Concentration of CO2 in the Atmosphere

Boston Hosts the World’s Tallest Passive House

What Lessons Can Your Home Design Take From the Winthrop Center?

Winthrop Center, on right. (Winthrop Center)

Greg and Barb Whitchurch

The Winthrop Center in Boston ( is the tallest and largest office building in the world to earn Passive House certification. Located near Faneuil Hall in Boston’s historic district, it also […]

Architects on Architecting: Join the Hootenanny on Wednesday, October 28

Architecture 2030 is a fine goal. But how do we get there? Not in a vacuum, that’s for certain. Join a panel of experienced passive building architects who will open with PechaKucha presentations, then an open discussion about their experiences–and about the pressing challenges ahead. A Q&A will follow.

Terrell Wong will moderate. Terrell […]

Passive House at Maple Corner: Part 2

E. Montpelier, Central VT Habitat for Humanity PH project. Montpelier Construction builders. Image: Chris Miksic.

How to build your own passive house or remodel

Barbara and Greg Whitchurch

In this article, we’ll describe how you might go about building your own Passive House (PH) or remodel.

First: Get a certified PH professional. Try […]

Have you entered the NAPHC2019 Design Competition?

The NAPHC2019 Passive Projects Competition is Now Open!

Have a passive project you’re proud of?

Showcase your work and celebrate the great strides being made in the field of passive building by entering the 5th Annual Passive Projects Competition! Back by popular demand, this juried competition recognizes fully certified passive building projects of all […]

November 11, 2017 Vermont Passive House Tours

On Saturday, November 11th, Vermont Passive House homeowners (and Passive House Designers/Builders) open their homes and current projects to the public for viewing and presentations. By visiting a Passive House home, office, or even construction site, you can experience the benefits of Passive House first hand!

The Passive House building code assures a healthy, […]

Certified Passive House Designer/Consultant (CPHD/C) Training: Scholarships Available

$500 SCHOLARSHIP available to the first 10 participants courtesy of our sponsor, Green Mountain Power

DATE: Mon, Nov 13 – Fri, Nov 17, 2017 9 am – 5 pm

LOCATION: Green Mountain Power, Montpelier, VT

NAPHN’s Certified Passive House Designer/Consultant course is the premier training program for low-energy, net zero and […]

New England Regional Passive House Gathering

June 23, 2017 12:30 to 8 PM Hosted by passivhausMAINE

WHO: Any member of PHVT. CTPH, PHMA, and phME

WHY: Regional commonalities, strengths, and goals will be addressed as we look to political, ecological, and design challenges and solutions.

WHAT: Strategic meeting and tours of FSP, Viridescent House, and Maine Coast Waldorf School.

WHERE: Friends […]

PH Mass June meeting

Building the First Multifamily Passive House in Massachusetts PH Mass June 13, 2017 6:30 to 8 PM @ BSA Boston Michelle Apigian and Richard O’Dwyer, ICON Architecture

Conceived as a demonstration project intended to set a replicable standard for high-quality. low-carbon development, The Distilleryis the largest Passive House project in Massachusetts. Located near Boston’s […]

Why Build to the Passive House Standard?

Whitchurch Passive House cottage. Courtesy photo

By Barbara and Gregory Whitchurch

Over the years, Green Energy Times has run quite a few articles about Passive House, so it’s likely you’ve seen the term. (Don’t confuse it with “passive solar,” which is just one aspect of Passive House). So what exactly is it, and […]

Last Chance to Register for the Pro Tour of a NZE Passive House & Historic Water-Powered Sawmill

Learn From 6 Years of Data on this Cold-Climate, Net Zero Passive House in Northern NH

View a complete energy case study on this project

Join us tomorrow on a Pro Tour led by host Garland Mill Timberframes in northern New Hampshire. Built in 2010 before cold climate heat pumps were widely available, this […]