CONSENT
OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We
consent to the incorporation by reference in Registration Statement No.
333-145686 on Form S-3D, Registration Statements No. 333-92651 and No.
333-146822 on Form S-8, and Registration Statement No. 333-146100 on Form S-3ASR
of our report dated February 23, 2009 relating to the consolidated financial
statements and financial statement schedule of NV Energy, Inc. (formerly Sierra
Pacific Resources), and the effectiveness of the Company’s internal control over
financial reporting, appearing in this Annual Report on Form 10-K of NV Energy,
Inc. for the year ended December 31, 2008.
/s/ Deloitte & Touche
LLP
Las
Vegas, Nevada
February
23, 2009