BALTIMORE, Sept. 12 /PRNewswire-FirstCall/ -- Constellation Energy (NYSE: CEG) today announced for a fourth consecutive year it has been named to the Dow Jones Sustainability Index (DJSI), which tracks the financial, environmental and social performance of leading sustainability-driven companies worldwide.

"Being named to the Sustainability Index once again serves as a strong indication of our continued commitment to delivering solid financial performance while meeting key environmental and social responsibility goals," said Mayo A. Shattuck, chairman, president and chief executive officer of Constellation Energy. "We will continue to make responsible choices for the environment, the communities we serve and all of our stakeholders."

DJSI annually reviews corporations both regionally and globally across a wide range of industry sectors. The results are based on a thorough analysis of set criteria, which include a corporation's economic, environmental and social performance. Investors around the globe monitor the lists annually to determine which companies are successfully establishing and achieving sustainability initiatives.

Constellation Energy is one of 10 U.S. companies named to the DJSI North America in the utilities sector. This index focuses on economic transparency and measures the stock market performance of the top 20 percent of leading sustainability companies in North America. In addition, the rankings help encourage corporations to invest in sustainability initiatives, as well as reduce the current and future risks associated with these industry wide performance benchmarks.

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.

SOURCE Constellation Energy