In November 2012 I replaced 80% of my home's interior lighting with LEDs (35 bulbs total) - see my LED Lighting, 6-month update blog post.
Today, 12December2014 is my 24 month update:
My 'Life-Test' bulbs (a pair of lights above my fireplace) have been 'ON' continuously for 25 months (760 days x 24hrs/day) - 18,240…Continue
From smart thermostats to air quality monitors to Wi-Fi enabled…
Added by Home Energy Magazine on December 17, 2014 at 4:32pm — No Comments
In September 2013, we posted a blog called Las Vegas: Bright Lights, Green City?questioning how energy efficient a place nicknamed “Sin City” could actually be. That post focused primarily on the growth of LEED-certified buildings in the city. Here we are now, and I see that the 2015 New American Home will debut at the International Builders Show in – where else – Las Vegas…actually, Henderson, which is…Continue
Added by Everblue Training on December 4, 2014 at 8:02am — No Comments
A new study from the National Institute of Standards and Technology (NIST) revealed that poor installation of air conditioning and heat pump units often leads to unsatisfactory energy performance. This research took three years to compile, with the help of surveys, field evidence, and various measurements for modeling. The most common installation errors included leaky ducts, improper refrigerant charge, oversizing of systems, and restricted…Continue
An important deadline is looming for existing HERS Raters. By January 1, 2015, all existing Raters must have passed both the combustion safety written and simulation exams to maintain their certification. If existing Raters do not successfully complete these tasks, they will lose their certification and will not be able to perform home energy ratings as part of their business. This also applies to existing RESNET Rating Field Inspectors.
If you earned your HERS certification prior to…Continue
Added by Everblue Training on November 18, 2014 at 9:15am — No Comments
As many know, by the end of this year all HERS Raters & Field Inspectors (RFI’s) in good standing must complete a three prong CAZ training & testing requirement (assuming it was not part of their original training). While one can debate should they or shouldn’t they have done this, the die has been cast and the mandate has been made. In case this is news to you,…Continue
Added by Sean Lintow Sr on November 19, 2014 at 7:48am — No Comments
Sandeep and Carolyn Sood own several apartment buildings in Chicago, but the 55-unit building at 6731 S. Jeffery Boulevard is special. The building is one of the first in the country to receive the new ENERGY STAR® certification for multifamily buildings.
“For us, it’s an important designation. It shows people that want to live here that we care.…Continue
You have probably seen those amazing images of the world at night as observed from space—hundreds of times. Below is one photo, but many others show expanded views of smaller areas. I still marvel at how those necklaces of light show the shapes of our cities. The lights tell stories, too. For example, the Korean peninsula appears surgically sliced at the Demilitarized Zone,…Continue
With winter right around the corner, many of us start looking at various ways to reduce heat loss and improve energy savings. One of the most common practices of improving energy savings is by installing or improving our homes insulation. This is especially true for those of us who have the luxury of living above a crawl space. Installing or improving crawl space insulation can be very beneficial. But it can also have expensive, negative effects if not done correctly. Here is a list of a few…Continue
While hard-surface flooring is on every list for improving indoor air quality, the type of hard-surface flooring may be problematic, especially if your clients' health is already compromised.
This article on formaldehyde levels in laminate flooring emphatically waves the health flag. The article is based on testing of Chinese-made laminate…Continue
Added by Shawna Henderson on October 10, 2014 at 10:50am — No Comments
The Efficient Windows Collaborative (EWC) has released a mobile app based on it web-based Window Selection Tool. The app is currently available and can be downloaded on iTunes.
The Window Selection Tool mobile app is a step-by-step decision-making tool to help…Continue
Added by Kerry Haglund on September 30, 2014 at 10:57am — No Comments
In July 2013, the State Board of Building Regulations and Standards (BBRS) voted to adopt the 2012 International Energy Conservation Code (2012 IECC) and ASHRAE 90.1-2010 with MA amendments as the new baseline energy code. The BBRS allowed for the new regulations to run concurrently with the current energy regulations until July 1, 2014. During that time, either set of energy regulations could be used when applying for…Continue
Added by Everblue Training on October 8, 2014 at 6:56am — No Comments
Three people who together helped increase the energy efficiency of lighting systems across the world have been awarded the Nobel Prize in Physics, the Royal Swedish Academy of Sciences announced Tuesday.…Continue
Added by Diane Chojnowski on October 9, 2014 at 7:32am — No Comments
In case you haven't heard, last year RESNET created a task force to look at ways to improve the consistency of results among certified home energy raters (aka HERS raters). In mid-August, executive director Steve Baden sent an email about the latest developments in the process. He also attached a document titled…Continue
Added by Allison A. Bailes III on October 2, 2014 at 11:34am — No Comments
Home Energy magazine (HEM) has been publishing articles about residential energy efficiency for 30 years. Our articles, editorials, letters, and advertisements provide a kind of window into the evolution of energy conservation technologies, policies, and organizations. Initially, the focus was on audits and simple retrofits, such as weather-stripping and insulation. In those…Continue
We now know that people learn effectively when they construct their own learning, rather than being told about it. The instructor moves off the stage and becomes the Guide on the Side.…Continue
I was first impressed by Rob Nicely when I heard him speak these words to an audience of builders, designers, and building scientists: "We’re the warriors of sustainability...We already know everything we need to know to build sustainable buildings—the question is, Can we internalize it into our culture and incorporate that learning into our practices?"Continue
Added by Tom White on September 24, 2014 at 10:30am — No Comments
The National Association for State Community Services Programs (NASCSP) met in Raleigh, North Carolina, for its annual training conference. Here are some personal highlights:
Added by Jim Gunshinan on September 23, 2014 at 2:03pm — No Comments
Mini-Split Heat Pumps are Quirky and Still Effective
The name "mini-splits" generally refers to heat pump systems with one outdoor unit and one or several smaller capacity air handlers. The efficiency of their operation comes via the inverter compressor and variable refrigerant…Continue
Liz Vogel replaced the windows and updated the heating system in her small multifamily building in the Logan Square neighborhood of Chicago. But she still noticed that parts of her home were not staying warm in winter. So she set out to solve the mystery of the missing heat. She saw icicles hanging from her roof, and that was a clue that pointed to where heat was escaping. The presence of these “ice dams” meant that Liz was paying to heat her roof and melt the snow instead of heating her…Continue