Sources
Energy consumption estimates in this analysis are based on motor usage information from the NW Industrial Motor Database, as analyzed by the Green Motor Practices Group and Cascade Energy, and from Bonneville Power Administration research on agricultural pump motors. The efficiency degradation of a standard rewind is informed by a study on this topic sponsored by the Electrical Apparatus Service Association, Inc. and The Association of Electrical and Mechanical Trades in 2003. The current practice is estimated from the Northwest Energy Efficiency Alliance’s 2016 motor rewind market study.