Katrin Klingenberg
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PHIUS promotes the adoption of Climate Specific Passive Building principles in North America through consultant training and certification, project certification, and educational efforts for building professionals and the general public. Since 2008, PHIUS has trained over 2,000 designers, builders and energy raters, and certified over 700 CPHC (Certified Passive House Consultants). PHIUS has certified and pre-certified more than 230 passive houses and buildings throughout the United States, Canada and internationally under its project certification program. PHIUS consults on projects in all the North American climate zones as well as on projects abroad.

The Passive House Alliance US (PHAUS), a partner organization, is a chapter-based membership organization that serves the Passive House community through public outreach, networking opportunities, advocacy for policy support and educating professionals and consumers.

In 2003, Ms. Klingenberg designed and built the first home built to meet the Passivhaus standard in the United States and outside of Europe. She has designed and consulted on numerous successful Passive House projects across North America’s varied climate zones. In addition to her executive role she leads the curriculum development for the PHIUS Certified Passive House Consultant training. She also directs the technical and research programs of PHIUS, and is a licensed architect in Germany."


Lisa White serves as the Certification Manager for the Passive House Institute US (PHIUS) and has been with PHIUS since 2012. She is also an instructor for Certified Passive House Consultant (CPHC®) and WUFI Passive software training. White holds a degree in Environmental Sustainability with a minor in Architecture from the University of Illinois at Urbana-Champaign, and a Master’s in Energy Engineering from the University of Illinois at Chicago.

White works on certification program development and is a member of PHIUS’ technical committee. She also provides consulting services on static and dynamic energy modeling in WUFI Passive, THERM modeling, and project planning specific to passive building principles. White has presented at numerous conferences and events, including Greenbuild, PHIUS Annual North American Passive House Conferences, the Affordable Comfort Institute national conference, and Facades+.