CEG Constellation Energy Grp. Common Stock

George Vanderheyden Appointed President of UniStar Nuclear and Senior Vice President-Constellation Generation Group BALTIMORE, Dec. 7 /PRNewswire-FirstCall/ -- Constellation Energy (NYSE:CEG) today announced that it has named George Vanderheyden, who has managed operations at one of the nation's best-run nuclear facilities, to head its new nuclear program as it implements the business model for rolling out next-generation nuclear technology. Vanderheyden, currently site vice president of Constellation Energy's Calvert Cliffs Nuclear Power Plant in Lusby, Md., will be responsible for leading Constellation's efforts to develop and deploy new nuclear facilities. Vanderheyden will report to executive vice president of Constellation Energy, Michael J. Wallace, who also is president and chief executive officer of Constellation Generation Group, and serves as co-chief executive officer of UniStar Nuclear, the company's joint venture with AREVA, Inc. Vanderheyden also will hold the position of president of UniStar Nuclear, reporting to Wallace and UniStar co-chief executive officer Thomas Christopher of AREVA. "Through the UniStar business model, Constellation Energy is committed to pursuing the goal of developing and deploying next-generation nuclear plants, and that will require leaders with exceptional skill, experience and vision," said Wallace. "We are fortunate to have the necessary depth and experience within our existing nuclear leadership team that allows us to make this announcement today. George's nuclear operational and business expertise combined with his demonstrated leadership skills, will serve us well as we move forward under the UniStar business model." James Spina, currently site vice president of Constellation's Nine Mile Point Nuclear Station in Oswego, N.Y., will succeed Vanderheyden at the Calvert Cliffs facility. Spina, who earned a bachelor's degree in physics from State University of New York-Fredonia and a Master of Science in technical management from Johns Hopkins University, has more than 23 years' experience in the nuclear industry, 17 of them spent at Calvert Cliffs. Succeeding Spina at the Nine Mile Point plant will be Timothy O'Connor, who currently serves as plant general manager at the facility. O'Connor earned a bachelor's degree in mechanical engineering from Marquette University, and has held several leadership positions with other nuclear operators. Constellation Energy (http://www.constellation.com/), a FORTUNE 200 company based in Baltimore, 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 more than 100 generating units located throughout the United States, totaling approximately 12,000 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. In 2004, the combined revenues of the integrated energy company totaled $12.5 billion. DATASOURCE: Constellation Energy CONTACT: Tracy Imm of Constellation Energy, +1-410-234-7433 Web site: http://www.constellation.com/ Company News On-Call: http://www.prnewswire.com/comp/084087.html

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