8 Popular Energy Efficiency Upgrades that DON’T Save Energy or Cash

We all love a good myth. “Goldfish have a memory of only three seconds”, “Water drains backwards in the Southern Hemisphere due to the Earth’s rotation”, or maybe “A dog’s mouth is cleaner than a human’s”.  It’s all fun stuff until we actually spend cash on things that we thought will do us good but end up to be a complete waste of money.  This may come us no surprise but some very commonly believed energy upgrades seem to be just that – myths.

Rob Moddy is a fellow USGBC member who often whips out a masterful blog entry.  It’s just so hard not to share this one with you.  Here he highlights a talk given by building scientist Michael Blasnik at the Department of Energy’s National Weatherization Training Conference, particularly the problems with inaccurate computer models in determining weatherization strategies and effective home energy improvement measures. 

As originally posted on GreenBuildingAdvisor.com, this is a list of common strategies for home weatherization that don’t save much energy. If you don’t want to waste your time and money, these are the strategies to avoid or closely evaluate: (more…)

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Green vs. Sustainable, Who Wins?

This is first net-zero carbon house in UK that reaches the highest level of sustainability. Dubbed the Lighthouse, the highly eco-friendly house was designed to “encourage a way of living that is inherently ‘light’ on the world’s resources whilst combining the practicalities of today’s average homeowner.

Almost all of us use the words green and sustainable interchangeably as if they have the same meaning.  But the more one delves deeper into the nuances, the more this funny little feeling starts creeping in that there seems to be some interesting differences there in these two noble concepts.  Why does it even matter?  Simply because by being able to separate the two we can make better decisions as consumers and become more mindful and equitable participants in our society.   

The product manufacturers, as well as building industry would certainly benefit by embracing “Sustainable” vs simply “Green” practices. Whereas green addresses mostly environmental elements, sustainable takes a more comprehensive view, including environmental, economic, social, and cultural elements. 

For example, a more sustainable and socially responsible approach to manufacturing would entail a fair and humane treatment of overseas workers, while the building community would certainly include a standard of quality well in excess of mere code compliance for “green” construction”. 

You see, building a house out of vastly renewable wood from a thousand miles away or engineered lumber, installing solar panels and solar water heater to satisfy the energy needs of the building would be enough to deem it “green”.  However, if the construction quality is poor and not much effort was invested into longevity of the structure (more…)

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Confessions of an Overzealous Green Building Advocate

Do you ever find yourself so deeply entrenched in your beliefs that you miss a bigger picture?  It’s safe to say we all do.  Recently, I had a chance to speak with a lovely lady who had purchased a fantastically green home.  The house had all the latest in green building like engineered lumber, sustainable materials, non-toxic finishes and many other bells and whistles.  You can imagine that my eyes sparkled like a five year old’s at a sight of an ice-cream truck.  Meeting her filled me with much excitement.  

My first questions obviously were:  “So how do you like it?  Does it feel good to have a low carbon footprint?  Don’t you just love your solar water heater?”  I was expecting to hear something profound like: ”Wow, we love the fact how much less wood was used to construct this house, how much stronger it is because of engineered lumber, how low the heating bills were,” you know…, the standard stuff that we greenies get jazzed up about.  But you know what her answer was? “It’s nice; we love the quality of the floors and are very comfortable here.”  

My jaw dropped.  “What?” uninvited but silent thoughts started creeping in, “She’s got to be kidding… this home should be like a Lincoln monument for green building and all she cares about is bamboo floors… For the sake of the planet, what’s wrong with her!?”  

Needless to say, this was puzzling as hell but on the way back home it dawned on me (more…)

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Secrets of Residential Solar Lease – Sweet Deal or Disastrous Rip-off?

A scam?  A rip-off? A deal of the century?  Ready or not folks, it’s here!  A solution that gives access to solar power even to the most cash strapped green minded suburbanites and….… it’s brought to you by the very people who delivered to us the sub-rime mortgage debacle.  It’s called a “residential solar lease” which is a “no money down” program that can get you electricity cheaper than what you cash out to PG&E on monthly basis.  Sounds familiar? 

The idea is simple; instead of buying your panels by dishing out thousands of dollars upfront you lease them for “one low monthly fee.”  You win, the solar company wins, environment is happy.   So what’s not to love?  How about a 15 year contract, a 3.9% increased payment every year and our Wall Street friends who have their fingers all over this sweet deal? 

On the surface, this sounds like a viable option for many home owners.  It solves an expensive problem of purchasing the panels outright for around 27,000 dollars (average 1,700 sq. foot home).  It works a bit like a car lease where home owners sign a deal that locks them in for 15 years with the option of extending their lease or buying the panels at the end of the contract.  With a solar lease, your monthly payments can be around $110 which, according to the service providers, will normally be around 15% less than your PG&E bill.  Are you sold yet?

After all, the way these companies and even our media like to paint it – it’s a no brainer deal.  SolarCity, which is based right here in our backyard of Silicon Valley, is one of the very well financed operations that is the first to start aggressively market this contract for home owners all over Bay Area and western states.  SunRun is another similar co. based in San Francisco.

Who really finances these deals?  (more…)

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