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Posts Tagged ‘Energy’

2002 Alpine – Boulder, Colorado

June 10th, 2010 Timothy Barnett No comments

EcoLuxury homes are not new, particularly in a town such as Boulder, however this showcase home represents a leap forward in design and construction.

It starts with a 100-year perspective. Unlike most American homes that are designed to last only decades, every aspect of this house is built to 100-year standards.

Built through a partnership between Boulder-based Vireo LLC and WeberHaus GmbH & Co. KG, this home was manufactured in Germany to precise tolerances (1/2 inch over a 100-foot span) and then shipped to the U.S. Once it arrived on site, assembly took a matter of days as there was no additional fabrication required.

See video below for a time lapse:

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Are LED Bulbs Really More Efficient Than Their Incandescent Counterparts?

December 21st, 2009 Timothy Barnett No comments

LEDA standard incandescent bulb will use almost five times the energy of an LED bulb, a German study concludes.  On its face this hardly seems significant since it’s well known that an LED is about five times as efficient as an incandescent bulb from a use standpoint.  However this study, conducted by Osram, looks at energy efficiency from a life cycle standpoint.  This is important since it refutes the notion that the efficiency of LED bulbs is compromised by an energy intensive production process.  In fact, the study finds that the primary energy used in the manufacture in an LED is less than 2% of the total energy consumed over the life of the bulb.  Compelling stuff.  Even mainstream media such as the NYT has been quick to publish the results.

However a closer examination of the study is revealing.  While 2% may sound impressive and further the study highlights how the energy consumed in manufacture is actually less than that of an incandescent, it’s important to understand the assumptions.  While it may be true to say an LED is 35% more efficient to manufacture than an incandescent, this calculation is based upon a 25,000 hour versus a 1,000 hour expected life.  That a factor of 25.

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Has Peak Oil Come and Gone?

November 23rd, 2009 David McMillan No comments

Global energy is back in the spotlight, with good reason.  Next month in Copenhagen, the world’s leaders will meet to discuss steps that can be taken to limit climate change and work toward lower carbon emissions and a more sustainable energy future.

One of the biggest topics of conversation lately has centered around the notion of ‘peak oil’,  or the point at which worldwide production of oil could go into terminal decline;  by some estimates, this could be as early as 2020, according to UKERC, the UK energy research council.

The debate  is hotly contested, with experts on both sides weighing in with supporting data from the energy sector, scientists, and the latest figures from various government agencies.   In a recent NY Times article, ‘Peak Oil’ – is a waste of Energy,  Michael Lynch debunks the notion there is a crisis looming and largely attributes  speculation to people using poor analysis, as well as the mis-interpretation of technical materials.  The article outlines the arguments in a well-reasoned way, but goes on to say that the most misleading claim in the peak oil debate is the number of recoverable barrels of oil available.  He argues that the real number is closer to 10 trillion barrels vs the 2 trillion previously stated by peak oil advocates. Read more…

Waxman-Markey Climate and Energy Bill

October 28th, 2009 David McMillan No comments

You keep hearing about the Waxman-Markey climate and energy bill—aka the American Clean Energy and Security Act, ACES, H.R. 2454—but what’s actually in it?  Rather than publish the full 946 pages we thought we would provide a summary of the main points.

It’s a long post so you might just want to scroll to the headings that interest you the most.

Renewable electricity standard

The bill creates a renewable electricity standard (RES) that would require large utilities in each state to produce an increasing percentage of their electricity from renewable sources. Qualifying renewable sources are wind, solar, geothermal, biomass, marine and hydrokinetic energy, biogas and biofuels derived exclusively from eligible biomass, landfill gas, wastewater-treatment gas, coal-mine methane, hydropower projects built after 1992, and some waste-to-energy projects.

The RES:

  • Requires 6 percent of electricity to come from renewables by 2012
  • Requires 20 percent of electricity to come from renewables by 2020
  • Up to 5 percent can actually come from efficiency improvements
  • If a state determines that its utilities cannot meet the target, the efficiency component can be increased to 8 percent and the renewable component decreased to 12 percent

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Subaru’s Zero Waste Factory

September 13th, 2009 Timothy Barnett No comments

Auto factories normally conjure up images of smoke stacks and waste pipes spewing filth indiscriminately into their hapless surroundings. Subaru on the other hand has achieved “Zero Landfill” status with its Subaru of Indiana Automotive, Inc. plant. In fact, the manufacturing site itself is a natural wildlife refuge and this from a facility that can produce up to 200,000 vehicles per year.

Not surprisingly, Subaru has bandied its achievements in environmental stewardship in its advertising. Subaru cheerfully makes bold statements on its own website:SubaruAndTheEarth

“Here’s something to think about: next time you take out your trash at home for collection, you’re sending more trash to landfills than the entire Subaru manufacturing plant in Lafayette, Indiana (SIA) does in a year. The Subaru plant was the first auto assembly plant to achieve zero landfill status – nothing from its manufacturing efforts goes into a landfill. It’s all reused and recycled. Each year, SIA actively recycles 99.3% of excess/leftover steel, plastic, wood, paper, glass, and other materials. The remaining 0.7% is shipped to the city of Indianapolis and incinerated to help generate steam. In 2006, SIA recycled 11,411 tons of scrap steel, 1,537 tons of cardboard and paper, and 963 tons of wood. That’s equal to conserving 31,040 mature trees, 31,572 cubic yards of landfill space, 711,631 gallons of oil, and 10,759,000 gallons of water.

Now passionate environmentalists might argue that recognizing Subaru’s efforts are akin to congratulating the tobacco industry were it to produce a less poisonous cigarette.  After all, much of Subaru’s line up is composed of inefficient vehicles such as the Tribeca SUV.  Furthermore, Subaru’s positioning within the marketplace with its standard AWD is an efficiency trade-off as the extra weight, cost and complexity of an AWD drivetrain will always be at odds with good fuel economy.  And to make matters worse, while AWD does offer specific benefits, to tout it as a necessity, particularly for safety, is a consumer rip off right up there with high octane gas.

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Pepsi – Becoming a Model for Sustainability – Part 1

July 13th, 2009 David McMillan No comments

It is always with some hesitation that I look at large corporations to investigate  sustainability initiatives and programs they are implementing within their corporate cultures.  Green and Eco-marketing has now become such an essential part of a business plan that you are sure to lose out on some market share if you don’t have a green initiative in your operations.  Separating the green-washing from practices that are genuinely implemented by firms to truly benefit communities, employees, and the environment has always been a tricky task.  It traditionally takes a lot of effort, time and energy on behalf of the company to be able to break through the first wave of skepticism in order to get the message across.

One such firm that has taken noteworthy steps is PepsiCo.  One of the world’s largest food and beverage firms, with over $39 billion in revenues and employing over 185,000 people world wide, PepsiCo has the size to effect a substantial difference not only in how it runs its operations and manages its corporate responsibility, but also as a role model for other multi-national companies facing the challenge of changing their internal controls.

Here, in part 1 I will take a look at the environmental focus PepsiCo is taking with many of its initiatives; in Part 2 examine some of the social and community based projects the company is tackling. Read more…

From Autobahn to Velobahn

May 14th, 2009 Timothy Barnett No comments
Schritt Tempo: Walking Speed

Schritt Tempo: Walking Speed

Practically every community and housing development since WWII  has been designed around the automobile.  The post war dream of a car (or two) in every garage has been established as a sign of progress and prosperity.  So deeply ingrained is this notion,  most most U.S. cities have zoning laws  actually requiring that every residence be provided two parking spaces.

Today’s changing ideals beg the question, however: can “smart planning” separate suburbia from the SUV? Elisabeth Rosenthal wrote an interesting article in The New York Times recently about Vauban, Germany, where residents have largely given up their cars altogether.  Read more…

Changing Your Light Bulb Every 25 Years?

May 12th, 2009 Timothy Barnett No comments

Pharox BulbA number of lighting manufacturers have been scrambling to produce a cost effective LED light bulb for the broad market.  Now, Netherlands-based Lemnis Lighting, claims  its new 6-watt Pharox LED bulb is ready to take the spotlight on the lighting market.

At Caledonia, we’ve been interested in bright ideas like LED light bulbs for some time.  We first sampled some in 2008 and were impressed by the energy efficiency and the warm quality of the light, even as compared to compact flourescents (CFLs).  LED bulbs also enjoy a considerable environmental advantage over CFLs as they are mercury-free.  However,  with retail prices then over $100 per unit, the biggest obstacle has always been cost.  Although LED technology is nothing new, engineering a cost-efficient, “white light” LED in the form of a traditional incandescent light bulb is no easy task

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This Is Not Your Father’s Mobile Home

clayton_ihouse1

Clayton Homes‘ i-house officially went on sale Saturday. Not only is it much cheaper than traditional stick-built homes (starting at $100 a square foot), its eco footprint from manufacturing to energy consumption will set new standards in an industry not noted for  environmental stewardship.

Clayton Homes was acquired in 2003 by Berkshire Hathaway and Buffet himself wrote in this year’s letter to shareholders, “This innovative ‘green’ home, featuring solar panels and numerous other energy-saving products, is truly a home of the future.  Estimated costs for electricity and heating total only about $1 per day when the home is sited in an area like Omaha.” Read more…

Who Killed the Electric Car? Wally Rippel on GM’s EV1

GM’s EV1 was introduced in 1996 as the first modern production electric car.  These were available only through a 3-year lease program as part of an engineering evaluation.  In spite of an instantly devoted fan base comprised of those lucky drivers and enthusiasts, GM suddenly and controversially decided to discontinue the EV1, literally crushing the fleet.

This is a lengthy but intriguing, worthwhile video. Wally Rippel, key engineer in the development of GM’s EV-1 powertrain and, interestingly, currently employed by Tesla Motors, provides a provocative narrative starting at the 13 minute mark.  Rippel was also featured in the documentary film, “Who Killed the Electric Car?”.

At Caledonia, we’re not prone to conspiracy theories. However it’s hard to ignore this one!