Constellation Energy (NYSE: CEG) announced that it has been named a Platts Top 250 Global Energy Company for 2010. The company ranked first globally in the category ?Independent Power Producers (IPPs) & Energy Traders,? and 31st on overall performance among all energy companies globally. Platts' rankings are based on asset worth, revenue, profit and return on invested capital.

?Being recognized by Platts as the leading Independent Power Producer in the world is a reflection of our commitment to a diverse generation portfolio and an integrated and innovative commercial platform, which enables Constellation Energy to deliver customized solutions to the marketplace and post strong results, even in challenging commodity cycles,? said Kathleen Hyle, senior vice president, Constellation Energy, and chief operating officer of the company's commercial division. ?This recognition also underscores the considerable effort of our employees to increase efficiency and drive innovation, so I am particularly pleased that this hard work has been recognized within the industry.?

The 2010 rankings were announced at the Platts Top 250 Global Energy Companies Awards and Leadership Dinner on Nov. 2 in Singapore.

?Maryland-based Constellation Energy Group Inc. can be particularly pleased with its exceptional rise from 185th last year to 31st, putting it in the number one slot sectorally for IPPs, ? wrote Platts in an overview of the Top 250 Global Energy Company Rankings. ?Having suffered a tough price and liquidity environment, along with the rest of the U.S. power sector in 2008, Constellation's restructuring appears to have brought quick benefits.?

All companies on the list have assets greater than U.S. $2 billion. The fundamental and market data comes from a database compiled and maintained by Capital IQ Compustat, a business of Standard & Poor's, which, like Platts, is a division of the McGraw-Hill Companies.

About Constellation Energy

Constellation Energy (www.constellation.com) is a leading supplier of energy products and services to wholesale and retail electric and natural gas customers. It owns a diversified fleet of generating units located in the United States and Canada, totaling approximately 9,000 megawatts of generating capacity, and is among the leading advocates for the development of new nuclear plants in the United States. The company delivers electricity and natural gas through the Baltimore Gas and Electric Company (BGE), its regulated utility in Central Maryland. A FORTUNE 500 company headquartered in Baltimore, Constellation Energy had revenues of $15.6 billion in 2009.

Constellation Energy
Media Contact:
Lawrence McDonnell
410-470-7433
or
Investor Contact:
Carim Khouzami
410-470-6440