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EXHIBIT 22.1

LIST OF GUARANTOR SUBSIDIARIES

The following subsidiaries of NRG Energy, Inc. were guarantors of the Company's outstanding registered senior notes of $375 million of the 2027 Senior Notes and $821 million of the 2028 Senior Notes:

ENTITY NAME						JURISDICTION
Ace Energy, Inc.						New York
Airtron, Inc.						Delaware
Allied Home Warranty GP LLC						Delaware
Allied Warranty LLC						Texas
Astoria Gas Turbine Power LLC						Delaware
AWHR America's Water Heater Rentals, L.L.C.						Delaware
Bounce Energy, Inc.						Delaware
Cabrillo Power I LLC						Delaware
Cabrillo Power II LLC						Delaware
Carbon Management Solutions LLC						Delaware
Cirro Energy Services, Inc.						Texas
Cirro Group, Inc.						Texas
CPL Retail Energy L.P.						Delaware
Direct Energy Business, LLC						Delaware
Direct Energy Connected Home US Inc.						Delaware
Direct Energy GP, LLC						Delaware
Direct Energy HoldCo GP LLC						Delaware
Direct Energy Leasing, LLC						Delaware
Direct Energy Marketing Inc.						Delaware
Direct Energy Operations, LLC						Delaware
Direct Energy Services, LLC						Delaware
Direct Energy US Holdings Inc.						Delaware
Direct Energy, LP						Texas
Dunkirk Power LLC						Delaware
Eastern Sierra Energy Company LLC						California
El Segundo Power II LLC						Delaware
El Segundo Power, LLC						Delaware
Energy Alternatives Wholesale, LLC						Delaware
Energy Choice Solutions LLC						Texas
Energy Plus Holdings LLC						Delaware
Energy Plus Natural Gas LLC						Delaware
Everything Energy LLC						Delaware
First Choice Power, LLC						Texas
Forward Home Security, LLC						Texas
Gateway Energy Services Corporation						New York
GCP Funding Company, LLC						Delaware
Green Mountain Energy Company						Delaware

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Gregory Partners, LLC						Delaware
Home Warranty Holdings Corp.						Delaware
Huntley Power LLC						Delaware
Independence Energy Alliance LLC						Delaware
Independence Energy Group LLC						Delaware
Independence Energy Natural Gas LLC						Delaware
Indian River Operations Inc.						Delaware
Indian River Power LLC						Delaware
Masters, Inc.						Maryland
Meriden Gas Turbines LLC						Delaware
NEO Corporation						Minnesota
New Genco GP, LLC						Delaware
Norwalk Power LLC						Delaware
NRG Affiliate Services Inc.						Delaware
NRG Arthur Kill Operations Inc.						Delaware
NRG Astoria Gas Turbine Operations Inc.						Delaware
NRG Business Marketing LLC						Delaware
NRG Business Services LLC						Delaware
NRG Cabrillo Power Operations Inc.						Delaware
NRG California Peaker Operations LLC						Delaware
NRG Cedar Bayou Development Company, LLC						Delaware
NRG Connected Home LLC						Delaware
NRG Construction LLC						Delaware
NRG Controllable Load Services LLC						Delaware
NRG Curtailment Solutions, Inc.						New York
NRG Development Company Inc.						Delaware
NRG Dispatch Services LLC						Delaware
NRG Distributed Energy Resources Holdings LLC						Delaware
NRG Distributed Generation PR LLC						Delaware
NRG Dunkirk Operations Inc.						Delaware
NRG ECOKAP Holdings LLC						Delaware
NRG El Segundo Operations Inc.						Delaware
NRG Energy Labor Services LLC						Delaware
NRG Energy Services Group LLC						Delaware
NRG Energy Services LLC						Delaware
NRG Generation Holdings Inc.						Delaware
NRG Home & Business Solutions LLC						Delaware
NRG Home Services LLC						Texas
NRG Home Solutions LLC						Delaware
NRG Home Solutions Product LLC						Delaware
NRG Homer City Services LLC						Delaware
NRG HQ DG LLC						Delaware
NRG Huntley Operations Inc.						Delaware

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NRG Identity Protect LLC						Delaware
NRG International LLC						Delaware
NRG Maintenance Services LLC						Delaware
NRG Mextrans Inc.						Delaware
NRG Norwalk Harbor Operations Inc.						Delaware
NRG Operating Services, Inc.						Delaware
NRG Portable Power LLC						Delaware
NRG Protects Inc. (IL)						Illinois
NRG Reliability Solutions LLC						Delaware
NRG Renter's Protection LLC						Delaware
NRG Retail LLC						Delaware
NRG Retail Northeast LLC						Delaware
NRG Rockford Acquisition LLC						Delaware
NRG Saguaro Operations Inc.						Delaware
NRG Security LLC						Delaware
NRG Services Corporation						Delaware
NRG SimplySmart Solutions LLC						Delaware
NRG Texas Gregory LLC						Delaware
NRG Texas Holding Inc.						Delaware
NRG Texas LLC						Delaware
NRG Texas Power LLC						Delaware
NRG Warranty Services LLC						Delaware
NRG West Coast LLC						Delaware
NRG Western Affiliate Services Inc.						Delaware
Reliant Energy Northeast LLC						Delaware
Reliant Energy Power Supply, LLC						Delaware
Reliant Energy Retail Holdings, LLC						Delaware
Reliant Energy Retail Services, LLC						Delaware
RERH Holdings, LLC						Delaware
RSG Holding Corp.						Delaware
Saguaro Power LLC						Delaware
SGE Energy Sourcing, LLC						Delaware
SGE Texas Holdco, LLC						Texas
Somerset Operations Inc.						Delaware
Somerset Power LLC						Delaware
Stream Energy Columbia, LLC						Delaware
Stream Energy Delaware, LLC						Delaware
Stream Energy Illinois, LLC						Delaware
Stream Energy Maryland, LLC						Delaware
Stream Energy New Jersey, LLC						Delaware
Stream Energy New York, LLC						Delaware
Stream Energy Pennsylvania, LLC						Delaware
Stream Georgia Gas SPE, LLC						Georgia

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Stream Ohio Gas & Electric, LLC						Ohio
Stream SPE GP, LLC						Texas
Stream SPE, Ltd.						Texas
Texas Genco GP, LLC						Texas
Texas Genco Holdings, Inc.						Texas
Texas Genco LP, LLC						Delaware
Texas Genco Services, LP						Texas
US Retailers LLC						Delaware
Vienna Operations Inc.						Delaware
Vienna Power LLC						Delaware
WCP (Generation) Holdings LLC						Delaware
West Coast Power LLC						Delaware
WTU Retail Energy L.P.						Delaware
XOOM Alberta Holdings, LLC						Delaware
XOOM British Columbia Holdings, LLC						Delaware
XOOM Energy California, LLC						California
XOOM Energy Connecticut, LLC						Connecticut
XOOM Energy Delaware, LLC						Delaware
XOOM Energy Georgia, LLC						Georgia
XOOM Energy Global Holdings, LLC						Delaware
XOOM Energy Illinois LLC						Illinois
XOOM Energy Indiana, LLC						Indiana
XOOM Energy Kentucky, LLC						Kentucky
XOOM Energy Maine, LLC						Maine
XOOM Energy Maryland, LLC						Maryland
XOOM Energy Massachusetts, LLC						Massachusetts
XOOM Energy Michigan, LLC						Michigan
XOOM Energy New Hampshire, LLC						New Hampshire
XOOM Energy New Jersey, LLC						New Jersey
XOOM Energy New York, LLC						New York
XOOM Energy Ohio, LLC						Ohio
XOOM Energy Pennsylvania, LLC						Pennsylvania
XOOM Energy Rhode Island, LLC						Rhode Island
XOOM Energy Texas, LLC						Texas
XOOM Energy Virginia, LLC						Virginia
XOOM Energy Washington D.C., LLC						District of Columbia
XOOM Energy, LLC						Delaware
XOOM Ontario Holdings, LLC						Delaware
XOOM Solar, LLC						Delaware