Transaction intermediation system, transaction system, transaction intermediation method, and program

Abstract

To make environmental value, which has naturally disappeared in the past, visible, and allows it to be utilized effectively.SOLUTION: A transaction intermediation system (30) mediates transactions regarding environmental value associated with electricity produced by renewable energy. The transaction intermediation system includes an acquisition unit (31) that acquires the amount of legal tender, which is the sales profit of an environmental value certificate by the sale of the environmental value certificate issued based on the self-consumption amount of electricity self-consumed by a producer of electricity by renewable energy, and a provision unit (35) that provides a currency value other than the legal tender corresponding to the amount of legal tender to a communication terminal of the producer.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a transaction intermediation system, an electric power system, a transaction intermediation method, and a program. [Background technology]

[0002] Electricity generated by renewable energy sources such as solar power has the same value as electricity itself, but also has the same CO 2 It is considered to have environmental value because it reduces emissions. Therefore, companies are working to increase their corporate value by converting the environmental value of electricity generated by renewable energy into J-Credits (see Patent Document 1).

[0003] Here, environmental value will be described with reference to FIG. 9. FIG. 9 is a diagram showing the relationship between the value as electricity, the environmental value, and J-Credits. As shown in FIG. 9, electricity generated by renewable energy is recognized not only for its value as electricity, but also for its environmental value that accompanies this value as electricity. Since the value as electricity and the environmental value can be handled separately, a company can apply to a national institution or the like to convert the environmental value into J-Credits, etc. This makes it possible to trade J-Credits, etc., separately from the value as electricity. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-171103 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, general users who have installed solar panels or other power generation equipment on the roofs of their homes only consume electricity for themselves, and do not bother to apply to national agencies, which require complicated procedures, to convert environmental value into J-Credits, etc. As a result, environmental value has naturally disappeared in the past.

[0006] The present disclosure has been made in consideration of the above-mentioned circumstances, and aims to make environmental value, which has traditionally disappeared naturally, visible and available for effective use. [Means for solving the problem]

[0007] The invention of claim 1 is a transaction intermediation system that mediates transactions regarding environmental value associated with electricity produced by renewable energy, and has an acquisition unit that acquires the amount of legal tender that is the sales profit of an environmental value certificate issued by a producer of electricity produced by renewable energy based on the amount of electricity self-consumption by the producer, and a provision unit that provides a currency value other than the legal tender that corresponds to the amount of the legal tender to the producer's communication terminal. Effect of the Invention

[0008] As described above, the present disclosure has the effect of making it possible to actualize and effectively utilize environmental value that would have naturally disappeared in the past. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram of a power system. [Diagram 2] FIG. 4 is a conceptual diagram of a power management table. [Diagram 3] FIG. 13 is a conceptual diagram of an environmental value management table. [Figure 4] FIG. 13 is a conceptual diagram of a certificate management table. [Diagram 5] FIG. 13 is a conceptual diagram of a local currency management table. [Figure 6] FIG. 2 is a diagram showing the electrical hardware configuration of a transaction intermediation server. [Figure 7] FIG. 2 is a functional configuration diagram of a transaction intermediary server. [Figure 8] FIG. 2 is a sequence diagram showing processing in the power system. [Figure 9] This is a diagram showing the relationship between electricity value, environmental value, and J-Credit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0011] [Explanation of each business operator, etc.] An overview of a power system 1 will be described with reference to Fig. 1. Fig. 1 is a schematic diagram of the power system.

[0012] As shown in Figure 1, there is an electricity producer A, an electricity manager B, an intermediary C, an operator D, a local company E, and a local currency system administrator F.

[0013] <Producer A> Producer A is a user who produces electricity (called "green electricity" in Japan) using renewable energy. Producer A is also an acquirer of local currency. Types of methods for producing electricity from renewable energy include solar, solar heat, wind, geothermal, and hydroelectric power.

[0014] <Power manager B> The power manager B is a company or the like that manages, for a predetermined period of time, the amount of power produced by the producer A (power generation amount), the amount of power consumed by the producer A (power consumption amount), and the amount of power sold by the producer A to a power company or the like (power sales amount). The predetermined period is, for example, one month, half a year, one year, etc.

[0015] <Intermediary C> Intermediary C is a company or the like that mediates transactions related to the environmental value associated with electricity produced by renewable energy. Intermediary C applies to J-Credit operator D for the issuance of J-Credits on behalf of Producer A, and has the environmental value associated with Producer A's total self-consumption electricity (= "total electricity generation" - "total electricity sales") during the specified period converted into J-Credits. Furthermore, Intermediary C sells these J-Credits to local company E, and passes a portion of the legal tender, which is the sales profit, to local currency by passing it on to local currency system administrator F, thereby providing the local currency to Producer A.

[0016] <Administrator D> Operator D is a national or other organization that calculates environmental value from the power value of self-consumption, etc., converts (converts) this environmental value into J-Credits, and provides J-Credits to applicants. Note that J-Credits are an example of environmental value certificates. Environmental value certificates also include green power certificates administered by private companies, etc., and non-fossil certificates administered by the Agency for Natural Resources and Energy of Japan, etc.

[0017] <Local company E> Regional Company E is a company in the same region as Producer A. In Japan, this "region" refers to the area of ​​a city, town, village, prefecture, region (such as the Kanto region), smart city, or Producer A's living area. Producer A's living area is an urban area and commuter towns surrounding this urban area. Note that a region may also be a country.

[0018] <Local Currency System Administrator F> Local currency system administrator F is the local currency system administrator for the same region as producer A and local company E. Local currency system administrator F converts legal tender into local currency that can only be used in the region to which local currency system administrator F belongs, and provides the local currency to local residents such as producer A. Note that local currency is an example of currency value. Currency value includes not only local currency that can only be used in a specific region, but also points with which producer A and others can receive goods or services. These points also include points (such as refueling points) that can be used to purchase gasoline, electricity, hydrogen, etc. at service stations.

[0019] [Explanation of devices, servers, communication terminals, etc.] <Power measurement device> A power generation device 8 such as solar panels is installed in the house H of producer A. A smart meter 9 is also installed in the house H to measure the supply of electricity purchased from the electric grid, the consumption of electricity by home appliances and the like in the house H, and the amount of electricity generated by the power generation device 8 that is not consumed by the home appliances and the like and is sold. The electric grid is a system (electricity network) that integrates power generation, transformation, transmission, and distribution in order to supply electricity to the power receiving equipment of a consumer (producer A in FIG. 1).

[0020] Furthermore, a power measuring device 10 is installed in the house H, which measures the amount of power generated by the power generation device 8 and acquires the amount of power consumed and sold from a smart meter 9. The power measuring device 10 is a device provided by the intermediary C. In addition, the power measuring device 10 stores a producer ID for identifying the producer A and a device ID for identifying the power measuring device 10.

[0021] The power measuring device 10 transmits data (power generation amount, power consumption amount, power sold amount, producer ID, device ID, etc.) to the power management server 20 at predetermined time intervals (e.g., every 30 minutes). That is, the power measuring device 10 can acquire the power generation amount and the power sold amount that are the basis of the self-consumption amount (= "power generation amount" - "power sold amount"), which is the amount of power self-consumed by a predetermined producer (e.g., producer A).

[0022] <Power management server> The power manager B manages and operates a power management server 20, which is a computer. The power management server 20 has a power management DB (Data Base) 27 for receiving and managing data (power generation amount, power consumption amount, power sold amount, producer ID, device ID, etc.) sent from the power measuring device 10 via a communication network at predetermined intervals (e.g., 30 minutes). The communication network is the Internet, etc. The communication method may be either wired or wireless. Here, the power management table will be explained using FIG. 2.

[0023] (Power Management Table) Fig. 2 is a conceptual diagram of a power management table. The power management DB 27 is configured by the power management table shown in Fig. 2. In the power management table, the name, address, producer ID, password, and device ID of a user who is a producer of electricity produced (generated) using renewable energy are associated and managed. Furthermore, in the power management table, the total power generation amount, which is the total amount of power generation in a predetermined period (e.g., one year), the total consumption amount, which is the total amount of consumption in a predetermined period (e.g., one year), and the total amount of power sales, which is the total amount of power sales in a predetermined period (e.g., one year), are also associated and managed for each producer as data received from the power measuring device 10.

[0024] The producer ID is an example of producer identification information for identifying the producer. Producer identification information includes Japan's personal identification number (My Number), etc. The device ID is an example of device identification information for identifying the power generation device 8. Device identification information includes manufacturing numbers, etc. The reason that not only the producer ID but also the device ID are managed in this way is that in cases where the same producer owns multiple homes H and installs each power generation device 8 in each home H, they can be treated independently.

[0025] <Transaction intermediary server> Returning to Fig. 1, intermediary C manages and operates transaction intermediary server 30, which is a computer. Transaction intermediary server 30 has an environmental value management DB 37 for receiving and managing data (total power generation, total consumption, total power sales, producer ID, etc.) sent from power management server 20 over a communications network every predetermined period (such as one year). Transaction intermediary server 30 also derives total home consumption (= "total power generation" - "total power sales") and manages the total home consumption for each producer in environmental value management DB 37.

[0026] The transaction intermediary server 30 also makes a request to the management server 40 to issue J-Credits. This issuance request includes the total self-consumption of all producers. For example, if the total number of producers managed by the power manager B is 100, the total self-consumption of each producer for a predetermined period (such as one year) is included for 100 producers. The transaction intermediary server 30 acquires from the management server 40 the sum of the environmental values ​​of each producer associated with each self-consumption of all producers, and the total amount of J-Credits equivalent to this sum. The transaction intermediary server 30 then allocates (divides) the sum of the environmental values ​​and the total amount of J-Credits according to the total self-consumption of each producer, thereby associating and managing the environmental values ​​and the amounts of J-Credits for each producer in the environmental value management DB 37.

[0027] Furthermore, the transaction intermediary server 30 transmits a sales request for J-credits to the purchasing server 50 of regional company E. The sales request includes the total amount of J-credits obtained from the operation server 40. The transaction intermediary server 30 obtains from the bank or the purchasing server 50 the total amount of legal tender that regional company E used to purchase J-credits and transfer to its bank account. The transaction intermediary server 30 then allocates (divides) the amount of legal tender equivalent to the total amount of J-credits according to the total self-consumption of each producer, and manages it in the environmental value management DB 37.

[0028] Furthermore, since the transaction intermediary server 30 has acquired the total amount of legal tender and thus completed the transaction, it transmits a request to change the name of the J-Credit to the management server 40. This request for change of name includes the name before the change (intermediary C), the name after the change (regional company E), the total amount of the J-Credit, etc. As a result, the management server 40 changes the name of the J-Credit managed in the certificate management DB 47 from intermediary C to regional company E.

[0029] Furthermore, the transaction intermediary server 30 transmits a conversion request from legal tender to local currency to the currency conversion server 60 of the local currency system administrator F. This conversion request includes the amount of legal tender and the acquirer ID for each acquirer as producer A. This allows the transaction intermediary server 30 to provide producer A with local currency according to the producer A's total home consumption (amount of legal tender) via the currency conversion server 60. Here, the environmental value management table will be explained using FIG. 3.

[0030] (Environmental Value Management Table) Fig. 3 is a conceptual diagram of an environmental value management table. The environmental value management DB 37 is composed of the environmental value management table shown in Fig. 3. In the environmental value management table, for users who are producers, the name, address, producer ID, and acquirer ID in cases where the producer is the acquirer are managed in association with each other. Furthermore, in the environmental value management table, the total power generation amount and the total power sales amount are managed in association with each other as data received from the power management server 20 for each producer. Furthermore, in the environmental value management table, the total self-consumption amount derived by the transaction intermediary server 30 is managed in association with each other for each producer.

[0031] Furthermore, the environmental value management table also associates and manages, for each producer, the environmental value (t: tons) and the amount of J-credits (yen) acquired from operator D, as well as the amount of legal tender transferred from local company E.

[0032] The acquirer ID is an example of acquirer identification information for identifying the acquirer.

[0033] <Operation Server> Returning to FIG. 1, the operator D manages and operates the operation server 40, which is a computer. The operation server 40 receives data (such as the total self-consumption amount of all producers) sent from the transaction intermediary server 30 via a communication network, separates each environmental value associated with the total self-consumption amount of all producers, calculates the total amount of J-credits equivalent to the sum of each environmental value, and issues J-credits. The operation server 40 has a certificate management DB 47 for managing the total self-consumption amount of all producers, the sum of each environmental value, and the total amount of J-credits for each account name of the J-credit owner. Here, the certificate management table will be explained using FIG. 4.

[0034] (Certificate Management Table) Fig. 4 is a conceptual diagram of a certificate management table. The certificate management DB 47 is configured with the certificate management table shown in Fig. 4. In the certificate management table, for each account name of a J-credit owner, the total self-consumption amount, which is the total amount of self-consumption of all producers, the sum of each environmental value associated with this total self-consumption amount, and the total amount of J-credits equivalent to the sum of each environmental value are associated and managed.

[0035] <Purchase Server> Regional company E manages and operates a purchasing server 50, which is a computer. The purchasing server 50 receives a sales request for J-credits sent from the transaction intermediary server 30 via a communication network. This sales request includes the total amount of J-credits. Regional company E purchases J-credits and transfers the total amount of legal tender corresponding to the value of the J-credits to intermediary C via a financial institution or the like, and this total amount of legal tender is managed by the environmental value management DB37.

[0036] <Currency conversion server> The local currency system administrator F manages and operates a currency conversion server 60, which is a computer. The currency conversion server 60 receives a conversion request from legal tender to local currency sent from the transaction intermediary server 30 via a communication network. This conversion request includes the amount of legal tender and the acquirer ID for each acquirer who is a producer. Note that the producer ID is managed by the power manager B, and the acquirer ID is managed by the local currency system administrator F, but since the producer ID and the acquirer ID are managed in association with each other in the environmental value DB 37, the producer and acquirer can be linked as the same user.

[0037] The intermediary C may manage both the transaction intermediary server 30 and the currency conversion server 60. There are two types of IDs, a producer ID and an acquirer ID, but the environmental value management DB 37 may combine the producer ID and the acquirer ID into a single type of ID, the producer ID or the acquirer ID. The transaction intermediary server 30 may also have the functions of the currency conversion server 60 and the local currency management DB 67.

[0038] The currency conversion server 60 also has a local currency management DB 67 for converting legal currency into local currency in an amount corresponding to the amount of the legal currency for each acquirer and managing the local currency, etc. In this case as well, the legal currency is transferred from the intermediary C to the local currency system manager F via a financial institution, etc., and the amount of the transferred legal currency is managed in the local currency management DB 67. Here, the local currency management table will be explained using FIG. 5.

[0039] (Local currency management table) Fig. 5 is a conceptual diagram of a local currency management table. The local currency management DB 67 is composed of the local currency management table shown in Fig. 5. In the local currency management table, the name, address, acquirer ID, and password of a user who has acquired local currency are associated and managed. Furthermore, the local currency management table also associates and manages, for each acquirer, the amount of legal tender and the amount of local currency converted from this amount of legal tender as data received from the transaction intermediary server 30.

[0040] <Communication terminal> Returning to FIG. 1, producer A has a communication terminal 70. The communication terminal 70 is a smartphone, a tablet terminal, a laptop PC, a smart watch, or the like. An application (a1) for implementing services operated by the power manager B is installed on the communication terminal 70, and the communication terminal 70 can display data (power information, etc.) received from the power management server 20 via a communication network. The power information is information that visualizes the amount of power generated and consumed at one's own home H for a predetermined period (one day, one month, half a year, one year, etc.) using a graph or the like.

[0041] In addition, the communication terminal 70 has installed thereon an application (a2) for implementing services operated by the local currency system administrator F, and can display data (such as the amount of local currency) received from the currency conversion server 60 via the communication network. The application (a1) and the application (a2) may be the same or different.

[0042] The above-mentioned transaction intermediation server 30 can also be referred to as a "transaction intermediation system" since multiple components are organically arranged. Transaction intermediation server 30 can also be referred to as a "transaction intermediation system" when it is composed of multiple computers. Furthermore, the combination of transaction intermediation server 30 and an external storage device of transaction intermediation server 30 can also be referred to as a "transaction intermediation system." Furthermore, the combination of transaction intermediation server 30 and a DB server, etc. can also be referred to as a "transaction intermediation system." In this case, the external storage device, DB server, etc. may have a storage unit 36, which will be described later, built therein.

[0043] Similarly, the power management server 20, the operation server 40, the purchasing server 50, and the currency conversion server 60 can be referred to as a power management system, an operation system, a purchasing system, and a currency conversion system, respectively.

[0044] Furthermore, the power measuring device 10 and the transaction intermediary server 30 constitute a transaction system 2.

[0045] (Hardware configuration) The transaction intermediary server 30 can be realized by executing a program corresponding to the processing performed by the transaction intermediary server 30, using hardware resources such as a CPU and memory built into a computer. The program can be recorded on a computer-readable (non-transitory) recording medium and stored or distributed. The program can also be provided via a communication network such as the Internet or email.

[0046] Fig. 6 is a diagram showing an example of the hardware configuration of a server. The computer as the server in Fig. 6 includes a drive device 1000, an auxiliary storage device 1002, a memory device 1003, a CPU 1004, an interface device 1005, a display device 1006, an input device 1007, an output device 1008, etc., which are mutually connected by a bus BS.

[0047] The program for realizing the processing in the computer is provided by a recording medium 1001 such as a CD-ROM or a memory card. When the recording medium 1001 storing the program is set in the drive device 1000, the program is installed from the recording medium 1001 to the auxiliary storage device 1002 via the drive device 1000. However, the program does not necessarily have to be installed from the recording medium 1001, but may be downloaded from another computer via a communication network. The auxiliary storage device 1002 stores the installed program as well as necessary files, data, etc.

[0048] The memory device 1003 reads out and stores the program from the auxiliary storage device 1002 when an instruction to start the program is received. The CPU 1004 realizes the functions related to the device in accordance with the program stored in the memory device 1003. The interface device 1005 is used as an interface for connecting to a communication network, etc. The display device 1006 displays a GUI (Graphical User Interface) based on a program, etc. The input device 1007 is composed of a keyboard and mouse, buttons, a touch panel, etc., and is used to input various operation instructions. The output device 1008 outputs the results of calculations.

[0049] The power measuring device 10, the power management server 20, the operations server 40, the purchase server 50, and the currency conversion server 60 have the same hardware configuration as the transaction intermediation server 30, and therefore a description thereof will be omitted.

[0050] [Functional configuration of transaction intermediary server] Next, the functional configuration of the transaction intermediary server 30 will be described with reference to Fig. 7. Fig. 7 is a functional configuration diagram of the transaction intermediary server. Note that explanations of the configurations of the power measuring device 10, the power management server 20, the operation server 40, the purchase server 50, and the currency conversion server 60 will be omitted.

[0051] As shown in Fig. 7, transaction intermediary server 30 has a receiving unit 31, a derivation unit 32, an allocation unit 33, and a transmitting unit 35. Each of these units is a function or means realized by an operation commanded by CPU 1004 in accordance with a program installed in transaction intermediary server 30. Transaction intermediary server 30 also has a storage unit 36 ​​realized by auxiliary storage device 1002 or memory device 1003. Storage unit 36 ​​stores the above-mentioned environmental value management DB 37.

[0052] Next, each functional configuration will be described.

[0053] The receiving unit 31 also functions as an acquiring unit, receiving (acquiring) various data (or information) from other servers via the interface device 1005 through the communication network.

[0054] The derivation unit 32, for example, subtracts the total amount of electricity sold from the total amount of electricity generated to derive the total amount of electricity producer A's personal consumption for a predetermined period (such as one year).

[0055] The allocation unit 33, for example, allocates the sum of each environmental value and the total amount of J-credits according to each producer's total self-consumption amount, thereby associating and managing the environmental value and the amount of J-credits for each producer in the environmental value management DB37.

[0056] The transmission unit 35 also functions as a providing unit, and transmits (provides) various data (or information) from the interface device 1005 to other servers via the communication network.

[0057] [Processing or Operation of the Present Embodiment] Next, the processing or operation of this embodiment will be described with reference to Fig. 8. Fig. 8 is a sequence diagram showing processing in the power system.

[0058] S11: First, the power measuring device 10 measures the amount of power generated by the power generating device 8 installed in the home H of the producer A, and obtains the amount of power consumed and the amount of power sold from the smart meter 9 also installed in the home H. Then, the power measuring device 10 transmits data (power generation amount, power consumption amount, power sold amount, producer ID, device ID, etc.) to the power management server 20 at predetermined time intervals (e.g., 30 minutes). As a result, the power management server 20 receives the data (power generation amount, power consumption amount, power sold amount, producer ID, device ID, etc.), and stores the received power generation amount, power consumption amount, and power sold amount in the power management DB 27 in association with each other based on the received producer ID and device ID. In this case, the power generation amount, power consumption amount, and power sold amount are accumulated for a predetermined period (e.g., one year) and are managed as the total power generation amount, total consumption amount, and total power sold amount, respectively.

[0059] S12: The power management server 20 transmits power information, which visualizes the amount of power generated and consumed as well as the amount of power sold at the house H, for each predetermined period (e.g., one month) to the communication terminal 70 of producer A. This allows producer A to check the power information on the communication terminal 70, etc. Prior to process S12, the power management server 20 performs user authentication using the producer ID and password transmitted from the communication terminal 70.

[0060] S13: Furthermore, the power management server 20 transmits power-related information (total power generation, total consumption, total power sales, producer ID, etc.) of all producers for each predetermined period (such as one year) to the transaction intermediary server 30. As a result, the transaction intermediary server 30 receives the power-related information of all producers, and stores the received total power generation and consumption, as well as the total power sales, in association with each other in the environmental value management DB 37 based on the producer ID from the received power-related information.

[0061] S14: In the transaction intermediary server 30, the derivation unit 32 derives the total self-consumption amount, which is the amount of electricity self-consumption by producer A for a predetermined period (such as one year), as the value obtained by subtracting the total amount of electricity sold from the total amount of electricity generated received in step S13. Then, the transmission unit 35 of the transaction intermediary server 30 transmits a request for issuing J-credits to the management server 40 based on the total self-consumption amount for all producers. This issuance request includes the total self-consumption amount of all producers derived by the derivation unit 32. For example, if the total number of producers managed by the power manager B is 100, the request for issuing J-credits includes the total self-consumption amount of each producer for the predetermined period (such as one year) for 100 people. As a result, the management server 40 receives the request for issuing J-credits.

[0062] S15: The management server 40 separates each environmental value associated with each total self-consumption amount of all producers, calculates the total amount of J-credits equivalent to the sum of each environmental value, and issues J-credits. The management server 40 then transmits data on the sum of each environmental value and the total amount of J-credits to the transaction intermediation server 30. As a result, the receiving unit 31 of the transaction intermediation server 30 receives the data on the sum of each environmental value and the total amount of J-credits. As a result, in the transaction intermediation server 30, the allocation unit 33 allocates the sum of each environmental value and the total amount of J-credits according to the total self-consumption amount of each producer, thereby associating and managing the environmental value and the amount of J-credit for each producer in the environmental value management DB 37.

[0063] S16: In the transaction intermediary server 30, the transmission unit 35 transmits a sales request for the J-credits to the purchasing server 50. This sales request includes the total amount of the J-credits received in process S15. As a result, the purchasing server 50 receives the sales request, and local company E purchases the J-credits.

[0064] S17: The purchasing server 50 transmits data of the total amount of legal tender to be paid via a financial institution, etc. to the transaction intermediary server 30. As a result, the receiving unit 31 of the transaction intermediary server 30 receives the data of the total amount of legal tender.

[0065] S18: The transmission unit 35 of the transaction intermediary server 30 transmits a request for changing the name of the J-Credit to the management server 40. This request for changing the name includes the name before the change (intermediary C), the name after the change (regional company E), the total amount of the J-Credit, etc. As a result, the management server 40 changes the name of the J-Credit managed in the certificate management DB 47 from intermediary C to regional company E. As a result, the owner of the J-Credit is changed from intermediary C to regional company E.

[0066] S19: In the transaction intermediary server 30, the sending unit 35 sends a conversion request from legal currency to local currency to the currency conversion server 60. This conversion request includes legal currency related information of all acquirers (the amount of legal currency and acquirer ID for each acquirer as a producer). This acquirer ID is an acquirer ID that is managed in association with the producer ID received in process S13 in the environmental value management DB 37. As a result, the currency conversion server 60 receives the conversion request from legal currency to local currency. Then, the currency conversion server 60 stores the amount of legal currency associated with the acquirer ID in the local currency management DB 67.

[0067] S20: The currency conversion server 60 issues the amount (value) of the local currency according to the amount of the legal currency received in process S19. The currency conversion server 60 also stores the amount of the local currency issued according to the amount of the legal currency received in process S19 in the local currency management DB 67 in association with the acquirer ID received in process S19 together with the amount of the legal currency. The currency conversion server 60 then transmits data of the amount (value) of the local currency to the communication terminal 70 of producer A as the acquirer indicated by the acquirer ID received in process S19. As a result, the communication terminal 70 receives the data of the amount (value) of the local currency, and producer A as the acquirer can automatically acquire the local currency. Note that prior to process S20, the currency conversion server 60 performs user authentication using the acquirer ID and password sent from the communication terminal 70.

[0068] [Main Effects of the Embodiments] As described above, according to this embodiment, by converting environmental value into currency value such as local currency, it is possible to make visible and effectively utilize environmental value that would have naturally disappeared in the past.

[0069] Furthermore, when environmental value is converted into local currency, it is possible to revitalize the local area through local production and consumption of environmental value, and it also has the effect of encouraging users who are residents of the local area to generate their own electricity.

[0070] 〔supplement〕 Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made without departing from the spirit and scope of the present invention.

[0071] (1) Each of the above-mentioned programs may be recorded on a (non-transitory) recording medium and distributed, or may be provided via a communication network such as the Internet.

[0072] (2) In each communication between the servers, between the power measuring device 10 and the power management server 20, and between the currency conversion server 60 and the communication terminal 70, other devices (servers, routers, etc.) may relay data, etc. For example, for the sake of simplicity, this specification describes that the transaction intermediary server 30 receives (acquires) various data, etc. from the power management server 20, the operation server 40, and the purchase server 50, and transmits (provides) various data, etc. to the operation server 40, the purchase server 50, and the currency conversion server 60, but the intent is that each of these receiving and transmitting processes also includes cases where other devices relay data, etc.

[0073] (3) The CPU 1004 as a processor may be a single processor or multiple processors.

[0074] [Additional notes] The above-described embodiment can also be expressed as the following content.

[0075] [Additional Note 1] A transaction intermediation system having a processor that mediates transactions related to environmental values ​​associated with electricity produced by renewable energy, The processor, An acquisition process for acquiring a legal tender amount representing a profit from the sale of the environmental value certificates issued based on the self-consumption amount of electricity generated by a producer of electricity generated by renewable energy; a provision process for providing a currency value other than the legal tender corresponding to the amount of the legal tender to the communication terminal of the producer; A transaction intermediation system that executes the above.

[0076] [Additional note 2] A transaction intermediation system according to claim 1, The providing process provides the currency value to the communication terminal of the producer via a currency conversion system that converts the legal currency into a currency value other than the legal currency. Item 1. A transaction intermediation system according to item 1. [Explanation of symbols]

[0077] 1. Power System 2. Trading System 10 Power measurement device 20 Power Management Server (also referred to as "Power Management System") 30 Transaction intermediation server (also referred to as "transaction intermediation system") 31 Receiving unit (also referred to as "acquiring unit") 32 Derivation part 33 Allocation Department 35 Transmitting section (also referred to as "providing section") 36 Memory section 37 Environmental Value Management DB 40 Operating Server (also referred to as "Operating System") 50 Purchasing Server (also referred to as "Purchasing System") 60 Currency Conversion Server (also referred to as "Currency Conversion System") 70 Communication terminal

Claims

1. A trading intermediation system that mediates transactions related to environmental values ​​associated with electricity produced by renewable energy, an acquisition unit that acquires the amount of legal tender, which is the sales profit of the environmental value certificates, by selling the environmental value certificates issued based on the self-consumption amount of the electricity generated by the producer of electricity generated by renewable energy; a providing unit that provides a currency value other than the legal tender corresponding to the amount of the legal tender to the communication terminal of the producer; A transaction intermediation system having the above.

2. The providing unit provides the currency value to the communication terminal of the producer via a currency conversion system that converts the legal currency into a currency value other than the legal currency. The transaction intermediation system according to claim 1 .

3. the providing unit issues a sales request to sell the environmental value certificate to a purchasing system for purchasing the environmental value certificate; The acquisition unit acquires, from the purchasing system, an amount of legal tender that is a profit on the sale of the environmental value certificate.

3. A transaction intermediation system according to claim 1 or 2.

4. The providing unit issues an issuance request for issuing the environmental value certificate based on the self-consumption amount to an operating system that issues the environmental value certificate based on the self-consumption amount, The acquisition unit acquires an amount related to the issued environmental value certificate from the operation system.

3. A transaction intermediation system according to claim 1 or 2.

5. 3. A transaction intermediation system according to claim 1 or 2, The acquisition unit acquires the amount of generated power and the amount of sold power from a power management system that manages the amount of generated power produced by the producer and the amount of sold power sold by the producer, A derivation unit that derives the self-consumption amount based on the power generation amount and the power sale amount; A transaction intermediation system having the above.

6. 6. A transaction intermediation system according to claim 5, A storage unit that stores producer identification information for identifying a producer of electricity generated by renewable energy and acquirer identification information for identifying an acquirer of the currency value in association with each other, The acquisition unit acquires the amount of power generated, the amount of power sold, and the producer identification information from the power management system that manages producer identification information for identifying the producer in association with the amount of power generated and the amount of power sold, the providing unit provides the amount of the legal tender to a currency conversion system that converts the legal tender into a currency value other than the legal tender, and provides acquirer identification information associated with the producer identification information in the storage unit; Trade intermediation system.

7. The transaction intermediation system according to claim 1 , wherein the environmental value certificate is a J-credit, a non-fossil certificate, or a green power certificate.

8. 2. The transaction intermediation system according to claim 1, wherein the currency value is a local currency that can be used only in a predetermined region, or points that can be used to receive goods or services.

9. A transaction intermediation system according to claim 1 or 2; a power measuring device that measures the amount of power generated by a power generating device of the producer and acquires the amount of power sold by the producer, and transmits data of the measured amount of power generated and the acquired amount of power sold to a power management system that manages the amount of power generated by the producer and the amount of power sold by the producer; A trading system having

10. A trading intermediation method implemented by a trading intermediation system that mediates transactions related to environmental values ​​associated with electricity produced by renewable energy, comprising: The transaction intermediation system includes: An acquisition process for acquiring a legal tender amount representing a profit from the sale of the environmental value certificates issued based on the self-consumption amount of electricity generated by a producer of electricity generated by renewable energy; a provision process for providing a currency value other than the legal tender corresponding to the amount of the legal tender to the communication terminal of the producer; A transaction intermediation method for carrying out the above.

11. A program causing a computer to execute the method according to claim 10.

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