Exelon Appoints John A. Canning Jr. to Board of Directors

Fri Aug 1, 2008 9:00am EDT

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Chairman of Madison Dearborn Partners and Federal Reserve Bank of
                      Chicago joins Exelon board
CHICAGO--(Business Wire)--
Exelon today announced the appointment of John A. Canning Jr. to
its board of directors. Canning is chairman and co-founder of Madison
Dearborn Partners, LLC (MDP) and chairman of the Federal Reserve Bank
of Chicago.

   "John brings a distinguished track record of thoughtful leadership
and financial expertise to the board," said John W. Rowe, Exelon's
chairman, president and CEO. "We are pleased to have a seasoned
executive of his caliber join us."

   Canning is chairman of MDP, a Chicago-based management buyout and
special equity investment firm he co-founded in 1993. He previously
served as president and then CEO of MDP. Before founding MDP, Canning
spent 24 years with First Chicago Corp., including serving as
executive vice president of The First National Bank of Chicago and
president of First Chicago Venture Capital. He earned his bachelor's
degree from Denison University and a law degree from Duke University.

   Canning also serves as chairman of the Federal Reserve Bank of
Chicago, a position he has held since November 2007. Prior to that, he
was deputy chairman of the Federal Reserve Bank of Chicago. He joined
the board in 2004. Canning currently serves on the boards of directors
of The Economic Club of Chicago, Milwaukee Brewers Baseball Club,
Northwestern Memorial Hospital, TransUnion Corp. and Children's Inner
City Educational Fund; and on the boards of trustees of the Big
Shoulders Fund, The Field Museum, Museum of Science and Industry and
Northwestern University. He is a Commissioner of the Irish Pension
Reserve Fund and a Trustee and Chairman of The Chicago Community Trust

   Exelon's 15-member board appointed Canning on July 29. His
appointment is effective today.

   Exelon Corporation is one of the nation's largest electric
utilities with nearly $19 billion in annual revenues. The company has
one of the industry's largest portfolios of electricity generation
capacity, with a nationwide reach and strong positions in the Midwest
and Mid-Atlantic. Exelon distributes electricity to approximately 5.4
million customers in northern Illinois and Pennsylvania and natural
gas to 480,000 customers in the Philadelphia area. Exelon is
headquartered in Chicago and trades on the NYSE under the ticker EXC.

Paul Elsberg
Exelon Corporate Communications
312-394-4879

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