EX-23.1 4 f01633p1exv23w1.txt EXHIBIT 23.1 Exhibit 23.1 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference in this Registration Statement (No. 333-76880) on Form S-3/A of our report dated March 23, 2004 relating to the financial statements and financial statement schedule, which appear in Calpine Corporation's Annual Report on Form 10-K/A for the year ended December 31, 2003. We also consent to the reference to us under the heading "Independent Registered Public Accounting Firm" in such Registration Statement. /s/ PricewaterhouseCoopers LLP Los Angeles, CA September 13, 2004