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Press Releases

Jun 2017

PHIUS Receives Grant for Commercial Passive Building Resource Center

PHIUS received a grant from the Illinois Clean Energy Community Foundation to create a Commercial Passive Building Resource Center.

The online center, for developers, architects, engineers, policymakers, and investors, will offer information on the PHIUS+ standard, design tools, information on the PHIUS+ certification process, and case studies of successful commercial passive buildings.

Jun 2017

PHIUS receives Intent to Matter: Outstanding Organization award at USGBC-IL 2017 Emerald Awards

The U.S. Green Building Council Illinois (USGBC-Illinois) awarded PHIUS the 2017 Emerald Award for outstanding sustainability projects. PHIUS received the Intent to Matter: Outstanding Organization award for its national impact in combating global climate change by advocating for a mainstream high-performance passive building standard.

Sep 2016

PHIUS Announces Winners of 2016 Passive Projects Competition at 2nd Annual Design Awards Ceremony

Passive House Institute US (PHIUS) awarded the finalists of the 2016 Passive Projects Competition during the annual Design Awards ceremony on Thursday, September 22, 2016 at the 11th Annual North American Passive House Conference in Philadelphia. Back by popular demand, this juried competition recognizes exemplary fully-certified passive building projects of all types and climate zones.

Competition entries were narrowed down to a competitive pool of 16 finalists across all project types, with roughly half of the projects qualifying under the Multifamily, Commercial, and/or Affordable award categories.

Jun 2016

PHIUS Launches Multifamily Resource Center Website to Support Developers Pursuing Passive Building Certification

Passive House Institute US (PHIUS) is excited to announce the release of the PHIUS Multifamily Resource Center, an online repository of information, tools, case studies, and best practices to support multifamily developers in the design, financing, and execution of PHIUS+ certified projects.

Visit to learn more and to explore this new resource.

Jun 2016

Zachary Semke of Hammer & Hand to Deliver Opening Keynote Address at PHIUS 11th Annual North American Passive House Conference

Passive House Institute US (PHIUS) announced that Zachary Semke, Director of Business Development & Chief Evangelist at Hammer & Hand, will deliver the opening keynote address at the 11th Annual North American Passive House Conference (NAPHC) on the first day of core conference Friday, September 23, 2016 in Philadelphia. Joe Lstiburek, Principal at Building Science Corporation, will deliver the technical keynote on the second day of core conference Saturday, September 24, 2016.

Jun 2016

PHIUS+ Certified and Pre-Certified Projects Surpass 1M SF Milestone

Passive House Institute US (PHIUS) announced that PHIUS+ Certified and Pre-Certified projects now total more than 1 million square feet across 1,200 units nationwide. The cost-optimized PHIUS+ 2015 Standard is spurring new growth in passive buildings from coast to coast, with the most significant gains coming from the multifamily housing sector. 

Jun 2016

Illinois Clean Energy Community Foundation recognizes PHIUS+2015 Passive Building Standard as one of the best paths to Zero Energy and Carbon

Passive House Institute US (PHIUS) is excited to announce that the Illinois Clean Energy Community Foundation has recognized the PHIUS+2015 Passive Building Standard as an approved pathway for eligibility under the Foundation’s Net Zero Energy Building Program. Projects pursuing PHIUS+2015 certification are eligible to receive up to $1 million in funding from the Foundation, with payment contingent on the project demonstrating actual measured net zero performance after one year.

To qualify, applicants must be a 501(c)(3) nonprofit organization, local government agency serving Illinois residents, or a college or university. Full program details and application requirements are available on the Foundation’s Net Zero Energy Building Program website. The Foundation began accepting applications on June 1, 2016.

May 2016

PHIUS Certifies first PHIUS+ 2015 Passive House in Springfield, Illinois Region

Passive House Institute US (PHIUS) announced that it has issued PHIUS+ 2015 Passive House certification to the Wesley Chapel project in Chatham, Illinois built by PHIUS Certified Builder David Cation, owner of Cation Construction based in Springfield, Illinois. This home is the first passive building project to be certified in the greater Springfield region.

Apr 2016

PHIUS Opens Call for Papers for 11th Annual N.American Passive House Conference

Submission deadline: April 22! Topics for 2016 as suggested by PHAUS members and our passive building community include, but are not limited to:

  • Affordable Multifamily Passive Building Design | Development | Measured Data
  • Case Studies | New & Retrofit | All Climates with focus on actual measured performance data compared to modeled, actual built cost data
  • Mechanical Systems Design for Passive Houses & Buildings | All Types of Buildings, Climate Specific
  • Materials and Building Science | For new & retrofit applications
  • Design methodology, successful QAQC, business and market strategies
Jan 2016

PHIUS issues first-ever PHIUS+ 2015 Passive Building and Source Net Zero certification to Rocky Mountain Institute’s new Innovation Center

Passive House Institute US (PHIUS) today announced that it has, for the first time ever, issued the PHIUS+2015 Passive Building and Source Net Zero certification to Rocky Mountain Institute’s (RMI) new office building and convening center, the Innovation Center in Basalt, Colo. 

Nov 2015

PHIUS Executive Director Katrin Klingenberg wins Women in Sustainability Leadership Award

Washington – November 18, 2015 – WASHINGTON – Passive House Institute US (PHIUS) co-founder and Executive Director Katrin Klingenberg has been awarded one of Green Building & Design (gb&d)’s Women in Sustainability Leadership Awards.

“I am proud to receive this honor and to be counted among this remarkable group of women. I’m grateful for the community of forward-thinking, committed passive house professionals and advocates who have made passive house a market force in the United States.”

Other 2015 award recipients include Robin Chase, founder of Zipcar, Lori Duvall, director of global impact at eBay and Arlene Blum, founder and executive director of the Green Science Policy Institute. Click here to see the full list of recipients.

Klingenberg, a German-born architect, designed and built the first "passive house" in the United States in Urbana, Ill. in 2003. The project sparked intense interest, and Klingenberg co-founded the Passive House Institute US (PHIUS) with the mission of making passive building principles and performance standards a mainstream market standard. Klingenberg introduced the Certified Passive House Consultant (CPHC®) training and certification programs in 2008.

Klingenberg has forged strategic partnerships to advance passive building. Through an agreement with the U.S. Department of Energy, the PHIUS+ Certification program also earns projects the D.O.E.’s Zero Energy Ready Home status. Working with D.O.E. and RESNET, PHIUS developed the first and still only third party quality assurance program for passive buildings.  On the research front, Klingenberg led collaboration with Building Science Corporation on a three-year, DOE-funded study that yielded a climate-specific passive building standard for North America. The John D. and Catherine T. MacArthur Foundation recently recognized PHIUS’ work with a grant to support passive building for affordable housing.

The judging panel for the 2015 Women in Sustainability Leadership awards included Chris Howe and Laura Heidenreich of Green Building & Design Magazine, Rochelle Routman of Mohawk Industries, Kimberly Lewis of the U.S. Green Building Council, and Charmaine Atherton of Bank of America Merrill Lynch. Past award winners include U.S. Secretary of State Hillary Clinton, Cindy Ortega, Chief Sustainability Officer of MGM Resorts International, Arielle Bertman, Principal of Energy and Sustainability at Google, and Daniele Horton, Founder and Principal of Verdani Partners.

Klngenberg will receive her award at the Greenbuild Conference & Expo in Washington D.C. on Nov. 19.

Mar 2015

PHIUS to launch North American passive building standard at March 25 event at the Bullitt Center (Seattle)

Chicago—March 11, 2015—PHIUS (Passive House Institute US) announced today that Executive Director Katrin Klingenberg will formally launch the new PHIUS+ 2015 passive building standard on March 25 at Seattle’s Bullitt Center. 

Mar 2015

PHIUS certifies innovative affordable housing project in Pittsburgh

Chicago—March 9, 2015— Passive House Institute US (PHIUS) today announced that Uptown Lofts on Fifth, developed by Pittsburgh’s Action-Housing, has received PHIUS+ Certification—validating that the 24-unit project meets a rigorous performance standard that reduces energy consumption for heating and cooling by 60-80 percent compared to conventional design. 

Jul 2014

PHIUS releases two-day breakout schedule for the 9th Annual North American Passive House Conference

Expanded program includes more tech, more Net Zero, more commercial and multifamily case studies, more international content – and a little more time to register

Jun 2014

PHIUS Announces William Rose and Achilles Karagiozis as Keynote Speakers for the 9th Annual North American Passive House Conference, September 10-14, 2014

William Rose, pioneering building scientist, will deliver the keynote address at the 9th Annual North
American Passive House Conference in San Francisco, during the opening plenary on Friday, September 12, 2014. Rose is Senior Research Architect at the Illinois Sustainable Technology Center at the University of Illinois at Urbana-Champaign. He is a protégé of Seichi Konzo, the principal author of double-wall superinsulation—first introduced in 1976 in the Illinois Lo-Cal House. Superinsulation eventually became one of the foundations of what today is known as passive house.

Nov 2013

PHIUS and PHAUS Present Passive Place at Greenbuild 2013

The Passive House Institute US (PHIUS) and Passive House Alliance US (PHAUS) will again exhibit and anchor the Passive Building Place at the Greenbuild 2013 expo in Philadelphia, PA, November 20-21.

May 2013

PHIUS Receives Richard King Mellon Foundation Grant to Support Eighth Annual North American Passive House Conference

Thanks to the generosity and vision of the Richard King Mellon Foundation, the Eighth Annual North American Passive House Conference promises to be the largest and most important to date, bringing passive building leaders and exhibitors from around the globe, and showcasing the Pittsburgh region’s vibrant green building community and industries.

Sep 2012

PHIUS Announces Window Data Certification Program

PHIUS rolled out the first phase of the domestic (North American) passive house window certification program. The initial goal is to calculate and make available valid thermal performance parameters for US windows so that designers will have more choices and can do building energy models with more confidence in their accuracy.

Jun 2012

Fraunhofer Announces WUFI Passive, a Collaboration with PHIUS

Fraunhofer-Institute for Building Physics (IBP) has developed, in cooperation with the Passive House Institute US (PHIUS), the WUFI® Passive design software for Passive Houses in North America. The Fraunhofer IBP’s hygrothermal analysis software WUFI® Plus was the basis for this new modeling tool.

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