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When you buy new equipment, do you factor its energy efficiency into your total lifecycle costs? Varying efficiencies make drastic differences environmentally and cost a lot of money, while going un-noticed.
As an example, one manufacturer had a $10,000 100HP motor on their plant floor, designed for 94% efficiency.
If they were paying ~$0.10/kwh, that $10,000 motor should cost over $300,000 in energy over a five year life expectancy if running at 94% energy efficiency. The bad news was, we tested it, and that motor was running at <50% energy efficiency, costing them over $600,000/year to run that one motor, and they didn't know it.
So what happened? Continued here.
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