Exelon Joins the Pew Center on Global Climate Change.

CHICAGO -- Exelon Corporation announced today it has joined the Pew Center on Global Climate Change as a member of the organization's Business Environmental Leadership Council (BELC). The BELC was established by the Pew Center in 1998 and is comprised of mainly Fortune 500 companies representing a diverse group of industries. The members share the belief that enough is known about the science of climate change to begin taking reasonable steps now to protect the climate.

"We are pleased to join with the Pew Center and other BELC members in advocating for responsible policies that address global climate change while at the same time assuring continued economic growth," said John W. Rowe, chairman, president and CEO, Exelon. "Our BELC membership will enable us to have a stronger voice in the national debate on future policy."

The Pew Center on Global Climate Change recently assisted Exelon in developing its goal, strategy and program for reducing its greenhouse gas emissions by eight percent from 2001 levels by the end of 2008 as part of the company's participation in the U.S. Environmental Protection Agency's Climate Leaders Program.

Exelon's actions on climate change are consistent with its overall environmental strategy. Exelon's environmental priorities include increasing renewable energy supplies, promoting efficient use of electricity and natural gas, contributing to the development of a sound national policy addressing climate change, and preserving the option for low carbon intensity technologies, including nuclear, for the future.

"The private sector is increasingly taking independent steps to address climate change because companies understand that ignoring the problem could bring greater costs in the long run," said Eileen Claussen, president of the Pew Center. "Exelon recognizes that we must act now to address climate change. We look forward to working with them on both market-based solutions and in shaping sound public policy in the United States and around the world."

BELC members represent a variety of industries including energy, automobiles, manufacturing, chemicals, pharmaceuticals, metals, mining, paper and forest products, consumer goods and appliances, telecommunications, and high technology. Individually and collectively, these companies are demonstrating that it is possible to take action to address climate change while maintaining competitive excellence, growth and profitability. The companies together generate annual revenues in excess of $600 billion and employ more than 1.7 million people.

The Pew Center receives no financial assistance from BELC members. The companies demonstrate leadership in addressing climate change by establishing and meeting emissions reduction objectives; investing in new, more efficient products, practices, and technologies; and supporting action to achieve cost-effective emissions reductions.

The other members of the BELC are: ABB; Air Products and Chemicals; Alcoa; American Electric Power; Baxter International; Boeing; BP; California Portland Cement Co.; CH2M HILL; Cinergy Corp.; Cummins Inc.; Deutsche Telekom; DTE Energy; DuPont; Entergy; Georgia-Pacific; Hewlett-Packard Company; Holcim; IBM; Intel; Interface Inc.; John Hancock Financial Services; Lockheed Martin; Maytag; Novartis; Ontario Power Generation; PG&E Corporation; Rio Tinto; Rohm and Haas; Royal Dutch/Shell; SC Johnson; Sunoco; Toyota; TransAlta; United Technologies; Weyerhaeuser; Whirlpool; and Wisconsin Energy Corporation.

The Pew Center was established in May 1998 by the Pew Charitable Trusts, one of the United States' largest philanthropies and an influential voice in efforts to improve the quality of the environment. The Pew Center is a nonprofit, non-partisan and independent organization dedicated to providing credible information, straight answers and innovative solutions in the effort to address global climate change. The Pew Center is led by Eileen Claussen, the former U.S. assistant secretary of state for oceans and international environmental and scientific affairs. For more information about global climate change and the activities of the Pew Center and the BELC, visit www.pewclimate.org.

Exelon Corporation is one of the nation's largest electric utilities with approximately 5.2 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 5.2 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.