Industry data from the Uptime Institute consistently shows that average rack utilization is 40–60% of rated capacity. If your racks are rated for 10 kW each but you haven't measured the actual draw, start with 5–6 kW as your assumption. Use this TradeOff Tool to estimate the power required by a data center with traditional, or AI/HPC servers. Configure different server, storage, and design attributes to explore different scenarios. Each rack must safely deliver stable electrical power to dozens of servers, switches, and storage devices while maintaining reliability, airflow efficiency, and electrical safety. Vertiv projects that. The datacenter industry has witnessed a dramatic transformation in rack power density over the past 25 years, accelerating from gradual increases in the virtualization era (5-15kW) to exponential growth in the AI era (100-350kW). The paper will describe methods for calculating power requirements and how to use those requirements to select an appropriate power distribution configuration.