Patent US 4,253,151

An apparatus for monitoring and controlling the electrical power consumption of an electrical power consuming system, which apparatus measures and displays the rate and accumulated amount of total electrical consumption by the system, computes the average daily consumption, and signals when the average daily consumption exceeds a predetermined target as established by the consumer. Also, the apparatus generates an output indicative of peak integrated power consumption over a predetermined time period, and an indication of the precise time of occurrence thereof, to aid the consumer in his effort to isolate primary sources of power consumption. In addition, the apparatus of the invention computes the difference between the average daily consumption and the target daily consumption, which differences are displayed in order to provide a meaningful measure of the consumer's progress in controlling the amount of useage of the particular electrical power consuming system being monitored.