Energy usage monitoring with remote display and automatic detection of appliance including graphical user interface

A method of identifying an electrical device coupled to a power supply, and a state of the electrical device, comprising:

• receiving, by an energy monitoring device, a first plurality of values associated with a plurality of measured power supply parameters;
• receiving, by the energy monitoring device, a second plurality of values associated with the plurality of measured power supply parameters;
• detecting a change between the first value and the second value associated with at least one power supply parameter;
• computing a load signature for the electrical device based upon the first and second values associated with the plurality of measured power supply parameters;
• and
• looking up the load signature of the electrical device in a memory, wherein the load signatures stored in the memory are associated with an electrical device identifier and a state of the electrical device associated with the load signature,
• thereby identifying an electrical device coupled to a power supply, and a state of the electrical device.

A method of creating a database of load signatures for a plurality of electrical devices coupled to a power network having a plurality of states, the method comprising:

• measuring, by an energy monitoring device, a first plurality of values associated with a plurality of measured power supply parameters of an electrical device coupled to the power network, wherein the electrical device is in a first state;
• measuring, by the energy monitoring device, a second plurality of values associated with the plurality of measured power supply parameters;
• detecting a change of state of the electrical device from the first state to a second state utilizing the first and second plurality of values associated with the plurality of measured power supply parameters;
• computing a load signature from the first and second plurality of values associated with the plurality of measured power supply parameters;
• and
• storing a database record comprising the load signature, the second state, and an identifier for the electrical device,
• thereby creating a database of load signatures for a plurality of electrical devices having a plurality of states.