Featured Blog Posts (467)

What if the light bulb produced more than light?

Talk about a light bulb moment.

A professor of engineering at Edinburgh University recently demonstrated for the first time to a wide audience his technology that uses common every day lights to transmit data.

Harald Haas streamed a video through a desk lamp at Ted Global 2011at Scotland’s Edinburgh International Conference Center in July.

If commercialized, the technology not only creates a vast new application for light, but also dramatically expands our now limited…

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Added by Elisa Wood on August 4, 2011 at 5:42pm — 1 Comment

9 Questions about Green Building Litigation

I published this Q&A with Chris Cheatham on daily5REMODEL this morning. Click here for the original article, along with comments. -- Leah Thayer

 

 

Chris Cheatham…

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Added by Leah Thayer on July 25, 2011 at 7:37am — 3 Comments

Waxing Nostalgic

The candle has been around the cave and the realm of weatherization and energy efficiency for some time now, but here’s an app which few have ever conceptualized.

 

In the early days of weatherization, before the thermagraph, even before the blower door, the trusty candle provided us several enlightening concepts. It would flicker when breezes brushed against its flame as a clear indicator of infiltration. Before the fancy schmancy digital manometers, a few old timers would…

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Added by Joseph Lamy on July 21, 2011 at 11:20am — 1 Comment

Greenitude, Chainsaws, and Everything Else



 This blog is cross-posted with Remodeling Magazine with the kind permission of the editor.

 

Let me recommend an excellent, well-written blog indeed.  Melissa Baldridge goes well beyond the nuts-and-bolts conversations in which we so often engage, and she presents ideas from a broader perspective.  At the point where remodeling meets building performance, the industry necessarily concerns…

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Added by Ed Voytovich on July 15, 2011 at 1:16pm — 3 Comments

Where to find jobs in energy efficiency

Here’s something you don’t hear people complain about much these days: worker shortages.  That is, unless you’re in energy efficiency, an industry that is booming as others are busting.

Sixty percent of those responding to a recent survey by the Association of Energy Services Professionals cited a lack of talented workers in energy efficiency.

“Energy efficiency is a rapidly growing segment of the overall energy industry and we…

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Added by Elisa Wood on July 14, 2011 at 6:30pm — 6 Comments

ASHRAE 90.2 Developments

*This post was drafted by Isaac Elnecave and Michael Hairston of the MEEA Policy Team

 

At the recently concluded ASHRAE Winter Meeting in Montreal, significant changes occurred to the development of the ASHRAE 90.2 standard (ASHRAE 90.2 is the companion standard to ASHRAE 90.1 and applies primarily to residential dwellings). Prior to the…

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Added by Andrew Navolio on July 14, 2011 at 12:00pm — No Comments

The Bumpy Road to Net Zero Energy

By Alan Meier



It’s easy to lose the longer perspective when we are involved in day-to-day efforts to save energy. That’s why I want to focus on a single home—Danny Parker’s house in Florida—to illustrate the bumpy road to zero energy use. The figure on the right shows 21 years of electricity use, along with many of the major events in Danny’s household. (Follow the green…

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Added by Home Energy Magazine on July 11, 2011 at 12:30pm — 16 Comments

Codes, Ignition Barriers, Foam Products, Manufacturer's Installation Specs

In the housing retrofit and energy upgrade world, we use lots of foam products, don't we?  Did you know that some products may not be used in certain areas of houses? Codes and product manufacturers specify what can be used where, and when an ignition or thermal barrier must be used to cover the product in order to meet codes and protect occupants in the event of a fire.  Read all about our research at www.PureEnergyCoach.com and click on Quality… Continue

Added by A. Tamasin Sterner on July 7, 2011 at 8:14am — 5 Comments

Google quits smart meters. Anyone care?

Who doesn’t pat themselves on the back when Google puts money into their industry? Ah, the giant likes this market. I must be on the right track!

So what does it mean now that Google has announced it will retire its Google PowerMeter because it didn’t catch on? Are all those companies who are investing in smart grid on the wrong track?

Clearly not. Google had star quality…

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Added by Elisa Wood on July 1, 2011 at 8:22am — 9 Comments

So Long, Frank Lloyd Wright

 

 

     Once a month or so Marie and I have dinner with a group of old friends, all of whom happen to be particularly interested in theater and other creative arts. The subject of architecture in general and Frank Lloyd Wright in particular popped up during one such recent gathering over Indian food.  Our friends burbled enthusiastically about their past visits to various Wright buildings and how beautiful they are. 

 

     I got into trouble when…

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Added by Ed Voytovich on June 11, 2011 at 2:00pm — 3 Comments

The Ductopus or the Centipede - Which HVAC Duct System Is Better?

I've been thinking lately that I might be in danger of losing all my friends in the HVAC business because I've been a bit heavy on showing examples of what they get wrong but not so good at showing what they do well. If you read my article… Continue

Added by Allison A. Bailes III on June 6, 2011 at 10:39am — 2 Comments

Preparing a Home for the Electric Car

henry ford model T electric cars adoption

Below is an article I wrote on the Mapawatt Blog.  I thought I would share it here on Home Energy Pros as well.  Are you preparing your home for an electric car?

As my electric Porsche…

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Added by Powell Smith on June 1, 2011 at 5:30am — 3 Comments

Looking forward to the day smart grid dies

The title of this blog might strike you as kind of weird, especially this week. After all, the Electric Power Research Institute made the news with a study showing that smart grid is going to be far bigger than we first thought.

Smart grid in simplest terms brings to the electrical grid the digital intelligence of computers and the Internet. Just seven years ago EPRI expected smartening the grid to cost $165 billion.  But its new…

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Added by Elisa Wood on May 27, 2011 at 8:03am — No Comments

Why the incandescent deserves its death

First off, there is no law actually calling for the death of the incandescent.  The Energy Independence and Security Act of 2007 actually states…

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Added by Chris Kaiser on May 25, 2011 at 7:07am — 14 Comments

The Ductless Mini-Split Heat Pump's Big Brother - CITY MULTI

In my last four HVAC Design jobs, I've specified ductless mini-split heat pumps. I have four more such jobs underway now.

Why mini-splits?

  • Efficiency (up to 26 SEER)
  • Variable Refrigerant…
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Added by Chris Laumer-Giddens on May 11, 2011 at 8:02am — 1 Comment

No Carts Before Horses - Design for Energy Efficiency Early

My recent visit to Savannah for the USGBC's green product expo charged up my historic preservation bug and got me to thinking about how to apply building science to historic buildings.

Most of us that have ever lived in, owned, or even just visited a historic home…

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Added by Chris Laumer-Giddens on May 4, 2011 at 4:30am — No Comments

What Tokyo Must Do



Few countries have been dealt such a tragic combination of natural and manmade disasters as Japan. The part of the disaster that I understand is the shortage of electricity. I wrote a book, Saving Electricity in a Hurry, in 2005 while working at the International Energy Agency.1 In the book, I explained the measures that a government must take in order to quickly reduce electricity demand while protecting…

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Added by Home Energy Magazine on May 1, 2011 at 4:30pm — No Comments

When you absolutely, positively NEED to get efficient overnight!

Every once in a while, we have an experience that completely crumbles some long-standing preconceived notion, and this week I’m pleased to share my revelation with you. I’ve just returned from a week-long trip to Cuba with a group of twenty other energy professionals sponsored by Solar Energy International andGlobal Exchange. The purpose of the trip was to explore…
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Added by Paul Scheckel on April 28, 2011 at 12:28pm — 6 Comments

Bringing Design/Build to Home Performance

I interviewed architect Chris Laumer-Giddens, of Energy Vanguard, on the company's new integrated design-build / home-performance model last week. I'm reposting the interview here, with Chris's permission. -- Leah Thayer, daily5Remodel…

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Added by Leah Thayer on April 28, 2011 at 8:00am — 3 Comments

Why I Love My Job

We all go through transitions in our lives.  One of the biggest is choosing or changing a profession.  As I mentioned in previous entries, my background for the previous 9 years was doing class action and warranty inspections on residential building products.  This meant I became keenly…

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Added by Jon LaMonte on April 21, 2011 at 6:47am — 7 Comments

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