October 29, 2008

Constellation Energy Schedules Third Quarter Earnings Release and Conference Call for Thursday, Nov. 6, 2008

Constellation Energy (NYSE: CEG) announced that it will release its third quarter earnings results on Thursday, Nov. 6, 2008. The company will host a conference call at 8:30 a.m. (EST) that day to review the results.

To participate, analysts, investors, media and the public in the U.S. may dial (888) 455-2894 shortly before 8:30 a.m. The international phone number is (773) 681-5899. The conference password is ENERGY. A replay will be available approximately one hour after the end of the call by dialing (800) 583-8095 or (203) 369-3815 (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 (http://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. The call will also be recorded and archived on the site.

Constellation Energy (http://www.constellation.com), a FORTUNE 125 company with 2007 revenues of $21 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 83 generating units located throughout the United States, totaling approximately 9,000 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.