JP6797450B1 - Electric power trading support system, electric power trading support method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric power transaction support system, an electric power transaction support method and a program for ensuring the traceability of renewable energy electric power. A system that supports power transactions between a plurality of power plants and a plurality of consumers, and the power generated at each power plant is transmitted to a predetermined power network. Acquires the amount of power received from the power network for each of the supply amount acquisition department that acquires the supply amount, the token issuing department that issues tokens according to the supply amount to the first account of the power plant in the blockchain, and each consumer. A power transmission amount acquisition unit that determines the amount of power transmission that is considered to have been sent from the power plant to the consumer for each power plant and consumer group, and a plurality of power plants and groups for each power plant. It is provided with a transaction issuing unit that issues a transaction that transfers the amount of tokens according to the amount of power transmission for each consumer, with each of the second accounts of the consumer as the destination and the first account as the sender. [Selection diagram] Fig. 1

Description

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

In recent years, "blockchain technology (distributed ledger technology)" that guarantees the authenticity of transaction information by using a hash function and public key cryptosystem is about to be used in various fields. As an example, in a cryptocurrency transaction, cryptocurrency transaction information (hereinafter referred to as "transaction") is broadcast to all terminals that use the cryptocurrency. The transmitted transactions are verified for authenticity by a terminal called a miner, and when approved, they are grouped into blocks and recorded in a ledger called a blockchain. In cryptocurrency transactions, transactions are prevented from being tampered with by having miners perform a calculation process called mining and then adding blocks to the blockchain.

Patent Document 1 discloses a technique for increasing the degree of guarantee of authenticity of transaction information using such a blockchain. Further, Patent Document 2 proposes a technique for realizing a mechanism for proving green power by using an electronic signature technology.

JP-A-2017-207860 Japanese Unexamined Patent Publication No. 2011-175556

By the way, in recent years, there is an increasing need among companies and local governments to actively use renewable energy power (hereinafter referred to as "renewable energy power"). It can be inferred that the background is that the report to CDP (Carbon Disclosure Project), which discloses the company's efforts to tackle climate change, is directly linked to the evaluation of shareholders including institutional investors. .. Here, "traceability (specification of power source)" is required as a requirement for using renewable energy, but such a technology does not yet exist. That is, once the generated power enters the power network (transmission network), it is assimilated with other power, so that it is no longer possible to specify the power generation source.

Therefore, an object of the present invention is to provide a technique capable of ensuring the traceability of renewable energy power.

The main invention of the present invention for solving the above problems is a system that supports electric power transactions between a plurality of power plants and a plurality of consumers, and power is generated at each of the power plants. A supply amount acquisition unit that acquires the supply amount transmitted to a predetermined power network, a token issuing unit that issues tokens according to the supply amount to the first account of the power plant in the blockchain, and the above. For each of the consumers, the demand amount acquisition unit that acquires the demand amount received from the power network and the power transmission amount that is considered to have been sent from the power plant to the consumer for each group of the power plant and the consumer are determined. The power transmission amount determination unit and each of the power plants, the second accounts of the power plant and the plurality of consumers in the group are the destinations, the first account is the sender, and each customer. It is characterized by including a transaction issuing unit for issuing a transaction for transferring the amount of the token according to the power transmission amount.

Other problems disclosed in the present application and solutions thereof will be clarified in the columns and drawings of the embodiments of the invention.

According to the present invention, the traceability of renewable energy power can be ensured.

It is an image diagram which shows the power sale process of electric power by a power generation apparatus. It is a figure which shows the whole structure example of the electric power transaction support system which concerns on one Embodiment of this invention. It is a figure which shows the hardware configuration example of the computer used for the management server 20, the worker apparatus 30, the node which forms the blockchain network 10, and the like. It is a figure which shows the software configuration example of management server 20. It is a figure which shows an example of the matching result by the matching processing unit 213. It is a figure which shows the software configuration example of the worker apparatus 30. It is a figure explaining the operation of the electric power transaction support system of this embodiment.

<Outline of the invention>
The contents of the embodiments of the present invention will be described in a list. The present invention includes, for example, the following configuration.
[Item 1]
A system that supports power transactions between multiple power plants and multiple consumers.
For each of the power plants, a supply amount acquisition unit that acquires the amount of power transmitted to a predetermined power network among the electric power generated at the power plant, and
A token issuing department that issues tokens according to the supply amount to the first account of the power plant in the blockchain,
For each of the consumers, a demand quantity acquisition unit that acquires the demand quantity received from the power network, and a demand quantity acquisition unit.
A power transmission amount determining unit that determines the amount of power transmitted from the power plant to the consumer for each group of the power plant and the consumer.
For each of the power plants, the power plant and the second accounts of the plurality of consumers in the group are used as destinations, the first account is used as the sender, and the amount of power transmission for each consumer is adjusted. A transaction issuer that issues a transaction that transfers the amount of tokens,
A power trading support system characterized by being equipped with.
[Item 2]
The electric power trading support system according to item 1.
It is configured to include a server device and a plurality of worker devices.
The worker device includes the transaction issuing unit.
The server device is a request transmission unit that distributes requests that specify the amount of tokens corresponding to the power transmission plant, the plurality of consumers, and the transmission amount corresponding to the consumers, and transmits the requests to the plurality of worker devices. With
The transaction issuing unit issues the transaction in response to the request.
A power trading support system featuring.
[Item 3]
The electric power trading support system described in item 2.
The worker device must be deployed in multiple regions.
A power trading support system featuring.
[Item 4]
The electric power trading support system according to any one of items 1 to 3.
The transaction issuing unit issues a plurality of transactions in parallel.
A power trading support system featuring.
[Item 5]
A way to support electricity trading between multiple power plants and multiple consumers.
The computer
For each of the power plants, a step of acquiring the amount of power transmitted to a predetermined power network among the electric power generated at the power plant, and
A token issuing department that issues tokens according to the supply amount to the first account of the power plant in the blockchain,
For each of the consumers, a step of acquiring the amount of demand received from the power network, and
A power transmission amount determining unit that determines the amount of power transmitted from the power plant to the consumer for each group of the power plant and the consumer.
For each of the power plants, the power plant and the second accounts of the plurality of consumers in the group are used as destinations, the first account is used as the sender, and the amount of power transmission for each consumer is adjusted. The step of issuing a transaction to transfer the amount of the token, and
A power trading support method characterized by executing.
[Item 6]
A program to support electricity transactions between multiple power plants and multiple consumers.
On the computer
For each of the power plants, a step of acquiring the amount of power transmitted to a predetermined power network among the electric power generated at the power plant, and
A token issuing department that issues tokens according to the supply amount to the first account of the power plant in the blockchain,
For each of the consumers, a step of acquiring the amount of demand received from the power network, and
A power transmission amount determining unit that determines the amount of power transmitted from the power plant to the consumer for each group of the power plant and the consumer.
For each of the power plants, the power plant and the second accounts of the plurality of consumers in the group are used as destinations, the first account is used as the sender, and the amount of power transmission for each consumer is adjusted. The step of issuing a transaction to transfer the amount of the token, and
A program to execute.

<Details of the embodiment>
Hereinafter, the system according to the embodiment of the present invention will be described with reference to the drawings.
<Overview>
FIG. 1 is an image diagram showing a process of selling electric power by a power generation device. In recent years, the liberalization of electric power trading has progressed, and for example, as shown in FIG. 1, the electric power generated by a plurality of power plants 1 may be sold to a plurality of consumers 2 via a power transmission network 3. It became possible. A power plant and a consumer (or an electric power company that intervenes between them) may conclude a power purchase agreement (PPA). However, once the electric power generated by each power plant enters the transmission network 3, it is currently difficult to trace it. Therefore, it is difficult to realize PPA when using a power transmission network.

In the electric power transaction support system of the present embodiment, traceable electric power transaction, that is, a virtual PPA is realized between a plurality of power plants 1 and a plurality of consumers 2. Depending on the consumer 2, there is a need to procure electric power from a specific power plant 1, such as a power plant 1 in the hometown, a power plant 1 in a disaster area, or a power plant 1 of a famous company. In the electric power transaction support system of the present embodiment, electric power procurement from such a specific power plant 1 is virtually realized.

Specifically, a token (for example, 1 kWh = 1 token) corresponding to the amount of power generated by the power plant 1 (in the present embodiment, the amount of power transmitted to the power transmission network 3) can be set. The number of tokens per 1kWh can be set arbitrarily.) Is issued and registered in the account of power plant 1 in the blockchain. The accounts of the power plant 1 and the consumer 2 can be specified by, for example, their respective wallets.

Then, the amount of power received by the consumer 2 from the power transmission network 3 is matched with the amount of power generated by the power plant 1 and transmitted to the power transmission network 3. For matching, for example, a virtual PPA in which the consumer 2 receives a power supply from a specific power plant 1 is managed and used. For example, the amount of power (power generation amount) generated by the power plant 1 and supplied to the power transmission network 3 and the power transmission by the consumer 2 every predetermined unit time (for example, 15 minutes or 30 minutes). The amount of power received (demand) from the network 3 is acquired, and the amount of power generated from the power plant 1 is apportioned among a plurality of consumers 2 who have a PPA with the same power plant 1. The amount of electric energy (supply amount) supplied from the power plant 1 to the consumer 2 can be calculated. The apportionment can be performed, for example, at the ratio of the electric energy contracted by PPA.

On the other hand, on the blockchain network, tokens corresponding to the supply amount are sent from the account of the power plant 1 to the account of the consumer 2. As a result, it becomes possible to trace the electric power transaction in a pseudo manner, and it is possible to grasp that the electric power provided by the specific power plant 1 is pseudo-directly sold to the specific consumer 2. This makes it possible to realize a virtual PPA.

<System overview>
FIG. 2 is a diagram showing an overall configuration example of the electric power transaction support system according to the embodiment of the present invention. The electric power transaction support system of the present embodiment includes a blockchain network 10, a management server 20, and a plurality of worker devices 30. The blockchain network 10, the management server 20, and the plurality of worker devices 30 are connected to each other so as to be able to communicate with each other via the communication network. The communication network is, for example, the Internet, and is constructed by a public telephone line network, a mobile phone line network, a wireless communication path, Ethernet (registered trademark), and the like.

The blockchain network 10 is composed of a plurality of computer nodes that are communicably connected to each other by P2P (Peer to Peer) communication, and manages a blockchain that records token transactions as transactions. The configuration of the blockchain network 10 is assumed to be used for a general blockchain, and detailed description thereof will be omitted here.

The management server 20 is a computer that manages the history of transactions related to the virtual PPA between the power plant 1 and the consumer 2, and is realized by, for example, a personal computer, a workstation, or a virtual computer by cloud computing. To. As described above, the management server 20 manages the power flow related to the virtual PPA as the token flow in the blockchain network 10.

The worker device 30 is a computer that issues a transaction, and is realized by, for example, a personal computer, a workstation, or a virtual computer by cloud computing. A plurality of worker devices 30 are arranged. Further, the worker device 30 is deployed in a plurality of regions (areas in which computers are arranged). In the present embodiment, the worker device 30 issues a transaction in response to a request from the management server 20 and transmits the transaction to the blockchain network 10.

In the power transaction support system of the present embodiment, when issuing a transaction corresponding to a transaction related to a virtual PPA, a plurality of worker devices 30 issue transactions in parallel. In normal transaction management, transactions are sequentially issued in series, but as in the present embodiment, by issuing transactions using the worker device 30 in parallel, a large number of transactions corresponding to a large number of transactions are issued. Can be issued efficiently.

FIG. 3 is a diagram showing an example of hardware configuration of a computer used for a management server 20, a worker device 30, a node forming a blockchain network 10, and the like. The illustrated configuration is an example, and may have other configurations. The computer includes a CPU 101, a memory 102, a storage device 103, a communication interface 104, an input device 105, and an output device 106. The storage device 103 stores various data and programs, such as a hard disk drive, a solid state drive, and a flash memory. The communication interface 104 is an interface for connecting to a communication network, for example, an adapter for connecting to Ethernet (registered trademark), a modem for connecting to a public telephone network, a wireless communication device for performing wireless communication, and the like. It is a USB (Universal Serial Bus) connector or RS232C connector for serial communication. The input device 105 is, for example, a keyboard, a mouse, a touch panel, a button, a microphone, or the like for inputting data. The output device 106 is, for example, a display, a printer, a speaker, or the like that outputs data.

FIG. 4 is a diagram showing a software configuration example of the management server 20. The management server 20 includes a demand amount acquisition unit 211, a power generation amount acquisition unit 212, a matching processing unit 213, a request transmission unit 214, and a supplier storage unit 231. The demand amount acquisition unit 211, the power generation amount acquisition unit 212, the matching processing unit 213, and the request transmission unit 214 are executed by the CPU 101 reading the program stored in the storage device 103 into the memory 102 in the management server 20. It is realized, and the supplier storage unit 231 can be realized as a part of the storage area provided by the memory 102 of the management server 20 and the storage device 103.

The demand amount acquisition unit 211 acquires the demand amount of electric power by the consumer 2. The demand amount acquisition unit 211 can acquire the demand amount received from the power transmission network 3 from, for example, a smart meter arranged in a facility such as a residence, a factory, or a store of the consumer 2. The demand amount acquisition unit 211 shall acquire the demand amount for each predetermined unit time (for example, 15 minutes, 30 minutes, etc.).

The power generation amount acquisition unit 212 acquires the power generation amount from the power plant 1. The power generation amount acquisition unit 212 can acquire the power generation amount (the amount of power transmitted from the power plant 1 to the power transmission network 3) from, for example, a smart meter arranged in the power plant 1. The power generation amount acquisition unit 212 shall acquire the power generation amount for each predetermined unit time.

The supplier storage unit 231 stores information (hereinafter, referred to as supplier information) that associates the consumer 2 with the power plant 1 that is the source of the electric power related to the virtual PPA of the consumer 2. The supplier information can include the power plant 1 and the contracted electric energy in association with the consumer 2. The supplier information may include the priority of the power plant 1 corresponding to the consumer 2.

The matching processing unit 213 matches the power plant 1 with the consumer 2. The matching processing unit 213 determines the demand among the power plant 1, the consumer 2, and the power generation amount based on the demand amount acquired by the demand amount acquisition unit 211, the power generation amount acquired by the power generation amount acquisition unit 212, and the supplier information. The amount of supply supplied to the person 2 can be determined. For example, the matching processing unit 213 reads out the supplier information corresponding to the power plant 1 for each power plant 1, prorates the power generation amount using the contracted electric energy of the read source information, and obtains the supplier information. The supply amount for the consumer 2 can be calculated. FIG. 5 is a diagram showing an example of the result of matching by the matching processing unit 213. As in the example of FIG. 5, the power supply can be calculated for the set of the power plant 1 and the consumer 2.

The request transmission unit 214 performs a process for issuing a transaction for transferring the token according to the matching result. In the present embodiment, since the worker device 30 issues a transaction, the request transmission unit 214 supplies the worker device 30 with the power plant 1, the consumer 2, and the supply amount from the power plant 1 to the consumer 2. A request including information associated with the above (hereinafter referred to as transaction information) is transmitted to the worker device 30. The request transmission unit 214 selects the power plant 1, extracts the pair of the matched power plant 1 and the consumer 2 corresponding to the selected power plant 1, and collects all the extracted pairs. , The power plant 1, a plurality of consumers 2 to be supplied from the power plant 1, and the supply amount to the consumers 2 can be included in the request.

FIG. 6 is a diagram showing a software configuration example of the worker device 30. The worker device 30 includes a request receiving unit 311 and a transaction issuing unit 312.

The request receiving unit 311 receives the above-mentioned request from the management server 20.

The transaction issuing unit 312 issues a transaction in response to a request and transmits it to the blockchain network 10. As described above, the request includes a plurality of consumers 2 who are power supply destinations from the power plant 1 and the amount of power supplied to the consumers 2 in association with the power plant 1. Therefore, the transaction issuing unit 312 transmits a number of tokens corresponding to the amount of power supplied for each consumer 2 with the account of one power plant 1 as the transmission source and the accounts of a plurality of consumers 2 as the transmission destinations. A so-called one-to-N transaction is issued and transmitted to the blockchain network 5. It is assumed that the blockchain network 5 is an implementation system capable of processing a one-to-N transaction. As a result, it is possible to collectively issue transactions related to virtual PPA for all power transmission destinations (consumer 2) from the power plant 1 and issue a 1-to-N transaction for transferring the corresponding tokens.

<Operation>
FIG. 7 is a diagram illustrating the operation of the electric power trading support system of the present embodiment.

The management server 20 performs matching between the power plant 1 and the consumer 2 (S321), collects the transactions corresponding to each power plant 1 from the matching result (see FIG. 5) (S322), and summarizes the transactions, that is, Requests including transaction information extracted from the matching result corresponding to one power plant 1 are distributed and transmitted to the worker device 30 (S323). For example, the management server 20 can create a request for each of the plurality of power plants 1 and send the created request to different worker devices 30.

In the worker device 30, the account of one power plant 1 set is set as the transmission source in response to the request, and the account of the consumer 2 corresponds to the transmission destination and the amount of power supplied for each of the plurality of consumers 2. A one-to-N transaction set with the amount of tokens set as the amount of tokens to be transferred is issued and transmitted to the blockchain network 10 (S324).

As described above, according to the power transaction support system of the present embodiment, it is possible to realize a virtual PPA by matching a plurality of power plants 1 with a plurality of consumers 2. Further, by managing the tokens corresponding to the transactions related to the virtual PPA on the blockchain network 10, it is possible to manage the bilateral transactions of electric power with difficulty in tampering. Further, according to the electric power transaction support system of the present embodiment, when an electric power transaction is carried out with one power plant 1 as a supply source and a plurality of consumers 2 as supply destinations, a one-to-N transaction corresponding to this is performed. By issuing the transaction, it is possible to efficiently process the transaction for the blockchain network 10. Further, since transactions can be issued by the distributed worker devices 30, it is possible to reduce the processing load of the management server 20 that performs matching processing and perform efficient transaction issuing processing, and it takes time to issue transactions. You can save time. Further, by distributing the worker device 30 across a plurality of regions, it is possible to avoid a delay in transaction processing due to a network load.

Although the present embodiment has been described above, the above embodiment is for facilitating the understanding of the present invention, and is not for limiting and interpreting the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention also includes an equivalent thereof.

1 Power plant 2 Recipient 3 Transmission network 10 Blockchain network 20 Management server 30 Worker device 211 Demand amount acquisition unit 212 Power generation amount acquisition unit 213 Matching processing unit 214 Request transmission unit 231 Procurement destination storage unit 311 Request reception unit 312 Transaction issue unit

Claims (6)

A system to support the power trading between the plurality of power generation plant and a plurality of consumers,
For each of the power plant, a supply amount obtaining unit for obtaining the supply amount of the power to a predetermined power network of the electric power generated by the power plant,
A token issuing department that issues tokens according to the supply amount to the first account of the power generation establishment in the blockchain,
For each of the consumers, a demand quantity acquisition unit that acquires the demand quantity received from the power network, and a demand quantity acquisition unit.
Power transmission amount determining section for determining a transmission amount considered to have been sent to the consumer from the power plant for each set of the power plant and the consumer,
We said to each power plant, said each of the power generation plant and the second account of the set to become a plurality of the consumer as a destination, and the sender of the first account, the second from the first account A transaction issuing unit that issues a single transaction to the blockchain, which transfers the amount of the token according to the transmission amount for each consumer to each of the accounts.
A power trading support system characterized by being equipped with. The electric power transaction support system according to claim 1.
It is configured to include a server device and a plurality of worker devices.
The worker device includes the transaction issuing unit.
The server apparatus includes a request transmitting to transmit said request specifying the amount of the token corresponding to the transmission amount corresponding to the power plant as well as the plurality of consumers and the consumer is dispersed to the plurality of workers devices With a part
The transaction issuing unit issues the transaction in response to the request.
A power trading support system featuring. The electric power transaction support system according to claim 2.
The worker device must be deployed in multiple regions.
A power trading support system featuring. The electric power trading support system according to any one of claims 1 to 3.
The transaction issuing unit issues a plurality of transactions in parallel.
A power trading support system featuring. A method for supporting the power trading between the plurality of power generation plant and a plurality of consumers,
The computer
For each of the power generation plant, a step of acquiring the supply amount of the power to a predetermined power network of the electric power generated by the power plant,
The step of issuing tokens according to the supply amount to the first account of the power generation establishment in the blockchain,
For each of the consumers, a step of acquiring the amount of demand received from the power network, and
Determining a transmission amount considered to have been sent to the consumer from the power plant for each set of the power plant and the consumer,
We said to each power plant, said each of the power generation plant and the second account of the set to become a plurality of the consumer as a destination, and the sender of the first account, the second from the first account A step of issuing a single transaction to the blockchain that transfers the amount of the tokens to each of the accounts according to the amount of electricity transmitted by the consumer.
A power trading support method characterized by executing. A program to support the power trading between the plurality of power generation plant and a plurality of consumers,
On the computer
For each of the power generation plant, a step of acquiring the supply amount of the power to a predetermined power network of the electric power generated by the power plant,
The step of issuing tokens according to the supply amount to the first account of the power generation establishment in the blockchain,
For each of the consumers, a step of acquiring the amount of demand received from the power network and
Determining a transmission amount considered to have been sent to the consumer from the power plant for each set of the power plant and the consumer,
We said to each power plant, said each of the power generation plant and the second account of the set to become a plurality of the consumer as a destination, and the sender of the first account, the second from the first account A step of issuing a single transaction to the blockchain that transfers the amount of the tokens to each of the accounts according to the amount of electricity transmitted by the consumer.
A program to execute.

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