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Joseph Nigro Exelon Corp Sr EVP and CFO

Joseph   Nigro

Senior Executive Vice President and Chief Financial Officer, Exelon Corporation

A 30-year veteran of the energy industry, Nigro is Exelon’s chief financial officer and is responsible for overseeing the execution of all financial activities including the capital investment process, financial reporting, planning, audit, tax and insurance. Additionally, in his role, Nigro leads the treasury function in developing and implementing financing plans as well as the investor relations department.  Nigro is a member of the Exelon Executive and Risk Management Committees.


Professional History

Nigro served most recently as CEO of Constellation, Exelon’s competitive retail and wholesale businesses. He was responsible for the marketing of electricity, natural gas and other energy-related products and services to Constellation customers, as well as ensuring the optimization of Exelon’s generation portfolio by obtaining maximum value for power produced, while managing risk for the company and its shareholders. Constellation has a business presence in 48 states, Washington, D.C., parts of Canada and the United Kingdom, and is the leading power marketer to commercial and industrial customers and a top 10 marketer of natural gas in the United States.

Prior to his CEO role, Nigro served as senior vice president, portfolio strategy for Constellation. In that role, he led the portfolio management, structuring, quantitative analysis, transmission analysis, fundamental forecasting, strategic business systems and commercial transactions functions. Additionally, Nigro was responsible for the development and implementation of portfolio strategy; pricing and commercial evaluation processes for structured transactions, large capital projects and acquisition opportunities; commodity price forecasting; financial transmission strategy and the business oversight of the commercial group technology budget.

Nigro joined the PECO Power Team in 1996 and held roles of increasing responsibility for the trading and marketing organization throughout his tenure. Prior to joining Constellation, he was the senior vice president, portfolio management and strategy for the Exelon Power Team. In addition, he led the merger integration for the Exelon Power Team wholesale trading and marketing organization with Constellation Energy. Previous roles included: vice president, structuring and portfolio management; director, commercial transactions; manager, Northeast Region, responsible for the trading and marketing of Exelon’s assets in New England; integration lead - Power Team/Sithe New England Holdings; manager, financial trading - hedge book; and financial transactor.  

Prior to joining Exelon, Nigro spent seven years with Phibro Energy, Inc., an independent oil trading and refining company, in Greenwich, Conn., and Houston.​

Civic Involvement

Nigro serves on the board of directors of the National Aquarium, one of the world’s top environmental education organizations and an important anchor of regional tourism in Baltimore’s Inner Harbor.



Nigro received his bachelor’s degree in economics from the University of Connecticut. He has also completed the Exelon Leadership Institute Program through the Northwestern University Kellogg School of Management, the University of Chicago Executive Development Program and the MIT Reactor Technology Course for Utility Executives. ​



Nigro and his wife, Melissa, reside in Baltimore.



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