EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 27, 2007 (which report expresses an unqualified opinion on the consolidated financial statements and financial statement schedules and includes an explanatory paragraph relating to the adoption of Statement of Financial Accounting Standards No. 158, Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans – an amendment of FASB Statements No. 87, 88, 106, and 132(R), as of December 31, 2006), relating to the consolidated financial statements and financial statement schedules of MidAmerican Energy Holdings Company and subsidiaries, appearing in the Annual Report on Form 10-K of MidAmerican Energy Holdings Company and subsidiaries for the year ended December 31, 2006.

/s/ Deloitte & Touche LLP

DELOITTE & TOUCHE LLP

Des Moines, Iowa

December 6, 2007