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Concentration of CO2 in the Atmosphere

Zero Energy Now

Farmhouse, Underhill, VT. Energy saved: 88%; annual energy cost savings: $3,885. 71% renewable energy – solar PV, cord wood, and pellets. Photo: Building Energy

George Harvey

The June 2017 edition of Green Energy Times had an article, “Saving 79% in Existing Homes,” which provided an initial report on the results of the […]

Buildings as Carbon Sinks

Happiness Hill is a straw-bale addition to an existing cabin which New Frameworks built in 2014. The house is built with natural clay plaster finish on the interior, local wood siding exterior, and an interior local wood timber frame. The square footage of the home was doubled while keeping the energy usage the same. […]

A Growing Interest in Window Inserts in Vermont

Shrinking window plastic to take out wrinkles in Thetford, VT. Photo courtesy of Bob Walker.

Green Energy Times staff

Volunteer groups in Vermont have begun to adopt a Community-Workshop approach to the problem of drafty windows and high heating bills. Custom-fitted inserts, that can be equally suitable for old casements or new […]

NYC’s Climate Mobilization Act

What Does It Mean for Building Owners?

By Marc Zuluaga

In April of this year, Introduction 1253-2018 was approved by the New York City Council along with several other major pieces of legislation as part of a Climate Mobilization Act. While it will take some time to more precisely gauge the Climate Mobilization Act’s impact […]

Habitat for Humanity: Champions of Efficient Housing in Vermont

Vermont’s first certified Passive House, built by Green Mountain Habitat for Humanity in Charlotte, Vermont. Image: Philip Jensen Carter.

Peter Schneider

Working as an energy consultant for Vermont’s statewide energy efficiency utility has allowed me to witness – and play a role in – one of the greatest affordable housing success stories in […]

Better Buildings by Design 2018

By Barb and Greg Whitchurch

We both attended Better Buildings by Design (BBD) in Burlington, VT as representatives of Green Energy Times. Having attended many sustainable building events, we can agree with many BBD attendees and vendors that BBD is becoming the premier conference venue for building science education in the Northeast

This is the […]

The “Greenest Building” in Portland, Maine

Bayside Anchor apartments includes 167 rooftop solar panels to produce 70,000 kWh of clean electricity.Photo: Matthew Drost, courtesy of Avesta Housing.

By Barbara and Greg Whitchurch

It might very well be downtown Portland’s greenest building — especially the exterior, which is painted various shades of bright green. But what’s going on beneath […]

Home of the Future in Woodstock, NY

Woodstock, NY Passive House in the fall. Photo courtesy of Daniel Levy, Ph.D

By Marie Caruso

A house recently built in Woodstock, NY, could be the vanguard of the future in zero-energy housing.

Daniel Levy, Ph.D., a former industrial education professor and certified Passive House consultant and builder, has constructed a two-story, 2350 square […]

A Net-Zero Solar Challenge at Walden Pond

“I found myself in a schoolroom where I could not fail to see and hear things worth seeing and hearing.” Henry David Thoreau, speaking of being in nature.

Rendering of the Walden Pond Visitors’ Center. Photo courtesy of Maryann Thompson Architects

By Emma Rumple

There was a time when people in this […]

Air Barriers for Retro-fits

Exterior air barrier fabric from foundation to roof. Courtesy photos.

By Michael Goetinck

In order for a building’s insulation to be most effective it needs to be in contact with an air barrier. In an ideal world a home’s air barrier is continuous. This can be achieved through thoughtful design and construction when building […]