Stephanie Horowitz

Stephanie is Managing Director of ZeroEnergy Design (ZED), a green architecture and energy consulting firm specializing in new construction and major renovations. The firm’s commitment to innovative and ecologically sensible design is reflected in their multidisciplinary knowledgebase, which spans the fields of architecture, mechanical engineering and finance. ZED is committed to designing homes and buildings that use 50% less energy than building code requires, in pursuit of energy independence.

In addition to her role at ZED, Stephanie serves on the Massachusetts Design Selection Board as the AIA of Massachusetts’ representative and is a founding board member of Passive House New England. She holds a Bachelor of Architecture from Cornell University. Stephanie is a Certified Passive House Consultant and a Massachusetts Registered Architect.

Nick Falkoff

Principal of Auburndale Builders Inc.  He has worked in residential and commercial construction for 17 years, the company received the Angie’s List Service Award nine years in a row. Projects range from custom built Passive and Net-Zero homes to historic restorations of Victorian houses.  Currently working on a passive retrofit of a commercial office and classroom.   3 Year Board Member at Builders & Remodelers  Association of Greater Boston, CAPS Certified Aging in Place Specialist. Current VP of Passive House of Massachusetts and active NESEA Member.

Luke McKneally

Luke is a registered architect and CPHC with over 20 years of diverse design and project development experience in architecture and renewable energy systems. He trained as a registered architect under the guidance of talented principals and staff at The Stubbins Associates (now KlingStubbins), Lindsay Architecture Associates, and Einhorn Yaffee Prescott (now EYP). During that period, he became increasingly involved in sustainability and environmental issues and took a sabbatical to expand his knowledge of living systems, earning a Masters degree in Biology from Harvard. Then at New Ecology, Luke further developed his energy efficiency and sustainable design focus, earning LEED and Passive House credentials working on high-performance multifamily housing and providing WUFI Passive modeling and Passive House design guidance for a range of projects. Luke is now focused on improving the efficiency and sustainability of every building’s materials, systems, and construction to provide owners and tenants with durable and healthy buildings that make a positive impact on our environment. Wherever possible, he looks for opportunities to integrate renewable energy systems and strive for carbon neutrality, with fewer fossil fuels. 

John Rodenhizer

John is a native of Cape Cod who began working on family homes during his high school years, learning the nuts and bolts of home construction from local builders before attending Wentworth Institute of Technology in Boston, earning a Bachelor of Science in Building Construction Engineering Technology. This was excellent preparation for the launch of his design/build company, which he operated successfully for 17 years before becoming a project manager and estimator for a respected custom building company on Cape Cod. He now operates JSR Adaptive Energy Solutions, where he offers comprehensive energy auditing, assistance with new code compliance, third party verification services and peace of mind to homeowners. John Is a CPHC, PHIUS Certified Builder, PHIUS+Rater, and Certified PHIUS Verifier for Multi family buildings

Michelle Apigian

A passionate advocate for sustainability, Michelle Apigian, AIA, AICP, LEED AP, CPHC, Associate at ICON Architecture, is an architect, planner and urban designer who has worked on a broad array of project types and scales, from large, multi-phase master plans and design and construction of new multifamily developments to strategic infill , adaptive reuse and modernization projects. Her work has achieved LEED certification at numerous levels and soon will include the first Passive House certified multifamily project in New England. Michelle received a B.A. from Dartmouth and Masters in Architecture and City Planning from MIT.

Betsy Harper

Since 2013, Betsy has been the Sustainability Program Manager for the Department of Housing and Community Development (DHCD) – the state agency which oversees 44,000 units of low income, multi-family housing located throughout the Commonwealth. Prior to this role, Betsy worked as a consultant at the Vermont Energy Investment Corporation (VEIC), advising state utility councils and energy agencies in four New England states. Previously Betsy was the Project Manager for a developer of two new construction urban infill sites – giving her critical on-the-ground experience with design, financing and construction. She recently created a panel for NESEA’s BE18 Boston designed to engender a lively discussion on the merits and challenges of three metrics – Enterprise Green Communities, Zero Net Energy and Passive House. Betsy received her BA from Williams College and her MBA from Harvard Business School.


Hank Keating

Hank Keating is a registered architect with over 30 years of experience in the design and construction of multi-family residential developments. Recently retired from Trinity Financial, Hank completed over nine affordable housing developments totaling over 1,500 units in Massachusetts, Rhode Island, Connecticut and New York City while at Trinity. Prior to Trinity, Hank spent 10 years at the Boston Housing Authority as the Senior Architect for the Hope 6 Program where he was instrumental in the planning and redevelopment of over 3000 public housing units. For the last 10 years, Hank has been engaged with the Passive House movement and has designed and completed a passive house for himself while pushing to move Trinity's large scale affordable projects toward Passive House standards.

Aaron Gunderson

Aaron is the Executive Director of Passive House Massachusetts, overseeing member engagement, public outreach, educational programing, and organizational administration. He has over a decade of experience in environmental organizing and field outreach for non-profits, advocacy groups, clean-tech companies, and solar power installers. He holds a Master's in Sustainability from Harvard University where he focused on sustainable building design, embodied energy analysis, greenhouse gas reporting, and community-level climate adaptation. Aaron lives with his wife in an old (and not very Passive) house in Dorchester and can frequently be found hiking, biking, or cross-country skiing across New England.

Advisers and Former Board Members

Mike Duclos

Mike Duclos is a principal and founder of The DEAP Energy Group, LLC, a consultancy providing a wide variety of Deep Energy Retrofit, Zero Net Energy and Passive House related consulting services. He is responsible for the design and certification of the second certified Passive House in Massachusetts, and assisted with the design, and preparation of the PHPP for the first EnerPHIT certified home in the US. Mike is a founder and member of the Board of Directors of Passive House New England.

Paul Eldrenkamp

Paul Eldrenkamp is owner of Byggmeister, Inc., a Newton, MA-based design/build remodeling founded in 1983. He is also a principal of The DEAP Energy Group, an energy consulting firm that specializes in three areas of residential construction: Passive House, Zero-Net Energy, and Deep Energy Retrofits. Paul is a certified Passive House consultant and serves on the board of the Northeast Sustainable Energy Association.

Fred Gordon

Fred Gordon is a long-time environmental activist, working with Newton Green Decade and on the Board of Mass. Climate Action Network, besides being a founding member and Board Member (and Treasurer) of PHMA. He owns and manages The Distillery building in South Boston, featuring a 65-unit Passive House section and an old industrial building with about 150 artists, artisans, and various small manufacturing people working and living there. The building brings together the cause of the arts - maintaining affordable arts space in the  city - with a broad variety of environmental goals - including Passive House. He studied philosophy at Harvard, got his PhD at UC San Diego, spent 15 years (eight of them at the Harvard School of Education) on researching and consulting on democratic workplaces, and over the past 10 years became increasingly interested in architecture and the environmental crisis. He lives in South Boston with his wife, Judy Hall, who teaches psychology at Northeastern.