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Concentration of CO2 in the Atmosphere

Free Webinar Feb 19 – The 2021 IECC: How Local and State Officials Just Took a Giant Leap Toward Net Zero Buildings in America

Free Webinar: The 2021 IECC: How Local and State Officials Just Took a Giant Leap Toward Net Zero Buildings in America

February 19, 2020 2:00 pm Eastern

with Bill Fay of The Energy-Efficient Codes Coalition

Late last year, local and state officials voted in droves to boost building efficiency […]

New Notice of Intent for a Funding Opportunity to Improve Energy Efficiency and Demand Flexibility of Buildings

Today, the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) announced its intent to issue a Funding Opportunity Announcement (FOA) entitled “Connected Communities.”

The Connected Communities FOA would demonstrate and evaluate the capacity of energy-efficient buildings to interact with one another and the grid to provide greater degrees of demand […]

Get Free Tickets to New York Build

Would you like to free tickets for you and your team to attend New York Build?

New York Build is the leading construction & design show for New York and the Tri-State area and is taking place at the Javits Center on March 3rd & 4th. The show will feature: AIA / CES approved workshops, […]

Clean Energy Champion of the Year

Clean Tech Business of the Year Awardees Recognized at Annual Member Holiday Dinner

Clean Energy Champion Award Winner, Tony Giunta (middle), poses with Clean Energy NH Staff (from left to right): Henry Herndon, Executive Director Madeleine Mineau, Brianna Brand, and Michael Behrmann. Photo credit: Clean Energy NH.

Clean Energy NH, the Granite State’s leading […]

Understanding the Blower Door Test

Air infiltration at outlet. Blue is colder area indicating air coming from outside. Courtesy photos.

Michael Canavan

I received a call from a homeowner saying they had a blower door test done to find out how well their house was sealed against drafts. They were looking for any places that air could be leaking […]

Recycling Glass into Aggregate – Glavel

Glavel foam glass aggregate is a super-light insulating gravel. Courtesy photo.

George Harvey

Glavel is a company based in Burlington, Vermont. It sells foam-glass aggregate. Some people might look at it and ask what good it is. Others will be delighted with its possibilities.

Science is full […]

DIY Energy Upgrades: Basements

Foam insulation on walls and poly vapor barrier on floor. Photo courtesy Dave Keefe.

Dave Keefe

Most of us don’t think much about our basements, especially if we have one that isn’t particularly pleasant. But the basement is part of the house, and what goes on there affects our fuel bill and how comfortable […]

AeroBarrier Case Study: Lower Level of Brick Church, ca 1869

Nate Gusakov

This is the fourth article in this series, highlighting our experiences installing AeroBarrier around New England. Here’s a quick refresher on the technology.

The lower level of this former Methodist church is being used for offices. Air leakage was reduced by 87% using AeroBarrier. Courtesy photo.

AeroBarrier is a patented building envelope […]

Lewis Creek Cottage: Net-Zero Energy with a View

All images courtesy Ryan Bent Photography

Barbara Whitchurch

The Lewis Creek Cottage is a net-zero-energy home designed by Rolf Kielman (AIA, Leed AP) for TruexCullins Architecture + Interior Design. It was designed for his daughter, her husband and their new baby boy. Kielman told me that the family was fully on board with net […]

Affordable Leaky Window Solutions

Tin Mountain Energy Team Wants to Help Warm Up Your Windows

A Window Quilt® installed above a set of double windows. Photo courtesy of Window Quilt®.

Russ Lanoie

The Mount Washington Valley’s Tin Mountain Energy Team, originally formed to help local residents install solar hot water systems following the PAREI model (Plymouth Area Renewable […]