What are engineers making time to read? Here is the five-item punch list of the most popular news articles, features, and columns at ESmagazine.com.

  1. 2023 20 to Watch: Women in HVAC Contest Winners

  2. Hydrogen Battery Storage Room Ventilation: The Evolving Codes and Standards

  3. The Three Stages to Controlling a Chiller and its Primary-Secondary Pumps

  4. Newly Released ASHRAE 90.1-2022 Includes Expanded Scope for Building Sites

  5. What’s Next: Specifying the Right R-410A Replacement