EXHIBIT 23.8

            Consent of Independent Registered Public Accounting Firm

The Board of Directors
NRG Energy, Inc.

We consent to the incorporation by reference in this registration statement to
be filed on Form S-3 of NRG Energy, Inc. (the Company) of our report dated May
27, 2005, with respect to the consolidated balance sheet of Oswego Harbor Power
LLC as of December 31, 2004 and 2003, and the related consolidated statements of
operations, member's equity (deficit) and comprehensive income, and cash flows
for the year ended December 31, 2004 and the period from December 6, 2003 to
December 31, 2003, and also our report dated May 27, 2005, with respect to the
statements of operations, member's equity (deficit) and cash flows of Oswego
Harbor Power LLC for the period from January 1, 2003 to December 5, 2003 and for
the year ended December 31, 2002, which reports are included on Form 8-K dated
June 15, 2005, which is incorporated by reference in this registration
statement. We also consent to the reference to our firm under the heading
"Experts" in this registration statement.

/s/ KPMG LLP

Philadelphia, Pennsylvania
December 20, 2005