Scaling the energy efficiency of computing enables broad societal benefits across the economy, the environment, national security, and communities. Carnegie Mellon University and the Scott Institute for Energy Innovation are pleased to join the Energy Efficiency Scaling for Two Decades (EES2) effort, and continue our history of interdisciplinary research to advance the frontiers of innovation in computing and energy. We look forward to working with the Department of Energy, the National Labs, and all of the pledge partners to meet the goal of making computing 1,000 times more energy efficient over the next two decades.