JP2020064490A - Energy transaction management system - Google Patents

Abstract

To provide an energy transaction management system which manages energy using a dispersion type transaction ledger.SOLUTION: An energy transaction management system has a dispersion type ledger system which manages input and output to/from portable type storage means and a user of the portable type storage means of energy that is stored in the portable type storage means and is used using a dispersion type transaction ledger. The dispersion type ledger system includes storage means 16 which stores the dispersion type transaction ledger, energy management means which records notification contents related to generation, transaction and consumption of the energy as a transaction in the dispersion type transaction ledger, and thereby manages a user of the portable type storage means and an energy storage amount in the portable type storage means, and token management means which records notification contents related to issuance, movement and dissipation of a token used in transaction of the energy as a transaction in the dispersion type transaction ledger, and thereby manages a token possessed by a user of the portable type storage means.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an energy trading management system, and more particularly to managing energy trading using a distributed trading ledger.

  In the past, a power generation company such as an electric power company generated electricity, but in recent years, it is possible to generate electricity even in a private home by utilizing solar power generation or the like.

  In addition, retail electric power companies such as electric power companies have conventionally sold and supplied electricity to ordinary households, buildings, factories, etc., but in recent years, individuals sell electricity to electric power companies through an aggregator. The form has also appeared. Further, since technological advances have made it possible to store a large amount of electricity in the electricity storage means, it has become possible to transfer (sell) electricity by moving the electricity storage means.

JP, 2008-33213, A International Publication No. 2017/067587

  As described above, with the variety of forms of energy generation and trading at present, it is desirable to enable accurate and efficient management of energy such as energy generation, consumption and trading.

  An object of the present invention is to manage energy management using a distributed transaction ledger.

  The energy transaction management system according to the present invention uses a distributed transaction ledger to input and output energy stored and used in a portable storage means to and from the portable storage means and a user of the portable storage means. It is characterized by having a distributed ledger system for managing.

  Further, the distributed ledger system includes a storage unit for storing the distributed transaction ledger and a user of the portable storage unit by recording the notification content regarding energy generation, transaction and consumption in the distributed ledger as a transaction. And an energy management unit that manages the amount of energy stored in the portable storage unit, and the content of the notification regarding the issuance, movement, and disappearance of tokens used for energy transactions, recorded as a transaction in the distributed transaction ledger. Token management means for managing the tokens held by the user of the portable storage means.

  When it is detected that the energy stored in the portable storage means is being illegally used by referring to the distributed transaction ledger, the energy stored in the portable storage means is changed. It is characterized by having a shutoff means for shutting off the supply.

  Further, the token management means is characterized in that a token corresponding to the amount of energy generated is issued to the generator, and a token corresponding to the amount of energy consumed is deleted from the tokens held by the consumer. .

  Further, the token management means adjusts the number of tokens issued to the energy generation means according to the handling status or the usage status of the energy even when the same amount of energy is generated by the energy generation means, and the energy generation means. Information about means is recorded in the distributed transaction ledger.

  Further, the portable storage means is a storage device capable of self-propelled or autonomously propelled.

  According to the present invention, it is possible to manage events related to energy, such as energy generation and consumption, and transactions such as energy sale and purchase performed between energy generation and consumption, using a distributed transaction ledger. .

  Further, it is possible to prevent unauthorized use of the energy stored in the portable storage means.

  Also, only the energy corresponding to the amount of tokens consumed can be consumed.

It is a conceptual diagram which shows the flow of the electric power exchanged between the persons who handle the electric power made into the management object of the electric power transaction management system in this Embodiment, a storage device, a token, and a generator. It is a figure which shows the list of the power generation systems which can be utilized in this Embodiment. It is a figure which shows an example of a structure of the installation type storage device in this Embodiment. It is a figure which shows an example of a structure of the portable storage device in this Embodiment. It is a figure which shows an example of a structure of the autonomous mobile storage device in this Embodiment. It is a figure which shows the electric power interruption circuit contained in the storage device of this Embodiment. It is a schematic block diagram of the block chain which the power transaction management system in this Embodiment handles. It is a figure which shows an example of the data item recorded in the transaction in this Embodiment. It is a figure which shows an example of the whole structure of the distributed ledger system in this Embodiment. It is a figure which shows another example of the whole structure of the distributed ledger system in this Embodiment. It is a figure which shows another example of the whole structure of the distributed ledger system in this Embodiment. It is a block configuration diagram of a node configuring the distributed ledger system in the present embodiment. FIG. 7 is a sequence diagram when charging the storage device with electric power in the present embodiment. FIG. 7 is a sequence diagram showing an example of a scene of power consumption by a consumer in the present embodiment. FIG. 9 is a sequence diagram showing another example of a scene of power consumption by a consumer in the present embodiment. FIG. 9 is a sequence diagram showing another example of a scene of power consumption by a consumer in the present embodiment. It is a sequence diagram which shows an example of the usage scene of the electric power when a storage device is mounted in an electric vehicle in the present embodiment. It is a sequence diagram when purchasing a generator and charging electric power in the present embodiment.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. There are various types of energy to be traded, such as electricity and gas, but in the present embodiment, a case of handling electricity (electric power) will be described as an example.

  FIG. 1 shows a generator 1, a consumer 2, a storage management company 3, an exchange station 4, and a generator manufacturing and sales as a person (handler) who handles the electric power to be managed by the electric power transaction management system in the present embodiment. Supplier 5 is shown. Electric power, a storage 6 for storing electric power, a token used for trading electric power, and a moving direction (flow) of a generator are indicated by different types of arrows among the operators. As the token flow shows, in the power transaction management system in the present embodiment, P2P (Peer to Peer) communication is performed.

  The “token” in the present embodiment is a virtual currency corresponding to electric power and is used when trading electric power. Of course, it can be used, for example, for purchasing goods as well as for trading electric power. Although it may be a variable token, in this embodiment, it is fixedly defined as, for example, 100 Wh = 1 token. The token is basically generated by generating electricity and charging the storage device 6, and an amount corresponding to the amount of generated electricity is issued. The token is also issued by charging the storage device 6 from the overhead power line without power generation, but the token can be exchanged for cash only when power is generated. In addition, the amount corresponding to the power consumption is eliminated. Tokens are managed by a blockchain (distributed transaction ledger), and are issued, distributed (moved), or deleted on the blockchain.

  The power generator 1 is a person who owns power generation means such as a power generator that generates electricity and sells electricity (electric power). The power generator 1 is typically an electric power company 1a and an individual power generator 1b as shown in FIG. The private power generator 1b may sell the electric power to the electric power company 1a. The power generator 1 generates power by any of the power generation methods illustrated in FIG. 2. The power generation method is environmentally friendly by utilizing nature such as solar heat and wind power when generating electricity, which is a power generation method that generates so-called clean energy and has the potential to adversely affect the environment by discharging harmful waste. Various power generation methods such as a certain power generation method are included.

  The consumer 2 is a person who directly or indirectly purchases and consumes power from the power generator 1. Representatives of the consumer 2 are a corporation 2a that uses building facilities and equipment and a private home 2b that is a residence, as shown in FIG. Although not included in the consumer 2 in FIG. 1, a business operator such as the storage management company 3 that uses electric power can also be the consumer 2 as the corporation 2a.

  The present embodiment is based on the method of charging the storage device 6 with electric power and selling it. In FIG. 1, the cylinder is drawn horizontally. The consumer 2 may purchase the power directly from the power generator 1, but in that case as well, the purchased power will be charged to the storage device 6 before being used. The storage device management company 3 is a business that lends the storage device 6 to the consumer 2 for a fee.

  The exchange station 4 is a business that replaces the storage device 6 that is empty of electric power with the storage device 6 that is fully charged. The generator manufacturer / distributor 5 is a business that manufactures a generator and sells it to the generator 1.

  FIG. 3A is a diagram showing an example of the configuration of the storage device 6 in the present embodiment. As described above, the storage device 6 is a storage unit that stores the electric power generated by the power generator 1. In the present embodiment, electric power is charged in the storage device 6 to be traded and used by the consumer 2. Electric power is stored in the secondary battery 61. The battery monitoring circuit 62 monitors charge / discharge of current in the secondary battery 61. The power circuit 63 discharges the secondary battery 61 and charges the secondary battery 61 via the connector 64. The communication module 65 connects to the wireless network via the antenna 66 and notifies the information about the charging / discharging of the secondary battery 61. The distributed ledger system records the notification content from the storage device 6 as a transaction. In this embodiment, wireless network communication is assumed, but wired connection to the network is also possible. The main computer 67 controls the operation of each component installed in the storage device 6. The above components are housed in the housing 68 of the storage device 6.

  FIG. 3B is a diagram showing another example of the configuration of the storage device 6 in the present embodiment. The storage device 6 shown in FIG. 3B has a configuration in which tires 69 are attached to both ends of the housing 68 of the storage device 6 shown in FIG. 3A as a transportable means for allowing the storage device 6 to be transported. That is, the storage device 6 shown in FIG. 3A is of a stationary type because no portable means is provided, whereas the storage device 6 of FIG. 3B is of a portable type.

  FIG. 3C is a diagram showing another example of the configuration of the storage device 6 in the present embodiment. The storage device 6 illustrated in FIG. 3C has a configuration in which a motor 70 that rotates a tire 69 and a motor driver 71 that drives the motor 70 are added inside a housing 68 of the storage device 6 illustrated in FIG. 3B. ing. The main computer 67 controls the operation of the motor driver 71 according to an instruction from the outside or a predetermined program to cause the storage device 6 to run autonomously. That is, the storage device 6 shown in FIG. 3B is a portable type that is mounted in a vehicle or moved by being towed, whereas the storage device 6 shown in FIG. 3C is a mobile type that is self-propelled by a motor 70 and a motor driver 71. The storage device 6 is also a portable storage device 6 capable of autonomous traveling under the traveling control by the main computer 67.

  In this embodiment, any type of reservoir 6 may be used. However, if the storage device 6 that is portable or capable of autonomous traveling is used, it becomes possible to transport electric power to the land where there is no system overhead line, so it is possible to sell the power to consumers located in places where the system overhead line is not available. It will be possible. In addition, a consumer who is located in a place without a system overhead line can use it by purchasing electric power without newly drawing a system overhead line.

  FIG. 4 is a diagram showing a power cutoff circuit included in the storage device 6. FIG. 4 shows the current / voltage sensor 621 and the relay circuit 72 as components of the power cutoff circuit. The current / voltage sensor 621 detects the current / voltage of the secondary battery 61. The relay circuit 72 switches ON / OFF of the connection between the power circuit 63 and the connector 64 under the control of the battery monitoring circuit 62. Although details will be described later, in the present embodiment, when a person who is not a user of the storage device 6 attempts to use the electric power stored in the storage device 6, that is, when an unauthorized use of the electric power is detected, the power is shut off. The circuit cuts off the supply of power from the storage 6 to prevent unauthorized use of power.

  The storage device 6 may be purchased from the storage device management company 3 and may be used by leasing or the like instead of being used. That is, by purchasing the storage device 6, the owner and the user of the storage device 6 may be the same, or by renting the storage device 6 from a leasing company or the like, the owner of the storage device 6 and the user can be matched. You don't have to do it. For convenience of explanation, the following explanation will be made assuming that the holder and the user of the storage device 6 are the same.

  The distributed ledger system according to the present embodiment is constructed by using a so-called block chain, which is also called a distributed transaction ledger technology or a distributed network. As described above, in the present embodiment, the electric power is charged into the storage device 6 before it is used. However, the distributed ledger system in the present embodiment uses the electric power input / output (charge and discharge) to the storage device 6 and storage. The feature is that the transaction of electric power is managed by managing the information on the transaction of the storage device 6 (electric power) such as the movement of the user of the container 6 using the block chain. Since tokens circulate on the blockchain, they also manage tokens used for power transactions and the like.

  FIG. 5 is a diagram showing a configuration example of a block chain. Similar to a general block chain, a block chain is formed by connecting data units called "blocks" like a chain. The blockchain can be said to be a database that stores data. Each block is stored in each node. Therefore, the block can be called a node.

  When information about power generation, transactions, power consumption, etc. is notified, the content of the notification is recorded as a transaction in any block of the block chain. Further, when the information about the token such as issuance, movement and disappearance of the token used for power transaction is notified, the content of the notification is recorded as a transaction in any block of the block chain. The distributed ledger system determines the block in which the block is generated and the transaction is recorded by using the existing technology.

  As described above, the content of the transaction relating to electric power is recorded in the transaction, and the recorded content is encrypted by the hash function. Then, it is generated by electronically signing it with the owner's private key, including the address of the destination. In addition, each block includes a nonce value and a hash value of the immediately preceding block.

  The issue of blockchain is that it becomes long and the amount of information becomes huge, but long-term storage does not make sense because there is a decrease in electric power due to natural discharge. Therefore, the corresponding block may be deleted after a lapse of a predetermined period, for example, one year, after charging. Alternatively, a block chain may be configured in a plurality of servers, and blocks that have passed a long time may be separately retained and managed therein.

  FIG. 6 is a diagram showing an example of data items recorded in a transaction according to the present embodiment. A transaction does not always include all these items, but the necessary items are set according to the content of the transaction.

  7A to 7C are diagrams showing an example of the overall configuration of the distributed ledger system according to the present embodiment. The distributed ledger system is formed by a plurality of nodes, and each block stores each block. Then, the distributed transaction ledger, that is, the block chain functions by the cooperation operation of each node.

  FIG. 7A shows an example in which a node is composed of only the storage device 6. FIG. 7B shows an example of a case where the storage device 6 and the PC 7 form a node. The PC 7 may be any computer within the power trade management system, such as the computer used by the power handler shown in FIG. In FIG. 7C, the storage 6 and the PC 7 are shown, but an example in which a node is composed of only the PC 7 is shown. In this embodiment, any node configuration shown in FIGS. 7A to 7C may be used.

  The method of consensus formation for forming blocks in the blockchain changes depending on the node configuration. Since the storage device 6 is formed so as to establish a network with the storage device 6, the configuration shown in FIG. 7A is relatively safer than the security. Therefore, the right to generate the block may be acquired by any of the storage devices 6. Alternatively, if the one that has been charged and discharged a lot has the generation right, or if the processing speeds of the main computers 67 of all the storage devices 6 are the same, a hash value that can be searched can be set in a short time, for example, about 1 minute. , A nonce value may be searched for. In the configuration shown in FIG. 7B, the block creation right is determined in the storage device 6, and the block chain may be held by all the nodes. The method of selecting the block generation right in this configuration may be the same as that in the node configuration shown in FIG. 7A. When granting the generation right to the PC 7, it may be a proof of walk that is given to the one having the largest number of times of charge and discharge, or a proof of work that searches for a nonce value by setting a hash value that can be searched in about 10 minutes. In the node configuration shown in FIG. 7C, the node (PC 7) manages the information of the plurality of storage devices 6. The block generation right may be the same as in the case of the node configuration shown in FIG. 7B.

  FIG. 8 is a block configuration diagram of the nodes configuring the distributed ledger system in the present embodiment. The node 10 is a computer formed by the storage device 6 or the PC 7 as described above. The storage device 6 has a main computer 67 built therein. The computer has a CPU, a ROM, a RAM, an HDD and a storage as a storage unit. It also has a communication interface (“communication module 65” of the storage device 6) for performing wired or wireless network communication with another node 10. A user interface may be provided if necessary.

  The node 10 includes a power management unit 11, a token management unit 12, a communication processing unit 13, a power control unit 14, a control unit 15, and a storage unit 16. Note that components not used in the description of this embodiment are omitted from the drawings. The power management unit 11 records the notification content related to the generation, transaction, and consumption of power as a transaction in a block in the storage unit 16 so that the power user can use the storage device 6 and the remaining power amount (storage amount) in the storage device 6. ) Etc. are managed. The token management unit 12 is possessed by the user of the storage device 6 charged with electric power by recording the notification content regarding the issuance, movement, and disappearance of the token used for the power transaction as a transaction in the block in the storage unit 16. Manage tokens. The communication processing unit 13 communicates with other nodes 10 and the storage device 6 that is not the node 10. When the power control unit 14 receives an electric power use request, and if an unauthorized use of the electric power stored in the storage device 6 is detected from the recorded contents of the distributed transaction ledger (block chain), the storage device 6 concerned. Controls to cut off the power supply from the. The control unit 15 manages power and tokens in cooperation with the operation control of each of the components 11 to 14 and the control unit of another node 10. Blocks are stored in the storage unit 16.

  Each of the constituent elements 11 to 15 in the node 10 is realized by a cooperative operation of a computer included in the node 10 and a program operating by a CPU mounted on the computer. The storage unit 16 is realized by a storage unit or a RAM included in the node 10.

  The program used in the present embodiment can be provided not only by communication means but also by being stored in a computer-readable recording medium such as a USB memory. The program provided from the communication unit or the recording medium is installed in the computer, and the CPU of the computer sequentially executes the program to realize various processes.

  Next, the operation of this embodiment will be described with reference to the sequence diagrams shown in FIGS. 9 to 14.

  In each sequence diagram, the processing in which the processing block has the shape of the reservoir 6 as in step 101 indicates the physical movement of the reservoir 6. Further, a dashed arrow extending from the processing block indicates a notification to the distributed ledger system of information regarding power transactions or information regarding tokens. In the distributed ledger system, although the processing block is not shown, when a notification is received from the power handler, the power management unit 11 or the token management unit 12 executes a process of recording the notification content as a transaction in the block chain. In the following description, the description of the notification to the distributed ledger system and the recording of the transaction to the block chain in the distributed ledger system will be omitted as appropriate.

  Since the storage management company 3 operates an exchange, it also serves as an exchange for trading tokens. The storage device 6 may have both a function as a node of the distributed ledger system and a function as a storage device, but each sequence diagram shows a case where it functions as a storage device. When functioning as a node, that function is included in the distributed ledger system.

  As described above, in the present embodiment, the storage 6 is charged with electric power and the charged electric power is used. Therefore, in order to use the electric power, it is necessary to first charge the storage device 6 with the electric power. Therefore, a process of charging the storage device 6 with electric power in the present embodiment will be described with reference to the sequence diagram shown in FIG. In addition, regarding the movement of the storage device 6, each operator such as the storage device management company 3 and the power generator 1 (if the operator is a business entity, an employee of the business entity, etc.) delivers the storage device 6 or Carry out procedures. The transfer of tokens to the distributed transaction ledger is basically recorded by any of the nodes 10 included in the distributed ledger system.

  First, the storage device management company 3 rents out an empty storage device 6, that is, a storage device 6 in a state where electric power is not charged, to the power generator 1 for a fee (step 101). Upon receiving the empty storage device 6, the power generator 1 charges the empty storage device 6 until it is fully charged (step 301). When the generator 1 notifies the distributed ledger system of information (information to be recorded in the transaction shown in FIG. 6) regarding the storage device 6 being in a fully charged state, the distributed ledger system causes the distributed ledger system to generate power. A token corresponding to the amount of power generation is issued (step 201). The power generator 1 acquires a token as the power is generated and the storage 6 is charged. Generation of sufficient amount of power to fill the empty storage 6 and issuance of a token are recorded as a transaction. Then, the power generator 1 pays the lending fee for the storage device 6 with the acquired token (step 302). As a result, the storage container management company 3 receives the fee for lending out the empty storage container 6.

  In this way, the person who has rented the storage device 6 from the storage device management company 3 pays a fee by token as a consideration for the loan. Payment need not be limited to tokens, and other means such as cash may be used. Here, an example is shown in which the fee is paid when electric power is generated, but the timing of paying the fee does not have to be particularly limited. For example, the storage device 6 may be rented, the token may be purchased, power may be generated or consumed, the storage device 6 may be replaced, or payment may be made at a plurality of timings.

  Subsequently, the power generator 1 can sell the fully charged storage device 6 to the operator, but here, a person who has an empty storage device 6 (a storage device owner) and a storage device are stored. The case of replacing the container 6 will be described as an example. The reservoir holders are the consumer 2, the reservoir management company 3 and the exchange station 4. In order to replace the storage device 6, the power generator 1 sends a request to replace the storage device 6 (storage device replacement request) to the distributed ledger system (step 303). When the distributed ledger system permits replacement in response to the storage device replacement request (step 202), the power generator 1 sends the storage device 6 in a fully charged state to the storage device holder (step 304).

  Strictly speaking, an employee of the electric power company who is the power generator 1 or an individual power generator sends a storage device replacement request to the distributed ledger system using a PC or the like, while a distributed ledger system receives the storage device replacement request. One of the nodes 10 included in the above will return information indicating permission in response to this request, but for convenience of explanation, the generator 1 sends the storage device exchange request as described above, and the distributed ledger system Will be allowed and will be stated in a simplified form. The same applies to various requests sent from the respective operators described below to the distributed ledger system.

  On the other hand, the storage holder sends the empty storage 6 to the power generator 1 (step 401). In this way, when the storage 6 is exchanged, the storage holder pays the obtained electricity charge for the stored storage 6 with the token (step 402). The holder of the storage device is assumed to hold the token for payment in a transaction such as purchasing in cash. Alternatively, means other than tokens such as cash may be used.

  Here, when the power generator 1 wants to redeem the tokens it has, it sends a request (token redemption request) to the decentralized ledger system to exchange money (step 305). When the distributed ledger system permits the exchange of money in response to the token exchange request (step 203), the power generator 1 sends the token to the storage management company 3 functioning as an exchange to make it cash (step 306). The generator 1 notifies the distributed ledger system of the movement of the token. The storage management company 3 may notify the distributed ledger system.

  As described above, the electric power is charged in the storage device 6 and sold, and then, an example of the usage scene of the electric power by the consumer will be described with reference to the sequence diagram shown in FIG. 10. In addition, the same step number is given to the same process, and the description will be appropriately omitted.

  First, the storage device management company 3 lends the storage device 6 in a fully charged state to the consumer 2 for a fee (step 111). The storage management company 3 has previously acquired the storage 6 in a fully charged state from the power generator 1. Although it is assumed that the electricity bill is paid with a token, means other than the token such as cash may be used.

  Subsequently, the consumer 2 purchases the token from the exchange (step 511). The purchase of the token by the consumer 2 is notified to the distributed ledger system and recorded as a transaction.

  Subsequently, the consumer 2 sends a power use request to the distributed ledger system before starting to use the power (step 512). For example, when the consumer 2 connects an electric device to the storage device 6 to use electric power, the storage device 6 transmits a power use request to the distributed ledger system at the timing when the connection of the electric device to the connector 64 is detected. You may do it.

  When the distributed ledger system receives the power usage request, it refers to the block chain to check whether the power is illegally used. For example, if the consumer 2 is trying to use the storage 6 that he / she has not acquired, or if the consumer 2 is trying to use the storage 6 that he / she has acquired, he / she does not have enough tokens to use the power. The case where this is confirmed corresponds to the illegal use of electric power.

  When the distributed ledger system detects from the transaction history of the power recorded as the transaction and the transaction history of the token that the power stored in the storage device 6 is about to be illegally used, it does not permit the use of the power. The consumer 2 sends the message to the storage device 6 to be used.

  In response to the notification, the main computer 67 in the storage device 6 instructs the battery monitoring circuit 62 to cause the relay circuit 72 to disconnect the connection between the power circuit 63 and the connector 64. As a result, the supply of the electric power stored in the storage device 6 to the electric device is cut off, and the unauthorized use of the electric power can be prevented.

  The relay circuit 72 normally controls the connection between the power circuit 63 and the connector 64 in the off state, that is, the cutoff state, and is controlled to switch to the on state only after the use permission is sent from the distributed ledger system. .

  In the above description, the consumer 2 (reservoir 6) is described as sending a power use request to the distributed ledger system by using the connection of the electrical device to the connector 64 as a trigger. However, for example, the current / voltage sensor 621 is a secondary battery. The timing of detecting the change in the power amount of 61 (timing of start of power usage) may be used as a trigger, and the power usage request may be sent to the distributed ledger system at this timing.

  As described above, according to the present embodiment, under the control of the distributed ledger system, the distributed ledger system and the storage device 6 cooperate to prevent the unauthorized use of electric power.

  On the other hand, when the unauthorized use of power is not detected, the distributed ledger system sends a permission to use power to the consumer 2 (reservoir 6) (step 211).

  When the use of electric power is permitted by the distributed ledger system, the consumer 2 can use the electric power stored in the storage device 6. When the power of the storage 6 is consumed, the token corresponding to the consumed amount will disappear (step 513). In other words, only the amount of power corresponding to the amount of consumed (disappeared) tokens can be consumed. As described above, in the case of the present embodiment, the amount of tokens to be extinguished and the power consumption amount are associated with each other as defined as, for example, 100 Wh = 1 token.

  By the way, the power generator 1 receives a fully charged storage device 6 from the storage device management company 3. Therefore, the consumer 2 pays the lending fee for the storage device 6 with the purchased token (step 514). As a result, the storage management company 3 receives the fee for renting out the fully charged storage 6. Thus, FIG. 10 shows an example in which a fee is paid when power is consumed.

  It is assumed that the electric power stored in the storage device 6 is zero by consuming the electric power, that is, the so-called storage device 6 becomes empty. Consumer 2 purchases a token from the exchange for replenishment of power (step 515). Then, the consumer 2 requests the electric power company 1a to supplement electric power (step 516). In response to this request, the electric power company 1a supplies electric power to the storage device 6 held by the consumer 2 (step 611).

  As a result, the storage device 6 owned by the consumer 2 is charged with electric power (step 517). Then, the consumer 2 pays the electric power company 1a with a token according to the amount of electric power supplied (step 518). The electricity bill may use means other than tokens such as cash.

  Next, another example of the power usage scene of the consumer 2 will be described with reference to the sequence diagram shown in FIG. In addition, the same step number is given to the same process, and the description will be appropriately omitted.

  When the electric power stored in the storage device 6 becomes zero, FIG. 10 illustrates the case where the fully charged storage device 6 is obtained by purchasing electricity from the electric power company. Here, a case where a fully charged storage device 6 is obtained by exchanging the storage device 6 with the exchange station 4 will be described.

  In FIG. 11, the storage device 6 becomes empty as the consumer 2 consumes power, and the process up to the step of purchasing a token from the exchange (step 515) may be the same as in FIG.

  Subsequently, the consumer 2 sends a request for replacing the storage device 6 to the distributed ledger system (step 521). In response to this request, the distributed ledger system sends an exchange permission to the consumer 2 (reservoir 6) (step 221).

  When the distributed ledger system permits replacement of the reservoir 6, the consumer 2 moves the empty reservoir 6 to the exchange station 4 (step 522). When the empty storage 6 is sent, the exchange station 4 moves the fully charged storage 6 to the consumer 2 who is the sending source (step 721).

  When the fully charged storage device 6 is sent, the consumer 2 pays the electricity company 1a with a token according to the amount of electric power for the fully charged state (step 518). The electricity bill may use means other than tokens such as cash.

  Next, another example of the power usage scene of the consumer 2 will be described with reference to the sequence diagram shown in FIG. In addition, the same step number is given to the same process, and the description will be appropriately omitted.

  In the case where the electric power stored in the storage device 6 becomes zero, FIGS. 10 and 11 describe the case where the fully charged storage device 6 is obtained by purchasing electricity from the outside. Here, a case will be described in which a power generator owned by the consumer 2, that is, a case in which electricity is generated by itself to obtain the fully charged storage device 6. In the present embodiment, it is assumed that the consumer 2 is a private home and solar power is installed in the private home, that is, the consumer 2 is also the power generator 1.

  In FIG. 12, the process may be the same as that in FIG. 10 until the storage device 6 becomes empty due to the consumption of power by the consumer 2, and thus the description thereof is omitted. Then, when the consumer 2 connects the storage device 6 to the power generator (photovoltaic power generation) owned by the consumer 2, the power generator supplies the power to the storage device 6 owned by the consumer 2 (step 531). As a result, the storage device 6 owned by the consumer 2 is charged with electric power (step 532).

  By the way, when the power is generated and the storage 6 is charged by itself, the token is issued. Therefore, the distributed ledger system issues a token in an amount corresponding to the amount of electric power generated by the generator (step 231), and the consumer 2 acquires this issued token.

  In this way, the consumer (individual consumer) 2 who is a private home can obtain the amount of tokens commensurate with the amount of power generated by himself using solar power generation.

  Next, an example of an electric power usage scene when the storage device 6 is installed in an electric vehicle will be described with reference to the sequence diagram shown in FIG. In addition, the same step number is given to the same process, and the description will be appropriately omitted. In FIG. 11, the consumer 2 is assumed to be a private home, but here, the consumer 2 is a user of an electric vehicle (hereinafter also referred to as “EV”), and the storage device 6 is installed in the electric vehicle. The following describes the case of use.

  The storage device management company 3 rents out the storage device 6 in a fully charged state to the consumer 2 for a fee (step 111), but the storage device 6 will be installed in an electric vehicle and used (step 541). ). After that, since the electric vehicle consumes electric power and the storage device 6 is in an empty state, the process until the storage device 6 is requested to be replaced and the storage device 6 is permitted may be the same as in FIG.

  Subsequently, the user of the electric vehicle moves the empty storage device 6 to the exchange station 4 (step 542). When the empty storage 6 is sent, the exchange station 4 moves the fully charged storage 6 to the consumer 2 who is the sending source (step 721).

  When the fully charged storage device 6 is sent, the user of the electric vehicle mounts it on the electric vehicle (step 543). Then, the electricity bill according to the amount of electric power for the full charge is paid to the electric power company 1a by the token (step 518). The electricity bill may use means other than tokens such as cash.

  Next, an example of a scene in which the power generator 1 purchases a power generator from the power generator manufacturer / distributor 5 will be described using the sequence diagram shown in FIG. 14. In addition, the same step number is given to the same process, and the description will be appropriately omitted.

  First, the process until the power generator 1 acquires a token by fully charging the empty storage device 6 borrowed from the storage device management company 3 is the same as in FIG. Subsequently, the generator 1 requests the generator manufacturer / distributor 5 to additionally purchase the generator (step 351), and the generator manufacturer / distributor 5 delivers the generator in response to the request (step 851). . Then, the power generator 1 pays with a token as the price of the power generator (step 352).

  Subsequently, the generator manufacturer / distributor 5 requests the electric power company 1a to supplement electric power (step 852). In response to this request, the electric power company 1a supplies electric power to the storage device 6 owned by the consumer 2 (step 651). As a result, the storage 6 held by the generator manufacturer / distributor 5 is charged with electric power (step 853). Then, the generator manufacturer / distributor 5 pays the electric power company 1a with a token according to the amount of electric power supplied (step 854). The electricity bill may use means other than tokens such as cash.

  As described above, using the sequence diagrams shown in FIGS. 9 to 14, the processing such as the use of the storage device 6 (charging and consumption of electricity) and the token flow has been described. The storage devices 6 may be moved in an appropriate combination. As described above, according to the present embodiment, all exchanges (events) related to power, such as power generation and consumption, transactions such as power sale and purchase performed between power generation and consumption, are blocked. It can be managed using a chain.

  By the way, in the above description, the exchange ratio between the power amount and the token is constant (for example, 100 Wh = 1 token), and the change in the exchange ratio is not particularly mentioned. However, even if the same amount of electric power is generated by the power generator 1, the exchange ratio may be changed by adjusting the number of tokens issued to the power generator 1 according to the handling status or usage status of the power. The contents of this adjustment are naturally recorded in the distributed ledger system.

  For example, the distributed ledger system changes the amount of tokens to be issued according to the method of power generation even if the same amount of power is generated for power generation. For example, the amount of tokens to be issued may be different depending on whether the storage device 6 is generated by itself and charged, or when it is charged by being supplied with power from the system overhead line. In this case, the amount of tokens is increased toward the former, which generates electricity by itself. For example, 90 Wh = 1 token and more tokens than usual are issued for the power generation amount. By adjusting the number of tokens issued in this way, it is possible to promote in-house power generation such as solar power generation.

  Further, the exchange ratio may be changed depending on the power generation method. For example, even if the same amount of electric power is generated, more tokens are issued for a power generation method that generates clean energy than a power generation method that may adversely affect the environment. As a result, it is possible to promote a power generation method that generates clean energy.

  When charging the storage device 6, the power generation source may be determined by acquiring the information (for example, the authentication ID of the power generation source) identifying the power generation source via the connector 64.

  On the other hand, the distributed ledger system may change the amount of tokens consumed (disappeared) depending on the method of charging and consuming, even when charging and consuming the same amount of power, regarding charging and consuming of electric power. For example, the amount of disappearance of the token that normally or slowly charges the storage device 6 is made smaller than the rapid charge. For example, in the case of 100 Wh = 1 token, if the battery is charged slowly even with the same charge amount, 110 Wh = 1 token, that is, a small amount of tokens are extinguished. Regarding the consumption of electric power, the amount of disappearance of the token that is consumed normally or little by little is made smaller than that when a large amount of electric power is consumed from the storage device 6. This can reduce the load on the storage device 6 and promote energy saving.

  The battery monitoring circuit 62 monitors the input / output current to detect the amount of electric power charged and consumed in the storage device 6 per unit time.

  Alternatively, it is assumed that the electric vehicle equipped with the storage device 6 detours to the destination in order to avoid traffic congestion. In this case, the amount of tokens to be extinguished with respect to the consumed power is reduced relatively by cooperating with the avoidance of traffic jam. Whether or not the vehicle is traveling avoiding congestion can be determined based on traffic information (congestion information) and the traveling history of the electric vehicle.

  Further, in addition to changing the token issuance amount by the above-described storage device 6 and environmentally friendly charging and consumption, for example, the electric power stored in the storage device 6 is reduced by natural discharge, so this time-dependent factor The token may be naturally extinguished in consideration of the above.

  In the present embodiment, electricity has been described as an example of energy, but any energy that can be stored in the storage means such as gas may be applied to that energy.

1 generator, 1a electric power company, 1b individual generator, 2 consumer, 2a corporation, 2b private house, 3 storage management company, 4 exchange station, 5 generator manufacturer and distributor, 6 storage, 10 node, 11 electric power Management unit, 12 token management unit, 13 communication processing unit, 14 power control unit, 15 control unit, 16 storage unit, 61 secondary battery, 62 battery monitoring circuit, 63 power circuit, 64 connector, 65 communication module, 66 antenna, 67 main computer, 68 housing, 69 tire, 70 motor, 71 motor driver, 72 relay circuit, 621 current and voltage sensor.

Claims (6)

  A distributed ledger system for managing the input and output of energy stored and used in the portable storage means with respect to the portable storage means and the users of the portable storage means by using a distributed transaction ledger. And energy trading management system. The distributed ledger system,
Storage means for storing the distributed transaction ledger,
Energy management means for managing the user of the portable storage means and the amount of energy stored in the portable storage means by recording the notification content regarding energy generation, transaction, and consumption as a transaction in the distributed transaction ledger,
Token management means for managing tokens held by users of the portable storage means by recording in the decentralized transaction ledger the notification contents relating to issuance, movement and disappearance of tokens used for energy trading,
The energy trade management system according to claim 1, further comprising:   When it is detected by referring to the distributed transaction ledger that the energy stored in the portable storage means is about to be illegally used, the energy supply from the portable storage means is stopped. The energy trade management system according to claim 1, further comprising a shutoff means for shutting off.   The token management means issues a token according to the amount of energy generated to the generator, and deletes a token according to the amount of energy consumed from the tokens held by the consumer. The energy trading management system described in 2.   The token management means adjusts the number of tokens issued to the energy generation means according to the energy handling status or the usage status even when the same amount of energy is generated by the energy generation means, and also relates to the energy generation means. The energy transaction management system according to claim 4, wherein information is recorded in the distributed transaction ledger. The energy transaction management system according to claim 1, wherein the portable storage means is a self-propelled or autonomously-propelled storage device.