Patent US9881259 Energy Financial Settlements

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Patent US9881259

Issued 2018-01-30

System And Method For Estimating And Providing Dispatchable Operating Reserve Energy Capacity Through Use Of Active Load Management

An active load management system (ALMS) is utilized to supply operating reserve to a utility. According to one embodiment, the ALMS determines amounts of power stored in power storage devices located at service points within the utility's service area, and stores the stored power data in a repository. The ALMS also determines an amount of available operating reserve based on at least the stored power data. When the utility needs operating reserve, the ALMS receives a request for operating reserve from the utility. The ALMS then manages a flow of power from the power storage devices to a power grid accessible by the utility responsive to the utility's request, taking into account the amount of available operating reserve. Determination of stored power data may be aided by reports received from control devices located at the service points, where the reports indicate amounts of power stored by the power storage devices.

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3 Independent Claims

1. A method for supplying operating reserve to a utility servicing one or more service points, the method comprising: determining amounts of electric power stored by devices located at the one or more service points to produce stored power data; storing the stored power data in a repository: receiving communications from a first electric vehicle while the first electric vehicle is in motion and unconnected to a power grid indicating a location for the first electric vehicle and a current state of charge of the first electric vehicle; managing charging of a second electric vehicle at a selected one of the service points; determining an amount of available operating reserve based on at least the stored power data, stored energy available from the first electric vehicle, and projected energy savings resulting from a control event that interrupts the charging of the second electric vehicle by terminating the charging of the second electric vehicle prior to completion of the charging of the second electric vehicle at the selected service point; receiving a request for operating reserve from the utility; and responsive to the request for operating reserve, managing a flow of electric power from the devices to the power grid accessible by the utility, including sending a message to the selected service point to commence the control event and terminate the charging of the second electric vehicle prior to completion of the charging of the second electric vehicle at the selected service point.
8. A method for supplying operating reserve to a utility servicing a plurality of service points, the method comprising: determining, by a central controller, amounts of electric power stored by a plurality of devices located at the plurality of service points to produce stored power data, wherein one of the devices is a first electric vehicle located at a first service point; storing, by the central controller, the stored power data in a repository; managing, by the central controller, charging of a second electric vehicle at a second service point; determining, by the central controller, an amount of available operating reserve based on at least the stored power data and projected energy savings resulting from a control event that interrupts charging of the second electric vehicle at the second service point by terminating the charging of the second electric vehicle prior to completion of the charging of the second electric vehicle; receiving, by the central controller, a request for operating reserve from the utility; and responsive to the request for operating reserve, managing, by the central controller, a dispatch of electric power from the plurality of devices to a power grid accessible by the utility, including: sending a message to the first service point to dispatch electric power from the first electric vehicle, and sending a message to the second service point to terminate the charging of the second electric vehicle prior to completion of the charging of the second electric vehicle.
16. A system for supplying operating reserve to a utility servicing one or more service points, the system comprising: a repository; and at least one processor coupled to the repository, the at least one processor operable to: determine amounts of electric power stored by devices located at the one or more service points to produce stored power data; store the stored power data in the repository; receive communications from a first electric vehicle while the first electric vehicle is in motion and unconnected to a power grid indicating a location for the first electric vehicle and a current state of charge of the first electric vehicle; manage charging of a second electric vehicle at a selected one of the service points; determine an amount of available operating reserve based on at least the stored power data, stored energy available from the first electric vehicle, and projected energy savings resulting from a control event that interrupts charging of the second electric vehicle by terminating the charging of the second electric vehicle prior to completion of the charging of the second electric vehicle at the selected service point; receive a request for operating reserve from the utility; and responsive to the request for operating reserve, manage a flow of electric power from the devices to the power grid accessible by the utility, including sending a message to the selected service point to commence the control event and terminate the charging of the second electric vehicle prior to completion of the charging of the second electric vehicle at the selected service point.