SEC FILE NO. 70-7727
                             SEC FILE NO. 70-8593
                             SEC FILE NO. 70-9793
                             SEC FILE NO. 70-9941


                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, DC 20549



                             CERTIFICATE PURSUANT TO

                                     RULE 24

                            OF PARTIAL COMPLETION OF

                                  TRANSACTIONS



                                FirstEnergy Corp.



------------------------------------------
                                          :
      In the matter of                    :
      FirstEnergy Corp.                   :     Certificate Pursuant
                                          :     to Rule 24 of Partial
                                          :     Completion of
                                          :     Transactions
      SEC File No. 70-7727                :
      SEC File No. 70-8593                :
      SEC File No. 70-9793                :
      SEC File No. 70-9941                :
      (Public Utility Holding Company Act :
      of 1935)                            :
------------------------------------------


TO THE MEMBERS OF THE SECURITIES AND EXCHANGE COMMISSION:

      In August 2000, FirstEnergy Corp.  (FirstEnergy) entered into an agreement
to merge with GPU, Inc., (GPU) under which  FirstEnergy would acquire all of the
outstanding shares of GPU, Inc.'s common stock for approximately $4.5 billion in
cash and FirstEnergy  common stock.  The merger became  effective on November 7,
2001 and is being accounted for by the purchase  method.  As of November 7, 2001
GPU merged with and into  FirstEnergy  and ceased its separate  existence.  This
filing  includes  the  activity for the period April 1 through June 30, 2002 for
FirstEnergy  Generation  Corp.  (FirstEnergy  Generation)  which  is  an  exempt
wholesale generator (EWG).

      The undersigned,  FirstEnergy  hereby certifies pursuant to Rule 24 of the
Rules and Regulations  under the Public Utility Holding Company Act of 1935 (the
Act), that certain of the transactions proposed in the Applications, as amended,
filed in SEC File No. 70-7727,  70-8593, 70-9793 and 70-9941 respectively,  have
been carried out in accordance  with the  Commission's  Orders dated October 29,
2001,  December 19, 2000,  December 22, 1997,  November 16, 1995, June 14, 1995,
December 28, 1994, September 12, 1994, December 18, 1992, and June 26, 1990 with
respect to the transactions proposed in the Application, as amended, in SEC File
No. 70-7727,  and the Commission's  Orders dated December 26, 2000, December 22,
1997,  November 5, 1997,  March 6, 1996,  January 19, 1996 and July 6, 1995 with
respect to the transactions proposed in the Application, as amended, in SEC File
No. 70-8593, as follows.


1.    Guarantees Issued
      -----------------

      As  successor-by-merger to GPU, FirstEnergy assumed all obligations of GPU
under the following guarantees which were outstanding during the period April 1,
2002 through June 30, 2002:

      (a) Guaranty dated September 1, 1999 for up to $21.3 million in connection
with  the   conversion  of  a   construction   loan  to  a  term  loan  for  the
Termobarranquilla (TEBSA) project in Colombia. This guarantee expires four years
after the loan conversion date (September 2003).

                                       1



      (b)  Guarantee of the obligations of GPUI Colombia Ltd., and
International Power Advisors, Inc. (the Operators), both of which are
subsidiaries of GPU Power, Inc. (GPU Power), which is a wholly-owned
subsidiary of FirstEnergy, under the operations and maintenance agreement
(O&M Agreement) in the TEBSA project.  The liability of the Operators under
the O&M Agreement is $5.9 million.

      (c) Guaranty to General Electric Capital  Corporation of amounts up to the
lesser of six months average rent  (approximately  $8.1 million) or $10 million,
to the extent Lake Cogen, Ltd. fails to pay rent when due under the terms of the
project lease or chooses not to renew the lease after its initial  11-year term,
which  expires in August 2004.  Lake Cogen,  Ltd. is a former  subsidiary of GPU
International, Inc., which was sold by GPU to Aquila Energy Corporation (Aquila)
in  December  2000.  Aquila has  indemnified  FirstEnergy  for any losses  which
FirstEnergy may incur under this guaranty.

2.    Investments by FirstEnergy in Exempt Wholesale Generators
      ----------------------------------------------------------
      and Foreign Utility Companies, and Percentage of Equity Ownership
      -----------------------------------------------------------------

      Set forth  below is a summary of the  direct or  indirect  investments  as
defined  in SEC Rule  53(a)  by  FirstEnergy,  as of June  30,  2002 in EWGs and
foreign  utility  companies  (FUCOs),  as  well  as  the  percentage  of  equity
ownership.

                                       2




                             First      First      Owners not affiliated with
                            Energy's   Energy's %         FirstEnergy
                  FUCO     Investment   Equity     --------------------------
Associate          or      at 6/30/02   Owner-                        Type of
 Company          EWG        ($000)      ship      Name of Entity     Entity
---------         ----     ----------  -------     ---------------    ------

Empresa           EWG         29,603    50%     AFP Prevision BBV     Foreign
Guaracachi S.A.                                 AFP Futuro de Bolivia Foreign

Guaracachi        EWG         50,489*  100%     Not Applicable        N/A
America, Inc.

GPU Power, Inc.   EWG        150,618*  100%     Not Applicable        N/A

EI International  EWG          1,224*  100%     Not Applicable        N/A

GPUI Colombia,    EWG          1,560*  100%     Not Applicable        N/A
Ltda.

Midlands          FUCO        56,138    20%     Aquilla, Inc.         Domestic
Electricity plc
(Midlands)

Termobarranquilla EWG         92,004    29%     ABB Energy Ventures,  Foreign
S.A.                                             Inc.
                                                Lancaster Steel       Foreign
                                                Distral Group         Foreign
                                                 Corp. Electrica      Foreign
                                                 De la Costa
                                                 Atlantica

EI Barranquilla,  EWG         41,450*  100%     Not Applicable         N/A
Inc.

Barranquilla      EWG         43,965*  100%     Not Applicable         N/A
Lease Holdings,
Inc.

Los Amigos        EWG             12*  100%     Not Applicable         N/A
Leasing Company,
Ltd.

GPUI              EWG            N/A**  N/A     Not Applicable         N/A
International
Asia, Inc.

International
Power Advisors,
Inc.              EWG          3,962*  100%     Not Applicable          N/A

                                       3




                              First     First      Owners not affiliated with
                             Energy's  Energy's %         First Energy
                  FUCO     Investment   Equity     --------------------------
Associate          or      at 6/30/02   Owner-                       Type of
 Company          EWG        ($000)     ship       Name of Entity     Entity
---------         ----     ----------   -----      --------------     ------

Empresa
Distribuidora
Electrica
Regional,S.A.     FUCO       361,440   100%        Not Applicable      N/A

FE Generation
Corp.             EWG        682,939   100%        Not Applicable      N/A
                           ---------

Total Aggregate
Investment in
EWGs & FUCOs *            $1,222,124
                           =========

(*)  FirstEnergy's  aggregate  investment  does not include the items shown with
asterisks in order to avoid duplication.

(**)  Dissolved in June 2002.

      As of June 30, 2002, FirstEnergy also owned, directly or indirectly, a
100% interest in each of the following EWGs, in which its aggregate
investment did not exceed $10,000: GPU Power Ireland, Inc.; GPU Power
Philippines, Inc.; and Hanover Energy Corporation.  Austin Cogen Partners, LP
and Austin Cogen Corp. were dissolved during June 2002.

      In accordance with Orders dated July 6, 1995 and March 6, 1996 in SEC File
No.  70-8593,  and Orders  dated  October 29,  2001 in SEC File No.  70-9793 and
70-9941 and in  addition to the  reimbursement  agreements  described  in item 1
above, the following is reported:


1.    Financial Statements
      --------------------

      A  copy  of  FirstEnergy  Solutions  Corp.,  (FirstEnergy  Solutions)  GPU
Capital,  Inc.'s (GPU Capital) and GPU Power's  unaudited  Consolidated  Balance
Sheets as of June 30, 2002 and unaudited  Consolidated  Statements of Operations
for the twelve  months  ended  June 30,  2002 will be filed  separately  under a
request for confidential treatment pursuant to Rule 104(b).

      FirstEnergy Solutions is a wholly-owned subsidiary of FirstEnergy and is a
natural gas and power marketer in both the wholesale and retail markets.

      GPU Capital was incorporated to secure financing to prepay indebtedness of
certain  subsidiaries  of GPU  Electric,  Inc. (GPU  Electric),  and for working
capital purposes including investments and acquisitions.  A capital contribution
was made to GPU Capital of all of the issued and outstanding common stock of GPU
Electric,  which then  became a  wholly-owned  subsidiary  of GPU  Capital.  GPU
Capital is a wholly-owned subsidiary of FirstEnergy.

                                       4




      GPU Capital and GPU Electric  own and operate  electric  transmission  and
distribution  systems  outside the United States and will be referred to as "GPU
Electric."


2.    Investments in Exempt Entities
      ------------------------------
      In July 1999, GPU Electric  became the 100% owner  (formerly 50% owner) of
Avon Energy  Partners  Holdings,  Inc.  (Avon) by acquiring the  additional  50%
ownership interest for British pounds (BP) 452.5 million  (approximately US $714
million).  Accordingly, GPU Electric became the sole owner of Midlands' electric
distribution  and  contracting  businesses as well as  independent  power plants
worldwide.  The  acquisition was financed at that time through a US $250 million
equity  contribution,  the issuance of US $50 million of commercial paper by GPU
Capital,  and a two-year BP 245 million  (approximately  US $357 million) credit
agreement  entered into by EI UK Holdings (EI UK), a wholly owned  subsidiary of
GPU Electric.

      In March 2002,  FirstEnergy  announced  that it had  finalized  terms of a
joint venture agreement with Aquila, Inc. (formerly Utilicorp United) for Aqulla
to  acquire  partial  ownership  of Avon.  Accordingly,  on May 8,  2002  Aquila
acquired  a 79.9  percent  interest  in  Avon  for  approximately  $1.9  billion
including  the  assumption  of $1.7  billion of debt.  FirstEnergy  (through GPU
Electric) and Aquilla together own all of the outstanding shares of Avon through
a jointly owned  subsidiary,  Aquilla  Sterling  Holdings,  Inc. (ASH) with each
company having a 50 percent voting interest.  FirstEnergy's investment in ASH is
held by EI UK.

      In 1999, GPU Electric acquired Empresa  Distribuidora  Electrica Regional,
S.A. (Emdersa),  an Argentine holding company, for $375 million. The acquisition
was  financed at that time  through  the  issuance  of  commercial  paper by GPU
Capital and a $50 million capital contribution.

      All of the acquisition debt associated with FirstEnergy's ownership of the
above mentioned FUCOs has been retired.


3.    Description of Exempt Entities in Which There are Funds Invested
      ----------------------------------------------------------------

FirstEnergy Generation Corp.
----------------------------

      FirstEnergy  Generation,  incorporated  in October 2000, is a wholly owned
subsidiary of First Energy  Solutions.  FirstEnergy  Generation  operates fossil
fuel  plants  and a pumped  storage  plant,  most of which  is  leased  from the
FirstEnergy  Solutions companies and sells all of its output at wholesale prices
to FirstEnergy Solutions.

Empresa Guaracachi, S.A.
------------------------

      In July 1995, GPU Power,  through Guaracachi  America,  Inc. acquired from
the Bolivian Government a 50% interest in Empresa Guaracachi,  S.A.(EGSA).  EGSA
has  an  aggregate  capacity  of  338  MW of  natural  gas-fired  and  oil-fired
generation facilities located in Bolivia in and around the cities of Santa Cruz,
Sucre and Potosi which  represents  more than one-third of Bolivia's  generation
capacity.

                                       5




Termobarranquilla, S.A.
-----------------------

      In October 1995, GPU Power, through EI Barranquilla,  Inc., acquired a 29%
interest in  Termobarranquilla,  S.A.,  Empresa de Servicios  Publicos  (TEBSA).
TEBSA has an  aggregate  capacity of 890 MW of gas-fired  generation  facilities
located near Barranquilla,  Colombia.  Electricity generated by these facilities
is sold to Corporacion  Electrica de la Costa  Atlantica under a long-term (20.5
years) contract.

Barranquilla Lease Holdings, Inc. and Los Amigos Leasing Company, Ltd.
----------------------------------------------------------------------

      Barranquilla Lease Holdings,  Inc., a subsidiary of GPU Power, through its
wholly-owned  subsidiary Los Amigos Leasing Company,  Ltd.  (Leaseco),  owns and
leases to TEBSA equipment in generation  facilities  constructed and operated by
TEBSA.  The lease  provides for TEBSA to make monthly lease  payments to Leaseco
through September 2011.

Midlands
--------

      Midlands distributes electricity to 2.3 million customers in England in an
area with a population of five million.  Midlands also owns an independent power
production business that generates electricity in England and internationally.

Emdersa
-------

      Emdersa  owns three  electric  distribution  companies  that  serve  three
provinces  in  northwest  Argentina.  The  three  distribution  companies  serve
approximately  335,000 customers throughout a service territory of approximately
124,300  square  miles.  The  provinces  have a total  population  of about  1.5
million.


4.    Services Obtained From Associated Companies
      -------------------------------------------

      FirstEnergy  Generation received  administrative and construction services
from associate companies  (primarily  FirstEnergy Service Company) in the amount
of  $16,773,456  for the three  months ended June 30,  2002.  GPU Service,  Inc.
provided  administrative services to GPU Power and GPU Electric in the amount of
$265,302 and $247,507 respectively,  for the three months ended June 30, 2002 in
support of operations and management activities.


5.    Services Provided to Associated Companies
      -----------------------------------------

      A description of services provided by FirstEnergy Generation and GPU Power
to  associate  companies  during the period  April 1, 2002 through June 30, 2002
will be filed separately  under a request for confidential  treatment under Rule
104(b). GPU Electric did not provide any services to associate  companies during
this reporting period.

      In accordance  with the  Commission's  Order dated November 5, 1997 in SEC
File No.  70-8593,  and the Order dated October 29, 2001 in SEC File No. 70-9793
and 70-9941 the following is reported:

                                       6




a)  FirstEnergy's   aggregate  investment  includes  all  amounts  invested,  or
committed  to be  invested,  in foreign  utility  companies  (FUCOs)  and exempt
wholesale   generators  (EWGs),  for  which  there  is  recourse,   directly  or
indirectly,  to  the  registered  holding  company.  Accordingly,  FirstEnergy's
aggregate investment as of June 30, 2002 is as follows:

                                                      (In Thousands)
FUCOs                                                 --------------
-----

Midlands Electricity plc                              $      56,138
Emdersa                                                     361,440
                                                          ---------
      Subtotal                                              417,578
                                                          ---------

EWG
---

FE Generation Corp.                                   $     682,939
Termobarranquilla, S.A.                                      92,004
Empresa Guaracachi, S.A.                                     29,603
                                                          ---------
      Subtotal                                              804,546
                                                          ---------
      Aggregate Investment in FUCOs and EWGs          $   1,222,124
                                                          =========

b) As of June 30,2002  FirstEnergy's  Aggregate Investment in FUCOs and EWGs (in
thousands) is $1,222,124.

Aggregate Investment as a Percentage of FirstEnergy and Subsidiary Companies:
----------------------------------------------------------------------------

Total capitalization                $ 22,469,054                   5.4%
Net utility plant                   $ 12,483,929                   9.8%
Total consolidated assets           $ 34,279,588                   3.6%
Market value of common equity       $  9,935,099                  12.3%

c)   FirstEnergy and Subsidiary Companies Consolidated Capitalization Ratios
as of June 30, 2002:

                                       Amount (000's)                %
                                       --------------                -

Common equity                       $  7,565,454                    33.7
Cumulative preferred stock               569,474                     2.5
Subsidiary-obligated mandatorily
  redeemable preferred securities        529,658                     2.4
Subsidiary-obligated trust
  preferred securities                       -                        -
Long-term debt                        13,149,059                    58.5
Notes payable                            655,409                     2.9
                                     -----------                   -----

      Total capitalization          $ 22,469,054                   100.0%
                                     ===========                   =====

d) Market-to-book  ratio of FirstEnergy and Subsidiary Companies common stock at
June 30, 2002:

Closing Market Price per Share                                  $  33.38
Book Value per Share                                            $  25.72
Market-to Book Ratio of Common Stock                               129.8%

                                       7




e)   Analysis of Growth in Retained  Earnings for  FirstEnergy  and Subsidiary
Companies:

                                                                (In Thousands)
                                                                --------------

Retained Earnings as of  6/30/02                                  $1,652,006
Retained Earnings as of 12/31/01                                   1,521,805
                                                                   ---------
Growth in Retained Earnings                                       $  130,201
                                                                   =========

Analysis of Growth in Retained Earnings:
---------------------------------------

Income contribution from regulated utility companies              $  430,671
Income contribution from FUCOs/EWGs                                   59,340
Income contribution from all other companies                         (38,360)
FirstEnergy Holding and Service companies                           (101,848)
Cash dividends declared on common stock                             (219,602)
                                                                    --------
Growth in Retained Earnings                                       $  130,201
                                                                   ==========


f) Statements of Operations for the period ended June 30, 2002 for the following
Project Parents and Exempt Entities will be filed separately under a request for
confidential treatment under Rule 104 (b):

               Termobarranquilla, S.A.
               GPUI Colombia, Ltda.
               Empresa Guaracachi, S.A.
               FirstEnergy Generation Corp.
               GPU International Australia Pty., Ltd.
               Emdersa
               Midlands Electricity plc

                                       8




                                    SIGNATURE

PURSUANT TO THE  REQUIREMENTS OF THE PUBLIC UTILITY HOLDING COMPANY ACT OF 1935,
THE  UNDERSIGNED  COMPANY HAS DULY CAUSED THIS  CERTIFICATE  TO BE SIGNED ON ITS
BEHALF BY THE UNDERSIGNED THEREUNTO DULY AUTHORIZED.

                                       FirstEnergy Corp.


                                       By:/s/ Harvey L. Wagner
                                          --------------------
                                       Harvey L. Wagner
                                       Vice President, Controller
                                       and Chief Accounting Officer


Date: August 29, 2002

                                       9