CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statement on Form S-3 (No. 333-11521-99) and Form S-8 (No. 333-110086 and 333-134953) of CH Energy Group, Inc. of our report dated February 12, 2007 relating to the financial statements, financial statement schedule, management's assessment of the effectiveness of internal control over financial reporting and the effectiveness of internal control over financial reporting, which appears in this Form 10-K. /s/ PricewaterhouseCoopers LLP Buffalo, New York February 12, 2007