Leadership Circle

Tim Delhey Eian, Founder
Dipl.-Ing. Arch. , Certified Passive House Designer (PHI)
Principal – TE Studio

Tim Eian is a German-born and trained architectural engineer with over seventeen years of professional experience in innovative high-performance designs. He is passionate about holistic design solutions that deliver on all aspects of sustainability. In addition, Tim is a master carpenter, graduate of the technical University of Kaiserslautern, Germany, and one of the first professionals in North America to design a certified Passive House building.


Mike Woolsey
Certified Passive House Designer (PHI)
Business Development Manager – Swegon

Mike Woolsey began his career in the HVAC industry in 1985, while completing his BSME degree from Washington University in St. Louis, although his interest in building energy conservation was first inspired by the energy crisis of the 1970s. Currently specializing in applications, market management and business development, Mike has presented hundreds of seminars across North America and is currently serving as Business Development Manager in the Commercial Ventilation group of Swegon North America. Mike is also a member of ASHRAE.


Jarad Miles
Certified Building Analyst, Building Performance Institute (BPI)
Center for Energy and Environment (CEE)

Jarad Miles is a Field Supervisor and Energy Auditor in support of CEE’s Home Energy Squad program. This work primarily includes managing a small team of energy counselors and auditors as well as providing in-home energy analysis and consultation to Minnesota homeowners looking to improve the efficiency, comfort, and durability of their home.

Jarad previously worked as a technical writer at an engineering consulting firm and later as a freelance writer-editor and media strategist for a design-build firm in Portland, Oregon focused on quality and sustainability in the high-performance building sector.

Jarad holds a B.S. in Journalism and Mass Communications from South Dakota State University and a minor in Psychology.


Marcy Conrad Nutt
Registered Architect AIA, NCARB, LEED AP
Architect – Alchemy

Marcy Conrad Nutt is a licensed architect in Minnesota with over sixteen years experience with many building types and scales. She believes that utilizing the scientific approach of Passive House is the best way to make smart conservation, health, and fiscal decisions for building projects.

She enjoys working collaboratively, brainstorming new ways to find common goals between different interests, and continues to learn and teach others how to build responsibly.

She is an architect with Alchemy in St. Paul, where the firm utilizes the prefabrication process to create smaller, smarter, tighter homes, and is currently studying to become a Passive House Designer.


Rolf Jacobson
Researcher, Designer and Consultant
University of Minnesota Center for Sustainable Building Research, Skandia Design, CertiPHiers

Rolf Jacobson is a Research Fellow at the Center for Sustainable Building Research. He holds a Bachelor of Arts degree in Physics and Mathematics from St. Olaf College in Northfield, MN, and a Master of Architecture degree from the University of Minnesota (UMN). He is currently working towards a Master of Science degree in Sustainable Design at the College of Design at UMN. Prior to his position as a Research Fellow, Rolf worked at the CSBR as a Research Assistant for two years. Rolf has also worked for local architecture firms that specialize in sustainable design, and worked as a carpenter for area home builders. Some past projects at the CSBR include work on the CSBR Site and Building Carbon Calculator, comparative analysis for the Design Guidelines for Sustainable Housing report, which examined nineteen different rating systems and design guidelines from around the world, and analysis of energy use in two Washington County service centers, done as a component of a broader post occupancy evaluation report. Current projects include work on the Minnesota Sustainable Housing Initiative web site and database, and thesis research on the costs and energy performance of residential building envelopes. For the 2010-2011 academic year, Rolf won a Fulbright scholarship to continue his thesis research in Trondheim, Norway. There he will work in collaboration with the Center for Zero Emissions Buildings, investigating cold-climate residential envelopes.


Nicholas Krause
Charles Stinson Architects

Nicholas Krause is an intern architect with over five years of experience working in high-end residential firms in Chicago and Minnesota. He is drawn to Passive House for its rigorous, conservation-first, approach and the architectural opportunities it affords.

An avid birder and gardener, Nicholas holds a Master of Architecture degree from the University of Illinois-Chicago and is currently seeking licensure.


Paul Trieu

Paul Trieu
Sustainable 9

Paul Trieu recently relocated back to Twin Cities, MN. He is Passionate about research, appropriate design, and systems thinking.


Jeanne Larson

Jeanne Larson
Realtor at Lakes | Sotheby’s International Realty

Jeanne Larson’s passion for real estate began in the 1990s while living abroad in Spain, France, Argentina, Costa Rica and Mexico. She was always thrilled to be invited inside a friend’s home, which enhanced my understanding of the local culture and lifestyle. In the process, she renovated a couple of homes in Mexico and France with the help of experienced locals.

Jeanne grew up on a lakeside farm in East Central Minnesota and it was after living internationally that I began to realize how special our area is. I continually look for learning opportunities with respect to conservation of resources and energy-efficiency of homes and buildings.


Etienne Gubler, CPHC

Etienne Gubler
CEO Siga North America

Etienne Gubler is a highly ambitious and inspiring B2B sales leader with extensive international work experience. Outstanding intercultural competencies with language proficiencies in English, German and French. He has a deep understanding of North American building and construction industry and its market dynamics. Etienne is passionate about high-performance buildings.