Exhibit 21.1

SUBSIDIARIES OF RELIANT ENERGY, INC.  AS OF MARCH 15, 2006

|Subsidiary Name                                  |  | Jurisdiction of Incorporation/Organization
|------------------------------------------------ |  | ------------------------------------------
|CapTrades GP, LLC*                               |  | Delaware                                  
|CapTrades, LP*                                   |  | Delaware                                  
|Conemaugh Fuels, LLC*                            |  | Delaware                                  
|Keystone Fuels, LLC*                             |  | Delaware                                  
|MidWest Ash Disposal, Inc.                       |  | Delaware                                  
|OPOS MidAtlantic, Inc.                           |  | Delaware                                  
|Orion Power Atlantic, Inc.                       |  | Delaware                                  
|Orion Power Capital, LLC                         |  | Delaware                                  
|Orion Power Development Company, Inc.            |  | Delaware                                  
|Orion Power Holdings, Inc.                       |  | Delaware                                  
|Orion Power Marketing and Supply, Inc.           |  | Delaware                                  
|Orion Power Midwest GP, Inc.                     |  | Delaware                                  
|Orion Power Midwest LP, LLC                      |  | Delaware                                  
|Orion Power Midwest, L.P.                        |  | Delaware                                  
|Orion Power New York GP, Inc.                    |  | Delaware                                  
|Orion Power New York LP, LLC                     |  | Delaware                                  
|Orion Power New York, L.P.                       |  | Delaware                                  
|Orion Power Operating Services Midwest, Inc.     |  | Delaware                                  
|Orion Power Operating Services, Inc.             |  | Delaware                                  
|RE Retail Receivables, LLC                       |  | Delaware                                  
|Reliant Energy Asset Management, LLC             |  | Delaware                                  
|Reliant Energy Broadband, Inc.                   |  | Delaware                                  
|Reliant Energy California Holdings, LLC          |  | Delaware                                  
|Reliant Energy CapTrades Holding Corp.           |  | Delaware                                  
|Reliant Energy Channelview (Delaware) LLC        |  | Delaware                                  
|Reliant Energy Channelview (Texas) LLC           |  | Delaware                                  
|Reliant Energy Channelview LP                    |  | Delaware                                  
|Reliant Energy Communications, Inc.              |  | Delaware                                  
|Reliant Energy Coolwater, Inc.                   |  | Delaware                                  
|Reliant Energy Corporate Services, LLC           |  | Delaware                                  
|Reliant Energy Electric Solutions, LLC           |  | Delaware                                  
|Reliant Energy Ellwood, Inc.                     |  | Delaware                                  
|Reliant Energy Etiwanda, Inc.                    |  | Delaware                                  
|Reliant Energy Florida Holdings, LLC             |  | Delaware                                  
|Reliant Energy Florida, LLC                      |  | Delaware                                  
|Reliant Energy Key/Con Fuels, LLC                |  | Delaware                                  
|Reliant Energy Mandalay, Inc.                    |  | Delaware                                  
|Reliant Energy Maryland Holdings, LLC            |  | Delaware                                  
|Reliant Energy Mid-Atlantic Power Holdings, LLC  |  | Delaware                                  
|Reliant Energy Mid-Atlantic Power Services, Inc. |  | Delaware                                  
|Reliant Energy Net Ventures, Inc.                |  | Delaware                                  
|Reliant Energy New Jersey Holdings, LLC          |  | Delaware                                  
|Reliant Energy Northeast Generation, Inc.        |  | Delaware                                  
|Reliant Energy Northeast Holdings, Inc.          |  | Delaware                                  
|Reliant Energy Northeast Management Company      |  | Pennsylvania                              
|Reliant Energy Ormond Beach, Inc.                |  | Delaware                                  
|Reliant Energy Power Generation, Inc.            |  | Delaware                                  
|                                                 |  |                                           

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|Reliant Energy Retail Holdings, LLC              |  | Delaware   
|------------------------------------------------ |  | -----------
|Reliant Energy Retail Services, LLC              |  | Delaware   
|Reliant Energy Sabine (Delaware), Inc.           |  | Delaware   
|Reliant Energy Sabine (Texas), Inc.              |  | Delaware   
|Reliant Energy Services Canada, Ltd.             |  | Canada     
|Reliant Energy Services Channelview LLC          |  | Delaware   
|Reliant Energy Services Desert Basin, LLC        |  | Delaware   
|Reliant Energy Services Mid-Stream, LLC          |  | Delaware   
|Reliant Energy Services, Inc.                    |  | Delaware   
|Reliant Energy Seward, LLC                       |  | Delaware   
|Reliant Energy Solutions East, LLC               |  | Delaware   
|Reliant Energy Trading Exchange, Inc.            |  | Delaware   
|Reliant Energy Ventures, Inc.                    |  | Delaware   
|Reliant Energy Wholesale (Europe) Holdings, B.V. |  | Netherlands
|Reliant Energy Wholesale Generation, LLC         |  | Delaware   
|Sabine Cogen, LP*                                |  | Delaware   
|Twelvepole Creek, LLC                            |  | Delaware   

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