Charlie Stevens (Program Engineer, Colorado Energy Office) Charles Stevens serves as a Program Engineer for the Colorado Energy Office. His background includes significant experience in solar performance engineering, utility-scale solar power plant design, commissioning, and testing, as well as developing contractual agreements for Solar EPCs and Power Purchase Agreements (PPA). Previously, Charles held technical leadership positions at First Solar and Kiewit. He is a Professional Engineer and holds degrees in Nuclear Engineering and Computer Science in Engineering from Arizona State University.