Podcasts about passivhaus

Architect Kirsty Maguire shares her experience of designing and building her own Passivhaus on a challenging sloping site in Newport-on-Tay, Scotland. Check out the show notes for more information.

In this episode of the Passive House Podcast, Matthew Cutler Welsh interviews Jessica, a high-performance building consultant at Climate Shore in Adelaide. They discuss Jessica's transition from energy efficiency compliance to specializing in high-performance building with a focus on mitigating moisture risks. Jessica emphasizes the importance of proper construction practices and ventilation in preventing mold, touching on the challenges of getting builders and homeowners to adopt better practices. She highlights the relevance of Passive House standards and her involvement in promoting building science in Australia. Jessica is also the founder and co-host of the Build Insite podcast, where she explores building science, performance-based design, and practical strategies to deliver healthier, more efficient homes. Her expertise encompasses blower door testing, NHERS compliance, condensation risk modelling, and navigating NCC‑2022 regulations—all aimed at improving standards in residential and commercial construction.https://www.linkedin.com/in/jessica-allen-esd/https://www.climasure.com.au/https://www.endurobuilders.com.au/https://building-sciology-poddie.podcastpage.io/?v=lfcmhttps://www.instagram.com/building.sciology/https://www.instagram.com/building.sciology/https://www.tiktok.com/@building.sociologyThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive Hosue Podcast, Zack Semke welcomes Michael Quast, the new CEO of Passive House Canada. Michael shares his diverse background in construction, business development, and media, emphasizing his passion for sustainable building. They discuss Michael's journey to Passive House Canada, his experience with straw bale construction, and his focus on fostering collaboration and breaking down silos within the sustainability sector. This episode highlights the importance of engaging both the building community and consumers to promote high-performance, energy-efficient buildings. https://www.passivehousecanada.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.https://passivehouseaccelerator.com/articles/passive-house-helping-shape-state-energy-codeshttps://passivehouseaccelerator.com/podcast/passive-house-podcast-ep-36-robyn-wark-bc-hydrohttps://passivehouseaccelerator.com/podcast/passive-house-podcast-encore-ep-robyn-wark-bc-hydro

Sally Godber, a Director at WARM consultancy explains why reducing the risks on her own Passivhaus project was so important, what that entailed and how it enabled her to deliver a healthy, comfortable and energy-efficient home on budget. Check out the show notes for more information.

In this episode of The Passive House Podcast, Mary James interviews Stephen O'Shea, head of Sustainable Construction at Carin Homes. Steven discusses the company's focus on large-scale residential projects, their commitment to Passive House standards, and the significant benefits for residents. He shares his journey from architecture to sustainable design, training strategies for implementing these standards, and the ecological measures taken on building sites. The episode also covers the need for public education on Passive House and previews an upcoming conference in collaboration with the Passive House Trust.https://www.cairnhomes.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this tenth episode of The Reimagine Edit, host Zack Semke weaves together insights from a month of dynamic conversations inside the Reimagine Buildings Collective—including AMAs and Reimagine Tuesday interviews. From practical moisture control strategies to the latest in embodied carbon policy, from the efficiencies unlocked by design-build to the evolving role of materials in Passive House, this episode showcases a spectrum of expertise shaping climate-ready buildings. Tune in for perspectives from Cameron Kaja, Jacob Racusim, Josh Salinger, Jesse Thompson, and  Melissa Furukawa, and get inspired by a community working together to raise the bar for performance, resilience, and impact. The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com

Andy Mitchell, Managing Director of 21 Degrees, explains what factors influence human comfort and how we have tried to make our homes more comfortable through the years. Embracing building physics has been a turning point and while we have the knowledge and skills to create healthy and comfortable homes today, it's still not the default approach. So Andy outlines the options available to get yourself into a better home. Check out the show notes for more information.

In this episode of the Passive House Podcast, Matthew Cutler Welsh sits down with Arthur Lee to discuss his background in architecture and his work in promoting energy-efficient buildings in New Zealand. Arthur shares his experience with passive house design at Tim Green Architects and his current role at Queenstown Lakes Community Housing Trust. Lee highlights the trust's mission to provide affordable, high-quality housing with a focus on energy efficiency, detailing their incremental improvements and the importance of sustainable design.https://www.qlcht.org.nz/Sian Taylor's appearances:https://passivehouseaccelerator.com/podcast/passive-house-podcast-ep-25-sian-taylor-team-green-architectshttps://passivehouseaccelerator.com/articles/threepwood-passive-house-sian-taylorThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

We're joined by our new friends from Building Atlas, Nick Taylor and Olga Khroustaleva, who join us for a conversation about commercial retrofit—the non-residential kind. They've got a data driven business Building Atlas that helps commercial asset owners to plan pragmatic retrofit pathways for commercial real estate.This isn't just important because of how much energy the non-residential sector consumes, it's also because 70% of non-residential building assets are on course to become stranded assets because of their EPC rating and MEES regulation.They are simplifying a complex problem into something that's comprehensible—aggregating experience (and data) to give broad brush stroke direction that's useful. They've also published a paper about retrofit strategy for commercial buildings: The Beauty in Boring Buildings: The Business Case for Retrofit Beyond Flagship Assets.Notes from the showNick Taylor on LinkedIn Olga Khroustaleva on LinkedIn The Building Atlas website Their recent paper — The Beauty in Boring Buildings: The Business Case for Retrofit Beyond Flagship AssetsUK Government MEES guidance — Non-domestic private rented property: minimum energy efficiency standard - landlord guidance**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Send us a textExpanding Horizons: BetaTalk's New Newsletter and Website!We're thrilled to announce that BetaTalk is growing! In addition to our regular podcast episodes, we're launching a brand new newsletter and an associated website. This expansion will allow us to bring you even more in-depth content, industry news, and valuable insights into the world of heat pumps and sustainable building.Our newsletter, launching shortly, will be your go-to source for the latest industry developments, insightful opinion pieces from the third sector, and crucially, real-world heat pump case studies from experienced engineers in the Guild of Master Heat Engineers. This is an exciting step in our mission to inform and empower.As Chris Stark, former CEO of the Climate Change Committee, remarked about this new venture: "Nathan is one of the UK's clean heat leaders, so I always watch him closely. This collaborative media venture is an exciting next step. We need positive voices like Nathan's to help broaden knowledge around retrofit and heat pump installations."Don't miss out! Be among the first to receive our new newsletter and stay ahead of the curve:Sign up now for exclusive content and updates!Episode Notes:Welcome back to BetaTalk! In this fascinating episode, we delve deep into the world of air-to-air (A2A) heat pump systems for domestic properties. We were incredibly fortunate to be joined by two distinguished guests: Es Tresidder, a consultant specialising in Passivhaus design and low-carbon building design optimisation, and Michael Cosham, a seasoned HVAC engineer with 47 years of invaluable experience.Our conversation began by exploring air-to-air systems in general, including Michael's personal experience building an A2A system for his first home on Canvey Island. Es then shared insights into the A2A system installed in his own highly efficient home, providing a real-world perspective on their performance.We thoroughly discussed the numerous advantages of A2A systems in domestic properties, highlighting their efficiency and effectiveness. We also touched upon some perceived disadvantages, but as our conversation unfolded, it became clear that many of these concerns, such as fan speeds, comfort, noise, and even dry skin issues, may be simple to resolve with proper system setup and design. Indeed, with the right configuration, these issues may not even exist. For more on this, and avoiding potential pitfalls, Es has provided these insightful articles:About overheating in low-energy buildings: https://www.highlandpassive.com/do-low-energy-buildings-have-an-overheating-problem/Understanding thermal comfort: https://www.highlandpassive.com/why-do-i-feel-chilly/A key takeaway from this episode was the remarkably low cost of A2A heat pumps, making them an increasingly attractive and accessible option for homeowners looking to embrace sustainable heating solutions.Join us for a truly enlightening discussion that challenges preconceptions and sheds light on the true potential of air-to-air heat pump technology.Support the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

In this episode, Matthew shares a compilation of voices from the recent THRIVE 25 Passivhaus Conference held in MelbourneAlex Slater Alex is the founder of Building Physics Pty Ltd, where he combines deep technical expertise with a passion for climate-responsive design. With a background in engineering and years of experience in thermal and hygrothermal simulation, Alex is committed to improving building performance across Australia's diverse climates. His work supports architects, builders, and certifiers in delivering Passive House and low-energy buildings that excel in comfort and resilience.

In this episode, I'm joined by three incredible women from the Prometheus Homeopathic Institute—Desirée Brazelton, Rebecca Beringer, and Meredith Salmi-Bydalek—as we explore what it truly takes to become a confident, connected, and thriving homeopath. We dive into the challenges new practitioners face, from charging for services to navigating isolation post-graduation, and how PHI's unique hybrid model and strong community focus help students stay in practice. Our guests share their deeply personal journeys into homeopathy, highlighting the diverse paths that lead people to this healing art. We also discuss the school's exciting new offerings, including an acute certification program and an upcoming retreat in Greece, all designed to support both new and seasoned homeopaths in their growth. This episode is a powerful reminder of the importance of mentorship, collaboration, and believing in your own worth as a practitioner. Episode Highlights: 03:06 - How We Found Homeopathy 06:51 - Why Prometheus Was Created 09:23 - Why Homeopaths Need Each Other 15:42 - Mentorship Beyond the Classroom 20:30 - Clinic Experience That Prepares 23:28 - Confidence Through Practice, Not Perfection 28:32 - Homeopathic Provings at PHI 31:46 - Engaging the Homeopathy Community 37:30 - PHI's Greece Study Trip 41:20 - Upcoming Programs and Events at PHI 47:14 - Growth Beyond the Curriculum 50:08 - Learning to Charge Your Worth About my Guests: Desirée Brazelton, CCH, is a Classical Homeopathic Practitioner based in South Minneapolis, MN, serving clients locally and around the world. As the Founder and CEO of Prometheus Homeopathic Institute, she is a passionate educator and visionary committed to guiding students through the transformative journey of becoming homeopaths. Her writing on homeopathy and conscious parenting has been featured in publications such as Homeopathy Today, and she has spoken at leading conferences including the Minnesota Homeopathic Association Conference and the Joint American Homeopathic Conference. Desirée lives with her husband, three daughters, and a lively crew of pets—including dogs, chickens, and a guinea pig—in a PassivHaus designed for sustainable living. Rebecca Beringer, CCH, is the Clinical Director of Prometheus Homeopathic Institute and a full-time Classical Homeopathic Practitioner based in Appleton, WI, serving clients both nationally and internationally since 2009. A graduate of the Northwestern Academy of Homeopathy, Rebecca also holds degrees in Anthropology and Religious Studies, bringing a rich interdisciplinary perspective to her work. Her diverse teaching background spans homeopathy, wellness, religion, fitness, and working with at-risk youth, alongside service on multiple educational boards. As a mentor, Rebecca is passionate about meeting students where they are and supporting their personal and professional growth throughout their homeopathic journey. Meredith Salmi-Bydalek, CCH, is a Certified Classical Homeopath based in Minneapolis, MN, with a deep commitment to individualized, natural healing. A graduate of the three-year professional program at Prometheus Homeopathic Institute, Meredith holds a Master's in Public Policy from the University of Minnesota–Twin Cities and a B.A. with Honors in Art History from the University of Wisconsin–Madison. Before transitioning to homeopathy in 2022, she worked in policy and research supporting individuals with intellectual and developmental disabilities. Meredith brings her strengths as a passionate community builder and advocate to her homeopathic practice, working with clients of all ages and backgrounds. Her own healing journey began with her children and evolved into a full family commitment—including their dog—to holistic care. She lives in the Minneapolis area with her husband, three children, and pup, and enjoys gardening, reading, and camping in her spare time. Find out more about Desirée Website: https://www.desireebrazelton.com/ Find out more about Rebecca Website: https://www.healingwayhomeopathy.com/ Find out more about Meredith Website: https://www.meredithsb.com/ If you would like to support the Homeopathy Hangout Podcast, please consider making a donation by visiting www.EugenieKruger.com and click the DONATE button at the top of the site. Every donation about $10 will receive a shout-out on a future episode. Join my Homeopathy Hangout Podcast Facebook community here: https://www.facebook.com/groups/HelloHomies Follow me on Instagram https://www.instagram.com/eugeniekrugerhomeopathy/ Here is the link to my free 30-minute Homeopathy@Home online course: https://www.youtube.com/watch?v=vqBUpxO4pZQ&t=438s Upon completion of the course - and if you live in Australia - you can join my Facebook group for free acute advice (you'll need to answer a couple of questions about the course upon request to join): www.facebook.com/groups/eughom                

This is a recording of a panel session held in the Willmott Dixon pavilion at UKREiiF 2025. Passivhaus delivers comfort, lowers energy costs and reduces carbon, but public sector projects often face budget challenges.   In this fireside chat, our experts discussed the growing momentum, benefits and challenges of implementing Passivhaus standards in construction.   The session featured: Emma Osmundsen, Director of Housing Regeneration at London Borough of Ealing, and Chair of the Passivhaus Trust Lorna Taverner, Head of Architecture and Technical Design at Willmott Dixon

In this episode of the Passive House Podcast Jay Fox talks with Ace McCarlton of New Frameworks about building with straw-insulated prefab panels, creating inclusive workspaces in the trades, and launching the Seed Collaborative to scale low-carbon construction through shared knowledge and collective action.https://www.newframeworks.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode Rose Chard joins us to describes her multilayered and multi textured approach to innovation and research. It's a conversation about Energy Systems Captapult's experiment in prescribing heating to keep people warm—that's pretty much it, but there was a lot to talk about.Notes from the showRose Chard on LinkedInThe Inclusive Smart Solutions project that Rose mentionsWarm Home Prescription® Insights and Impact Report (July 2024) by Energy Systems CatapultWarm Home Prescription recommended by 93% of health professionals in latest trial (September 2023) by Energy Systems CatapultOne of the papers Jeff mentioned: Occupant Interactions and Effectiveness of Natural Ventilation Strategies in Contemporary New Housing in Scotland, UKThe other one: Ventilation and Indoor Air Quality in Part F 2006 Homes (BD 2702) from 2010**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, Mary James speaks with Barry McCarron, Managing Director of Kore Retrofit, about Ireland's bold retrofit efforts and Passive House leadership. Barry traces his journey from building the world's largest Passive House Premium project to leading cutting-edge retrofit initiatives through Kore's one-stop shop model. He shares insights into his PhD research on radon in certified Passive House buildings, the significance of airtightness and ventilation, and Ireland's ambitious retrofit targets. https://www.koreretrofit.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this ninth episode of The Reimagine Edit, host Zack Semke weaves together insights from the Reimagine Buildings 25 conference and a month of rich conversations inside the Reimagine Buildings Collective—including AMAs, Reimagine Tuesday interviews, and the post-conference after party. From the growing momentum behind high-performance prefab to timeless lessons in quality craftsmanship, scale, and impact, this episode captures the spirit of a community pushing forward together. Tune in for voices from across the industry sharing what it means to build better—at every level.The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com

Phil Neve explains what Passivhaus Premium is and why he chose to target the standard for his own self build in Somerset. He also talks through his biggest project challenge, which was obtaining planning permission to build in open countryside. Check out the show notes for more information.

On this episode of the Passive House Podcast join Michael Ingui as he chats with the NYSERDA Buildings of Excellence Round Five Award winners. From groundbreaking Passive House projects in Manhattan, Buffalo, and the South Bronx to deep retrofits and adaptive reuse in Brooklyn and beyond, we hear from architects, developers, and engineers driving high-performance, low-carbon buildings across New York State. With a focus on community impact, design excellence, and climate resilience, this episode captures a pivotal moment in the evolution of sustainable architecture. Buildings of Excellence Website: https://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Project featured in interview excerpt #1 with Curtis + Ginsberg Architects: Kissena Househttps://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Winners/Kissena-HouseProject featured in interview excerpt #2 with Forward Development and Line 42 Architecture: 1707 Hertel Ave – buffalohttps://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Winners/1707-Hertel-AveProject featured in interview excerpt #3 with Alloy Development and Thornton Tomasetti: 475 State Streethttps://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Winners/475-State-StreetProject featured in interview excerpt #4 with Curtis + Ginsberg Architects: Seneca West 110th Streethttps://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Winners/Seneca-West-110th-StreetProject featured in interview excerpt #5 with Curtis + Ginsberg Architects: 77 William Streethttps://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Winners/77-William-StreetProject featured in interview excerpt #6 with Ettinger Engineering Associates: Powerhouse Apartmentshttps://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Winners/Powerhouse-ApartmentsProject featured in interview excerpt #7 with ZH Architects: Building 10 Bio-Based Passive Househttps://www.nyserda.ny.gov/All-Programs/Multifamily-Buildings-of-Excellence/Winners/Building-10-Bio-based-Passive-House

In a slight departure from our usual building performance themes joining us for this episode we have Richard Muscat, a man who has experienced the world of investment and tech from a fascinating range of angles and is seeking ways to do things differently.In essence, we're looking at the way venture capital and climatetech are organised in ways that aren't conducive to delivering the impact that's promised. We're not just picking on VCs, we're using them as a means of highlighting a bunch of systemic economic issues—chief among them is how unrealistic goals for growth (in its myriad forms) almost always leads to failed impact. Perversely, it's a bug in the impact investment space that's a feature of the broader investment system.We also get into concepts of degrowth and economic biodiversity.Good Homes Alliance eventLaunch event of our a best practice guide to ‘Water Efficiency and Reuse in Housing' on Thursday 10 July.Notes from the showRichard Muscat on LinkedinThe Untangled websiteRichard's recent LinkedIn post that we mentionThe Project Drawdown websiteHuman flourishing doesn't require perpetual growth; it requires sufficiency, by Jason HickelSmarter Finance 4 EU — the project Jeff's been working on and promoting because green home certification is about not just energy use, or IAQ, etc, but how residents live their lives once they leave the front door i.e. nature + cycling + public transport + climate resilience etc. all matter**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, hosts Mary James and Ilka Cassidy sit down with Kristina Held, principal and founder of Held Architecture. Kristina shares her fascinating path through architectural education in Serbia, Germany, and the U.S., and how that global experience shaped her approach to Passive House. From humidity challenges in the Carolinas to adaptive reuse and detailing with precision, Kristina offers deep insight into designing for performance, comfort, and climate resilience.https://www.heldarch.com/

Heather Johnson from AD Practice explains what Passivhaus Plus is, how it differs from Passivhaus Classic accreditation and what benefits achieving the standard will afford. She also reveals why most of her clients target 'Plus' and outlines the steps to achieve this on a project. Check out the show notes for more information.

In this episode of The Passive House Podcast, Mary James sits down with Parlin Meyer, Managing Principal of BrightBuilt Home, and Chris Lee, Head of Design & Development at Backyard ADUs, for a deep dive into the growing world of accessory dwelling units (ADUs). Together, they explore how prefabrication, modular construction, and progressive policy shifts are reshaping the housing landscape in the Northeast and beyond. From multigenerational living to zoning reforms and cost challenges, Parlin and Chris share insights from the front lines of ADU design and delivery—what's working, what's not, and where this crucial housing type is headed.https://www.brightbuilthome.com/https://backyardadus.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode we're talking about Zero Bills Homes, so we welcome back Nigel Banks, this time accompanied by his Octopus colleague Emma Fletcher*.We're not directly talking Fabric Fifth again but the concept is central to the Octopus zero bills strategy i.e. prioritising decarbonising energy use and reducing the cost of energy use rather than focusing on reducing energy demand through fabric measures. As before, basic fabric standards are required in order to make the proposition financially viable.As you might imagine, Jeff was keen to dig into the technical and performance side, so Nigel explains what's going on in the standard and what they know about how well it's functioning and Emma fills us in on how it's shaping up to evolve into a building standard in its own right. We're particularly keen because—although we might be sceptical, which we discuss—the action that Octopus is initiating will raise standards and will shape expectations that will influence the whole residential construction sector, and could go some way to catalysing the bridging of the skills gap.*She, too, works at Octopus Energy—she is not an actual octopus.Notes from the showNigel Banks on LinkedinEmma Fletcher on LinkedinThe Octopus Zero Bills proposition in their own words The Octopus Tenant Power propositionNigel Banks' addressing the embodied carbon question on LinkedIn Link to The Octopus Energy Tech Summit (23rd June)The Fabric Fifth ZAP episode from last year**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, Jay Fox and Mary James talk with Lisette Wong and Jack Esterson of Think! Architecture & Design to explore the award-winning Malcolm Shabazz Harlem Plaza project. Learn how this project blends community heritage with Passive House sustainability in Harlem. Lisette and Jack share their journey to Passive House, the project's innovative design features—including advanced HVAC, daylighting with large operable skylights, green roofs, and PV systems—and the deep community impact of creating year-round space for market vendors and residents alike.https://www.think-arc.com/Reimagine Buildings '25 https://passivehouseaccelerator.com/events/reimagine-buildings-25Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this eighth episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Ed May (bldgtyp), Nakita Reed (Quinn Evans), Tessa Bradley (Artisans Group), Bev Craig (MassCEC), Mike Steffen (Walsh Construction), Lisa White (Co-Executive Director of Phius), and Jonsara Ruth and Allison Mears (leaders of Healthy Materials Lab).Quotes:Jonsara Ruth: "If everybody knows a little bit more, we actually have the ability to steer things in the right direction."Alison Mears:"We have to be hopeful. We have to be vigilant. And we have to use our practice for good."Ed May:"These things are really hard to disentangle... they work together as a whole system."Nakita Reed: "We're on the same team, but here's what we're trying to go forward."Tessa Bradley:"You're making the rules of your own game."Bev Craig:"The more educated and experienced they were, the lower the premium was."Mike Steffen:"We're doing it to create room in the budgets… to pull the better buildings off."Lisa White:"We're trying to be… a shield and a sword against climate change."The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com

In this episode of the Passive House Podcast Mary James and Jay Fox chat with Sarah Lewis, Research and Policy Director at the Passive House Trust. They explore Scotland's groundbreaking push toward mandatory Passive House standards for new buildings.  Sarah dives into the motivations behind the proposed legislation, lessons from Germany and Brussels, and the vital role of embodied carbon. She also explores the practical implications—from fuel poverty and ventilation standards to supply chain readiness and the challenge of scaling EnerPHit retrofits. With clarity and passion, Sarah unpacks how policy can drive meaningful change in the built environment.https://www.passivhaustrust.org.uk/

This episode is all about a retrofit programme gone wrong in Preston and the effort required to fix it. It's a story that was covered in the pages of Passive House Plus back in 2018 under the headline "Disastrous Preston retrofit scheme remains unresolved" and until recently we thought it remained unresolved.We're joined by Filipe Amarante and Joanna Curtis to talk about the Preston Retrofit Catastrophe and all the work that National Energy Action has been doing to fix the grotesque damage that was wrought on a community in the 2010s. It's a project that's consumed at least four years and—in truth—will require many more to make good.It's not a hopeless story though. The work NEA has carried out is full of lessons for anyone who works in retrofit to learn. They've taken a worst case scenario—one so bad it's hard to imagine how you could make it any worse—and developed a remediation programme that mitigates the worst of the situation while laying out a best-practice template for how one should approach place-based retrofit programmes.They're also hosting a NEA webinar about the programme on 10 June: sign up here.Notes from the showThe Passive House Plus article: "Disastrous Preston retrofit scheme remains unresolved"Filipe on LinkedInJoanna on LinkedInThe NEA website The NEA's summary report on the project (and video): Warm and Safe Homes in FishwickMore photos of the disaster in "When retrofit goes wrong – lessons from Preston", a presentation by Kate de Selincourt, the writer who brought this story to Jeff's attentionCathy Come Home on IMDBA Taste of Honey on IMDBRiff-Raff on IMDB **SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, Matthew Cutler-Welsh talks with Sharon Robinson of Smart Living Spaces. Sharon shares her journey from standard design work to advocating for high-performance, affordable housing. She talks about how rethinking client communication, redefining “standard plans,” and focusing on building science fundamentals like heat recovery, passive design, and smart construction systems can shift the industry.https://www.smartlivingspaces.nz/Reimagine Buildings '25 https://passivehouseaccelerator.com/events/reimagine-buildings-25Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Podcast Architect Nat Madson and structural engineer Lauren Piepho of HGA join us to talk about Barry Mills Hall and the John and Lile Gibbons Center for Arctic Studies—Bowdoin College's first mass timber buildings and the first of their kind in Maine. They share the story behind the design and construction, from early ideas sparked by the college's pine-filled campus and carbon neutrality goals, to navigating mass timber systems, embodied carbon, and the buildings' architectural dialogue with campus history.Barry Mills Hall and the John and Lile Gibbons Center for Arctic Studies: https://hga.com/projects/bowdoin-college-barry-mills-hall-and-center-for-arctic-studies/Bowdoin College's case study of the project: https://www.bowdoin.edu/news/2020/pdf/furthering-mass-timber-construction---hga---consigli---bowdoin-college-22.pdfThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

We are joined by Valentina Marincioni (UCL, UKCMB) and returning guest Toby Cambray (Greengauge) to talk about the bane of all buildings: moisture.Recently, they they've produced a simple explainer video about "breathability" in buildings for the UK Centre for Moisture in Buildings. Given Jeff's proclivity for referring to the 'sweatability' of buildings this seemed like a perfect opportunity to have Toby back and meet his colleague Valentina.We got into the subject of moisture in some depth, discussed the key terms (vapour diffusion, hygroscopicity, and capillary action), why this all matters, what's important to understand and how it's easily misunderstood and easily miscommunicated.We also play the audio from the video.Notes from the showBuildings Don't Breathe, the video that led to the conversationToby on LinkedInValentina on LinkedInThe UKCMB website and the tools and guidance they host thereThe recent Historic England paper: Air and Vapour Control Layers (AVCLs) in buildings of traditional construction. A literature review to understand appropriate useThe BSI white paper about 4 Cs (context, coherence, capacity, and caution) framework for the development of moisture standards in the UKThe paper Toby wrote with Sarah Price on moisture in Enerphit: Moisture and EnerPHit - Good Practice Guide (December 2023)Toby's appearance on the House Planning Help podcast talking about all things WUFIThe Greengauge consultancy website (Toby's consultancy, with others, too)**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the hosts Mary James and Jay Fox sit down with Vincent Bergeron, an architect with Equipe A Architects in Quebec, to explore The Monarch—a groundbreaking social housing project in Sherbrooke. With 134 units guaranteed affordable for 35 years, this high-rise development is notable not only for its scale but for its ambitious pivot toward Passive House principles. Van shares how a tight timeline, a challenging site, and a collaborative team led to innovative choices in prefabrication, envelope design, and energy efficiency. Hear how a late-stage decision to pursue Passive House certification helped shape a healthier, more resilient living environment for low-income families, all while keeping costs in check.https://equipea.ca/

In this seventh episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Jessica Grove Smith (Joint Managing Director of Passive House Institute), Mark Attard, Rainger Pinney, John Loercher, Galen Staengl, Mike Fowler, Cait Eggers, Sean Velez, Nidhi Shaw, and Lloyd Alter.Quotes:"Walking off the ferry in Seattle and ashes falling out of the sky—that changes your perspective. The same thing with the heat dome and with COVID. These events over the last seven to eight years have reshaped how I think and approach design and architecture, and now my focus is on resilience." — Mike Fowler"If you touch any one single component, make sure you go all the way. That's the only way you're going to future-proof your building and have a long-lasting carbon emission impact." — Jessica Grove-Smith"It's very clear that what typologies get built follow where there's grant money. Developers are happy to build anything as long as it comes with a little extra funding—that's a powerful lever we can use to shape the built environment." — Rainger Pinney"In Passive House buildings, humidity changes very slowly. That just observation applies in any climate—you're less affected because the air isn't running through your building like it does in most buildings." — Galen Staengl"We should be retrofitting schools rather than demolishing them. Roofs, windows, and wall cladding can be replaced; we don't need to demolish the whole school to make it better." — Nidhi ShahThe Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.comThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Podcast we are joined by Mark Anderson a Registered Master Builder, Licensed Building Practitioner, and Certified Passive House Tradesperson based in Wanaka, New Zealand. Mark founded MA Building in 2013, driven by a commitment to craftsmanship, sustainability, and innovation in residential construction. Growing up on building sites alongside his father, Mark developed a deep respect for the trade, which he now channels into creating high-performance, architecturally designed homes. His passion for Passive House principles stems from a desire to build healthier, more energy-efficient homes for future generations. Connect with Mark Anderson:Website: mabuilding.co.nzInstagram: @mabuilding_wanakaPHINZ Directory: M A Building WanakaResources Mentioned:MA Building Blog: Why I Chose Passive Homes: The Real StoryPassive House Institute New Zealand: passivehouse.nz

Joining us for this episode are Tom Cox and Sally Sattary co-founders of Decent Energy. They have a software startup borne of a retrofit experience that did not meet its homeowner expectations, a proprietary software that works to maximise the value of battery storage to improve two key metrics: reducing cost of electricity and reducing the carbon intensity of the energy you do use.There's a bunch of chat about the potential of decentralised energy management to help people in all sorts of ways, from reducing one's individual impact to helping the grid cope with occasionally, dangerously abundant renewable energy—an issue which costs every household something like £40 per year, just to turn off the generation facility let it overload the grid.Anyway, there's loads in there. You can find Decent Energy, Tom, and Sally in all the usual places (links below).Notes from the showTom Cox on LinkedInSally Sattary on LinkedInDecent Energy's websiteDecent Energy on LinkedInSaul Griffith's website - an author who inspired Tom to work on the problem of energy decentralisation and demand decarbonisation**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

This week on the Passive House Podcast, Jay and Mary welcome Shannon Pendleton, of Source 2050 and Sanderson Sustainable Design, to share her insights from the massive International Builders Show (IBS) in Las Vegas. From electrification trends to American-made high-performance windows, Shannon breaks down where the building industry is headed and how Source 2050 fits into the evolving landscape of sustainable building.Source 2050 - https://source2050.com/What is Good Wood?(article) - https://passivehouseaccelerator.com/articles/what-is-good-wood-form-follows-forestRB25 - https://passivehouseaccelerator.com/events/reimagine-buildings-2

Toby Cambray talks about the risks associated with moisture in buildings, and the modelling techniques – like WUFI® – that can be used to assess those risks. Check out the show notes for more information.

This episode is a window into the consumer side of domestic retrofit that's full of lessons for everyone involved in the retrofit sector. We speak with retrofit influencer Judith Leary Joyce about the experience of undergoing a deep retrofit and learning how to communicate about the subject with normal people. She talks us through her journey from building an extension during the pandemic to getting deep into retrofit and eventually becoming an unlikely retrofit influencer.Whether you work in a domestic, commercial, or industrial setting the nature and needs of normal people will remain the same, so this is an episode full of lessons and insights for anyone  for anyone involved in domestic retrofit about:- how to speak with normal people- how to learn how to do better (TLDR: listen to yourself, or get someone to listen to you to check whether you're baffling your customers)- how to think about their needs and understand their perspectives- how to inspire them and inform them better prior to a projectShe's also got some fascinating insights about when people are likely to be able or willing to listen to someone talking about building performance and taking on new ideasNotes from the showJudith on LinkedInJudith on InstagramJudith on FacebookJudith on TwitterJudith on LinktreeJudith's Eco Renovation Home websiteBeginner's Guide to Eco Renovation: Understand the Basics and the Best Questions to Ask by Judith Leary Joyce (I couldn't find a properly independent bookshop stocking it)**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, Mary James and Jay Fox dive into passive leisure centers and indoor pool design with Jessica Grove-Smith, Senior Scientist and Joint Managing Director of the Passive House Institute. Jessica shares the story of how PHI began exploring high-humidity building typologies, the unique challenges of designing ultra-efficient recreation centers, and the lessons learned from pioneering projects in Germany and the UK—like the groundbreaking St. Sidwell's Point. From airtightness to evaporation reduction, this is Passive House design at its most dynamic.https://passivehouse.com/

In this sixth episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Carmel Pratt (Massive Passive AMA); Graham Irwin and Silas Patlove (Duck Curve Friday AMA); Lloyd Alter (Sufficiency First AMA); Sara Kudra, Bev Craig, Rainger Pinney, Kristof Irwin, and Alexander Gard-Murray (BuildingEnergy Boston Recap); Ilka Cassidy and Greg Leskien (PH Panelization AMA); and Andrew Peel (Passive House Modeling AMA). The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.comThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Podcast, Mary James sits down with Hugh Pearce, architect and Passive House lead at the UK-based firm Architype. Known for trailblazing sustainable educational design, Architype is behind landmark projects like the UK's first Passive House secondary school. Hugh shares insights into the London Docks Secondary School—an ambitious, airtight, biodiversity-rich oasis in the heart of London's urban density. Tune in for a deep dive into Passive House design for schools.https://www.architype.co.uk/

Mike Whitfield shares his experience of running a local construction company that specialises in Passivhaus. He explains how the business is structured, and what tasks are tackled on a daily and weekly basis. Check out the show notes for more information.

In this episode of the Passive House Podcast Ilka is at McGill University for the Reconstruct Workshop, a workshop bringing together students, researchers, and industry leaders to tackle the future of deep energy retrofits. Ilka sits down with emerging voices from architecture and engineering to unpack prefab innovation, the Single Integrated Manufacturing (SIM) model, and real-world pilot projects aimed at decarbonizing existing buildings. It's a behind-the-scenes look at how the next generation is shaping retrofit strategies that are scalable, sustainable, and socially impactful.https://aeechair.research.mcgill.ca/en/initiatives/the-reconstruct-initiative

Returning champions Richard O'Hegarty and Oliver Kinnane join us to discuss a recently co-authored paper: Understanding the embodied carbon credentials of modern methods of construction (MMC).Get ready for a long meandering discussion that gets into what they learned and what they think about accounting practices for embodied carbon, as well as plenty of chatter about MMC and why we hate the term (but not what it is).Notes from the showRichard O'Hegarty on LinkedInOliver Kinnane on LinkedInA link to Richard's post about the paper and a link to Jeff's comment The paper itself: Understanding the embodied carbon credentials of modern methods of construction Their UCD webpage That Compromised insulation paper (**warning, sadly paywalled but check it if you can**)RKD's website The RKD and Hibernia Real Estate-produced paper: Understanding Net Zero Commercial Real Estate ZAP 8 May 2023: How should we calculate carbon and how long should a building last? With Dr Oliver Kinnane and Dr Richard O'Hegarty of University College Dublin ZAP 1 May 2023: MMC is value engineering that should benefit everyone, with Emma Elston and Amandeep Singh Kalra of Be First Regeneration**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast Matthew Cutler-Welsh sits down with Joseph Lyth an Associate Registered Architect, Certified Passive House Designer based in New Zealand. Joesph walks Matthew through his decision to build a passive house to create a healthier environment for his family.  Believing that healthier, lower energy and affordable buildings are possible for everyone in New Zealand, at standard budgets. Lower Saddle Passive House Tāhekeroa: https://nzgbc.org.nz/case-studies/lower-saddle-passive-house-t%C4%81hekeroa

Mike Eliason talks about his book, Building for People, and the massive opportunity we have to create better places through being more intentional and thoughtful. Check out the show notes for more information.

In this special episode of the Passive House Podcast Ilka Cassidy is joined by Kristoff Irwin of Positive Energy at NESEA's BuildingEnergy Boston '25.Ilka and Kristoff are joined by the following inspiring speakers and organizers of NESEA 25:Jacob Deva Racusin, New Frameworks Natural Design/BuildAndrew Himes, Carbon Leadership ForumLaura Bailey, Vermont Council On Rural DevelopmentHeather Ferrell, Prism Design LabThey dive in to the conferences main take aways, lessons learned, and calls to action.Speaker links:https://www.newframeworks.com/https://carbonleadershipforum.org/https://www.vtrural.org/https://www.prismdesignlab.org/https://positiveenergy.pro/https://positiveenergy.pro/building-science-podcastIlkas call to action resources:https://www.echo-project.info/https://www.greencommons.net/peer-networkshttps://www.climateheritage.org/https://www.mep2040.org/https://nesea.org/about-buildingenergy-bottom-lineshttp://massdesigngroup.org/work/research/bio-based-materials-collectivehttps://www.buildersforclimateaction.org/https://se2050.org/

In this fifth episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Ryan Abendroth (how to get into PH consulting), Michael Ingui (how to sell Passive Hosue), Kristof Irwin (paradigms in high performance building), and Tom Bassett-Dilley (retrofits and embodied carbon).The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.comThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Podcast, Mary James and Jay Fox sit down with Tonje Wold-Switzer, Executive Director of the Santa Cruz County Long Term Recovery Group. Tonje shares her personal journey of losing her home, navigating the recovery process, and advocating for fire-resilient, sustainable rebuilding solutions—including Passive House design. Tune in for insights on disaster response,  and how communities can prepare for future wildfires.How This Family Rebuilt Their Home Stronger after Wild Fire video: https://youtu.be/becjK7WMNXASanta Cruz County Long Term Recovery Group: https://www.santacruzcountyca.gov/OR3/Recovery/LongTermRecoveryGroup.aspx

In this episode of the Passive House Podcast, we welcome Barry Cope, Group Managing Director of the Building Compliance Testers Association (BCTA). Barry shares insights into airtightness testing, certification, and how the UK became a leader in 100% blower door testing for new buildings. He discusses the role of ATTMA, the evolution of the industry, and how airtightness impacts building performance, moisture control, and energy efficiency. The Building Performance Hub: https://www.bcta.group/tbph/The Building Performance Hub Podcast: https://www.bcta.group/tbph/tbph-podcasts/