ASHRAE Miami’s Technical Lunch, Minimizing Harmonic Distortion from VFD’s & LEED v5 Supports Actual Operational Energy Performance, was held on September 9th, 2025, at 12pm, at the 94th Aero Squadron in Miami.

The two presenters were Peter Wilder and Karen Jernigan. Peter Wilder is a HVAC Sales Application Engineer, with 10 Years with ABB and 16 years in the Industry.

Karen Jernigan is the Director of Market Transformation & Development for the U.S. Green Building Council in Florida. She has a proven track record supporting engineering teams, architects, and developers in delivering LEED-certified, net-zero, and Passive House projects.

Overview of presentation: 1.Why do drives produce harmonics. 2.Types of harmonics and their effects. 3.IEEE 519-2022 basics. 4.Harmonic solutions for drives. 5.Selecting the correct VFD type and managing cost.

Join us for the next meeting on October 14th, at the 94th Aero Squadron in Miami. The Guest Speaker is Larry Fletcher, Commercial/Technical Director at RGF Environmental Group, Inc., where he leads the development of indoor air quality (IAQ) systems. The topic is ASHRAE 185.2 Testing for Successful UV-C Application in The Real World.

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