WO2020053985A1

WO2020053985A1 - Power transaction system, power transaction method, and program

Info

Publication number: WO2020053985A1
Application number: PCT/JP2018/033788
Authority: WO
Inventors: 尚也木下
Original assignee: 中国電力株式会社
Priority date: 2018-09-12
Filing date: 2018-09-12
Publication date: 2020-03-19
Also published as: JPWO2020053985A1; JP6533964B1

Abstract

This power transaction device for performing a power transaction between a consumer and a power supplier comprises: an acquisition unit for receiving, from a first transaction device, power purchase amount information indicating a power purchase amount of the consumer at prescribed times in the present or the past, and for receiving, from a second transaction device, power sell amount information indicating a power sell amount of the power supplier; a contract determination unit for determining whether a contract for a power transaction between the consumer and the power supplier can be established on the basis of the power purchase amount and the power sell amount at a prescribed electricity charge unit price at the prescribed times; and a settlement unit for settling the power transaction between the consumer and the power supplier if the contract determination unit has determined that the contract for a power transaction can be established, the power transaction being settled by a prescribed virtual currency on the basis of the prescribed electricity charge unit price, the power purchase amount information, and the power sell amount information.

Description

Power trading system, power trading method, program

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

電力 As disclosed in Patent Document 1, for example, a power aggregator system that controls the amount of power demanded by a consumer is known.

JP 2016-167191 A

The system disclosed in Patent Literature 1 calculates a surplus amount of power calculated based on a total value of received power amounts that can be reduced by a consumer device and a requested power amount requested by an electric power provider to a power aggregator. , In the negawatt trading market. In this system, the power shortage that occurs when the total value of the received power is less than the required power is bidding and bidding in the Posi-Watt transaction market.
However, in the system disclosed in Patent Literature 1, the profitability of the power aggregator can be improved by bidding the above-mentioned surplus power amount and shortage power amount of the customer in each power trading market. It is not assumed that the required power amount and the generated power amount generated by the generator will be directly traded in virtual currency. Therefore, this system cannot solve the problem of an increase in the burden caused by the need for the retail electric power company to purchase the surplus power of the power generation equipment using natural energy or the like which is expected in the future.

The main invention for solving the above-described problem is an electric power trading device for performing electric power transaction between a customer and a generator, and shows the amount of power purchased by the customer at a predetermined time at present or in the past. An acquisition unit that receives the purchased power amount information from the first transaction device, and receives the power sale amount information indicating the power sales amount of the generator from the second transaction device, and a predetermined electricity rate unit price at the predetermined time, Based on the purchased power amount and the sold power amount, a contract determination unit that determines whether a power transaction between the customer and the power generator is contracted, and that the power transaction is contracted in the contract determination unit. If it is determined, the power transaction between the customer and the generator is settled in a predetermined virtual currency based on the predetermined unit price of electricity, the amount of purchased power, and the amount of power sold. A settlement unit.
Other features of the present invention will become apparent from the accompanying drawings and the present specification.

According to the present invention, since optimal power transactions can be realized substantially directly between a consumer and a generator, the amount of power generated by the generator can be reduced without increasing the financial burden on the retail electricity provider. We can sell electricity properly.

It is a figure showing an example of a system system of a power transaction system. FIG. 3 is a diagram illustrating an example of a hardware configuration of a first transaction device. It is a figure showing an example of the software composition of the 1st dealing device. It is a table | surface which shows an example of a power purchase electric energy information table. It is a table | surface which shows an example of a customer payment information table. It is a figure showing an example of hardware constitutions of the 2nd dealing device. It is a figure showing an example of the software composition of the 2nd dealing device. It is a table | surface which shows an example of a power selling electric energy information table. It is a table | surface which shows an example of a generator payment information table. FIG. 2 is a diagram illustrating an example of a hardware configuration of a power trading device. FIG. 3 is a diagram illustrating an example of a software configuration of the power trading device. It is a table | surface which shows an example of an electricity rate unit price information table. It is a table | surface which shows an example of a contract information table. It is a table | surface which shows an example of a power purchase electric energy information table. It is a table | surface which shows an example of a customer payment information table. It is a table | surface which shows an example of a power selling electric energy information table. It is a table | surface which shows an example of a generator payment information table. It is a flowchart which shows an example of the contract procedure of the electric power transaction by an electric power trading system.

、 At least the following matters will be made clear by the description in this specification and the accompanying drawings. In the following description, portions denoted by the same reference numerals represent the same elements, and the basic configuration and operation are the same.

=== Electricity trading system 1 ===
FIG. 1 is a diagram illustrating an example of a system of the power trading system 1. As shown in FIG. 1, the power trading system 1 includes a first transaction device 10 that acquires purchased power information indicating a purchased power amount of a load facility 110 of a customer 100, and a power sale of a power generation facility 210 of a generator 200. While transmitting and receiving various kinds of information between the second transaction device 20 that acquires the power sales information indicating the power, and the first transaction device 10 and the second transaction device 20, between the consumer 100 and the generator 200 And a power trading device 30 for executing power trading.

Here, the power purchase amount is, for example, the power consumption amount of the consumer, and the power sale amount is, for example, the power generation amount of the generator. The load facility 110 is, for example, a load facility installed in a house or a factory, and the power generation facility 210 is, for example, a power generation facility using natural energy such as a solar power generation facility or a wind power generation facility, Power generation equipment such as steam power generation using a generator.

In the power trading system 1, it is preferable to transmit and receive various information via the blockchain network 400. Thereby, the contents of various types of information are not falsified, and the integrity and security of the information are ensured. In FIG. 1, since the power trading system 1 is schematically illustrated, the first trading device 10 and the second trading device 20 are illustrated one by one, but a plurality of load facilities 110 and a plurality of power generating facilities 210 are provided. The first transaction device 10 and the second transaction device 20 may be disposed in the load facility 110 and the power generation facility 210, respectively.

The power trading system 1 includes, for example, power purchase amount information acquired by the first transaction device 10, power sale amount information acquired by the second transaction device 20, and unit price information indicating a unit price of electricity at a predetermined time. On the basis of the same amount of power, a function is provided for establishing a power transaction between the customer 100 and the power generator 200. Further, the power trading system 1 has a function capable of completing payment between the customer 100 and the generator 200 when the power trading is completed.

The simultaneous power amount handled by the power trading system 1 is, for example, an actual power amount every 30 minutes in a predetermined time. Thereby, in the power trading system 1, since the demand and the supply of the power are handled at the same time, the power trading can be established without causing imbalance in the power supply and demand.

The time zone of the power trading in the power trading system 1 is not particularly limited. For example, in a case where the power generator 200 is limited to a person who owns the solar power generation facility, the time period from sunrise to sunday such as 7:00 to 16:00 It is preferable to be in the time zone until the sunset.

In the power trading system 1, when the power transaction is not executed between the customer 100 and the power generator 200, the retail electricity supplier 300 executes the power transaction for supplying the required power to the customer 100, and It has a configuration to execute a power transaction for purchasing surplus power from 200 to guarantee stable power supply and demand. As will be understood from this, the power trading system 1 has a configuration that can be realized in the current power transmission contract.

Hereinafter, each component of the above-described power trading system 1 will be described in detail.

== First Transaction Device 10 ==
The first transaction device 10 is a device that transmits the power purchase amount information of the customer 100 to the power transaction device 30 via the blockchain network 400. The first transaction device 10 acquires power purchase electric energy information from the route B of the smart meter 120 installed in the customer 100. However, first transaction device 10 may acquire the purchased power amount information from the A route or the C route.

FIG. 2 is a diagram illustrating an example of a hardware configuration of the first transaction device 10. As shown in FIG. 2, the hardware of the first transaction device 10 includes a processor 11, a memory 12, a storage device 13, an input device 14, an output device 15, and a communication device 16. ing. The processor 11 is, for example, an MPU, a CPU, or the like. The memory 12 is, for example, a RAM, a ROM, an NVRAM, or the like. The storage device 13 is, for example, a RAM, a ROM, an NVRAM, or the like. The input device 14 is a user interface that receives an operation input from a user, and is, for example, an operation input device (a keyboard, a mouse, a touch panel, or the like), a voice input device (a microphone, or the like), or the like. The output device 15 is a user interface that provides various types of information to the user, and is, for example, a display device (such as a liquid crystal monitor) or an audio output device (such as a speaker). The communication device 16 is an interface for connecting to the blockchain network 400, and is, for example, a wireless LAN adapter, a NIC (Network Interface Card), or the like.

FIG. 3 is a diagram showing an example of a software configuration of the first transaction device 10. As shown in FIG. As shown in FIG. 3, the software of the first transaction device 10 has functional units of an acquisition unit 10a, an order processing unit 10b, and a payment processing unit 10c. These functional units are realized by, for example, the processor 11 of the first transaction apparatus 10 reading and executing a program stored in the memory 12, and the processor 11 executes the program stored in the external storage medium. It may be realized by reading and executing, or for example, by hardware such as an ASIC.

The first transaction device 10 has a function of storing various information input from the power transaction device 30 and various information processed by the above-described respective functional units in various tables of the storage device 13.

Specifically describing the various tables, the storage device 13 stores a purchased power amount information table 10d illustrated in FIG. 4 and a customer payment information table 10e illustrated in FIG. In the power purchase electric energy information table 10d, the electric power purchase and the generator (the partner of the power purchase) of each customer 100 at a predetermined time are associated with each other. In the customer pay-in / pay-out information table 10e, the pay-in information, the pay-out information, and the current balance information at a predetermined time of each customer 100 are associated with each other. The numerical values shown in each table show an example. “G” in FIGS. 4 and 5 indicates that the power generator is the retail electricity supplier 300.

Hereinafter, each functional unit of the first transaction apparatus 10 will be described in detail.

The acquisition unit 10a is a functional unit that acquires power purchase energy information from the smart meter 120 and various types of information from the power transaction device 30 via the communication device 16. The various information obtained by the obtaining unit 10a is output to each functional unit.

The order processing unit 10b is a functional unit that processes a power purchase order from the customer 100. The order processing unit 10b transmits, via the communication device 16, for example, power purchase order information indicating a buy order to the power trading device 30 every 30 minutes. In the power purchase order information, a power transaction in which a unit price of electricity is specified (hereinafter, referred to as a “limit transaction” and an order for performing the “limit transaction” is referred to as a “limit order”), or the unit price of the electricity is not specified. Information indicating which type of power trading at a market price (hereinafter, referred to as “market trading” and an order to perform “market trading” as “market order”) is included. The power purchase order information may be created based on, for example, an input from an operator to the input device 14 of the first transaction apparatus 10, or may be automatically generated based on a preset time interval. May be created. When a power transaction is executed by the power trading apparatus 30, the order processing unit 10b outputs various types of information received from the power trading apparatus 30 to the storage device 13 to create the power purchase power information table 10e shown in FIG. .

The payment processing unit 10c is a functional unit that executes a payment process from the customer 100 to the power transaction device 30 and a payment process from the customer 100 to the power generator 200. Here, the payment process is a process in which the power transaction device 30 records the amount of money deposited into the power generator 200 in association with the power generator 200. The withdrawal process is a process in which the customer 100 remits a power purchase fee corresponding to the amount of purchased power purchased from the generator 200 to the generator 200 from the customer 100 via the power transaction device 30. . The payment processing and the payment processing are processed via the blockchain network 400 using, for example, Japanese Yen tokens. The deposit and withdrawal processing unit 10c outputs the results of the deposit and withdrawal processing to the storage device 13 in order to create the customer withdrawal and deposit information table 10f shown in FIG. Thereby, information on when and how much money is received, how much money is transferred to which generator 200, and how much is the current balance is arranged.

== Second transaction device 20 ==
The second transaction device 20 is a device that transmits the power sale information of the power generator 200 to the power transaction device 30 via the blockchain network 400. The second transaction device 20 obtains power sales information from the route B of the smart meter 220 installed in the generator 200. However, the second transaction device 20 may acquire the power sales information from the A route or the C route.

FIG. 6 is a diagram illustrating an example of a hardware configuration of the second transaction device 20. Note that the hardware configuration of second transaction device 20 is the same as the hardware configuration of first transaction device 10, and a description thereof will be omitted.

FIG. 7 is a diagram illustrating an example of a software configuration of the second transaction device 20. As shown in FIG. 7, the software of the second transaction device 20 includes functional units of an acquisition unit 20a, an order processing unit 20b, and a deposit / withdrawal processing unit 20c. These functional units are realized by, for example, the processor 21 of the second transaction apparatus 20 reading and executing a program stored in the memory 22. The processor 21 executes the program stored in the external storage medium. It may be realized by reading and executing, or for example, by hardware such as an ASIC.

The second transaction device 20 has a function of storing various information input from the power transaction device 30 and various information processed by the above-described respective functional units in various tables of the storage device 23.

Specifically, the storage device 23 stores an electric power sales information table 20d illustrated in FIG. 8 and a generator deposit / withdrawal information table 20e illustrated in FIG. In the power sale information table 20d, the power sale amount of each of the power generators 200 at a predetermined time is associated with a partner (a customer) of the power sale. In the generator deposit / withdrawal information table 20e, the deposit information, the withdrawal information, and the current balance information at the predetermined time of each generator 200 are associated with each other. The numerical values shown in each table show an example. In addition, “G” in FIG. 8 and FIG. 9 indicates that the other party to sell power is the retail electricity supplier 300.

Hereinafter, each functional unit of the second transaction device 20 will be described in detail.

The acquisition unit 20a is a functional unit that acquires electric power sales amount information from the smart meter 220 and various types of information from the electric power trading device 30 via the communication device 26. The various information obtained by the obtaining unit 20a is output to each functional unit.

The order processing unit 20b is a functional unit that processes a power selling order from the power generator 200. The order processing unit 20b transmits power selling order information indicating a selling order to the power trading apparatus 30 via the communication device 26, for example, every 30 minutes. The power selling order information includes information indicating a limit transaction and information indicating a market transaction. The power selling order information may be created based on, for example, an input from an operator to the operation input device of the second transaction apparatus 20, or may be automatically generated based on a preset time interval. May be created. When the power trading is executed in the power trading device 30, the order processing unit 20b outputs various information received from the power trading device 30 to the storage device in order to create the power selling power information table 20d shown in FIG.

The payment processing unit 20c is a functional unit that executes a payment processing from the consumer 100 to the power generator 200 via the power trading device 30, and a payment processing from the power generator 200 to the retail electricity supplier 300. Here, the depositing process is a process of depositing a power selling rate according to the amount of power sold by the generator 200 to the customer 100 from the customer 100 to the generator 200 via the power trading device 30. The depositing process also includes a process in which the generator 200 records the deposit amount in the power transaction device 30. The withdrawal process is a process of remittance from the generator 200 to the retail electricity supplier 300 via the power transaction device 30. The payment processing and the payment processing are processed via the blockchain network 400 using, for example, Japanese yen tokens. The deposit and withdrawal processing unit 20c outputs the results of the deposit and withdrawal processing to the storage device 23 in order to create the generator deposit and withdrawal information table 20e shown in FIG. In this way, information as to when and how much money is received from which customer 100, how much money is transferred from which customer 100 to which generator 200, and how much is the current balance is arranged.

== Electricity transaction device 30 ==
The power transaction device 30 is a device for executing a power transaction between the customer 100 and the power generator 200. The power transaction device 30 is communicably connected to the first transaction device 10 and the second transaction device 20 via the blockchain network 400. The power transaction device 30 may be a single device, a plurality of devices, or cloud computing. Further, the electric power trading apparatus 30 is communicably connected to, for example, a management apparatus 310 owned by the retail electric utility 300. The management device 310 is a device that checks whether various tables of the power trading device 30 described later have been tampered with. Note that the management device 310 does not need to be installed, and a person instead of the management device 310 may check whether various tables of the power transaction device 30 have been tampered with.

The power trading apparatus 30 is configured to determine whether the customer 100 and the generator are based on the amount of power purchased by the customer 100, the amount of power sold by the generator 200, and the unit price of electricity at a predetermined time of the power transaction. It is determined whether or not a power transaction is executed between the power supply and the power supply 200. If the power trading apparatus 30 determines that the power trading is executed, the power trading apparatus 30 equals a power purchase rate corresponding to the purchased power amount or a power sales rate corresponding to the sold power amount to the customer 100 and the generator 200, which will be described later. Send a Japanese Yen token. When it is determined that the power transaction is not executed, the power trading apparatus 30 performs a process in which the retail electricity supplier 300 sells power to the customer 100 and purchases power from the power generator 200. Thus, at any time, the power transaction can be reliably executed for the amount of power purchased by the customer 100 and the amount of power sold by the generator 200. Hereinafter, a hardware configuration and a software configuration of the power trading device 30 will be described.

FIG. 10 is a diagram illustrating an example of a hardware configuration of the power trading apparatus 30. As shown in FIG. 10, the hardware of the power transaction device 30 includes a processor 31, a memory 32, a storage device 33, an input device 34, an output device 35, and a communication device 36. I have. The processor 31 is, for example, an MPU, a CPU, or the like. The memory 32 is, for example, a RAM, a ROM, an NVRAM, or the like. The storage device 33 is, for example, a RAM, a ROM, an NVRAM, or the like. The input device 34 is a user interface that receives an operation input from a user, and is, for example, an operation input device (a keyboard, a mouse, a touch panel, or the like), a voice input device (a microphone, or the like). The output device 35 is a user interface that provides various types of information to the user, and is, for example, a display device (such as a liquid crystal monitor) or an audio output device (such as a speaker). The communication device 36 is an interface for connecting to the blockchain network 400, and is, for example, a wireless LAN adapter, an NIC, or the like.

FIG. 11 is a diagram illustrating an example of a software configuration of the power trading apparatus 30. As shown in FIG. 11, the software of the power trading device 30 has functional units of an acquisition unit 30a, a charge calculation unit 30b, a contract determination unit 30c, a transaction guarantee unit 30d, and a settlement unit 30e. These functional units are realized, for example, by the processor 31 of the electric power trading apparatus 30 reading and executing a program stored in the memory 32. Note that these functional units are realized by, for example, hardware such as an ASIC, but may be realized by the processor 21 reading and executing a program stored in an external storage medium. , ASIC, or the like.

The power transaction device 30 has a function of storing various information input from the first transaction device 10 and the second transaction device 20 and various information processed by the above-described functional units in various tables of the storage device 33.

The storage device 33 stores an electricity rate unit price information table 30f illustrated in FIG. 12, a contract information table 30g illustrated in FIG. 13, a purchased power information table 30h illustrated in FIG. 14, and a demand illustrated in FIG. A house deposit / withdrawal information table 30i, a power selling electric energy information table 30j illustrated in FIG. 16, and a generator deposit / withdrawal information table 30k illustrated in FIG. 17 are stored. In the electricity rate unit price information table 30f, the electricity rate unit price at a predetermined time is associated with the amount of power sold and the amount of power purchased for an order for the predetermined unit price of electricity. In the transaction contract information table 30g, the contract status of each customer 100, each power generator 200, and a retail power generation event person at a predetermined time is associated with each other numerically as an example. In the power purchase electric energy information table 30h, the electric power purchase and the other party (power generator) of the electric power purchase at a predetermined time of each customer 100 are associated with each other. In the customer pay-in / pay-out information table 30i, the pay-in information, the pay-out information, and the current balance information at a predetermined time of each customer 100 are associated with each other. In the power sale electric energy information table 30j, the power sale electric energy of each of the power generators 200 at a predetermined time is associated with a partner (customer) of the power sale. In the generator deposit / withdrawal information table 30k, the deposit information, the withdrawal information, and the current balance information at a predetermined time of each generator 200 are associated with each other. Although the various information tables in FIGS. 13 to 17 have been described as being created separately, they may be created as one information table.

Hereinafter, each functional unit of the power trading apparatus 30 will be described in detail.

The acquisition unit 30a is a functional unit that acquires power purchase energy information from the first transaction device 10 and acquires power sale energy information from the second transaction device 20 via the communication device 36. The various information obtained by the obtaining unit 30a is output to each functional unit.

The charge calculating unit 30b is a functional unit that calculates a unit price of electricity at a predetermined time based on the information on the amount of power purchased and the information on the amount of power sold. The charge calculating unit 30b calculates a unit price of the electric charge based on a balance between the amount of purchased electric power and the amount of sold electric power. In other words, the unit price of electricity increases as the amount of purchased power is larger than the amount of sold power, and the unit price of electricity decreases as the amount of sold power is greater than the amount of purchased power. Here, the balance between the purchased power amount and the sold power amount on the power trading system is hereinafter referred to as power supply and demand.

FIG. 12 is a diagram exemplifying the order status of the purchased power amount and the sold power amount at a predetermined time. The order status shown in FIG. 12 is the same as a so-called “threat board” indicating the order status of stock. At a certain point in time, the amount of purchased power (right side in FIG. 12) and the amount of sold power (FIG. 12 left). The order status shown in FIG. 12 changes with the elapse of time in accordance with the increase or decrease in the amount of purchased power or the amount of sold power. The customer 100 or the power generator 200 can appropriately determine whether to place a limit order or a market order by referring to the order status shown in FIG. In addition, in the case of a limit order, it is possible to appropriately determine the limit amount, and in the case of a market transaction, it is possible to predict how much the contract will be executed. The transaction price of power sale and purchase of electricity as a reference of the unit price of electricity at a predetermined time is the unit price of electricity indicated in the center of the column of "unit price of electricity".

The contract determination unit 30c is a functional unit that determines whether the power purchase order of the consumer 100 based on the power purchase order information and the power sales order of the generator 200 based on the power sale order information are contracted. More specifically, for example, from 13:00 to 13:30, the customer 100 purchases “16 Japanese yen token” indicating the unit price of electricity by limit trading and “10 kWh token” indicating the amount of purchased power. In response to the order, when the power generator 200 has a power sale order of “16 Japanese yen token” indicating the unit price of electricity by limit trading and a power sale order of “10 kWh token” indicating the power sales amount, the contract determination unit 30 c Fill orders and sell orders. At this time, when the customer 100 or the generator 200 trades in a market order, the contract determination unit 30c does not consider the unit price of electricity (the most advantageous electricity for the customer 100 and the generator 200 at the market price at that time). It is determined whether or not the contract is made based on the purchased power amount and the sold power amount. Further, the purchased power amount and the sold power amount do not need to match with each other. For example, when the purchased power amount is “5 kWh token” and the sold power amount is “10 kWh token”, the contract determination unit 30 c It may be determined that the contract has been made for the amount of “5 kWh token” of the electric energy.

The contract determination unit 30c terminates the power transaction between the customer 100 and the power generator 200 when a predetermined time has elapsed from a predetermined time. When there is a surplus power amount or a shortage amount on the power trading system 1 when the power transaction is completed, the retail electric power company 300 purchases the surplus power amount and sells the shortage amount as described below. The transaction assurance unit 30d executes the power transaction.

The transaction assurance unit 30d has a function of complementing the power transaction in order for the retail electricity supplier 300 to balance the power supply and demand when the power supply and demand of the purchased power and the sold power are imbalanced at a predetermined time. Department.

More specifically, for example, when the total of the purchased power amount information transmitted by all the first transaction devices 10 on the power transaction system 1 is “25,000 kWh token”, all the second transaction devices 20 When the sum of the transmitted power sales information is “20,000 kWh token”, the purchased power exceeds the sold power. In this situation, the transaction assurance unit 30d sets the retail electric utility 300 at a predetermined first electricity rate unit price so that the retail electric utility 300 compensates for the difference between the amount of power purchased and the amount of power sold. A contract procedure for selling the purchased power to the customer 100 is executed. Here, the first electricity rate unit price is preferably set higher than a general electricity rate unit price. Accordingly, the customer 100 purchases power at a higher power purchase price unit price than the normal electricity price unit price, but can reliably purchase power.

Further, for example, when the sum of the power purchase information transmitted by all the first transaction devices 10 on the power transaction system 1 is “20,000 kWh token”, the power sale transmitted by all the second transaction devices 20 When the total of the power information is “30,000 kWh tokens”, the power sold exceeds the power purchased. In this situation, the transaction assurance unit 30d sets the retail electric utility 300 to a predetermined second electricity rate unit price so that the retail electric utility 300 compensates for the difference between the amount of power sold and the amount of power purchased. A contract procedure for purchasing power sold from the generator 200 is executed. Here, the second electricity rate unit price is preferably set lower than a general electricity rate unit price. As a result, the power generator 200 sells power at a discounted electricity price unit price lower than the normal electricity price unit price, but can surely sell power.

According to these procedures, even if an imbalance occurs between the amount of purchased power and the amount of sold power at a predetermined time, the retail power company 300 complements the power supply and demand so as to balance the power supply and demand. Can be secured. In addition, the retail electricity supplier 300 purchases surplus electricity at a low price from the generator 200 at the time of purchase of surplus electricity due to imbalance in electricity supply and demand, and sells the surplus electricity so that the retail electricity supplier 300 also has an advantage. At the time of power generation, the power is sold to the customer 100 at a high price.

The settlement unit 30e is a functional unit that performs settlement with virtual currency based on contract information indicating a contract situation illustrated in FIG. The virtual currency means a digital currency, and the type is not limited. The settlement unit 30e, based on the power purchase amount of the customer 100 associated with the contract information, and the electricity price unit price (including the first electricity rate unit price) at the contracted time, based on the power purchase price (extra high power purchase). (Including the unit price of electricity), and based on the amount of electricity sold by the generator 200 associated with the contract information and the unit price of electricity (including the unit price of the second electricity) at the contracted time. (Including bargain sale unit price). Specifically, if the purchased power amount is “10 kWh” and the unit price of the electricity is “16 yen / kWh”, the purchased price is “160 yen”. The same can be calculated for the power sale fee. The settlement unit 30e stores the power purchase fee and the power sale fee in the storage device 33. The settlement unit 30e transmits the power purchase fee to the first transaction device 10 as a negative Japanese yen token, and transmits the power sale fee to the second transaction device 20 as a positive Japanese yen token. Thereby, the information on the power transaction stored in the storage device 33 of the power transaction device 30, the information on the power transaction stored in the storage device 13 of the first transaction device 10, and the storage device of the second transaction device 20 Since information about the power transaction stored in the storage device 23 matches the information, the information can be matched.

In FIG. 1, the power transaction device 30 is illustrated as implementing one of the above-described functional units with one information processing device (computer), but the present invention is not limited to this. For example, each of the functional units described above may be configured to be implemented in a distributed manner by two or more information processing apparatuses.

=== Contract Procedure for Electricity Trading ===
FIG. 18 is a flowchart illustrating an example of a procedure for executing a power transaction by the power trading system 1. With reference to FIG. 18, a power trading contract procedure in the power trading system 1 will be described.

The power trading system 1 realizes power trading between the customer 100 and the power generator 200 at predetermined time intervals (for example, every 30 minutes). The power trading device 30 of the power trading system 1 determines whether or not the power trading is executed by acquiring various information from the first trading device 10 of the consumer 100 and the second trading device 20 of the power generator 200. At the same time, processing is performed so that the supply and demand of electric power is balanced. Hereinafter, a specific description will be given of a procedure for executing a power transaction at a predetermined time. In the following, for convenience of description, as shown in FIG. 1, a predetermined customer 100 among a plurality of consumers is representatively extracted, and a predetermined generator 200 among a plurality of generators is representatively extracted. The extraction procedure will be described below.

First, the acquisition unit 10a of the first transaction device 10 acquires power purchase energy information from the B route of the smart meter 120 connected to the load facility 110 of the customer 100 (S1). The first transaction device 10 converts the purchased power amount information into a negative power amount token (S2). The order processing unit 10b of the first transaction device 10 transmits the negative power amount token to the power transaction device 30 together with the power purchase order information (including information indicating the limit transaction or the market transaction) (S3). At this time, the customer 100 may select power trading by a limit order or power trading by a market order.

取得 Further, the acquisition unit 20a of the second transaction device 20 acquires the power sales information from the B route of the smart meter 220 connected to the power generation facility 210 (such as a solar power generation facility) of the power generator 200 (S4). The second transaction device 20 converts the power sale electric energy information into a positive electric energy token (S5). The order processing unit 20b of the second transaction device 20 transmits the positive power amount token to the power transaction device 30 together with the power sale order information (including information indicating the limit transaction or the market transaction) (S6). At this time, the power generator 200 may select power trading based on a limit order, or may select power trading based on a market order.

Specifically, for example, between 11:00 and 11:30, when the customer 100 generates “10 kWh” of purchased power and the generator 200 generates “20 kWh” of sold power, The first transaction device 10 attaches the power purchase order information to the “−10 kWh token” as a negative power amount token and transmits the information to the power transaction device 30, and the second transaction device 20 transmits the “−10 kWh token” as a positive power amount token. The power sale order information is attached to the “+20 kWh token” of the above and transmitted to the power trading apparatus 30.

The charge calculation unit 30b of the power trading device 30 calculates the unit price of the electricity charge based on the minus power token (power purchase information) and the plus power token (power sale information) as illustrated in FIG. It is calculated (S7). The basis for calculating the electricity rate unit price is the same as that described in the fee calculation unit 30b, and thus the description thereof will be omitted.

The contract determination unit 30c of the power trading device 30 determines the power based on the negative power amount token, the positive power amount token, the power purchase order information of the consumer 100, and the power sale order information of the power generator 200. It is determined whether or not the transaction is executed (S8). The procedure for determining whether or not to execute a contract is the same as that described for the contract determination unit 30c, and thus the description thereof is omitted.

When the contract determination unit 30c determines that the power transaction is contracted (S8: YES), the settlement unit 30e of the power trading apparatus 30 determines the demand based on the negative power amount token and the unit price of electricity in the customer 100. The power purchase price of the house 100 is calculated, and the power sale price of the power generator 200 is calculated based on the positive power amount token and the electricity price unit price in the power generator 200. The method of calculating the power purchase fee and the power sale fee is the same as that described in the settlement unit 30e, and a description thereof will be omitted.

The settlement unit 30e transmits the negative Japanese yen token indicating the power purchase fee to the first transaction device 10 and transmits the positive Japanese yen token indicating the power sale fee to the second transaction device 20 (S9, S10). Further, the settlement unit 30e transmits a positive power amount token corresponding to the power amount purchased by the customer 100 to the first transaction apparatus 10, and the negative power amount corresponding to the power amount sold by the generator 200. The token is transmitted to the second transaction device 20 (S9, S10). Thereby, the first transaction device 10 can create the information tables shown in FIGS. 4 and 5, and the second transaction device 20 can create the information tables shown in FIGS. 8 and 9. The settlement unit 30e can create FIGS. 14 to 17 by storing the various types of information described above in the storage device.

When the contract determination unit 30c determines that the power transaction is not contracted (S8: NO), the transaction guarantee unit 30d of the power trading device 30 determines the negative power amount token and the predetermined first electricity in the customer 100. Based on the unit price of electricity, an expensive power purchase price of the consumer 100 is calculated, and the cheap power sale of the generator 200 based on the positive power amount token and the second unit price of electricity in the generator 200. The charge is calculated (S11). The method of calculating the power purchase fee and the power sale fee is the same as that described in the settlement unit 30e, and a description thereof will be omitted.

The settlement unit 30e transmits a negative Japanese yen token indicating an expensive power purchase fee to the first transaction device 10, and transmits a positive Japanese yen token indicating a cheap power sale fee to the second transaction device 20 (S12). , S13). Further, the settlement unit 30e transmits a positive power amount token corresponding to the power amount purchased by the customer 100 to the first transaction apparatus 10, and the negative power amount corresponding to the power amount sold by the generator 200. The token is transmitted to the second transaction device 20 (S12, S13). Thereby, the first transaction device 10 can create the information tables shown in FIGS. 4 and 5, and the second transaction device 20 can create the information tables shown in FIGS. 8 and 9. In addition, since the settlement unit 30e stores the various types of information described above in the storage device 33, the power trading device 30 can create the various types of information tables illustrated in FIGS.

=== Summary ===
As described above, the power trading device 30 according to the present embodiment is a power trading device 30 for performing power trading between the customer 100 and the power generator 200, and is a power trading device 30 at a current or past predetermined time. An acquisition unit 30a that receives, from the first trading device 10, purchased power information indicating the purchased power amount of the consumer 100, and receives from the second trading device 20 power sales information indicating the sold power amount of the generator 200; A contract determination unit 30c that determines whether or not a power transaction between the customer 100 and the power generator 200 is contracted based on the purchased power amount and the sold power amount at a predetermined electricity rate unit price at a predetermined time. When the contract determination unit 30c determines that the power transaction is contracted, the power transaction between the customer 100 and the generator 200 is performed based on a predetermined unit price of electricity, purchased power, and sold power. Zu Te, and a settlement unit 30e to settle at a predetermined virtual currency. According to the present embodiment, it is determined whether or not a power transaction is executed based on the amount of power purchased by the consumer 100 and the amount of power sold by the generator 200. In the case of execution, the settlement is made in virtual currency. While ensuring security, it is possible to conduct a power transaction between the customer 100 and the power generator 200 substantially directly. Thereby, the generator 200 can not only sell the amount of power sold to the retail electricity company 300 but also sell the power directly to the customer 100, and the customer 100 can transfer the amount of purchased power from the retail electricity company 300 Since the power can be purchased directly from the generator 200 as well as the power purchase, an optimal power transaction can be performed.

The power transaction device 30 according to the present embodiment further includes a charge calculation unit 30b that calculates the predetermined unit price of electric power based on the amount of power purchased and the amount of power sold at a predetermined time. According to the present embodiment, since the market price of the unit price of electricity can be calculated from the amount of purchased power and the amount of sold power at a predetermined time, an optimal unit price of electricity can be set according to the supply and demand of electricity.

Further, when the power transaction device 30 according to the present embodiment determines that the power transaction is not contracted by the contract determination unit 30c, the power transaction device 30 converts the purchased power amount into the retail power business at the first power rate unit price different from the predetermined power unit price. Further includes a transaction assurance unit 30d that purchases power from the buyer 300 and sells the amount of power sold to the retail electricity supplier 300 at a second electricity price unit price different from the predetermined electricity price unit price. The power transaction is settled in a predetermined virtual currency based on the first electricity rate unit price, the second electricity rate unit price, the purchased power amount, and the sold power amount. According to the present embodiment, when the power transaction is not executed, the retail power company 300 purchases the purchased power amount and sells the sold power amount, so that a stable power trading market can be formed.

{Circle around (1)} The first electricity rate unit price handled by the transaction guarantee unit 30d of the electricity transaction apparatus 30 according to the present embodiment is higher than a predetermined electricity rate unit price. According to the present embodiment, it is possible for the retail electricity provider 300 to enjoy profit when purchasing power. This makes it easier for the retail electricity supplier 300 to participate in the electric power transaction, so that the electric power trading system 1 can be easily constructed.

The second electricity rate unit price handled by the transaction guarantee unit 30d of the electricity transaction apparatus 30 according to the present embodiment is lower than the predetermined electricity rate unit price. According to the present embodiment, it is possible for the retail electricity provider 300 to enjoy profit when selling electricity. This makes it easier for the retail electricity supplier 300 to participate in the electric power transaction, so that the electric power trading system 1 can be easily constructed.

The power transaction device 30 according to the present embodiment is a device that communicates with the first transaction device 10 and the second transaction device 20 via the blockchain network 400. According to the present embodiment, falsification and the like can be avoided, so that safe power transactions can be secured.

{Circle around (1)} The first transaction device 10 according to the present embodiment receives the amount of power sold for a predetermined time from the route B of the smart meter 120. According to the present embodiment, the power purchase information can be acquired in real time, so that a delay in power trading can be prevented.

Note that the above-described embodiment is for the purpose of facilitating the understanding of the present invention, and is not for limiting and interpreting the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention also includes equivalents thereof.

1 Power Trading System 10 First Trading Device 20 Second Trading Device 30 Power Trading Device 30a Acquisition Unit 30b Charge Calculation Unit 30c Contract Determination Unit 30d Transaction Guarantee Unit 30e Settlement Unit 100 Customer 120 Smart Meter 200 Generator 300 Retail Electricity Provider 400 blockchain network

Claims

A power trading device for performing power trading between a customer and a generator,
At a predetermined time in the current or past time, the purchased power amount information indicating the purchased power amount of the consumer is received from the first trading device, and the sold power amount information indicating the sold power amount of the generator is received from the second trading device. An acquisition unit;
A contract determination for determining whether or not a power transaction between the customer and the power generator is contracted based on the purchased power amount and the sold power amount at a predetermined electricity rate unit price at the predetermined time. Department and
When it is determined that the power transaction is contracted in the contract determination unit, for the power transaction between the customer and the generator, the predetermined unit price of electricity, the purchased power amount, and the sold power amount, A settlement unit that performs settlement with a predetermined virtual currency based on the
A power transaction device comprising:
The power transaction device, at the predetermined time, based on the purchased power amount and the sold power amount, a charge calculation unit that calculates the predetermined electricity unit price,
The power transaction device according to claim 1, further comprising:
The power trading device,
When the contract determination unit determines that the power transaction is not contracted, the purchased power amount is purchased from a retail electric power company at a first power rate unit price different from the predetermined power rate unit price, and the predetermined power rate is determined. A transaction assurance unit that sells the sold electric energy to the retail electricity provider at a second electricity rate unit price different from the unit price,
The settlement unit setstle the power transaction in the predetermined virtual currency based on the first electricity rate unit price, the second electricity rate unit price, the purchased power amount, and the power sale amount. The power transaction device according to claim 1 or 2, wherein:
The power transaction device according to any one of claims 1 to 3, wherein the first electricity rate unit price is higher than the predetermined electricity rate unit price.
The power transaction device according to any one of claims 1 to 4, wherein the second electricity price unit price is lower than the predetermined electricity price unit price.
A first transaction device that transmits purchased power information indicating a purchased power amount in a customer;
A second transaction device that transmits electric power sales information indicating the amount of electric power sold by the generator,
The power purchase information transmitted from the first transaction device and the power sale information transmitted from the second transaction device are received, according to any one of claims 1 to 5. The power trading device;
A power trading system comprising:
The power transaction system according to claim 6, wherein the power transaction device is a device that communicates with the first transaction device and the second transaction device via a blockchain network.
The power trading system according to claim 6, wherein the first transaction device receives a power sale amount for a predetermined time from a route B of a smart meter.
Computer
At a predetermined time in the present or in the past, purchased electric energy information indicating the amount of electric power purchased by the consumer is received from the first transaction device, and electric power sold information indicating the electric power sold by the generator is received from the second trading device. An acquisition step;
Contract determination for determining whether or not a power transaction between the customer and the power generator is contracted based on the purchased power amount and the sold power amount at a predetermined electricity rate unit price at the predetermined time. Steps and
When it is determined that the power transaction is contracted in the contract determination step, for the power transaction between the customer and the generator, the predetermined unit price of electricity, the amount of purchased power, and the amount of power sold, A settlement step for performing settlement with a predetermined virtual currency based on the
Power trading method to realize.
On the computer,
At a predetermined time in the current or past time, the purchased power amount information indicating the purchased power amount of the consumer is received from the first trading device, and the sold power amount information indicating the sold power amount of the generator is received from the second trading device. Acquisition function,
A contract determination for determining whether or not a power transaction between the customer and the power generator is contracted based on the purchased power amount and the sold power amount at a predetermined electricity rate unit price at the predetermined time. Features and
When it is determined that the power transaction is contracted in the contract determination function, regarding the power transaction between the customer and the generator, the predetermined unit price of electricity, the purchased power amount, and the sold power amount, A payment function for performing payment with a predetermined virtual currency based on the
The program that realizes.