Colleen Calhoun

Colleen Calhoun is an Operating Partner at Engine Ventures. Colleen also serves as a Board Member at Vast, Nabors Energy Transition Corp II, Via Separations, Nabors Energy Transition Corp, Quaise, XL Fleet now Spruce Power, Evergreen Climate Innovations, and Helios Consulting. Colleen previously held the title of Vice President and General Manager XL Grid at XL Fleet now Spruce Power. With a background in Chemical Engineering and a Master of Business Administration from the University of Michigan, Colleen has a strong expertise in clean tech, energy management systems, and strategic planning. At GE Current, Colleen successfully grew the software and digital controls business and led the divesture of Current in 2019.