CHICAGO, Feb 17, 2005 /PRNewswire-FirstCall via COMTEX/ -- Exelon today announced that it is in advanced negotiations with Bank One Plaza to lease space for its consolidated Chicago headquarters.

Exelon is consolidating its downtown Chicago locations to support productivity by eliminating travel time between the company's downtown sites and to reduce long-term occupancy costs. Currently, Exelon leases office space at Bank One Plaza, the AT&T Building, and One Financial Place.

Exelon will make its new office space "green," using criteria established by the U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED) program. Exelon has committed to achieving a LEED status of silver or better and will incorporate elements of sustainable design and energy efficiency in its headquarters.

"As one of the country's largest utilities, it's our responsibility to be a leader in environmental stewardship. Energy efficiency works, and we want our headquarters to be an example of that," said John W. Rowe, Exelon's chairman, president and CEO. "I hope the space will be a positive and productive atmosphere for our employees and that it will demonstrate to other companies what can be done to make office buildings green."

"Bank One Plaza has provided a good home to many of our employees and will provide an excellent foundation for what we're trying to do with sustainable design in our office space," said Ruth Ann Gillis, senior vice president of Exelon and executive vice president of ComEd. "And using the available space here rather than building a new building is one way in which we are promoting efficiency."

Exelon is likely to relocate to space that will be vacated by law firm Sidley & Austin. Approximately 700 to 800 of Exelon's 18,000 employees are expected to occupy 200,000 to 250,000 square feet, by early 2007. Bank One Plaza is located at 10 S. Dearborn St.

Vendors working with Exelon include ISI, interior designer; ESD, mechanical, electrical and plumbing engineer; HJKessler, LEED consultant; and Turner Construction, construction manager.

Exelon Corporation (NYSE: EXC) is one of the nation's largest electric utilities with approximately 5.1 million customers and more than $14 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 5.1 million customers in northern Illinois and Pennsylvania and gas to more than 460,000 customers in the Philadelphia area. Exelon is headquartered in Chicago and trades on the NYSE under the ticker EXC.

SOURCE Exelon Corporation

Jennifer Medley of Exelon Corporation, +1-312-394-7189

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