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Advanced Energy Efficiency, Lecture 2: Industry - Rocky Mountain ...

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But adding 33 more kinds of<br />

improvements...<br />

◊ About doubles the savings<br />

◊ Cuts the cost of the saved energy by about<br />

fivefold (because paying for 7 measures<br />

yields 28 more as free byproducts)<br />

◊ This “tunnels through the cost barrier,”<br />

making very large savings (~50% between<br />

the retail meter and the input shaft of the<br />

driven machine) cost less than small savings<br />

◊ Probably conservative: in every USDOE Motor<br />

Challenge project analyzed*, ancillary system<br />

benefits (longer life, less wear & tear, lower<br />

capital and labor costs, etc.) were worth more<br />

than the energy savings normally counted<br />

*Pye & McKane, Procs. ACEEE Summer Study on <strong>Energy</strong> <strong>Efficiency</strong> in <strong>Industry</strong>, 1999, pp. 326–336

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