JP2017060230A - Power management system, power management method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power management system capable of efficiently creating a plan to transfer power between a plurality of groups.SOLUTION: A power management system comprises a transfer planning unit. The transfer planning unit refers to a storage unit storing information showing one or a plurality of transfer groups composed of one or a plurality of users including at least either a power generation facility or a power storage facility and information showing one or a plurality of demand groups composed of one or a plurality of users including no power generation facility and no power storage facility; performs demand prediction, power generation prediction, and charge/discharge plan creation with respect to the one or the plurality of users belonging to the transfer groups; performs demand prediction with respect to the one or the plurality of users belonging to the demand groups; and, on the basis of a result of adding up each prediction result and charge/discharge plan creation result for each transfer group or each demand group, creates a plan to transfer excess power whose occurrence is predicted in the one or the plurality of transfer groups to the one or the plurality of demand groups.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power management system, a power management method, and a program.

  In a TEMS (Town Energy Management System) or a CEMS (Community Energy Management System) or the like, when there are consumers having solar power generation facilities in a group, the following points are problematic. That is, for example, when the load power is smaller than the generated power of the solar power generation facility, for example, on a sunny day, surplus power may be generated in the generated power of the solar power generation facility. The group is operated by being connected to the power system. In order for the power system to accept natural energy, it is necessary to smooth and stabilize the fluctuating natural energy. Accommodating power within the group in TEMS and CEMS contributes to system stabilization. However, even in this case, surplus power and insufficient power generated in groups become a burden on the system. In order to avoid such a situation, a system for accommodating power between groups has been devised (for example, Patent Document 1).

  In the system described in Patent Document 1, an energy procurement plan is created so that the energy procurement cost is a minimum cost within the group. Furthermore, an energy interchange plan is created so that the energy interchange cost between groups is a minimum cost. Moreover, in patent document 1, it is preferable to set so that each group may become the same economic community which shares the cost and profit of the same company, the same local government, etc.

  Patent Document 2 discloses a system that performs supply and demand adjustment by demand response for each of a plurality of groups. In the system described in Patent Document 2, a group is set for each characteristic and feature of a consumer such as a building, a factory, or a general household.

Japanese Patent No. 3859604 Japanese Patent Laying-Open No. 2015-50860

  By the way, when creating a plan for accommodating power between groups, a demand amount, a power generation amount, and a surplus amount of power are predicted in advance for each consumer in the group. Then, the predicted values for each consumer are aggregated for each group, and a plan for accommodating power between the groups is created based on the aggregation results for each group. That is, the surplus amount and the like are predicted for each customer. Therefore, even when power is accommodated for each group, there is a problem that the processing may take time when a large number of consumers are to be processed.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a power management system, a power management method, and a program capable of efficiently creating a plan for accommodating power among a plurality of groups. To do.

  In order to solve the above-described problem, an embodiment of the present invention is to provide information representing one or more accommodation groups including one or more consumers including at least one of power generation equipment or power storage equipment, and the power generation equipment and power storage equipment. A storage unit storing information representing one or a plurality of demand groups including one or a plurality of consumers not provided with a demand forecast for one or a plurality of the consumers belonging to the accommodation group; Power generation prediction and charge / discharge plan creation are performed, demand prediction is performed for one or a plurality of the customers belonging to the demand group, and each prediction result and the charge / discharge plan creation result are represented as the interchange group or the demand. A plan for accommodating surplus power expected to be generated in one or a plurality of the accommodation groups based on the result of aggregation for each group to one or a plurality of the demand groups A power management system comprising a flexible planning unit to be created.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit recalculates the accommodation group or the demand group for each demand group calculated based on the creation result of the accommodation plan. And re-create the flexible plan.

  Moreover, one aspect of the present invention is the power management system described above, wherein the accommodation planning unit is configured to calculate each prediction, the charge / discharge plan, and the accommodation group or the demand group in units of a predetermined time. And creating a flexible plan.

  One aspect of the present invention is the power management system described above, wherein the configuration of the accommodation group or the demand group is not fixed, and the power generation in the accommodation group or the demand group is performed on or before the previous day, It is changed in units of days before the demand or the surplus is forecasted.

  Moreover, 1 aspect of this invention is said electric power management system, Comprising: The community which accommodates the said accommodation group or the said demand group receives electric power from the same distribution substation.

  Moreover, one aspect of the present invention is the power management system described above, wherein the accommodation planning unit operates within the accommodation group to maximize the independence rate that uses natural energy to the maximum, and to reduce surplus as much as possible. Then, the plan for accommodating is created so that surplus can be accommodated between the accommodation group and the demand group.

  One aspect of the present invention is the power management system described above, in which the accommodation planning unit has a surplus demand when a surplus remains in the prediction of the entire community accommodating the plurality of accommodation groups or the demand groups. Is recalculated to eliminate the allocation mismatch, and the recalculation is repeated until there is no surplus power.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit allocates the surplus power to the demand generated in the demand group, and includes a plurality of the accommodation groups. In the calculation of surplus allocation in the prediction of the entire community to be accommodated, or the calculation in the case where there is no power and there is the demand with high priority, with respect to the time zone of the demand in one or more of the accommodation groups, The charge / discharge plan is created by preferentially discharging from the storage battery provided in the power storage facility.

  Moreover, 1 aspect of this invention is said electric power management system, Comprising: One said accommodation group or the said demand group is comprised with the said consumer with the same consumer attribute.

  One aspect of the present invention is the power management system described above, wherein one accommodation group or the demand group includes a set of consumers connected to the same high-voltage power distribution feeder.

  One embodiment of the present invention is the power management system described above, wherein one regional management server manages a plurality of communities accommodating the plurality of accommodation groups or the demand groups.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the electric power is generated for each demand group. When the charges are different, priority is given to the demand demand of the demand group having a high electricity charge, and discharging is performed from the storage battery provided in the power storage facility of the accommodation group having the lowest charge.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the accommodation group or the demand When the electricity rate is different for each group, the demand demand demand of the accommodation group or the demand group having the lowest electricity rate is prioritized and assigned to the demand of the accommodation group or the demand group having the highest rate.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the supply request demand The electricity charge of the electric power discharged from the storage battery provided in the power storage facility is set higher than the electricity charge in the time zone of the accommodation group that performs the discharge, and the time of the demand group in which the supply demand demand occurs It is set higher than the electricity bill in the belt.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit allocates the surplus power to the demand generated in the demand group, The electricity charge of the electric power charged in the storage battery provided in the electricity storage facility is set higher than the electricity charge in the time zone of the accommodation group that performs the discharge, and the time of the demand group in which the supply demand demand occurs It is set higher than the electricity bill in the belt.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the demand group includes the demand. When the house charge contract is a fixed charge, the surplus power is allocated to the demand with the power exceeding the contracted power by the fixed charge as the demand.

  One aspect of the present invention is the power management system described above, wherein the accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the demand is allocated at the time of allocation. The process of creating the flexible plan is repeated until there is no more.

  Further, according to one aspect of the present invention, the accommodation planning unit includes information representing one or more accommodation groups including one or more consumers including at least one of the power generation equipment and the power storage equipment, and the power generation equipment and the power storage equipment. Demand prediction and power generation for one or a plurality of the consumers belonging to the accommodation group with reference to a storage unit storing information representing one or a plurality of demand groups composed of one or a plurality of consumers not provided Forecasting and charge / discharge planning are performed, demand forecasting is performed for one or a plurality of the customers belonging to the demand group, and each forecasting result and the charging / discharging plan creating result are indicated as the interchange group or the demand group. Create a plan for accommodating surplus power that is expected to be generated in one or more of the accommodation groups based on the result of aggregation for each of the one or more of the demand groups. It is a power management method.

  Further, according to one aspect of the present invention, the accommodation planning unit includes information representing one or more accommodation groups including one or more consumers including at least one of the power generation equipment and the power storage equipment, and the power generation equipment and the power storage equipment. Demand prediction and power generation for one or a plurality of the consumers belonging to the accommodation group with reference to a storage unit storing information representing one or a plurality of demand groups composed of one or a plurality of consumers not provided Forecasting and charge / discharge planning are performed, demand forecasting is performed for one or a plurality of the customers belonging to the demand group, and each forecasting result and the charging / discharging plan creating result are indicated as the interchange group or the demand group. Create a plan for accommodating surplus power that is expected to be generated in one or more of the accommodation groups based on the result of aggregation for each of the one or more of the demand groups. Is a program for executing the processing to the computer.

  According to the present invention, when a consumer is classified in advance into an accommodation group and a demand group and surplus power is calculated, power generation prediction and charge / discharge plan creation are limited to the consumers belonging to the accommodation group. Therefore, resources can be reduced, and a plan for accommodating power among a plurality of groups can be efficiently created.

It is a figure which shows the structural example of the power management system by the 1st Embodiment of this invention. It is a figure which shows the structural example of the power management system by the 2nd Embodiment of this invention. It is a figure which shows the structural example of the power management system by the 3rd Embodiment of this invention. It is a figure which shows the structural example of the connection to the consumer of an electric power distribution line. It is a figure which shows the structural example of the electrical equipment with which the customer facility which belongs to an accommodation group is provided. It is a figure which shows the structural example of the electric equipment with which the customer facility which belongs to a demand group is provided. It is a figure which shows the example of grouping by the 1st Embodiment of this invention. It is a figure which shows the example of grouping by the 4th Embodiment of this invention. It is a figure which shows the plan execution flow of a regional management server. It is a figure which shows the prediction and plan flow of an accommodation group. It is a figure which shows the prediction and plan flow of an accommodation group. It is a figure which shows the prediction and plan flow of an accommodation group. It is a figure which shows the prediction of a demand group, and a plan flow. It is a figure which shows the adjustment flow of a demand amount and a surplus amount. It is a figure which shows the calculation result (plan) of the surplus and deficiency of an accommodation group (1). It is a figure which shows the calculation result (plan) of the surplus and deficiency of an accommodation group (2). It is a figure which shows the example of the calculation result of adjustment with a demand amount and a surplus amount. It is a figure which shows the recalculation result of accommodation group (1). It is a figure which shows the example of the recalculation result of adjustment of a demand amount and a surplus amount. It is a figure which shows the result of the recalculation 2nd time of accommodation group (1). It is a figure which shows the example of establishment of the demand purchase charge in the case of exceeding contract electric power with a fixed charge. It is a figure which shows the structural example of a regional management server. It is a figure which shows the structural example of a subscriber | terminal controller. It is a figure which shows the example of electrical storage equipment information. It is a figure which shows the example of electric power generation equipment information. It is a figure which shows the example of demand equipment information. It is a figure which shows the example of customer information. It is a figure which shows the control mode definition of a storage battery. It is a figure which shows the example of group information.

<First Embodiment>
A configuration example of a power management system 1 according to the first embodiment of the present invention is shown in FIG. The power management system 1 illustrated in FIG. 1 includes a regional management server 100, a plurality of consumers 20-1 to 20-14, a plurality of consumers 30-1 to 30-14, and a wide area network NW. The power management system 1 corresponds to a power management system called TEMS (Town Energy Management System) or CEMS (Community Energy Management System). The power management system 1 manages power demand (consumption), power generation, power storage, and the like in a plurality of consumers in a certain city or region as a whole. The regional management server 100, the plurality of consumers 20-1 to 20-14, and the consumers 30-1 to 30-14 are connected via the wide area network NW and transmit / receive predetermined information. In this case, the area management server 100 is connected to the wide area network NW via the communication line 501. The plurality of consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 are connected to the wide area network NW via the communication line 500.

  In the present application, the consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 refer to facilities managed by a consumer (or contractor) of power receiving supply of grid power. The consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 are one or more (not shown) for processing information used when managing power demand, power generation, power storage, and the like. A computer is included, and the computer has a function of processing predetermined information and transmitting / receiving predetermined information to / from the regional management server 100 and the like.

  The consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 are consumers that the regional management server 100 manages. The consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 consume electric power in units of each facility such as one or a plurality of detached houses and apartment houses, commercial and industrial facilities, and public facilities. It is a facility managed by consumers. The consumers 20-1 to 20-14 indicated by white circles in FIG. 1 are consumers provided with at least one of a power storage facility or a power generation facility. Consumers 30-1 to 30-14 indicated by black circles are consumers that are provided with neither power storage facilities nor power generation facilities.

  The regional management server 100 collects information such as the power supply / demand situation of the grid power, the power supply / demand situation of the consumers 20-1 to 20-14 and 30-1 to 30-14, and the consumers 20-1 to 20-14. Demand forecasting, power generation forecasting, and charge / discharge plan creation, as well as demand forecasting at consumers 30-1 to 30-14. At that time, the regional management server 100 classifies the customers in the region into one or more demand groups and accommodation groups, and executes various calculations for each group.

  The demand group is a group consisting of consumers who have only facilities that consume electric power. That is, the demand group is a group of consumers who do not have the possibility of accommodating the power generated by themselves or the stored output with respect to other consumers. However, the demand group may include a consumer who does not desire the interchange of power to other consumers even though the demand group has facilities for generating or storing power.

  On the other hand, the accommodation group is a group consisting of consumers who have one or both of facilities for generating or storing electric power. In other words, the accommodation group is a group of consumers who have a possibility of being able to accommodate the power generated by themselves or the stored power to other consumers.

  In the example shown in FIG. 1, the consumers 20-1 to 20-13 are classified into the accommodation group (1) 200-1. The customer 20-14 is classified into the accommodation group (2) 200-2. The consumers 30-1 to 30-11 are classified into the demand group (1) 300-1. And consumers 30-12 to 30-14 are classified into demand group (2) 300-2. In the following description, the term “accommodation group” without reference numerals includes the accommodation group (1) 200-1 and the accommodation group (2) 200-2. Similarly, when it is simply referred to as a demand group without a symbol, it includes a demand group (1) 300-1 and a demand group (2) 300-2.

  Next, with reference to FIG. 4, the structural example of the connection of the power distribution line to the consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 shown in FIG. 1 is demonstrated. In the configuration example shown in FIG. 4, all the consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 are supplied with power from one distribution substation 601. The customer 20-14 and the customers 30-12 to 30-14 receive power directly at 6600V from the high-voltage distribution line 700 connected to the output of the distribution substation 601. The pole transformers 611 to 614 are connected to the high-voltage distribution line 700. The consumers 20-1 to 20-4 and the consumers 30-1 to 30-2 receive the output of the distribution substation 601 at 200 V or 100 V via the pole transformer 611 and the low-voltage distribution line 801. The consumers 20-5 to 20-8 receive the output of the distribution substation 601 at 200V or 100V via the pole transformer 612 and the low voltage distribution line 802. The consumers 20-9 to 20-13 receive the output of the distribution substation 601 at 200 V or 100 V via the pole transformer 613 and the low voltage distribution line 803. Then, the consumers 30-3 to 30-11 receive the output of the distribution substation 601 at 200V or 100V via the pole transformer 614 and the low voltage distribution line 804.

  Each facility shown in FIG. 4 has the following specifications, for example. The installed capacity of the distribution substation 601 is about 20 MVA. The capacity of the feeder of the high voltage distribution line 700 is about 2 MVA (6600 V). The customer 20-14 and the customers 30-12 to 30-14 receive power directly from the feeder and convert the voltage with a self-operated transformer. The installed capacity of the pole transformers 611 to 614 is about 100 kVA (200 V). The capacity of the customers 20-1 to 20-13 and the customers 30-1 to 30-11 is about 5 to 20 kVA.

  FIG. 7 shows the classification of the demand groups and the accommodation groups of the customers 20-1 to 20-14 and the customers 30-1 to 30-14 described with reference to FIG. As shown in FIG. 7, in this example, two groups of demand groups and accommodation groups are set.

  That is, among the customers 20-1 to 20-14 belonging to the interchange group, the customer 20 receiving power from the distribution substation 601 via the pole transformers 611, 612 or 613 and the low-voltage distribution lines 801, 802 or 803. -1 to 20-13 belong to the accommodation group (1) 200-1. And the consumer 20-14 which receives electric power via the high voltage distribution line 700 from the distribution substation 601 without going through a pole transformer belongs to the accommodation group (2) 200-2.

  Of the consumers 30-1 to 30-14 belonging to the demand group, the consumers 30-1 to 30-30 receiving power from the distribution substation 601 via the pole transformer 611 or 614 and the low-voltage distribution line 801 or 804. −11 belongs to the demand group (1) 300-1. And the consumers 30-12 to 30-14 which receive power via the high voltage distribution line 700 from the distribution substation 601 without going through a pole transformer belong to the demand group (2) 300-2.

  In the example shown in FIG. 7, power consumption trends are similar in the same group. This grouping is an example of grouping that takes into consideration that the fluctuation of the predicted value within the group is small. For example, the accommodation group (1) 200-1 and the demand group (1) 300-1 are general households, and the accommodation group (2) 200-1 and the demand group (2) 300-2 are establishments. In this example, group (1) is a charge by time zone, group (2) is a flat fee contract, and grouping is performed by a charge system. In addition, power consumption patterns are similar in the group, and the prediction of consumption in the entire group is stable.

  Next, with reference to FIG. 5, the structural example of the electric equipment with which the customers 20-1 to 20-14 which belong to the accommodation group (1) 200-1 or the accommodation group (2) 200-2 shown in FIG. This will be described as an accommodation group consumer electric facility 20A. In addition, the same code | symbol is attached | subjected to the structure which is the same as that of the other figure, or respond | corresponds.

  The accommodation group consumer electric facility 20A shown in FIG. 5 includes a distribution board 91, a power meter 92, a load 93, a power storage facility 94, a power generation facility 95, and a home controller 96. The distribution board 91 is a storage box including a circuit breaker connected to the power meter 92, the load 93, the power storage equipment 94, and the power generation equipment 95. The power meter 92 is a device that measures the power supplied (received) or reversely flowing to and from the distribution network and measures the power by integrating the power, and corresponds to a power meter. The distribution network corresponds to a power receiving end, a distribution board, a transformer facility, and the like connected to the high voltage wiring 700 connected to the distribution substation 601 and the low voltage wirings 801 to 803 shown in FIG. The load 93 includes one or a plurality of devices (hereinafter referred to as power consumption devices) that consume power, such as electric appliances and electrical equipment. The power storage equipment 94 is a device that includes, for example, a secondary battery (storage battery) such as a lithium ion battery, a lead storage battery, or a nickel metal hydride battery, and a device for charging and discharging the secondary battery. The power generation device 95 is a power generation device such as a solar power generation device, a wind power generation device, a hydroelectric power generation device, or a private power generation device.

The accommodation group customer facility 20 </ b> A illustrated in FIG. 5 may include a power meter 97.
The power measuring instrument 97 measures the power for each of the one or more distribution lines connected to the distribution board 91. The in-home controller 96 further communicates with the power meter 97 to collect information on the power supplied from the distribution network and the reverse power flow to the distribution network. The power measuring device 97 outputs the result of measuring the power in the distribution board 91 to the home controller 96. Note that the power meter 97 may measure the amount of power of the power generation equipment 95 and the power storage equipment 94.
Further, the power generation facility 95 may not be provided.

  The in-home controller 96 communicates with the power generation facility 95 and collects information on the power generation amount. The in-home controller 96 communicates with the power storage facility 94 and collects information on the charge amount and the discharge amount. Further, the home controller 96 communicates with the area management server 100 shown in FIG. 1 through the communication network, and transmits the collected information or receives the charge / discharge plan. Here, the communication network corresponds to the communication line 500 and the wide area network NW shown in FIG. Further, the in-home controller 96 instructs the power storage facility 94 based on the received charging / discharging plan and the like to control the charging / discharging by instructing the operation state shown in FIG. FIG. 28 is a diagram illustrating an example of a storage battery control mode definition.

  Home controller 96 transmits the storage battery mode ID (identification information) shown in FIG. 28 to power storage equipment 94 to instruct the operation state of power storage equipment 94. In the example shown in FIG. 28, when the storage battery mode ID is “0”, it is an instruction to “stop” the power storage equipment 94. The case where the storage battery mode ID is “1” is an instruction to “force charge” the power storage equipment 94. The case where the storage battery mode ID is “2” is an instruction to “surplus charge” the power storage equipment 94. The case where the storage battery mode ID is “3” is an instruction to “discharge (possible reverse power flow)” the power storage equipment 94. The case where the storage battery mode ID is “4” is an instruction to cause the power storage facility 94 to perform “reverse power flow limited discharge”. Here, “forced charging” is an operating state in which charging is performed even when power from the grid is used. “Excessive charging” is an operating state in which charging is performed without using power from the grid. “Discharge (possible reverse power flow)” is an operation state in which discharge is performed in a state where reverse power flow to the system is permitted. “Reverse power flow limited discharge” is an operating state in which discharge is performed in a state where reverse power flow to the system is prohibited (or limited to a constant value).

  The in-home controller 96 further communicates with the power meter 92 to collect information on power supplied from the distribution network and reverse power flow to the distribution network.

  Next, with reference to FIG. 6, the structural example of the electric equipment with which the consumers 30-1 to 30-14 which belong to the demand group (1) 300-1 or the demand group (2) 300-2 shown in FIG. The demand group consumer electrical equipment 30A will be described. In FIG. 6, the same or corresponding components as those described with reference to FIG.

  In the demand group consumer electrical facility 30 </ b> A shown in FIG. 6, the home controller 96 can also acquire the power consumption of the load 98. The home controller 96 can also control the load 98. When the surplus power cannot be allocated to the demand in the group and the capacity of the storage battery is insufficient, it can be dealt with by the control for reducing the load.

  Next, a configuration example of the area management server 100 shown in FIG. 1 will be described with reference to FIG. FIG. 1 shows each function, such as an information processing function, a communication function, and a storage function, that the area management server 100 has, divided into blocks. The regional management server 100 includes, for example, a CPU (Central Processing Unit), a storage device, and peripheral devices such as a communication device (not shown), and operates each device by executing a predetermined program on the CPU. Realize each function.

  The area management server 100 illustrated in FIG. 22 includes a reception unit 110, a reception information storage unit 120, an accommodation planning unit 130, a basic information storage unit 140, a transmission information storage unit 150, and a transmission unit 160.

  The receiving unit 110 receives information repeatedly transmitted by the consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 illustrated in FIG. 1 at predetermined time intervals.

  The reception information storage unit 120 stores information received by the reception unit 110 from the consumers 20-1 to 20-14 and the consumers 30-1 to 30-14. In this example, the reception information storage unit 120 includes the generated power 121, the charge amount 122, the discharge amount 123, the remaining storage battery amount 124, the supply power 125, the reverse power flow 126, the power consumption 127, and the surplus power 128. Is stored for each of the consumers 20-1 to 20-14 and the consumers 30-1 to 30-14.

  The generated power 121 is information representing the average power generated every predetermined time (in this example, every hour) generated by the power generation facility 95 described with reference to FIG. The charge amount 122 is information representing the average power for each predetermined time when the storage battery provided in the power storage facility 94 described with reference to FIG. 5 is charged. The discharge amount 123 is information representing the average power per predetermined time that the power storage facility 94 described with reference to FIG. 5 is discharged. The storage battery remaining amount 124 is information representing the average value of the remaining amount of charge of the power storage facility 94 described with reference to FIG. 5 every predetermined time. The storage battery remaining amount 124 is represented by, for example, SOC (State Of Charge). The supplied power 125 is information representing the average power for each predetermined time received from the distribution network (system). The reverse power flow 126 is information representing the average power per predetermined time that is reverse flowed to the distribution network (system). The power consumption 127 is information representing the average power for every predetermined time consumed for charging the power storage equipment 94 described with reference to FIG. The surplus power 128 is information representing a value obtained by subtracting the power consumption 127 from the generated power 121.

  Next, the basic information storage unit 140 stores, for example, facilities or charges registered in advance by a user (customer) or provided from another server, information about the customer, and information indicating a group to which the customer belongs. . In this example, the basic information storage unit 140 stores the power storage facility information 141, the power generation facility information 142, the demand facility information 143, the information indicating the power rate 144, the customer information 145, and the group information 146. It memorize | stores for every -1-20-14 and consumers 30-1-30-30.

  The power storage facility information 141 is information that defines the power storage facility 94 described with reference to FIG. FIG. 24 shows an example of the power storage facility information 141 of one customer. In the example shown in FIG. 24, the storage facility information 141 includes battery capacity (10 kWh), upper limit SOC (100%), lower limit SOC (0%), charge loss (10%), discharge loss (10%), and maximum discharge power. Each item of (3 kW) is included.

The power generation facility information 142 is information that defines the power generation facility 95 described with reference to FIG. FIG. 25 shows an example of the power generation facility information 142 of one consumer. In the example shown in FIG. 25, the power generation facility information 142 is for a solar power generation system, and includes inverter capacity (6 kW), conversion efficiency (15%), power generation area (20 m ² ), longitude, latitude, and installation angle. Contains items.

  The demand facility information 143 is information that defines the load 93, the load 98, and the like described with reference to FIG. FIG. 26 shows an example of demand facility information 143 of one customer. In the example shown in FIG. 26, the demand facility information 143 is information (types of air conditioners, electric water heaters, IH heaters, microwave ovens, washing machines, vacuum cleaners) indicating types of electric products included in the loads 93 or 98. And information indicating specifications such as power consumption of each electric product not shown.

  The power rate 144 is information that is a basis for calculating the electricity rate, and includes information indicating, for example, a basis for calculating the basic rate and a basis for calculating the energy charge. In addition, the power charge 144 includes information indicating a calculation basis for each time slot when the charge varies depending on the time slot.

  The customer information 145 is information that defines each customer. FIG. 27 shows an example of customer information 145 of one customer. In the example shown in FIG. 27, the customer information 145 includes items of customer ID (identification information), position information, facility information, and incidental information.

  The group information 146 is information representing identification information of a group to which each customer belongs. An example of the group information 146 is shown in FIG. In the example shown in FIG. 29, the group information 146 includes the customer IDs of the customers 20-1 to 20-14 and the customers 30-1 to 30-14 (in this case, the customer IDs are 20-1 to 20- 14 and 30-1 to 30-14) and the group name to which it belongs. The group information 146 is created by the accommodation planning unit 130 based on an instruction from an administrator or the like, for example, and can be arbitrarily (dynamically) changed according to a predetermined rule.

  In FIG. 22, the accommodation planning unit 130 plans based on the information stored in the received information storage unit 120 and the information stored in the basic information storage unit 140 according to the flow of FIGS. 9 to 14 described later. Stand-by, power generation prediction, demand prediction and storage battery charge / discharge information (that is, charge / discharge plan) are formulated for each consumer 20-1 to 20-14 belonging to the interchange group, and the demand prediction is the customer 30 belonging to the demand group. Formulated for each of -1 to 30-14 and stored in the transmission information storage unit 150. However, a power generation prediction is not created for a consumer who does not have the power generation facility 95, and a charge / discharge plan is not formulated for a consumer who does not have the power storage facility 94.

  Next, the transmission information storage unit 150 stores each piece of information created by the accommodation planning unit 130. In this example, the transmission information storage unit 150 transmits the plan information 151, the information indicating the power generation prediction 152, and the information indicating the demand prediction 153 to the consumers 20-1 to 20-14 and the consumers 30-1 to 30-. Remember every 14th. However, information that is not created by the accommodation planning unit 130 is not stored depending on the customer.

  The power generation prediction 152 is information indicating the generated power for each predetermined time (in this example, every hour) of the power generation facility 95 calculated in advance. Further, the demand prediction 153 is information indicating power that is expected to be consumed at predetermined time intervals in the consumer. The accommodation planning unit 130 calculates the power generation prediction 152 based on, for example, the solar radiation information and the power generation facility information 142 acquired in advance. For example, the accommodation planning unit 130 calculates the power consumed in each consumer at predetermined time intervals in the past week, and calculates the average value of the calculated power as the demand prediction 153.

  The accommodation planning unit 130 derives a charge / discharge plan for each of the consumers 20-1 to 20-14 based on the power rate 144, the power generation prediction 152, and the demand prediction 153. The charge / discharge plan is determined for each predetermined time whether the power storage equipment 94 is charged, discharged, or stopped. The accommodation planning unit 130 controls, for example, the load 98 and consumes power when there is a request from a power information provider such as a power provider or a power company for an increase or decrease in demand power used by a consumer. Can be created as a demand plan indicating an instruction to increase or decrease at a predetermined time. In the present embodiment, the plan information 151 is information representing future instructions regarding power charging / discharging, demand, and power generation, and is created for each predetermined time and for each customer. Below, the content of the plan information 151 may be called a plan. The plan information 151 can include a charge / discharge plan and a demand plan.

  Next, the transmission unit 160 uses part or all of the plan information 151, the power generation prediction 152, and the demand prediction 153 of each customer stored in the transmission information storage unit 150 as distribution information, for example, the accommodation group (1). It is distributed to the customers 20-1 to 20-14 belonging to 200-1 or the accommodation group (2) 200-2. The distribution information transmitted by the transmission unit 160 is received by the in-home controller 96 described with reference to FIG. Then, the power storage equipment 94 and the like are controlled based on the distribution information received by the home controller 96.

  Next, a configuration example of the home controller 96 described with reference to FIG. 5 and the like will be described with reference to FIG.

  FIG. 23 is a diagram illustrating a configuration of a home controller 96A that is an example of the home controller 96 described with reference to FIG. 5 and the like. 23 includes a communication interface (1) 961, a transmission / reception unit (1) 962, a control unit 963, a transmission / reception unit (2) 964, a communication interface (2) 965, and a data memory 966. And an internal bus IB. The transmission / reception unit (1) 962, the control unit 963, the transmission / reception unit (2) 964, and the data memory 966 are communicably connected via the internal bus IB. The data memory 966 includes storage devices such as RAM (Random Access Memory), flash memory, and HDD (Hard Disk Drive).

  The communication interface (1) 961 is an interface for communicating with the area management server 100 via the wide area network NW shown in FIG. The communication interface (2) 965 is an interface for communicating with the equipment in the customer via the home network. The communication interface (2) 965 is connected to a user interface such as a touch panel that includes both an input unit that receives user input and a display unit that displays various types of information to the user.

  The transmission / reception unit (1) 962 transmits / receives various information to / from the regional management server 100 via the communication interface (1) 961. The transmission / reception unit (2) 964 transmits / receives various information to / from the equipment in the customer via the communication interface (2) 965. Further, the transmission / reception unit (1) 962 and the transmission / reception unit (2) 964 store the received information in the data memory 966. These transmission / reception units may be integrated functional units having both functions.

  The control unit 963 controls the equipment in the customer based on the information received by the transmission / reception unit (1) 962 and the transmission / reception unit (2) 964, or collects information collected from the equipment in the consumer. To 100.

  The in-home controller 96A may further include a power collection unit 967. The power collecting unit 967 receives the information measured by the power measuring device 97 described with reference to FIG. 5 and the like, and stores the received information in the data memory 966 via the internal bus IB, or sends it to the control unit 963. Or provide.

  Hereinafter, an operation example of the area management server 100 illustrated in FIG. 1 will be described with reference to the flowcharts illustrated in FIGS. In this operation example, it is assumed that the consumers 20-1 to 20-14 belonging to the accommodation group have a photovoltaic power generation system as the power generation facility 95.

  FIG. 9 is a flowchart showing a flow of processing executed when the area management server 100 creates one plan. In this operation example, the area management server 100 creates a new plan every 24 hours, for example. In this case, the process shown in FIG. 9 is newly started every 24 hours. In addition, the area management server 100 adjusts the contents of the plan sequentially when adjustments are necessary due to changes in weather conditions, changes in charges, and the like. For example, the area management server 100 creates a plan from 13:00 on the previous day to 14:00 on the current day at 13:00 on the day before the planned date. The regional management server 100 shifts the plan from the current plan to the new plan when a new plan is created. Note that a plurality of processes shown in FIG. 9 can be executed simultaneously.

  That is, the area management server 100 starts the process shown in FIG. 9 at a predetermined time of the previous day, for example, at 13:00, creates a new plan, or starts a process for determining whether adjustment is necessary. When the process shown in FIG. 9 is started, the accommodation planning unit 130 first creates a prediction plan for an accommodation group (step S101). Details of step S101 will be described later with reference to FIGS.

  Next, the accommodation planning unit 130 creates a demand group prediction plan (step S102). Details of step S102 will be described later with reference to FIG.

  Next, the accommodation planning unit 130 determines whether the plan needs to be adjusted (step S103). When a predetermined event such as a change in weather conditions or a change in a fee occurs, or when the determination process of step S103 is performed for the first time after executing the process of step S101 and the process of step S102, the accommodation plan unit 130 adjusts the plan. Is determined to be necessary (step S103: Yes). On the other hand, when the predetermined event has not occurred, the accommodation planning unit 130 determines that the adjustment of the plan is not necessary (step S103: No). When it is determined that the adjustment of the plan is not necessary (step S103: No), the accommodation planning unit 130 repeatedly executes the determination process of step S103 at a predetermined time interval.

  When it is determined in step S103 that the plan needs to be adjusted (step S103: Yes), the accommodation planning unit 130 creates an adjustment plan for the demand amount and the surplus amount (step S104). Details of step S104 will be described later with reference to FIG.

  Next, the accommodation plan unit 130 distributes the created plan to the consumers 20-1 to 20-14 belonging to the accommodation group (step S105).

  Next, the accommodation planning unit 130 determines whether or not the created plan execution has been completed, that is, whether or not the period of the plan has been completed (step S106). If completed (step S106: Yes), the accommodation planning unit 130 ends the process shown in FIG. If not completed (step S106: No), the accommodation planning unit 130 determines whether there is a new plan (step S107). If there is a new plan (step S107: Yes), the accommodation planning unit 130 ends the process shown in FIG. When there is no new plan (step S107: No), the accommodation planning unit 130 returns to step S103 and determines whether or not the plan needs to be adjusted (step S103).

  Next, with reference to FIGS. 10 to 12, details of the processing in step S <b> 101 of FIG. 9, i.e., details of the accommodation group prediction plan will be described. FIG. 10 is a flowchart showing the processing called in step S101 of FIG. FIG. 11 is a flowchart showing the processing called in step S205 of FIG. FIG. 12 is a flowchart showing the process called in step S201 of FIG.

  When the accommodation planning unit 130 calls the processing of the forecasting plan of the accommodation group shown in FIG. 10 in step S101 of FIG. 9, first, the power generation amount, demand amount, surplus amount, and deficit amount per unit time for each consumer. Is executed (step S201). In step S201, the accommodation planning unit 130 calls the process illustrated in FIG.

  In the process shown in FIG. 12, the accommodation planning unit 130 refers to the customer information 145 and the group information 146 stored in the basic information storage unit 140, and obtains the customer IDs of all the accommodation groups from the basic information storage unit 140. Read (step S401). Next, the accommodation planning unit 130 determines whether or not the processing of steps S403 to S405 has been completed for all customers (step S402). When it is determined that the processing of all the consumers has not been completed (step S402: No), the accommodation planning unit 130 generates a power generation prediction (step S403) and a demand prediction (step S404) for each of the consumers 20-1 to 20-14. ) And surplus prediction (step S405).

  In the process of power generation prediction (step S403), the accommodation planning unit 130 executes the following processes. (1) The accommodation planning unit 130 first acquires solar radiation data. The solar radiation data is a predicted value of the solar radiation amount for each hour. The accommodation planning unit 130 acquires, for example, information indicating the sunshine hours of the weather forecast, obtains the amount of solar radiation for each planned day based on the position information of the customer included in the customer information 145, and associates it with the customer. Is stored in a predetermined storage unit. (2) Next, the accommodation planning unit 130 reads out the power generation facility information 142 of the customer from the basic information storage unit 140. (3) Then, the accommodation planning unit 130 predicts the amount of power generation per hour based on the solar radiation data acquired in (1) and the power generation facility information 142 read out in (2), and generates power in association with the consumer. The transmission 152 is stored in the transmission information storage unit 150 as the prediction 152, and the power generation prediction (step S403) processing is terminated.

  Moreover, in the process of demand prediction (step S404), the accommodation planning unit 130 executes the following processes. (1) The accommodation planning unit 130 first reads past demand data of the consumer from information indicating the power consumption 127 of the reception information storage unit 120. The demand data is information representing the amount of power consumption per unit time associated with the date and time. (2) Then, the accommodation planning unit 130 predicts the demand amount for each hour based on the demand data read in (1) and the weather forecast information of the planning period, and the demand forecast 153 in association with the consumer. Is stored in the transmission information storage unit 150, and the demand prediction (step S404) processing is terminated.

  Then, in the process of surplus prediction (step S405), the accommodation planning unit 130 executes the following processes. (1) The accommodation planning unit 130 first calculates the difference between the power generation amount prediction for each time zone calculated in step S403 of the consumer and the demand amount prediction for each time zone calculated in step S404. (2) Next, the accommodation planning unit 130 determines whether the power generation amount prediction is larger than the demand amount prediction for each time period. When the power generation amount prediction is larger than the demand amount prediction, the interchange planning unit 130 stores the value of the difference obtained in (1) as a surplus amount in a predetermined storage unit, and ends the surplus prediction (step S405). In this case, the accommodation planning unit 130 sets the shortage amount for the time period to 0. On the other hand, when the power generation amount prediction is not larger than the demand amount prediction, the accommodation planning unit 130 stores the difference value obtained in (1) as a shortage amount in a predetermined storage unit, and performs the process of surplus prediction (step S405). finish. In this case, the accommodation planning unit 130 sets the surplus amount in the time period to 0. Note that the process (2) is executed for the entire time for each time slot.

  On the other hand, in the process illustrated in FIG. 12, the accommodation planning unit 130 ends the process illustrated in FIG. 12 when it is determined in the determination process in step S402 that all the consumers have been processed (step S402: Yes). . Here, the process of step S201 shown in FIG.

  Next, the accommodation planning unit 130 refers to the customer information 145 and the group information 146 in the basic information storage unit 140, and acquires the customer ID of the customer included in each group for each group (step S202 in FIG. 10). ).

  Next, the accommodation planning unit 130 determines whether or not the calculation of all groups has been completed, that is, whether or not the processing in step S204 and the processing in step S205 have been completed for all groups (step S203). When the calculation for all the groups has not been completed (step S203: No), the accommodation planning unit 130 calculates the power generation amount, the demand amount, the surplus amount, and the deficiency amount per unit time for each consumer of the consumers in the group. Aggregate (step S204). In the example of the customers and grouping shown in FIG. 1, the accommodation planning unit 130 generates power and demand per unit time of all the customers 20-1 to 20-13 in the accommodation group (1) 200-1. The amount, surplus amount, and shortage amount are totaled to obtain the total result of the accommodation group (1) 200-1, and the power generation amount per unit time of the customer 20-14 in the accommodation group (2) 200-2, The demand amount, the surplus amount, and the shortage amount are set as the aggregated result of the accommodation group (2) 200-2.

  Next, the accommodation plan part 130 performs the process which creates the charging / discharging plan of a storage battery (step S205). In step S205, the accommodation planning unit 130 calls the process illustrated in FIG. FIG. 11 shows the storage battery charge / discharge plan creation process called in step S205 of FIG. The storage battery charging / discharging plan creation processing in FIG. 11 is executed based on the total result, that is, the total value of the power generation amount, the demand amount, the surplus amount, and the shortage amount of each group in step S204 in FIG. Is done.

  In the process shown in FIG. 11, the accommodation planning unit 130 first sets the target charging power of the storage battery as the remaining amount of the previous day (step S301). That is, in step S301, the accommodation planning unit 130 sets the night charge amount to 0 as an initial value.

  Next, the accommodation planning unit 130 reduces the surplus power by allocating the surplus power to the charging of the storage battery until the storage battery is fully charged for each time period (step S302).

  Next, the accommodation planning unit 130 determines whether or not the total demand amount is larger than the storage battery capacity (that is, the storage battery storage amount or the remaining capacity) (step S303). When the total demand is larger than the storage battery capacity (step S303: Yes), the accommodation planning unit 130 sets a plan so that the storage battery capacity is allocated and discharged in the maximum electricity rate level time zone (step S304).

  Next, in FIG. 11, the accommodation planning unit 130 determines whether or not there is a surplus in the storage battery capacity (step S305). When there is a surplus in the storage battery capacity (step S305: Yes), the accommodation planning unit 130 sets a plan so as to allocate the discharge to the time zone of the next lower level (step S306). Next, the accommodation planning unit 130 determines whether or not the discharge has been assigned to all the time zones (step S307). If not assigned to all time zones (step S307: No), the accommodation planning unit 130 executes the determination process of step S305 (step S305).

  On the other hand, when the total demand is not larger than the storage battery capacity (step S303: No), the accommodation planning unit 130 sets a plan so that the storage battery capacity is allocated and discharged in all time zones (step S309).

  If it is determined in step S305 that there is no remaining storage battery capacity (step S305: No), if discharge is assigned to all time zones in step S307 (step S305: Yes), or the process of step S309 is completed. In this case, the accommodation planning unit 130 creates a night charge plan (step S308). The night charge plan is a charge plan for a storage battery using power with the lowest nighttime charge level. The nighttime charge amount plan can be set according to, for example, the content of the discharge plan from the storage battery, the presence / absence or amount of demand power increase request or decrease request.

  Next, the accommodation plan part 130 performs the process which allocates the determined plan to the storage battery with which each power storage equipment 94 of the consumers 20-1 to 20-14 is equipped (step S301). Here, the process of FIG. 11 is terminated, and the process of step S205 illustrated in FIG. 10 is terminated.

  Next, an example of creating the accommodation group prediction plan in step S101 of FIG. 9 will be described with reference to FIG. 15 and FIG. FIG. 15 shows a plan created for the accommodation group (1) 200-1. FIG. 16 shows a plan created for the accommodation group (2) 200-2.

  FIG. 15 shows an example of the processing result of step S101 of FIG. 9 for the accommodation group (1) 200-1. FIG. 15 shows the calculation results of the power generation amount, demand amount, discharge amount, charge amount, shortage amount, demand, and remaining capacity of the interchange group (1) 200-1 every hour for 24 hours on the planned date. Here, the demand means the amount of electric power supplied to other consumers or the amount of electric power demand received from other consumers. Each value of power generation amount, demand amount, discharge amount, charge amount, shortage amount, and demand is an average value for one hour, and the unit is kW. The remaining capacity is an average value for one hour of the percentage of the charged amount with respect to the rated capacity. However, the time change of the remaining capacity shown at the top of FIG. 15 is for showing the tendency of the remaining capacity to change with time so that the value of 0 minutes at each time coincides with the average value of the remaining capacity. A broken line is drawn. Therefore, values other than 0 minutes at each time do not necessarily match the predicted values.

  In FIG. 15, for example, predicted values or planned values from 0:00 to 0:00 are as follows. The predicted power generation amount is 0 kW. The predicted value of the demand amount is 10 kW. The planned value of the discharge amount is 0 kW. The planned charge amount is 0 kW. The predicted value of the deficiency is 10 kW. The predicted value of the surplus amount is 0 kW. The demand is 0 kW. The predicted value of the remaining capacity is 0%. Further, for example, the predicted values or planned values from 14:00 to 15:00 are as follows. The predicted value of power generation is 50 kW. The predicted value of the demand amount is 15 kW. The planned value of the discharge amount is 0 kW. The planned amount of charge is 20 kW. The predicted value of the shortage is 0 kW. The predicted value of the surplus amount is 15 kW. The demand is 0 kW. The predicted value of the remaining capacity is 80%.

  FIG. 16 shows an example of the processing result of step S101 of FIG. 9 for the accommodation group (2) 200-2. FIG. 16 shows calculation results of the power generation amount, demand amount, discharge amount, charge amount, shortage amount, demand, and remaining capacity of the interchange group (2) 200-2 every hour for 24 hours on the planned date. In FIG. 16, each value of power generation amount, demand amount, discharge amount, charge amount, shortage amount, and demand is an average value for one hour, and the unit is kW. The remaining capacity is an average value for one hour of the percentage of the charged amount with respect to the rated capacity. However, the time change of the remaining capacity shown at the top of FIG. 16 is for showing the tendency of the remaining capacity to change with time so that the value of 0 minutes at each time coincides with the average value of the remaining capacity. A broken line is drawn. Therefore, values other than 0 minutes at each time do not necessarily match the predicted values.

  In FIG. 16, for example, predicted values or planned values from 0:00 to 0:00 are as follows. The predicted power generation amount is 0 kW. The predicted value of the demand amount is 50 kW. The planned value of the discharge amount is 0 kW. The planned charge amount is 0 kW. The predicted value of the shortage is 50 kW. The predicted value of the surplus amount is 0 kW. The demand is 0 kW. The predicted value of the remaining capacity is 0%. Further, for example, the predicted values or planned values from 14:00 to 15:00 are as follows. The predicted value of power generation is 50 kW. The predicted value of the demand amount is 95 kW. The planned value of the discharge amount is 0 kW. The planned charge amount is 0 kW. The predicted value of the shortage is 45 kW. The predicted value of the surplus amount is 0 kW. The demand is 0 kW. The predicted value of the remaining capacity is 65%.

  Next, details of the processing in step S102 of FIG. 9, that is, details of the demand group prediction plan will be described with reference to FIG. FIG. 13 is a flowchart showing the process called in step S102 of FIG.

  When the accommodation planning unit 130 calls the demand group prediction plan process shown in FIG. 13 in step S102 of FIG. 9, first, the customer information 145 and the group information 146 stored in the basic information storage unit 140 are obtained. The customer IDs of all demand groups are read out from the basic information storage unit 140 (step S801). Next, the accommodation planning unit 130 determines whether or not the processing in steps S803 to S804 has been completed for all customers (step S802). When it is determined that the processing for all the consumers has not been completed (step S802: No), the accommodation planning unit 130 receives the past demand data of the customer for each of the consumers 30-1 to 30-14 and stores the received information. Read from the information indicating the power consumption 127 of the unit 120 (step S803). Next, the accommodation planning unit 130 predicts the demand amount for each hour based on the demand data read in step S803 and the weather forecast information for the planned period, and stores the transmission information as a demand forecast 153 in association with the consumer. The information is stored in the unit 150 (step S804). Next, the accommodation planning unit 130 executes the determination process in step S802 (step S802).

  On the other hand, when it is determined that the processing for all the consumers is completed (step S802: Yes), the accommodation planning unit 130 refers to the customer information 145 and the group information 146 in the basic information storage unit 140, and each group The customer ID of the customer included in the group is acquired (step S805). Next, the accommodation planning unit 130 determines whether or not the calculation for all groups has been completed, that is, whether or not the processing in step S807 has been completed for all groups (step S806). When the calculation for all the groups has not been completed (step S806: No), the accommodation planning unit 130 totals the demand amount per unit time for each consumer of the customers in the group (step S807). In the example illustrated in FIG. 1, the accommodation planning unit 130 aggregates the demand amounts per unit time of all the consumers 30-1 to 30-11 in the demand group (1) 300-1 to obtain the demand group (1 ) The aggregated result of 300-1 and the aggregated demand per unit time of the consumers 30-12 to 30-14 in the demand group (2) 300-2 are aggregated for the demand group (2) 300-2. Assume the total result.

  On the other hand, if it is determined in step S806 that all groups have been processed (step S806: Yes), the accommodation planning unit 130 sets power exceeding the contracted power as a supply request demand (step S808). When the process of step S808 ends, the accommodation planning unit 130 ends the process shown in FIG. Here, the process of step S102 shown in FIG. 9 ends.

  Next, details of the processing in step S104 of FIG. 9, that is, details of the adjustment plan between the demand amount and the surplus amount will be described with reference to FIG. FIG. 14 is a flowchart showing the process called in step S104 of FIG. In step S104 in FIG. 9, the accommodation planning unit 130 recalculates and corrects the tabulation result for each group based on the processing result shown in FIG. 14, and repeats the processing in FIG. Run.

  In the process shown in FIG. 14, the accommodation planning unit 130 first aggregates the demand amount for each time unit for each charge level (step S901). Next, the accommodation planning unit 130 totals the surplus amount for each time unit for each charge level (step S902). Next, the accommodation planning unit 130 reads the unprocessed demand for the highest charge (step S903). Next, the accommodation planning unit 130 determines whether or not all surplus power allocation processing for each unit time (that is, processing in step S905) has been completed (step S904).

  If all surplus power allocation processing for each unit time has not been completed (step S904: No), the accommodation planning unit 130 allocates demand power (that is, power requested to be supplied) in a time zone with surplus power. (Step S905). Details of the processing in step S905 will be described later. Next, the accommodation planning unit 130 reads an unprocessed demand that is higher than the price of surplus power (step S906), and then performs the determination process of step S904 (step S904).

  On the other hand, when the allocation process for every unit time of all surplus power is completed (step S904: Yes), the accommodation planning unit 130 determines whether the allocation of the unprocessed maximum charge demand is completed (step S904). S907). If the allocation of the demand for the unprocessed maximum charge has not been completed (step S907: No), the accommodation planning unit 130 determines whether or not there is a storage capacity in the corresponding time zone (step S908). When there is a storage capacity in the corresponding time zone (step S908: Yes), the accommodation planning unit 130 allocates the storage battery capacity to the demand (step S909). The accommodation planning unit 130 performs the determination process of step S907 after the process of step S909 (step S907).

  On the other hand, when the allocation of the unprocessed maximum charge demand has been completed in the determination process of step S907 (step S907: Yes), or when there is no storage capacity in the corresponding time zone in the determination process of step S908 ( Step S907: No), the accommodation planning unit 130 ends the process shown in FIG. Here, the process of step S104 shown in FIG. 9 ends.

  Next, referring to FIGS. 17 to 21, in the process of step S <b> 905 of FIG. 14, the accommodation planning unit 130 performs the accommodation group (1) 200-1 and the accommodation group (2) 200 shown in FIGS. 15 and 16. An example in which surplus power predicted to be generated at -2 is allocated to the demand of the demand group will be described. FIG. 17 shows an example of the calculation result of the adjustment between the demand amount and the surplus amount.

  In FIG. 17, the surplus amount 3101 and the remaining capacity 3108 correspond to the surplus amount and the remaining capacity of the accommodation group (1) 200-1 illustrated in FIG. As shown in FIG. 16, the surplus amount of the accommodation group (2) 200-2 is 0 in all time zones. The demand (9) 3102 corresponds to the demand of the demand group (2) 300-2. The demand (1) 3105 corresponds to the demand of the demand group (1) 300-1. In this example, it is assumed that demand (3) 3103 and demand (2) 3104 exist in addition to them. The remaining capacity 3107 corresponds to the remaining capacity of the accommodation group (2) 200-2 shown in FIG. In this example, since only surplus power of the accommodation group (1) 200-1 is to be allocated, the remaining capacity total 3109 is set as the remaining capacity 3108 of the accommodation group (1) 200-1. However, the storage capacity of an accommodation group with no surplus power can also be assigned.

  In the example shown in FIG. 17, it is assumed that demand (9) 3102 which is a demand for supply of demand group (2) 300-2 is the demand with the highest charge. In this case, as described above, the demand group (2) 300-2 is a flat fee contract, and the demand (9) 3102 is a demand when exceeding the contract power amount. For the demand group (2) 300-2, the demand fee is set to be higher than other fees in the community according to the rules shown in FIG. 21, for example. Therefore, demand (9) 3102 is the highest priority demand. In this embodiment, the community means a region or community that is managed by the region management server 100, and a plurality of groups that are managed by the region management server 100 are located in the region or belong to the community. Yes. In the process of step S905 in FIG. 14, the surplus amount of the accommodation group is allocated to a demand with high priority. Further, in the example shown in FIG. 17, it is assumed that a priority corresponding to a charge (or contract content) is set for each demand. In this example, the demand (9) 3102 has the highest priority, and the demand (3) 3103, then the demand (2) 3104, and then the demand (1) 3105 are determined. In this case, the number in parentheses represents the size of the charge level, and the priority of the demand with the higher level is higher.

  In the example shown in FIG. 17, the surplus time zone is from 14:00 to 17:00 shown in bold lines in the surplus power 3101. On the other hand, the demand (9) 3102 is a demand time zone from 13:00 to 20:00 indicated by a bold line. That is, the surplus time zone and the demand time zone do not match. In such a case, in the processing of step S905 in FIG.

  (1) High priority demand

  (2) Demand close to the surplus generation time zone (forward priority)

  In this example, it is determined that all surplus power is allocated. That is, all of the surplus power total value 55 kW in the surplus time period from 14:00 to 17:00 is allocated. At that time, if the surplus power time zone and the demand time zone do not match, the time zone shift is compensated by using charging / discharging of the storage battery. That is, with the result of recalculation in step S905 of FIG. 14, the allocation process to the storage battery in step S909 is continued. In this example, when there is no surplus destination in the group, the purchased power from the system is reduced and the processing is performed as if the most expensive power was covered during that time period.

  In the example shown in FIG. 17, the surplus power is shown in the demand (9) 3102 between the power from 13:00:00 shown by the thick line and the demand (3) 3103 in the thick line. Power from 13:00 to 14:00. In this case, the determined total demand 3106 is 25 kW, 5 kW, 5 kW, 5 kW, 5 kW, 5 kW, 5 kW, and 5 kW in each time zone from 13:00 to 20:00 indicated by being surrounded by a thick line.

  Further, in step S104 of FIG. 9 in which the process of FIG. 14 is called, the accommodation plan unit 130 recalculates and modifies the accommodation group plan (that is, the total result for each group) based on the demand allocation result. FIG. 18 shows the result of recalculation of the plan for the accommodation group (1) 200-1. FIG. 18 shows the result of re-planning by assigning the total demand determined in FIG. 17 to the surplus power with respect to the calculation result of the plan shown in the accommodation group (1) 200-1 shown in FIG. As shown in FIG. 18, in the re-planning, the accommodation planning unit 130 recalculates that the consumption is included including the demand amount in addition to the demand in the accommodation group (1) 200-1. As shown in FIG. 18, as a result, the discharge plan of the storage battery is changed, and the time zone and the amount of surplus change.

  As described above, when power is interchanged between consumers, the time zone in which power is desired to be supplied may not match the time zone in which surplus power is generated. In such a case, for example, a time zone shift can be absorbed by charging and discharging power using a power storage facility. However, when a power storage facility is used, the predicted value of the surplus amount that assumes interchangeability may differ from the predicted value of the surplus amount that does not assume the assumption. This is because, for example, the amount of surplus and the generation time zone change due to the change of the time zone for charging the power storage equipment. In such a case, it is necessary to recalculate the predicted value on the assumption that it is flexible as necessary.

  At this time, since surplus power is still generated in the time zone from 15:00 to 16:00 indicated by the bold line, the accommodation plan unit 130 calls the process of FIG. 14 again and assigns the second allocation. Process.

  FIG. 19 shows the result of the second allocation process. Since the surplus amount at this time is 15 kw, the accommodation planning unit 130 allocates this to the demand (3) of the maximum level among the remaining demands. In the first recalculation result shown in FIG. 18, surpluses appear at 15:00 and 16:00. Further, as shown in FIG. 19, the highest charge level of demand is 3, and the closest time zone is 20 kW at 12:00 (that is, the time zone from 12:00 to 13:00). Since the surplus is 15 kW, the demand of 15 kW is accepted.

  After the second allocation process, in step S104 of FIG. 9, the accommodation planning unit 130 recalculates and modifies the accommodation group plan based on the second allocation result of demand. FIG. 20 shows the second recalculation result of the accommodation group (1) 200-1. FIG. 20 is a result of recalculation assuming that the total demand added to the first calculation result determined in FIG. 17 in addition to the second demand recalculation result shown in FIG. 19 is consumed in addition to the demand in the group. Indicates. In the example shown in FIG. 20, as a result, the amount of charge in the 12:00 time zone is reduced, the surplus power is eliminated, and the adjustment is completed. Thus, the accommodation planning unit 130 ends the calculation in step S104 of FIG. 9 and completes the charging / discharging plan in the group. The accommodation planning unit 130 transmits the discharge and charge plans that have been calculated to the target home controller 96 (step S105 in FIG. 9). On the other hand, the home controller 96 changes the control mode at a determined time. An example of the control mode has been described above with reference to FIG.

  In the above description, the time unit is 1 hour, but it may be, for example, 30 minutes or 10 minutes. Moreover, although the timing of the plan is adjusted as needed on a daily basis, it may be shorter, for example, twice a day.

  As described above, in the present embodiment, the accommodation planning unit 130 includes one or more accommodation groups including one or more consumers 20-1 to 20-14 including at least one of the power generation equipment 95 and the power storage equipment 94. Information indicating one or a plurality of demand groups including one or a plurality of consumers 30-1 to 30-14 that are not provided with the power generation facility 95 or the power storage facility 94, and the customer information 145 and the group. Referring to the basic information storage unit 140 stored in combination with the information 146, the demand prediction, power generation prediction, and charge / discharge plan creation are performed for one or a plurality of consumers 20-1 to 20-14 belonging to the accommodation group. , Make a demand forecast for one or more consumers 30-1 to 30-2 belonging to the demand group, and use each forecast result and charge / discharge plan creation result as an interchange group or demand To create a plan to interchange the surplus power generated is predicted at 1 or more flexible groups based on the result of the aggregation per group in one or more of demand groups. According to this configuration, when the consumers 20-1 to 20-14 and the consumers 30-1 to 30-14 are classified into the accommodation group and the demand group in advance and the surplus power is calculated, the power generation prediction and charging are performed. The discharge plan creation is limited to the customers 20-1 to 20-14 belonging to the accommodation group. Therefore, it is possible to reduce the number of program steps and the required memory area compared to the case where power generation prediction and charge / discharge planning are basically executed for all groups. Becomes easy. That is, resources can be reduced, and a plan for accommodating power among a plurality of groups can be efficiently created.

  Further, in the present embodiment, the accommodation planning unit 130 generates a surplus power accommodation plan (that is, a plan for allocating surplus power to demand) based on a result of calculating the surplus power calculated again based on a result of creating a plan for accommodating surplus power. ) Again. According to this configuration, the plan creation accuracy can be easily increased.

  Further, in the present embodiment, the accommodation planning unit 130 generates a power generation prediction, a demand prediction, a charge / discharge plan, a total for each accommodation group or demand group, and a plan for accommodating surplus power, with a predetermined time as a unit. I do. According to this configuration, it is possible to easily recognize the difference between the surplus power time zone and the demand time zone, and it is possible to accurately perform adjustment using charging / discharging of the power storage equipment.

<Second Embodiment>
An example of the configuration of a power management system 1A according to the second embodiment of the present invention is shown in FIG. The power management system 1A shown in FIG. 2 includes a regional management server 100, a power information provider 400, a plurality of consumers 20-1 to 20-14, a plurality of consumers 30-1 to 30-14, a wide area A network NW. In FIG. 2, the same reference numerals are given to the components corresponding to those shown in FIG. In this case, the area management server 100 is connected to the wide area network NW via the communication line 501 and is connected to the power information provider 400 via the communication line 503. The power information provider 400 is connected to the wide area network NW via the communication line 502.

  In the power management system 1A shown in FIG. 2, the information transmission path is different from that of the power management system 1 of the first embodiment shown in FIG. However, the basic operation is the same. The power information provider 400 represents the generated power 121, the charge amount 122, the discharge amount 123, the storage battery remaining amount 124, the supply power 125, the reverse power flow 126, the power consumption 127, the surplus power 128, etc. described with reference to FIG. Information is received from consumers 20-1 to 20-14 and consumers 30-1 to 30-14. The power information provider 400 provides the received information to the regional management server 100.

  In the power management system 1 </ b> A shown in FIG. 2, power information is received by the power information provider 400 instead of the area management server 100 and provided to the area management server 100. The regional management server 100 performs planned distribution and control to the storage battery.

<Third Embodiment>
FIG. 3 shows a configuration example of a power management system 1B according to the third embodiment of the present invention. The power management system 1B illustrated in FIG. 3 includes a regional management server 100, a power information provider 400, a plurality of consumers 20-1 to 20-14, a plurality of consumers 30-1 to 30-14, a wide area A network NW. In FIG. 3, components corresponding to those shown in FIG. 2 are given the same reference numerals. Compared with the power management system 1A shown in FIG. 2, the power management system 1B shown in FIG. 3 excludes the communication line 501 between the regional management server 100 and the wide area network NW. In the power management system 1B of the third embodiment, the information transmission path is different from that of the power management system 1 of the first embodiment shown in FIG. 1 and the power management system 1A of the second embodiment shown in FIG. The connection of the regional management server 100 to the wide area network NW is limited only to the route via the power information provider 400. However, the basic operation is the same as in the first and second embodiments.

  In the power management system 1B shown in FIG. 3, the power information provider 400 also performs planned distribution and control to the storage battery. In this configuration, since the area management server 100 is not directly connected to the wide area network NW, security can be improved.

<Fourth Embodiment>
In the fourth embodiment of the present invention, as shown in FIG. 8, the grouping of each customer is different from the grouping of each customer in the first embodiment described with reference to FIG. FIG. 8 is a diagram showing an example of each grouping in the fourth embodiment. The grouping shown in FIG. 8 is a grouping made based on the feeders 701 to 703 of the high-voltage distribution line 700 to which each consumer is connected. That is, each group is composed of consumers connected to the same feeder 701, 702 or 703 of the distribution network. In this case, the consumers 20-1 to 20-4 connected to the pole transformer 611 connected to the feeder 701 are classified into the accommodation group (1) 200-1. Further, the customer 20-14 and the customer 20-5 to 20-13 connected to the feeder 702 directly or via the pole transformer 612 or the pole transformer 613 are classified into the accommodation group (2) 200-2. Has been. Further, the customer 30-12 and the customers 30-1 to 30-2 connected to the feeder 701 directly or via the pole transformer 611 are classified into a demand group (1) 300-1. Further, the customers 30-13 to 30-14 and the customers 30-3 to 30-11 connected to the feeder 703 directly or via the pole transformer 614 are classified into the demand group (2) 300-2. Yes.

  As shown in FIG. 8, by forming a group based on the feeders of the distribution network, a plan for accommodation can be made so that the power flowing through the feeder does not exceed the upper limit.

  In addition, each said embodiment can be set as the following aspects, for example. Alternatively, each of the above embodiments can be regarded as having the following aspects.

  That is, the power management system 1, 1A, or 1B is a power management system that manages the supply and consumption of power in the system power supply, storage battery, and power load. Moreover, the power management system 1, 1A or 1B classifies the consumers in the community into one or more demand groups and accommodation groups, estimates the supply and consumption of power on a predetermined day for each accommodation group, Establish demand, charge, and discharge plans including surplus power and / or shortage power, estimate power consumption in the grid power supply, storage battery and power load for each demand group, calculate demand, and surplus power between groups Adjustment with demand can be performed.

  A community accommodating a plurality of accommodation groups or demand groups can receive power from the same distribution substation.

  In addition, the accommodation planning unit 130 operates within the accommodation group to reduce the surplus as much as possible by performing an operation that maximizes the independence rate that uses natural energy at the maximum when creating a charging plan. It is possible to create a plan for accommodating surplus power so that the amount can be accommodated between the accommodation group and the demand group.

  In addition, when the surplus remains in the prediction of the entire community that accommodates a plurality of accommodation groups or demand groups, the accommodation planning unit 130 performs recalculation to remove the allocation mismatch in the demand margin, and recalculates until there is no surplus power. Can be repeated.

  In addition, when the surplus power is allocated to the demand generated in the demand group, the interchange planning unit 130 calculates the surplus allocation in the prediction of the entire community that accommodates the plurality of interchange groups, or has no power and high priority. In the calculation in the case where there is a demand, a charge / discharge plan should be created by discharging from the storage battery provided in the power storage facility 94 with priority in the demand time zone in one or more flexible groups. Can do.

  Moreover, one interchange group or demand group can be comprised by the consumer with the same consumer attribute. The customer attribute is information representing the characteristics or properties of a building or facility such as a house, commercial facility, medical / welfare facility, industrial facility, public facility, or disaster critical facility. Alternatively, one interchangeable group or demand group can be configured from consumers with the same fee structure. Moreover, one interchange group or demand group can be comprised from the customer with the same fee structure and consumer attribute.

  Moreover, one interchange group or demand group can be comprised by the group of the consumers connected to the feeder for the same high voltage power distribution.

  One area management server 100 may manage a plurality of communities that accommodate a plurality of accommodation groups or demand groups.

  In addition, when the surplus power is allocated to the demand generated in the demand group, the accommodation planning unit 130 gives priority to the supply demand demand of the demand group having a high electricity price, if the electricity charge is different for each demand group. It can be made to discharge from the storage battery with which the electrical storage equipment of a low-cost accommodation group is equipped.

  In addition, when the surplus power is allocated to the demand generated in the demand group and the electricity rate is different for each accommodation group or demand group, the accommodation planning unit 130 requests the demand of the accommodation group or demand group having a low electricity rate. Demand can be prioritized and allocated to the demands of the most expensive accommodation group or demand group.

  Further, when the surplus planning unit 130 allocates surplus power to the demand generated in the demand group, the electricity charge of the power discharged from the storage battery included in the power storage facility 94 with respect to the supply demand demand is the accommodation for discharging. It may be set higher than the electricity charge in the time zone of the group, and higher than the electricity charge in the time zone of the demand group in which the supply demand demand has occurred.

  In addition, when the surplus planning unit 130 allocates surplus power to the demand generated in the demand group, the electricity charge of the power charged in the storage battery included in the power storage facility 94 with respect to the demand demand demand is the accommodation for discharging. It may be set higher than the electricity charge in the time zone of the group, and higher than the electricity charge in the time zone of the demand group in which the supply demand demand has occurred.

  In addition, when the surplus power is allocated to the demand generated in the demand group, the accommodation planning unit 130 uses the power exceeding the contract power by the flat rate as the demand, when the charge contract of the demand group customer is a flat rate charge. The surplus power can be allocated to the demand.

  In addition, when the surplus power is allocated to the demand generated in the demand group, the interchange planning unit 130 can repeatedly perform a process of creating a plan for accommodating surplus power until the demand disappears at the time of allocation.

A program for realizing the functions of the power management system 1 described above is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to execute the power described above. Processing of the management system 1 may be performed. Here, “loading and executing a program recorded on a recording medium into a computer system” includes installing the program in the computer system.
The “computer system” here includes an OS and hardware such as peripheral devices. Further, the “computer system” may include a plurality of computer devices connected via a network including a communication line such as the Internet, WAN, LAN, and dedicated line. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. As described above, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM. The recording medium also includes a recording medium provided inside or outside that is accessible from the distribution server in order to distribute the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program that can be executed by the terminal device. That is, the format stored in the distribution server is not limited as long as it can be downloaded from the distribution server and installed in a form that can be executed by the terminal device. Note that the program may be divided into a plurality of parts, downloaded at different timings, and combined in the terminal device, or the distribution server that distributes each of the divided programs may be different. Furthermore, the “computer-readable recording medium” holds a program for a certain period of time, such as a volatile memory (RAM) inside a computer system that becomes a server or a client when the program is transmitted via a network. Including things. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design etc. of the range which does not deviate from the summary of this invention are included.

1, 1A, 1B Power management system 20-1 to 20-14, 30-1 to 30-14 Consumer 94 Power storage facility 95 Power generation facility 100 Regional management server 130 Interchange planning unit 140 Basic information storage unit 200-1 Interchange group ( 1)
200-2 Interchange Group (2)
300-1 Demand Group (1)
300-2 Demand group (2)

Claims (19)

Information representing one or more accommodation groups consisting of one or a plurality of consumers having at least one of power generation facilities or power storage facilities, and one or a plurality of consumers consisting of one or a plurality of consumers not including power generation facilities and power storage facilities Referring to the storage unit storing information representing the demand group of
Perform demand forecasting, power generation forecasting and charge / discharge plan creation for one or more of the consumers belonging to the accommodation group,
Performing a demand forecast for one or more of the consumers belonging to the demand group;
One or more demands for surplus power that is predicted to be generated in one or more of the accommodation groups based on a result obtained by summing up each of the prediction results and the charge / discharge plan creation results for each of the accommodation groups or the demand groups. A power management system with an accommodation planning department that creates plans to accommodate groups. 2. The power management system according to claim 1, wherein the accommodation planning unit re-creates the accommodation plan based on the summation result for each accommodation group or the demand group calculated again based on the creation result of the accommodation plan. . The said interchange plan part performs each said prediction, the said charging / discharging plan preparation, the total for every said accommodation group or the said demand group, and the creation of the said plan to accommodate for every predetermined time. Power management system. The configuration of the accommodation group or the demand group is not fixed, but is changed on a daily basis before the generation, demand, or surplus forecast in the accommodation group or the demand group on or before the previous day The power management system according to any one of claims 1 to 3. The power management system according to any one of claims 1 to 4, wherein a community accommodating a plurality of the accommodation groups or the demand groups receives power from the same distribution substation. In the accommodation group, the accommodation planning unit operates to maximize the independence rate that maximizes the use of natural energy and to reduce the surplus as much as possible. The power management system according to any one of claims 1 to 5, wherein the plan for accommodating is created so as to accommodate between groups. If the surplus remains in the prediction of the entire community that accommodates a plurality of the accommodation groups or the demand groups, the accommodation planning unit performs recalculation to eliminate the allocation mismatch in the demand margin, and the re-establishment until the surplus power runs out. The power management system according to claim 1, wherein the calculation is repeated. The accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the calculation of the surplus allocation in the prediction of the entire community accommodating the plurality of accommodation groups, or no power, is preferred In the calculation in the case where the demand is high, in one or more of the accommodation groups, for the time zone of the demand, the storage battery included in the power storage facility is preferentially discharged, The power management system according to claim 1, wherein a charge / discharge plan is created. The power management system according to any one of claims 1 to 8, wherein one accommodation group or the demand group includes the consumers having the same consumer attribute. The power management system according to any one of claims 1 to 9, wherein one accommodation group or the demand group is configured by a set of the consumers connected to the same high-voltage power distribution feeder. The power management system according to any one of claims 1 to 10, wherein one area management server manages a plurality of communities accommodating the plurality of accommodation groups or the demand groups. The accommodation planning unit allocates the surplus power to the demand generated in the demand group, and when the electricity charge is different for each demand group, the supply demand demand of the demand group having a high electricity charge is determined. The power management system according to any one of claims 1 to 11, wherein discharge is performed from a storage battery provided in the power storage facility of the accommodation group with the lowest charge. When the accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the electricity charge is different for each of the accommodation group or the demand group, the accommodation group having a low electricity charge or The power management system according to any one of claims 1 to 12, wherein the demand demand demand of the demand group is given priority and assigned to the demand of the accommodation group or the demand group having the highest charge. The accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the electricity charge of the power discharged from the storage battery included in the power storage facility with respect to the supply demand demand is discharged. 14. The electricity rate set in the time zone of the accommodation group to be performed is set higher than the electricity rate in the time zone, and is set higher than the electricity fee in the time zone of the demand group in which the demand for supply is generated. The power management system according to claim 1. The accommodation planning unit allocates the surplus power to the demand generated in the demand group, and the electricity charge of the power charged in the storage battery provided in the power storage facility for the demand demand demand is discharged. The electricity rate for the accommodation group to be set is set to be higher than the electricity rate for that time zone, and is set to be higher than the electricity rate for the demand group in which the supply demand demand has occurred. The power management system according to claim 1. The interchange planning unit allocates the surplus power to the demand generated in the demand group, and when the charge contract of the consumer of the demand group is a flat fee, the contract power by the flat fee is obtained. The power management system according to any one of claims 1 to 15, wherein the surplus power is allocated to the demand using the excess power as the demand. The said accommodation plan part allocates the said surplus electric power with respect to the demand which generate | occur | produced in the said demand group, Comprising: The process which produces the said plan to accommodate is repeated until the said demand is lost at the time of allocation. The power management system according to any one of 1 to 16. The accommodation planning department
Information representing one or more accommodation groups consisting of one or a plurality of consumers having at least one of power generation facilities or power storage facilities, and one or a plurality of consumers consisting of one or a plurality of consumers not including power generation facilities and power storage facilities Referring to the storage unit storing information representing the demand group of
Perform demand forecasting, power generation forecasting and charge / discharge plan creation for one or more of the consumers belonging to the accommodation group,
Performing a demand forecast for one or more of the consumers belonging to the demand group;
One or more demands for surplus power that is predicted to be generated in one or more of the accommodation groups based on a result obtained by summing up each of the prediction results and the charge / discharge plan creation results for each of the accommodation groups or the demand groups. A power management method that creates plans that are flexible to the group. The accommodation planning department
Information representing one or more accommodation groups consisting of one or a plurality of consumers having at least one of power generation facilities or power storage facilities, and one or a plurality of consumers consisting of one or a plurality of consumers not including power generation facilities and power storage facilities Referring to the storage unit storing information representing the demand group of
Perform demand forecasting, power generation forecasting and charge / discharge plan creation for one or more of the consumers belonging to the accommodation group,
Performing a demand forecast for one or more of the consumers belonging to the demand group;
One or more demands for surplus power that is predicted to be generated in one or more of the accommodation groups based on a result obtained by summing up each of the prediction results and the charge / discharge plan creation results for each of the accommodation groups or the demand groups. A program that allows a computer to execute a process that creates a plan that is flexible to a group.

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