A system and method consisting of networked modular sensors and a data processing / display system to detect, process, manage and present both real-time and historic electrical energy usage data (metrics, statistics, etc), additionally allowing the intelligent management of energy usage through consumer education as well as both manual and automated usage controls.Wherein sensors are integrated into the standardized form-factor components typical of household and commercial electrical interfaces, such as circuit breakers, wall outlets, light switches, plug ends, power strips, etc, additionally allowing integration with appliances or other load devices and being capable of processing data;Wherein sensors and the associated processing, display and management systems are capable of communicating with each other.