Matthew Cutler-Welsh, Zack Semke, Mary James, and Ilka Cassidy

Passive House Podcast

Society EN ↓ 519 episodes

Interviews with the leaders, practitioners, and change-makers in the global Passive House movement. A production of Passive House Accelerator.

Author

Matthew Cutler-Welsh, Zack Semke, Mary James, and Ilka Cassidy

Category

Society

Podcast website

passivehouseaccelerator.com

Latest episode

Jul 8, 2026

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Episodes

156: Shane Pollin, PS Ventures 12.09.2023

Passive House Podcast co-host Matthew Cutler-Welsh interviews Shane Pollin, Founder of PS Ventures, LLC where his primary mission is to help design and develop buildings that are more resilient, more durable, and more efficient utilizing building science and Passive Building principles. Shane brings a practical, economic and marketing based approach to Passive House and speaks in depth about his u...

155: Heather Mott, Collective Carpentry 05.09.2023

Passive House Podcast co-hosts Ilka Cassidy and Mary James interview Heather Mott, in-house designer and a Certified Passive House Consultant at Collective Carpentry. In this interview, she shares her profound enthusiasm for Passive House design and how her involvement with the Passive House Accelerator played a pivotal role in shaping her current role. Heather shares into her unique approach to c...

Passive House Podcast Ep. 154: Mike Anderson, Passive Design Solutions 28.08.2023

In this episode of the Passive House Podcast, co-host Zack Semke sits down with Mike Anderson of Canadian based Passive Design Solutions. Learn how Mike's standard plans and catalog  for Passive Homes are reshaping the industry as he speaks about scaling up Passive building models and his hands-on involvement in all aspects of high-performance housing, from energy modeling to window layouts. Passi...

Passive House Podcast Ep. 153: Helena McElmeel, Helena McElmeel Architects 22.08.2023

Passive House Podcast co-hosts Ilka Cassidy and Mary James interview Helena McElmeel of Helena McElmeel Architects in Galway, Ireland. They explore architecture and Passive House design, and discuss her innovative strategies for addressing overheating, including exterior shading, after surpassing overheating goals in the Passive House Planning Package (PHPP). Helena sheds light on the challenges a...

Passive House Podcast Ep. 152: Wayne Turett, Turett Collaborative 15.08.2023

Passive House Podcast co-host Zack Semke interviews Wayne Turett, founder of The Turett Collaborative, an architecture and interiors firm in NYC. Their conversation focuses on the link between the circular economy and construction waste. Wayne stresses the need to rethink waste management at every stage of design and construction to align with a more circular economy, prioritizing strategies like...

Passive House Podcast Ep. 151: Andrea Mancino, Bright Power 08.08.2023

Passive House Podcast co-hosts Mary James and Ilka Cassidy interview Bright Power interim CEO, Andrea Mancino. Andrea began at Bright Power over a decade ago as an intern and now heads up the industry-leading energy efficiency, renewable energy, and energy management consultancy, based in New York City. The firm's Passive House portfolio is growing at a rate of 100% per year, reflecting the exciti...

Passive House Podcast Ep. 150: Carolin Friese, Carolin Friese Architecture 01.08.2023

Passive House Podcast co-host Matthew Cutler-Welsh  interviews Carolin Friese, the architect behind Carolin Friese Architecture in Queenstown, New Zealand. Originally from Germany, Carolin's early exposure to sustainable and energy-efficient homes, along with her background in engineering, has led her to become a Passive House designer.  She gives insights into her design philosophy and what she s...

Passive House Podcast Ep. 149: David Barker, Introba 25.07.2023

Passive House Podcast co-host Matthew Cutler-Welsh interviews David Barker, Managing Principal and leader of the Australian National Sustainability Team at Introba.  They discuss the impact of his his early decision to pursue engineering and  his path to discovering the importance of sustainable building practices.  David also shares a bit about his current projects including his contributions to...

Passive House Podcast Ep. 148: Raphael Vibert, Herz & Lang 18.07.2023

In the latest episode of the Passive House Podcast, cohosts Mary James and Ilka Cassidy sit down with Raphaël Vibert, a Passive House certifier accredited by the Passive House Institute. Raphaël is a senior designer, consultant, and certifier at Herz & Lang.  Throughout this episode, the conversation covers a range of topics, starting with the significance of adopting a holistic approach when...

Passive House Podcast Ep. 147: John Semmelhack, IAQ and Wildfire Smoke 11.07.2023

Passive House Podcast co-host Zack Semke catches up with John Semmelhack, co-owner of the Comfort Squad based in Charlottesville, Virginia, and a member of the Phius Technical Committee. John shares an immediate, triage solution to keeping indoor air clean (the Corsi-Rosenthal cube) as well as a long-term, structural solution (Passive House airtightness and ventilation with high-performance filtra...

Passive House Podcast EP. 146: Talina Edwards + Andy Marlow, Envirotecture 04.07.2023

Passive House Podcast co-host Matthew Cutler-Welsh interviews Talina Edwards + Andy Marlow of  Envirotecture, an Australian-based architectural firm. During the interview, Talina and Andy discuss their recent success in a carbon focused design competition, shedding light on the complex relationship between operational  and embodied carbon. Their primary focus lies in creating net-zero homes that a...

Passive House Podcast Ep. 145: Joe Mercieca, Blue Eco Homes 27.06.2023

Passive House Podcast co-host Matthew Cutler-Welsh interviews Joe Mercieca,  owner of Blue Eco Homes, an Australia-based construction company. With an extensive background spanning over three decades in the building industry, Joe shares his discovery of Passive House and its impact on his approach to construction. Joe discusses training his team and his insights into the significance of airtight d...

Passive House Podcast Ep. 144: Emily Smith, Re:Vision Architecture 20.06.2023

In the latest episode of the Passive House Podcast, cohosts Mary James and Ilka Cassidy sit down with Emily Smith, Sustainability Consultant at Re:Vision Architecture, located in Philadelphia, PA. Emily is a LEED Accredited Professional, HERS Rater and PHIUS+ Rater. During the episode, Emily shares her inspiring journey, tracing back to her early fascination with renewable technology and her trans...

Bonus Episode: EuroLine Windows (PHCC 2023) 16.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Mary James interviews Alfred Jury, Davyd Funk, and Ilan Muskal of EuroLine windows. Thank you, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible! https://euroline-windows.com/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and t...

Passive House Podcast Ep. 143: Katie Faulkner, West Work 13.06.2023

In the latest episode of the Passive House Podcast, guest cohosts Mary James and Ilka Cassidy sit down with Katie Faulkner, co-founder of West Work design collaborative. This wide-ranging episode dives deep into the world of retrofitting, prefabrication, and building science. Katie Faulkner is an experienced architect with a passion for transforming existing buildings into energy-efficient spaces....

Bonus Episode: Scott Foster, Senior Advisor, Senior Fellow, and Entrepreneur in Sustainable Energy (PHCC 2023) 12.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Passive House Accelerator founder Michael Ingui interviews Scott Foster, Senior Advisor, Senior Fellow, and Entrepreneur in Sustainable Energy and former United Nations Economic Commission Director of Sustainable Energy.  Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive Hous...

Bonus Episode: Lois Arena, Steven Winter Associates (PHCC 2023) 09.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Mary James interviews Lois Arena of Steven Winter Associates. https://www.swinter.com/ Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible. https://euroline-windows.com/ Thank you for listening to the Passive House Podcast! To learn more about P...

Bonus Episode: Chris Chan, Soukup America (PHCC 2023) 08.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Passive House Accelerator founder Michael Ingui interviews Chris Chan of Soukup America. https://soukupamerica.com/ Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible. https://euroline-windows.com/ Thank you for listening to the Passive House P...

Bonus Episode: Sean Botham, CityHousing Hamilton (PHCC 2023) 07.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Mary James interviews Sean Botham of CityHousing Hamilton. https://www.hamilton.ca/people-programs/cityhousing-hamilton Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible. https://euroline-windows.com/ Thank you for listening to the Passive Hou...

Passive House Podcast Ep. 142: Mark van Haandel, MVH Constructions 06.06.2023

Passive House Podcast co-host Matthew Cutler-Welsh interviews Mark van Haandel of MVH Constructions. Joining us from Melbourne, Australia, Mark shares his journey of transitioning from a traditional builder to a passionate advocate for sustainable construction practices. Discover how Mark's encounter with Passive House principles revolutionized not only his way of building but also transformed his...

Bonus Episode: Marine Sanchez, RDH Building Science (PHCC 2023) 05.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Mary James interviews Marine Sanchez of RDH Building Science. https://www.rdh.com/ Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible. https://euroline-windows.com/ Thank you for listening to the Passive House Podcast! To learn more about Passi...

Bonus Episode: Evelyne Bouchard, Tandem Architecture Écologique (PHCC 2023) 02.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Mary James interviews Evelyne Bouchard of Tandem Architecture Écologique. https://en.tandemarch.ca/ Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible. https://euroline-windows.com/ Thank you for listening to the Passive House Podcast! To learn...

Bonus Episode: Corey Diamond, Efficiency Canada (PHCC 2023) 01.06.2023

In this special bonus episode recorded at the Passive House Canada Conference, Mary James interviews Corey Diamond of Efficiency Canada. https://www.efficiencycanada.org/ Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible. https://euroline-windows.com/ Thank you for listening to the Passive House Podcast! To learn more ab...

Bonus Episode: Mahnaz Nikbakht, ROCKWOOL North America (PHCC 2023) 31.05.2023

In this special bonus episode recorded at the Passive House Canada Conference, Mary James interviews Mahnaz Nikbakht of ROCKWOOL North America and Bâtiment Passif Québec. https://www.rockwool.com/north-america/ https://batimentpassifquebec.com/ Thank you to our sponsor, EuroLine Windows for making the Passive House Podcast at the Passive House Canada Conference possible. https://euroline-windows.c...

Passive House Podcast Ep.141: Gunter and Markus Lang, LANG consulting 30.05.2023

In the most recent episode of the Passive House Podcast, guest cohosts Mary James and Ilka Cassidy interview Gunter and Markus Lang of  LANG consulting .  Known as longstanding members of Passive House Austria, they delve into their extensive efforts to promote the principles of Passive House on a global scale. 2019 interview with Gunter and Markus: https://passivehouseaccelerator.com/articles/int...

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