Featured Blog Posts (642)

Free Electricity

A curious situation has recently arisen in electricity grids around the world: The wholesale price of electricity has occasionally gone negative. This means that the market will pay customers to use electricity. The grid in Texas experienced negative prices last September. Soon afterward, a Texan retail electricity provider—not to be confused with a utility—began offering residential…

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Added by Home Energy Magazine on March 10, 2016 at 8:29pm — No Comments

Truly Reality TV: Finding the Right Time and Place for Home Energy Performance

Originally published on Feb. 22, 2016 on RMI Outlet.

By Douglas Miller (Rocky Mountain Institute) & Laura Reiter (Cineflix)…

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Added by Douglas Miller on February 22, 2016 at 11:00am — No Comments

Who among us tracks the accuracy of Manual J?

Who among us tracks the accuracy of Manual J?

I have hour meters on maybe 20 systems now.    I like to see the run time when it's "4" degrees in Kansas City.  99% rate in KC is +4' degrees.  My goal at 4' is 100% run time.   I have a super sealed home 2,100 square feet  with a 2 ton ground type heat pump R-30 walls, R-60 attic, R-8 windows & doors with 98% run time @ "+ 4' ".  When the strip heat turned on, it smelled up the home with the dirt  off the 5 KW strip, heat…

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Added by Eric Kjelshus on February 27, 2016 at 8:06pm — 4 Comments

Home Energy Efficiency, Meet Real Estate: A 2015 Year in Review and a Forecast for the Future

A lot is happening at the intersection of residential energy efficiency and real estate.

First, let us set the scene. Elevate Energy and others have long recognized a specific challenge: When homeowners invest in improving the energy efficiency of their home and property, these measures are often…

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Added by Melissa Ulbricht on February 25, 2016 at 10:05am — 1 Comment

Texas' Five-Star Butterfly and Hummingbird Retreat

[This blog is cross-posted from Home Energy Magazine.]

By Doug Garrett

When we built our new home 50 miles from Austin on 21+ acres we made the decision to have all of our indoor water come from harvested rainwater and to make our flower gardens bigger than they were at our first country…

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Added by Home Energy Magazine on February 16, 2016 at 10:30am — No Comments

Well-Built Dumb Home

Well-Built Dumb Home

  • One of the smartest things ever said about building a new home, was about something dumb:…

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Added by Chris Laumer-Giddens on February 17, 2016 at 5:45am — 3 Comments

Bonus room attic walls heat load

Hi Everyone...

First of all I am 59yr old retired Federal employee. I took HVAC in a trade school 30 years ago. While working a full time job, HVAC was basically side work for me. After a couple years of  residential installs and service work, I transferred into the building maintenance dept. HVAC was 75-80% of my job. We went to several onsite schools for a couple days here and there for the newest HCAV stuff. Keep in mind this is all commercial units we are working on in Federally…

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Added by Anthony Adams on February 12, 2016 at 11:15am — 4 Comments

Michigan Energy Auditor Certifications

Starting February 8, 2016, the Michigan Energy Code will adopt the 2015 edition of the International Energy Conservation Code (2015 IECC) with "amendments, deletions, and additions deemed necessary for use in Michigan." The state will be skipping the 2012 IECC, thereby increasing the energy efficiency requirements of its homes by 10-12%.

Michigan building code

What is the 2015 IECC?

State building codes exist to provide a standard set of guidelines for all builders,…

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Added by Everblue Training on January 28, 2016 at 9:58am — 2 Comments

Axial flow fans – An Overview

A fan is a mechanical device, which produces a stream or flow of air/gas. The fans are used both at residential and commercial spaces serving different purposes. These are often used to move air or gases via ventilating systems. In industries, these are used to force air inside the hot steam boilers and help to reduce the temperature of machines and other equipments. Fans function similar to the compressors, which is relatively at low pressures. These are basically divided as axial and…

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Added by miguel pace on January 20, 2016 at 5:30am — No Comments

Insulating a Slab-On-Grade in Hotlanta

Insulating a Slab-On-Grade in Hotlanta

Why in the world are we insulating a slab-on-grade in Hotlanta?

Reason #1: Atlanta is not, I repeat, NOT a cooling dominated climate. Wait...What?!?!?

Yes, it gets plenty hot here in the Summer, but it also gets downright cold. Which is why it's one of the more difficult climates to design and build in. We get both extremes.

I'm not saying we know what cold is, like all y'all do up yonder in them…

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Added by Chris Laumer-Giddens on February 1, 2016 at 4:03am — 9 Comments

The Compliance Project

Many of us have been working for decades to push the energy codes toward higher performance. We've had some good success along the way, as state after state adopt more stringent codes. Unfortunately, in many regions we have a long, long way to go. Even in those places where the most stringent codes are in place, execution and enforcement are often weak. And, as for going…

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Added by Chris Dorsi on February 11, 2016 at 12:14pm — 13 Comments

Using Stone and Wax for a Perfect Residential Building Enclosure

A Perfect Residential Building Enclosure

Buildings fail. It's a harsh reality, but they do, and for many different reasons. Two pretty common ways are by falling down, and by making the people in them sick. There is a long list of other reasons, but this post is focused on these two.

I am going to…

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Added by Chris Laumer-Giddens on January 19, 2016 at 2:30am — 2 Comments

High Performance Tiny House, an Experiment

High Performance Tiny House, an Experiment

In graduate school, I chose to focus on the work of Finnish architect, Alvar Aalto, during a study abroad trip. One of the buildings that stood out, was his …

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Added by Chris Laumer-Giddens on January 11, 2016 at 5:30am — No Comments

The Discreet Charm of Attics and Crawl Spaces

You would be professionally remiss if you did not read “Attics and Crawl Spaces” in this issue. The article by Terry Nordbye is a valuable reminder that home performance problems too often begin in the places that we least want to work on or inspect. Mold, dry rot, and despicable smells emanating…

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Added by Home Energy Magazine on January 7, 2016 at 3:30pm — No Comments

3 New Year's Resolutions Every Energy Rater Should Make in 2016

by Kim Tanner…

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Added by Kim Tanner on January 5, 2016 at 8:00am — No Comments

Home Performance Market Innovations and Solutions for 2016

How can data and partnerships grow both the market and the home performance businesses that will meet that demand? These were some of the top industry issues…

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Added by Tom White on January 4, 2016 at 12:30pm — 1 Comment

2015 Year in Review: Sharing a Look Back at the Past 12 Months

It’s a shiny new year, packed with all sorts of possibilities! Post-holiday our jobsites are bustling, as the Addison team gets back to work building healthy, high-performance new homes throughout Upstate South Carolina. We’ve so much to anticipate in 2016 … but first,…

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Added by Diane Jackson on January 4, 2016 at 12:00pm — No Comments

‘Upstate Under Construction’ Profiles Zero Energy Ready Home with Healthy Indoor Air

Addison Homes made the Winter edition of “Upstate Under Construction,” a GSA Business feature that spotlights development across the Upstate South Carolina region.

This brick-and-stone traditional…

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Added by Diane Jackson on December 16, 2015 at 3:03pm — No Comments

Energy Management System: Strategies and Benefits

Reducing and managing energy consumption saves money, and at the same time helps in checking climate change and strengthen corporate reputation. The main aim of an energy management system is to maintain optimum energy utilization throughout the organisation. This helps in lowering energy costs and mitigating the effects on the environment. In order to reduce power consumption, you can hire companies that provide energy management…

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Added by Alfie Davis on December 16, 2015 at 1:14am — 1 Comment

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