Education/Advocacy
Positive Energy’s Education & Advocacy Efforts
Strategic Market Influence
Positive Energy is a highly specialized Mechanical, Electrical, and Plumbing (MEP) engineering firm, distinguished by our profound commitment to creating high-performance outcomes in high-end residential architecture. The firm's fundamental objective centers on harnessing a deep knowledge of building science and human-centered design/engineering principles to create spaces that are not merely functional but are inherently healthy, comfortable, and resilient, elevating the overall lived experience of architecture. This specialized market focus allows us to consistently apply and refine advanced building science and human-centered design/engineering methodologies, which are often complex and require integrated approaches than those typically found in broader market segments. Operating in this niche is a strategic approach, enabling us to pioneer and showcase the tangible benefits of advanced sustainable design in a highly visible sector. The intention is to influence broader industry adoption by showcasing what’s possible.
Positive Energy’s broader contributions to the AEC industry are extensive and multi-faceted. Not only do we feature a portfolio of award-winning project collaborations that consistently push the boundaries of sustainable design, we are also deeply engaged in the industry through participation in leading conferences, where our firm leaders often present keynotes and sit on expert panel discussions. We dedicate substantial effort to education and advocacy, championing Passive House (Phius) and net-zero energy building principles through various publications and our audio show, "The Building Science Podcast". This powerful combination of deep scientific understanding, practical building experience, and active industry engagement positions us well to strive to be thought leaders, driving innovation and advocating for systemic change in the built environment.
Notable Conference Presentations & Seminars
Positive Energy has been strategically presenting on a range of topics for information-hungry audiences all over North America since 2012. We have long held the ethos that articulating ideas and showing examples from our day-to-day work helps us educate others on first-principles-thinking that is so badly needed in the AEC industry. Architecture firms and builders have become exhausted by product manufacturers lunch-and-learn formats because they are product-centric and don’t connect the dots to a more holistic understanding of how buildings work. Expanding the lens to include adjacent disciplines across the scientific field, reminding folks of building science basics, and showing real world case studies is a powerful antidote.
2025
“Architectural Paradigms and Adaptation” (Keynote Address)
Passive House Northwest Conference, Portland, OR
“Building Science 2.0 - Next Level Systems Thinking” (Keynote Address)
BEC-Iowa Symposium, Des Moines, IA
2024
Expert Panelist
Facades+ Austin, TX
2023
“Finding Next Level Leverage” (Keynote Address)
PhiusCon, Houston, TX
Kristof Irwin, Graham Irwin (Essential Habitat Architecture)
“Make it PHun and Make some PHriends - Market Transformation Through Community”
PhiusCon, Houston, TX
“Introduction to Passive House”
2022
“Development of a Battery Capacity Sizing Tool for Optimal Sizing of Residential-Scale Backup and Microgrid Systems”
ASHRAE Building Performance Analysis Conference, Chicago, IL
Maya Hazarika (Positive Energy Alumnus, Thornton Tomasetti), Kate Bren (Positive Energy Alumnus, Cyclone Energy Group), Charles Upshaw (Alumnus, IdeaSmiths)
“Path to a High-Performance Home”
“Science and Storytelling”
International Meeting of The American Society of Agronomy (ASA), Crop Science Society of America (CSSA), and Soil Science Society of America (SSSA)
M. Walker
2021
“The Code Change: Reframing The HVAC Challenge Through The Lens Of Design”
2019
“Storing and Maintaining Sensitive Biological Machines Inside Fluid-Filled Boxes”
ATX Building Performance Conference, Austin, TX
“True Sustainability and Regeneration for the Built Environment”
AIA Austin Design Excellence Conference, Austin, TX
Kristof Irwin, David McFalls, Charles Upshaw
“Five Principles to Delivering Healthy Buildings in Humid Climates”
Gulf Coast Green, Houston, TX
“Building Science Perspectives on Earthen Construction”
Earthen Construction Initiative 2nd Annual Austin, Austin, TX
Expert Panel Moderator
ATX Building Performance Conference, Austin, TX
2018
“Houston, We Have a Problem! Sensible Heat Ratios for Ultra-Low Load Homes Present Challenges for High Efficiency Equipment”
ASHRAE Annual Conference, Houston, TX
Expert Panel Moderator
The Humid Climate Conference, Austin, TX
“Redefining Sustainable Design: Raising the Bar for Performance Expectations of Buildings”
2017
“Mechanical Systems for Health & Comfort in Humid Climates”
AIA Houston Residential Committee Seminar, Houston, TX
“Indoor Health and Comfort in Humid Climates”
“Healthy Homes - Applied Building Science”
“Gas vs Electric - Heating Air & Water for Homes”
Austin Infill Coalition Seminar, Austin, TX
2016
“Learning BS To Avoid The BS
International Builder Show, Orlando, FL
“Building Performance Through Integrated Design & Project Delivery”
Workshop For AIA San Antonio, San Antonio, TX
“Hot Topics In Building Science”
“Building Performance Through Integrated Design & Project Delivery”
AIA Austin Design Excellence Conference, Austin, TX
Kristof Irwin, Ernesto Cragnolino (Alterstudio Architects), Eric Rauser (Rauser Construction)
2015
“Enclosures and Mechanical Systems”
AIA Austin Design Excellence Conference, Austin, TX
Kristof Irwin, Matt Risinger (Risinger Build)
2014
"Beyond Mini-Splits: An Introduction to Variable Capacity Equipment for Whole-House HVAC Designs"
RESNET Conference, Atlanta, GA
Kristof Irwin, Allison Bailes (Energy Vanguard)
"Mobile Data Collection and Ratings: Touch and Go"
RESNET Conference, Atlanta, GA
Kristof Irwin, Allison Bailes (Energy Vanguard)
“HVAC for Hot Humid Climates”
AIA Austin Design Excellence Conference, Austin, TX
Kristof Irwin
“HVAC & Moisture Control for Hot Humid Climates”
Austin Energy Green Building Program Seminar, Austin, TX
“HVAC & Advanced Commissioning”
Austin Energy Green Building Program Seminar, Austin, TX
“Phius+ Standard Introduction”
Private Seminars For 10 Different Firms, Austin, TX
2013
“Hierarchy, Scale & Relation in Building Science: Focus on Moisture & Building Materials”
2012
“Comparison of Testing Protocols & Certification Standards: RESNET & PHIUS+”
University Guest Lectures
It is imperative for architecture and engineering schools to engage with building science and engineering practitioners to help bridge the gap between theoretical/academic design and practical, real-world high-performance design and construction. We have been engaged with various academic institutions since 2012, offering a range of lecture topics to support undergraduate and graduate students break through pedagogical bottlenecks.
“Earthen Architecture: A Brief Journey Through History, Culture, & Technics”
“Building Science: Framing The Built World Through A Systems-Thinking Lens”
“On Cooling & How It Doesn’t Actually Exist”
“Breaking the Norm: Making Passive House Possible in Emerging Markets”
Climate Change: A Global Affair, Panel Discussion
“The Building Envelope, Heating, Cooling, and The Refrigeration Cycle”
“High Performance Mechanical Systems”
“Systems Thinking & The Built Environment”
"Air as Material"
“Psychrometrics & Engineering Controls”
“Ventilation Methods”
Notable Industry Publications
Positive Energy personnel are prolific contributors to various publications, both through our internal blog and external industry journals, endeavoring to provide thought leadership in building science and MEP engineering.
The Fine Homebuilding Magazine’s “Ask The Experts” Segment
Journal of Light Construction (JLC Online)
Kristof Irwin
Journal of Light Construction (JLC Online)
Journal of Light Construction (JLC Online)
"People, Planet, Design: A Practical Guide to Realizing Architecture's Potential" by Corey Squire (Positive Energy Alumnus, Bora Architects)
Journal of Light Construction (JLC Online)
Journal of Light Construction (JLC Online)
“Changing The Conversation: Passive House In Humid Climates”
Passive House Accelerator
Passive House Accelerator
M. Walker, Kate Bren (Positive Energy Alumnus, Cyclone Energy Group)
Notable External Media Appearances
We live in a time where media reach is more fractured and potent than ever before. Positive Energy has endeavored to stay plugged into both traditional print media, as well as various social media channels to support education on first principles thinking that is so badly needed in the AEC industry.
"Filtration, Dehumidification & Ventilation"
Green & Healthy Maine HOMES Article
Alta Journal Article
The Fine Homebuilding Magazine Article
“Making the Most of Mini-Splits”
The BS + Beer Show
The Edifice Complex Podcast Interview
"Human Psychology and the Built Environment with Kristof Irwin"
Steven Winter Associates "Buildings and Beyond" Podcast
Matt Risinger’s The Build Show Interview
Matt Risinger’s The Build Show Interview
“Ultra Efficient & Comfortable HVAC - Mitsubishi VRF System Tour”
Matt Risinger’s The Build Show Interview
“Building Science Training - Advanced HVAC & Mistibushi’s VRF”
Matt Risinger’s The Build Show Interview
“How to Design and Install a Good HVAC System for the South”
Matt Risinger’s The Build Show Interview
“Tight Houses vs. Leaky Houses”
Matt Risinger’s The Build Podcast Interview
Matt Risinger’s The Build Show Interview
Publicly Offered Resources
The Building Science Podcast
"The Building Science Podcast," hosted by Kristof Irwin and co-created and produced by M. Walker, has served as a consistent and influential educational platform since its inception in 2015. The podcast's stated mission is to "move the AEC forward through an understanding of building science and human factors in architecture, engineering and construction."
The Positive Energy Blog
Positive Energy is not just a residential MEP engineering company. We are a group of people deeply interested in and passionate about a wide range of topics. We are life-long learners and find it fulfilling to research and explore many adjacent fields to inform the work we do day-to-day. Read more about a range of building science, MEP engineering, architecture, and more topics on our company blog.
Community Building Efforts
The Building Science Philosophical Society
The Building Science Philosophical Society is an informal society of architecture, construction, and engineering nerds in the Austin, TX area who meet once a month to talk and have a few beers together. Positive Energy founded this society because we believe good scientists ask meaningful questions. We also believe that truly integrated solutions to the world’s problems come from building community. We don’t offer CEUs or stick to overly formal programming because we believe real learning happens when people can relax and be themselves in conversation.
Volunteer Positions/Committees
Kristof Irwin
Voting Member ASHRAE TC-2.1 (Physiology & Human Environment)
Voting Member ASHRAE SSPC-55 (Thermal Comfort)
Voting Member ASHRAE SSPC-62.2 (Ventilation/IAQ)
Former Member RESNET ANSI Standards Development Committee
Former Chair AIA Austin's Building Enclosure Council
Board Member Phius Alliance Austin
Co-founder of The Humid Climate Conference
M. Walker
Regional Representative Phius Alliance (South Region)
Board Member Phius Alliance Austin
Co-founder of The Humid Climate Conference
Former Chair Austin AIA’s Committee On The Environment
Former Advisory Committee Member City of Austin Mayoral Office
Former Member Texas Society of Architects Sustainability Task Force
Loren Bordelon
Former Board Member Phius Alliance Austin
Eric Griffin
Former President Phius Alliance Austin
Board Member Phius Alliance Austin
Co-founder of The Humid Climate Conference
Cameron Caja
Regional Representative Phius Alliance (Central Region)
Planning Committee Member for The Humid Climate Conference
Co-Organizer BS + Beer Northwest Arkansas
Advisor for Habitat for Humanity of Northwest Arkansas