8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  October 14, 2008

Commission File Number	Exact name of registrant as specified in its charter	IRS Employer Identification No.
1-12869	CONSTELLATION ENERGY GROUP, INC.	52-1964611

MARYLAND

(State of Incorporation of registrant)

100 CONSTELLATION WAY,       BALTIMORE, MARYLAND	21202
(Address of principal executive offices)	(Zip Code)

410-470-2800

(Registrant’s telephone number, including area code)

NOT APPLICABLE

(Former name, former address

and former fiscal year, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

x Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01               Other Events

On October 14, 2008, Constellation Energy Group, Inc. (“Constellation”) distributed a communication to employees updating them on the status of the pending merger with MidAmerican Energy Holdings Company (“MidAmerican”).  A copy of the employee communication is attached as Exhibit 99.1 to this report and is incorporated herein by reference.

*              *              *

Forward-Looking Statements.  This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, but not limited to, statements relating to the proposed transaction between Constellation and MidAmerican and the expected timing and completion of the transaction.  Words such as “anticipate,” “believe,” “plan,” “estimate,” “expect,” “intend,” “will,” “should,” “may,” and other similar expressions are intended to identify forward looking statements. Such statements are based upon the current beliefs and expectations of our management and involve a number of significant risks and uncertainties, many of which are difficult to predict and generally beyond the control of Constellation and MidAmerican. Actual results may differ materially from the results anticipated in these forward-looking statements. There can be no assurance as to the timing of the closing of the transaction, or whether the transaction will close at all.  The following factors, among others, could cause or contribute to such material differences: the ability to obtain the approval of the transaction by Constellation’s shareholders; the ability to obtain governmental approvals of the transaction or to satisfy other conditions to the transaction on the terms and expected timeframe or at all; transaction costs; economic conditions; a material adverse change in the business, assets, financial condition or results of operations of Constellation; a material deterioration in Constellation’s retail and/or wholesale businesses and assets; and the effects of disruption from the transaction making it more difficult to maintain relationships with employees, customers, other business partners or government entities. Additional factors that could cause Constellation’s results to differ materially from those described in the forward-looking statements can be found in the periodic reports filed with the Securities and Exchange Commission and in the proxy statement Constellation intends to file with the Securities and Exchange Commission and mail to its shareholders with respect to the proposed transaction, which are or will be available at the Securities and Exchange Commission’s Web site (http://www.sec.gov) at no charge.  Constellation assumes no responsibility to update any forward-looking statements as a result of new information or future developments except as expressly required by law.

Additional Information and Where to Find It.  This communication is being made in respect of the proposed merger transaction involving Constellation and MidAmerican. In connection with the proposed transaction, Constellation will file with the Securities and Exchange Commission a proxy statement and will mail the proxy statement to its shareholders. Shareholders are encouraged to read the proxy statement regarding the proposed transaction when it becomes available because it will contain important information. Shareholders will be able to obtain a free copy of the proxy statement, as well as other filings made by Constellation regarding Constellation, MidAmerican and the proposed transaction, without charge, at the Securities and Exchange Commission’s Internet site (http://www.sec.gov). These materials can

2

also be obtained, when available, without charge, by directing a request to Constellation, Shareholder Services, 100 Constellation Way, Baltimore, Maryland 21202.

Participants in the Solicitation.  Constellation, MidAmerican and their respective directors and executive officers and other persons may be deemed to be participants in the solicitation of proxies in respect of the proposed transaction. Information regarding Constellation’s directors and executive officers is included in Constellation’s Annual Report on Form 10-K for the year ended December 31, 2007 and Constellation’s notice of annual meeting and proxy statement for its most recent annual meeting, which were filed with the Securities and Exchange Commission on February 27, 2008 and April 29, 2008, respectively. Other information regarding the participants in the solicitation and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the proxy statement and other relevant materials to be filed with the Securities and Exchange Commission in connection with the proposed transaction.

Item 9.01.              Financial Statements and Exhibits

(d)           Exhibits

Exhibit No.	Description
99.1	Employee communication dated October 14, 2008

3

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934 the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

      CONSTELLATION ENERGY GROUP, INC.

(Registrant)

Date	October 14, 2008	/s/ Charles A. Berardesco
		Charles A. Berardesco
		Vice President, Deputy General Counsel, Chief       Compliance Officer and Corporate Secretary

4

EXHIBIT INDEX

Exhibit No.	Description
99.1	Employee communication dated October 14, 2008

5

EX-99.1

Exhibit 99.1

Dear Colleague,

It’s been three weeks since we signed our merger agreement with MidAmerican Energy Holdings Company, and we’ve made excellent progress on the first stages of the merger approval process.  To date, three regulatory filings have been made at the federal level, and soon we expect to submit the necessary documentation to start the process in New York state and at the Federal Energy Regulatory Commission (FERC).  Additionally, a proxy filing for shareholders is being developed, as is an application to the Maryland Public Service Commission.

We’ve already made great headway, and I appreciate the time and energy of the many team members contributing to this dynamic process.  Members of the Transaction and Integration Planning Team continue to be squarely focused on keeping the merger approval process on track.  That includes, of course, gaining shareholder approval for the transaction; a vote has not been scheduled, but we expect it to take place between Thanksgiving and Christmas.

Our progress is encouraging and exciting, and the MidAmerican Energy team has been helpful and enthusiastic every step of the way. We must be mindful, however, that final approval of the merger is a long way off.  I would like to impress upon all of you that “running the business” of Constellation Energy must remain our sole focus.  Now more than ever, we must deliver on our business objectives in an extraordinarily challenging market environment.

Our Transaction and Integration Planning Team is developing a framework for how and when any integration activities and communications between the companies will occur, and it looks as if phase one will commence no earlier than January 2009.  I know many of you have questions about potential changes to HR policies and procedures. I assure you that providing timely answers to such questions is a top priority.  For now, however, I must ask for your patience, as we do not expect to address these areas until we’re further along in the merger approval process. I commit to you that we’ll keep you updated as we enter this phase of integration planning.

In the meantime, staying focused on the safe and effective execution of our business plans will ensure a successful transition down the road.  Thank you for your continued support and focus on our business objectives.

Regards,

Mike Wallace

Vice Chairman