CEG Constellation Energy Grp. Common Stock

Global Industry Leader Tapped to Provide Steam Turbine Generator Technology for Advanced Design U.S. EPR Nuclear Plants BALTIMORE and PARIS, Nov. 13 /PRNewswire-FirstCall/ -- UniStar Nuclear Energy (UNE), a joint venture between EDF and Constellation Energy (NYSE:CEG), and Alstom, a global leader in power generation, today announced that the companies have signed a letter of intent reflecting UNE's selection of Alstom to supply a minimum of four turbine generators for UNE's planned fleet of advanced-design nuclear plants in the United States. "This agreement with Alstom gives us certainty in the global supply chain that Unistar Nuclear Energy will have vital turbine components for our first four U.S. EPRs," said George Vanderheyden, president and chief executive officer of UniStar Nuclear Energy. "We selected Alstom because it is the world's leading provider of nuclear steam turbine generators. With its Arabelle technology, Alstom offers the most advanced and efficient technology." Vanderheyden further emphasized that a final decision to build the first U.S. EPR has yet to be made but noted the agreement with Alstom positions UNE to begin ordering steam turbine generators next year. The agreement with Alstom follows Constellation Energy's announcement in July that it had formed a strategic joint venture with EDF, the world's largest operator of nuclear plants, to create UNE to develop and deploy a fleet of new nuclear power plants in the United States. UNE is itself an expansion of the partnership between Constellation Energy and AREVA announced in September 2005. The joint venture's prime reactor technology, which is already under construction in Europe, is AREVA's U.S. Evolutionary Power Reactor (EPR) Philippe Joubert, Alstom executive vice president and president of Alstom Power Systems, said the agreement solidifies UniStar Nuclear Energy's position as a leader in the U.S. nuclear renaissance. He said Alstom will allocate the resources that will enable it to support UniStar Nuclear Energy's December 2015 target for completing its first nuclear power plant. "We are pleased to have been selected as Unistar's supplier of choice for essential turbine technology," said Mr. Joubert. "As the world's largest supplier of nuclear turbine systems, we bring both experience and a history of innovation that make us the right partner at the right time for UniStar." Alstom, with operations in 70 countries, brings international expertise and extensive knowledge of local markets as a fully integrated provider of clean, efficient and technologically advanced power generation solutions in all key energy markets (including coal, natural gas, nuclear and hydro and wind. The world's No. 1 supplier of nuclear turbine systems, Alstom has installed more than 178 units worldwide, meaning that more than 30 percent of the entire worldwide nuclear installed base uses Alstom equipment About Alstom Alstom (http://www.alstom.com/) is a global leader in the world of power generation and rail infrastructure and sets the benchmark for innovative and environmentally friendly technologies. Alstom builds the fastest train and the highest capacity automated metro in the world, and provides turnkey integrated power plant solutions and associated services for a wide variety of energy sources, including hydro, gas, coal and wind. About 25 percent of the world's electricity produced is generated by Alstom technology. The Group employs 65,000 people in 70 countries, and had orders of euro 19 billion in 2006-07 About UniStar UniStar Nuclear Energy (http://www.unistarnuclear.com/), a strategic joint venture between Constellation Energy and EDF, is powering the nuclear renaissance in North America through industry leadership, disciplined business practices and effective risk-management. Based in Baltimore, UniStar Nuclear Energy provides the licensing, construction and operating services needed to support the expansion of clean, safe and sustainable nuclear energy in the United States. UNE is an expansion of the pioneering partnership established between Constellation Energy and Areva to develop and deploy a fleet of standardized nuclear power plants based on the Areva EPR technology. About Constellation Energy 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. About EDF The EDF Group, one of the leaders in the energy market in Europe, is an energy specialist that is active in all the businesses of electricity: production, transport, distribution, energy supply and trading. The Group is the leading electricity producer in Europe. In France, it has mainly nuclear and hydraulic production facilities where 95 percent of the electricity output involves no CO2 emissions. EDF operates over 1,200,000 km of low and medium voltage overhead and underground electricity lines and around 100,000 km of high and very high voltage networks. The Group is involved in supplying energy and services to close to 40 million customers around the world, including more than 28 million in France. The Group generated consolidated sales of euro 58.9 billion in 2006, of which 42 percent was in Europe excluding France. Net income (Group share) stood at euro 5.6 billion, with net income from ordinary operations at euro 4.2 billion. EDF is listed on the Paris Stock Exchange and is a member of the CAC 40 index. About AREVA AREVA Inc. has manufacturing facilities in 41 countries and sales network in more than 100. It offers customers reliable technological solutions for carbon-free power generation and electricity transmission and distribution. AREVA is the world leader in nuclear power and it has invested $200 million in the U.S. EPR. AREVA's 61,000 employees are committed to continuous improvement on a daily basis, making sustainable development the focal point of the group's industrial strategy. AREVA, headquartered in Bethesda, Md., USA, reported sales revenue of euro 5.3 billion the first half of 2007 and net income of euro 295 million for the same period. DATASOURCE: Constellation Energy CONTACT: Lori A. Vidil of UniStar Nuclear Energy, +1-410-470-7433, ; or Maureen Brown of Constellation Energy, +1-410-470-7433, ; or Melina Georgitsis of Alstom Power Systems, +1-860-938-0531, ; or Andy Merrill, , or Steven Goldberg, , both of Finsbury Group, +1- 212-303-7600 Web site: http://www.constellation.com/ http://www.alstom.com/ http://www.unistarnuclear.com/ Company News On-Call: http://www.prnewswire.com/comp/084087.html

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