The REmotely-managed Power Aware Computing Systems and Services (REPACSS) resource is a high-performance computing (HPC) cluster supported by multiple forms of energy developed to support research into advanced data center control for running scalable scientific workflows and data-intensive research in remotely managed settings. The focus of the project is on improvements to data center and infrastructure control to provide adaptability to emergent conditions and ability to adjust workloads to match data center load conditions including the availability and cost of electrical power. The cluster supports intelligent workload placement and adaptive scheduling tools to align computational activity with the goal to match as much of the workload as possible to low-cost energy availability. REPACSS also features advanced remote management capabilities and automation tools to manage scientific workflows that are specifically targeted to be adopted at scale by other resource facilities and industry.