Green Motors. Review of Existing Deemed Savings Regional Technical Forum July 7 th , 2009. Background.
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Review of Existing Deemed Savings
Regional Technical Forum
July 7th, 2009
Table: Standard Rewind Efficiency Reductions
Original Source: MotorMaster+ Manual (p. 31: ≤40 hp = 1%; >40 hp = 0.5%)
Another Source: “The Effect of Repair/Rewinding on Motor Efficiency”, EASA/AEMT (p. 1-5: 6 motors in 100-150hp range rewound without controls lost 0.6% efficiency)
Source: “Achieving More with Less: Efficiency and Economics of Motor Decision Tools”, Advanced Energy. (Study of 100 motors showed average loading of 68.2%)
Source: United States Industrial Electric Motor Systems Market Opportunities Assessment, published by US Department of Energy December 1999, Motor Challenge, see Section 1, page 42
< 100 hp = 1800 hrs/year; ≥ 100 hp = 2000 hrs/year
Note: Preliminary estimated 6th Plan cutoff for cost-effectiveness is about 120 mils/kWh for lost-opportunity measures.