Method and apparatus for effecting controlled restart of electrical servcie with a utility service area

A method for a control device to restart electrical service at a service point in a utility service area after a power stoppage, the control device being installed at the service point and controlling a supply of electrical power to at least one power consuming device located at the service point, the method comprising:

• estimating an amount of time required to complete a restart of electrical service in the utility service area;
• determining a start time for commencing the restart of electrical service in the utility service area;
• estimating a completion time for completing the restart of electrical service in the utility service area based on the estimated amount of time required to complete the restart of electrical service in the utility service area and the start time for commencing the restart of electrical service in the utility service area;
• generating a random number, wherein the random number is between zero and the estimated completion time;
• determining a random start time for restarting electrical service at the service point based on the random number and the start time for commencing the restart of electrical service in the utility service area;
• comparing the random start time to a current time of day;
• and
• restarting electrical service at the service point at the current time of day in the event that the random start time is no later than the current time of day.

A method for a central controller to restart electrical service at a plurality of service points in a utility service area after a power stoppage, the central controller being located remotely from the plurality of service points, each service point of the plurality of service points including a control device, each control device controlling a supply of electrical power to at least one power consuming device located at a corresponding service point, the method comprising:

• associating a number with at least one service point of the plurality of service points, wherein a quantity of the at least one service point is less than a quantity of the plurality of service points;
• generating a random number;
• comparing the random number to the number associated with the at least one service point;
• and
• communicating a restart message to at least one control device installed at the at least one service point in the event that the random number matches the number associated with the at least one service point and the at least one service point has not yet had electrical service restarted.

A method for restarting electrical service at a plurality of service points in a utility service area after a power stoppage, each service point of the plurality of service points including a control device of a plurality of control devices, each control device controlling a supply of electrical power to one or more power consuming devices located at a corresponding service point, the method comprising:

• selecting, by a central controller located remotely from the plurality of service points, a number within a predetermined set of numbers;
• transmitting, by the central controller, a control message to the plurality of control devices, the control message including the selected number;
• generating, by each control device of the plurality of control devices, a respective random number within the predetermined set of numbers;
• comparing, by each control device of the plurality of control devices, the selected number to the respectively generated random number;
• and
• supplying, by a particular control device of the plurality of control devices, electrical power to at least one power consuming device when the random number generated by the particular control device matches the selected number.

A method for a control device to restart electrical service at a service point in a utility service area after a power stoppage, the control device being installed at the service point and controlling a supply of electrical power to at least one power consuming device located at the service point, the method comprising:

• generating a random number within a predetermined set of numbers;
• receiving a control message from a central controller located remotely from the service point, the control message including a number within the predetermined set of numbers;
• comparing the number in the control message to the random number;
• and
• supplying electrical power to the at least one power consuming device when the random number matches the number in the control message.

A method for a central controller to restart electrical service at a plurality of service points in a utility service area after a power stoppage, the central controller being located remotely from the plurality of service points, each service point of the plurality of service points including a control device, each control device controlling a supply of electrical power to at least one power consuming device located at a corresponding service point, the method comprising:

• determining priorities of service for the plurality of service points based on respective customer profiles associated with the plurality of service points;
• determining a prioritized order for restarting electrical service to the plurality of service points based on the priorities of service;
• and
• transmitting a restart command to at least one control device in the event that a priority of service for at least one service point at which the at least one control device is installed matches a priority of service for which electrical service is being restarted according to the prioritized order.

A method for a central controller to restart electrical service at a plurality of service points in a utility service area after a power stoppage, the central controller being located remotely from the plurality of service points, each service point of the plurality of service points including a control device, each control device controlling a supply of electrical power to at least one power consuming device located at a corresponding service point, the method comprising:

• logically dividing the plurality of service points into a plurality of groups based on service point characteristics, wherein service points within a particular group share at least one common service point characteristic;
• determining a prioritized order for restarting electrical service to the plurality of service points based on service point characteristics;
• selecting a group of service points from the plurality of groups based on the prioritized order and at least one common service point characteristic for the group;
• and
• transmitting a restart command to a group of control devices installed at the selected group of service points.

A central controller for use in an active load management system that includes a plurality of client devices installed at a plurality of service points located in a service area of a utility, the plurality of service points being located remotely from the central controller, the central controller comprising:

• a database operable to associate a plurality of numbers with the plurality of service points;
• an event manager operably coupled to the database and operable to:
• determine whether electrical service can be restored to the plurality of service points after a power stoppage has occurred;
• generate a random number responsive to a determination that electrical service can be restored;
• compare the random number to each of the plurality of numbers;
• and
• generate a restart message when the random number matches a number of the plurality of numbers;
• and
• a client device manager operably coupled to the event manager and operable to transmit the restart message to at least one client device installed at one or more service points of the plurality of service points, the one or more service points being associated with the number that matched the random number.

A control device for use in an active load management system that includes a central controller located remotely from the control device, the control device being installed at a service point located in a service area of a utility and providing power control commands to one or more controllable devices which control a flow of electric power to one or more power consuming devices located at the service point, the control device comprising:

• a communications interface operable to receive control messages from the central controller;
• a processor operably coupled to the communications interface, the processor operable to:
• determine a time at which a control message is received, wherein the control message includes an estimated length of time for power to be restored to the utility service area;
• determine a restart completion time as the time at which the control message was received plus the estimated length of time for power to be restored to the utility service area;
• generate a random number as a unit of time;
• determine a random start time as the time at which the control message was received plus the random number;
• compare the random start time to a current time of day;
• and
• generate a power control command to initiate a restart of electrical service to the one or more power consuming devices when the random start time is no later than the current time of day;
• and
• at least one controllable device interface operably coupled to the processor, the at least one controllable device interface facilitating communication of the power control command to the one or more controllable devices so as to effectuate the restart of electrical service to the one or more power consuming devices.

An active load management system operable to controllably restart electrical service to a plurality of service points in a service area of an electrical utility after a power stoppage, the active load management system comprising:

• a central controller that includes:
• a database operable to associate a plurality of numbers with the plurality of service points;
• an event manager operably coupled to the database and operable to:
• determine whether electrical power can be restored to the plurality of service points after a power stoppage has occurred;
• generate a random number responsive to a determination that electrical power can be restored;
• compare the random number to each of the plurality of numbers;
• and
• generate a restart control message when the random number matches a number of the plurality of numbers;
• and
• a client device manager operably coupled to the event manager and operable to transmit the restart control message to at least one client device installed at one or more service points of the plurality of service points, the one or more service points being associated with the number that matched the random number;
• and
• a plurality of client devices located remotely from the central controller and installed at the plurality of service points, each client device including:
• a communications interface operable to receive control messages from the central controller;
• a processor operably coupled to the communications interface, the processor operable to generate a power control command responsive to receipt of a restart control message to initiate a restart of electrical service to a service point at which the client device is installed;
• and
• at least one controllable device interface operably coupled to the processor, the at least one controllable device interface facilitating communication of the power control command to one or more controllable devices at the service point so as to effectuate the restart of electrical service at the service point.