Token control system and token control server

Abstract

To achieve both a requirement that electricity and an environmental value are integrally transferred and a requirement that an environmental value is transferred from a power generation business operator directly to a user without passing through an accumulator battery or the like.SOLUTION: In a token control system, a block chain 5 comprises: a token generation unit 51 that generates an electric token and an environmental value token on the basis of power generation performance information for power derived from reproduction energy; and a transfer control unit 52 that controls transfer of the electric and environmental value tokens on the basis of charging and discharging / consumption performance information. A token control server 4 allows only electric tokens to be transferred based on performance information, and transfers an environmental value token in conjunction with an electric token when allocating it to a user, and not in conjunction with an electric token when power is allocated to an accumulator battery or the like. Thus, when electricity is used by a user, the electric and environmental value tokens are integrally transferred, whereas when electricity is accumulated into an accumulator battery or the like, only the electric token is transferred to the accumulator battery or the like and the environmental value token is left for a power generation business operator.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a token control system and a token control server, and is particularly suitable for use in a system and a server that perform control related to the generation and transfer of ownership of electric tokens and environmental value tokens.

Background Art

[0002] As an effort to reduce greenhouse gas emissions in the power field, power generation companies are promoting the use of renewable energy such as solar and hydro power (hereinafter referred to as renewable energy). The use of renewable energy is also expanding in the business activities of companies, and the circulation of renewable energy certificates has begun as a proof of the use of electricity derived from renewable energy. In addition to the value of the energy generated by the electricity itself, electricity derived from renewable energy has a value of reducing greenhouse gas emissions, which is called environmental value. A renewable energy certificate is a certificate obtained by separating the environmental value from electricity, and it is possible to trade only the environmental value of electricity derived from renewable energy. By purchasing a renewable energy certificate, it is regarded that electricity derived from renewable energy has been procured, and it is possible to contribute to efforts to reduce greenhouse gas emissions.

[0003] In the effort to reduce greenhouse gas emissions by purchasing renewable energy certificates, in order to manifest the environmental value of electricity derived from renewable energy and trade it as a renewable energy certificate, it is necessary to prove that the electricity is derived from renewable energy. On the other hand, a system has been proposed in which an environmental value token, which is value information regarding environmental value, is issued together with an electric power trading token, which is value information regarding electric power, and these tokens are exchanged between a seller and a buyer to establish a trading transaction of electric power and its added value (see, for example, Patent Document 1).

[0004] In the system described in Patent Document 1, power trading tokens are issued based on the amount of power generated and the power generation method. The salable power is accumulated in a power trading token pool as power trading tokens equivalent to that power and is bought and sold through the token pool. Ultimately, these power trading tokens are purchased by consumers, etc. as the right to use (consume) power. The consumers, etc. who have purchased them can use power equivalent to the power trading tokens and, by actually consuming the power, the power trading tokens equivalent to the consumed power are canceled. The power trading tokens are associated with origin information such as the amount of power, the power generation method (such as solar power generation or wind power generation), the power generation location, and the power generation time when the power is generated. Furthermore, as additional information, related token information such as environmental value tokens derived from the power trading tokens and transaction histories including transfer histories due to buying, selling, etc. are also associated and retained.

[0005] Also, together with the power trading tokens of the generated power, environmental value tokens, which are value information corresponding to the contribution degree of each power generation method and power storage method to the environment, are generated. The environmental value tokens are tokens that are calculated and issued according to the contribution degree to the environment, such as the amount of self-consumed power and the amount of CO 2 reduction. These environmental value tokens are canceled when transferred, and a transfer history that records the date and time when the transfer was executed, the transfer source, the transfer destination, the value (consideration amount) at the time of transfer, and other transaction histories is issued, and the issued transfer history becomes the subject of transfer transactions. The transfer history of these environmental value tokens records the value of the canceled environmental value tokens and the issuer, and the transfer destination by transfer transactions is added as a transaction history each time there is a transfer.

[0006] By the way, when tracking the flow of a series of electrical and environmental values from the power generation equipment related to renewable energy until it is supplied to consumers, in addition to being able to identify that the electricity used by consumers is derived from renewable energy, it is desirable to be able to flexibly associate electricity with environmental values. For example, when utilizing environmental values, it is assumed that the proof of environmental values is sold in a set with electricity from power generation businesses to retail electricity businesses, so it is desirable to be able to transfer environmental values and electricity in a set from power generation businesses to consumers. Also, since environmental values are recognized based on the amount of electricity generated from renewable energy, it is desirable to be able to transfer environmental values directly from power generation businesses to consumers without passing through distributed energy resources such as storage batteries and electric vehicles.

[0007] However, Patent Document 1 does not mention functions that satisfy these needs. That is, in the system described in Patent Document 1, when electricity is generated, an environmental value token is generated together with a power trading token, and the value of the token, etc. is controlled based on the performance data of the amount of electricity stored or consumed. However, after generation, the environmental value token can be freely traded separately from the power trading token. Therefore, it is not possible to provide a mechanism for flexibly associating and trading electricity and environmental values that satisfies both the requirement for the integrated transfer of electricity and its environmental value and the requirement for the transfer of only environmental values without passing through distributed energy resources.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0009] The present invention has been made to solve such problems, and an object thereof is to provide a flexible trading mechanism that can satisfy both the requirement for the integrated transfer of electricity and environmental value and the requirement for the transfer of environmental value directly from a power generation company to a consumer without passing through distributed energy resources.

Means for Solving the Problems

[0010] In order to solve the above-described problems, in the present invention, based on the power generation performance information of power generation facilities derived from renewable energy, an electricity token having a value corresponding to the amount of power generation and an environmental value token having a contribution value to the environment are generated. At the same time, based on the performance information regarding the power generation, charge / discharge, and consumption of electricity from the power generation facilities of the power generation company to the power load of the consumer, the transfer of the owners of the electricity token and the environmental value token is controlled. In the present invention, the target of the transfer operation based on the performance information is only the electricity token, and when the electricity token is assigned to the consumer, the environmental value token is transferred in conjunction with the electricity token, while when the electricity token is assigned to the distributed energy resources of the power, the environmental value token is controlled not to be transferred in conjunction with the electricity token.

Effects of the Invention

[0011] According to the present invention configured as described above, when the electricity generated from the power generation facilities of the power generation company is directly assigned to the consumer, the electricity token and the environmental value token are transferred as a unit. When the electricity generated from the power generation facilities of the power generation company is assigned to the consumer via distributed energy resources, when the electricity token is transferred to the distributed energy resources, the environmental value token is not transferred in conjunction but the owner is maintained, and then when the electricity token is transferred from the distributed energy resources to the consumer, the environmental value token is transferred in conjunction. Thereby, it is possible to provide a flexible trading mechanism that can satisfy both the requirement for the integrated transfer of electricity and environmental value and the requirement for the transfer of environmental value directly from a power generation company to a consumer without passing through distributed energy resources.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an example of the overall configuration of the token control system according to this embodiment. As shown in FIG. 1, the token control system of this embodiment includes a power generation facility system 1, a distributed energy resource system 2, a consumer system 3, a token control server 4, and a blockchain 5. The power generation facility system 1, the distributed energy resource system 2, and the consumer system 3 are connected to the token control server 4 via a communication network 10 such as the Internet or a mobile phone network. Further, the token control server 4 is configured to be connectable to the blockchain 5.

[0014] The power generation facility system 1 is a system installed in the facilities of a power generation company, and includes a power generation facility 11 and a smart meter 12. The power generation facility 11 is a facility that generates electricity from renewable energy such as solar power, wind power, hydro power, geothermal energy, and biomass. The smart meter 12 measures the amount of electricity generated by the power generation facility 11 at predetermined time intervals, and notifies the token control server 4 via the communication network 10 of the measured amount of electricity as the power generation performance information of the power generation facility 11. Note that in FIG. 1, only one power generation facility system 1 is illustrated for simplicity, but in reality, there is one for each power generation company.

[0015] Here, as an example of a token control system applicable to RE100 (an abbreviation for Renewable Energy 100%, an international initiative established in 2014 by the UK-based international environmental NGO Climate Group), which declares that the electricity used in business activities is 100% renewable energy-derived electricity, it is assumed that all of the power generation facilities 11 are facilities that generate electricity from renewable energy.

[0016] In addition, the token control system of this embodiment is suitable for the control of electricity and environmental value tokens on the premise that the buyer of renewable energy-derived electricity (for example, a customer such as a company that has declared participation in RE100) is predetermined, and the power generation amount of renewable energy-derived electricity by the power generation company on the seller side and the actual value of the electricity consumption by the customer on the buyer side are linked according to the allocation wishes of the customer. However, this is only an example, and the scope of application of the present invention is not limited thereto.

[0017] The distributed energy resource system 2 is a system installed in a facility with distributed energy resources such as a storage battery or an electric vehicle, and includes a distributed energy resource 21 and a smart meter 22. The distributed energy resource 21 is a facility having a function of charging and discharging electricity for the purpose of adjusting the power supply and demand balance, stably supplying power, and reducing running costs such as peak shaving. The smart meter 22 measures the charge and discharge amount for the distributed energy resource 21 at predetermined time intervals, and notifies the token control server 4 via the communication network 10 of the measured charge and discharge amount as the charge and discharge performance information of the distributed energy resource 21. In FIG. 1, only one distributed energy resource system 2 is illustrated for simplicity, but actually it exists for each distributed energy resource 21.

[0018] The customer system 3 is a system installed in a customer's facility, and includes a power load 31 and a smart meter 32. The power load 31 is various electrical products such as lighting, a TV, a refrigerator, a washing machine, and an air conditioner. The smart meter 32 measures the amount of power consumed by the power load 31 at predetermined time intervals, and notifies the token control server 4 via the communication network 10 of the measured amount of power as the consumption performance information of the power load 31. In FIG. 1, only one customer system 3 is illustrated for simplicity, but actually it exists for each customer.

[0019] Based on the power generation performance information sent from the smart meter 12 of the power generation facility system 1, the token control server 4 requests the blockchain 5 to generate electric tokens and environmental value tokens (these two tokens may be collectively referred to as "electric and environmental value tokens") owned by the power generation company. Further, based on the charge and discharge performance information and the consumption performance information sent from the respective smart meters 22 and 32 of the distributed energy resource system 2 and the customer system 3, the token control server 4 requests the blockchain 5 to control the transfer of the owners of the electric tokens and the environmental value tokens respectively.

[0020] An electric token is digital data that represents the value corresponding to the amount of electric power as a token. An environmental value token is digital data that represents the value corresponding to the degree of contribution to the environment as a token. Since the electricity derived from renewable energy contributes to the environment, for the electricity generated by the renewable energy power generation facility 11, an environmental value token equivalent to it is issued together with the electric token. Although the details will be described later, in this embodiment, the electric token and the environmental value token are generated integrally, and the transfer to the customer is performed integrally.

[0021] Figure 2 is a block diagram showing a functional configuration example of the token control server 4 and the blockchain 5 according to this embodiment. As shown in Figure 2, the token control server 4 of this embodiment includes, as a functional configuration, a power generation achievement acquisition unit 41, a charge / discharge / consumption achievement acquisition unit 42, a token generation request unit 43, and a transfer control request unit 44. Further, the blockchain 5 includes, as a functional configuration, a token generation unit 51 and a transfer control unit 52.

[0022] The functional blocks 41 to 44 of the token control server 4 execute the processes described below through the cooperation of hardware and software. For example, the processes of the functional blocks 41 to 44 are executed by the operation of a program stored in a storage medium such as a RAM, a ROM, a hard disk, or a semiconductor memory under the control of a microcomputer configured with a CPU, a RAM, a ROM, etc. In addition to the microcomputer, a DSP (Digital Signal Processor) or the like may be provided. Also, the functional blocks 51 to 52 of the blockchain 5 execute the processes described below through the cooperation of hardware and software.

[0023] The power generation performance acquisition unit 41 acquires, as power generation performance information, the amount of power generated by the power generation facility 11 from the smart meter 12 of the power generation facility system 1. The charge / discharge / consumption performance acquisition unit 42 acquires, as charge / discharge performance information, the amount of power charged / discharged to / from the distributed energy resource 21 from the smart meter 22 of the distributed energy resource system 2. Further, the charge / discharge / consumption performance acquisition unit 42 acquires, as consumption performance information, the amount of power consumed by the power load 31 from the smart meter 32 of the customer system 3.

[0024] The token generation request unit 43 requests the blockchain 5 to generate an electric token and an environmental value token based on the power generation performance information of the power generation facility 11 acquired by the power generation performance acquisition unit 41. In response to this request, the token generation unit 51 of the blockchain 5 generates an electric token having a value corresponding to the amount of power generation and an environmental value token having an equivalent value.

[0025] The transfer control request unit 44 requests the blockchain 5 to control the transfer of the ownership of the electric token and the environmental value token generated by the token generation unit 51 based on the performance information regarding the generation, charge / discharge, and consumption of electricity from the power generation facility 11 of the power generation operator to the power load 31 of the customer acquired by the power generation performance acquisition unit 41 and the charge / discharge / consumption performance acquisition unit 42. In response to this request, the transfer control unit 52 of the blockchain 5 controls the transfer of the ownership of the electric token and the environmental value token generated by the token generation unit 51.

[0026] Both the electric token and the environmental value token handled in this embodiment are tokens that can be split and transferred. The transfer control unit 52 executes split transfer so that the value of the electric / environmental value token before splitting matches the total value of the multiple electric / environmental value tokens after splitting. In this embodiment, as an example of the electric / environmental value token, a divisible NFT (Non-Fungible Token) is used. Since each NFT has a different value and individual tokens are distinguishable, operations are performed by specifying the identifier (ID) assigned to the token. By associating the ID of the token before splitting with the ID of the token after splitting, it is possible to track transfer information. FIG. 3 is a diagram showing the basic flow of generation and transfer of the electric / environmental value token based on this.

[0027] When the power generation facility 11 (denoted as power generation facility X in FIG. 3) generates power, as shown in FIG. 3(a), an electric token DT1 owned by the power generation operator having a value corresponding to the power generation amount and an environmental value token RET1 equivalent to this are generated. The electric ID "D_1" is set for the electric token DT1 generated here, and a value of 100 kWh of power generation amount is assigned. Also, the environmental value ID "RE_1" is set for the environmental value token RET1, and a value of 100 kWh of power generation amount equivalent to the electric token DT1 is assigned. Further, in order to associate the environmental value token RET1 with the electric token DT1 generated integrally with this, the electric ID "D_1" is attached as associated information.

[0028] Of the 100 kWh of electricity generated by the power generation facility X, when a customer A consumes 60 kWh of a part of the electricity, as shown in Fig. 3(b), an electricity token DT2 and an environmental value token RET2 having a value corresponding to the amount of electricity consumed, 60 kWh, and an electricity token DT3 and an environmental value token RET3 having a value corresponding to the amount of electricity remaining in the power generation facility X, 40 kWh, are generated by being divided from the electricity and environmental value tokens DT1 and RET1 owned by the power generation operator shown in Fig. 3(a), and at the same time, the electricity and environmental value tokens DT1 and RET1 become invalid. Among the tokens generated by the division, the owners of the electricity and environmental value tokens DT2 and RET2 having a value corresponding to the electricity consumed by the customer A are transferred from the power generation operator to the customer A.

[0029] An electricity ID "D_2" is set for the customer-owned electricity token DT2 generated here, and a value of 60 kWh of the power generation amount is assigned. Also, an environmental value ID "RE_2" is set for the customer-owned environmental value token RET2, and a value of 60 kWh of the power generation amount equivalent to the electricity token DT2 is assigned. In addition, an electricity ID "D_2" is attached as associated information to the environmental value token RET2 in order to associate it with the electricity token DT2 generated integrally therewith. Furthermore, for the purpose of making a logical association of the division relationship, the electricity ID "D_1" of the original electricity token DT1 is attached as the parent electricity token ID to the electricity token DT2 as associated information, and the environmental value ID "RE_1" of the original environmental value token RET1 is attached as the parent environmental value token ID to the environmental value token RET2 as associated information.

[0030] In addition, for the electricity token DT3 owned by the power generation operator, an electricity ID of "D_3" is set, and a value of 40 kWh of generated electricity, which is the amount of electricity generated after reducing the 60 kWh allocated to the customer, is assigned. Also, for the environmental value token RET3 owned by the power generation operator, an environmental value ID of "RE_3" is set, and a value of 40 kWh of generated electricity equivalent to the electricity token DT3 is assigned. Further, for the environmental value token RET3, in order to associate it with the electricity token DT3 generated integrally therewith, an electricity ID of "D_3" is attached as associated information. Furthermore, for the purpose of making a logical association of the splitting relationship, the electricity token DT3 has an electricity ID "D_1" of the original electricity token DT1 as the parent electricity token ID attached as associated information, and the environmental value token RET3 has an environmental value ID "RE_1" of the original environmental value token RET1 as the parent environmental value token ID attached as associated information.

[0031] In FIG. 3 above, it shows the flow in which electricity and environmental value tokens are split and transferred from the power generation operator to the customer as electricity is passed from the power generation facility 11 to the power load 31. In this way, by creating electricity and environmental value tokens owned by the power generation operator in response to the generation of electricity, and splitting and allocating the electricity and environmental value tokens to the customer in response to the use of electricity, the electricity generated by the renewable energy power generation facility 11 can be logically associated with the electricity used by the customer.

[0032] On the other hand, when electricity is passed from the power generation facility 11 to the distributed energy resource 21, the splitting and transfer of the electricity token is performed with the same logic as in FIG. 3. However, it is assumed that the distributed energy resource 21 does not own an environmental value, and a different logic from that of the electricity token is applied to the transfer of ownership of the environmental value token. That is, the transfer control unit 52 targets only the electricity token for the transfer operation based on the charge / discharge / consumption performance information. When allocating the electricity token to the customer, the environmental value token is transferred in association with the electricity token, while when allocating the electricity token to the distributed energy resource 21, it is controlled so as not to associate the environmental value token with the electricity token.

[0033] Also, in this embodiment, the generation and transfer of electricity and environmental value tokens are performed on the smart contract of the blockchain 5. That is, the token generation unit 51 of the blockchain 5 records the electricity tokens generated based on the power generation performance information in the blockchain 5 in response to the request from the token generation request unit 43 of the token control server 4, and generates environmental value tokens along with the recording of the electricity tokens in the blockchain 5 and also records these in the blockchain 5.

[0034] Also, the transfer control unit 52 of the blockchain 5 records the transfer of electricity tokens based on the charge / discharge and consumption performance information in the blockchain 5 in response to the request from the transfer control request unit 44 of the token control server 4, and executes the transfer of environmental value tokens based on the transfer record of the electricity tokens recorded in the blockchain 5, and also records the transfer of the environmental value tokens in the blockchain 5. Here, when the transfer record of the electricity tokens indicates a transfer from the power generation operator to the distributed energy resource 21, the transfer control unit 52 does not execute the transfer of the environmental value tokens from the power generation operator to the distributed energy resource 21, and the owner of the environmental value tokens is maintained by the power generation operator.

[0035] By doing so, it is possible to prevent the owner of the environmental value tokens from performing free transfer processing. Note that the transfer control unit 52 may execute the transfer of the environmental value tokens only when a transfer operation is performed by a user who has the execution authority of the transfer of the electricity tokens. For example, when it is predetermined that the electricity generated by the power generation facility X is sold to the consumer A, the transfer of the environmental value tokens may be executed only when a transfer operation is performed by the consumer A (that is, only when the consumer A acquires the consumption performance information from the smart meter 32 of the consumer system 3 used by the consumer A).

[0036] Note that the token control server 4 may generate and transfer electricity / environment value tokens and record the history thereof in the blockchain 5. However, by generating and transferring electricity / environment value tokens on the blockchain 5 as in this embodiment, it is possible to enhance the authenticity of data.

[0037] FIG. 4 is a diagram showing an example of the above specific transfer control. Note that since the basic logic is as described in FIG. 3, redundant explanations are omitted. In the example of FIG. 4, first, when the power generation facility 11 generates 100 kWh of electricity, electricity tokens owned by the power generation company having a value corresponding to the generated amount are generated and recorded in the blockchain 5, and in conjunction with this, equivalent environment value tokens are generated and recorded in the blockchain 5.

[0038] That is, when 100 kWh of power generation achievement information is transmitted from the smart meter 12 to the token control server 4 ((1)), the token generation request unit 43 of the token control server 4 requests the token generation unit 51 of the blockchain 5 to generate electricity tokens based on this power generation achievement information. In response to this, the token generation unit 51 generates electricity tokens owned by the power generation company and records them in the blockchain 5 ((2)). Further, based on the recording of the electricity tokens in this blockchain 5 ((3)), the token generation request unit 43 of the token control server 4 requests the token generation unit 51 of the blockchain 5 to generate environment value tokens. In response to this, the token generation unit 51 generates environment value tokens equivalent to the electricity tokens and records them in the blockchain 5 ((4)).

[0039] In the example of Fig. 4, out of the 100 kWh of electricity generated by the power generation facility 11, 60 kWh is once charged to the distributed energy resource 21 and then discharged and delivered to the consumer A, while 40 kWh is directly delivered to the consumer B without being charged and discharged by the distributed energy resource 21. Along with this, the 100 kWh of electricity and environmental value tokens owned by the power generation operator are divided into 60 kWh of electricity and environmental value tokens and 40 kWh of electricity and environmental value tokens and transferred to the two consumers A and B. In the example of Fig. 4, the division of the electricity and environmental value tokens is triggered by the charging record to the distributed energy resource 21, and then shows the situation where the transfer to the consumers A and B is carried out.

[0040] Here, regarding the 60 kWh of electricity and environmental value tokens for which the electricity passes through the distributed energy resource 21, while the transfer of the electricity tokens from the power generation operator to the distributed energy resource 21 and the transfer from the distributed energy resource 21 to the consumer A are all recorded in the blockchain 5, the transfer of the environmental value tokens from the power generation operator to the distributed energy resource 21 is not recorded, and only the transfer from the power generation operator to the consumer A is recorded in the blockchain 5. That is, at the stage when the electricity tokens are allocated from the power generation operator to the distributed energy resource 21, although the division of the electricity and environmental value tokens is carried out, the environmental value tokens remain with the power generation operator. While the transfer of the electricity tokens to the distributed energy resource 21 is recorded in the blockchain 5, the transfer of the environmental value tokens is not recorded ((5) to (8)). Then, when the allocation of the electricity tokens from the distributed energy resource 21 to the consumer A has moved, based on the transfer record, the environmental value tokens are transferred from the power generation operator to the consumer A ((9) to (12)).

[0041] According to the token control system of the present embodiment configured as above, while expressing electricity and environmental value as separate tokens, by providing the environmental value token corresponding to the electricity token with information linking the electricity ID, it is possible to grasp the electricity token integrated with the environmental value token. Furthermore, only the electricity token is the target of the transfer operation based on the charge / discharge / consumption record information, and when electricity is consumed by a consumer, the environmental value token is transferred in conjunction with the electricity token. On the other hand, when electricity is stored in the distributed energy resource 21, the electricity token is transferred to the distributed energy resource 21, but the environmental value token is left at the power generation company. Thereafter, when electricity is discharged from the distributed energy resource 21 and used by a consumer, the environmental value token is transferred from the power generation company to the consumer in conjunction with the transfer of the electricity token. This makes it possible to provide a flexible trading mechanism that satisfies both the requirement that electricity and environmental value are transferred in an integrated manner and the requirement that environmental value is transferred directly from the power generation company to the consumer without passing through the distributed energy resource 21. Furthermore, it is possible to realize tracking that does not have the environmental value token in the distributed energy resource 21.

[0042] In the above embodiment, an example was described in which only the amount of power indicating the magnitude of value is recorded in the electricity / environmental value token in addition to the ID, but other information may be recorded. For example, as illustrated in Fig. 5, an electricity / environmental value token including the type and location of the power generation facility 11 as attribute information may be generated by the token generation unit 51, and in addition to the transfer control unit 52 relating the electricity / environmental value token before division to a plurality of electricity / environmental value tokens after division by linking information (parent electricity token ID, parent environmental value token ID), the attribute information possessed by the electricity / environmental value token before division may be passed on to the electricity / environmental value token after division.

[0043] The type of the power generation facility 11 can also be paraphrased as the type of renewable energy, for example, it means types such as solar power, wind power, hydropower, geothermal energy, biomass, etc. The location of the power generation facility 11 is, for example, the area where the power generation facility 11 is installed. By recording such attribute information in the electricity and environmental value tokens, transferring the electricity and environmental value tokens while inheriting the attribute information, and leaving the transfer record in the blockchain 5, it becomes possible to track from which type of renewable energy the electricity consumed by the consumer is derived and from which power generation facility 11 in which region it is generated. Note that it is not essential to record the attribute information in both the electricity token and the environmental value token, and it may be recorded in only one of them.

[0044] Also, in the above embodiment, the environmental value token is assumed to have the same value as the electricity token, but it is not limited to this. For example, the value may be changed according to the type of the power generation facility 11. For example, different weight information may be set in advance according to the type of the power generation facility 11, and an environmental value token having a value obtained by multiplying the power generation amount by the weight may be generated.

[0045] Also, in the above embodiment, the power generation facility 11 has been described as a facility that generates electricity entirely from renewable energy, but the application scope of the present invention is not limited to this. For example, the power generation facility 11 may include a facility that generates electricity from fossil energy, and while issuing electricity tokens and environmental value tokens for electricity from renewable energy, only electricity tokens may be issued for electricity from fossil energy.

[0046] In addition, the above embodiments are merely examples of specific implementations in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner thereby. That is, the present invention can be implemented in various forms without departing from its gist or its main features.

Explanation of Reference Numerals

[0047] 1 Power Generation Facility System 2 Distributed Energy Resource System 3 Customer System 4 Token Control Server 5 Blockchain 11 Power Generation Facility 12 Smart Meter 21 Distributed Energy Resource 22 Smart Meter 31 Power Load 32 Smart Meter 41 Power Generation Performance Acquisition Unit 42 Charge / Discharge / Consumption Performance Acquisition Unit 43 Token Generation Request Unit 44 Transfer Control Request Unit 51 Token Generation Unit 52 Transfer Control Unit

Claims

1. Based on the performance information regarding the power generation of a power generation facility derived from renewable energy, as tokens owned by a power generation operator, a token generation unit that generates an electricity token having a value corresponding to the amount of power generation and an environmental value token having a contribution value to the environment; A transfer control unit that controls the transfer of ownership of the electricity token and the environmental value token generated by the token generation unit based on the performance information regarding the power generation, charge / discharge, and consumption of electricity from the power generation facility of the power generation operator to the power load of the customer; The transfer control unit sets the target of the transfer operation based on the performance information to only the electricity token, and when allocating the electricity token to the customer, transfers the environmental value token in association with the electricity token, while controlling not to associate the environmental value token with the electricity token when allocating the electricity token to a distributed energy resource of power. A token control system characterized by the above.

2. The token generation unit records the generated electricity token on a blockchain. The transfer control unit records the transfer of the electricity token on the blockchain, and executes the transfer of the environmental value token based on the transfer record of the electricity token recorded on the blockchain. The token control system according to Claim 1, characterized by the above.

3. The transfer control unit executes the transfer of the environmental value token only when a transfer operation is performed by a user who holds the execution right of the transfer of the electricity token. The token control system according to Claim 2, characterized by the above.

4. Both the electricity token and the environmental value token are non-fungible tokens that can be transferred in a divisible manner. The transfer control unit executes the divisible transfer so that the value of the token before division and the total value of the multiple tokens after division match. The token control system according to any one of Claims 1 to 3, characterized by the above.

5. The token generation unit generates a token including the type and location of the power generation facility as attribute information for at least one of the electricity token and the environmental value token. The transfer control unit associates the token before division and the multiple tokens after division with association information, and inherits the attribute information possessed by the token before division to the tokens after division. The token control system according to claim 4, characterized in that...

6. A token generation request unit that requests generation of an electric token having a value corresponding to the amount of power generation and an environmental value token having a contribution value to the environment as tokens owned by a power generation operator based on performance information regarding power generation by a power generation facility derived from renewable energy; A transfer control request unit that requests control of transfer of ownership of the electric token and the environmental value token generated based on a request by the token generation request unit based on performance information regarding power generation, charge / discharge, and consumption of electricity between the power generation facility of the power generation operator and the power load of a customer; The transfer control request unit requests that the target of the transfer operation based on the performance information be only the electric token, and requests that when the electric token is assigned to the customer, the environmental value token be transferred in conjunction with the electric token, while when the electric token is assigned to a distributed energy resource of power, only the electric token be transferred without linking the environmental value token to the electric token. A token control server, characterized in that...

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