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Linking environmental stewardship to our business strategy.

Every source of energy available to us today has its own environmental impact. The responsibility of energy suppliers as well as policy makers is to recognize those impacts, work to abate them and price the full cost into the product.

Transitioning the nation's energy supply system to one that minimizes environmental impacts will require profound changes.  Exelon’s efforts to supply clean energy and promote market-driven solutions support America’s efforts to make this transformation as efficient and effective as possible.

Exelon's environmental strategy builds on four fundamental elements: regulatory compliance, risk management, resource stewardship and leadership.  We continuously assess our strategic options as we better understand the complex environmental, social and economic linkages that challenge our society; we adapt and refine our business strategy to build shareholder value.   

Achieving Exelon 2020

Exelon announced on April 23, 2014 that it reduced or avoided more than 18 million metric tons of greenhouse gas (GHG) emissions in 2013, surpassing its goal of eliminating 17.5 million metric tons of greenhouse gas (GHG) emissions per year by 2020. The company completed the goal established by its Exelon 2020 program seven years earlier than planned through an enterprise-wide approach that included reducing emissions in its operations, helping its customers and communities reduce their emissions, and adding more clean energy on the grid to displace energy from higher carbon sources. The GHG emissions eliminated by Exelon in 2013 are equivalent to the annual:

  • GHG emissions of 3.8 million passenger vehicles,
  • CO2 emissions from nearly 2.5 million homes’ electricity use,
  • carbon sequestered by 14.8 million acres of U.S. forests.
Learn more about Exelon 2020

To learn more about the Exelon 2020 program, the tracking and verification protocols, or our progress toward a clean energy future, download the Exelon 2020 summary PDF.

In support of the program's objectives, we have invested billions in cost-effective, clean energy projects and customer energy efficiency programs.  Our GHG abatement efforts include:

Exelon 2020 Fact SheetExelon is proud to announce that we have achieved our Exelon 2020 goal seven years ahead of schedule – abating over 18 million mtCO2e in 2013!  For more information on the program, download this fact sheet. PDFPDFs require software like the Adobe Acrobat Reader to be viewed properly.

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Exelon joined The Climate Registry in 2011 and is Climate Registered with completed verification and posting of our 2011 - 2013 inventories within their system.  The Climate Registry establishes consistent, transparent standards for carbon footprint reporting throughout North America.    
Logo of The Climate Registry

Measuring Progress and Improvement

As GHG emissions accounting evolves, Exelon makes every effort to respond by updating and expanding its GHG inventory accordingly. Chart GHG Emissions click on image to enlarge  With the EPA's phase-out of the Climate Leaders program in 2011, Exelon has realigned its Inventory Management Plan to conform to the accounting guidance outlined by The Climate Registry (TCR). TCR’s protocols embody GHG accounting best practices and build upon the framework established by the Climate Leaders program.

With the Exelon 2020 program, we integrated performance monitoring of our GHG inventory and Exelon 2020 efforts into Exelon’s quarterly management reporting process. Each of the operating companies that participated in Exelon 2020 documented its progress and results as part of the overall quarterly operational and financial review with the company’s senior leadership.  Exelon verifies its corporate inventory each year to the TCR standards protocol.

Market Solutions
Competition and climate solutions go hand in hand. Over the last decade, organized competitive markets have been instrumental in improving the operating performance of the electricity sector, including the performance of the nation’s fleet of nuclear power plants and new investment in environmentally-preferred generation assets, including gas, wind and solar.

Climate Leadership and Recognition

Because appropriate public policies are crucial to addressing climate change in a meaningful way, Exelon has continued engagement with policymakers and key stakeholders to communicate the necessity of ultimately enacting market-based policies for addressing GHG emissions.

Competitive Markets. We believe that properly designed competitive markets are the best mechanism to ensure cost-effective, reliable power supplies and that such markets have also demonstrated the ability to reduce GHG and air emissions in the most efficient way.

Clean Energy. Exelon has supported development of a number of key environmental rulemakings, under the Clean Air Act including the Mercury and Air Toxics Rule (MATS), the Cross-State Air Pollution Rule (CSAPR), and CHG New Source Performance Standards (NSPS) for new and existing power plants.   

Nuclear Energy. As the largest nuclear fleet operator in the nation, Exelon believes nuclear power is a clean, safe, affordable way to meet energy demands in the United States with minimal direct GHG emissions. We support national policies that will encourage the extended and expanded operation of existing plants. We also support the establishment of an effective approach to spent nuclear fuel management.

CDP.  In 2014, Exelon was named to CDP’s S&P 500 Climate Disclosure Leadership Index (CDLI), marking the fifth time that CDP has recognized Exelon in this category. Exelon is one of four S&P 500 utility companies to appear on the list, which recognizes companies demonstrating a high level of transparency and data quality in their disclosure of climate-related information.

  • More than 5,000 public companies are asked to disclose their carbon emissions and climate change strategies trough CDP. 
  • Exelon has participated in the CDP since 2005 and qualified for the Carbon Disclosure Leadership Index (CDLI) in each of the last three years. Our responses document the maturity of our climate change initiatives and achievement of related objectives.
  • In 2012-2014, Exelon also completed the CDP Water and Supply Chain Surveys, which are newer initiatives within the CDP to further expand the importance of environmental performance disclosure.


Exelon CDP Investor Survey [PDF | 598 KB]PDFPDFs require software like the Adobe Acrobat Reader to be viewed properly.

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Exelon's CDP Water Survey [PDF | 272 KB]PDFPDFs require software like the Adobe Acrobat Reader to be viewed properly.

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Corporate Sustainability Report
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Climate Change