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Joseph   Dominguez

CEO, Exelon Generation


Joseph Dominguez is the Chief Executive Officer of Exelon Generation, which employs 14,000 workers, produces more than 31,000 megawatts of power and serves more than 20 million homes and businesses with clean energy.  With revenues of more than $17 billion and total assets of $49 billion, Exelon Generation comprises both the nation's lowest-carbon fleet of power plants and the largest competitive energy supplier, Constellation. Together, they are America's clean energy leader, producing over 10% of the nation's clean energy and helping America transition to a clean, sustainable future.  

As CEO, Dominguez oversees Exelon Generation's clean energy fleet of nuclear, wind, solar, hydroelectric and natural gas facilities in 19 states, and Constellation, the nation's top competitive retail and commodities business, which provides electricity, natural gas, and other energy-related products and services to two million residential, public sector and business customers nationwide, including more than two-thirds of the Fortune 100.

When Exelon completes the planned separation of its generation and utility businesses in 2022, Dominguez will become CEO of the future Constellation, pairing the nation's leading customer-facing energy solutions platform with the nation's largest producer of clean energy. The transaction is pending regulatory approvals.

Professional History

Previously, Dominguez served as CEO of ComEd, an Exelon company, which powers the lives of more than four million residential and business customers, or 70 percent of Illinois’ population. In that role, he was responsible for the safe and reliable delivery of electricity to customers and oversight of the management of the electric grid for over four million customers in Chicago and most of northern Illinois. 

Prior to joining ComEd, Dominguez served as executive vice president of governmental and regulatory affairs and public policy for Exelon, where he led the development and implementation of federal, state, and regional governmental, regulatory, and public policy strategies.  

Prior to joining Exelon, Dominguez was a partner in the law firm of White and Williams, LLP, with a broad-based litigation practice counseling large and small corporations, institutions, and government entities. He is a former assistant U.S. Attorney, Eastern District of Pennsylvania.

Civic Involvement

Dominguez serves on several boards of directors and councils, such as Hispanics in Energy, the United Way, the Adler Planetarium and the Lyric Opera House. 


Dominguez earned his bachelor’s degree in mechanical engineering from the New Jersey Institute of Technology. He earned his law degree from Rutgers University School of Law, where he graduated magna cum laude, and was recognized as a Dean’s Scholar.