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Concentration of CO2 in the Atmosphere

New DOE Rule For Evaluating Energy Conservation Of Appliances & Equipment

Appliance and equipment standards are saving consumers and businesses billions of dollars. Image:

Effective date of this rule is October 19, 2020.

The U.S. Department of Energy (DOE) has published a Final Rule amending its decision-making process for selecting energy-conservation standards by specifying that it will conduct a comparative analysis of the relative […]

Energy Efficiency Appears Prominently in New Climate Plans

Wendy Koch, ACEEE Senior Director, Marketing and Communications

United States Capitol in Washington DC at night

Energy efficiency appears prominently in recent proposals to address climate change, underscoring its ability to deliver dramatic cuts in greenhouse gas emissions.

Nationwide building retrofits, net-zero construction, fuel efficiency, electric vehicles, and industrial decarbonization — cornerstones of the […]

Efficiency Vermont’s Efficiency Excellence Network Contractor Spotlight:

Alliance Mechanical of Essex Junction, VT

The Alliance Mechanical Team. Courtesy photo.

Interview with Tim Campbell, Energy Solutions Manager

1. What is your area of expertise?

Alliance Mechanical’s expertise is in proactive maintenance, HVAC system repair and replacement, building automation, and boiler services, all for commercial customers. Building automation includes the latest energy […]

The Window In Winter: A Cool Little Microclimate

Side-by-side office windows. Window on right has thermal shade drawn, window on left is uncovered. Photo: Zone 6 Energy.

Nate Gusakov

“We really need new windows. There’s always a draft coming through them!” I hear this a lot from clients who are looking to improve the comfort and efficiency of their home. In certain […]

Building with the Sun

House from northwest: Visitors arriving see nothing to make them aware that this is a passive solar house. Images: Russ Lanoie.

Russ Lanoie

Like many first-time do-it-yourself homebuilders, I made lots of mistakes when designing our solar saltbox home. Not enough closets, family and dining areas not adjacent to each other, primary chimney in […]

Connected Communities: A Multi-Building Energy Management Approach

Thursday, July 30, 2020, 1:00 PM – 2:00 PM ET

Hear from experts at the U.S. Department of Energy’s Building Technologies Office, National Renewable Energy Laboratory, and Rocky Mountain Institute about the results of their recent study on connected communities. The white paper—Connected Communities: A Multi-Building Energy Management Approach—explores factors that influence the development […]

The FY21 Building Communities Grants

FY21 Building Communities Grants Announced

The FY21 Building Communities Grants through the Department of Building and General Services (BGS) is now available for applications. The Building Communities Grant Program consists of the Recreational Facilities Grant Program, the Regional Economic Development Grant Program, and the Human Services and Educational Facilities Grant Programs. These grants are intended […]

Summer Ventilation and Cooling

Using Air to Air ERV to precool the Fresh air in Summer time. Image Wikimedia Commons/MoeSalem

Michael Canavan

Now that summer is approaching, homeowners need to consider the summertime ventilation and cooling needs for their homes considering energy usage.

Natural ventilation is as simple as opening windows on your house in a way that […]

Where’s the Water Coming From?!

Simple Rules, Complex Systems

A single-fan blower door test set up to depressurize the building and help determine where the air was leaking the most. Courtesy photo.

Nate Gusakov

The physics are relatively simple. Here are the two most important rules: 1. Heated air rises. 2. Condensation occurs when warmer moist air meets […]

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 […]