US Patent 7356385 End-user electrical load controller

An end-user load controller that can be used in an electrical energy supply system for controlling electrical energy to an end-user load is disclosed. The controller periodically evaluates whether the load should be on or off based on comparisons of load-operating information and system emergency information to predetermined criteria which is provided to the controller from time to time. The load is switched on or off depending upon the load-operating information as compared to the predetermine criteria. Also, the load is switched off depending on the system emergency information as compared to the predetermined criteria, regardless of the load-operating information.