Exhibit 21

MISSION ENERGY HOLDING COMPANY  LIST OF SUBSIDIARIES  As of March 12, 2004

|Entity                                       |  | Jurisdiction Of
Organization
|-------------------------------------------- |  | ----------------------------
|Aguila Energy Company                        |  | California                  
|Anacapa Energy Company                       |  | California                  
|Arrowhead Energy Company (Inactive)          |  | California                  
|Athens Funding, L.L.C.                       |  | Delaware                    
|Balboa Energy Company                        |  | California                  
|Beheer-en Beleggingsmaatschappij Jydeno B.V. |  | The Netherlands             
|Blue Ridge Energy Company                    |  | California                  
|Bretton Woods Energy Company                 |  | California                  
|Bretton Woods Funding I, L.L.C.              |  | Delaware                    
|Camino Energy Company                        |  | California                  
|Caresale Services Limited                    |  | United Kingdom              
|Centerport Energy Company                    |  | California                  
|Chesapeake Bay Energy Company                |  | California                  
|Chester Energy Company                       |  | California                  
|Chestnut Ridge Energy Company                |  | California                  
|Citizens Power Holdings One, LLC             |  | Delaware                    
|Clayville Energy Company                     |  | California                  
|Collins Holdings EME, LLC                    |  | Delaware                    
|Colonial Energy Company (Inactive)           |  | California                  
|Contact Energy Limited                       |  | New Zealand                 
|Coronado Energy Company                      |  | California                  
|CP Power Sales Nineteen, L.L.C.              |  | Delaware                    
|CP Power Sales Seventeen, L.L.C.             |  | Delaware                    
|CP Power Sales Twelve, L.L.C.                |  | Delaware                    
|CP Power Sales Twenty, L.L.C.                |  | Delaware                    
|Crown Vista Urban Renewal Corporation        |  | California                  
|Crescent Valley Energy Company (Inactive)    |  | California                  
|Del Mar Energy Company                       |  | California                  
|Delaware Energy Conservers, Inc. (Inactive)  |  | Delaware                    
|Desert Sunrise Energy Company (Inactive)     |  | Nevada                      
|Devereaux Energy Company (Inactive)          |  | California                  
|Doga Enerji Uretim Sanayi ve Ticaret L.S.    |  | Turkey                      
|Doga Isletme ve Bakim Ticaret Ltd. Sirketi   |  | Turkey                      
|Doga Isi Satis Hizmetleri ve Ticaret L.S.    |  | Turkey                      
|East Maine Energy Company (Inactive)         |  | California                  
|EcoElectrica Holdings, Limited               |  | Cayman Islands              
|EcoElectria Limited                          |  | Cayman Islands              
|EcoElectrica S.a.r.l.                        |  | Luxembourg                  
|Edison Alabama Generating Company (Inactive) |  | California                  
|Edison First Power Holdings I                |  | United Kingdom              
|Edison First Power Holdings II               |  | United Kingdom              
|Edison First Power Limited                   |  | Guernsey                    
|                                             |  |                             

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|Edison Mission Advantage B.V.                                                 |  | The Netherlands 
|----------------------------------------------------------------------------- |  | ----------------
|Edison Mission Ausone Pty. Ltd.                                               |  | Australia       
|Edison Mission Development, Inc.                                              |  | Delaware        
|Edison Mission Energy                                                         |  | Delaware        
|Edison Mission Energy Asia Pacific Pte. Ltd.                                  |  | Singapore       
|Edison Mission Energy Asia Pte Ltd.                                           |  | Singapore       
|Edison Mission Energy Australia Ltd.                                          |  | Australia       
|Edison Mission Energy Australia Pilbara Power Ltd.                            |  | Australia       
|Edison Mission Energy Desarrollos Espana, S.L.                                |  | Spain           
|Edison Mission Energy Fuel                                                    |  | California      
|Edison Mission Energy Fuel Company Pte Ltd.                                   |  | Singapore       
|Edison Mission Energy Fuel Services, LLC                                      |  | Delaware        
|Edison Mission Energy Funding Corp.                                           |  | Delaware        
|Edison Mission Energy Holdings Pty. Ltd.                                      |  | Australia       
|Edison Mission Energy Interface Ltd.                                          |  | British Columbia
|Edison Mission Energy International B.V.                                      |  | The Netherlands 
|Edison Mission Energy Limited                                                 |  | United Kingdom  
|Edison Mission Energy Oil & Gas                                               |  | California      
|Edison Mission Energy Petroleum                                               |  | California      
|Edison Mission Energy Power                                                   |  | Mauritius       
|Edison Mission Energy Services B.V.                                           |  | The Netherlands 
|Edison Mission Energy Services, Inc.                                          |  | California      
|Edison Mission Energy Taupo Limited                                           |  | New Zealand     
|Edison Mission Finance Co.                                                    |  | California      
|Edison Mission Fuel Resources, Inc.                                           |  | Delaware        
|Edison Mission Fuel Transportation, Inc.                                      |  | Delaware        
|Edison Mission Holdings Co.                                                   |  | California      
|Edison Mission LYB PEDS Pty Ltd. (formerly Edison Mission De Laide Pty. Ltd.) |  | Australia       
|Edison Mission Marketing & Trading, Inc.                                      |  | California      
|Edison Mission Marketing and Services Limited                                 |  | United Kingdom  
|Edison Mission Midwest Holdings Co.                                           |  | Delaware        
|Edison Mission Millennium B.V.                                                |  | The Netherlands 
|Edison Mission Operation & Maintenance (Thailand) Company Limited             |  | Thailand        
|Edison Mission Operation & Maintenance Kwinana Pty Ltd.                       |  | Australia       
|Edison Mission Operation & Maintenance Limited                                |  | United Kingdom  
|Edison Mission Operation & Maintenance Loy Yang Pty Ltd.                      |  | Australia       
|Edison Mission Operation & Maintenance Services B.V.                          |  | The Netherlands 
|Edison Mission Operation & Maintenance Services Pte Ltd                       |  | Singapore       
|Edison Mission Operation & Maintenance, Inc.                                  |  | California      
|Edison Mission Overseas Co.                                                   |  | Delaware        
|Edison Mission Overseas Limited                                               |  | United Kingdom  
|Edison Mission Project Co.                                                    |  | Delaware        
|Edison Mission Retail Pty Ltd.                                                |  | Australia       
|Edison Mission Services Limited                                               |  | United Kingdom  
|Edison Mission Utilities Pty Ltd.                                             |  | Australia       
|Edison Mission Vendesi Pty Ltd.                                               |  | Australia       
|Edison Mission Wind Power Italy B.V.                                          |  | The Netherlands 
|El Dorado Energy Company                                                      |  | California      
|Electrometalurgica del Ebro, S.L.                                             |  | Spain           
|                                                                              |  |                 

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|EME Adelaide Energy Limited                                                     |  | United Kingdom 
|------------------------------------------------------------------------------- |  | ---------------
|EME Ascot Limited                                                               |  | United Kingdom 
|EME Australia Capital Pty Ltd                                                   |  | Australia      
|EME Atlantic Holdings Limited                                                   |  | United Kingdom 
|EME Buckingham Limited                                                          |  | United Kingdom 
|EME Caliraya B.V.                                                               |  | The Netherlands
|EME CP Holdings Co.                                                             |  | Delaware       
|EME del Caribe                                                                  |  | Cayman Islands 
|EME del Caribe Holding GmbH                                                     |  | Austria        
|EME Eastern Holdings Co.                                                        |  | Delaware       
|EME Finance UK Limited                                                          |  | United Kingdom 
|EME Generation Holdings Limited                                                 |  | United Kingdom 
|EME International Dragon Limited                                                |  | United Kingdom 
|EME Investments, LLC                                                            |  | Delaware       
|EME Kalayaan B.V.                                                               |  | The Netherlands
|EME Monet Limited                                                               |  | United Kingdom 
|EME Philippines Services Corporation (formerly EME Philippines O&M Corporation) |  | The Philippines
|EME Precision B.V.                                                              |  | The Netherlands
|EME Royale                                                                      |  | New Zealand    
|EME Southwest Power Corporation                                                 |  | Delaware       
|EME Tri Gen B.V.                                                                |  | The Netherlands
|EME UK International LLC                                                        |  | Delaware       
|EME Victoria B.V. (Inactive)                                                    |  | The Netherlands
|EME Victoria Generation Limited                                                 |  | United Kingdom 
|EMOM Services, Inc.                                                             |  | Delaware       
|EMP, Inc. (Inactive)                                                            |  | Oregon         
|Energy Generation Finance UK PLC                                                |  | United Kingdom 
|Enerloy Pty Ltd                                                                 |  | Australia      
|FHH No. 1 Limited                                                               |  | United Kingdom 
|FHH No. 2 Limited                                                               |  | United Kingdom 
|First Hydro Company                                                             |  | United Kingdom 
|First Hydro Finance plc                                                         |  | United Kingdom 
|First Hydro Holdings Company                                                    |  | United Kingdom 
|First Hydro Renewables Limited                                                  |  | United Kingdom 
|First Hydro Renewables Number 2 Limited                                         |  | Wales          
|Four Counties Gas Company (Inactive)                                            |  | California     
|Gippsland Power Pty Ltd                                                         |  | Australia      
|Global Generation B.V.                                                          |  | The Netherlands
|Global Power Investors, Inc.                                                    |  | California     
|Hancock Generation LLC                                                          |  | Delaware       
|Holtsville Energy Company                                                       |  | California     
|Homer City Property Holdings, Inc.                                              |  | California     
|Hydro Energy B.V.                                                               |  | The Netherlands
|Iberian Hy-Power Amsterdam B.V.                                                 |  | The Netherlands
|Iberica de Energias, S.L.                                                       |  | Spain          
|Indian Bay Energy Company                                                       |  | California     
|Island Capital S.a.r.l.                                                         |  | Luxembourg     
|Jefferson Energy Company (Inactive)                                             |  | California     
|                                                                                |  |                

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|Kings Canyon Energy Company (Inactive)                                      |  | California     
|--------------------------------------------------------------------------- |  | ---------------
|Kingspark Energy Company                                                    |  | California     
|La Jolla Energy Company (Inactive)                                          |  | California     
|Laguna Energy Company (Inactive)                                            |  | California     
|Lakeland Power Development Company Limited                                  |  | United Kingdom 
|Lakeland Power Ltd.                                                         |  | United Kingdom 
|Lakeview Energy Company                                                     |  | California     
|Latrobe Power Pty. Ltd.                                                     |  | Australia      
|Latrobe Valley B.V. (formerly Beheer-en Beleggingsmaatschappij Botara B.V.) |  | The Netherlands
|Lehigh River Energy Company (Inactive)                                      |  | California     
|Longview Cogeneration Company                                               |  | California     
|Loy Yang Holdings Pty Ltd                                                   |  | Australia      
|Loyvic Pty. Ltd.                                                            |  | Australia      
|Madera Energy Company                                                       |  | California     
|Madison Energy Company                                                      |  | California     
|Majestic Energy Limited                                                     |  | United Kingdom 
|Maplekey Holdings Limited                                                   |  | United Kingdom 
|Maplekey UK Finance Limited                                                 |  | United Kingdom 
|Maplekey UK Limited                                                         |  | United Kingdom 
|MEC Esenyurt B.V.                                                           |  | The Netherlands
|MEC IES B.V.                                                                |  | The Netherlands
|MEC Indo Coal B.V.                                                          |  | The Netherlands
|MEC Indonesia B.V.                                                          |  | The Netherlands
|MEC International B.V.                                                      |  | The Netherlands
|MEC International Holdings B.V.                                             |  | The Netherlands
|MEC Java B.V. (formerly MEC India B.V.).                                    |  | The Netherlands
|MEC Laguna Power B.V.                                                       |  | The Netherlands
|MEC Perth B.V.                                                              |  | The Netherlands
|MEC Priolo B.V.                                                             |  | The Netherlands
|MEC San Pascual B.V.                                                        |  | The Netherlands
|MEC Sidi Krir B.V.                                                          |  | The Netherlands
|MEC Sumatra B.V.                                                            |  | The Netherlands
|MEC Wales B.V.                                                              |  | The Netherlands
|Midwest Generation EME, LLC                                                 |  | Delaware       
|Midwest Generation, LLC                                                     |  | Delaware       
|Midwest Generation Energy Services, LLC (formerly CP Power Sales Eighteen)  |  | Delaware       
|Midwest Peaker Holdings, Inc.                                               |  | Delaware       
|Mission Contact Finance Limited                                             |  | New Zealand    
|Mission De Las Estrellas LLC                                                |  | Delaware       
|Mission Del Cielo Inc.                                                      |  | Delaware       
|Mission Del Sol, LLC                                                        |  | Delaware       
|Mission Energy (Kwinana) Pty. Ltd.                                          |  | Australia      
|Mission Energy Company (UK) Limited                                         |  | United Kingdom 
|Mission Energy Construction Services, Inc.                                  |  | California     
|Mission Energy Development Australia Pty Ltd                                |  | Australia      
|Mission Energy Five Star                                                    |  | New Zealand    
|Mission Energy Generation, Inc. (Inactive)                                  |  | California     
|Mission Energy Holdings International, Inc.                                 |  | Delaware       
|Mission Energy Holdings Superannuation Fund Pty Ltd                         |  | Australia      
|                                                                            |  |                

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|Mission Energy Holdings, Inc.                                       |  | California     
|------------------------------------------------------------------- |  | ---------------
|Mission Energy Indonesia (Inactive)                                 |  | California     
|Mission Energy Italia S.r.l                                         |  | Italy          
|Mission Energy Mexico (Inactive)                                    |  | California     
|Mission Energy New York, Inc.                                       |  | California     
|Mission Energy Pacific Holdings (formerly EME Pacific Holdings)     |  | New Zealand    
|Mission Energy Universal Holdings (formerly EME Universal Holdings) |  | New Zealand    
|Mission Energy Ventures Australia Pty Ltd                           |  | Australia      
|Mission Energy Wales Company                                        |  | California     
|Mission Energy Westside, Inc.                                       |  | California     
|Mission Hydro (UK) Limited                                          |  | United Kingdom 
|Mission NZ Operations B.V. (Inactive)                               |  | The Netherlands
|Mission Triple Cycle Systems Company                                |  | California     
|Mission/Eagle Energy Company (Inactive)                             |  | California     
|North Jackson Energy Company (Inactive)                             |  | California     
|Northville Energy Corporation (Inactive)                            |  | New York       
|Northern Sierra Energy Company                                      |  | California     
|Ortega Energy Company                                               |  | California     
|P.T. Edison Mission Operation & Maintenance Indonesia               |  | Indonesia      
|Panther Timber Company                                              |  | California     
|Paradise Energy Company (Inactive)                                  |  | California     
|Pleasant Valley Energy Company                                      |  | California     
|Pocono Fuels Company (Inactive)                                     |  | California     
|Pride Hold Limited                                                  |  | United Kingdom 
|Quartz Peak Energy Company                                          |  | California     
|Rapid Energy Limited                                                |  | United Kingdom 
|Rapidan Energy Company                                              |  | California     
|Redbill Contracts Limited                                           |  | United Kingdom 
|Reeves Bay Energy Company                                           |  | California     
|Ridgecrest Energy Company                                           |  | California     
|Rio Escondido Energy Company                                        |  | California     
|Riverport Energy Company                                            |  | California     
|San Gabriel Energy Company (Inactive)                               |  | California     
|San Joaquin Energy Company                                          |  | California     
|San Juan Energy Company                                             |  | California     
|San Pedro Energy Company                                            |  | California     
|Santa Ana Energy Company                                            |  | California     
|Santa Clara Energy Company                                          |  | California     
|Silver Springs Energy Company                                       |  | California     
|Silverado Energy Company                                            |  | California     
|Sonoma Geothermal Company (Inactive)                                |  | California     
|South Australian Holdings Ltd.                                      |  | United Kingdom 
|South Coast Energy Company                                          |  | California     
|Southern Sierra Energy Company                                      |  | California     
|Southern Sierra Gas Company                                         |  | California     
|Southwestern Generation B.V.                                        |  | The Netherlands
|Sunapee Funding I, L.L.C.                                           |  | Delaware       
|Thorofare Energy Company (Inactive)                                 |  | California     
|Traralgon Power Pty. Ltd.                                           |  | Australia      
|                                                                    |  |                

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|Valley Power Pty. Ltd.          |  | Australia 
|------------------------------- |  | ----------
|Viejo Energy Company            |  | California
|Vista Energy Company (Inactive) |  | New Jersey
|Western Sierra Energy Company   |  | California

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