JP7101505B2 - Electric power trading method and electric power trading system that executes the electric power trading method - Google Patents

Description

The present invention relates to an electric power trading method and an electric power trading system that executes the electric power trading method.

Patent Document 1 discloses a method of trading electric power in the electric power market. In Patent Document 1, the computer of the exchange, the computer of the electric power supplier, and the computer of the electric power consumer are connected through a communication line. Then, the computer of the electric power supplier accepts a sell order for selling future electric power and a buy order for purchasing future electric power from the electric power supplier. The power consumer's computer accepts a buy order to buy future power and a sell order to sell power at a specific point in the future from the power consumer.

The computer of the exchange notifies the computer of the power supplier and the computer of the power consumer that the winning bid has been made when the selling price and the buying price at a specific time in the future match.

According to the electric power transaction method of Patent Document 1, an electric power consumer can procure inexpensive electric power at an early stage if a long-term forecast of the supply and demand of electric power is made. In addition, power suppliers can reduce the risk of investment in power facility construction by obtaining long-term supply and demand forecasts from power consumers.

Patent No. 4497878

However, the transaction method of Patent Document 1 is merely a method of concluding a transaction based on the balance between the selling price and the buying price from the relationship between the supply and demand of electric power, and is between the electric power supplier and the electric power consumer. Nothing is disclosed about free electricity trading.

Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an electric power trading method capable of improving the degree of freedom of electric power trading and an electric power trading system for executing the electric power trading method.

The characteristic configuration of the electric power trading method according to the present invention is
A power trading method in a power trading system including a management terminal that manages the supply of grid power of an electric power company and an intermediary terminal that mediates power trading between a plurality of facilities that receive the grid power.
At least one of the plurality of facilities has a power generation device that generates distributed power different from the system power.
A plurality of facility terminals arranged in each of the plurality of facilities to be supplied with the grid power, and a communication network for connecting communication between the plurality of facility terminals and the intermediary terminal are provided.
The intermediary terminal is
Includes information that identifies the second facility among the plurality of facilities as the supply side from the user of the first facility among the plurality of facilities via the first facility terminal arranged in the first facility. Moreover, the first request for supplying the distributed power generated by the power generation device of the second facility to the first facility is received, and the user of the second facility places the distributed power in the second facility. Upon receiving the second request for supplying the distributed power generated by the power generation device of the second facility to the first facility, the information including the information specifying the first facility as the supply destination is received via the second facility terminal.
When the first request and the second request match, the consent for the first request is transmitted to the first facility terminal, and the consent for the second request is transmitted to the second facility terminal.
The point is to adjust the supply of the distributed power generated by the power generation device of the second facility from the second facility to the first facility.

According to this feature configuration, the intermediary terminal is used from the user of the first facility among the plurality of facilities to the second facility among the plurality of facilities via the first facility terminal arranged in the first facility. Receives the first request to supply the distributed power generated by the power generation device of the second facility to the first facility, which includes the information specified as the supply side, and the user of the second facility sends the second facility. Receives a second request to supply the distributed power generated by the power generation device of the second facility to the first facility, including the information specifying the first facility as the supply destination, via the second facility terminal arranged in. .. Then, the intermediary terminal has a first request for demanding distributed power from the first facility on the demand side to the second facility on the supply side, and distributed power from the second facility on the supply side to the first facility on the demand side. If it matches the second request to receive the supply of , the consent for the first request is sent to the first facility terminal, the consent for the second request is sent to the second facility terminal, and the supply side It is possible to supply distributed power from the second facility to the first facility on the demand side. Therefore, while multiple facilities exist in the power trading system that can receive the supply of grid power, distributed power can be traded between each facility, and the degree of freedom of power trading can be improved. be. In addition, it is possible to conclude a power transaction by a simple method of input from a terminal.

In this way, if the demands from both users are matched, it is possible to satisfy the demands for the supply and demand of distributed power between specific facilities (or individuals). This makes it possible to trade distributed power that reflects the intentions of specific individuals, for example, even between facilities that exist in a power trading system that can receive grid power. However, it is possible to improve the degree of freedom in electricity trading.

Further characteristic configurations of the electric power trading method according to the present invention are
In the power generation device of the second facility, when the distributed power generated by the power generation is larger than the distributed power supplied to the first facility and the surplus distributed power is generated, the surplus distributed power is used as the system power. It is at the point of reverse power flow to the side.

The first facility on the demand side and the second facility on the supply side are included in the power trading system that can receive the supply of grid power from the electric power company, and the distributed power is traded between the first facility and the second facility. It is possible to trade electricity with a high degree of freedom. Therefore, as in this feature configuration, of the distributed power generated by the power generation device of the second facility on the supply side, the surplus remaining after supplying the distributed power from the second facility on the supply side to the first facility on the demand side. It is possible to reverse the distributed power to the grid power side. As a result, the efficient use of the surplus distributed power can be promoted by reverse-feeding the surplus distributed power while preferentially supplying the distributed power to a specific facility.

Further characteristic configurations of the electric power trading method according to the present invention are
The shortage of the distributed power generated by the power generation device of the second facility is less than the distributed power supplied to the first facility is supplemented by the system power.

The first facility on the demand side and the second facility on the supply side are included in the power trading system that can receive the supply of grid power from the electric power company, and the distributed power is traded between the first facility and the second facility. It is possible to trade electricity with a high degree of freedom. Therefore, according to this feature configuration, even after the distributed power in the power generation device of the second facility on the supply side is preferentially supplied from the second facility on the supply side to the first facility on the demand side, the demand side If there is a shortage of power at the first facility, the shortage of power can be supplemented by grid power. As a result, the demand for electric power at the first facility on the demand side can be almost satisfied without excess or deficiency.

Further characteristic configurations of the electric power trading method according to the present invention are
At least one of the first requirement and the second requirement is the price, the supply amount, the power generated by solar power generation, the power generated by wind power generation, and the fuel for the distributed power generated by the power generation device of the second facility. The distributed power addition condition in which at least one of the type of power including the power generated by the battery system, the designation of the distributed power supply time zone, and the environmental coefficient indicating the load on the environment is specified, the first facility, and the first facility and At least one of user-related information related to at least one user of the second facility and facility-related information related to at least one of the first facility and the second facility is included. There is a point.

According to this feature configuration, the first demand for distributed power and the second demand for supply include distributed power addition conditions, user-related information, facility-related information, and the like. This makes it possible to trade distributed power between facilities existing in a power trading system capable of receiving grid power while limiting power trading according to desired conditions. For example, the desired conditions are based on the will of the individual, and it is possible to carry out electricity trading with a high degree of freedom that reflects the will of the individual.

Further characteristic configurations of the electric power trading method according to the present invention are
The intermediary terminal is to the first facility terminal of the first facility that received the distributed power supply and the second facility terminal of the second facility that supplied the distributed power, and from the second facility to the first facility. The supply amount and price of the supplied distributed power, the type of power including the power generated by solar power generation, the power generated by wind power generation, and the power generated by the fuel cell system, the environmental coefficient indicating the load on the environment, and the supply of the distributed power. The point is to transmit supply information including at least one of a time zone, a supply destination, and a supply source.

According to this feature configuration, the distributed power supply information is transmitted to each terminal between the facilities where the distributed power transaction is made. Users of the facility can check supply information.

The characteristic configuration of the electric power trading system according to the present invention is
A power trading system including a management terminal that manages the supply of grid power of an electric power company and an intermediary terminal that mediates power transactions between a plurality of facilities that receive the grid power.
At least one of the plurality of facilities has a power generation device that generates distributed power different from the system power.
A plurality of facility terminals arranged in each of the plurality of facilities to be supplied with the grid power, and a communication network for connecting communication between the plurality of facility terminals and the intermediary terminal are provided.
The intermediary terminal is
Includes information that identifies the second facility among the plurality of facilities as the supply side from the user of the first facility among the plurality of facilities via the first facility terminal arranged in the first facility. Moreover, the first request for supplying the distributed power generated by the power generation device of the second facility to the first facility is received, and the user of the second facility places the distributed power in the second facility. Upon receiving the second request for supplying the distributed power generated by the power generation device of the second facility to the first facility, the information including the information specifying the first facility as the supply destination is received via the second facility terminal.
When the first request and the second request match, the consent for the first request is transmitted to the first facility terminal, and the consent for the second request is transmitted to the second facility terminal.
The point is to adjust the supply of the distributed power generated by the power generation device of the second facility from the second facility to the first facility.

According to this feature configuration, the intermediary terminal is used from the user of the first facility among the plurality of facilities to the second facility among the plurality of facilities via the first facility terminal arranged in the first facility. Receives the first request to supply the distributed power generated by the power generation device of the second facility to the first facility, which includes the information specified as the supply side, and the user of the second facility sends the second facility. Receives a second request to supply the distributed power generated by the power generation device of the second facility to the first facility, including the information specifying the first facility as the supply destination, via the second facility terminal arranged in. .. Then, the intermediary terminal has a first request for demanding distributed power from the first facility on the demand side to the second facility on the supply side, and distributed power from the second facility on the supply side to the first facility on the demand side. If it matches the second request to receive the supply of , the consent for the first request is sent to the first facility terminal, the consent for the second request is sent to the second facility terminal, and the supply side It is possible to supply distributed power from the second facility to the first facility on the demand side. Therefore, while multiple facilities exist in the power trading system that can receive the supply of grid power, distributed power can be traded between each facility, and the degree of freedom of power trading can be improved. be. In addition, it is possible to conclude a power transaction by a simple method of input from a terminal.

In this way, if the demands from both users are matched, it is possible to satisfy the demands for the supply and demand of distributed power between specific facilities (or individuals). This makes it possible to trade distributed power that reflects the intentions of specific individuals, for example, even between facilities that exist in a power trading system that can receive grid power. However, it is possible to improve the degree of freedom in electricity trading.

It is a schematic diagram which shows the connection of the electric power line of an electric power trading system. It is a schematic diagram which shows the network configuration of the electric power trading system. It is a schematic diagram which shows a mode that distributed power is traded between a supplier and a consumer by a supplier call. It is a schematic diagram which shows an example of an input screen. It is a schematic diagram which shows an example of the specification of electric power. It is a schematic diagram which shows a mode that distributed power is traded between a supplier and a consumer by a consumer call. It is a schematic diagram which shows the mode that distributed power is traded between a supplier and a consumer by a supplier call and a consumer call. It is a schematic diagram which shows the network configuration of the electric power trading system.

[Embodiment]
The electric power trading method and the electric power trading system according to the embodiment of the present invention will be described below.
As shown in FIGS. 1 and 2, the electric power trading system 1 includes an electric power company 10 that supplies grid power and a plurality of facilities (facility A, facility B, facility) that receive system power supply from the power company 10. C ...) And an intermediary terminal 30 that mediates communication between a plurality of facilities are included. In the present embodiment, the intermediary terminal 30 is configured to mediate communication between a plurality of facilities and to be able to communicate with the electric power company 10. Further, a power generation device 23 (23A, 23C ...) Is arranged in at least one of the plurality of facilities, and the power generation device 23 generates distributed power.

The grid power means the power supplied to each facility by the electric power company 10. Further, the distributed power means the power generated by the power generation device 23 of each facility, unlike the grid power.
Further, in the present embodiment, when the facilities A, B, C ... Are generically referred to, they are simply referred to as a plurality of facilities. Further, when the power generation devices 23A, 23C, ... Are collectively referred to, they are simply referred to as the power generation device 23.

(1) Electric Power Line of Electric Power Trading System 1 First, the electric power line of the electric power trading system 1 will be described with reference to FIG. The electric power company 10 is connected to a plurality of facilities via the grid power line L1. As a result, the plurality of facilities can receive grid power from the power company 10 via the grid power line L1. Further, among the plurality of facilities, the facility having the power generation device 23 can reverse the distributed power generated by the power generation device 23 to the electric power company 10 side via the grid power line L1. Therefore, the electric power company 10 holds the grid power so that it can be supplied, and also holds the distributed power supplied from the plurality of facilities.

Therefore, a plurality of facilities included in such an electric power trading system 1 can receive grid electric power from the electric power company 10 via the grid electric power line L1, and generate power between the facilities. The distributed electric power generated can be supplied and supplied from the electric power company 10 via the grid power line L1.

(2) Network Configuration of Electric Power Trading System 1 Next, the network configuration of the electric power trading system 1 will be described with reference to FIG. The management terminal 11 that manages the grid power of the electric power company 10, the facility terminals 21 (21A, 21B, 21C ...) Arranged in each of the plurality of facilities, and the intermediary terminal 30 are connected to the network (communication network) 40. It is connected via. In the following, when the facility terminals 21A, 21B, 21C ... Are generically referred to, they are simply referred to as the facility terminal 21.

The management terminal 11 manages information and the like that identify a plurality of facilities to which grid power is supplied. The management terminal 11 includes a grid power management unit 13 and a storage unit 15. The storage unit 15 stores information on a plurality of facilities contracted to receive grid power from the electric power company 10. The storage unit 15 stores, for example, an ID (IDentifier: identifier) of each of a plurality of contracted facilities, a unit price of grid power, and the like.

The grid power management unit 13 manages grid power supplied to a plurality of facilities. For example, the grid power management unit 13 adjusts the amount of grid power supplied to the grid power line L1 in consideration of the power load in a plurality of facilities. The grid power amount may be adjusted so as to be different for each predetermined area, for example, according to the power load for each predetermined area.

In addition, for example, when the distributed electric power generated in each facility is surplus and the surplus distributed electric power is generated, the electric power company 10 receives the supply of the surplus distributed electric power back-fed from each facility. On the other hand, when the electric power is insufficient in each facility, each facility receives the supplement of the insufficient electric power from the electric power company 10.

Each of the plurality of facility terminals 21 is arranged in each of the plurality of facilities. That is, as shown in FIG. 2, facility terminals 21A, 21B, 21C ... Are arranged in each of the facilities A, B, C ... The plurality of facility terminals 21 are connected to the intermediary terminal 30 via the network 40. A distributed power management unit 25 (25A, 25B, 25C ...) Is provided in each of the plurality of facility terminals 21. Hereinafter, when the distributed power management units 25A, 25B, 25C ... Are generically referred to, they are simply referred to as the distributed power management unit 25.

Further, at least one of the plurality of facilities is equipped with a power generation device 23. For example, as shown in FIGS. 1 and 2, facility A is provided with a power generation device 23A, and facility C is provided with a power generation device 23C. On the other hand, facility B is not equipped with a power generation device. Here, the power generation device 23 is not particularly limited as long as it is a device capable of generating electric power, and examples thereof include a solar power generation device, a wind power generation device, and a fuel cell system.

The distributed power management unit 25 described above adjusts the distributed power generated by the power generation device 23 of each facility so that it can be traded between a plurality of facilities. Here, the intermediary terminal 30 has an intermediary processing unit 31. The mediation processing unit 31 mediates communication between the distributed power management units 25 of the plurality of facilities. That is, the distributed power management unit 25 of one facility communicates with the distributed power management unit 25 of another facility via the mediation processing unit 31 of the mediation terminal 30, and can trade distributed power with the mediation processing unit 31. To.

(3) Electricity trading method (3-1) Electricity trading method (call by supplier)
Next, the electric power trading method in the electric power trading system 1 will be described. First, an example in which a supplier who supplies distributed power requests the supply of distributed power generated at a facility used by the supplier to another facility and a power transaction starts will be described with reference to FIG. That is, the case where the electricity transaction is started by the call from the supplier will be described.
In FIG. 3, the user (distributed power supplier) of the supply-side facility A (second facility) supplies the distributed power generated by the power generation device 23A of the supply-side facility A to the demand-side facility. The case where B (first facility) is selected will be described.

Step S1: The user of the facility A inputs a supply request (second request) for supplying the distributed power generated by the power generation device 23A to the facility B from an input unit (not shown) of the facility A.

The user of the facility A inputs a supply destination ID for specifying the supply destination from the input screen shown in FIG. 4, for example. In addition, additional conditions such as desired unit price, power supply condition indicating the type of power generated by distributed power, supply time zone, period and presence / absence of notification of supplier's personal information, supply source ID, etc. (distributed power addition) Conditions) can be entered. The type of electric power is, for example, the type of electric power generation source such as electric power generated by solar power generation, electric power generated by wind power generation, and electric power generated by a fuel cell system. The supply request is constructed based on these inputs. The input content is not limited to the above-mentioned input content, as long as there is at least information that specifies the supply destination. In addition, the input content may include an environmental coefficient or the like indicating a load on the environment.

Further, the input contents may include user-related information, facility-related information, and the like.
The user-related information is information that identifies an individual such as a name and occupation of at least one of a distributed power supplier (user of facility A) and a consumer (user of facility B). Here, the information that identifies an individual may be information that identifies one individual, or information that identifies a plurality of individuals. For example, if it is a name, it is information that identifies one individual. Further, for example, in the case of a profession, it is information that identifies a plurality of individuals in the profession. By including user-related information in the input content, for example, it is possible to specify what kind of consumer the supplier supplies distributed power to, and what kind of supplier the consumer provides distributed power from. You can specify whether to receive it.

The facility-related information includes at least one of facility A (second facility) and facility B (first facility), for example, the facility name, the type of facility such as a baseball stadium and a concert venue, and the owner. Information that identifies the facility of. Here, the information that identifies a facility may be information that identifies one facility or information that identifies a plurality of facilities. For example, if it is a facility name, it is information that identifies one facility. Further, for example, in the case of a facility type, it is information for specifying a plurality of facilities corresponding to the facility type. By including facility-related information in the input contents, for example, it is possible to specify what kind of facility the supplier supplies the distributed power to, and what kind of facility the consumer receives the distributed power from. Can be specified.

When the distributed power management unit 25A of the facility terminal 21A (second facility terminal) receives the supply request based on the above-mentioned input contents, it transmits the supply request to the intermediary processing unit 31 of the intermediary terminal 30.

The intermediary processing unit 31 refers to the storage unit 15 (FIG. 2) of the management terminal 11 and determines whether or not the facility A and the facility B where the power transaction of the distributed power is about to be started are registered in the storage unit 15. do. If the facility A and the facility B are registered in the storage unit 15, the mediation processing unit 31 proceeds to the process in step S2. On the other hand, the mediation processing unit 31 does not accept the supply request from the facility A if either the facility A or the facility B is not registered in the storage unit 15. For example, the intermediary processing unit 31 notifies the distributed power management unit 25A that the supply request cannot be accepted.

Step S2: The mediation processing unit 31 transmits the supply request of the facility A to the facility B (first facility). The distributed power management unit 25B of the facility terminal (first facility terminal) 21B of the facility B receives the supply request, and presents the supply request to the user of the facility B, for example, via a display unit (not shown).

When the user of the facility B (the consumer of the distributed power) receives the presentation of the supply request and accepts the supply request, the user inputs the consent to the distributed power management unit 25B through an input unit (not shown). In the case of FIG. 3, the user of the facility B has accepted the supply request from the facility A. This consent is a demand request (first request) for the distributed power of the facility A by the facility B.

It should be noted that the acceptance of this supply request includes not only the acceptance of all the requests included in the supply request but also the approval of only a part of the supply request. As described above, the supply request includes, for example, a desired unit price, a power supply condition indicating the type of power generated by distributed power, a supply time zone in one day, a period, and whether or not the supplier's personal information is notified. Additional conditions are included. And the acceptance of the supply request may be acceptable for each of these additional conditions. For example, the user of the facility B may accept the desired unit price and the power supply condition in the supply request, and may accept only a part of the designated time zone. As described above, the consent may include information to the effect that all of the supply requests are accepted, or information about the accepted portion of the supply request.

If the user of the facility B receives the presentation of the supply request and does not approve the supply request, he / she inputs the disapproval to the distributed power management unit 25B through an input unit (not shown).

Step S3: The distributed power management unit 25B transmits a notification of accepting the supply request of the facility A to the intermediary processing unit 31.
Step S4: The mediation processing unit 31 transmits a notification of consent to the distributed power management unit 25A.
When the distributed power management unit 25B receives the disapproval, the distributed power management unit 25B transmits a notification of the disapproval to the supply request of the facility A to the intermediary processing unit 31. The intermediary processing unit 31 transmits a notification of disapproval of the supply request of the facility A to the distributed power management unit 25A. As a result, the distributed power is not supplied from the power generation device 23A to the facility B.

Step S5-1: The distributed power management unit 25A causes the power generation device 23A to supply the distributed power to the facility B based on the supply request of the facility A and the consent transmitted from the facility B. Here, for example, when a time zone is specified in the above information, the power generation device 23A supplies distributed power to the facility B in the designated time zone. Here, for example, the power generation device 23A supplies the distributed electric power to the electric power company 10, and the facility B receives the supply of a desired amount of electric power based on the supply request A and the like from the electric power company 10.

Step S5-2: When the distributed power generated by the power generation device 23A is larger than the distributed power supplied to the facility B, the power generation device 23A determines that surplus distributed power is generated. In this case, for example, the power generation device 23A reverse-feeds the surplus distributed power to the electric power company 10.

Here, the facility A and the facility B are included in the electric power trading system 1 capable of receiving the supply of grid electric power from the electric power company 10. Therefore, as described above, of the distributed power generated by the power generation device 23A of the facility A, the surplus distributed power remaining after the distributed power is supplied from the facility A to the facility B can be reverse-flowed to the grid power side. As a result, the efficient use of the surplus distributed power can be promoted by reverse-feeding the surplus distributed power while preferentially supplying the distributed power to a specific facility.

Step S5-3: The distributed power generated by the power generation device 23A may be less than the distributed power supplied to the facility B. In this case, for example, the facility B receives the shortage power supply from the grid power of the electric power company 10.

Here, since the facility A and the facility B are included in the power trading system 1 capable of receiving the system power supply from the electric power company 10, the shortage power can be supplemented by the grid power as described above. .. As a result, the demand for electric power in the facility B can be almost satisfied without excess or deficiency.

Step S6-1: The power generation device 23A notifies the distributed power management unit 25A of the amount of distributed power supplied to the facility B and the like. In this case, the power generation device 23A may notify the distributed power management unit 25A of the amount of surplus distributed power that has been reverse-fed to the electric power company 10.

Step S6-2: The distributed power management unit 25A notifies the intermediary processing unit 31 of the amount of distributed power supplied to the facility B and the like.

The power generation device 23A may notify the mediation processing unit 31 of the amount of supply to the facility B and the like. Further, the distributed power management unit 25B may notify the intermediary processing unit 31 of the amount of power supplied by the facility B.

Step S7-1: The intermediary processing unit 31 notifies the distributed power management unit 25A of the details of the distributed power supply amount based on the distributed power supply amount from the power generation device 23A to the facility B and the like. Here, the unit price of the distributed power is, for example, a desired unit price input by the user of the facility A.
The distributed power management unit 25A presents the details to the user of the facility A via a display unit (not shown).

Step S7-2: The intermediary processing unit 31 notifies the distributed power management unit 25B of the details based on the amount of distributed power supplied to the facility B and the like.

The distributed power management unit 25B presents the details to the user of the facility B via a display unit (not shown). For example, the details shown in FIG. 5 are presented to the user of the facility B. In FIG. 5, for example, the details for one month in October are shown, and the power source composition ratio, the purchase unit price, the purchase amount, and the like are shown for each supply source. The power source composition ratio indicates the ratio of the supplied electric power for each type of electric power including the electric power generated by solar power generation, the electric power generated by wind power generation, and the electric power generated by a fuel cell system. In addition, the specification may include an environmental coefficient indicating a load on the environment and a distributed power supply time zone.

Although FIG. 5 shows an example of the details of the user (electric power consumer) of the facility B, the same details are presented to the user (electric power supplier) of the facility A in step S7-1. May be done.
In this way, the details are transmitted as the distributed power supply information to each facility terminal between the facilities where the distributed power transaction is made. Users of the facility can check supply information.

(3-2) Electricity trading method (calling by consumers)
Next, an example in which a consumer of distributed power requests demand for distributed power generated at another facility and a power transaction starts will be described with reference to FIG. That is, the case where the electricity transaction is started by the consumer call will be described.

In FIG. 6, a user (distributed power consumer) of facility B (first facility) on the demand side requests demand for distributed power generated by the power generation device 23A of facility A (second facility) on the supply side. The case will be described. It differs from the electric power trading method (supplier call) of FIG. 3 in that the request for distributed power is a consumer call, and the processing procedure is different in that respect. Therefore, the description of the same processing as in FIG. 3 will be simplified.

Step S1: The user of the facility B inputs a demand request (first request) requesting the facility B to supply the distributed power generated by the power generation device 23A from an input unit (not shown) of the facility B. The input is the same as in step S1 of FIG.

When the distributed power management unit 25B of the facility terminal 21B (first facility terminal) receives the demand request based on the above-mentioned input contents, it transmits the demand request to the intermediary processing unit 31 of the intermediary terminal 30. The intermediary processing unit 31 refers to the storage unit 15 (FIG. 2) of the management terminal 11, and if the facility A and the facility B, which are the targets of the electric power transaction, are registered in the storage unit 15, the processing proceeds to step S2. ..

Step S2: The mediation processing unit 31 transmits the demand request of the facility B to the facility A (second facility). The distributed power management unit 25A of the facility terminal (second facility terminal) 21A of the facility A receives the demand request, and presents the demand request to the user of the facility A, for example, via a display unit (not shown). Upon receiving the presentation of the demand request, the user of the facility A (supplier of the distributed power) inputs the consent or the disapproval to the distributed power management unit 25A through the input unit. In the case of FIG. 6, the user of the facility A has accepted the demand request from the facility B.

Step S3: The distributed power management unit 25A transmits a notification for accepting the demand request of the facility B to the intermediary processing unit 31.
Step S4: The mediation processing unit 31 transmits a notification of consent to the distributed power management unit 25B.

Steps S5-1 to S5-3: When the distributed power management unit 25A receives the consent for the demand request of the facility B from the intermediary processing unit 31, the power generation device is based on the demand request of the facility B and the information included in the consent. Let 23A supply the distributed power to the facility B.
The surplus distributed power can be reverse power flow to the grid power side. Further, the shortage of electric power in the facility B can be replenished by the electric power company 10.

Steps S6-1 and S6-2: Either the power generation device 23A or the distributed power management unit 25A notifies the intermediary processing unit 31 of the amount of distributed power supplied from the power generation device 23A.

Step S7-1: The mediation processing unit 31 notifies the distributed power management unit 25A of details regarding the amount of distributed power supplied from the power generation device 23A to the facility B.
Step S7-2: The intermediary processing unit 31 notifies the distributed power management unit 25B of the details based on the amount of distributed power supplied to the facility B and the like.

(3-3) Electricity trading method (supply call and consumer call)
Next, regarding the case where a supply request by a supplier who supplies distributed power and a demand request by a consumer of distributed power are made, and the intermediary terminal 30 adjusts the supply request and the demand request to perform a power transaction. This will be described with reference to FIG. 7. That is, the case where the electric power transaction is started by the call from the supplier and the call from the consumer will be described.

In FIG. 7, the user (distributed power supplier) of the supply-side facility A (second facility) supplies the distributed power generated by the power generation device 23A of the supply-side facility A to the demand-side facility. B (1st facility) is selected. On the other hand, a user of facility B (first facility) on the demand side (consumer of distributed power) demands demand for distributed power generated by the power generation device 23A of facility A (second facility) on the supply side. ..

The electricity transaction in FIG. 7 (supply call and consumer call) is different from the electricity transaction method (supplier call) in FIG. 3 and the electricity transaction method (demand call) in FIG. Is different in that it receives supply and demand requests and decides whether or not to accept them, and in that respect the processing procedure is different. Therefore, the description of the same processing as in FIGS. 3 and 6 will be simplified.

Step S1-1: The user of the facility A inputs a supply request (second request) for supplying the distributed power generated by the power generation device 23A to the facility B from an input unit (not shown) of the facility A. The intermediary processing unit 31 receives the supply request via the distributed power management unit 25A.
Step S1-2: The user of the facility B inputs a demand request (first request) requesting the facility B to supply the distributed power generated by the power generation device 23A from an input unit (not shown) of the facility B. .. The intermediary processing unit 31 receives the demand request via the distributed power management unit 25B.
The intermediary processing unit 31 refers to the storage unit 15 (FIG. 2) of the management terminal 11, and when the facility A and the facility B, which are the targets of the electric power transaction, are registered in the storage unit 15, steps S2-1 and S2. Proceed to -2.

Steps S2-1 and S2-2: The mediation processing unit 31 compares the supply request and the demand request, and if each request matches, sends the consent of the supply request to the distributed power management unit 25A, and distributes power management. The acceptance of the demand request is transmitted to the part 25B.

The mediation processing unit 31 determines whether or not the supply request and the demand request match or does not match, for example, based on the input contents input for each request. For example, when the supply destination and the supply source are related to each other, the mediation processing unit 31 determines that the requests match. In the case of FIG. 7, since the supply request and the demand request are both made between the facility A and the facility B, the mediation processing unit 31 determines that the requests match.

In addition, the intermediary processing unit 31 generally matches the desired unit prices of the requests between the facilities to which the electric power is traded, when the desired unit prices are the same, when the types of electric power are the same, and when the supply time zones are the same. It may be determined whether or not each request matches by determining the case or the like.
It should be noted that at least the facilities related to the request need only be related to each other, and if at least a part of the other points are the same, the mediation processing unit 31 determines that each request is the same. You may.

Steps S3-1 to S3-3: When the distributed power management unit 25A receives the consent for the supply request of the facility A from the intermediary processing unit 31, the distributed power management unit 25A sends the power generation device 23A to the power generation device 23A based on the supply request and the information included in the consent. The distributed power is supplied to the facility B.
The surplus distributed power can be reverse power flow to the grid power side. Further, the shortage of electric power in the facility B can be replenished by the electric power company 10.

Steps S4-1 and S4-2: Either the power generation device 23A or the distributed power management unit 25A notifies the intermediary processing unit 31 of the amount of distributed power supplied from the power generation device 23A.

Step S5-1: The intermediary processing unit 31 notifies the distributed power management unit 25A of the details regarding the supply amount of the distributed power from the power generation device 23A.
Step S5-2: The mediation processing unit 31 notifies the distributed power management unit 25B of the details based on the amount of distributed power supplied to the facility B and the like.

In the process of FIG. 7, when the intermediary processing unit 31 receives the supply request from the facility A and the demand request from the facility B, it determines that the supply request and the demand request match, and accepts these requests. Judge whether or not. However, as in FIG. 3, the intermediary processing unit 31 may transmit the supply request from the facility A to the facility B and accept the input from the user of the facility B as to whether or not to accept the supply request. Further, similarly to FIG. 6, the intermediary processing unit 31 may transmit the demand request from the facility B to the facility A and accept the input from the user of the facility A as to whether or not to accept the demand request.

(4) Action According to the power trading method of the power trading system 1 described above, a supply request requesting the supply of distributed power from the supply side facility A (second facility) to the demand side facility B (first facility) ( Demand request (second request) and demand for distributed power from facility B (first facility) on the demand side to facility A (second facility) on the supply side (request to supply distributed power). If the request) is matched, the intermediary terminal 30 makes it possible to supply distributed power from the supply-side facility A (second facility) to the demand-side facility B (first facility). Therefore, while the plurality of facilities exist in the power trading system 1 capable of receiving the supply of grid power, distributed power can be traded between the facilities, and the degree of freedom of power trading can be improved. ..

In addition, it is possible for the user of facility B (first facility) on the demand side to request the user of facility A (second facility) on the supply side to supply distributed power, and conversely, supply. It is possible for the user of the facility A (second facility) on the side to request the user of the facility B (first facility) on the demand side to receive the supply of distributed power.

Then, if the demands from both users are matched, it is possible to satisfy the demands for the supply and demand of distributed power between specific facilities (or individuals). This makes it possible to trade distributed power that reflects the intentions of specific individuals, for example, even between facilities existing in the power trading system 1 that can receive grid power supply. Also, it is possible to improve the degree of freedom in electricity trading.

Further, the demand request and the supply request for the distributed power include additional conditions such as a desired unit price and a power supply condition indicating the type of the generated power of the distributed power. This makes it possible to trade distributed power between facilities existing in the power trading system 1 capable of receiving the supply of grid power while limiting the power trading according to desired conditions. For example, the desired conditions are based on the will of the individual, and it is possible to carry out electricity trading with a high degree of freedom that reflects the will of the individual.
[Other embodiments]

(1) In the above embodiment, in the electric power transaction system 1 shown in FIG. 2 and the like, the intermediary terminal 30 mediates communication between the facility terminals 21 of a plurality of facilities, and thereby each facility via each facility terminal 21. The supply request (second request) and the demand request (first request) are received from the user of.
However, the intermediary terminal 30 does not necessarily have to receive the supply request (second request) and the demand request (first request) from the user of each facility via each facility terminal 21. For example, the intermediary terminal 30 may accept the supply request (second request) and the demand request (first request) from the user of each facility in writing or the like. Then, the intermediary terminal 30 may accept the input of each request described in the above-mentioned document or the like via a separate input device. Further, the intermediary terminal 30 may acquire a supply request (second request) and a demand request (first request) from a user or the like of each facility via a separate input device, regardless of documents or the like.
In the case of this configuration, the facility terminals arranged in each facility in the above embodiment can be omitted.

(2) In the above embodiment, as shown in FIG. 2, in the electric power trading system 1, each facility terminal 21 of a plurality of facilities, a management terminal 11 of an electric power company 10, and an intermediary terminal 30 are connected via a network 40. Is connected. That is, the intermediary terminal 30 is provided as a terminal separate from the management terminal 11 of the electric power company 10, and is not a terminal owned by the electric power company 10.

However, the intermediary terminal 30 may be a terminal owned by the electric power company 10. That is, as shown in FIG. 8, the intermediary terminal 30 having the intermediary processing unit 31 may be incorporated in the management terminal 11 of the electric power company 10. Then, the management terminal 11 and each facility terminal 21 of the plurality of facilities are connected via the network 40.

In this case, for example, when there is a supply request from the facility A to the facility B, the mediation processing unit 31 first determines whether or not the facility A and the facility B are registered in the storage unit 15. Then, when the facility A and the facility B are registered in the storage unit 15, the communication between the facility A and the facility B is mediated. On the contrary, when the facility A and the facility B are not registered in the storage unit 15, the communication between the facility A and the facility B is not mediated.

When the intermediary processing unit 31 is incorporated in the management terminal 11 of the electric power company 10 as shown in FIG. 8, it is possible to manage the communication between the facilities within the electric power company 10 and simplify the network configuration. .. Further, since the management terminal 11 of the electric power company 10 can grasp the distributed power transaction between each facility, for example, the power generation amount of the grid power is adjusted according to the distributed power transaction between each facility. Etc. are possible.

(3) In the above embodiment, the intermediary terminal 30 mediates communication between a plurality of facilities and can also communicate with the management terminal 11. Then, when the intermediary terminal 30 receives, for example, a supply request from the facility A to the facility B, first, whether or not the facility A and the facility B are registered in the storage unit 15 of the management terminal 11 of the electric power company 10. to decide. Then, when the facility A and the facility B are registered in the storage unit 15, the communication between the facility A and the facility B is mediated. On the contrary, when the facility A and the facility B are not registered in the storage unit 15, the communication between the facility A and the facility B is not mediated.

However, the intermediary terminal 30 does not necessarily have to be able to communicate with the management terminal 11. For example, the intermediary terminal 30 may have a storage unit 15 in which a plurality of facilities capable of receiving system power supply from the electric power company 10 are registered. In this case, even if the intermediary terminal 30 cannot communicate with the management terminal 11, for example, if the facility A and the facility B are registered in the storage unit 15 of the intermediary terminal 30 itself, the intermediary terminal 30 is between the facility A and the facility B. Mediates communication.
Further, for example, if communication is possible independently between a plurality of facilities, the intermediary terminal 30 is not always necessary.

(4) In the above embodiment, in the electric power trading system 1, the distributed electric power is supplied and demanded from the electric power company 10 via the grid electric power line L1 for supplying the grid electric power. However, in order to be able to demand and supply distributed power between each facility, each facility may be connected by a power line L2 (not shown) separately from the grid power line L1. In this case, the distributed power may be traded via a separate power line L2 by independently communicating with the plurality of facilities.

(5) In the above embodiment, as shown in FIG. 1, the electric power trading system 1 includes only one electric power company 10. However, the electric power trading system 1 may include a plurality of electric power companies capable of supplying grid electric power. Each of the plurality of facilities that trade distributed power does not need to be supplied with grid power from the same power company, and may be supplied with grid power from different power companies.

(6) In the above embodiment, as shown in FIG. 2, the power generation device 23 is provided only in a part of the plurality of facilities, but the power generation device 23 is provided in all of the plurality of facilities. You may.

(7) In the present embodiment, the storage unit 15 of the management terminal 11 manages the contract information of each facility contracted with the electric power company 10, and the intermediary terminal 30 manages the electric power between the facilities based on the contract information. Coordinating transactions. However, a blockchain technique may be applied to the present invention in which the facility terminals 21 of the plurality of facilities each manage the contract information to guarantee the validity of the contract information to each other. In this case, it is not necessary to manage the contract information in the storage unit 15 of the management terminal 11 of the electric power company 10. Further, the intermediary terminal 30 is also unnecessary. Each facility confirms the contract information it holds, confirms that the facility on the demand side and the facility on the supply side have a contract with the electric power company 10, and then establishes an electric power transaction between the facilities. Communication may be performed.

It should be noted that the configurations disclosed in the above-described embodiments (including other embodiments, the same shall apply hereinafter) can be applied in combination with the configurations disclosed in the other embodiments as long as there is no contradiction. , The embodiments disclosed in the present specification are examples, and the embodiments of the present invention are not limited thereto, and can be appropriately modified without departing from the object of the present invention.

10: Electric power company 11: Management terminal 21: Facility terminal 21A: Facility terminal 21B: Facility terminal 23A: Power generation device 30: Mediation terminal 40: Network A: Facility B: Facility

Claims (6)

A power trading method in a power trading system including a management terminal that manages the supply of grid power of an electric power company and an intermediary terminal that mediates power trading between a plurality of facilities that receive the grid power.
At least one of the plurality of facilities has a power generation device that generates distributed power different from the system power.
A plurality of facility terminals arranged in each of the plurality of facilities to be supplied with the grid power, and a communication network for connecting communication between the plurality of facility terminals and the intermediary terminal are provided.
The intermediary terminal is
Includes information that identifies the second facility among the plurality of facilities as the supply side from the user of the first facility among the plurality of facilities via the first facility terminal arranged in the first facility. Moreover, the first request for supplying the distributed power generated by the power generation device of the second facility to the first facility is received, and the user of the second facility places the distributed power in the second facility. Upon receiving the second request for supplying the distributed power generated by the power generation device of the second facility to the first facility, the information including the information specifying the first facility as the supply destination is received via the second facility terminal.
When the first request and the second request match, the consent for the first request is transmitted to the first facility terminal, and the consent for the second request is transmitted to the second facility terminal.
A power trading method for adjusting the supply of distributed power generated by the power generation device of the second facility from the second facility to the first facility. In the power generation device of the second facility, when the distributed power generated by the power generation is larger than the distributed power supplied to the first facility and the surplus distributed power is generated, the surplus distributed power is used as the system power. The electric power trading method according to claim 1 , wherein the electric power is reversely flowed to the side. The power transaction according to claim 1 or 2 , wherein the distributed power generated by the power generation device of the second facility is insufficient from the distributed power supplied to the first facility, and the insufficient power is supplemented by the system power. Method. In at least one of the first requirement and the second requirement, the price, the supply amount, the power generated by solar power generation, the power generated by wind power generation, and the fuel for the distributed power generated by the power generation device of the second facility are satisfied. The distributed power addition condition in which at least one of the type of power including the power generated by the battery system, the designation of the distributed power supply time zone, and the environmental coefficient indicating the load on the environment is specified, the first facility, and the first facility and At least one of user-related information related to at least one user of the second facility and facility-related information related to at least one of the first facility and the second facility is included. The electric power trading method according to any one of claims 1 to 3 . The intermediary terminal is used from the second facility to the first facility terminal of the first facility that has received the distributed power supply and the second facility terminal of the second facility that has supplied the distributed power. The supply amount and price of distributed electric power supplied to the first facility, the type of electric power including the electric power generated by solar power generation, the electric power generated by wind power generation, and the electric power generated by the fuel cell system, the environmental coefficient indicating the load on the environment, and the above. The electric power trading method according to any one of claims 1 to 3 , wherein supply information including at least one of a distributed electric power supply time zone, a supply destination, and a supply source is transmitted. A power trading system including a management terminal that manages the supply of grid power of an electric power company and an intermediary terminal that mediates power transactions between a plurality of facilities that receive the grid power.
At least one of the plurality of facilities has a power generation device that generates distributed power different from the system power.
A plurality of facility terminals arranged in each of the plurality of facilities to be supplied with the grid power, and a communication network for connecting communication between the plurality of facility terminals and the intermediary terminal are provided.
The intermediary terminal is
Includes information that identifies the second facility among the plurality of facilities as the supply side from the user of the first facility among the plurality of facilities via the first facility terminal arranged in the first facility. Moreover, the first request for supplying the distributed power generated by the power generation device of the second facility to the first facility is received, and the user of the second facility places the distributed power in the second facility. Upon receiving the second request for supplying the distributed power generated by the power generation device of the second facility to the first facility, the information including the information specifying the first facility as the supply destination is received via the second facility terminal.
When the first request and the second request match, the consent for the first request is transmitted to the first facility terminal, and the consent for the second request is transmitted to the second facility terminal.
A power trading system that regulates the supply of distributed power generated by the power generation device of the second facility from the second facility to the first facility.

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