All Blog Posts (952)

The five disadvantages of solar power


It's intermittent. Solar energy is only available when the sun is shining.

It's low efficiency. It requires large areas of land.

It's not completely free of environmental impact. Ultrapure polysilicon is now scarce.


It's high cost.


You must climb your roof to wash it off. Just ask Ed Begley, Jr.!



Added by Tom DelConte on March 13, 2012 at 8:30am — 3 Comments

Three Steps to Get You Started on Do-it-Yourself Smart Home Automation.

Three Devices That Will Get You Closer to Saving Energy Through Smart Home Automation

by Don Ames,   www.detectenergy.com

I have been enjoying the advertisement on the radio that goes something like this, "If your home was built in the 1950's, why would you expect it to perform better than a T.V. built in the 1950's?"

The point is well taken if you are interested in energy conservation. Homes built in the 1950's do not perform…

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Added by Don Ames on March 10, 2012 at 8:15pm — No Comments

Trillion dollar answer to Bachmann's light bulb question

US Congresswoman Michele Bachmann often asks why government should tell us which kind of light bulb to choose. Turns out it’s a question with a trillion dollar answer.

 

We will save $1.1 trillion through 2035 because of existing energy efficiency mandates for light bulbs and appliances, according to a report issued this week by the American Council for an Energy-Efficient…

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Added by Elisa Wood on March 9, 2012 at 8:43am — No Comments

What leading edge developments should I be focusing on?

You woke up this morning full of vim and vigor, ready to tackle the world of home energy efficiency. Of course, your first dreamy thoughts were: is this major solar flare going to knockout electricity in the midwest power grid, and then, if Fermilab has found proof of the Higgs Boson, will I be able to fully explain the phenomena of convection and chimney effect to people? After your morning coffee, the reality check sets…

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Added by Tom DelConte on March 7, 2012 at 5:30am — 1 Comment

Energy Audit: Hot tubs and Shortcut Return Air Ducts

Energy Audit: Now Recommendations for Energy Saving Up-dates

by Don Ames,   www.detectenergy.com

Now that we have the hot tub and the hole-in-the-wall under control, it is time to go ahead…

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Added by Don Ames on March 6, 2012 at 1:33pm — 4 Comments

Yes, Virginia, you can save money on fuel!

It really wouldn't be fair not to share this timely report, which was aired in major cities last night:

http://philadelphia.cbslocal.com/2012/03/05/3-on-your-side-one-penny-home-heating-oil/

It describes a buying program which resembles other rewards programs. The website is called Neighbor Oil. They offer discounts on oil and propane, based on a points system.…

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Added by Tom DelConte on March 6, 2012 at 7:11am — No Comments

Will cyber-sensitives reveal the future of energy efficiency?

The US economy is three times larger than China’s, yet when it comes to developing a clean energy industry, China keeps besting us. The US came in second – again – to China this quarter in Ernst & Young’s much-watched …

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Added by Elisa Wood on March 2, 2012 at 8:18am — 2 Comments

How will people afford to heat their homes?

Fuel poverty, that is to say people who can't afford to heat their homes, is at all time high levels in the U.S., Canada, and the U.K. It causes at times a terrible human condition, death, which is estimated as 8,000 people per year in the U.K. There have been calls for immediate "super energy efficiency." No doubt the rest of the world is affected, also.

Heating oil prices in the U.S. are topping $4.11/gal(up), propane $2.90/gal(up), natural gas…

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Added by Tom DelConte on March 2, 2012 at 8:17am — 2 Comments

Home Energy Audit With a Hole in the Wall

Why is there a heating register 4 feet up on the wall?

by Don Ames,   www.detectenergy.com

In my last article, I spoke about a home energy audit and the hot tub on the back deck. Remember, it was a manufactured home with a great deck overlooking a roaring hillside stream. Next door, the neighbors were the countryside recyclers, at least I suppose that's what they might call themselves.

Personally, I think I would call them by a…

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Added by Don Ames on March 1, 2012 at 11:30pm — No Comments

Folk Labels and Home Energy

You’ve almost certainly seen them: a yellow Post-it on the thermostat or a brief note scribbled near the water heater controls, or perhaps a dog-eared card taped to the clothes washer. These are reminders to ourselves (or visitors) about how to operate the device. We call them “folk labels” so as to distinguish them from “official labels,” such as the EnergyGuide, UL, Energy Star, or other information provided by the manufacturer.…

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Added by Home Energy Magazine on March 1, 2012 at 3:38pm — 3 Comments

Accuweather's secret home energy efficiency function...

... shhh, don't tell ! I recently ran across this functionality on Accuweather, after doing a google search for something or other:

http://www.accuweather.com/en/us/new-york-ny/10007/home-energy-efficiency/349727

If you click on the about button, you essentially get a zero explanation. Monitoring it for several days, it seems to prioritize sunniness, then temperature, then who…

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Added by Tom DelConte on March 1, 2012 at 6:57am — 2 Comments

Metrolist, Colorado's 800-Pound Gorilla, Goes Green

On March 8, 2012, Metrolist, Denver’s real estate colossus, will finally unveil its “green-field addendum.”  And it’s been a long time coming, says Jamil Dillon.

 

Dillon would know because he helped hatch the idea.  He was the Residential Program Senior Associate at the Governor’s Energy Office (GEO) in 2010 when he and green home builder Sean Smith began conversations with some Colorado MLSes, including Metrolist, to provide “green” and energy-efficient home-listing info. …

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Added by Melissa Baldridge on February 28, 2012 at 4:30pm — 1 Comment

FTC Weighs In Regarding Energy Savings Claims by Window Companies

It looks like the time has come to pay the piper for over the top promises of savings from replacement windows. Last week the Federal Trade Commission settled with five window companies that have been making exagerated and unsubstantiated claims of energy savings regarding their products. According to Window & Door, "the cases are part of a broad FTC effort to ensure that environmental marketing is truthful and based on solid scientific evidence, government officials…

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Added by Adam Flowers on February 28, 2012 at 12:00pm — 7 Comments

Why people don't change their electrical supplier!

It's inexplicable as to why people are sluggish or fearful in regards to getting a better rate on their electric supply rate! 

Only 2% of people were thinking of changing their electricity or gas supplier, down from a third who were interested before the market was opened up statewide in 2006.

The study and recent survey also looked at how many people had already changed suppliers – just 2% for gas and 3% for electricity. You might almost call…

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Added by Tom DelConte on February 28, 2012 at 7:00am — 8 Comments

Net Zero the Easy Way!

http://nrglogicblog.com/?p=482

Added by Stephen Byers on February 24, 2012 at 1:33pm — No Comments

Building Science Funnies

Hair Salon   http://nrglogicblog.com/?p=490

Added by Stephen Byers on February 24, 2012 at 1:31pm — No Comments

Buil

http://nrglogicblog.com/?p=490

Added by Stephen Byers on February 24, 2012 at 1:31pm — No Comments

Building Science Funnies

Building Science Funnies - Duct Blasting  http://tinyurl.com/89wr9sh

Added by Stephen Byers on February 24, 2012 at 1:29pm — No Comments

Energy Efficiency: A way for colleges to save and make money?

The Obama administration – and every parent with a child in college – is concerned about the ever-escalating cost of higher education. And for good reason. Tuition, room and board rose 37 percent for undergraduates at public colleges and 25 percent at private colleges (adjusted for inflation) from 2000 to 2010, according to the …

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Added by Elisa Wood on February 24, 2012 at 10:11am — No Comments

Update - Illinois Home Performance Building Science Training Series: Infrared Technologies

Illinois Home Performance with ENERGY STAR (IHP) is currently sponsoring a building science training series. The most recent training took place in Normal, Illinois at Heartland Community College on Infrared technologies such as infrared cameras and images used to detect problem areas in buildings. Brian Kumer, owner of Thermal Imaging Services, was the instructor for this 8-hour course which consisted of both a classroom portion and a field portion.…

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Added by Andrew Navolio on February 24, 2012 at 8:36am — No Comments

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