Calvin Butler

Calvin Butler became President and CEO of Exelon Corporation in 2023, leading the largest regulated utility company in the United States following Exelon's February 2022 separation from Constellation Energy (which took the nuclear and competitive generation fleet). The "new Exelon" is a pure-play regulated utility operating six electric and gas distribution utilities serving approximately 10 million customers across Illinois, Pennsylvania, Maryland, New Jersey, Delaware, and Washington D.C. Butler's strategic position is defined by Exelon's scale advantage: with six utilities across major Mid-Atlantic and Midwest metropolitan areas, the company has one of the largest capital investment opportunities in the U.S. utility sector. Grid modernization, EV infrastructure, clean energy integration, and resilience investments across these dense, high-load urban territories provide a long runway for rate base growth. His key challenges include managing the complexities of operating across six different regulatory jurisdictions (each with its own rate-setting process, energy policies, and political dynamics), navigating the ComEd deferred prosecution agreement related to a prior corruption scandal, integrating data center load growth into urban grids with capacity constraints, and maintaining affordability for customers in diverse economic environments. Butler's success in securing constructive rate case outcomes, executing the capital investment program efficiently, and maintaining regulatory relationships across six states drives Exelon's stock performance.