JP6915233B2 - Power management equipment, power systems, consumer equipment, power management methods and power management programs - Google Patents

Description

The present invention relates to power management devices, power systems, consumer devices, power management methods and power management programs, and in particular, power management devices, power systems, consumer devices, power management methods and power management devices used for trading surplus power. Regarding power management programs.

The number of electricity retailers is increasing due to the liberalization of electricity retailing due to the reform of the electricity system. A retailer purchases electric power from a power generation company at an electric power exchange and distributes the electric power supplied by the power generation company to electric power demand facilities of a plurality of consumers who have a contractual relationship with the power generation company.

In addition, the retailer can, for example, sell surplus electric power generated by the above-mentioned consumer saving electricity or generating electricity at an electric power exchange during a period when the supply and demand of electric power is tight.

On the other hand, consumers generally sell the generated power at the power exchange when the power generation scale of the power generation device is small, even when the power generation device is used to generate power at its own power demand facility. I can't.

Even in such a case, Patent Document 1 (Japanese Unexamined Patent Publication No. 2009-232605) provides a power supply and demand system for enabling the power generated by the power generation device owned by the consumer to be sold at the power exchange. , The following technologies are disclosed. That is, the power supply and demand system can procure power from its own power generation equipment and other businesses, can sell the power generated by the power generation equipment at the power exchange, and have a plurality of power consumers. At least one of the plurality of electric power consumers is a power generation capable power consumer having a power generation device, and the power generation possessed by the power generation possible power consumer. The power generated by the device is consumed only by the power generator capable of generating electricity, and the control device of the electric power company is said to have the smallest total cost required to supply power to the plurality of power consumers. The amount of power generated by the power generation device, the amount of power generated by the power generation facility, the amount of power procured from the other business operator, and the amount of power sold and sold at the power exchange are derived from the power generation consumer, and the power is generated. The output device of the business operator is the amount of power generated by the power generation device owned by the power generator capable of power generation by the control device, the amount of power generated by the power generation facility, the amount of power procured from the other business operator, and power. According to the result of deriving the amount of power sold and sold at the exchange, the power generation request to the power generation capable consumer, the power generation request to the power generation facility, the power transmission request to the other business operator, and the power generation to the power exchange. You can bid for buying and selling.

JP-A-2009-232605

By the way, in the transaction of electric power on the electric power exchange, the amount of electric power or the transaction unit defined by the electric power is defined, and the electric power exchange cannot buy or sell the amount of electric power less than the transaction unit.

For this reason, retailers may not be able to effectively utilize surplus power generated by power saving at power demand facilities.

Further, since the surplus power generated by power saving in the power demand facility is not stable, the power generation device provided in each power demand facility is indirectly controlled, for example, as in the technique described in Patent Document 1. Even if this is the case, it is difficult to use surplus electricity as a transaction unit, for example.

The present invention has been made to solve the above-mentioned problems, and an object thereof is a power management device, a power system, and a consumer who can effectively utilize surplus power to enhance the economic effect of power saving. To provide equipment, power management methods and power management programs.

(1) In order to solve the above problems, the electric power management device according to a certain aspect of the present invention is used by a business operator who can provide electric power to a business partner and receive compensation, and is provided with a power storage unit. It is a power management device used in the system, and includes a power information acquisition unit that acquires information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities that consume the power. In the electric power system, with respect to the surplus electric power obtained by subtracting the power consumption in each electric power demand facility from the supplied electric power, a part of the surplus electric power is stored in the electric storage unit or the remaining electric power charged in the electric storage unit. A part or all of the electric power and the surplus electric power are provided to the business partner, and further, based on the suppression amount information, the electric power to be provided to the business partner is stored in the power storage unit so as to be a predetermined transaction unit. It is provided with a control unit that performs adjustment control to adjust the remaining amount.

(7) In order to solve the above problems, the electric power system according to a certain aspect of the present invention is a power management device used by a business operator who can provide electric power to a business partner and receive compensation, and power consumption. The surplus power is obtained by subtracting the power consumption of each of the power demand facilities from the supplied power, which is provided with one or more consumer devices and a power storage unit, respectively, which are used in the one or more power demand facilities. A part of the remaining electric power charged in the power storage unit, or a part or all of the electric power stored in the power storage unit and the surplus electric power are provided to the business partner, and the consumer apparatus provides the electric power. The suppression amount information regarding the power consumption suppression amount in the demand facility is transmitted to the power management device, the power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, Adjustment control is performed to adjust the remaining amount of electricity stored in the electricity storage unit so that the electricity provided to the business partner becomes a predetermined transaction unit, and the consumer device shows the actual result of the amount of electricity consumption suppressed in the electricity demand facility. The suppression record information is transmitted to the power management device.

(8) Further, the electric power system according to another aspect of the present invention includes an electric power management device used by a business operator who can provide electric power to a business partner and receive compensation, and a power storage unit, and is provided from the supplied electric power. With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities that are the power consumption destinations, a part of the surplus power is the remaining power charged in the power storage unit, or the power stored in the power storage unit. A part or all of the above and the surplus electric power are provided to the business partner, and the electric power management device adjusts the remaining electric power of the power storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit. Performs adjustment control.

(9) In order to solve the above problems, the consumer device according to a certain aspect of the present invention is a consumer device used in a power system including a power storage unit, and in the power system, the power is changed from the supplied power to the power. With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities to be consumed, a part of the surplus power is the remaining power charged in the power storage unit or one of the power stored in the power storage unit. A request receiving unit that receives power saving request information from a power management device used by a business operator that is provided with the unit or all and the surplus electric power to the business partner and can provide the electric power to the business partner to receive compensation. When the power saving request information is received by the request receiving unit, the power management device includes a suppression information transmitting unit that transmits suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device. , The suppression amount information is received from the consumer device, and the remaining storage amount of the storage unit is adjusted based on the received suppression amount information so that the electric power provided to the business partner becomes a predetermined transaction unit. Perform adjustment control.

(10) In order to solve the above problems, the electric power management method according to a certain aspect of the present invention is used by a business operator who can provide electric power to a business partner and receive compensation, and is provided with a power storage unit. It is a power management method in the power management device used in the system, and includes a step of acquiring information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities to which the power is consumed. In the electric power system, with respect to the surplus electric power obtained by subtracting the power consumption in each electric power demand facility from the supplied electric power, a part of the surplus electric power is stored in the electric storage unit or the remaining electric power charged in the electric storage unit. A part or all of the power generated and the surplus power are provided to the business partner, and further, based on the suppression amount information, the power storage unit of the power storage unit so that the power provided to the business partner becomes a predetermined trading unit. Includes a step of performing adjustment control to adjust the remaining charge.

(11) Further, the electric power management method according to another aspect of the present invention includes an electric power management device used by a business operator who can provide electric power to a business partner and receive compensation, and one or a power consumption destination. It is a power management method in a power system including one or a plurality of consumer devices used in a plurality of power demand facilities and a power storage unit. With respect to the surplus power obtained by subtracting the above, a part of the surplus power is the remaining power charged in the power storage unit, or a part or all of the power stored in the power storage unit and the surplus power are provided to the business partner. Then, the consumer device transmits the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device, and the power management device receives the suppression amount information from the consumer device. Then, based on the received suppression amount information, the step of performing adjustment control for adjusting the remaining amount of electricity stored in the electricity storage unit so that the electric power provided to the customer becomes a predetermined transaction unit, and the consumer apparatus , Including a step of transmitting suppression performance information indicating the performance of the power consumption suppression amount in the power demand facility to the power management device.

(12) Further, the power management method according to another aspect of the present invention is a power management method in a consumer device used in a power system including a power storage unit, and in the power system, the power is consumed from the supplied power. With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities, a part of the surplus power is the remaining power charged in the power storage unit, or a part of the power stored in the power storage unit or A step of receiving power saving request information from a power management device used by a business operator in which all of the power is provided to the business partner and the power can be provided to the business partner to obtain compensation, and the power saving request. After receiving the information, the power management device includes the step of transmitting the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device, and the power management device receives the suppression amount information from the consumer device. Then, based on the received suppression amount information, adjustment control is performed to adjust the remaining amount of electric power stored in the power storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit.

(13) In order to solve the above problems, the electric power management program according to a certain aspect of the present invention is used by a business operator who can provide electric power to a business partner and receive compensation, and is provided with a power storage unit. It is a power management program used in the power management device used in the system, and provides the computer with information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities to which the power is consumed. It is a program for executing the acquisition step, and in the power system, a part of the surplus power is charged to the power storage unit with respect to the surplus power obtained by subtracting the power consumption in each power demand facility from the supply power. The remaining electric power, or a part or all of the electric power stored in the power storage unit, and the surplus electric power are provided to the business partner, and further provided to the business partner based on the suppression amount information. This is a program for executing a step of performing adjustment control for adjusting the remaining amount of electricity stored in the electricity storage unit so that the electric power to be generated becomes a predetermined transaction unit.

(14) Further, the electric power management program according to another aspect of the present invention is a electric power management program used in a consumer device used in an electric power system including a power storage unit, and in the electric power system, the electric power is changed from the supplied electric power. With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities that are the consumption destinations of the above, a part of the surplus power is the remaining power charged in the power storage unit, or the power stored in the power storage unit. Part or all of the surplus power is provided to the business partner, and the computer receives power saving request information from a power management device used by a business operator who can provide the business partner with power and receive compensation. It is a program for executing a step and a step of transmitting the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device after receiving the power saving request information, and the power management device is a program for executing the step. The suppression amount information is received from the consumer device, and the remaining amount of electricity stored in the power storage unit is adjusted based on the received suppression amount information so that the electric power provided to the business partner becomes a predetermined transaction unit. Performs adjustment control.

The present invention can be realized not only as a power management device provided with such a characteristic processing unit, but also as a semiconductor integrated circuit that realizes a part or all of the power management device.

According to the present invention, the surplus electric power can be effectively utilized to enhance the economic effect of power saving.

FIG. 1 is a diagram for explaining an outline of an electric power system according to an embodiment of the present invention. FIG. 2 is a diagram for explaining an example of the supply and demand relationship of electric power before the start of the power saving period in the electric power system according to the embodiment of the present invention. FIG. 3 is a diagram for explaining an example of the supply and demand relationship of electric power during the power saving period in the comparative example of the electric power system according to the embodiment of the present invention. FIG. 4 is a diagram for explaining another example of the supply and demand relationship of electric power during the power saving period in the comparative example of the electric power system according to the embodiment of the present invention. FIG. 5 is a diagram for explaining an example of the supply and demand relationship of electric power during the power saving period in the electric power system according to the embodiment of the present invention. FIG. 6 is a diagram for explaining another example of the supply and demand relationship of electric power during the power saving period in the electric power system according to the embodiment of the present invention. FIG. 7 is a diagram showing a configuration of an electric power system according to an embodiment of the present invention. FIG. 8 is a diagram showing a configuration of a power management device according to an embodiment of the present invention. FIG. 9 is a flowchart defining a procedure for creating a plan for adjustment control by the power management device according to the embodiment of the present invention. FIG. 10 is a diagram for explaining an example of the relationship between each timing in the electric power system according to the embodiment of the present invention. FIG. 11 is a diagram showing a configuration of a consumer device according to an embodiment of the present invention. FIG. 12 is a diagram showing an example of a sequence of power management processing in the power system according to the embodiment of the present invention.

First, the contents of the embodiments of the present invention will be listed and described.

(1) The electric power management device according to the embodiment of the present invention is a power management device used by a business operator who can provide electric power to a business partner and receive compensation, and is used in an electric power system including a power storage unit. It is provided with a power information acquisition unit that acquires information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities that are the destinations of power consumption, and in the power system, the supply With respect to the surplus power obtained by subtracting the power consumption of each power demand facility from the power, a part of the surplus power is the remaining power charged in the power storage unit, or a part or all of the power stored in the power storage unit. Adjustment control that adjusts the remaining amount of electricity stored in the power storage unit so that the surplus electricity is provided to the business partner and the power provided to the business partner becomes a predetermined transaction unit based on the suppression amount information. It is provided with a control unit for performing the above.

With this configuration, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(2) Preferably, in the power system, power is provided to the business partner during the power saving period, and the control unit performs the adjustment control before the start timing of the power saving period.

With such a configuration, a period for supplying electric power to a business partner when it is determined that a part of surplus electric power needs to be charged to the power storage unit in order to make the electric power provided to the business partner a predetermined transaction unit. By the start of the power saving period, the remaining amount of electricity stored in the electricity storage unit can be reduced to secure the required free capacity. On the other hand, when it is determined that it is necessary to combine the surplus power and the power in the power storage unit in order to make the power provided to the business partner a predetermined transaction unit, the remaining power storage in the power storage unit is reduced by the start of the power saving period. It can be raised to secure the required amount of power.

(3) More preferably, the control unit determines whether to charge or discharge the power storage unit in the adjustment control according to the length of the time until the start timing of the power saving period.

With such a configuration, for example, when it is determined that the required amount of power can be charged by the start of the power saving period, adjustment control for charging the power storage unit is performed, and the required amount of power is saved. When it is determined that the battery cannot be charged by the start of the period, on the contrary, adjustment control for discharging the power storage unit can be performed in order to secure the free capacity of the power storage unit.

(4) Preferably, the control unit adjusts the remaining amount of electricity stored in the adjustment control so that the remaining amount of electricity stored in the electricity storage unit becomes a predetermined value or more in a state where the electric power is provided to the business partner.

With such a configuration, for example, the amount of surplus power predicted based on the suppression information could not be obtained, so that the remaining amount of power stored in the power storage unit becomes zero while supplying power to the business partner during the power saving period. In order to prevent this from happening, it is possible to charge a large amount of the power storage unit by the start of the power saving period to allow a margin for the remaining power storage.

(5) Preferably, the power management device further includes a consideration information acquisition unit that acquires consideration information indicating the consideration given by the business partner for the provided electric power, and the consideration indicated by the consideration information and the suppression thereof. It is provided with a consideration calculation unit for calculating the consideration to be given to the consumer of each electric power demand facility based on the quantity information.

With such a configuration, the consumer can receive a consideration based on the surplus power, so that the consumer can be given an incentive to save power during the power saving period, and more surplus power can be generated.

(6) Preferably, in the power system, power is provided to the business partner during the power saving period, and the power information acquisition unit indicates the power consumption suppression amount reported from the power demand facility during the power saving period. The suppression record information is acquired, and the control unit adjusts the power provided to the business partner by controlling the charging or discharging of the power storage unit based on the suppression record information during the power saving period.

With such a configuration, for example, the charge amount or the discharge amount of the power storage unit can be adjusted so that the electric power provided to the business partner becomes a transaction unit. Further, for example, it is possible to provide a business partner with stable electric power with little fluctuation.

(7) The electric power system according to the embodiment of the present invention includes an electric power management device used by a business operator who can provide electric power to a business partner and receive compensation, and one or a plurality of electric power consumption destinations. With respect to the surplus power obtained by subtracting the power consumption in each power demand facility from the supplied power, which is provided with one or more consumer devices used in the power demand facility and a power storage unit, a part of the surplus power is the power storage unit. The remaining electric power charged in the power storage unit, or a part or all of the electric power stored in the power storage unit and the surplus electric power are provided to the business partner.
The consumer device transmits information on the amount of power consumption restraint in the power demand facility to the power management device.
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit of the power storage unit so that the power provided to the business partner becomes a predetermined transaction unit. Performs adjustment control to adjust the remaining amount of electricity,
The consumer device transmits the suppression record information indicating the actual power consumption suppression amount in the power demand facility to the power management device.

With this configuration, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(8) The electric power system according to the embodiment of the present invention includes an electric power management device used by a business operator who can provide electric power to a business partner and receive compensation, and a power storage unit, and electric power is supplied from the supplied electric power. With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities that are the consumption destinations of the above, a part of the surplus power is the remaining power charged in the power storage unit, or the power stored in the power storage unit. A part or all of the surplus electric power is provided to the business partner, and the power management device adjusts the remaining electric power of the power storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit. Take control.

With this configuration, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(9) The consumer device according to the embodiment of the present invention is a consumer device used in a power system including a power storage unit, and in the power system, one or a plurality of power sources are consumed from the supplied power. With respect to the surplus power obtained by subtracting the power consumption of the power demand facility of the above, a part of the surplus power is the remaining power charged in the power storage unit, or a part or all of the power stored in the power storage unit and the surplus power. Is provided to the business partner, and the request receiving unit that receives the power saving request information from the power management device used by the business operator that can provide the business partner with the electric power and obtain the compensation, and the request receiving unit. When the power saving request information is received, the power management device includes a suppression information transmission unit that transmits the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device. The suppression amount information is received, and based on the received suppression amount information, adjustment control is performed to adjust the remaining storage amount of the power storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit.

With this configuration, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(10) The electric power management method according to the embodiment of the present invention is a power management device used by a business operator who can provide electric power to a business partner and receive compensation, and is used in an electric power system including a power storage unit. In the power system, the method includes the step of acquiring information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities to which the power is consumed. With respect to the surplus power obtained by subtracting the power consumption of each power demand facility from the supplied power, a part of the surplus power is the remaining power charged in the power storage unit, or a part or all of the power stored in the power storage unit. And the surplus electric power are provided to the business partner, and further, based on the suppression amount information, adjustment is made to adjust the remaining electric power of the power storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit. Includes steps to control.

By this method, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(11) The electric power management method according to the embodiment of the present invention includes an electric power management device used by a business operator who can provide electric power to a business partner and receive compensation, and one or more electric power consumption destinations. It is a power management method in a power system including one or more consumer devices and a power storage unit, which are used in the power demand facilities of the above, and in the power system, the power consumption in each power demand facility is calculated from the supplied power. With respect to the deducted surplus power, a part of the surplus power is the remaining power charged in the power storage unit, or a part or all of the power stored in the power storage unit and the surplus power are provided to the business partner. The step of transmitting the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device, and the power management device receiving the suppression amount information from the consumer device. Based on the received suppression amount information, the step of performing adjustment control for adjusting the remaining amount of electricity stored in the electricity storage unit so that the electric power provided to the customer becomes a predetermined transaction unit, and the consumer apparatus The step includes a step of transmitting suppression performance information indicating the performance of the power consumption suppression amount in the power demand facility to the power management device.

By this method, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(12) The electric power management method according to the embodiment of the present invention is a electric power management method in a consumer device used in an electric power system including a power storage unit, and in the electric power system, the power is supplied from the supplied electric power to the electric power consumption destination. With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities, a part of the surplus power is the remaining power charged in the power storage unit, or a part or all of the power stored in the power storage unit. And the surplus electric power are provided to the business partner, and the step of receiving the power saving request information from the power management device used by the business operator who can provide the electric power to the business partner and obtain the consideration, and the power saving request information. The power management device includes the step of transmitting the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device, and the power management device receives the suppression amount information from the consumer device. Based on the received suppression amount information, adjustment control is performed to adjust the remaining amount of electric power stored in the power storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit.

By this method, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(13) The electric power management program according to the embodiment of the present invention is an electric power management device used by a business operator who can provide electric power to a business partner and receive compensation, and is used in an electric power system provided with a power storage unit. In order to cause a computer to perform a step of acquiring information on power supply and suppression amount information on power consumption suppression amount in one or more power demand facilities to which power is consumed, which is a power management program used in. In the power system, the surplus power obtained by subtracting the power consumption in each power demand facility from the supply power is the remaining power in which a part of the surplus power is charged in the power storage unit, or the power storage unit. A part or all of the electric power stored in the power storage unit and the surplus electric power are provided to the business partner, and further, the electric power to be provided to the business partner based on the suppression amount information is a predetermined transaction unit. This is a program for executing a step of performing adjustment control for adjusting the remaining amount of electricity stored in the electricity storage unit so as to become.

With this configuration, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

(14) The electric power management program according to the embodiment of the present invention is a electric power management program used in a consumer device used in an electric power system including a power storage unit, and in the electric power system, the power is changed from the supplied electric power to the electric power. With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities to be consumed, a part of the surplus power is the remaining power charged in the power storage unit or one of the power stored in the power storage unit. A step of receiving power saving request information from a power management device used by a business operator whose part or all and the surplus power are provided to the business partner and who can provide the power to the business partner and receive compensation. And, after receiving the power saving request information, it is a program for executing the step of transmitting the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device, and the power management device is said to be said. Adjustment that receives the suppression amount information from the consumer device and adjusts the remaining storage amount of the power storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit based on the received suppression amount information. Take control.

With this configuration, for example, of the excess power in the power demand facility provides a power that meets the transaction units suppliers, can be charged remaining power in the power storage unit. As a result, it is possible to receive consideration for the provided electric power from the business partner, and to charge and hold the electric power that is not the target of the transaction in the power storage unit, and then supply it to, for example, an electric power demand facility as needed. , Surplus power can be utilized without waste. Also provided, for example, if the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction units, the partner even a small amount of surplus power You can receive compensation for the power provided from your business partner. Therefore, the surplus power can be effectively utilized to enhance the economic effect of power saving.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated. In addition, at least a part of the embodiments described below may be arbitrarily combined.

[Configuration and basic operation]
FIG. 1 is a diagram for explaining an outline of an electric power system according to an embodiment of the present invention.

With reference to FIG. 1, the power generation company 10 which is a power generation company such as an electric power company can sell the electric power generated by itself at the electric power exchange 20.

The retailer (business operator) 30 receives power from the power generation company 10 by purchasing power from the power generation company 10 at the power exchange 20. The retailer 30 purchases, for example, the electric power supplied the next day from the power generation company 10.

The retailer 30 uses the electric power supplied from the power generation operator 10 as the electric power demand facility of a plurality of consumers 50 having a contractual relationship with the power generation company 10, specifically, the electric power consumption destination shown in FIG. 7 to be described later. It is distributed to a plurality of electric power demand facilities 52.

The consumer 50 is an organization or an individual such as a company, and uses, for example, the electric power received from the retailer 30 to operate the equipment in its own electric power demand facility 52.

The transaction participant 70 is a business operator capable of purchasing electric power at the electric power exchange 20, and is an organization or an individual such as a company.

The transfer of electric power between operators is performed using an electric power system (not shown).

Here, the retailer 30 designates, for example, a period for which power saving should be performed (hereinafter, also referred to as a power saving period) when it is predicted that the power price will rise due to a tight supply and demand of power in a certain period. Then, each customer 50 is requested to save power.

When the consumer 50 receives a power saving request from the retailer 30, the consumer 50 suppresses the consumption of the electric power supplied from the retailer 30 during the power saving period.

The retailer 30 may be able to provide the business partner with surplus electric power which is the electric power supplied to the retailer 30 minus the electric power consumed by the electric power demand facility 52.

Specifically, the retailer 30 predicts the surplus power generated in the power saving period in advance, and the predicted surplus power, that is, the surplus power expected to be generated in the power saving period, is used as the power that can be provided in the power saving period on the power exchange. Sold at 20.

Then, for example, when the trading participant 70 purchases surplus power from the retail business operator 30, the retail business operator 30 provides the trading participant 70 with the surplus power generated during the power saving period.

The retailer 30 can obtain the electric power provided by supplying electric power to the trading participant 70 who is a business partner. Specifically, for example, the transaction participant 70 pays the retailer 30 the consideration for the provided electric power, that is, the purchase price of the electric power.

The retailer 30 gives the consumer 50 who has saved electricity the price for saving electricity. Specifically, for example, the retailer 30 allocates the consideration for the provided electric power given by the transaction participant 70 to the consumer 50 as the consideration for saving electricity.

The consideration for the electric power provided by the transaction participant 70 to the retailer 30 and the consideration for saving electricity given to the consumer 50 by the retailer 30 are not limited to money, but may be gift certificates or coupons.

Here, in the transaction of electric power on the electric power exchange, a transaction unit defined by the amount of electric power is defined. Therefore, the electric power exchange can buy and sell an amount of electric power that is an integral multiple of the transaction unit, but cannot buy and sell an amount of electric power that is less than the transaction unit.

For example, if the amount of surplus power, that is, the amount of surplus power is less than the transaction unit, the retailer 30 cannot sell the surplus power on the power exchange 20.

The amount of surplus electric power is the electric energy obtained by integrating the surplus electric power with time. Hereinafter, the transaction unit on the electric power exchange 20 will be described as 1000 kWh.

FIG. 2 is a diagram for explaining an example of the supply and demand relationship of electric power before the start of the power saving period in the electric power system according to the embodiment of the present invention.

With reference to FIG. 2, the power generation company 10 supplies 2000 kWh of electric power to the retail company 30 according to the contents of the transaction concluded in advance with the retail company 30.

The retailer 30 supplies the customer 50 with 2000 kWh of electric power received from the power generation company 10.

[Power supply and demand during the power saving period]
(About Comparative Example of Embodiment of This Invention)
FIG. 3 is a diagram for explaining an example of the supply and demand relationship of electric power during the power saving period in the comparative example of the electric power system according to the embodiment of the present invention.

FIG. 3 shows the supply and demand of electric power when a consumer 50 who normally consumes 2000 kWh of electric power receives a power saving request from a retailer 30 and saves 1200 kWh, that is, suppresses power consumption. ..

With reference to FIG. 3, the power generation company 10 supplies 2000 kWh of electric power to the retail company 30.

The consumer 50 normally consumes 2000 kWh of electric power, but here, by saving power, the consumer 50 consumes 800 kWh of electric power.

Therefore, the retailer 30 supplies the consumer 50 with 800 kWh of electric power consumed by the consumer 50 out of the 2000 kWh of electric power received from the power generation company 10.

The retailer 30 provides the trading participant 70 with 1000 kWh of electric power that satisfies the trading unit on the financial exchange 20 out of the surplus 1200 kWh of electric power that is not supplied to the consumer 50.

Here, the amount of electric power provided by the retailer 30 to the trading participant 70 is the amount of electric power sold in advance by the retailer 30 to the trading participant 70 at the electric power exchange 20.

On the other hand, the retailer 30 calculates the electric energy obtained by subtracting the electric energy provided to the trading participant 70 from the surplus electric energy of 1200 kWh, that is, the electric energy of 200 kWh which is less than the transaction unit on the financial exchange 20. Hand over to.

Specifically, for example, according to the agreement on the stable supply of electric power, the electric energy of 200 kWh, which corresponds to 3% of the electric energy supplied from the power generation company 10, that is, the electric energy of 60 kWh, which corresponds to 3% of the electric energy of 2000 kWh. The quantity is taken over by the electric power company 80 for a fee. However, of the 200kWh electric energy, the remaining 140kW electric energy is taken over by the electric power company 80 free of charge.

FIG. 4 is a diagram for explaining another example of the supply and demand relationship of electric power during the power saving period in the comparative example of the electric power system according to the embodiment of the present invention.

FIG. 4 shows the supply and demand of electric power when a consumer 50 who normally consumes 2000 kWh of electric power receives a power saving request from a retailer 30 and saves 800 kWh of electric power.

With reference to FIG. 4, the power generation company 10 supplies 2000 kWh of electric power to the retail company 30. The consumer 50 normally consumes 2000 kWh of electric power, but here, by saving power, the consumer 50 consumes 1200 kWh of electric power.

Therefore, the retailer 30 supplies the consumer 50 with 1200 kWh of electric power consumed by the consumer 50 out of the 2000 kWh of electric power received from the power generation company 10. Therefore, the remaining 800 kWh of electric power becomes a surplus.

Since the surplus electric energy of 800 kWh is less than the transaction unit on the electric power exchange 20, it cannot be provided to the transaction participant 70.

Here, the retailer 30 delivers the surplus 800 kWh of electric power to the electric power company 80 in accordance with the agreement on the stable supply of electric power. Specifically, for example, out of the electric energy of 800 kWh, the electric energy of 60 kWh, which is 3% of the electric energy of 2000 kWh, which is the electric energy supplied from the power generation company 10, is purchased by the electric power company 80. On the other hand, of the 800 kWh of electric power, the remaining 740 kW of electric power is taken over by the electric power company 80 free of charge.

As described above, in the comparative example of the electric power system according to the embodiment of the present invention, the amount of surplus electric power that is less than the transaction unit at the electric power exchange 20 is delivered to the electric power company 80 at a low cost. Surplus power cannot be used effectively.

Therefore, in the electric power system according to the embodiment of the present invention, such a problem is solved by the following method.

(About the Embodiment of this invention)
FIG. 5 is a diagram for explaining an example of the supply and demand relationship of electric power during the power saving period in the electric power system according to the embodiment of the present invention.

Similar to FIG. 3, FIG. 5 shows the supply and demand of electric power when a consumer 50 who normally consumes 2000 kWh of electric power saves 1200 kWh in response to a power saving request from a retailer 30. In the electric power system 101, the retailer 30 has installed a power storage unit 31 in his / her own facility, for example.

Here, a part of the surplus electric power is charged to the power storage unit 31, and the remaining electric power is provided to the transaction participant 70.

Specifically, for example, referring to FIG. 5, the power generation company 10 supplies 2000 kWh of electric power to the retail company 30. The consumer 50 normally consumes 2000 kWh of electric power, but here, by saving power, the consumer 50 consumes 800 kWh of electric power.

Therefore, the retailer 30 supplies the consumer 50 with 800 kWh of electric power consumed by the consumer 50 out of the 2000 kWh of electric power received from the power generation company 10. Therefore, the remaining 1200 kWh of electric power becomes a surplus.

The retailer 30 provides the trading participant 70 with 1000 kWh of electric power that satisfies the trading unit on the financial exchange 20 out of the surplus 1200 kWh of electric power. The amount of electric power provided by the retailer 30 to the trading participant 70 is the amount of electric power previously sold by the retailer 30 to the trading participant 70 at the electric power exchange 20.

On the other hand, the retailer 30 charges the power storage unit 31 with a power amount of 200 kWh, which is a power amount obtained by subtracting the power amount provided to the transaction participant 70 from the surplus power amount of 1200 kWh.

That is, the retailer 30 does not deliver the surplus electric power amount that is less than the transaction unit to the electric power company 80, but charges the power storage unit 31.

As a result, the retailer 30 can use the electric power charged in the power storage unit 31 as needed, so that the surplus electric power can be effectively used.

FIG. 6 is a diagram for explaining another example of the supply and demand relationship of electric power during the power saving period in the electric power system according to the embodiment of the present invention.

Similar to FIG. 4, FIG. 6 shows the supply and demand of electric power when a consumer 50 who normally consumes 2000 kWh of electric power saves 800 kWh in response to a power saving request from a retailer 30. ..

Here, a part or all of the electric power stored in the power storage unit 31 and the surplus electric power are provided to the transaction participant 70.

Specifically, for example, referring to FIG. 6, the retailer 30 charges the power storage unit 31 with a certain amount of electric power in advance. The power generation company 10 supplies 2000 kWh of electric power to the retail company 30.

The consumer 50 normally consumes 2000 kWh of electric power, but here, by saving power, the consumer 50 consumes 1200 kWh of electric power.

Therefore, the retailer 30 supplies the consumer 50 with 1200 kWh of electric power consumed by the consumer 50 out of the 2000 kWh of electric power received from the power generation company 10. Therefore, the remaining 800 kWh of electric power becomes a surplus.

Since the surplus electric energy of 800 kWh is less than the transaction unit on the electric power exchange 20, it cannot be provided to the transaction participant 70.

Therefore, the retailer 30 takes out 200 kWh of electric power from the power storage unit 31 and combines it with the surplus 800 kWh of electric power to obtain 1000 kWh of electric energy that satisfies the transaction unit.

Specifically, the retailer 30 plans in advance to take out 200 kWh of electric power from the power storage unit 31 and secures 1000 kWh of electric energy together with the surplus 800 kWh of electric power, and plans to secure the electric power. The quantity is sold at the electric energy exchange 20. Then, the retailer 30 provides the transaction participant 70 with the electric energy of 1000 kWh during the power saving period.

As a result, the retailer 30 can provide the surplus electric energy to the transaction participant 70 even when the surplus electric energy is small.

FIG. 7 is a diagram showing a configuration of an electric power system according to an embodiment of the present invention.

With reference to FIG. 7, the electric power system 101 includes a power generation company device 11, an exchange device 21, a power storage unit 31, a power management device 32, a plurality of consumer devices 51, a plurality of loads 61, and the like. A plurality of storage batteries 62 and a plurality of power generation devices 63 are provided.

The power storage unit 31 includes, for example, a battery such as a lithium ion battery, a redox flow battery, a molten salt battery, a sodium-sulfur battery, or a lead battery, and can store a large amount of electric power, that is, a large amount of electric energy.

The power generation company device 11 is, for example, a server operated by the power generation company 10. The exchange device 21 is, for example, a server operated by the power exchange 20. The power management device 32 is, for example, a server operated by the retailer 30. The participant device 71 is, for example, a server operated by the transaction participant 70.

The consumer device 51 is, for example, a BEMS (Birding Energy Management System) or a HEMS (Home Energy Management System) for reducing power consumption by controlling the operation of an electric device in the power demand facility 52 of the consumer 50. It is a device used in the system of. The consumer device 51 is provided, for example, in the electric power demand facility 52.

The load 61, the storage battery 62, and the power generation device 63 are provided in the power demand facility 52 and are controlled by the consumer device 51. The load 61 is an electric device such as a lighting device and an air conditioner. The storage battery 62 is, for example, a storage battery provided for the purpose of charging a cheap late-night electric power and using the charged electric power in the daytime to reduce the electricity charge. The power generation device 63 is a power generation device such as a cogeneration system, a fuel cell, or a solar power generation device.

A network is established between the power generation company device 11 and the exchange device 21, between the exchange device 21 and the power management device 32, between the exchange device 21 and the participant device 71, and between the power management device 32 and each consumer device 51. Connected via.

The electric power transaction between the power generation company 10 and the retail company 30 at the power exchange 20 is performed using the power generation company device 11, the exchange device 21, and the power management device 32.

Further, the electric power transaction between the retailer 30 and the trading participant 70 performed on the electric power exchange 20 is performed using the electric power management device 32, the exchange device 21, and the participant device 71.

The retailer 30 receives power from the power generation company 10 according to the contents of the transaction with the power generation company 10 established on the power exchange 20.

The power management device 32 acquires the power supply information regarding the power supplied from the power generation company 10 to the retail company 30 from the exchange device 21. The power supply information indicates, for example, the amount of power purchased by the retailer 30 from the power generation company 10 and the period during which the power is supplied.

[Operation before the start of the power saving period]
The power management device 32 transmits power saving request information to each consumer device 51, for example, when the power supply and demand is expected to be tight. The power saving request information is information for requesting the consumer 50 to carry out power saving in the power demand facility 52, and indicates, for example, a power saving period which is a period in which power saving should be carried out, and an amount of power to be saved, that is, a power saving target. .. The power saving target is set for each power demand facility 52, for example.

When the retailer 30 requests power saving, the consumer 50 determines whether or not to save power in response to the power saving request, that is, whether or not to participate in power saving. Specifically, the consumer device 51 receives power saving request information from the power management device 32, and presents the contents of the received power saving request information to the consumer 50.

The consumer 50 confirms the content of the power saving request information, and for example, transmits the power saving response information (suppression amount information) indicating whether or not the power demand facility 52 participates in the power saving to the power management device 32.

For example, when the consumer 50 confirms the content of the power saving request information and determines that the power saving target can be achieved during the power saving period, the consumer device 51 transmits the power saving response information to the effect that he / she participates in the power saving to the power management device 32. do.

That is, the power saving response information indicating that the user participates in the power saving indicates that the power saving facility 52 is scheduled to suppress the consumption of the power amount indicated by the power saving target during the power saving period.

When the consumer device 51 transmits power saving response information indicating that it participates in power saving to the power management device 32, the consumer device 51 controls the load 61, the storage battery 62, and the power generation device 63 so that the power saving target is achieved during the power saving period.

When the power management device 32 receives the power saving response information indicating that it participates in power saving from the consumer device 51, the power management device 32 suppresses the consumption by the consumer 50 by confirming the power saving target of the power demand facility 52 stored by the power management device 32. Recognize the amount of power you plan to do.

Then, the charge / discharge control unit 40 predicts the amount of surplus power by summing the amount of power suppressed in each power demand facility 52.

Here, as described with reference to FIG. 5, for example, the retailer 30 may charge the power storage unit 31 with an amount of power that is less than the transaction unit among the surplus power during the power saving period. Further, as described with reference to FIG. 6, the retailer 30 may take out the electric power charged in advance in the power storage unit 31 from the power storage unit 31 during the power saving period.

Therefore, the power storage unit 31 needs to have a sufficient free capacity by the start of the power saving period when it is charged during the power saving period, and when power is taken out during the power saving period, the power saving period It is necessary to have a sufficient amount of electric power, that is, the remaining amount of electricity stored before the start of.

From an economical point of view, the power management device 32 determines, for example, whether to charge the power storage unit 31 or take out power from the power storage unit 31 during the power saving period, and the remaining amount of power stored in the power storage unit 31 by the start of the power saving period. To adjust.

Specifically, the power management device 32 predicts the amount of surplus power in the power saving period before the start of the power saving period, and based on the remaining amount of power stored in the power storage unit 31 and the remaining time until the start of the power saving period. , Determines whether to charge the power storage unit 31 or extract power from the power storage unit 31.

When the power management device 32 decides to charge the power storage unit 31 during the power saving period, the power management device 32 can charge the power storage unit 31 with a power amount less than the transaction unit among the surplus power amounts during the power saving period. A sufficient free capacity is secured in the power storage unit 31 by the start of the power saving period.

Specifically, for example, the power management device 32 predicts that the amount of surplus power during the power saving period, that is, the amount of surplus power is 1200 kWh, and the free capacity of the power storage unit 31 is less than 200 kWh. By the start of the power saving period, power is taken out from the power storage unit 31 so that the free capacity of the power storage unit 31 becomes 200 kWh or more, that is, the power storage unit 31 is discharged to reduce the remaining power storage amount.

Further, for example, when the power management device 32 predicts that the amount of surplus power in the power saving period is 1200 kWh and the free capacity of the power storage unit 31 is 200 kWh or more, until the start of the power saving period. The power storage unit 31 is operated so that the free capacity does not fall below 200 kWh.

The retailer 30 supplies, for example, the electric power taken out from the power storage unit 31 to the electric power demand facility 52 for consumption. The retailer 30 may use the electric power taken out from the power storage unit 31 for other purposes such as providing the power generation company 10.

On the other hand, when the power management device 32 decides to take out power from the power storage unit 31 during the power saving period, the amount of power that is less than the transaction unit among the surplus power amounts during the power saving period and the remaining amount of power stored in the power storage unit 31. The power storage unit 31 is charged by the start of the power saving period so that the total amount (hereinafter, also referred to as the total amount of power storage surplus) is an integral multiple of the transaction unit.

Specifically, for example, when the power management device 32 predicts that the amount of surplus power in the power saving period is 800 kWh, and the remaining power stored in the power storage unit 31 is less than 200 kWh, the power saving period The power storage unit 31 is charged so that the remaining power storage amount becomes 200 kWh or more by the start.

Further, for example, when the power management device 32 predicts that the amount of surplus power in the power saving period is 800 kWh and the free capacity of the power storage unit 31 is 200 kWh or more, until the start of the power saving period. The power storage unit 31 is operated so that the remaining power storage does not fall below 200 kWh.

[Operation during power saving period]
The power management device 32 transmits a suppression report request for requesting a report of the suppressed power consumption to each consumer device 51 periodically or irregularly during the power saving period.

When the consumer device 51 receives the suppression report request from the power management device 32, the consumer device 51 transmits the suppression record information indicating the actual value of the suppression amount of the power consumption in its own power demand facility 52 to the power management device 32.

The power management device 32 calculates the surplus power based on the suppression record information received from each consumer device 51. Specifically, the power management device 32 calculates the surplus power by adding the actual values of the amount of power consumption suppressed indicated by each suppression actual information. Then, the power management device 32 controls charging or discharging of the power storage unit 31 based on the calculated surplus power.

Specifically, for example, when the power storage unit 31 is discharged before the start of the power saving period, that is, when a predetermined free capacity is secured in the power storage unit 31, the power management device 32 uses a part of the surplus power during the power saving period. The power storage unit 31 is charged. At this time, the power management device 32 charges the power storage unit 31 so that the amount of the remaining power charged in the power storage unit 31 out of the surplus power is an integral multiple of the transaction unit.

On the other hand, the power management device 32 discharges the power storage unit 31 during the power saving period, for example, when the power storage unit 31 is charged before the start of the power saving period, that is, when a predetermined remaining storage amount is secured in the power storage unit 31. At this time, the power management device 32 adjusts the power taken out from the power storage unit 31 so that the total amount of power storage surplus is an integral multiple of the transaction unit.

[Power management device]
FIG. 8 is a diagram showing a configuration of a power management device according to an embodiment of the present invention.

With reference to FIG. 8, the power management device 32 includes a consideration information acquisition unit 33, a consideration calculation unit 34, a demand forecast unit 35, a power information acquisition unit 36, a storage unit 37, and a request creation unit 38. It includes a charge / discharge control unit (control unit) 40 and a power saving request transmission unit 41.

For example, the demand forecasting unit 35 acquires information on the power supply and demand from the exchange device 21, and predicts a period when the power supply and demand is tight based on the acquired information.

The request creation unit 38 sets a power saving period based on the period predicted by the demand forecasting unit 35, and sets a power saving target for each power demand facility 52. Then, the request creation unit 38 creates power saving request information indicating the power saving period and the corresponding power saving target for each power demand facility 52, and outputs the power saving request information to the power saving request transmitting unit 41. Further, the request creation unit 38 stores the power saving period and the power saving target of each power demand facility 52 in the storage unit 37.

The power saving request transmission unit 41 transmits each power saving request information received from the request creation unit 38 to the corresponding consumer device 51.

The power information acquisition unit 36 acquires, for example, the supply power information, which is information on the supply power, from the exchange device 21, and stores it in, for example, the storage unit 37. The power management device 32 recognizes, for example, a period of receiving power supply from the power generation company 10, the amount of power supplied from the power generation company 10, and the like based on the power supply information acquired by the power information acquisition unit 36.

Further, the power information acquisition unit 36 acquires the power saving response information transmitted from each consumer device 51 after the power saving request transmitting unit 41 transmits the power saving request information to each consumer device 51, and the consideration calculation unit 34 and the consideration calculation unit 36 Output to the charge / discharge control unit 40.

The power saving response information is information on whether or not the power saving target is planned to be achieved during the power saving period, that is, whether or not the power consumption indicated by the power saving target is planned to be suppressed. be.

The charge / discharge control unit 40 creates an adjustment control plan for adjusting the remaining charge amount of the power storage unit 31 based on each power saving response information acquired by the power information acquisition unit 36, and prepares a power saving period according to the created plan. Execute adjustment control before starting.

Next, the operation when the power management device 32 according to the embodiment of the present invention executes the planning control processing of adjustment control will be described.

Each device in the power system 101 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads a program including a part or all of each step of the following flowchart and sequence from a memory (not shown) and executes the program. The programs of these plurality of devices can be installed from the outside. The programs of these plurality of devices are distributed in a state of being stored in a recording medium.

FIG. 9 is a flowchart defining a procedure for creating a plan for adjustment control by the power management device according to the embodiment of the present invention.

With reference to FIG. 9, first, when the charge / discharge control unit 40 in the power management device 32 transmits the power saving request information to each consumer device 51, for example, the power saving request transmitting unit 41 determines the remaining charge of the power storage unit 31. Confirm (step S11).

Next, the charge / discharge control unit 40 confirms the power saving period stored in the storage unit 37, and confirms the ready time, which is the time from the current time to the start time of the power saving period (step S12). Here, for example, the clock used by the charge / discharge control unit 40 to confirm the time is periodically or irregularly synchronized with the clock used for each process at the power exchange 20.

Next, the charge / discharge control unit 40 saves power based on, for example, the power saving period stored in the storage unit 37, the power saving target of each power demand facility 52, and each power saving response information acquired by the power information acquisition unit 36. The amount of surplus power in the period is predicted (step S13).

Specifically, for example, the charge / discharge control unit 40 confirms the power demand facility 52 of the transmission source of the power saving response information indicating that it participates in power saving. The charge / discharge control unit 40 searches for the power saving target of the power demand facility 52 of the transmission source from the power saving targets of each power demand facility 52 stored in the storage unit 37. The charge / discharge control unit 40 recognizes that the power amount indicated by the power saving target acquired as a result of the search is the power amount saved during the power saving period at the power demand facility 52 of the transmission source, that is, the power amount whose consumption is suppressed. do.

Then, the charge / discharge control unit 40 predicts the amount of surplus power in the power saving period by summing up the amount of power whose consumption is suppressed in each power demand facility 52.

Next, the charge / discharge control unit 40 predicts the price of electric power in the power saving period based on various information stored in advance in the storage unit 37, for example (step S14).

Specifically, for example, the storage unit 37 stores in advance the price of electric power, weather information, supply and demand data of electric power, and the predicted value of surplus electric power in other businesses when the electric power transaction is completed in the past. ing. The charge / discharge control unit 40 predicts the price of electric power based on weather information, past supply and demand data, and the like, for example, using an algorithm unique to the retailer 30.

More specifically, for example, the charge / discharge control unit 40 creates a price function with weather information, supply and demand data, and the like as parameters, based on various information stored in the storage unit 37. Then, the charge / discharge control unit 40 inputs the current weather information, supply and demand data, and the like into the function to calculate the predicted price.

The charge / discharge control unit 40 may use the predicted value of the surplus power of another company, the weather forecast information in the power saving period, and the like as parameters.

Further, the charge / discharge control unit 40 may predict the price of electric power by using multiple regression analysis, time series analysis technology, machine learning technology, or the like.

Next, the charge / discharge control unit 40 is based on the remaining amount of electricity stored in the electricity storage unit 31 acquired by the operations shown in steps S11 to S14, the ready time, the predicted value of the surplus electric energy, and the predicted price of the electric energy. , The amount of electric power to be sold at the electric power exchange 20 and the amount of electric power to be charged or to be discharged in the adjustment control are determined (step S15).

For example, the charge / discharge control unit 40 determines whether to charge or discharge the power storage unit 31 in the adjustment control according to the length of the ready time.

Specifically, for example, the charge / discharge control unit 40 has determined that the total amount of storage surplus during the power saving period can be made an integral multiple of the transaction unit by increasing the remaining storage amount by the start of the power saving period. In this case, it is determined that the power storage unit 31 is charged in the adjustment control.

In this case, the charge / discharge control unit 40 further determines the amount of power to be charged in the adjustment control so that the total amount of power storage surplus during the power saving period can be an integral multiple of the transaction unit.

At this time, the charge / discharge control unit 40 sets the amount of electric power to be charged so that the remaining electric power of the electric power storage unit 31 becomes a predetermined value or more in a state where the electric power is provided to the business partner.

Specifically, in the charge / discharge control unit 40, the surplus power and the power taken out from the power storage unit 31 are provided to the business partner, that is, during the power saving period, the remaining power storage amount of the power storage unit 31 is equal to or less than a predetermined value. The amount of electric power to be charged is set in the power storage unit 31 so as not to be.

More specifically, for example, the charge / discharge control unit 40 receives power from the power storage unit 31 while the trading participant 70 is being provided with power because the amount of surplus power predicted in advance was not obtained during the power saving period. In order to prevent the remaining amount of electric power from becoming zero, the amount of electric power to be charged in the electric storage unit 31 is set to be large.

On the other hand, for example, when the charge / discharge control unit 40 determines that the total amount of storage surplus during the power saving period cannot be an integral multiple of the transaction unit even if the power storage unit 31 is charged until the start of the power saving period. , It is determined that the power storage unit 31 is discharged in the adjustment control.

In this case, the charge / discharge control unit 40 further discharges in the adjustment control so that the amount of the remaining power charged in the power storage unit 31 out of the surplus power in the power saving period can be made an integral multiple of the transaction unit. Determine the amount of power to be used.

At this time, in order to prevent the charge / discharge control unit 40 from being unable to continue charging due to the power storage unit 31 becoming fully charged during the power saving period, for example, because the amount of surplus power during the power saving period is larger than expected. , The amount of power to be discharged from the power storage unit 31 is set to be large.

Here, in general, the price of electric power on the electric power exchange 20 rises during the period when the supply and demand of electric power is tight. In consideration of this, the charge / discharge control unit 40 considers this and increases the amount of electric power sold at the electric power exchange 20 and the amount of electric power charged to the electric power storage unit 31 or the electric power storage unit 31 in the adjustment control so as to maximize the profit. Determine the amount of power to discharge. At this time, the charge / discharge control unit 40 may consider the consideration for power saving given to the consumer 50 by the retailer 30.

Next, the charge / discharge control unit 40 creates a specific plan for adjustment control (step S16). For example, the charge / discharge control unit 40 determines the detailed contents of the adjustment control so that the amount of electric power provided to the trading participant 70, which is a business partner, can be an integral multiple of the trading unit during the power saving period.

Specifically, for example, when the charge / discharge control unit 40 determines to charge the power storage unit 31 and the amount of electric power to be charged in the adjustment control by the operation shown in step S15, the charge / discharge control unit 40 is provided to the business partner during the power saving period. The charging start time, charging speed, and the like of the power storage unit 31 in the adjustment control are determined so that the amount of electric power generated can be multiplied by an integral multiple of the transaction unit.

Alternatively, when the charge / discharge control unit 40 determines to discharge the power storage unit 31 and the amount of power to be discharged in the adjustment control by the operation shown in step S15, the charge / discharge control unit 40 trades the amount of power provided to the business partner during the power saving period. The discharge start time, discharge speed, and the like of the power storage unit 31 in the adjustment control are determined so that the unit can be multiplied by an integral number.

With reference to FIG. 8 again, the charge / discharge control unit 40 executes adjustment control so that the amount of electric power provided to the business partner is an integral multiple of a predetermined transaction unit based on the suppression information and the like. Further, for example, at this time, the charge / discharge control unit 40 performs the storage balance of the power storage unit 31 in the adjustment control so that the remaining charge of the power storage unit 31 in the state where the electric power is provided to the business partner becomes a predetermined value or more. Adjust the amount.

Specifically, for example, the charge / discharge control unit 40 executes the adjustment control according to the adjustment control plan created based on the suppression information or the like. The charge / discharge control unit 40 executes adjustment control before the start timing of the power saving period.

Here, the electric power for charging the power storage unit 31 in the adjustment control may be, for example, the electric power supplied from the power generation company 10 that is not consumed by each consumer 50, or the electric power that is not consumed by each consumer 50. It may be electric power separately procured from 10 or the electric power company 80, or electric power generated by a power generation device (not shown).

Further, the electric power discharged from the power storage unit 31 in the adjustment control may be supplied to the consumer 50, delivered to the power generation company 10, or may be consumed by a load (not shown).

The electric power management device 32 sells the electric power that can be provided to the business partner in the electric power saving period at the electric power exchange 20 before the start timing of the electric power saving period. Here, the transaction participant 70 purchases electric power from the electric power management device 32.

The retailer 30 provides power to the trading participant 70 according to the contents of the transaction with the trading participant 70, for example, during the power saving period.

During the power saving period, the power information acquisition unit 36 of the power management device 32 transmits a suppression report request for requesting a report of the amount of power consumption suppression to each power demand facility 52, thereby suppressing the power consumption from each power demand facility 52. Get information. The suppression record information indicates the amount of suppression of power consumption in the power demand facility 52.

The charge / discharge control unit 40 controls the charging or discharging of the power storage unit 31 based on each suppression record information acquired by the power information acquisition unit 36 during the power saving period, thereby providing power to the transaction participant 70. To adjust.

Specifically, for example, the charge / discharge control unit 40 recognizes the surplus power based on each suppression record information. Then, the charge / discharge control unit 40 makes sure that the amount of power provided to the transaction participant 70 matches the amount of power sold to the transaction participant 70, that is, the amount of power provided to the transaction participant 70 is a transaction unit. The charging or discharging of the power storage unit 31 is controlled so as to be an integral multiple.

More specifically, when the charge / discharge control unit 40 charges the power storage unit 31 in the adjustment control, the total of the amount of surplus power and the amount of power discharged from the power storage unit 31 during the power saving period is the trading participant 70. The discharge of the power storage unit 31 is controlled so as to match the amount of electric power sold to.

On the other hand, when the charge / discharge control unit 40 discharges the power storage unit 31 in the adjustment control, the amount of the remaining power charged in the power storage unit 31 out of the surplus power is the amount of power sold to the transaction participant 70 during the power saving period. The charging of the power storage unit 31 is controlled so as to match with.

Hereinafter, the process of controlling the charging or discharging of the power storage unit 31 so that the amount of electric power provided to the transaction participant 70 matches the amount of electric power sold to the transaction participant 70 in advance is also referred to as provision-time control.

The consideration information acquisition unit 33 acquires the consideration information from the exchange device 21 and outputs the acquired consideration information to the consideration calculation unit 34, for example, when a transaction between the retailer 30 and the transaction participant 70 is performed.

The consideration information indicates the consideration given by the trading participant 70 for the provided electric power. The consideration information indicates, for example, the content of the consideration given to the retailer 30 by the transaction participant 70 when the retailer 30 supplies electric power to the transaction participant 70 according to the completed transaction.

The consideration information is not limited to the structure indicating the content of the consideration given to the retailer 30 by the transaction participant 70, and the consideration requested by the retailer 30 at the time of the transaction between the retailer 30 and the transaction participant 70. You may indicate that the transaction participant 70 accepts the contents of.

The consideration calculation unit 34 should give to the consumer 50 of each power demand facility 52 based on the consideration indicated by the consideration information acquired by the consideration information acquisition unit 33 and the power saving response information acquired by the power information acquisition unit 36. Calculate the price for power saving.

Specifically, for example, the consideration calculation unit 34 uses the power saving response information and the power saving target of each power demand facility 52 stored in the storage unit 37 in the power demand facility 52 of the transmission source of the power saving response information. Check the amount of power saved.

The consideration calculation unit 34 distributes the consideration indicated by the consideration information to each electric power demand facility 52 according to the amount of electric power to be saved in each electric power demand facility 52.

The consideration calculation unit 34 may consider the cost generated by the adjustment control when calculating the consideration to be given to the consumer 50. Further, the consideration calculation unit 34 may consider the profit obtained by subsequently using the charged power when charging the power storage unit 31 with a part of the surplus power during the power saving period, for example.

For example, when the power saving target is achieved in the power demand facility 52, the retailer 30 gives the power saving price calculated by the consideration calculation unit 34 to the customer 50 of the power demand facility 52.

FIG. 10 is a diagram for explaining an example of the relationship between each timing in the electric power system according to the embodiment of the present invention.

With reference to FIG. 10, the power management device 32 first predicts that the power supply and demand will be tight (timing T1), and then acquires power saving response information from each consumer device 51 to control the adjustment of the power storage unit 31. Create a plan (timing T2). The power management device 32 starts the adjustment control of the power storage unit 31 according to the created plan (timing T3).

The power management device 32 supplies the amount of power determined when the plan is created to the power exchange after the adjustment control plan is created (timing T2) and before the start of the power saving period (timing T6). Sell at 20 and close the transaction (timing T4). Here, the trading participant 70 purchases the electric power.

The power management device 32 ends the adjustment control of the power storage unit 31 (timing T5) before the start of the power saving period (timing T6) according to the prepared adjustment control plan.

After the power saving period starts (timing T6), the power management device 32 starts the control at the time of provision according to the time when the retailer 30 starts supplying power to the trading participant 70 (timing T7).

Then, before the end of the power saving period (timing T9), the power management device 32 ends the provision time control in accordance with the time when the retailer 30 ends the power supply to the transaction participant 70 (timing T8). ..

The retailer 30 may end the power supply to the trading participant 70 after the power saving period ends.

FIG. 11 is a diagram showing a configuration of a consumer device according to an embodiment of the present invention.

With reference to FIG. 11, the consumer device 51 consumes the consumer receiving unit (request receiving unit) 54, the processing unit 55, the equipment control unit 56, the consumer transmitting unit (suppression information transmitting unit) 57, and the consumer device 51. It is provided with a measuring unit 58.

The consumer receiving unit 54 receives the power saving request information transmitted from the power management device 32 and outputs the power saving request information to the processing unit 55.

The processing unit 55 receives the power saving request information from the consumer receiving unit 54, and notifies the presenting unit 53 of the content of the power saving request information, specifically, the power saving period and the power saving target.

The presentation unit 53 displays the content of the power saving request information notified from the processing unit 55 on, for example, a screen provided in the consumer device 51.

The consumer 50 confirms the content of the power saving request information displayed on the screen, and determines whether or not the power demand facility 52 participates in the power saving. Then, the consumer 50 inputs the determination result to the presentation unit 53 by operating the presentation unit 53.

The presentation unit 53 notifies the processing unit 55 of the determination result by the customer 50. Upon receiving the notification from the presentation unit 53, the processing unit 55 creates power saving response information indicating whether or not the power demand facility 52 participates in power saving.

The consumer transmission unit 57 transmits the power saving response information created by the processing unit 55 to the power management device 32.

Further, when the processing unit 55 creates the power saving response information to the effect that it participates in the power saving, the processing unit 55 creates a power saving plan capable of achieving the power saving target during the power saving period. The power saving plan is, for example, a control plan for equipment provided in the power demand facility 52, specifically, a load 61, a storage battery 62, and a power generation device 63.

The equipment control unit 56 controls the load 61, the storage battery 62, and the power generation device 63 according to the control plan created by the processing unit 55.

The consumption measuring unit 58 measures, for example, the power consumption of the load 61, the charging power or the discharging power of the storage battery 62, and the generated power of the power generation device 63, and outputs the measurement result to the processing unit 55.

The consumer receiving unit 54 receives the suppression report request transmitted from the power management device 32 and outputs it to the processing unit 55.

When the processing unit 55 receives the suppression report request from the consumer receiving unit 54, the processing unit 55 suppresses the power consumption in the power demand facility 52 to report to the power management device 32 based on the measurement result by the consumption measuring unit 58. Create performance information. The suppression record information indicates, for example, the amount of electric power suppressed by the power saving performed in the electric power demand facility 52. The suppression record information may indicate the electric power suppressed by power saving, the amount of electric power consumed by the electric power demand facility 52, or the electric power consumed by the electric power demand facility 52. May be good.

The consumer transmission unit 57 transmits the suppression record information created by the processing unit 55 to the power management device 32.

Next, the operation when the electric power system 101 according to the embodiment of the present invention executes the electric power management process will be described.

FIG. 12 is a diagram showing an example of a sequence of power management processing in the power system according to the embodiment of the present invention.

With reference to FIG. 12, the electric power management device 32 first performs a process for the retailer 30 to purchase electric power from the power generation operator 10. Specifically, the power generation company device 11 communicates with the power management device 32 via an exchange device 21 (not shown) to perform a process for the power generation company 10 to sell electric power to the retail company 30. (Step S52). The power management device 32 communicates with the power generation company device 11 via the exchange device 21 to perform a process for the retail company 30 to purchase electric power from the power generation company 10 (step S52).

When the retailer 30 purchases electric power from the power generation company 10, the electric power is supplied from the power generation company 10 to the retailer 30.

Next, when the power management device 32 predicts the tightness of the power supply and demand based on the information acquired from the exchange device 21, for example (step S52), the power saving request information is transmitted to the consumer device 51 in each power demand facility 52. (Step S53).

Next, the consumer device 51 receives the power saving request information from the power management device 32, and transmits the power saving response information indicating whether or not the power demand facility 52 participates in the power saving to the power management device 32. Here, the power demand facility 52 transmits power saving response information to the effect that it participates in power saving (step S54).

Next, the power management device 32 performs a plan creation process for adjusting and controlling the remaining amount of electricity stored in the electricity storage unit 31 based on the power saving response information and the like received from each power demand facility 52 (step S55). Specifically, for example, the power management device 32 creates a plan for adjustment control according to the procedure described with reference to FIG.

Next, the power management device 32 executes the adjustment control according to the created adjustment control plan (step S56).

Next, the retailer 30 sells the electric power that can be provided during the power saving period to the trading participant 70 at the electric power exchange 20.

Specifically, the electric power management device 32 communicates with the participant device 71 via the exchange device 21 to perform a process for selling the electric power to the transaction participant 70 (step S57). At this time, the power management device 32 acquires the consideration information indicating the consideration for providing the electric power from the transaction participant 70. Further, the participant device 71 performs a process for purchasing the electric power from the power generation company 10 by communicating with the electric power management device 32 via the exchange device 21 (step S58).

Next, when the power saving period starts, the power demand facility 52 suppresses the power consumption in the power demand facility 52 by controlling the load 61, the storage battery 62, and the power generation device 63 in the power demand facility 52 (step S59). ..

Next, the power management device 32 transmits a suppression report request for requesting a report of the amount of suppression of power consumption to each power demand facility 52 (step S60).

Next, the consumer device 51 receives the suppression report request from the power management device 32, and transmits the suppression record information indicating the suppression amount of the power consumption in its own power demand facility 52 to the power management device 32.

Next, the retailer 30 provides the trading participant 70 with the amount of electric power sold to the trading participant 70. The electric power management device 32 implements provision-time control according to the period during which the retailer 30 supplies electric power to the trading participant 70 (step S62).

Further, the electric power management device 32 periodically or irregularly sends a suppression report request to each consumer device 51 until the period in which the retailer 30 provides electric power to the transaction participant 70 ends, for example. Monitor surplus power. Then, the power management device 32 performs provision-time control based on the monitoring result of the surplus power.

Next, the power management device 32 calculates the power saving consideration given to the power demand facility 52 based on the consideration information acquired in the operation shown in step S57, for example (step S63).

In the power system 101 according to the embodiment of the present invention, the consumer device 51 is configured to receive power saving request information from the power management device 32 and transmit power saving response information to the power management device 32. , Not limited to this.

For example, the consumer device 51 may be configured to receive power saving request information from the power management device 32 and transmit suppression amount notification information (suppression amount information) to the power management device 32. The suppression amount notification information is information on the planned amount of power consumption to be suppressed. For example, the power demand facility 52 indicates a planned value of the amount of power to be suppressed during the power saving period.

Specifically, for example, in the electric power demand facility 52, the presentation unit 53 receives an operation by the consumer 50 to acquire a planned value of the amount of electric power saved in the electric power demand facility 52 during the power saving period. The consumer transmission unit 57 transmits the suppression amount notification information indicating the planned value acquired by the presentation unit 53 to the power management device 32.

In the power management device 32, information indicating the types of equipment such as the load 61, the storage battery 62, and the power generation device 63 provided in each power demand facility 52 is stored in advance in the storage unit 37. The electric power information acquisition unit 36 receives the suppression amount notification information transmitted from the electric power demand facility 52.

The charge / discharge control unit 40 uses the information stored in the storage unit 37 to confirm the type of equipment in the power demand facility 52 that is the source of the suppression amount notification information received by the power information acquisition unit 36. Then, the charge / discharge control unit 40 determines whether or not the above-mentioned planned value indicated by the suppression amount notification information is appropriate.

When the power management device 32 determines that the planned value is appropriate, the power management device 32 acquires the planned value as the amount of power to be saved in the power demand facility 52 of the transmission source. On the other hand, when the power management device 32 determines that the planned value is not appropriate, the power management device 32 corrects the planned value and acquires the corrected planned value as the amount of power to be saved in the power demand facility 52 of the transmission source.

The charge / discharge control unit 40 predicts the amount of surplus power in the power saving period by summing up the amount of power saved in each power demand facility 52.

Further, in the power system 101 according to the embodiment of the present invention, the power saving request information transmitted by the power management device 32 is configured to indicate the power saving period and the power saving target, but the present invention is not limited to this, for example. , The power saving request information may be configured to indicate the power saving target and not the power saving period. In this case, the consumer device 51 recognizes, for example, the time after a predetermined time from the time when the power saving request information is received as the start time of the power saving period.

Further, in the power system 101 according to the embodiment of the present invention, the power saving request information transmitted by the power management device 32 is configured to indicate the amount of power to be saved in the power demand facility 52 as a power saving target. The present invention is not limited to this, and the target value of the electric energy consumption in the electric power demand facility 52 may be shown as a power saving target.

<Modification example>
In the electric power system 101 according to the embodiment of the present invention, the transaction unit defined by the amount of electric power is defined for the transaction of electric power, but the present invention is not limited to this, and the transaction of electric power is defined by the electric power. The transaction unit may be defined. The transaction unit specified by the electric energy is the transaction unit specified by the unit Wh (watt hour), and the transaction unit specified by the electric energy is the transaction unit specified by the unit W (watt hour). When the transaction unit defined by the electric power is defined, for example, the electric power sold by the retailer 30 to the transaction participant 70 is an integral multiple of the transaction unit.

In the power management device 32, the charge / discharge control unit 40 executes adjustment control so that the power provided to the business partner becomes a predetermined transaction unit based on the suppression information or the like. Specifically, for example, the charge / discharge control unit 40 is at a time before the start of the power saving period so that the power saving period can stably provide the power of an integral multiple of the transaction unit to the trading participant 70. The adjustment control is executed to adjust the remaining amount of electricity stored in the electricity storage unit 31.

In FIGS. 5 to 12, an example in which the transaction unit is defined by the electric energy in the electric power system 101 has been described, but even when the transaction unit is defined by the electric power, the various processes described in FIGS. The same process is performed.

For example, in [Operation before the start of the power saving period] and [Operation in the power saving period], the power system 101 operates when the transaction unit is specified by the electric energy. By setting "amount" to "electric power", the electric power system 101 can realize the operation when the transaction unit is defined by electric power.

That is, the power management device 32 is sufficient for the power storage unit 31 by the start of the power saving period, for example, so that the power storage unit 31 can be charged with power that is less than the transaction unit among the surplus power in the power saving period. Secure free space.

Alternatively, the power management device 32 can make the total of the power that is less than the transaction unit among the surplus power in the power saving period and the power taken out from the power storage unit 31 an integral multiple of the transaction unit during the power saving period. The power storage unit 31 is charged by the start of.

Further, when the power storage unit 31 is discharged before the start of the power saving period, that is, when a predetermined free capacity is secured in the power storage unit 31, the power management device 32 charges the power storage unit 31 with a part of the surplus power during the power saving period. do. At this time, the power management device 32 charges the power storage unit 31 so that the remaining power charged in the power storage unit 31 of the surplus power is an integral multiple of the transaction unit.

On the other hand, the power management device 32 discharges the power storage unit 31 during the power saving period when the power storage unit 31 is charged before the start of the power saving period, that is, when a predetermined remaining storage amount is secured in the power storage unit 31. At this time, the power management device 32 uses the power storage unit 31 so that the total of the power that is less than the transaction unit among the surplus power during the power saving period and the power taken out from the power storage unit 31 is an integral multiple of the transaction unit. Adjust the power taken from.

Further, in the electric power system 101 according to the embodiment of the present invention, the retailer 30 has installed the power storage unit 31 in his / her own facility, for example, but the present invention is not limited to this, and the retailer 30 is not limited to this. It suffices to install a coordinating unit capable of coordinating the electric power provided to the trading participant 70. The coordinating unit is, for example, a part or all of a power generation device, a load device, and a power storage device. The retailer 30 is not limited to one coordinating unit, and may have a plurality of coordinating units.

The power generation device is, for example, a fuel cell, a generator using an internal combustion engine, or the like. The load device is various devices that consume electric power, as well as devices such as a natural refrigerant heat pump water heater. For example, hot water boiled by a natural refrigerant heat pump water heater or the like can be stored in a tank or the like having high heat retention and used when necessary. The power storage device may be the power storage unit 31, or may be, for example, a storage battery or the like mounted on an electric vehicle or the like owned by a retailer.

In this case, the power management device 32 includes a control unit instead of the charge / discharge control unit 40. The control unit controls the adjustment unit so that the electric power provided to the transaction participant 70 becomes a predetermined transaction unit based on the suppression amount information.

Specifically, for example, when the coordinating unit is a power generation device, the control unit participates in the transaction by controlling the power generation device so that the total of the power generated by the power generation device and the surplus power becomes a predetermined transaction unit. The electric power of the transaction unit can be provided to the person 70. Further, for example, when the electric power provided to the transaction participant 70 is likely to fall below a predetermined transaction unit, the control unit increases the electric power generated by the power generation device to provide the electric power to the transaction participant 70. Maintains the state in which is the transaction unit. In addition, the control unit reduces the power generated by the power generation device when the power provided to the transaction participant 70 is likely to exceed a predetermined transaction unit, so that the power provided to the transaction participant 70 is the transaction. Maintain the state of being a unit.

Further, when the adjusting unit is a load device, the control unit causes the transaction participant 70 to consume a part of the surplus power in the load device so that the remaining surplus power becomes a predetermined transaction unit. The power of the transaction unit can be provided. Further, for example, the control unit reduces the power consumption by the load device when the power provided to the transaction participant 70 is likely to fall below a predetermined transaction unit, so that the power provided to the transaction participant 70 can be reduced. Maintain the state of the transaction unit. Further, the control unit increases the power consumption by the load device when the electric power provided to the transaction participant 70 is likely to exceed a predetermined transaction unit, so that the electric power provided to the transaction participant 70 is the transaction. Maintain the state of being a unit.

Further, in the electric power system 101 according to the embodiment of the present invention, the retailer 30 has a configuration in which the electric power that can be provided during the power saving period is sold to the trading participant 70 at the electric power exchange 20. It is not limited to. For example, the retailer 30 may be configured to sell the power that can be provided during the power saving period on a wholesale power exchange such as a spot market, a 4-hour market, a 1-hour market, a real-time market, or a capacity market. ..

By the way, in the transaction of electric power on the electric power exchange, for example, a transaction unit defined by electric power is defined, and the electric power exchange cannot buy or sell an amount of electric power less than the transaction unit.

For this reason, retailers may not be able to effectively utilize surplus power generated by power saving at power demand facilities.

Further, since the surplus power generated by power saving in the power demand facility is not stable, the power generation device provided in each power demand facility is indirectly controlled, for example, as in the technique described in Patent Document 1. Even if this is the case, it is difficult to make surplus electricity a trading unit.

On the other hand, in the power management device according to the embodiment of the present invention, the power information acquisition unit 36 is the power supply information which is information about the power supply, and one or more power demand facilities 52 which are the consumption destinations of the power. Acquires power saving response information (suppression amount information) regarding the power consumption suppression amount in. Based on the power saving response information, the charge / discharge control unit 40 performs adjustment control for adjusting the remaining charge amount of the power storage unit 31 so that the power provided to the transaction participant 70 becomes a transaction unit at the power exchange 20. In the power system in which the power management device is used, with respect to the surplus power obtained by subtracting the power consumption in each power demand facility 52 from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit 31 or the power storage unit Part or all of the power stored in 31 and surplus power are provided to the trading participant 70.

With this configuration, for example, of the excess power in the power demand facility 52 provides to power to satisfy the transaction unit to the transaction participant 70, it is possible to charge the remaining power storage unit. As a result, the consideration for the provided electric power can be received from the transaction participant 70, and the electric power that is not the target of the transaction is charged and held in the power storage unit, and then supplied to, for example, the electric power demand facility 52 as needed. Therefore, surplus power can be utilized without waste. For example, when the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction unit, participants transactions even with a small amount of surplus power's 70 Can be provided to, and can receive compensation for the provided power from the trading participant 70.

Therefore, in the power management device according to the embodiment of the present invention, the surplus power can be effectively utilized to enhance the economic effect of power saving.

Further, in the power management device according to the embodiment of the present invention, the charge / discharge control unit 40 performs adjustment control before the start timing of the power saving period. In the power system, power is provided to the trading participant 70 during the power saving period.

With such a configuration, when it is determined that a part of the surplus electric power needs to be charged to the power storage unit 31 in order to make the electric power provided to the transaction participant 70 a predetermined transaction unit, the transaction participant 70 is notified. By the start of the power saving period, which is the period for supplying electric power, the remaining amount of electricity stored in the power storage unit 31 can be reduced to secure the required free capacity. On the other hand, when it is determined that the surplus power and the power in the power storage unit 31 need to be combined in order to make the power provided to the transaction participant 70 into a predetermined transaction unit, the power storage unit 31 of the power storage unit 31 by the start of the power saving period. It is possible to secure the required amount of electric power by increasing the remaining amount of electricity stored.

Further, in the power management device according to the embodiment of the present invention, the charge / discharge control unit 40 determines whether to charge or discharge the power storage unit 31 in the adjustment control according to the length of the time until the start timing of the power saving period. decide.

With such a configuration, for example, when it is determined that a required amount of power can be charged by the start of the power saving period, adjustment control for charging the power storage unit 31 is performed, and the required amount of power is supplied. When it is determined that charging cannot be performed by the start of the power saving period, on the contrary, adjustment control for discharging the power storage unit 31 can be performed in order to secure the free capacity of the power storage unit 31.

Further, in the power management device according to the embodiment of the present invention, the charge / discharge control unit 40 makes the remaining charge of the power storage unit 31 equal to or more than a predetermined value in a state where the power is provided to the transaction participant 70. The remaining amount of electricity is adjusted in the adjustment control.

With such a configuration, for example, the amount of surplus power predicted based on the suppression information could not be obtained, so that the remaining amount of power stored in the power storage unit 31 is being supplied to the trading participant 70 during the power saving period. In order to prevent the power storage unit 31 from becoming zero, the power storage unit 31 can be charged in a large amount by the start of the power saving period to allow a margin for the remaining power storage.

Further, in the electric power management device according to the embodiment of the present invention, the consideration information acquisition unit 33 acquires the consideration information indicating the consideration given by the transaction participant 70 for the provided electric power. The consideration calculation unit 34 calculates the consideration to be given to the consumer 50 of each power demand facility 52 based on the consideration indicated by the consideration information and the power saving response information.

With such a configuration, the consumer can receive a consideration based on the surplus power, so that the consumer can be given an incentive to save power during the power saving period, and more surplus power can be generated.

Further, in the power management device according to the embodiment of the present invention, the power information acquisition unit 36 acquires suppression record information indicating the amount of power consumption suppression reported from the power demand facility 52 during the power saving period. The charge / discharge control unit 40 adjusts the power provided to the transaction participant 70 by controlling the charge or discharge of the power storage unit 31 based on the suppression record information during the power saving period.

With such a configuration, for example, the charge amount or the discharge amount of the power storage unit 31 can be adjusted so that the electric power provided to the transaction participant 70 is a transaction unit. Further, for example, stable electric power with little fluctuation can be provided to the trading participant 70.

Further, in the power system according to the embodiment of the present invention, the consumer device 51 transmits power saving response information regarding the amount of power consumption suppression in the power demand facility 52 to the power management device 32. The power management device 32 receives power saving response information from the consumer device 51, and based on the received power saving response information, the power storage unit so that the power provided to the transaction participant 70 becomes a transaction unit on the power exchange 20. Adjustment control is performed to adjust the remaining charge of 31. The consumer device 51 transmits the suppression record information indicating the actual power consumption suppression amount in the power demand facility 52 to the power management device 32. Further, regarding the surplus power obtained by subtracting the power consumption in each power demand facility 52 from the supplied power, a part of the surplus power is the remaining power charged in the power storage unit 31, or a part of the power stored in the power storage unit 31 or. All and surplus electricity are provided to trading participant 70.

With this configuration, for example, of the excess power in the power demand facility 52 provides to power to satisfy the transaction unit to the transaction participant 70, it is possible to charge the remaining power storage unit. As a result, the consideration for the provided electric power can be received from the transaction participant 70, and the electric power that is not the target of the transaction is charged and held in the power storage unit, and then supplied to, for example, the electric power demand facility 52 as needed. Therefore, surplus power can be utilized without waste. For example, when the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction unit, participants transactions even with a small amount of surplus power's 70 Can be provided to, and can receive compensation for the provided power from the trading participant 70.

Therefore, in the electric power system according to the embodiment of the present invention, the surplus electric power can be effectively utilized to enhance the economic effect of power saving.

Further, in the consumer device according to the embodiment of the present invention, the consumer receiving unit 54 is a power management device 32 used by the retailer 30 who can provide electric power to the trading participant 70 and receive compensation. Receive power saving request information from. When the consumer receiving unit 54 receives the power saving request information, the consumer transmitting unit 57 transmits the power saving response information regarding the amount of power consumption suppression in the power demand facility 52 to the power management device 32. The power management device 32 receives power saving response information from the consumer device, and based on the received power saving response information, the power storage unit so that the power provided to the transaction participant 70 becomes a transaction unit on the power exchange 20. Adjustment control is performed to adjust the remaining charge of 31. In the power system used by the consumer device, with respect to the surplus power obtained by subtracting the power consumption in each power demand facility 52 from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit 31 or the power storage unit Part or all of the power stored in 31 and surplus power are provided to the trading participant 70.

With this configuration, for example, of the excess power in the power demand facility 52 provides to power to satisfy the transaction unit to the transaction participant 70, it is possible to charge the remaining power storage unit. As a result, the consideration for the provided electric power can be received from the transaction participant 70, and the electric power that is not the target of the transaction is charged and held in the power storage unit, and then supplied to, for example, the electric power demand facility 52 as needed. Therefore, surplus power can be utilized without waste. For example, when the surplus power is less than the transaction unit, by combining the power in the surplus electric power and power storage unit, it is possible to be power to meet the transaction unit, participants transactions even with a small amount of surplus power's 70 Can be provided to, and can receive compensation for the provided power from the trading participant 70.

Therefore, in the consumer device according to the embodiment of the present invention, the surplus electric power can be effectively utilized to enhance the economic effect of power saving.

It should be considered that the above embodiments are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

The above description includes the features described below.

[Appendix 1]
A power management device used by a business operator who can provide electric power to a business partner and receive compensation, and is used in an electric power system provided with a power storage unit.
It is equipped with a power information acquisition unit that acquires information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities that consume power.
In the electric power system, with respect to the surplus electric power obtained by subtracting the power consumption in each electric power demand facility from the supplied electric power, a part of the surplus electric power is stored in the electric power storage unit or the remaining electric power charged in the electric power storage unit. Part or all of the power generated and the surplus power are provided to the business partner.
Moreover,
A control unit that performs adjustment control for adjusting the remaining amount of electricity stored in the electricity storage unit so that the electric power provided to the business partner becomes a predetermined transaction unit based on the suppression amount information is provided.
The control unit describes the contents of the adjustment control as the remaining amount of electric power, the time until the electric power is provided to the business partner, and the predicted value of the electric power that becomes surplus during the period when the electric power is provided to the business partner. And determined based on at least one of the estimated prices of electricity during the period in which the electricity is provided to the business partner.
The power storage unit is a power management device including at least one of a lithium ion battery, a redox flow battery, a molten salt battery, a sodium sulfur battery, and a lead battery.

[Appendix 2]
Electric power management equipment used by businesses that can provide electric power to business partners and receive compensation,
One or more consumer devices used in one or more power demand facilities that consume power, respectively.
Equipped with a power storage unit
With respect to the surplus power obtained by subtracting the power consumption of each power demand facility from the supplied power, a part of the surplus power is the remaining power charged in the power storage unit, or a part or all of the power stored in the power storage unit. And the surplus electricity are provided to the business partner,
The consumer device transmits information on the amount of power consumption restraint in the power demand facility to the power management device.
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit of the power storage unit so that the power provided to the business partner becomes a predetermined transaction unit. Performs adjustment control to adjust the remaining amount of electricity,
The consumer device transmits the suppression record information indicating the actual power consumption suppression amount in the power demand facility to the power management device.
The power management device sets the contents of the adjustment control to the remaining amount of electricity stored, the time until the power is provided to the business partner, and the predicted value of the surplus power during the period when the power is provided to the business partner. , And determined based on at least one of the estimated prices of electricity during the period in which the electricity is provided to the business partner.
The power storage unit is a power system including at least one of a lithium ion battery, a redox flow battery, a molten salt battery, a sodium sulfur battery, and a lead battery.

[Appendix 3]
A consumer device used in an electric power system equipped with a power storage unit.
In the power system, with respect to the surplus power obtained by subtracting the power consumption of one or a plurality of power demand facilities to be the power consumption destination from the supplied power, the remaining power in which a part of the surplus power is charged to the power storage unit, Alternatively, a part or all of the electric power stored in the power storage unit and the surplus electric power are provided to the business partner.
A request receiving unit that receives power saving request information from a power management device used by a business operator that can provide electric power to a business partner and receive compensation.
When the power saving request information is received by the request receiving unit, it is provided with a suppression information transmitting unit that transmits the suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device.
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit of the power storage unit so that the power provided to the business partner becomes a predetermined transaction unit. Performs adjustment control to adjust the remaining amount of electricity,
The power management device sets the contents of the adjustment control to the remaining amount of electricity stored, the time until the power is provided to the business partner, and the predicted value of the surplus power during the period when the power is provided to the business partner. , And determined based on at least one of the estimated prices of electricity during the period in which the electricity is provided to the business partner.
The power storage unit is a consumer device including at least one of a lithium ion battery, a redox flow battery, a molten salt battery, a sodium sulfur battery, and a lead battery.

10 Power generation company 11 Power generation company equipment 20 Electric power exchange 21 Exchange equipment 30 Retailer 31 Power storage unit 32 Electric power management equipment 33 Consideration information acquisition department 34 Consideration calculation department 35 Demand forecasting department 36 Electric power information acquisition department 37 Storage unit 38 Request creation unit 40 Charge / discharge control unit 41 Power saving request transmission unit 50 Consumer 51 Consumer equipment 52 Power demand facility 53 Presentation unit 54 Consumer reception unit 55 Processing unit 56 Equipment control unit 57 Consumer transmission unit 58 Consumption measurement unit 61 Load 62 Storage battery 63 Power generation equipment 70 Trading participants 71 Participant equipment 80 Electric power company 101 Electric power system

Claims (9)

An electric power management device used by a business operator who can provide electric power to a business partner and receive compensation, and is used in an electric power system provided with an adjustment unit for adjusting the electric power provided to the business partner.
It is equipped with a power information acquisition unit that acquires information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities that consume power.
The adjusting unit includes a power generation device, a load device, and a power storage device.
In the electric power system, with respect to the surplus electric power obtained by subtracting the power consumption in each electric power demand facility from the supplied electric power, a part of the surplus electric power is stored in the electric power storage device or the remaining electric power charged in the electric power storage device. Part or all of the generated power and the surplus power are provided to the business partner,
Moreover,
A control unit that performs adjustment control for adjusting the remaining charge of the power storage device so that the electric power provided to the business partner becomes a predetermined transaction unit based on the suppression amount information is provided.
In the electric power system, electric power is provided to the business partner during the power saving period.
The control unit performs the adjustment control before the start timing of the power saving period.
The control unit increases the total amount of power that is less than the transaction unit of the surplus power during the power saving period and the power that is taken out from the power storage device to increase the remaining amount of power stored in the power storage device by the start of the power saving period. If it is determined that the transaction unit can be multiplied by an integral multiple of the transaction unit, it is determined in the adjustment control that the power storage device is charged .
The control unit is a power management device that controls the adjustment unit so as to maintain a state in which the power provided to the business partner is an integral multiple of the transaction unit during the power saving period based on the suppression amount information. The first aspect of the present invention, wherein the control unit adjusts the remaining amount of electricity stored in the adjustment control so that the remaining amount of electricity stored in the electricity storage device in a state where electric power is provided to the business partner becomes a predetermined value or more. Power management device. The power management device further
A consideration information acquisition unit that acquires consideration information indicating the consideration given by the business partner for the provided electric power, and
The power management device according to claim 1 or 2, further comprising a consideration calculation unit for calculating the consideration to be given to the consumer of each electric power demand facility based on the consideration indicated by the consideration information and the suppression amount information. .. In the electric power system, electric power is provided to the business partner during the power saving period.
The power information acquisition unit acquires suppression record information indicating the amount of power consumption suppression reported from the power demand facility during the power saving period.
Claims 1 to 3 in which the control unit adjusts the power provided to the business partner by controlling the charging or discharging of the power storage device based on the suppression record information during the power saving period. The power management device according to any one of the above. It ’s a power system,
Electric power management equipment used by businesses that can provide electric power to business partners and receive compensation,
One or more consumer devices used in one or more power demand facilities that consume power, respectively.
It is equipped with an adjustment unit for adjusting the electric power provided to the business partner.
The adjusting unit includes a power generation device, a load device, and a power storage device.
With respect to the surplus power obtained by subtracting the power consumption of each power demand facility from the supplied power, a part of the surplus power is the remaining power charged in the power storage device, or a part or all of the power stored in the power storage device. And the surplus electricity are provided to the business partner,
The consumer device transmits information on the amount of power consumption restraint in the power demand facility to the power management device.
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage device of the power storage device so that the power provided to the business partner becomes a predetermined transaction unit. Performs adjustment control to adjust the remaining amount of electricity,
The consumer device transmits the suppression record information indicating the actual power consumption suppression amount in the power demand facility to the power management device.
In the electric power system, electric power is provided to the business partner during the power saving period.
The power management device performs the adjustment control before the start timing of the power saving period.
The power management device calculates the total of the power that is less than the transaction unit of the surplus power in the power saving period and the power taken out from the power storage device, and the remaining power stored in the power storage device by the start of the power saving period. If it is determined that the transaction unit can be multiplied by an integral multiple by increasing the number, it is determined in the adjustment control that the power storage device is charged .
The power management device is a power system that controls the adjusting unit so that the power provided to the business partner is an integral multiple of the transaction unit during the power saving period based on the suppression amount information. It ’s a power system,
Electric power management equipment used by businesses that can provide electric power to business partners and receive compensation,
It is equipped with an adjustment unit for adjusting the electric power provided to the business partner.
The adjusting unit includes a power generation device, a load device, and a power storage device.
With respect to the surplus power obtained by subtracting the power consumption of one or more power demand facilities that are the power consumption destinations from the supplied power, a part of the surplus power is stored in the power storage device or the remaining power charged in the power storage device. A part or all of the generated electric power and the surplus electric power are provided to the business partner.
The power management device performs adjustment control for adjusting the remaining amount of electricity stored in the power storage device so that the power provided to the business partner becomes a predetermined transaction unit.
In the electric power system, electric power is provided to the business partner during the power saving period.
The power management device performs the adjustment control before the start timing of the power saving period.
The power management device calculates the total of the power that is less than the transaction unit of the surplus power in the power saving period and the power taken out from the power storage device, and the remaining power stored in the power storage device by the start of the power saving period. If it is determined that the transaction unit can be multiplied by an integral multiple by increasing the number, it is determined in the adjustment control that the power storage device is charged .
The electric power management device is an electric power system that controls the adjusting unit so that the electric power provided to the business partner is maintained as an integral multiple of the transaction unit during the power saving period. A power management method in a power management device used by a business operator who can provide electric power to a business partner and receive compensation, and which is used in a power system provided with a coordinating unit for adjusting the power provided to the business partner. And
The adjusting unit includes a power generation device, a load device, and a power storage device.
Including the step of acquiring information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities to which the power is consumed.
In the electric power system, with respect to the surplus electric power obtained by subtracting the power consumption in each electric power demand facility from the supplied electric power, a part of the surplus electric power is stored in the electric power storage device or the remaining electric power charged in the electric power storage device. Part or all of the generated power and the surplus power are provided to the business partner,
Moreover,
A step of performing adjustment control for adjusting the remaining charge of the power storage device so that the electric power provided to the business partner becomes a predetermined transaction unit based on the suppression amount information is included.
In the electric power system, electric power is provided to the business partner during the power saving period.
In the step of performing the adjustment control, the adjustment control is performed before the start timing of the power saving period.
The power management method further
The transaction is performed by increasing the total amount of power that is less than the transaction unit of the surplus power in the power saving period and the power taken out from the power storage device by increasing the remaining storage amount of the power storage device by the start of the power saving period. When it is determined that the unit can be multiplied by an integral multiple, the step of determining to charge the power storage device in the adjustment control and
A power management method including a step of controlling the adjustment unit so as to maintain a state in which the power provided to the business partner is an integral multiple of the transaction unit during the power saving period based on the suppression amount information. A power management device used by a business operator who can provide electric power to a business partner and receive compensation, and one or more consumer devices used in one or more electric power demand facilities to which electric power is consumed, respectively. , A power management method in a power system including a coordinating unit for adjusting the power provided to the business partner.
The adjusting unit includes a power generation device, a load device, and a power storage device.
In the power system, with respect to the surplus power obtained by subtracting the power consumption in each power demand facility from the supplied power, a part of the surplus power is stored in the power storage device or the remaining power charged in the power storage device. Part or all of the electric power and the surplus electric power are provided to the business partner,
A step in which the consumer device transmits information on the amount of power consumption restraint in the power demand facility to the power management device.
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage device of the power storage device so that the power provided to the business partner becomes a predetermined transaction unit. Steps to perform adjustment control to adjust the remaining charge and
The consumer device includes a step of transmitting suppression record information indicating the actual power consumption suppression amount in the power demand facility to the power management device.
In the electric power system, electric power is provided to the business partner during the power saving period.
In the step of performing the adjustment control, the power management device performs the adjustment control before the start timing of the power saving period.
The power management method further
The total of the electric power that is less than the transaction unit of the surplus electric power in the electric power saving period and the electric power taken out from the electric power storage device by the electric power management device is the total electric power remaining in the electric power storage device by the start of the electric power saving period. When it is determined that the transaction unit can be multiplied by an integral multiple by increasing the number, the step of determining to charge the power storage device in the adjustment control and
The power management device includes a step of controlling the adjusting unit so that the power provided to the business partner is maintained in an integral multiple of the transaction unit during the power saving period based on the suppression amount information. , Power management method. It is used in a power management device used by a business operator who can provide electric power to a business partner and receive compensation, and is used in a power system provided with a coordinating unit for adjusting the electric power provided to the business partner. It ’s a power management program,
On the computer
It is a program for executing a step of acquiring information on the supplied power and information on the amount of power consumption restraint in one or more power demand facilities to which the power is consumed.
The adjusting unit includes a power generation device, a load device, and a power storage device.
In the electric power system, with respect to the surplus electric power obtained by subtracting the power consumption in each electric power demand facility from the supplied electric power, a part of the surplus electric power is stored in the electric power storage device or the remaining electric power charged in the electric power storage device. Part or all of the generated power and the surplus power are provided to the business partner,
In addition, to the computer
It is a program for executing a step of performing adjustment control for adjusting the remaining charge amount of the power storage device so that the electric power provided to the business partner becomes a predetermined transaction unit based on the suppression amount information.
In the electric power system, electric power is provided to the business partner during the power saving period.
In the step of performing the adjustment control, the adjustment control is performed before the start timing of the power saving period.
In addition, to the computer
The transaction is performed by increasing the total amount of power that is less than the transaction unit of the surplus power in the power saving period and the power taken out from the power storage device by increasing the remaining storage amount of the power storage device by the start of the power saving period. When it is determined that the unit can be multiplied by an integral multiple, the step of determining to charge the power storage device in the adjustment control and
Power management for executing a step of controlling the adjusting unit so that the power provided to the business partner is an integral multiple of the transaction unit during the power saving period based on the suppression amount information. program.

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