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News Release


From:    Commonwealth Edison                             FOR IMMEDIATE RELEASE
         Media Relations                                 Friday, March 28, 2003
         P.O. Box 805379 Chicago, IL 60680-5379

Contact: Tabrina Davis
         312-394-3500

                  Illinois Commerce Commission Issues Orders to
            Move Forward the State's Competitive Electric Marketplace

CHICAGO - The  Illinois  Commerce  Commission  (ICC)  today  issued  orders that
resolve  three cases  pending  before the  Commission  and address key issues in
Illinois' continued  transition to a competitive  electricity  marketplace.  The
orders were largely consistent with solutions developed and supported by a broad
coalition of municipal, business and consumer advocate groups and ComEd.

The  ICC's  orders,  and the  coalition's  proposals,  will  provide  a range of
benefits  for electric  consumers in ComEd's  northern  Illinois  service  area,
including:

     o    New energy assistance and environmental programs;
     o    Better choices and more savings for business customers;
     o    More opportunities for alternative suppliers to compete; and
     o    Continued reliability improvements in ComEd's electric system.

"The agreement  reflects a common vision for the future of Illinois," said Frank
M. Clark,  ComEd's  president.  "We share the goal of a competitive  marketplace
with a diversity of  suppliers,  with good choices for  customers and a reliable
electric  system,  and today's action  represents a major stride in that effort.
This  builds on the  successful  steps  Illinois  has  already  taken to promote
electric  competition,  lower  electric  rates,  develop an  abundant  supply of
electric generation and improve reliability."

For example,  Clark noted that ComEd has reduced  power  outages by more than 50
percent since 1998.

Members of the coalition include:  the City of Chicago,  the Cook County State's
Attorney,  the Citizens Utility Board, the Illinois  Manufacturers  Association,
the Illinois  Retail  Merchants  Association,  the Building  Owners and Managers
Association,  Trizec-Hahn  (managers of the Sears  Tower),  the National  Energy
Marketers,  Constellation New Energy,  MidAmerican  Energy,  Peoples Gas, Cilco,
Nicor, AmerenEnergy Marketing and Blackhawk Energy Services.

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Commonwealth  Edison is a unit of Chicago-based  Exelon Corporation (NYSE: EXC),
one of the nation's  largest  electric  utilities  with more than $15 billion in
revenues  and a  customer  base of  five  million.  ComEd  provides  service  to
approximately  3.5 million  customers  across  Northern  Illinois,  or nearly 70
percent of the state's population.