EX-23.(A) 28 dex23a.txt CONSENT OF INDEPENDENT ACCOUNTANTS Exhibit 23(A) ------------- INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement No. 33-92651 of Sierra Pacific Resources on Form S-8, Registration Statement No. 333-77523 of Sierra Pacific Resources on Form S-8, Registration Statement No. 333-80149 of Sierra Pacific Resources on Form S-3, Registration Statement No. 333-72160 of Sierra Pacific Resources on Form S-3, and Registration Statement No. 333-64438 of Sierra Pacific Resources on Form S-3 of our reports dated February 22, 2002, appearing in this Annual Report on Form 10-K of Sierra Pacific Resources for the year ended December 31, 2001. Deloitte & Touche LLP Reno, Nevada March 18, 2002 193