Brian Hartmann, President

Brian Hartmann is President of NorthStar Clean Energy, a wholly owned subsidiary of CMS Energy (NYSE: CMS). He was named to this position in 2021. In this role Brian has responsibility for Strategy, Operations, and Financial outcomes across NorthStar.

Previously, Brian was Executive Director of Corporate Strategy for CMS and Consumers Energy where he led the company’s strategic planning process and initiatives focused on improving customer experience, optimizing the grid to reduce customer costs, and decarbonizing the electric and natural gas systems.

Prior to joining CMS Energy, Brian was an Associate Partner with McKinsey and Company and a leader in McKinsey’s Electric Power and Natural Gas service line. He served clients on a wide range of topics including setting strategy, developing digital capabilities, and transforming operations.

Brian earned a Bachelor’s Degree in Business Administration and a Master’s Degree in Business Administration, both from the Ross School of Business at the University of Michigan, as well as a Master’s Degree in Environmental Science from the School of Natural Resources at the University of Michigan. He also holds a certification in Financing and Deploying Clean Energy from Yale University.

Outside of work, Brian enjoys spending time outdoors kayaking, hiking, and taking pictures of wildlife.