An electric energy meter, comprising: a plurality of first terminals for receiving a measure of current of each of one or more phases of power that is delivered to a load; a plurality of second terminals for receiving a measure of voltage of each of one or more phases of power that is delivered to the load; a controller operatively coupled to the plurality of first terminals and the plurality of second terminals, the controller configured to analyze the measure of current and the measure of voltage of each of the one or more phases of power that is delivered to the load to: determine a measure of accumulated power delivered to the load; and determine one or more power quality issues in one or more of the one or more phases of power that is delivered to the load; an accumulated power register operatively coupled to the controller for storing the measure of accumulated power delivered to the load; a plurality of power quality monitor registers operably coupled to the controller, the controller saving indications of each of a plurality of different power quality issues in a corresponding one of the plurality of power quality monitor registers, wherein the indications include a value or a set of values that represent the measure of accumulated power delivered to the load with the corresponding power quality issue; and a communication port operably coupled to the controller and configured to communicate with an external device, the controller configured to communicate the measure of accumulated power delivered to the load and communicate an indication of each of one or more of the plurality of different power quality issues via the communication port, characterised in that the controller is further configured to ascertain whether a particular power quality issue originated upstream of the electric energy meter or downstream of the electric energy meter, wherein the plurality of power quality monitor registers comprises a first set of power quality monitor registers that each correspond to the different power quality issue originating upstream of the electric energy meter, and a second set of power quality monitor registers that each correspond to the different power quality issue originating downstream of the electric energy meter. a plurality of first terminals for receiving a measure of current of each of one or more phases of power that is delivered to a load; a plurality of second terminals for receiving a measure of voltage of each of one or more phases of power that is delivered to the load; a controller operatively coupled to the plurality of first terminals and the plurality of second terminals, the controller configured to analyze the measure of current and the measure of voltage of each of the one or more phases of power that is delivered to the load to: determine a measure of accumulated power delivered to the load; and determine one or more power quality issues in one or more of the one or more phases of power that is delivered to the load; determine a measure of accumulated power delivered to the load; and determine one or more power quality issues in one or more of the one or more phases of power that is delivered to the load; an accumulated power register operatively coupled to the controller for storing the measure of accumulated power delivered to the load; a plurality of power quality monitor registers operably coupled to the controller, the controller saving indications of each of a plurality of different power quality issues in a corresponding one of the plurality of power quality monitor registers, wherein the indications include a value or a set of values that represent the measure of accumulated power delivered to the load with the corresponding power quality issue; and a communication port operably coupled to the controller and configured to communicate with an external device, the controller configured to communicate the measure of accumulated power delivered to the load and communicate an indication of each of one or more of the plurality of different power quality issues via the communication port, characterised in that the controller is further configured to ascertain whether a particular power quality issue originated upstream of the electric energy meter or downstream of the electric energy meter, wherein the plurality of power quality monitor registers comprises a first set of power quality monitor registers that each correspond to the different power quality issue originating upstream of the electric energy meter, and a second set of power quality monitor registers that each correspond to the different power quality issue originating downstream of the electric energy meter.