Self-calibrating electricity meter

A method for self-calibrating an electricity meter, comprising steps of:

• generating power information representative of measured power using a measurement circuit within the meter;
• receiving into the meter reference standard information;
• comparing within the meter the power information to the reference standard information;
• generating within the meter a compensation signal in dependence upon the comparison;
• and
• generating within the meter subsequent power information using the compensation signal.

A system, comprising:

• a source of voltage and current signals;
• a reference standard measurement device for generating reference standard information in dependence upon the voltage and current signals;
• and
• a plurality of electricity meters, each of the meters including:
• a measurement circuit configured to generate power information in dependence upon the voltage and current signals;
• and
• a controller operably coupled to the measurement circuit and having an input for receiving the reference standard information, wherein the controller compares the power information generated by the measurement circuit to the reference standard information and generates a compensation signal in dependence upon the comparison and the compensation signal is used to calibrate the measurement circuit.