Exhibit 23.3
CONSENT OF NETHERLAND, SEWELL & ASSOCIATES, INC.
We hereby consent to the incorporation by reference in this Post-Effective Amendment No. 1 on Form S-3 pertaining to the 4.75% Contingent Convertible Senior Notes Due November 15, 2023 of Calpine Corporation included in Calpine Corporation’s Annual Report on Form 10-K for the year ended December 31, 2004 regarding Calpine Corporation’s estimated domestic proved reserves and to the references to this firm included in such Annual Report.
NETHERLAND, SEWELL & ASSOCIATES, INC. | ||||
By: | /s/ Danny D. Simmons | |||
Danny D. Simmons | ||||
Executive Vice President | ||||
Houston, Texas
April 19, 2005
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