001 were as follows:



                                                                                    Production Plant
                            -------------------------------------------------------------------------    Transmission
December 31, 2002           Peach Bottom           Salem     Keystone      Conemaugh     Quad Cities  and Other Plant
- ---------------------------------------------------------------------------------------------------------------------
                                                                                           
Operator                      Generation           PSE&G      Reliant        Reliant      Generation      Various Co.
Participating Interest               50%          42.59%       20.99%         20.72%             75%        21 to 44%
Exelon's Share:
Plant                              $ 417          $   44     $    131      $     214        $    171      $        58
Accumulated Depreciation             243              12          117            145               4               22
Construction Work
     in Progress                      52              36           28              1              35               --
- ---------------------------------------------------------------------------------------------------------------------





                                       102






                                                                                    Production Plant
                            -------------------------------------------------------------------------     Transmission
December 31, 2001           Peach Bottom           Salem     Keystone      Conemaugh     Quad Cities   and Other Plant
- ----------------------------------------------------------------------------------------------------------------------
                                                                                        
Operator                      Generation           PSE&G      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.  Direct  expenses of the
jointly owned plants are included in the corresponding operating expenses on the
Consolidated Income Statements.

11. 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 $7.4 billion in current year (2003)  dollars.  Based on
the extended  license lives of the nuclear plants,  expenditures are expected to
occur primarily when the operating plants are decommissioned,  during the period
2029 through  2056.  Decommissioning  costs are  currently  recoverable  through
regulated  rates.  Under  rates in effect  through  December  31,  2002,  Exelon
collected  approximately  $102 million in 2002 from  customers.  At December 31,
2002, the decommissioning  liability,  recorded in Accumulated  Depreciation and
Deferred Credits and Other Liabilities on Exelon's  Consolidated Balance Sheets,
was $2.8 billion and $1.4  billion,  respectively.  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 $1.4 billion,  respectively. In order to fund future decommissioning
costs, at December 31, 2002 and 2001, Exelon held $3.1 billion and $3.2 billion,
respectively,  in trust  accounts that 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 has been upheld on appeal
in the Illinois  Appellate Court and the Illinois  Supreme Court has declined to
review the Appellate Court's decision.
     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  Merger  purchase  price
allocation and resulted in a  corresponding  increase in goodwill.  Also,  ComEd
recorded an obligation to Generation of approximately


                                       103


$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.
     Nuclear  decommissioning  costs  associated  with  the  nuclear  generating
stations formerly owned by PECO continue to be recovered currently through rates
charged by PECO to regulated customers. These amounts are remitted to Generation
as allowed by the PUC. Under an agreement  effective September 2001, PECO remits
$29  million  per year to  Generation  related to nuclear  decommissioning  cost
recovery.
     On December 31, 2002, PECO filed with the PUC for an annual increase in its
decommissioning  cost recovery of $20 million effective June 1, 2004. The filing
is consistent  with  provisions in the  Restructuring  Settlement and the Merger
Settlement which require PECO to update the cost of  decommissioning  every five
years. The additional  amount requested is expected to be reduced as it does not
reflect  pending  life  extensions  at Peach  Bottom.  The  approval of the life
extensions is expected by mid-2003.
     Under the Nuclear Waste Policy Act of 1982 (NWPA),  the U.S.  Department of
Energy (DOE) is responsible  for the selection and  development of  repositories
for, and the disposal of, spent  nuclear fuel (SNF) and  high-level  radioactive
waste.  ComEd and PECO, as required by the NWPA, each signed  contracts with the
DOE  (Standard  Contract) to provide for  disposal of SNF from their  respective
nuclear  generating  stations.  In  accordance  with the  NWPA and the  Standard
Contract,  ComEd and PECO pay the DOE one mill ($.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 31, 1998.
The DOE,  however,  failed to meet that  deadline  and its  performance  will 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,  Quad Cities and Peach Bottom Units and
its consideration of dry storage at other units.
     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. On August
30, 2002, after taking certain damages related to discovery,  ComEd filed briefs
in response to the DOE's  motions.  The Court has postponed the time for the DOE
to file reply briefs while it entertains  additional DOE discovery motions. This
litigation was assumed by Generation in the corporate restructuring.
     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 agreed 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


                                       104


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. Generation
assumed this contract in restructuring.

     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,  and  Generation   assumed  the  claim  in  the  2001  corporate
restructuring. On September 24, 2002, the United States Court of Appeals for the
Eleventh  Circuit  ruled  that the fee  adjustment  provision  of the  agreement
violates the NWPA and  therefore  is null and void.  The Court did not hold that
the agreement as a whole is invalid.  Article  XVI(I) of the Amendment  provides
that if any portion of the Amendment is found to be void, the DOE and Generation
agree to negotiate in good faith and attempt to reach an  enforceable  agreement
consistent with the spirit and purpose of this Amendment. That provision further
provides that should a major term be declared  void,  and the DOE and Generation
cannot reach a subsequent agreement, the entire Amendment would be rendered null
and void, the original Peach Bottom Standard Contract would remain in effect and
the parties would return to  pre-Amendment  status.  Pursuant to Article XIV(I),
Generation  has  begun  negotiations  with the DOE and  those  negotiations  are
ongoing. Under the agreement,  Generation has received approximately $40 million
in credits against contributions to the nuclear waste fund.
     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.  Generation  assumed  the
defense in restructuring.  On September 30, 2002, the Court granted Generation's
motion and  dismissed  the  lawsuit  on the  ground  that the Court did not have
jurisdiction over the matter.
     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,  2002,  the
unfunded  liability  for the one-time fee with  interest was $858  million.  The
liabilities for spent nuclear fuel disposal  costs,  including the one-time fee,
were transferred to Generation as part of the corporate restructuring.


12. Notes Payable




                                                                     2002               2001                   2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                 
Average borrowings                                            $       337          $      193             $     186
Average interest rates, computed on daily basis                      1.94%               4.01%                 6.62%
Maximum borrowings outstanding                                $       783          $      599             $     500
Average interest rates, at December 31                               1.88%               2.63%                 7.18%
- -------------------------------------------------------------------------------------------------------------------


     Exelon,  ComEd,  PECO and Generation  entered into a $1.5 billion unsecured
revolving credit facility on November 22, 2002 with a group of banks.  Under the
credit facility,  each borrower may borrow up to a designated sublimit amount on
a revolving  credit  basis  through  November  20,  2003.  This credit  facility
includes a term-out option that allows any outstanding  borrowings at the end of
the  revolving  credit  period to be repaid on November  21,  2004.  This credit
facility is used principally to support the commercial paper programs of Exelon,
ComEd, PECO and Generation. At December 31, 2002, the amount of commercial paper
outstanding  was $681 million  which does not include $267 million that has been
classified  as long-term  debt.  At December 31, 2001,  the amount of commercial
paper  outstanding  was $360 million.  Interest  rates on the advances under the
credit  facility are based on the London  Interbank  Offering Rate (LIBOR) as of
the date of the advance.


                                       105


13. Long-Term Debt



                                                                                                       December 31,
                                                        ------------------------------------------------------------
                                                                            Maturity
                                                                 Rates          Date         2002              2001
- -------------------------------------------------------------------------------------------------------------------
                                                                                     
Securitized Long-Term Debt
    ComEd Transitional Trust Notes
         Series 1998-A:                                    5.39%-5.74%     2003-2008    $   2,040      $      2,380
    PETT Bonds Series 1999-A:
         Fixed rates                                       5.63%-6.13%     2003-2008 (a)    2,426             2,577
         Floating rates                                    1.48%-1.55%     2004-2007 (a)      274               310
    PETT Bonds Series 2000-A:                              7.63%-7.65%          2009 (a)      750               890
    PETT Bonds Series 2001:                                      6.52%          2010 (a)      805               805
Other Long-Term Debt
    First and Refunding Mortgage Bonds (b) (c):
         Fixed rates                                       4.4%-9.875%     2003-2023        3,614             3,942
         Floating rates                                    1.08%-1.41%     2012-2013          254               154
    Notes payable and other                                6.40%-9.20%     2003-2020        2,393             2,651
    SBG Facility                                              6.37%(d)          2007        1,036                --
    Pollution control notes:
         Fixed rates                                        5.2%-6.95%     2007-2034          199                44
         Floating rates                                    1.05%-1.50%     2009-2034          456               583
    Notes payable - accounts receivable agreement                1.42%          2005           61                55
    Sinking fund debentures                               3.125%-4.75%     2004-2011           20                23
    Commercial Paper (e)                                     1.88% (f)          2003          267                --
- -------------------------------------------------------------------------------------------------------------------
Total Long-Term Debt (g)                                                                   14,595            14,414
    Unamortized debt discount and premium, net                                               (107)             (129)
    Fair value hedge carrying value adjustment                                                 41                --
    Due within one year                                                                    (1,402)           (1,406)
- -------------------------------------------------------------------------------------------------------------------
Long-Term Debt                                                                       $     13,127      $     12,879
- -------------------------------------------------------------------------------------------------------------------


(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, 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)  The rate for the SBG Facility is stated as an average rate. Under the terms
     of the SBG Facility,  SBG is required to effectively  fix the interest rate
     on 50% of the borrowings  under the facility  through its maturity in 2007.
     The SBG Facility is subject to a variable rate based on the LIBOR rate plus
     a margin of 1.375%, however,  through the required interest rate swaps, SBG
     has effectively  fixed the LIBOR component of the interest rate at 5.73% on
     83% of the debt balance as of December 31, 2002.
(e)  Classified as long-term at December 31, 2002 since it was  refinanced  with
     long-term  debt in January  2003.
(f)  Average interest rate of commercial paper outstanding at December 31, 2002.
(g)  Long-term  debt  maturities in the period 2003 through 2007 and  thereafter
     are as follows:
     2003      $ 1,669
     2004          962
     2005        1,313
     2006        1,273
     2007        1,172
     Thereafter  8,206
     -----------------
     Total     $14,595
     -----------------
     2003  maturities  include $267 million of  commercial  paper  classified as
long-term debt (see Note 23 - Subsequent Events).


                                       106


     In 2002,  ComEd issued $700 million of long-term debt primarily  consisting
of the issuance of $600 million of 6.15% First  Mortgage  Bonds,  Series 98, due
March 15, 2012 and the issuance of $100 million of Illinois  Development Finance
Authority  floating-rate  Pollution Control Revenue Refunding Bonds, Series 2002
due April 15, 2013. In 2002,  ComEd redeemed or paid at maturity  $1,540 million
of long-term  debt  primarily  consisting  of the  redemption of $100 million of
7.25% Illinois Development Finance Authority Pollution Control Revenue Refunding
Bonds,  Series 1991 due June 1, 2011,  the  redemption of $200 million of 8.625%
First  Mortgage  Bonds,  Series 81, due February 1, 2022, the redemption of $200
million of 8.5% First Mortgage  Bonds,  Series 84 due July 15, 2022, the payment
at maturity  of $200  million of 7.375%  First  Mortgage  Bonds,  Series 85, due
September  15, 2002,  the  redemption  of $200 million of 8.375% First  Mortgage
Bonds,  Series 86, due  September  15,  2022,  the  payment at  maturity of $200
million of variable  rate senior notes due  September  30, 2002,  the payment at
maturity of $100 million of 9.17%  medium-term  notes due October 15, 2002,  and
the retirement of $340 million in transitional trust notes.
     In 2002,  Generation exchanged $700 million of 6.95% Senior Notes issued in
2001 for notes which are registered  under the Securities  Act. ComEd  exchanged
$600 million of 6.15% First Mortgage  Bonds,  Series 98, due March 15, 2012, for
bonds which are registered under the Securities Act. PECO exchanged $250 million
of 5.95% private  placement First and Refunding  Mortgage Bonds, due November 1,
2011,  for bonds which are  registered  under the  Securities  Act. The exchange
bonds are  identical  to the  outstanding  bonds except for the  elimination  of
certain  transfer   restrictions  and  registration  rights  pertaining  to  the
outstanding bonds.  ComEd, PECO and Generation did not receive any cash proceeds
from issuance of the exchange bonds.
     In 2002 and 2001, ComEd entered into forward  starting  interest rate swaps
with  an  aggregate   notional   amount  of  $830  million  and  $250   million,
respectively,  to manage interest rate exposure associated with anticipated debt
issuance.  In 2002,  forward  starting  interest  rate swaps  with an  aggregate
notional amount of $450 million were settled with net proceeds to counterparties
of $10  million  that  has  been  deferred  in  regulatory  assets  and is being
amortized  over the life of the First  Mortgage Bonds as an increase to interest
expense.
     In 2002 and 2001,  ComEd entered into interest rate swap  agreements with a
notional amount of $250 million and $235 million,  respectively,  to effectively
convert fixed rate debt to floating rate debt.
     In 2002,  PECO issued $225  million of 4.75% First and  Refunding  Mortgage
Bonds, due October 1, 2012. This bond issuance repaid  commercial paper that was
used to pay $222 million of First and Refunding  Mortgage Bonds at maturity with
a weighted  average  interest rate of 7.30%.  In connection with the issuance of
the First and Refunding  Mortgage Bonds,  PECO settled forward starting interest
rate swaps in the aggregate  notional  amount of $200 million  resulting in a $5
million  pre-tax loss  recorded in other  comprehensive  income,  which is being
amortized over the expected remaining life of the related debt.
     In 2001, ComEd redeemed $196 million of 9.875% First Mortgage Bonds, Series
75, due June 15, 2020 and retired $340 million in transitional trust notes.
     In 2001, PECO Energy Transition Trust (PETT), a Delaware business trust and
a wholly owned  subsidiary  of PECO,  refinanced  $805 million of floating  rate
Series  1999-A  Transition  Bonds  through the  issuance  by PETT of  fixed-rate
transition bonds (Series 2001-A Transition  Bonds).  The 2001-A Transition Bonds
are  non-callable,  fixed rate  securities  with an interest rate of 6.52%.  The
Series 2001-A  Transition Bonds have an expected final payment date of September
1, 2010 and a termination  date of December 31, 2010.  In  connection  with this
refinancing,  PECO settled $318 million of forward starting  interest rate swaps
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 this
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.
     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


                                       107


the  counterparties of $13 million that has been deferred and is being amortized
over the life of the Series 2000-A  Transition  Bonds as an increase to interest
expense.
     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 that were
deferred and are being  amortized over the life of the Series 1999-A  Transition
Bonds as a reduction of interest expense.
     At December 31, 2002 and 2001,  the aggregate  unamortized  net gain on the
settlement  of the PECO  swap  transactions  was $36  million  and $55  million,
respectively, recorded in Other Comprehensive Income.
     ComEd  prepayment  premiums of $24 million,  and net unamortized  premiums,
discounts and debt issuance expenses of $3 million,  and prepayment  premiums of
$39 million,  offset by unamortized  issuance premiums of $17 million associated
with the  early  retirement  of debt in 2002 and 2001,  respectively,  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, PECO incurred charges aggregating $6 million ($4 million,  net of tax) for
prepayment  premiums and the write-offs of unamortized  deferred financing costs
associated with the early retirement of debt that have been recorded in interest
expense.



14. Income Taxes

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




                                                                                   For the Years Ended December 31,
                                                                    -----------------------------------------------
                                                                      2002               2001                  2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                 
Included in operations:
Federal
    Current                                                      $     624         $      880             $     161
    Deferred                                                           250                (61)                  163
    Investment tax credit amortization                                 (15)               (14)                  (15)
State
    Current                                                             96                119                    --
    Deferred                                                            43                  7                    30
- -------------------------------------------------------------------------------------------------------------------
                                                                 $     998         $      931             $     339
- -------------------------------------------------------------------------------------------------------------------

Included in cumulative effect of changes in accounting principles:
Federal
    Deferred                                                     $     (87)        $        6             $      13
State
    Deferred                                                            (3)                 2                     3
- -------------------------------------------------------------------------------------------------------------------
                                                                 $     (90)        $        8             $      16
- -------------------------------------------------------------------------------------------------------------------


     The effective income tax rate varies from the U.S.  Federal  statutory rate
principally due to the following:


                                       108




                                                                                   For the Years Ended December 31,
                                                                   ------------------------------------------------
                                                                       2002              2001                  2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                                     
U.S. Federal statutory rate                                          35.0%             35.0%                35.0%
Increase (decrease) due to:
    Property basis differences                                       (0.4)             (0.2)                 0.1
    State income taxes, net of Federal income tax benefit             3.2               3.4                  2.1
    Amortization of investment tax credit                            (0.4)             (0.5)                (1.6)
    Amortization of goodwill                                         --                 1.9                  0.9
    Dividends on PECO Preferred Stock                                 0.1               0.2                  0.4
    Other, net                                                       (0.1)             (0.1)                 0.7
- -------------------------------------------------------------------------------------------------------------------
Effective income tax rate                                            37.4%            39.7%                 37.6%
- -------------------------------------------------------------------------------------------------------------------

         The tax effects of  temporary  differences  giving rise to  significant
portions of Exelon's deferred tax assets and liabilities as of December 31, 2002
and 2001 are presented below:

                                                                                        2002                   2001
- -------------------------------------------------------------------------------------------------------------------
Deferred tax liabilities:
    Plant basis difference                                                       $     4,710            $     4,630
    Deferred gain on sale of plants                                                      860                    872
    Deferred investment tax credit                                                       212                    222
    Deferred debt refinancing costs                                                       96                     44
    Tax deductible goodwill                                                               --                      2
    Unrealized gain on derivative financial instruments                                   --                     34
- -------------------------------------------------------------------------------------------------------------------
Total deferred tax liabilities                                                         5,878                  5,804
- -------------------------------------------------------------------------------------------------------------------
Deferred tax assets:
    Decommissioning and decontamination obligations                                     (607)                  (573)
    Deferred pension and postretirement obligations                                     (911)                  (382)
    Tax deductible goodwill                                                              (95)                    --
    Unrealized loss on derivative financial instruments                                  (60)                    --
    Other, net                                                                          (208)                  (194)
- -------------------------------------------------------------------------------------------------------------------
Total deferred tax assets                                                             (1,881)                (1,149)
- -------------------------------------------------------------------------------------------------------------------
Deferred income taxes (net) on the balance sheet                                 $     3,997            $     4,655
- -------------------------------------------------------------------------------------------------------------------



     In accordance with regulatory  treatment of certain temporary  differences,
Exelon has recorded a regulatory  asset for  recoverable  deferred income taxes,
pursuant to SFAS No. 109,  "Accounting  for Income  Taxes," of $661  million and
$701  million at December  31, 2002 and 2001,  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.
     Exelon's predecessor  entities,  Unicom and PECO, have years that are under
review at the audit or appeals level of the Internal  Revenue  Service (IRS) and
certain state authorities.  These reviews by the governmental taxing authorities
are not expected to have an adverse impact on the financial  condition or result
of operations at Exelon.
     ComEd has taken  certain tax  positions,  which have been  disclosed to the
IRS, to defer the tax gain on the 1999 sale of its fossil generating  assets. As
of December 31, 2002, a deferred  tax  liability of  approximately  $860 million
related to the fossil  plant  sale is  reflected  in  Deferred  Income  Taxes on
Exelon's  Consolidated  Balance Sheets.  ComEd's management believes an adequate
reserve for interest has been  established  in the event that such positions are
not  sustained.  Changes in IRS  interpretations  of existing  tax  authority or
challenges to ComEd's  positions  could have the impact of  accelerating  future
income tax payments and  increasing  interest  expense  above  amounts  reserved
related to the deferred tax


                                       109


gain that becomes  current.  The Federal tax returns  covering the period of the
1999 fossil plant sale are  anticipated to be under IRS audit beginning in 2003.
Final resolution of this matter is not anticipated for several years.

     As of December 31, 2002 and 2001, Exelon had recorded valuation  allowances
of $13 million and $2 million, respectively.


15. Retirement Benefits

     Exelon sponsors  defined benefit pension plans and  postretirement  welfare
benefit plans applicable to essentially all ComEd, PECO, Generation and Business
Services Company (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.  Approximately 4,700 management employees who were active participants in
the former  Unicom and PECO pension  plans on December  31,  2000,  and remained
employed by Exelon on January 1, 2002  elected 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.


                                       110





                                                             Pension Benefits         Other Postretirement Benefits
                                                       ------------------------------------------------------------
                                                          2002           2001              2002                2001
- -------------------------------------------------------------------------------------------------------------------
Change in benefit obligation:
                                                                                            
Net benefit obligation at beginning of year         $    7,101      $   6,695        $    2,331         $     2,275
Service cost                                                95             94                57                  42
Interest cost                                              525            498               160                 161
Plan participants' contributions                            --             --                 8                   4
Plan amendments                                            120             44                --                (191)
Actuarial (gain)/loss                                      514            254               155                 173
Curtailments/Settlements                                    --           (38)                --                  --
Special accounting costs                                     4             48                --                   3
Gross benefits paid                                      (505)          (494)             (156)                (136)
- -------------------------------------------------------------------------------------------------------------------
Net benefit obligation at end of year               $    7,854      $   7,101       $     2,555         $     2,331
- -------------------------------------------------------------------------------------------------------------------
Change in plan assets:
Fair value of plan assets at beginning of year      $    6,279      $   7,000         $   1,132         $     1,188
Actual return on plan assets                             (581)          (265)             (125)                 (14)
Employer contributions                                     202             38                73                  90
Plan participants' contributions                            --             --                 8                   4
Gross benefits paid                                      (505)          (494)             (156)                (136)
- -------------------------------------------------------------------------------------------------------------------
Fair value of plan assets at end of year            $    5,395      $   6,279         $     932         $     1,132
- -------------------------------------------------------------------------------------------------------------------
Funded status at end of year:                       $  (2,459)      $   (822)       $   (1,623)         $    (1,199)
Miscellaneous adjustment                                   (3)             --                --                  --
Unrecognized net actuarial (gain)/loss                   2,118            397               793                 440
Unrecognized prior service cost                            211            108             (149)                (191)
Unrecognized net transition obligation (asset)            (11)           (17)               102                 103
- -------------------------------------------------------------------------------------------------------------------
Net amount recognized at end of year                $    (144)      $   (334)         $   (877)         $      (847)
- -------------------------------------------------------------------------------------------------------------------
Amounts recognized in statements of financial position:
Prepaid benefit cost                                $      145      $      --         $      --         $        --
Accrued benefit cost                                     (289)          (334)             (877)                (847)
Additional minimum liability                           (1,815)             --                --                  --
Intangible asset                                           211             --                --                  --
Accumulated other comprehensive income                   1,604             --                --                  --
- -------------------------------------------------------------------------------------------------------------------
Net amount recognized at end of year                $    (144)      $   (334)         $   (877)         $      (847)
- -------------------------------------------------------------------------------------------------------------------



                                       111





                                                       Pension Benefits               Other Postretirement Benefits
                                      -----------------------------------------------------------------------------
                                        2002          2001         2000           2002          2001           2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                            
Weighted-average assumptions
as of December 31,
Discount rate                          6.75%         7.35%        7.60%          6.75%         7.35%          7.60%
Expected return on plan assets         9.50%         9.50%        9.50%          8.80%         8.80%          8.80%
Rate of compensation increase          4.00%         4.00%        4.30%          4.00%         4.00%          4.30%
Health care cost trend on
     covered charges                     N/A           N/A        N/A             8.5%        10.00%          7.00%
                                                                            decreasing    decreasing     decreasing
                                                                           to ultimate   to ultimate    to ultimate
                                                                         trend of 4.5% trend of 4.5%  trend of 5.0%
                                                                               in 2008       in 2008        in 2005
- -------------------------------------------------------------------------------------------------------------------

                                                     Pension Benefits                 Other Postretirement Benefits
                                      -----------------------------------------------------------------------------
                                       2002        2001          2000             2002          2001           2000
- -------------------------------------------------------------------------------------------------------------------
Components of net periodic
benefit cost (benefit):
Service cost                          $  95      $   94        $   39     $         57       $    42       $     24
Interest cost                           525         498           219              160           161             83
Expected return on assets              (628)       (625)         (316)             (93)          (99)           (34)
Amortization of:
 Transition obligation (asset)           (4)         (4)           (4)              10            10             12
 Prior service cost                      16           9             7              (37)           (9)            --
 Actuarial (gain) loss                   --         (25)          (26)               6             1             --
Curtailment charge (credit)              --         (12)          (12)              --             9             24
Settlement charge (credit)               --          (9)          (16)              --            --             --
- -------------------------------------------------------------------------------------------------------------------
Net periodic benefit cost (benefit)   $   4      $  (74)       $ (109)    $        103       $   115       $    109
- -------------------------------------------------------------------------------------------------------------------
Special accounting costs              $   4      $   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                                                                $      302
Effect of a one percentage point decrease in assumed health care cost trend
     on total service and interest cost components                                                       $      (27)
     on postretirement benefit obligation                                                                $     (252)
- -------------------------------------------------------------------------------------------------------------------


     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.
     Exelon's costs of providing  pension and  postretirement  benefit plans are
dependent upon a number of factors,  such as the rates of return on pension plan
assets, discount rate, and the rate of increase in health care costs. The market
value of plan assets has been  affected by sharp  declines in the equity  market
since the third quarter of 2000. As a result,  at December 31, 2002,  Exelon was
required to recognize an additional minimum liability and an intangible asset as
prescribed by SFAS No. 87  "Employers'  Accounting  for Pensions." The liability
was  recorded as a reduction  to  shareholders'  equity,  and the equity will be
restored  to the  balance  sheet in future  periods  when the fair value of plan
assets exceeds the accumulated benefit obligations.  The amount of the reduction
to  shareholders'  equity (net of income  taxes) in 2002 was $1.0  billion.  The
recording  of this  reduction  did not affect net income or cash flow in 2002 or
compliance with debt covenants.



                                       112


     Special  accounting  costs of $4  million  in 2002 and $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.
     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.
     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 $63 million, $57 million and $17 million in 2002, 2001
and 2000, respectively.


16. Preferred Securities of Subsidiaries

Preferred and Preference Stock

     At December 31, 2002 and 2001,  cumulative  Preferred Stock of PECO, no par
value,  consisted  of  15,000,000  shares  authorized  and the amounts set forth
below:





                                                                                                        December 31,
                                           --------------------------------------------------------------------------
                             Current            2002              2001                  2002                  2001
                            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                    --                    19
- -------------------------------------------------------------------------------------------------------------------
Total preferred stock                       1,374,720         1,560,120            $      137             $     156
- -------------------------------------------------------------------------------------------------------------------


(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,
     2002 and  August 1, 2001.  At  December  31,  2000,  shares  and  principal
     outstanding were 370,800 and $37 million, respectively.


                                       113


     At December 31, 2002 and 2001,  ComEd Preferred Stock and ComEd  Preference
Stock consisted of 850,000 and 6,810,451 shares authorized,  respectively,  none
of which were outstanding.

Company Obligated Mandatorily Redeemable Preferred Securities
     At  December  31,  2002 and 2001,  subsidiary  trusts of PECO and ComEd had
outstanding the following preferred securities:




                                                                                                        December 31,
                                                                ----------------------------------------------------
                                Mandatory  Distri-   Liqui-     2002            2001        2002          2001
                                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                                                                              (20)          (21)
- -------------------------------------------------------------------------------------------------------------------
    Total                                                       8,150,000       8,150,000     $   330     $     329
- -------------------------------------------------------------------------------------------------------------------


     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 of 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  preferred  securities  issued by each of ComEd  Financing  I and ComEd
Financing  II have no voting  privileges,  except (i) for the right to approve a
merger,  consolidation or other transaction  involving the applicable trust that
would result in certain United States Federal  income tax  consequences  to that
trust,  (ii)  with  respect  to  certain  amendments  to  the  applicable  trust
agreement,  (iii) for  certain  voting  privileges  that  arise upon an event of
default  under the  applicable  trust  agreement or (iv) with respect to certain
amendments to the related ComEd guarantee agreement.
     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.

17. Common Stock

     At December 31, 2002 and 2001,  common stock without par value consisted of
600,000,000  and 600,000,000  shares  authorized and 323,312,586 and 321,006,904
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


                                       114


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.

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,  2002,  there  were
13,000,000  options authorized for issuance under the LTIP and 2,000,000 options
authorized under the broad-based incentive program.

     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, 2002 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)
                                     2002         2002           2001         2001             2000            2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                        
Balance at January 1           14,039,996    $   43.96     15,287,859    $   42.13        6,065,897       $   31.91
Options granted/assumed         3,938,632        47.12        629,200        66.42       11,089,051 (a)       46.09
Options exercised             (1,821,339)        33.37    (1,695,474)        34.84      (1,725,058)           31.79
Options canceled                (270,299)        53.62      (181,589)        52.64        (142,031)           39.95
- -------------------------------------------------------------------------------------------------------------------
Balance at December 31         15,886,990        45.80     14,039,996        43.96       15,287,859           42.13
- -------------------------------------------------------------------------------------------------------------------
Exercisable at
     December 31               10,491,184        43.96      8,006,193        38.75        4,953,942           30.04
- -------------------------------------------------------------------------------------------------------------------
Weighted average fair value
           of options granted during year    $   13.62                   $   19.59                        $   16.62
- -------------------------------------------------------------------------------------------------------------------


(a) Includes 5.3 million options converted in the Merger.

        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 2002, 2001 and 2000, respectively:

                                      2002             2001               2000
- -------------------------------------------------------------------------------
Dividend yield                        3.3%             3.2%               3.6%
Expected volatility                  36.8%            36.8%              36.8%
Risk-free interest rate               4.6%             4.9%               5.9%
Expected life (years)                 5.0              5.0                5.0
- -------------------------------------------------------------------------------


                                       115


     At December 31, 2002, 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                       560,700              6.14        $  19.68             560,700         $  19.68
$20.01-$30.00                       926,332              4.64           25.49             926,332            25.49
$30.01-$40.00                     4,668,877              7.53           37.87           4,031,683            37.76
$40.01-$50.00                     4,844,505              9.39           45.61           1,419,748            42.25
$50.01-$60.00                     4,265,109              8.84           59.39           3,159,481            59.47
$60.01-$70.00                       621,467              9.03           67.32             393,240            67.28
- -------------------------------------------------------------------------------------------------------------------
Total                            15,886,990                                            10,491,184
- -------------------------------------------------------------------------------------------------------------------


     Exelon  common  stock  awards under  Exelon's  LTIP of 316,025  shares were
issued  during  2000 and 1999.  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  of  $13  million   includes
amortization  expense of  approximately  $1  million,  $5 million and $5 million
during 2002, 2001 and 2000, respectively.
     Exelon  common  share  awards of 590,074,  426,794 and 159,129  shares were
granted under Exelon's LTIP and board  compensation  plans during 2002, 2001 and
2000, respectively.  Total accumulated compensation cost of $60 million is to be
accrued to expense over the vesting period of up to 5 years from the grant date.
The  related  accumulated  amortization  of $37  million  includes  amortization
expense of $20 million,  $11 million and $6 million during 2002,  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 3,000,000  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. Employees purchased 257,455 and 137,648 shares of
Exelon common stock under the ESPP in 2002 and 2001, respectively.


Fund Transfer Restrictions Under PUHCA
     Under PUHCA,  Exelon is precluded from borrowing or receiving any extension
of credit or indemnity from its subsidiaries and can lend, but not borrow,  from
Exelon's intercompany money pool. Additionally, under PUHCA, Exelon, ComEd, PECO
and Generation can pay dividends  only from retained,  undistributed  or current
earnings.  However,  the SEC order granted permission to ComEd, and to Exelon to
the  extent  we  receive   dividends  from  ComEd  paid  from  ComEd  additional
paid-in-capital,  to pay up to  $500  million  in  dividends  out of  additional
paid-in  capital,  although  Exelon may not pay dividends out of paid-in capital
after December 31, 2002 if its ratio of common equity to total capitalization is
less than 30%.  At  December  31,  2002,  Exelon had  retained  earnings of $2.0
billion,  which includes ComEd retained earnings of $577 million,  PECO retained
earnings of $401 million and Generation  undistributed earnings of $924 million.
In 2002,  Exelon  recorded a reduction to  shareholders'  equity of $1.0 billion
related to the minimum pension liability.  At December 31, 2002, Exelon's common
equity to total capitalization ratio was 32%.



                                       116


Undistributed Earnings of Equity Method Investments
     At December 31, 2002,  Exelon had  consolidated  undistributed  earnings of
equity method investments of $145 million.


18. Fair Value of Financial Assets and Liabilities

     The  carrying  amounts  and fair values of  Exelon's  financial  assets and
liabilities as of December 31, 2002 and 2001 were as follows:




                                                                   2002                                        2001
                                             ------------------------------           ------------------------------
                                            Carrying                                  Carrying
                                              Amount          Fair Value                Amount           Fair Value
- -------------------------------------------------------------------------------------------------------------------
                                                                                             
Non-derivatives:
Liabilities
     Long-term debt (including
       amounts due within one year)       $   14,529         $   15,950            $    14,285           $   14,912
      Preferred Securities of Subsidiaries       595                739                    613                  572
Derivatives:
     Fixed to floating interest rate swaps        41                 41                    (20)                 (20)
     Floating to fixed interest rate swaps      (114)              (114)                    --                   --
     Forward starting interest rate swaps        (52)               (52)                    (1)                  (1)
     Energy derivatives                         (143)              (143)                    78                   78
- -------------------------------------------------------------------------------------------------------------------


     Cash and cash equivalents,  customer accounts receivable and trust accounts
for decommissioning nuclear plants are recorded at their fair value.

     As of December  31, 2002 and 2001,  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, in the case of the Energy  Delivery  business,  their  dispersion
across many industries.

     Exelon  has  entered  into  fixed to  floating  interest  rate swaps in the
aggregate amount of $485 million of fixed-rate obligations of ComEd. These swaps
have been  designated  as fair-value  hedges,  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 hedges remain effective and the underlying  transaction
remains  probable,  changes  in the fair  value of the  swaps  will be offset by
changes  in the fair  value of the  hedged  liabilities.  Any change in the fair
value of the hedges as a result of ineffectiveness would be recorded immediately
in  earnings.  The fair market  value of these swaps was $41 million at December
31, 2002.



                                       117


     Under the terms of the SBG credit facility,  SBG is required to effectively
fix the interest rate on 50% of the  borrowings  under the facility  through its
maturity in 2007. As of December 31, 2002,  Generation has entered into floating
to fixed interest rate swap agreements which have effectively fixed the interest
rate on $861 million of notional principal,  or 83% of borrowings outstanding at
December 31, 2002.  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.  The
fair market value exposure of these swaps was $92 million at December 31, 2002.

     Exelon has also  entered  into  floating  to fixed  interest  rate swaps to
manage  interest  rate  exposure  associated  with the  floating  rate series of
transition  bonds issued to  securitize  PECO's  stranded cost  recovery.  These
interest  rate swaps were  designated as cash flow hedges.  These  interest rate
swaps had an aggregate fair market value exposure of $22 million at December 31,
2002.

     PECO also has interest rate swaps in place to satisfy  counterparty  credit
requirements  in regards to the floating rate series of  transition  bonds which
are mirror  swaps of each  other.  These swaps are not  designated  as cash flow
hedges,  therefore,  they  are  required  to be  marked-to-market  if there is a
difference  in their  values.  Since these swaps are  offsetting  each other,  a
mark-to-market adjustment is not expected to occur.

     During 2002, PECO entered into forward starting  interest rate swaps,  with
an aggregate notional amount of $200 million, in anticipation of the issuance of
debt at PECO. These interest rate swaps were designated as cash flow hedges.  In
connection  with bond  issuances in 2002,  PECO settled these  forward  starting
interest  rate swaps  resulting  in a $5 million  pretax loss  recorded in other
comprehensive  income,  which is being  amortized  over the life of the  related
debt.

     During 2002 and 2001,  ComEd  entered into  forward-starting  interest rate
swaps,  with an  aggregate  notional  amount of $830  million and $250  million,
respectively,  in  anticipation of the issuance of debt. In connection with bond
issuances in 2002,  ComEd settled  forward  starting  interest rate swaps in the
aggregate  notional  amount of $450 million,  resulting in a $10 million pre-tax
loss recorded as a regulatory  asset,  which is being amortized over the life of
the related  debt in interest  expense.  At December  31,  2002,  ComEd had $630
million of forward starting interest rate swaps outstanding. These interest rate
swaps,  designated as cash flow hedges,  had a fair market value exposure of $52
million at December 31, 2002. As it remained  probable that the debt  issuances,
the  forecasted  future  transactions  these swaps were  hedging,  would  occur,
although  the  issuances  had been  delayed,  we  continued to account for these
interest rate swap  transactions  as hedges.  In connection with ComEd's January
22, 2003 issuance of $700 million in First Mortgage Bonds,  ComEd settled swaps,
in the aggregate notional amount of $550 million,  for a payment of $43 million,
which will be recorded as a regulatory  asset and amortized over the life of the
debt issuance.

     The notional  amount of  derivatives  does not  represent  amounts that are
exchanged by the parties and, thus, is 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


                                       118


contracts.  Additionally,  Exelon enters into certain energy-related derivatives
for trading or speculative purposes.

     During 2002 and 2001,  Generation  recognized  net losses of $6 million ($4
million,  net of income  taxes) and gains of $16 million  ($10  million,  net of
income taxes),  respectively,  relating to mark-to-market adjustments of certain
non-trading  power  purchase  and  sale  contracts  pursuant  to SFAS  No.  133.
Mark-to-market  adjustments on non-trading power purchase and sale contracts are
reported in fuel and purchased power and  mark-to-market  adjustments on trading
activities are reported as Operating Revenues in the Consolidated  Statements of
Income.  During 2002 and 2001,  Generation  recognized net losses aggregating $9
million ($6 million,  net of income taxes) and net gains aggregating $14 million
($10 million,  net of income taxes),  respectively,  relating to  mark-to-market
adjustments on derivative instruments entered into for trading purposes.  Exelon
Generation  commenced financial trading in the second quarter of 2001. Gains and
losses  associated with financial  trading are reported as Operating  Revenue in
the  Consolidated  Statements  of Income.  During 2002 and 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
2002, no amounts were reclassified from accumulated other  comprehensive  income
into earnings as a result of forecasted  financing  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.

     Enterprises  has  entered  into  a  limited  number  of  energy   commodity
derivative contracts in connection with its service of gas customers.  While the
majority of these  contracts  qualify as normal  purchases  and sales or as cash
flow hedges  under SFAS No. 133, $16 million was recorded as a reduction to fuel
expense as a result of  contracts  being  marked to market in 2002.  Of this $16
million,  $3 million was recorded upon contract  settlement  and $13 million was
recorded as a change in fair value prior to contract  settlement.  The offset to
this  $13  million  was  recorded  as an asset on the  balance  sheet  and it is
expected  that $11 million and $2 million  will  reverse as fuel expense in 2003
and 2004,  respectively.  At  December  31,  2002,  there was a net asset of $20
million on the balance sheet related to Enterprises'  mark-to-market  contracts.
The  remaining  $7 million of the  offset to this  asset was  recorded  in other
comprehensive  income and is expected to be  reclassified to earnings within the
next twelve  months.  Enterprises'  counterparties  in these  contracts  are all
investment  grade,  with  the  exception  of  Dynegy  Inc.  (Dynegy),   to  whom
Enterprises has $2 million of exposure.

     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.

     As of December 31, 2002,  $102 million of deferred net losses on derivative
instruments  in  accumulated  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 4 years.

     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


                                       119


represented  by the fair value of  contracts  at the  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.  Generation  has entered into payment  netting  agreements  or enabling
agreements  that  allow  for  payment  netting  with the  majority  of its large
counterparties,  which  reduce  Generation's  exposure to  counterparty  risk by
providing for the offset of amounts payable to the counterparty  against amounts
receivable from the counterparty.

     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, 2002
                                                -------------------------------------------------------------------
                                                                       Gross              Gross
                                                 Amortized        Unrealized         Unrealized           Estimated
                                                      Cost             Gains             Losses          Fair Value
- -------------------------------------------------------------------------------------------------------------------
                                                                                           
Equity securities                                 $  1,763        $       72       $      (482)         $     1,353
Debt securities
    Government obligations                             938                62                 --               1,000
    Other debt securities                              698                32               (30)                 700
- -------------------------------------------------------------------------------------------------------------------
Total debt securities                                1,636                94               (30)               1,700
- -------------------------------------------------------------------------------------------------------------------
Total available-for-sale securities               $  3,399        $      166       $      (512)         $     3,053
- -------------------------------------------------------------------------------------------------------------------

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


     Net  unrealized  losses of $346 million and $84 million were  recognized in
Accumulated Depreciation,  Regulatory Assets and Accumulated Other Comprehensive
Income in Exelon's  Consolidated  Balance  Sheets at December 31, 2002 and 2001,
respectively.

                                                 For the Years Ended December 31
                                                 -------------------------------
                                                 2002                       2001
- --------------------------------------------------------------------------------
Proceeds from sales                           $ 1,612                  $   1,624
Gross realized gains                               56                         76
Gross realized losses                             (86)                     (189)
- --------------------------------------------------------------------------------

     Net  realized  gains of $2  million  and $14  million  were  recognized  in
Accumulated  Depreciation and Regulatory Assets in Exelon's Consolidated Balance
Sheets at  December  31, 2002 and 2001,  respectively,  and $32 million and $127
million of net realized losses were recognized in Other Income and Deductions in
Exelon's  Consolidated  Income Statements for 2002 and 2001,  respectively.  The
available-for-sale securities held at December 31, 2002 have an average maturity
of six to seven years.  The cost of these securities was determined on the basis
of specific identification. See Note 11 - Nuclear


                                       120


Decommissioning  and Spent Fuel Storage for further  information  regarding  the
nuclear decommissioning trusts.


19. Commitments and Contingencies

Capital Commitments
     Exelon and British Energy,  Generation's  joint venture partner in AmerGen,
have each  agreed to provide up to $100  million to AmerGen at any time that the
Management Committee of AmerGen determines,  that in order to protect the public
health  and  safety  and/or  to comply  with NRC  requirements,  such  funds are
necessary to meet ongoing  operating  expenses or to safely maintain any AmerGen
plant.   Although  Exelon  does  not  anticipate  that  AmerGen  will  make  any
acquisitions  in 2003,  Exelon has  committed  to provide  AmerGen  with capital
contributions  equivalent  to 50%  of the  purchase  price  of any  acquisitions
AmerGen makes in 2003.
     Generation has a 70% interest in the Southeast Chicago Energy Project,  LLC
(Southeast Chicago), which owns a peaking facility in Chicago. Southeast Chicago
is obligated to make equity  distributions of $54 million over the next 20 years
to the party,  which is not affiliated with Generation,  that owns the remaining
30%  interest.  This  amount  reflects a return of that  party's  investment  in
Southeast Chicago. Generation has the right to purchase, generally at a premium,
and the other party has the right to require  Generation to purchase,  generally
at a discount, the 30% interest in Southeast Chicago.  Additionally,  Generation
may be required to purchase  the 30%  interest  upon the  occurrence  of certain
events, including Generation's failure to maintain an investment grade rating.


Nuclear Insurance
     The  Price-Anderson  Act limits the liability of nuclear reactor owners for
claims  that could  arise  from a single  incident.  As of January 1, 2003,  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 $300
million  and  the  remaining   $9.2  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 expired on August 1, 2002 but  existing
facilities,  including  those owned and operated by Generation,  remain covered.
The U.S. Congress has extended the provisions of the  Price-Anderson Act related
to commercial  facilities  through 2003. The extension was passed as part of the
Consolidated  Appropriations  Resolution,  2003,  which will be presented to the
President of the United States for his  signature.  The  extension  would affect
facilities  obtaining NRC operating  licenses in 2003.  Existing  facilities are
unaffected by the extension.
     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 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
that would be available.  Under the terms of the various  insurance  agreements,
Exelon  could be  assessed up to $124  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. The $3.2 billion maximum recovery limit is not applicable,  however,  in
the event of a "certified  act of terrorism"  as defined in the  Terrorism  Risk
Insurance  Act of 2002,  as a  result  of  government  indemnity.  Generally,  a
"certified  act of terrorism" is defined in the Terrorism  Risk Insurance Act to
be  any  act,  certified  by the  U.S.  government,  to be an  act of  terrorism
committed on behalf of a foreign person or interest.
     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.


                                       121


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. This limit would also
not apply in cases of  certified  acts of  terrorism  under the  Terrorism  Risk
Insurance Act as 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. 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  agreements  (PPAs) with Midwest  Generation,
LLC  (Midwest  Generation)  for the  purchase  of capacity  from its  coal-fired
stations through 2004.  Contracted  capacity and capacity  available through the
exercise  of an  annual  option  are  1,696  MWs and 3,949 MWs in 2003 and 2004,
respectively.
     The agreements also provide for the option to purchase 1,084 MWs of oil and
gas-fired capacity, and 857 MWs 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  after
December  31,  2001  through  December  31,  2014.  Under a January 1, 2003 PPA,
Generation  will  purchase  from  AmerGen  all of the  residual  energy from the
Clinton Nuclear Power Station (Clinton),  through December 31, 2003.  Currently,
the residual  output is  approximately  31% of the total  output of Clinton.  In
accordance  with the terms of the AmerGen  partnership  agreement,  the 2003 PPA
will be extended through the end of the AmerGen partnership agreement in 2006.



                                       122


     Exelon  has  a  long-term  supply  agreement  through  December  2022  with
Distrigas  of  Massachusetts,  LLC to  guarantee  physical gas supply to its New
England generating units. Under the agreement, prices are indexed to New England
gas markets. At December 31, 2002, 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:



                             Net Capacity       Power Only           Power Only Purchases from  Transmission Rights
                            Purchases (1)            Sales            AmerGen  Non-Affiliates         Purchases (2)
- -------------------------------------------------------------------------------------------------------------------
                                                                                         
2003                            $     589        $   2,606           $    280       $   1,722           $        86
2004                                  639            1,181                292             768                    93
2005                                  356              355                472             283                    84
2006                                  328               92                472             239                     3
2007                                  408               22                179             227                    --
Thereafter                          3,742                1              2,638             829                    --
- -------------------------------------------------------------------------------------------------------------------
Total                           $   6,062        $   4,257           $  4,333       $   4,068           $       266
- -------------------------------------------------------------------------------------------------------------------


(1)  On October 2, 2002,  Generation notified Midwest Generation of its exercise
     of  termination  options  under the  existing  Collins  Generating  Station
     (Collins) and Peaking Unit (Peaking) Purchase Power Agreements.  Generation
     exercised its  termination  options on 1,727 MWs in 2003 and 2004. In 2003,
     Generation  will take 1,778 MWs of option  capacity  under the  Collins and
     Peaking Unit  Agreements as well as 1,265 MWs of option  capacity under the
     Coal Generation  Purchase Power Agreement.  Net capacity  purchases in 2004
     include  3,474  MWs of  optional  capacity  from  Midwest  Generation.  Net
     Capacity  Purchases  also include  capacity sales to TXU under the purchase
     power  agreement  entered  into in  connection  with  the  purchase  of two
     generating  plants in April 2002,  which states that TXU will  purchase the
     plant output from 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 combined
     capacity of the two plants is 2,334 MWs.
(2)  Transmission  Rights Purchases  include  estimated  commitments in 2004 and
     2005 for  additional  transmission  rights that will be required to fulfill
     firm sales contracts.



                                       123


Commercial Commitments
     Exelon's  commercial  commitments  as of December  31,  2002,  representing
commitments  not  recorded on the balance  sheet but  potentially  triggered  by
future events,  including obligations to make payment on behalf of other parties
and financing arrangements to secure our obligations, are as follows:



                                                                                                  Expiration within
                                                        ------------------------------------------------------------
                                                                                                               2008
                                            Total         2003       2004-2005          2006-2007        and beyond
- -------------------------------------------------------------------------------------------------------------------
                                                                                           
Credit Facility (a)                    $    1,500    $   1,500        $     --          $      --         $       -
Letters of Credit (non-debt) (b)              111          106               5                 --                --
Letters of Credit (Long-Term Debt) (c)        456          305             151                 --                --
Insured Long-Term Debt (d)                    254           --              --                 --               254
Guarantees of Letters of Credit(e)            226          226              --                 --                --
Performance Guarantees (f)                    101           --              --                 --               101
Surety Bonds (g)                              521          329              57                  4               131
Energy Marketing Contract
    Guarantees (h)                            124          114              10                 --                --
Nuclear Insurance Guarantees (i)            1,380           --              --                 --             1,380
Lease Guarantees (j)                           13           --              --                  2                11
Preferred Securities (k)                      128           --              --                 --               128
Sithe New England Equity Guarantee (l)         38           38              --                 --                --
Guarantees of Long-Term Debt (m)               41            2              --                 --                39
- -------------------------------------------------------------------------------------------------------------------
Total                                  $    4,893    $   2,620        $    223          $       6         $   2,044
- -------------------------------------------------------------------------------------------------------------------


(a)  Credit Facility - Exelon, along with ComEd, PECO and Generation, maintain a
     $1.5 billion 364-day credit facility to support commercial paper issuances.
     At December 31, 2002, there were no borrowings against the credit facility.
     Additionally,  at December 31, 2002,  there was $948 million of  commercial
     paper outstanding.
(b)  Letters  of Credit  (non-debt)  - Exelon and  certain  of its  subsidiaries
     maintain  non-debt  letters of credit to provide credit support for certain
     transactions as requested by third parties.
(c)  Letters of Credit (Long-Term Debt) - Direct-pay letters of credit issued in
     connection  with  variable-rate  debt in order to provide  liquidity in the
     event  that it is not  possible  to  remarket  all of the debt as  required
     following  specific events,  including  changes in the basis of determining
     the interest rate on the debt.
(d)  Insured Long-Term Debt - Borrowings that have been credit-enhanced  through
     the  purchase  of  insurance  coverage  equal to the  amount  of  principal
     outstanding plus interest.
(e)  Guarantees of letters of credit - Guarantees  issued to provide support for
     letters of credit as required by third parties.  These  guarantees could be
     called upon only in the event of non-payment by a subsidiary.
(f)  Performance  Guarantees  -  Guarantees  issued  to ensure  execution  under
     specific  contracts.
(g)  Surety Bonds - Guarantees  issued related to contract and commercial surety
     bonds, excluding bid bonds.
(h)  Energy  Marketing  Contract   Guarantees  -  Guarantees  issued  to  ensure
     performance under energy commodity contracts.
(i)  Nuclear  Insurance  Guarantees - Guarantees of nuclear  insurance  required
     under the Price-Anderson Act. $1.1 billion of this total exposure is exempt
     from the $4.5 billion PUHCA guarantee limit by SEC rule.
(j)  Lease Guarantees - Guarantees issued to ensure payments on building leases.
(k)  Preferred  Securities  -  Guarantees  issued  to  guarantee  the  preferred
     securities  of the  subsidiary  trusts  of PECO.  See  Note 16 -  Preferred
     Securities of Subsidiaries for further information.
(l)  Sithe  New  England  Equity  Guarantee-  See  Note  3  -  Acquisitions  and
     Dispositions for further  information on the $38 million  guarantee.  After
     construction of the SBG facilities is complete, Exelon could be required to
     guarantee up to an  additional  $42 million in order to ensure that the SBG
     facilities  have adequate  funds  available for potential  outage and other
     operating costs and requirements.
(m)  Guarantees  of Long-Term  Debt - Issued to guarantee  payment of subsidiary
     debt.

Unconsolidated  Equity  Investments.  Generation  is a 49.9%  owner of Sithe and
accounts for the investment as an unconsolidated  equity  investment.  The Sithe
New  England  purchase  did not  affect  the  accounting  for Sithe as an equity
investment.  Separate  from the Sithe New  England  transaction,  Generation  is
subject to a Put and Call  Agreement  (PCA) that gives  Generation  the right to
purchase  (Call)  the  remaining  50.1% of Sithe,  and  gives  the  other  Sithe
shareholders  the right to sell (Put) their interest to  Generation.  If the Put
option is exercised, Generation has the obligation to complete the purchase.



                                       124


     The  PCA  originally   provided  that  the  Put  and  Call  options  became
exercisable as of December 18, 2002 and expired in December 2005. However,  upon
Apollo Energy,  LLC's (Apollo)  purchase of Vivendi's  34.2% ownership and Sithe
management's  1% share,  Apollo  agreed to delay the  effective  date of its Put
right until June 1, 2003 and, if certain  conditions are met, until September 1,
2003.  There are also  certain  events  that could  trigger  Apollo's  Put right
becoming effective prior to June 1, 2003 including Exelon being downgraded below
investment  grade by  Standard  and Poor's  Rating  Group or  Moody's  Investors
Service,  Inc.,  a stock  purchase  agreement  between  Exelon and Apollo  being
executed and subsequently terminated,  or the occurence of any event of default,
other  than  a  change  of  control,  under  certain  Exelon  or  Apollo  credit
agreements.   Depending  on  the  triggering   event,   Apollo's  put  price  of
approximately  $460 million,  growing at a market rate of interest,  needs to be
funded  within  18 or 30 days of the Put  being  exercised.  There  have been no
changes to the Put and Call terms with  respect to  Marubeni's  remaining  14.9%
interest.
     The delay in the  effective  date of Apollo's  Put right  allows  Exelon to
explore a further restructuring of our investment in Sithe. Exelon is continuing
discussions with Apollo and Marubeni regarding  restructuring  alternatives that
are  designed  in part to  resolve  Exelon's  ownership  limitations  of Sithe's
qualifying   facilities.   Exelon  would  hope  to  implement   any   additional
restructuring  of its Sithe  investment  in 2003. If Exelon is  unsuccessful  in
restructuring the Sithe  transaction,  Exelon will proceed to implement measures
to  address  the  ownership  of the  qualified  facilities  as  well  as  divest
non-strategic assets, for which the financial outcome is uncertain.
     If Generation  exercises  its option to acquire the  remaining  outstanding
common  stock in Sithe,  or if all the  other  stockholders  exercise  their Put
Rights,  the purchase price for Apollo's  35.2%  interest will be  approximately
$460  million,  growing  at a market  rate of  interest.  The  additional  14.9%
interest  will be valued at fair market value subject to a floor of $141 million
and a ceiling of $290 million.
     If Generation  increases its ownership in Sithe to 50.1% or more, Sithe may
become a consolidated  subsidiary and our financial  results may include Sithe's
financial  results  from the date of purchase.  At December 31, 2002,  Sithe had
total assets of $2.6 billion and total debt of $1.3  billion.  This $1.3 billion
includes  $624  million of  subsidiary  debt  incurred  primarily to finance the
construction  of six new  generating  facilities,  $461 million of  subordinated
debt,  $103  million of line of credit  borrowings,  $43  million of the current
portion of long-term debt and capital leases, $30 million of capital leases, and
excludes  $453  million of  non-recourse  project debt  associated  with Sithe's
equity investments.  For the year ended December 31, 2002, Sithe had revenues of
$1.0  billion.  As of December 31, 2002,  Generation  had a $449 million  equity
investment in Sithe.


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 that
are considered  hazardous  under  environmental  laws.  Exelon has identified 71
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,  2002 and 2001,  Exelon had  accrued  $156  million for
environmental  investigation and remediation  costs,  including $125 million and
$127 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, 2002 and 2001 is $97 million and
$100  million,  respectively,  that  has  been  recorded  on  a  discount  basis
(reflecting  discount  rates of 5.0% and 5.5%,  respectively).  Such  estimates,
reflecting  the effects of a 2.5% and 3.0%  inflation rate before the effects of
discounting  were $138  million and $154  million at December 31, 2002 and 2001,
respectively.


                                       125


Exelon  anticipates  that  payments  related  to  the  discounted  environmental
investigation and remediation costs,  recorded on an undiscounted  basis, of $76
million will be incurred for the five-year  period  through 2007.  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.

Leases

     Minimum  future  operating  lease  payments,  including  lease payments for
vehicles, real estate, computers, rail cars and office equipment, as of December
31, 2002 were:

- ---------------------------------------------------------------------------
2003                                                               $     77
2004                                                                     59
2005                                                                     58
2006                                                                     54
2007                                                                     49
Remaining years                                                         598
- ---------------------------------------------------------------------------
Total minimum future lease payments                                $    895
- ---------------------------------------------------------------------------

     Rental expense under operating leases totaled $85 million,  $75 million and
$41 million in 2002, 2001 and 2000, respectively.


Litigation
     Securities  Litigation.  Between  May 8 and June 14,  2002,  several  class
action  lawsuits were filed in the Federal  District Court in Chicago  asserting
nearly  identical  securities  law  claims  on behalf  of  purchasers  of Exelon
securities  between April 24, 2001 and September  27, 2001 (Class  Period).  The
complaints  allege that Exelon  violated  Federal  securities  laws by issuing a
series  of  materially  false and  misleading  statements  relating  to its 2001
earnings  expectations  during  the Class  Period.  The court  consolidated  the
pending cases into one lawsuit and has appointed two lead  plaintiffs as well as
lead counsel.
     On October 1, 2002, the plaintiffs filed a consolidated  amended complaint.
In addition to the original claims,  this complaint contains  allegations of new
facts and  contains  several new  theories of  liability.  Exelon  believes  the
lawsuit is without merit and is vigorously contesting this matter.

     FERC Municipal  Request for Refund.  Three of ComEd's  wholesale  municipal
customers  filed a complaint  and request  for refund with 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.  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.  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.  The Federal  circuit  court has stayed the  proceedings
pending settlement negotiations among the parties.

     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 judgment that their rights under their contracts with ComEd were not
affected by the amendment.  On November 25, 2002, the court granted  developers'

                                       126



motions  for summary  judgment.  The judge also  entered a permanent  injunction
enjoining  ComEd  from  refusing  to pay the retail  rate on the  grounds of the
amendment,  and  Illinois  from  denying  ComEd a tax  credit on account of such
purchases. ComEd and Illinois have each appealed the ruling. ComEd believes that
it did not breach the  contracts  in question  and that the damages  claimed far
exceed any loss that any project incurred by reason of its ineligibility for the
subsidized  rate.  ComEd  intends to  prosecute  its appeal and defend each case
vigorously.

     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 million in various  damages.  On November
20, 2001,  the District Court entered an amended final judgment that included an
award of both  pre-judgment  and  post-judgment  interests,  costs,  and medical
monitoring  expenses  that total $43 million.  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.  Cotter  appealed  these
judgments to the Tenth Circuit Court of Appeals. Cotter is vigorously contesting
the award.
     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 Exelon's 2001 corporate  restructuring,  the  responsibility  to
indemnify  Cotter for any liability  related to these matters was transferred by
ComEd to Generation.
     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),  has submitted a draft
feasibility  study addressing  options for remediation of 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  range  from $0  million  to $87
million.  Once a remedy is selected,  it is expected that the PRPs will agree on
an allocation of  responsibility  for the costs.  Until an agreement is reached,
Generation cannot predict its share of the costs.

     Raytheon Arbitration.  In March 2001, two subsidiaries of Sithe New England
Holdings  (now  Exelon New England  Holdings)  brought an action in the New York
Supreme Court against Raytheon Corporation (Raytheon) relating to its failure to
honor its guaranty with respect to the  performance of the Mystic and Fore River
projects,  as a  result  of the  abandonment  of  the  projects  by the  turnkey
contractor.  In a related proceeding,  in May 2002, Raytheon submitted claims to
the  International  Chamber of Commerce Court of Arbitration  seeking  equitable
relief and damages for alleged  owner caused  performance  delays in  connection
with  the  Fore  River  Power  Plant  Engineering,  Procurement  &  Construction
Agreement (EPC Agreement). The EPC Agreement,  executed by a Raytheon subsidiary
and  guaranteed  by  Raytheon,  governs the design,  engineering,  construction,
start-up,  testing  and  delivery  of


                                       127


an 800-MW  combined-cycle  power  plant  in  Weymouth,  Massachusetts.  Raytheon
recently  amended  its claim and now seeks 141 days of  schedule  relief  (which
would  reduce  Raytheon's   liquidated  damage  payment  for  late  delivery  by
approximately  $25.4 million) and additional damages of $15.6 million.  Raytheon
also has asserted a claim for loss of efficiency and productivity as a result of
an  alleged  constructive  acceleration,  for  which  a claim  has not yet  been
quantified. Generation believes the Raytheon assertions are without merit and is
vigorously  contesting these claims.  Hearings by the  International  Chamber of
Commerce Court of Arbitration with respect to liability were held in January and
February 2003. A decision on liability is expected to be issued in May 2003 and,
if  necessary,  additional  hearings  will be held on damages in May and June of
2003.

     Real Estate Tax Appeals.  Generation is involved in tax appeals regarding a
number  of its  nuclear  facilities,  Limerick  Generating  Station  (Montgomery
County,  PA),  Peach Bottom Atomic Power  Station  (York  County,  PA), and Quad
Cities Station (Rock Island County,  IL). Generation is also involved in the tax
appeal for Three Mile Island (Dauphin County,  PA) through  AmerGen.  Generation
does not  believe  the  outcome of these  matters  will have a material  adverse
effect on Generation's results of operations or financial condition.

     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.


Credit Contingencies
     Generation is a counterparty to Dynegy in various energy  transactions.  In
early July 2002,  the credit  ratings of Dynegy  were  downgraded  by two credit
rating agencies to below investment  grade. As of December 31, 2002,  Generation
had a net receivable  from Dynegy of  approximately  $3 million,  and consistent
with the terms of the existing credit  arrangement,  has received  collateral in
support of this  receivable.  Generation  also has credit risk  associated  with
Dynegy through  Generation's equity investment in Sithe. Sithe is a 60% owner of
the Independence  generating  station,  a 1,040-MW gas-fired  qualified facility
that has an energy-only  long-term tolling agreement with Dynegy, with a related
financial  swap  arrangement.  As of December 31, 2002,  Sithe had recognized an
asset on its balance  sheet  related to the fair market  value of the  financial
swap agreement with Dynegy that is marked-to-market  under the terms of SFAS No.
133. If Dynegy is unable to fulfill the terms of this agreement,  Sithe would be
required to impair this financial swap asset.  We estimate,  as a 49.9% owner of
Sithe, that the impairment would result in an after-tax  reduction of our equity
earnings of approximately $10 million.
     In addition to the  impairment of the financial  swap asset,  if Dynegy was
unable to fulfill its  obligations  under the financial  swap  agreement and the
tolling agreement,  we would likely incur a further  impairment  associated with
the Independence plant. Depending upon the timing of Dynegy's failure to fulfill
its obligations and the outcome of any restructuring  initiatives,  Exelon could
realize an after-tax  charge of between $0 and $130  million.  In the event of a
sale of our  investment in Sithe to a third party,  proceeds from the sale could
be negatively  impacted by approximately $120 million,  which would represent an
after-tax loss of approximately $65 million.
     Additionally,  the  future  economic  value of  AmerGen's  purchased  power
arrangement  with Illinois  Power, a subsidiary of Dynegy,  could be impacted by
events related to Dynegy's financial condition.


                                       128


20. Segment Information

     Exelon  evaluates the  performance  of its business  segments  based on Net
Income.

     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:
2002            $    10,457      $    6,858      $    2,033     $        346      $      (4,739)       $     14,955
2001                 10,171           6,826           2,292              341             (4,712)             14,918
2000                  4,511           3,274           1,395               --             (1,681)              7,499
Intersegment Revenues:
2002            $        76      $    4,226      $       97     $        341      $      (4,740)       $         --
2001                     94           4,102             179              337             (4,712)                 --
2000                     24           1,185             472               --             (1,681)                 --
Depreciation and Amortization:
2002            $       978      $      276      $       55     $         31      $           --       $      1,340
2001                  1,081             282              69               17                  --              1,449
2000                    297             123              35                3                  --                458
Operating Expenses:
2002            $     7,597      $    6,349      $    2,047     $        402      $      (4,739)       $     11,656
2001                  7,578           5,954           2,369              371             (4,716)             11,556
2000 (a)              3,009           2,833           1,473              324             (1,667)              5,972
Interest Expense:
2002            $       854      $       75      $       14     $         74      $         (51)       $        966
2001                    973             115              37              133               (151)              1,107
2000                    522              41              17               63                (29)                614
Income Taxes:
2002            $       765      $      217      $       69     $        (53)     $           --       $        998
2001                    703             327            (43)              (56)                 --                931
2000                    421             160            (52)             (190)                 --                339
Net Income/(Loss):
2002            $     1,268      $      400      $    (178)     $        (50)     $           --       $      1,440
2001                  1,022             524            (85)              (33)                 --              1,428
2000 (a)                587             260            (94)             (167)                 --                586
Capital Expenditures:
2002            $     1,041      $      990      $       44     $         75      $           --       $      2,150
2001                  1,105             858              61               64                  --              2,088
2000                    367             288              70               27                  --                752
Total Assets:
2002            $    26,550      $   11,007      $    1,297     $     (1,376)     $           --       $     37,478
2001                 26,365           8,145           1,743           (1,509)                 --             34,744
- -------------------------------------------------------------------------------------------------------------------


(a)  Includes non-recurring items of $276 million ($177 million after income
taxes) for Merger-related expenses in 2000.


                                       129


     Equity in earnings of AmerGen and Sithe of $88 million,  $90 million and $4
million for 2002, 2001 and 2000, respectively,  are included in Generation's Net
Income.  Equity in earnings (losses) of communications  joint ventures and other
investments  of $3 million,  $(19) million and $(45) million for 2002,  2001 and
2000, respectively,  are included in Enterprises' Net Income. Equity in earnings
(losses) of affordable housing investments of $(11) million and $(9) million for
2002 and 2001, respectively, are included in Corporate's Net Income.


21. Related Party Transactions

     Exelon's  financial  statements  reflect  related-party  transactions  with
unconsolidated affiliates as reflected in the tables below.




                                                                                   For the Years Ended December 31,
                                                                          -----------------------------------------
                                                                            2002             2001              2000
- -------------------------------------------------------------------------------------------------------------------
                                                                                              
Purchased Power from AmerGen (1)                                     $       273     $        57          $      52
Interest Income from AmerGen (2)                                               2              --                 --
Interest Income from Sithe (3)                                                --               2                 --
Interest Expense to Sithe (4)                                                  2              --                 --
Services Provided to AmerGen (5)                                              70              80                 32
Services Provided to Sithe (6)                                                 1              --                 --
Services Provided by Sithe (7)                                                13              --                 --
- ------------------------------------------------------------------------------------------------------------------





                                       130





                                                                    December 31,
                                             -----------------------------------
                                               2002                         2001
- --------------------------------------------------------------------------------
Net Receivable from AmerGen (1,2,3)      $       39                    $      44
Net Payable to Sithe (4,5)                        7                           --
Note Payable to Sithe (7)                       534                           --
- --------------------------------------------------------------------------------
(1)  Generation  has entered into PPAs dated  December 18, 2001 and November 22,
     1999 with AmerGen.  Under the 2001 PPA,  Generation  has agreed to purchase
     from  AmerGen all the energy  from Unit No. 1 at Three Mile Island  Nuclear
     Station from January 1, 2002 through December 31, 2014. Under the 1999 PPA,
     Generation  agreed to purchase from AmerGen all of the residual energy from
     Clinton  Nuclear  Power  Station   (Clinton)  through  December  31,  2002.
     Currently,  the residual output is approximately 31% of the total output of
     Clinton. In accordance with the terms of the AmerGen partnership agreement,
     the 1999 PPA will be extended  through  the end of the AmerGen  partnership
     agreement in 2006.
(2)  In February 2002,  Generation  entered into an agreement to loan AmerGen up
     to $75 million at an interest  rate equal to the 1-month  London  Interbank
     Offering Rate plus 2.25%. In July 2002, the limit of the loan agreement was
     increased  to $100  million and the  maturity  date was extended to July 1,
     2003. As of December 31 2002, the outstanding principal balance of the loan
     was $35 million.
(3)  In  August  2001,  Exelon  loaned  Sithe,  an  equity  method  investee  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  borrowings,  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.
(4)  Under  the terms of the  agreement  to  acquire  Sithe  New  England  dated
     November 1, 2002,  Generation issued a $534 million note to be paid in full
     on June 18,  2003 to Sithe.  The note bears  interest  at the rate equal to
     LIBOR plus 0.875%. Interest accrued on the note as of December 31, 2002 was
     $2 million.
(5)  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 AmerGen with 90 days notice.  Generation  is
     compensated  for these  services in an amount  agreed to in the work order,
     which  is not  less  than  the  higher  of its  fully  allocated  cost  for
     performing each service or the market price for such service.
(6)  Under a service  agreement  dated  December 18, 2000,  Generation  provides
     certain engineering and environmental  services for fossil facilities owned
     by Sithe and for certain developmental projects.  Generation is compensated
     for these  services in an amount agreed to in the work order,  but not less
     than the higher of fully  allocated  costs for performing  such services or
     the market price.
(7)  Under  a  service   agreement  dated  December  18,  2000,  Sithe  provides
     Generation  certain  fuel  and  project  development  services.   Sithe  is
     compensated  for these  services in the amount agreed to in the work order,
     but not less than the higher of fully  allocated  costs for performing such
     services or the market price.

22.      Quarterly Data (Unaudited)

     The  data  shown  below  include  all  reclassifications,  including  those
required upon the adoption of EITF 02-3, which Exelon considers  necessary for a
fair presentation of such amounts:




                                                                              Income Before the
                                                                   Cumulative Effect of Changes
                         Operating Revenues     Operating Income       in Accounting Principles          Net Income
                         ------------------     ----------------       ------------------------      --------------
                             2002      2001      2002       2001             2002          2001      2002      2001
- -------------------------------------------------------------------------------------------------------------------
Quarter ended:
                                                                                    
March 31                  $ 3,357   $ 3,823    $  605     $  889         $    238      $    387   $     8   $   399
June 30                     3,519     3,616       813        792              485           315       485       315
September 30                4,370     4,185     1,000        912              551           376       551       376
December 31                 3,709     3,293       882        769              397           338       397       338
- -------------------------------------------------------------------------------------------------------------------


                                       131






                                                                        Earnings per Basic Share
                                                   Average Shares          Before the Cumulative       Earnings per
                                                Basic Outstanding              Effect of Changes        Basic Share
                                                    (in millions)       in Accounting Principles         Net Income
                                                    -------------       ------------------------     --------------
                                                 2002       2001           2002            2001     2002       2001
- -------------------------------------------------------------------------------------------------------------------
Quarter ended:
                                                                                          
March 31                                          321        320         $  0.74       $   1.21   $ 0.02    $  1.25
June 30                                           322        321            1.50           0.98     1.50       0.98
September 30                                      323        321            1.71           1.17     1.71       1.17
December 31                                       323        321            1.23           1.05     1.23       1.05
- -------------------------------------------------------------------------------------------------------------------

                                                                     Earnings per Diluted Share
                                                  Average Shares          Before the Cumulative        Earnings per
                                            Diluted Outstanding               Effect of Changes       Diluted Share
                                                   (in millions)        in Accounting Principles         Net Income
                                                   -------------        ------------------------     --------------
                                                 2002       2001             2002          2001      2002      2001
- -------------------------------------------------------------------------------------------------------------------
Quarter ended:
March 31                                          323        324         $  0.73       $   1.19   $ 0.02    $  1.23
June 30                                           324        324            1.50           0.97     1.50       0.97
September 30                                      324        323            1.70           1.16     1.70       1.16
December 31                                       325        322            1.22           1.05     1.22       1.05
- -------------------------------------------------------------------------------------------------------------------


     The following table presents the New York Stock Exchange - Composite Common
Stock Prices and dividends by quarter on a per share basis:



                                                              2002                                             2001
                        ------------------------------------------       ------------------------------------------
                           Fourth      Third     Second      First          Fourth      Third     Second      First
                          Quarter    Quarter    Quarter    Quarter         Quarter    Quarter    Quarter    Quarter
- -------------------------------------------------------------------------------------------------------------------
                                                                                   
High Price                $ 53.06    $ 52.83    $ 56.99    $ 53.88        $  48.69   $  67.65   $  70.26   $  69.75
Low Price                   42.38      37.85      50.10      45.90           39.65      38.75      62.10      53.60
Close                       52.77      47.50      52.30      52.97           47.88      44.60      64.12      65.60
Dividends                    0.44       0.44       0.44       0.44            0.43       0.42       0.42       0.55 (a)
- -------------------------------------------------------------------------------------------------------------------

(a)  The first quarter dividend in 2001 was a pro rata dividend. Unicom and PECO
     each paid their  shareholders  pro rata, per diem dividends from their last
     regular  dividend dates through October 19, 2000. The first quarter covered
     the 119-day  period from the date of the Merger,  through the  February 15,
     2001 record date.

23.      Subsequent Events

         On January 22, 2003,  ComEd issued $350 million of 3.70% First Mortgage
Bonds,  due on February 1, 2008 and $350 million of 5.875% First Mortgage Bonds,
due on February 1, 2033.  These bond proceeds  were used to refinance  long-term
debt that had been retired during the third and fourth quarters of 2002. As part
of these bond issuances,  ComEd settled various forward  starting  interest rate
swaps,  for $43  million,  which  will be  recorded  as a  regulatory  asset and
amortized over the life of the debt issuance.
         On January 31, 2003,  ComEd  called $236 million of its First  Mortgage
Bonds at a redemption  price of 103.86% of the  principal  amount,  plus accrued
interest to the March 18, 2003  redemption  date.  The bonds,  which  carried an
interest  rate of 8.375% and had a  maturity  date of  February  15,  2023,  are
expected to be refinanced with long-term debt.
         On February 14, 2003,  ComEd called $200 million of its Trust Preferred
securities at a redemption price of 100% of the principal  amount,  plus accrued
interest to the March 20, 2003 redemption date. The preferred securities,  which
carried an interest rate of 8.48% and had a maturity date of September 30, 2035,
are expected to be refinanced with trust preferred securities.



                                       132


     On February 20, 2003, ComEd entered into separate  agreements with the City
of Chicago (City) and with Midwest  Generation  (Midwest  Agreement).  Under the
terms of the agreement  with the City,  ComEd will pay the City $60 million over
ten years and be relieved of a  requirement,  originally  transferred to Midwest
Generation  upon the sale of ComEd's fossil  stations in 1999, to build a 500-MW
generation  facility.  Under  the terms of the  Midwest  Agreement,  ComEd  will
receive from Midwest Generation $36 million over ten years, $22 million of which
was received on February 20, 2003, to relieve  Midwest  Generation's  obligation
under the fossil sale  agreement.  Midwest  Generation will also assume from the
City a  Capacity  Reservation  Agreement  which the City had  entered  into with
Calumet Energy Team, LLC (CET),  that is effective through June 2012. ComEd will
reimburse  the City for any  nonperformance  by  Midwest  Generation  under  the
Capacity Reservation Agreement and will pay approximately $2 million for amounts
owed to CET by the City at the time the agreement is executed. The net effect of
the  settlement  to  ComEd  will be  amortized  over the  remaining  life of the
franchise agreement with the City.



                                       133