Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement on Form S-4 of our report dated March 3, 2006, relating to the consolidated financial statements and financial statement schedule of Nevada Power Company appearing in the Annual Report on Form 10-K of Nevada Power Company for the year ended December 31, 2005 and to the reference to us under the heading “Experts” in the Prospectus, which is part of this Registration Statement.
/s/ DELOITTE & TOUCHE LLP
Reno, Nevada
June 6, 2006