Hero 2

ASHRAE 90.1-2022: The Path to Net Zero Buildings

*ON-DEMAND WEBINAR* Recorded Dec. 5, this timely tutorial details how best to employ the new ASHRAE standard to achieve net zero energy use.

This webinar was originally held on December 5, 2023 and is now available for on demand viewing.
Duration: 1 Hour


The 2022 edition of Standard 90.1 is a departure from business as usual. Here, we explore how to best use these strategies to reduce energy usage in buildings, and how they can help you to move closer to net zero energy use.

In this webinar, recognized expert Mack Wallace, Federal Practice Director for Mechanical Engineering at Jacobs and Executive Vice-President of WiseWatt, LLC, shares his knowledge and understanding of the new ASHRAE 90.1 Standard from his decades of experience on the committee. Mack has been a licensed professional engineer for 48 years, with practical experience in mechanical systems dating back to the 1970s.

Key takeaways from this webinar include:

  • New paths to compliance with the Standard;
  • The role of renewables in reaching the Net-Zero goal;
  • Additional requirements for compliance above the 2019 Standard;
  • Highlights of the changes in each section of the Code.


McHenry Wallace Jr., P.E., Life Member ASHRAE, LEED® AP
McHenry "Mack" Wallace Jr.,P.E., Life Member ASHRAE, LEED® AP, has been a mechanical contractor, consulting engineer and a registered engineer in Texas for over 38 years. Mack is heavily involved on the front lines of the energy conservation industry, having served for the past 24 years on the ASHRAE Standard 90.1 Committee. He was the engineer of record for many award-winning projects, including the Historic Preservation of the Texas State Capitol Building. Mack was director of design/build services for TXU Energy and responsible for developing and guaranteeing the energy savings on many projects. He has worked on many exciting large projects as an Expert with Jacobs over the last 10 years.He has trained hundreds of engineers and architects, world-wide, on ASHRAE 90.1 and is the co-author of the new publication Significant Changes to International Energy Conservation Code and ANSI/ASHRAE/IES Standard 90.1. Currently, Mack has his own company, WiseWatt LLP and is the Federal Mechanical Practice Director for Jacobs.