EX-23 4 exhibit23b.txt EXHIBIT 23B EXHIBIT 23(b) INDEPENDENT AUDITORS' CONSENT -------------------------------------------------------------------------------- We consent to the incorporation by reference in this Pre-Effective Amendment No. 1 to Registration Statement No. 333-62232 of Avista Corporation on Form S-4 of our report dated February 2, 2001 (February 26, 2001, as to Note 22), appearing in the Annual Report on Form 10-K of Avista Corporation for the year ended December 31, 2000, and to the reference to us under the heading "Experts" in the Prospectus, which is part of this Registration Statement. /s/ DELOITTE & TOUCHE LLP DELOITTE & TOUCHE LLP Seattle, Washington September 24, 2001