Expanding Beyond PUE and WUE to Drive Smarter Data Center Optimization

June 18, 2026

Over the past two decades, PUE and WUE have become global standards for assessing data center efficiency. But are those metrics still the right foundation for driving data center efficiency in an era when the scale, complexity, and power density of data centers are increasing in unprecedented ways?

In this Ask the Expert, we talk with Danielle Rossi, Global Director of Mission Critical Cooling at Trane, about how the data center industry needs more comprehensive approaches to measuring and driving efficiency. Rossi discusses: 

  • The limitations of PUE and WUE as data centers increase in power density, scale, and complexity of operations
  • Why advanced data centers, including AI facilities, require more comprehensive metrics for assessing efficiency for power, water, and other resources
  • Emerging metrics for measuring power efficiency, water efficiency, and sustainability that are better aligned with the operations of data centers today and in the future, including PP, DCeP, and CPE
  • Success strategies for adopting these advanced metrics in tailored ways that will maximize the efficiency gains that organizations achieve in each of their facilities

Download Data Center Frontier’s Ask The Expert with Danielle Rossi today to learn about how your organization can significantly increase efficiency by moving beyond PUE and WUE.