Exhibit 23.1 [Letterhead of KPMG] The Board of Directors Caithness Coso Funding Corp. We consent to the use of our report included herein for Caithness Coso Funding Corp. dated April 23, 1999, relating to the balance sheet of Caithness Coso Funding Corp. and to the reference to our firm under the heading "Experts" in the registration statement. /s/ KPMG LLP New York, NY October 6, 1999