1. A power usage prediction method comprising: retrieving, by a computer processor of a mobile computing system, first input data associated with a first user of a first plurality of power consumption devices at a first specified location; retrieving, by said computer processor, first power consumption data comprising a power consumption level for each power consumption device of said first plurality of power consumption devices; transmitting, by said computer processor to said first specified location, a first mobile usage portfolio associated said first user and said first plurality of power consumption devices; monitoring, by said computer processor, usage of plumbing fixtures at said first specified location; determining, by said computer processor based on results of said monitoring, a plumbing usage deviation value indicating that at least one plumbing fixture of said plumbing fixtures has not been used for a specified time period; generating, by said computer processor based on said first mobile usage portfolio, said plumbing usage deviation value, and said first power consumption data, a first load usage prediction report associated with said first user and said first plurality of power consumption devices; and transmitting, by said computer processor to a power provider utility for analysis, said first load usage prediction report.