US Patent 9172275 Power monitoring and control system and method

A system includes a first controller carried by a first electrical outlet, and a management system in communication with the first controller through a first communication link. A second controller is carried by a second electrical outlet, and an electrical load operates in response to receiving power from the second electrical outlet. The management system determines a performance parameter of the electrical load in response to receiving information corresponding to the operation of the electrical load from the first controller.