**Exhibit
21**


**TXU
CORP.**


**SUBSIDIARY
HIERARCHY**


**Effective
12/31/2004**





**State
      or Country****of
      Incorporation****TXU
      Corp.**
    TexasTXU
      US Holdings Investment Company LLC (1)
    DelawareTXU
      US Holdings Company
    TexasTXU
      Electric Delivery Company
    TexasTXU
      Transition Bond Company LLC
    DelawareTXU
      Electric Capital I
    DelawareTXU
      Electric Capital II
    DelawareTXU
      Electric Capital III
    DelawareTXU
      Electric Capital IV
    DelawareTXU
      Electric Capital V
    DelawareTXU
      Electric Capital VI
    DelawareTXU
      Electric Capital VII
    DelawareTXU
      Electric Capital VIII
    DelawareTXU
      Energy Holdings Company
    TexasTXU
      Energy Company LLC (2)
    DelawareTXU
      Energy Investment Company LLC (3)
    DelawareTXU
      Energy Finance Company LLC
    DelawareTXU
      Energy Retail Management Company LLC
    DelawareTXU
      Energy Retail Company LP
    TexasTXU
      Energy Solutions Management Company LLC
    DelawareTXU
      Energy Solutions Investment Company LLC
    DelawareTXU
      Energy Solutions Company LP
    TexasTXU
      Chilled Water Solutions Company
    TexasTXU
      SEM Company
    DelawareMyHomeKey.com,
      Inc. (4)
    DelawarePantellos
      Corporation (5)
    DelawareTXU
      SESCO Company LLC
    TexasTXU
      SESCO Energy Services Company
    TexasTXU
      Portfolio Optimization Company LLC
    DelawareTXU
      Portfolio Management Company LP
    TexasTXU
      Energy Trading (California) Company
    TexasTXU
      Energy Trading Canada Limited
    CanadaTXU
      ET Services Company
    TexasTXU
      Mining Management Company LLC
    DelawareTXU
      Mining Company LP
    TexasTXU
      Big Brown Mining Management Company LLC
    DelawareTXU
      Big Brown Mining Company LP
    TexasTXU
      Fuel Company
    TexasWichita/Victory
      Ave. LLC
    TexasTXU
      Generation Management Company LLC
    DelawareTXU
      Generation Company LP
    TexasFuelco
      LLC (6)
    DelawareTXU
      Big Brown Management Company LLC
    Delaware





**1**








TXU
      Big Brown Company LP
    TexasTXU
      Big Brown Lignite Management Company LLC
    DelawareTXU
      Big Brown Lignite Company LP
    TexasTXU
      DeCordova Management Company LLC
    DelawareTXU
      DeCordova Company LP
    TexasTXU
      Tradinghouse Management Company LLC
    DelawareTXU
      Tradinghouse Company LP
    TexasTXU
      Generation Services Company
    TexasTXU
      Pedricktown Management Company LLC
    DelawareTXU
      Pedricktown Investment Company LLC
    DelawareTXU
      Pedricktown Retail Company LLC
    DelawareTXU
      Pedricktown Cogeneration Company LP
    DelawareTXU
      Industries Company LLC
    DelawareTXU
      Holdings Company
    DelawareCommunications
      License Holdings I, Inc
    TexasTXU
      Investment Company
    TexasPinnacle
      One GP, LLC (7)
    DelawarePinnacle
      One Partners, L.P. (8)
    DelawarePinnacle
      I, Inc.
    DelawareTXU
      Properties Company
    TexasBasic
      Resources Inc.
    TexasChaco
      Energy Company
    New
      MexicoTXU
      Development Company
    TexasEDC
      Four Inc. (9)
    DelawareNational
      Pipeline Company
    TexasEnserch
      de Mexico S.A. de C.V. (10)
    MexicoEnserch
      de Monterrey S. A. de C. V. (11)
    MexicoTXU
      Vermont Insurance Company
    VermontTXU
      Gas Management Company LLC
    TexasTXU
      Gas Investment Company LLC
    DelawareTXU
      Gas Company LP (Subsidiary of TXU Gas Investment Co LLC)
    TexasTXU
      Gas Distribution Company (an unincorporated division)TXU
      Lone Star Pipeline (an unincorporated division)TXU
      Processing Company
    DelawareENS
      Holdings I, Inc.
    TexasENS
      Holdings Limited Partnership (12)
    TexasEnserch
      SACROC, Inc. (13)
    TexasENS
      Holdings II, Inc.
    TexasENSERCH
      E&C Holdings, Inc.
    NevadaEbasco
      Services of Canada Limited
    CanadaENSERCH
      E&C, Inc.
    NevadaEnserch
      Finance (II), Inc.
    TexasEnserch
      Finance N.V.
    Netherlands
      AntillesEnserch
      House, Inc.
    TexasOncor
      Utility Solutions (Texas) Company
    TexasOncor
      Utility Solutions (North America) Company
    TexasLone
      Star Energy Services Inc.
    TexasLS
      Energy, Inc.
    TexasEnserch
      International Investments Limited
    Delaware





**2**








Humphreys
      & Glasgow Limited (L)
    United
      KingdomTXU
      Business Services Company
    TexasTXU
      CG Management Company LLC
    TexasTXU
      CG Holdings Company LP
    TexasTXU
      Receivables Company
    DelawareTXU
      Finance (No. 2) Holdings Company
    DelawareTXU
      United Kingdom Holdings Company
    DelawareTXU
      International Holdings Limited
    United
      KingdomTXU
      Finance (No. 3) Limited
    United
      KingdomTXU
      Europe Limited**(A)**
    United
      KingdomTXU
      Eastern Finance (A) Limited**(A)**
    United
      KingdomTXU
      Eastern Finance (B) Limited**(A)**
    United
      KingdomTXU
      Eastern Funding Company (14)**(A)**
    United
      KingdomTXU
      Europe CP, Inc.
    DelawareTXU
      Europe Capital I
    DelawareTXU
      Europe Funding I, L.P. (15)
    DelawareTXU
      Finance (No. 2) Limited (16)**(A)**
    United
      KingdomTXU
      Acquisitions Limited**(A)**
    United
      KingdomThe
      Energy Group Limited**(A)**
    United
      KingdomEnergy
      Holdings (No. 2) Limited**(A)**
    United
      KingdomConsolidated
      Gold Fields Limited (L)
    United
      KingdomAnglo-French
      Exploration Company Limited (L)
    United
      KingdomCGF
      Investments Limited (L)
    United
      KingdomEnergy
      Group International Limited (The) (L)
    United
      KingdomExploration
      Ventures Limited (17) (L)
    United
      KingdomExven
      Limited (18) (L)
    United
      KingdomGlobal
      Energy Finance LLC
    DelawareGold
      Fields Industrial Holdings Limited (L)
    United
      KingdomGold
      Fields Mining & Industrial Limited (19) (L)
    United
      KingdomAngbur
      Investment Trust Limited (L)
    United
      KingdomRose,
      Lloyd & Co. Limited (20) (L)
    United
      KingdomMining
      & Industrial Holdings Limited (L)
    United
      KingdomGold
      Fields Rhodesian Development Company Limited (L)
    United
      KingdomMinven
      Minerals Limited (21) (L)
    United
      KingdomNew
      Consolidated Gold Fields Limited (L)
    United
      KingdomPeabody
      Resources (UK) Limited
    United
      KingdomGold
      Fields Resources Limited (22)
    United
      KingdomGold
      Fields Industrial Limited (L)
    United
      KingdomC.
      Tennant, Sons & Company Limited (L)
    United
      KingdomTennant
      Trading Limited (L)
    United
      KingdomTennant
      Security Limited (L)
    United
      KingdomGold
      Fields Mahd Adh Dhahab Limited (L)
    United
      KingdomTXU
      Europe Group plc**(A)**
    United
      KingdomTXU
      Europe (Blade No. 2) Limited**(L)**
    United
      KingdomTXU
      Europe (Blade) Limited**(L)**
    United
      KingdomTXU
      Germany Limited**(A)**
    United
      KingdomTXU
      (UK) Holdings Limited**(A)**
    United
      KingdomEnergy
      Holdings (No.6) Limited**(A)**
    United
      Kingdom





**3**








Eastern
      Electricity Holdings Limited**(A)**
    United
      KingdomTXU
      (UK) Limited**(A)**
    United
      KingdomSpeechnet
      Limited**(L)**
    United
      KingdomTXU
      Direct Sales Limited**(L)**
    United
      KingdomNorweb
      Energi Limited**(L)**
    United
      KingdomMaster
      Registration Agreement Services (23)
    United
      KingdomF.W.
      Cook (Mechanical Services) Limited**(L)**
    United
      KingdomEastern
      Group Insurance Services Limited
    Isle
      of ManEastern
      Corporate Insurance Limited
    Isle
      of ManEastern
      Generation Poland Sp. z.o.o.**(A)**
    PolandGiupep
      Limited (L)
    PolandZamosc
      Energy Company Sp. z o.o. (24)
    PolandSynergia
      Trading S.A.**(L)**
    SpainEastern
      Norge Svartisen A.S.
    NorwayWeb
      Power Limited
    MauritiusTXU
      Europe Property Limited
    United
      KingdomEastern
      Group Finance Limited (L)
    United
      KingdomTXU
      Europe Leasing (4) Limited**(L)**
    United
      KingdomTXU
      Europe Leasing (5) Limited**(L)**
    United
      KingdomTXU
      Europe Overseas Finance Limited**(L)**
    United
      KingdomTXU
      (PT1) Limited**(L)**
    United
      KingdomTXU
      Finland Holdings Limited**(A)**
    United
      KingdomLogicalform
      Limited
    United
      KingdomTXU
      Europe Power Limited**(A)**
    United
      KingdomAnglian
      Power Generators Limited**(A)**
    United
      KingdomStallingborough
      CHP Limited**(A)**
    United
      KingdomTXU
      Europe (Partington) Limited**(L)**
    United
      KingdomTXU
      Europe Power Development Limited**(L)**
    United
      KingdomTXU
      Europe Merchant Generation Limited**(L)**
    United
      KingdomTXU
      Europe Merchant Properties Limited**(L)**
    United
      KingdomPeterborough
      Power Limited**(A)**
    United
      KingdomShotton
      Combined Heat and Power Limited**(A)**
    United
      KingdomBarking
      Power Limited (25)
    United
      KingdomTXU
      Europe Renewable Generation Limited (L)
    United
      KingdomTXU
      Europe Power Production Services Limited**(L)**
    United
      KingdomTXU
      Europe Power Services Limited**(A)**
    United
      KingdomNedalo
      BV**(L)**
    NetherlandsNedalo
      (UK) Limited
    United
      KingdomTXU
      Europe Energy Trading Limited**(A)**
    United
      KingdomPrecis
      (2264) Limited**(L)**
    United
      KingdomTXU
      Europe (AHG Shipping Services) Limited**(L)**
    United
      KingdomTXU
      Europe Natural Gas (Trading) Limited**(L)**
    United
      KingdomTXU
      Europe Energy Trading BV**(A)**
    NetherlandsTXU
      Europe Ireland I
    NetherlandsTXU
      Europe German Finance BV (L)
    NetherlandsTXU
      Europe Energy Trading (UK) Limited**(L)**United
      Kingdom
    United
      KingdomTXU
      Europe Energy Trading (Deutschland) GmbH
    GermanyTXU
      Europe (Deutschland Beteiligung) Gmbh
    GermanyARES
      Energie-Direkt GmbH**(R)**
    Germany





**4**








TXU
      Europe Energy Trading (Nederland) BV
    NetherlandsTXU
      Stadtwerke Holdings Gmbh & Co.KG
    GermanyTXU
      Stadtwerke Beteiligung Gmbh
    GermanyTXU
      Europe Energy Trading (Poland) Sp. z.o.o
    PolandTXU
      Europe Energy Trading (Italia) SpA (26)**(L)**
    ItalyApriliasviluppo
      SrL
    SpainParque
      Eólico La Carracha SL (27)
    SpainParque
      Eólico Plana de Jarreta SL (28)
    SpainNuevos
      Parques Eólicos La Muela AIE (29)
    SpainEastern
      Private Network Management LTD
    United
      KingdomEastern
      Energy Management Limited**(L)**
    United
      KingdomEastern
      Metering Services Limited
    United
      KingdomTXU
      Europe Group Trustees Limited
    United
      KingdomTXU
      Europe Trading Limited**(L)**
    United
      KingdomEastern
      Group Finance Limited**(L)**
    United
      KingdomHutchins
      LTD (L)
    United
      KingdomEnergy
      Group Holdings B.V.**(A)**
    NetherlandsEnergy
      Group Overseas B.V.**(A)**
    NetherlandsEnergy
      Holdings (No. 3) Limited**(L)**
    United
      KingdomEnergy
      (30) Limited**(L)**
    United
      KingdomEnergy
      Holdings (No. 4) Limited**(A)**
    United
      KingdomEnergy
      Holdings (No. 5) Limited**(A)**
    United
      KingdomTEG
      Head Office Limited**(L)**
    United
      KingdomEnergy
      Holdings (No. 1) Limited**(A)**
    United
      KingdomMajor
      Insurance Company**(L)**
    BermudaAlliedhike
      Limited**(L)**
    United
      KingdomEnergy
      Nominees Limited (L)
    United
      KingdomEnergy
      Resources Limited (L)
    United
      KingdomTXU
      Australia (No. 2) Holdings Company
    Delaware


___________________________


(Administration)


(Liquidation)








(1)   100%
ownership of Class B non-voting common stock of TXU US Holdings
Company


(2)   99% owned
by TXU US Holdings Company, 1% owned by TXU Energy Holdings Company


(3)   16.1%
owned by TXU Energy Solutions Company LP


(4)   5.389%
owned by TXU Energy Solutions Company LP


(5)   5.389%
owned by TXU Energy Solutions Company LP


(6)   92%
membership interest owned by TXU Generation Company LP


(7)   50% Class
B Membership owned by TXU Investment Company


(8)   49.75%
limited partnership interest owned by TXU Investment Company,


..5% general partnership interest owned by Pinnacle One GP, LLC


(9)   50% owned
by TXU Development Company


(10)  99% owned
by National Pipeline Company and 1% owned by TXU Development
Company


(11)99.99%
owned by Enserch de Mexico S.A. de C.V. and .01% owned by TXU Development
Company
(12)1% owned
by ENS Holdings I, Inc., 99% owned by ENS Holdings II, Inc.
(13).035%
owned by ENS Holdings Limited Partnership, 99.65% owned by Enserch Finance (II),
Inc.


**5**








(14)  50% owned
by TXU Eastern Finance **(A)** Limited
and 50% owned by TXU Eastern Finance (B)


Limited


(15)  Owned 15%
by TXU Europe Ltd., and 85% by TXU Europe Capital I


(16)  90% owned
by TXU Europe Limited and 10% owned by TXU Finance (No. 2) Holdings
Company


(17)  50% owned
by Energy Holdings (No. 2) Limited


(18)  Owned 76%
by Energy Holdings (No. 2) Limited and 24% by Consolidated God
Fields)


(19)70% owned
by Gold Fields Limited
(20)50% owned
by Angbur Investment Trust Limited and 50% owned by Gold Fields Mining &
Industrial Limited
(21)30% owned
by Gold Fields Limited
(22)   
80% owned by Energy Holdings (No. 2) Limited and 20% owned by Peabody Resources
(UK) Limited


(23)  11% owned
by TXU UK Limited


(24)  49% owned
by TXU Europe Group plc.


Subsidiaries
of PVO track with the various classes of stock issued by PVO. Only the owner of
the individual classes of shares are entitled to the income and power production
of the subsidiary which tracks with the particular class of stock. The only
entitlement which other owners have is equal distribution in the case of
complete liquidation. TXU Nordi Energy owners 60.2% of the class C shares of
PVO. This represents approximately 14.7% of the total of PVO. Therefore, TXU
Nordic only has rights to those entities which track to the Class C shares or
those entities which do not track to a specific class of shares, except in the
case of liquidation.


(25)  13.5%
owned by TXU Europe Power Limited


(26)  99% owned
by TXU Europe Energy Trading BV and 1% owned by TXU Europe Group
plc.


(27)  40% owned
by TXU Europe Energy Trading BV


(28)  40% owned
by TXU Europe Energy Trading BV


(29)  50% owned
by Parque Eólico La Carracha SL and 50% owned by Parque Eólico Plana de Jarreta
SL





Except as
noted above, the voting stock of each subsidiary company and their subsidiaries
and affiliates is wholly owned (100%) by its parent or a wholly -owned
affiliate.














**Affiliates****State
      or County****of
      Incorporation****or
      Organization**ICMC
      Power Consortium, Inc. (1)
    New
      YorkBarking
      Power Limited(2)
    United
      KingdomEIP
      Holdings LLC (3)
    DelawareMaster
      Registered Agreement Services (4)
    United
      KingdomEIP
      Holdings LLC (5)
    Delaware


_______________________





(1)  12.93%
owned by TXU Development Company.
 (2)  13.5%
owned by TXU Europe Power Limited.
 (3)  20%
($2.5M) membership interest owned by TXU Energy Trading Company.
 (4)  5.55%
owned by TXU UK Limited and 5.55% owned by Norweb Energi Limited
 (5)  20%
(2.5M) membership interest owned by TXU Portfolio Management Company
LP.





**6**