Constellation Energy Schedules Fourth Quarter Earnings Release and Conference Call for Wednesday, Jan. 30, 2008.

BALTIMORE -- Constellation Energy (NYSE:CEG) today announced that it will release its fourth quarter and full year 2007 earnings results on Wednesday, Jan. 30, 2008. The company will host a conference call at 8:00 a.m. (ET) that day to review the results and discuss its business outlook for 2008 and beyond.

To participate, analysts, investors, media and the public in the U.S. may dial [phone] shortly before 8:00 a.m. The international phone number is [phone]. The conference password is ENERGY. A replay will be available approximately one hour after the end of the call by dialing [phone] or [phone] (international).

A live audio webcast of the conference call, presentation slides and the earnings press release will be available on the Investor Relations page of Constellation Energy's Web site (www.constellation.com). A webcast replay, as well as a replay in downloadable MP3 format, will also be available on the site shortly after the completion of the call.

Constellation Energy (http://www.constellation.com), a FORTUNE 125 company with 2006 revenues of $19.3 billion, is the nation's largest competitive supplier of electricity to large commercial and industrial customers and the nation's largest wholesale power seller. Constellation Energy also manages fuels and energy services on behalf of energy intensive industries and utilities. It owns a diversified fleet of 78 generating units located throughout the United States, totaling approximately 8,700 megawatts of generating capacity. The company delivers electricity and natural gas through the Baltimore Gas and Electric Company (BGE), its regulated utility in Central Maryland.