Many posts ago, I wrote “The More You Spend, The More You Save” explaining how poor system control wastes energy but results in even greater energy savings for efficient equipment. For example, consider an air handling system that wastes heating energy provided by an efficient boiler. The boiler saves x% versus a conventional model, so x% multiplied by greater use (wasted energy) results in “more” savings. Recently I picked up on buzz that argues greater efficiency results in greater energy consumption. At one point I recall reading in the Wall Street Journal an editorial that argued more efficient vehicles just…
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Last week these columns featured Wal-Mart and its silencing of critics via green and sustainable business practices. Are they really saving energy compared to their peers? Skylights, dimming fluorescent lights, and LED refrigerated case lights triggered by occupancy sensors – but what’s the totality? Lexus makes hybrid vehicles. One is a $110,000 sedan with a 5 liter V8 with fighter-jet horsepower weighing in at 20 miles per gallon. A Caterpillar earth mover may get that kind of highway mileage. The point is, a facility / organization can be green in name only. Note that in no way am I inferring…
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Studies have shown that LEED buildings are no more efficient and have no less of a “carbon footprint” than the average building of its peers. I remember reading an old guy’s rant in one of the 20 building engineering and architecture magazines I get. He was grousing that the reason is because there tends to be a lot more glazing and over-ventilation of LEED facilities, along with some other stuff I don’t remember. Apparently, the guy was a proponent of living and working in igloo coolers with no connection the outdoors, which is a big deal for me and everyone…
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