Michelle joined Optimal in 2021. She has over thirty years of experience in the commercial & industrial sector and combines her knowledge of energy efficiency programs to advocate for the needs and sustainability goals of those customers and the electric and natural gas utilities that serve them. At Optimal, Ms. Keller provides insight into effective efficiency program design, review, and implementation as well as collaborative consultation for the evaluation of energy savings measures for new construction and existing facilities. Prior to joining Optimal, Michelle led her own consulting business supporting energy efficiency projects in commercial, institutional, and K-12 facilities in ten states, and held long-term implementation subcontracts with Vermont utilities. She specializes in understanding how to leverage relationships and bring state and utility efforts together with engaged customers to foster real progress toward the ambitious efficiency, resource demand management, equity, and carbon reduction goals that drive current efforts in this field.