Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-4 of our report dated February 26, 2007 relating to the financial statements and financial statement schedule, which appears in Baltimore Gas and Electric Company’s Annual Report on Form 10-K for the year ended December 31, 2006. We also consent to the references to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Baltimore, Maryland

April 19, 2007