States up efficiency investments and power savings; push net-zero buildings and electric vehicles; NJ, CT, CO, SD improve most; MA and CA lead
As the U.S. government loosens environmental rules, states are investing more in energy efficiency and delivering increased power savings, according to the 2018 State Energy Efficiency Scorecard. This 12th annual report from […]
Gryphon Doors – keep your home warm and tight with mycelium
Gryphon Door in Charlotte, VT. Photo: Ben Graham
By Ben Graham
At the beginning of the last energy efficiency revolution that brought about Passive House, Living Building Challenge, Net Zero and Vermont High Performance Homes, it was widely reported that windows and doors […]
CO2 levels increased during the El Niño period (2015-2016) due the droughts causing less vegetation available to take CO2 out of the atmosphere. Photo: Pixabay.
By George Harvey
According to the World Meteorological Organization (WMO), the levels of carbon dioxide (CO2) in the atmosphere set a historic record in 2016. The same […]
Tesla Roadster 2.0. Tesla image.
By George Harvey
Readers of Green Energy Times will probably recall an article that appeared on the front page of the October issue, “New Tesla Semi-Truck” (http://bit.ly/GET-Tesla-semi). We had expected to go to press with an article on the new Tesla truck, which was scheduled to be […]
A 134-kW rooftop solar array was inaugurated in November 2017 at the DHMC’s Heater Road facility. The 378 solar panels will offset 10% of the electrical demand of the Heater Road DHMC building. Photo courtesy of Norwich Solar Technologies.
By Thaddeus Rumple
Dartmouth-Hitchcock Medical Center (DHMC) in Lebanon, New Hampshire, has been […]
Low flow showerhead. Credit: en.wikibooks.org
by Bill Gauley and John Koeller
Did you know that, on average, people take 0.69 showers per day? Did you know that the average shower lasts 7.8 minutes? Did you know that showering uses a lot of water? Showering currently accounts for almost 20% of all indoor residential water […]
Many locally-sourced wood and other fiber materials were used to build this high-performance home. Builder: New Frameworks. Photo credit: Studio SB Photography, 2016.
By Ace McArleton
“The built environment can switch from being a problem to being a solution.” Bruce King, The New Carbon Architecture (anticipated fall 2017).
Folks, let me introduce you to […]
Demonstrate Mastery in Construction and Efficiency
A BrightBuilt Home in Meriden, NH. This zero energy home was built by RH Irving. This south-facing side features Logic windows and doors and a solar array installed by Norwich Solar Technologies;
by Chris Gillespie
If you live in or near New Hampshire and are thinking […]
R-60 insulation for the standing seam roof. Photos: Janice and Steve Kurkoski
By Marc Rosenbaum
I’m excited because I’ve been putting together a new online course on Deep Energy Retrofits (DER). More so than the course I teach on Zero Net Energy Homes, it’s focused on the multiple approaches and techniques for taking […]
Best in Show for Large Residential Project
Andy Ellis receives ICF Builder Award for Best in Show in the Large Residential division at the World of Concrete Trade Show in Las Vegas on January 19, 2017. Photo courtesy Peter Ellis.
By George Harvey
Insulating Concrete Forms (ICF) have been around for […]