JP2022106501A - Electricity transaction system, electricity transaction method, and electricity transaction program - Google Patents

Abstract

To provide an electricity transaction system which enables stable electricity transaction.SOLUTION: An electricity transaction system which mediates electricity transaction between first users who sell electric power and second users who buy electric power includes: first terminals 2 which receive inputs of selling conditions for selling electric power to be presented to the second users, from the first users; a server device 1 which receives selling condition information indicating the selling conditions received by the first terminals 2, from the first terminals 2, and stores the received selling condition information in a storage unit 12; and second terminals 3 which receive the selling condition information from the server device 1, cause display units 31 to display the received selling condition information, and receive selections of the first users or the selling conditions from the second users. The selling conditions include information on an electricity transaction price and a power feeding period for the case of establishment of the electricity transaction.SELECTED DRAWING: Figure 1

Description

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

In recent years, electricity has been liberalized in Japan, and in 2016, consumers such as ordinary households and stores will be able to freely select from multiple retail electricity companies and make electricity supply contracts. Became. A retail electric power company procures electric power from a power generation company or the like in order to supply electric power to a user who has a contract for electric power supply.

Patent Document 1 discloses an electric power transaction management method suitable for providing a consumer with an environmental value certificate certifying that he / she has made a transaction with a power generation company that generates electricity by a power generation means using renewable energy.

Japanese Unexamined Patent Publication No. 2020-119143

By the way, in Japan, there is an electric power spot market provided by the Japan Electric Power Exchange (JEPX) as a place for electric power transactions (electricity procurement) between retail electric power companies and power generation companies. In the electric power spot market, an electric power transaction (buying and selling of electric power) is established by bidding on the amount of electric power sold by the power generation company and the selling price, and by bidding on the amount of electric power purchased by the retail electric power company and the purchase price. do.

In this electric power spot market, electric power transactions are carried out every frame (30 minutes), and the electric power transaction price is determined. That is, in the electric power spot market, the period in which the transaction price of electric power is determined by the electric power transaction is short. For this reason, in the electric power spot market, it is difficult to forecast the transaction price of electric power, and the management of the retail electric power company (or power generation company) may become unstable.

In particular, in this electric power spot market, the electric power price is determined in that the supply and demand of the bid (sell bid) from the power generation company and the bid (buy bid) from the retail electric power company are balanced. As a result, the transaction price of electric power fluctuates greatly depending on the bid amount of buying and selling, which makes it difficult to predict the transaction price of electric power.

Therefore, an object of the present invention is to provide an electric power trading system capable of stably performing electric power trading.

In order to solve the above problems, the power trading system according to the embodiment of the present invention is a power trading system that mediates power trading between a first user who sells power and a second user who buys power. The first terminal that accepts the input of the power selling condition, which is the power selling condition presented to the second user, from the first user, and the power selling that the first terminal receives from the first terminal. A server device that receives power selling condition information indicating conditions and stores the received power selling condition information in a storage unit, and receives the power selling condition information from the server device and displays the received power selling condition information. It is provided with a second terminal that is displayed on the unit and accepts the selection of the first user or the power selling condition from the second user, and the power selling condition includes the transaction price of the power when the power transaction is established. And information about the power supply period is included.

According to the embodiment of the present invention, the first terminal receives the power selling condition presented to the second user from the first user. The server device stores the power selling condition received by the first terminal in the storage unit. The second terminal displays the power selling condition stored in the storage unit of the server device on the display unit, and accepts the selection of the first user or the power selling condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

In addition, the power sale conditions accepted by the first terminal include information on the transaction price of power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by setting the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

Further, the power supply period may include a period of an hour unit or a period of a day unit.

In Japan, in addition to the electric power spot market, there is a forward market provided by the Japan Electric Power Exchange as a place for electric power trading. In the forward market, electricity can be traded on a weekly or monthly basis, but it is not possible to trade on an hourly or daily basis. On the other hand, according to the embodiment of the present invention, the first terminal receives input from the first user for a period of time or day as the power supply period of electric power. As a result, the first user can set the power supply period in units of days or hours, so that the power supply period can be set flexibly.

Further, the storage unit may store credit information indicating the creditworthiness of the second user in a commercial transaction, and the server device may distribute the credit information to the first terminal.

According to the embodiment of the present invention, since the credit information indicating the creditworthiness of the second user is distributed from the server device to the first terminal, the first user can carry out the electric power transaction while referring to the credit information. As a result, the first user can determine whether or not to conclude the electric power transaction in consideration of the credit information of the second user.

Further, the server device may predict the transaction price of electric power corresponding to the power supply period in the electric power trading market and deliver the prediction result to the second terminal.

According to the embodiment of the present invention, the prediction result of the transaction price of electric power corresponding to the power supply period in the electric power transaction market is delivered from the server device to the second terminal. As a result, the second user can carry out the electric power transaction while comparing the predicted result of the electric power transaction price in the electric power transaction market with the electric power sale condition.

Further, the power selling condition includes the emission coefficient of greenhouse gas of the power generation facility that supplies power to the second user when the power transaction is established, and the amount of activity by the power generation facility. The server device may calculate the greenhouse gas emission amount of the power generation facility based on the emission coefficient and the activity amount, and deliver the calculation result to the second terminal.

According to the embodiment of the present invention, the amount of greenhouse gas emissions of the power generation facility when the electric power transaction is established is distributed from the server device to the second terminal. As a result, the second user can carry out the electric power transaction in consideration of the greenhouse gas emission amount of the power generation facility.

Further, the power selling condition may include the type of the power generation facility, and the server device may deliver the type of the power generation facility to the second terminal.

According to the embodiment of the present invention, the type of power generation equipment in the case where the electric power transaction is established is distributed from the server device to the second terminal. This allows the second user to identify that electricity is supplied from a type of power generation facility that can reduce or reduce greenhouse gas emissions. It is possible to meet the criteria that require the identification of power generation equipment for emission control.

Further, the server device may deliver information on accounting processing to the first terminal or the second terminal when the power transaction is completed.

According to the embodiment of the present invention, when the electric power transaction is established, the information regarding the accounting process is distributed from the server device to the first terminal or the second terminal. As a result, it is possible to notify the first user or the second user of information regarding accounting treatment different from normal accounting treatment, such as hedge accounting treatment and environmental value accounting treatment.

Further, the first user may include one or more first users, and the second user may include one or more second users.

According to the embodiment of the present invention, the first user and the second user can perform one-to-one, one-to-many, multiple-to-one, or multiple-to-many power transactions.

Further, the storage unit may be one of a plurality of storage devices constituting the distributed ledger.

According to the embodiment of the present invention, since the storage unit is one of a plurality of storage devices constituting the distributed ledger, the information stored in the storage unit is less likely to be tampered with.

Further, the power transaction system according to another embodiment of the present invention is a power transaction system that mediates power transactions between a first user who purchases power and a second user who sells power, and the first user. From the first terminal that accepts the power purchase condition that is the power purchase condition presented to the second user, and from the first terminal, the power purchase condition information indicating the power purchase condition that the first terminal has received is received. Then, the server device that stores the received power purchase condition information in the storage unit, the power purchase condition information that is received from the server device, and the received power purchase condition information are displayed on the display unit, and the second user The first user or the second terminal that accepts the selection of the power purchase condition is provided, and the power purchase condition includes information on the transaction price of the power and the power supply period when the power transaction is established.

According to the embodiment of the present invention, the first terminal receives the power purchase condition presented to the second user from the first user. The server device stores the power purchase condition received by the first terminal in the storage unit. The second terminal displays the power purchase condition stored in the storage unit of the server device on the display unit, and accepts the selection of the first user or the power purchase condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

In addition, the power purchase conditions accepted by the first terminal include information on the transaction price of power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by setting the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

Further, the power trading method according to another embodiment of the present invention is a power trading method that mediates power trading between a first user who sells power and a second user who buys power, and the first terminal is used. The step of receiving the input of the power selling condition, which is the power selling condition presented to the second user, from the first user, and the selling of the power received by the first terminal from the first terminal by the server device. A step of receiving the power selling condition information indicating the power condition and storing the received power selling condition information in the storage unit, and the second terminal receiving the power selling condition information from the server device and receiving the power selling condition information. The power sale condition includes a step of displaying the power condition information on the display unit and accepting the selection of the first user or the power sale condition from the second user, and the power sale condition includes the power when the power transaction is established. Contains information about transaction prices and power supply periods.

According to the embodiment of the present invention, the first terminal receives the power selling condition presented to the second user from the first user. The server device stores the power selling condition received by the first terminal in the storage unit. The second terminal displays the power selling condition stored in the storage unit of the server device on the display unit, and accepts the selection of the first user or the power selling condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

In addition, the power sale conditions accepted by the first terminal include information on the transaction price of power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by setting the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

According to the embodiment of the present invention, electric power trading can be stably performed.

The block diagram which shows the structure of the electric power trading system which concerns on this embodiment. The conceptual diagram which shows an example of the power sale condition DB which concerns on this embodiment. The conceptual diagram which shows an example of the transaction establishment DB which concerns on this embodiment. The flowchart which shows the operation of the electric power trading system which concerns on this embodiment. The flowchart which shows the operation of the electric power trading system which concerns on this embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of preferred embodiments is merely exemplary and is not intended to limit the invention, its applications or its uses.

The electric power trading system according to the present embodiment is used to mediate an electric power transaction between a first user who sells electric power and a second user who buys electric power.

FIG. 1 is a block diagram showing a configuration of an electric power trading system according to the present embodiment. As shown in FIG. 1, the electric power trading system according to the present embodiment includes a server device 1, a plurality of first terminals 2, and a plurality of second terminals 3. The server device 1 is configured to be able to communicate with a plurality of first terminals 2 and a plurality of second terminals 3 via a communication network N.

The first terminal 2 is, for example, a general-purpose PC or the like, and is operated by the first user. The first user includes, for example, a power generation company, a trader, a consumer who has a power generation facility such as solar power generation (prosumer), and a person who supplies (sells) power.

The first terminal 2 includes, for example, a display unit 21 such as a display and an operation unit 22 such as a keyboard and a mouse. The first terminal 2 receives an operation input from the first user by the operation unit 22. The first terminal 2 transmits information indicating this operation input to the server device 1 via the communication network N.

The second terminal 3 is a PC or the like having the same configuration as the first terminal 2, and is operated by the second user. The second user includes, for example, a retail electric power company, a consumer, and other persons who receive (purchase) electric power.

Like the first terminal, the second terminal 3 includes a display unit 31 and an operation unit 32. The second terminal 3 receives the operation input from the second user by the operation unit 32, and transmits the information indicating the received operation input to the server device 1 via the communication network N.

(About the configuration of server device 1)
As shown in FIG. 1, the server device 1 includes a communication unit 11, a storage unit 12, and a control unit 13.

The communication unit 11 is composed of, for example, an electric circuit or the like, and communicates with the first terminal 2 and the second terminal 3 via the communication network N.

The storage unit 12 is a storage medium composed of a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disk Drive), an SSD (Solid State Drive), and the like. The storage unit 12 stores various programs executed by the control unit 13.

In addition, various databases (DBs) are configured in the storage unit 12. Specifically, the power sale condition DB and the transaction establishment DB are stored in the storage unit 12. The power selling condition DB stores information indicating conditions when the first user sells power to the second user. Information on the completed electric power transaction is stored in the transaction completion DB.

FIG. 2 is a conceptual diagram showing an example of the power selling condition DB according to the present embodiment. The power selling condition DB stores the power selling condition presented to the second user when the first user sells power. As shown in FIG. 2, the credit information, the power supply area, the power supply pattern, the power supply start date, the power supply end date, the contracted electric energy, the electric power charge, the payment due date, etc. are associated with each user ID indicating the identification information of the first user. ing. Although not shown, the power sale conditions may include other conditions including a period or deadline for accepting an application for power purchase.

The credit information is information indicating the creditworthiness of the first user in commercial transactions, and is determined according to, for example, the ability to pay the price of the first user (such as owned assets and collateral) and the creditworthiness of the first user's power supply. It is a thing. In FIG. 2, it is represented by three stages A to C. This credit information is set, for example, based on the survey results of a predetermined credit research company.

The power supply area indicates an area (inside the jurisdiction) to which the first user supplies power. The power supply pattern indicates a time zone in which the first user supplies power. The power supply start date and power supply end date indicate the start date and end date when the first user starts power supply, respectively. The contracted electric energy indicates the electric energy supplied by the first user to the second user when the transaction is completed. The electric power charge indicates the transaction price of electric power when the electric power transaction is completed. The payment due date indicates the payment due date when the electric power transaction is completed. The power supply period in the present embodiment includes conditions related to a period when the first user sells power to the second user, such as a power supply pattern, a power supply start date, and a power supply end date. For example, in FIG. 2, the power supply period under the power sale condition of the user ID U_002 may be "2020/2/1 to 2020/2/8" depending on the power supply start date and the power supply end date, and further includes the power supply pattern "2020 /". It may be "12:00 to 24:00 from 2/1 to 2020/2/8". Further, although not shown in this figure, the power supply period under the power sale condition may be specified only by the power supply pattern such as "12:00 to 24:00" regardless of the power supply start date and the power supply end date. In this case, the actual power supply period after the transaction is completed is from the power supply start date agreed between the second user who applied for the power purchase for the power sale condition indicated by the first user and the first user. It may be the period of power supply according to the specified power supply pattern until the end date.

FIG. 3 is a conceptual diagram showing an example of a transaction establishment DB according to the present embodiment. Information indicating the completed electric power transaction is stored in the transaction completion DB. Specifically, in the transaction establishment DB, the user IDs of the first user and the second user for which the electric power transaction has been established are stored in the first user ID and the second user ID, respectively. Then, in the transaction establishment DB, information on the established power transaction (power supply area, power supply pattern, power supply start date, power supply end date, contract electric energy, power charge, payment date, etc.) is stored in the user IDs of the first and second users. Information) is associated. As will be described later, the transaction establishment DB shown in FIG. 3 stores information on the power sale condition in which the power transaction is established among the power sale condition DB shown in FIG. 2, and the power sale condition shown in FIG. 2 is stored. In the condition DB, the power sale condition is deleted. Since FIGS. 2 and 3 of the present application show examples of the power selling condition DB and the transaction closing DB at the same time point, the information stored in the power selling condition DB shown in FIG. 2 and the transaction closing DB shown in FIG. 3 are used. It is not related to the stored information (that is, the transaction closing DB shown in FIG. 3 stores the information related to the power selling condition already deleted from the power selling condition DB shown in FIG. 2, which is shown in FIG. The new power selling condition is stored in the power selling condition DB shown in 2).

The control unit 13 is composed of, for example, a microcomputer including a CPU (Central Processing Unit), a semiconductor memory, and the like. The control unit 13 controls each unit of the server device 1 by executing a program or the like stored in the storage unit 12.

Further, the control unit 13 includes a first screen processing unit 131, a condition registration unit 132, a second screen processing unit 133, and a transaction establishment processing unit 134.

The first screen processing unit 131 controls the first screen displayed on the display unit 21 of the first terminal 2 in response to an operation from the first user to the operation unit 22 of the first terminal 2. Various items included in the power sale condition are displayed on the first screen, and input for each item from the first user is accepted. Here, the first screen accepts inputs for items such as a power supply area, a power supply pattern, a power supply start date, a power supply end date, a contracted electric energy, an electric power charge, and a payment due date.

The condition registration unit 132 performs a registration process in which the power sale condition received by the first screen processing unit 131 is stored in the power sale condition DB. Specifically, in the power selling condition DB, information on the power selling condition is associated with the user ID corresponding to the first user.

The second screen processing unit 133 controls the second screen displayed on the display unit 31 of the second terminal 3 in response to the operation of the second user to the operation unit 32 of the second terminal 3. On the second screen, a list of power selling conditions stored in the power selling condition DB is displayed. Here, on the second screen, the credit information, the power supply area, the power supply pattern, the power supply start date, the power supply end date, the contracted electric energy, and the power charge associated with each user ID as the power sale condition in the power sale condition DB are displayed. , Information such as payment due date is displayed. Then, the second screen processing unit 133 accepts the selection of the first user (or power selling condition) from the second user on the second screen. The second screen processing unit 133 does not have to display information (for example, a company name or an individual name) that identifies the first user on the second screen.

The transaction closing processing unit 134 performs a transaction closing process that concludes a power transaction between the first user and the second user based on the selection received by the second screen processing unit 133. Specifically, the transaction establishment processing unit 134 deletes the power sale condition for which the electric power transaction has been established from the power sale condition DB, and stores the information regarding the electric power transaction for which the electric power transaction has been established in the transaction establishment DB. Then, when the electric power transaction is established, the transaction establishment processing unit 134 notifies the first user and the second user that the electric power transaction has been established.

(About the operation of the electricity trading system)
4 and 5 are flowcharts showing the operation of the electric power trading system according to the present embodiment. Specifically, FIG. 4 shows a series of flow of registration processing, and FIG. 5 shows a series of flow of transaction closing process.

First, the registration process will be described with reference to FIG.

When the first user performs a start operation for setting the power selling condition on the operation unit 22 of the first terminal 2, the first terminal 2 displays the first screen on the server device 1 on the display unit 21. Request the first screen data necessary for displaying in (step S11).

When the first screen processing unit 131 of the server device 1 receives the request for the first screen data (step S12), the first screen processing unit 131 transmits the first screen data to the first terminal 2 (step S13).

When the first terminal 2 receives the first screen data (step S14), the first terminal 2 displays the first screen on the display unit 21 (step S15). On this first screen, various items under the power selling conditions (for example, power supply area, power supply pattern, power supply start date, power supply end date, contracted electric energy, electric power charge, payment due date, etc.) are displayed. Then, the first terminal 2 receives an input for each item from the first user on the first screen.

When the first terminal 2 receives an input for each item from the first user on the first screen (step S16), the first terminal 2 generates first data indicating the input result (step S17). Then, the first terminal 2 transmits the generated first data to the server device 1 (step S18).

When the first screen processing unit 131 of the server device 1 receives the first data (step S19), the condition registration unit 132 detects the information regarding the power selling condition included in the first data. Then, the condition registration unit 132 performs a registration process of storing the detected information on the power sale condition in the power sale condition DB (step S20). Specifically, the condition registration unit 132 associates the information related to the power selling condition with the user ID corresponding to the first user in the power selling condition DB.

Next, the transaction closing process will be described with reference to FIG.

When the second user performs a start operation for conducting a power transaction with the operation unit 32 of the second terminal 3, the second terminal 3 generates a second screen on the display unit 31 for the server device 1. Request the second screen data necessary for this (step S31).

When the second screen processing unit 133 of the server device 1 receives the request for the second screen data (step S32), the information regarding the power selling condition stored in the power selling condition DB from the storage unit 12 (for example, credit information, power supply). Information such as area, power supply pattern, power supply start date, power supply end date, contracted electric energy, electric power charge, payment due date, etc.) is read out (step S33). Then, the second screen processing unit 133 generates the second screen data including the list of power selling conditions (step S34), and transmits the generated second screen data to the second terminal 3 (step S35).

When the second terminal 3 receives the second screen data (step S36), the second terminal 3 displays the second screen on the display unit 31 (step S37). A list of power selling conditions is displayed on this second screen. Here, on the second screen, as information on the power selling conditions, for example, information such as credit information, power supply area, power supply pattern, power supply start date, power supply end date, contracted electric energy, electric power charge, and payment due date are displayed. To. Then, the second terminal 3 accepts the selection of the first user or the power selling condition from the second user on the second screen.

When the second terminal 3 receives the selection of the first user to purchase power or the power selling condition from the second user on the second screen (step S38), the second terminal 3 generates the second data indicating the selection result (step S39). .. Then, the second terminal 3 transmits the generated second data to the server device 1 (step S40).

When the second screen processing unit 133 of the server device 1 receives the second data (step S41), the transaction closing processing unit 134 performs the transaction closing process of closing the power transaction between the first user and the second user (step S41). S42). Specifically, the transaction closing processing unit 134 detects the power selling condition selected by the second user included in the second data, deletes the detected power selling condition from the power selling condition DB, and deletes the detected power selling condition from the power selling condition DB, and the transaction closing DB. Stores information about power transactions that have been completed in. Then, the transaction completion processing unit 134 notifies the first user and the second user that the electric power transaction has been completed. Here, the transaction establishment processing unit 134 further outputs data indicating the consent of the first user from the first terminal 2 to the first screen processing unit 131 after the second screen processing unit 133 of the server device 1 receives the second data. When the user receives the data, the transaction establishment process for establishing the electric power transaction between the first user and the second user may be performed. Further, the server device 1 may store the second user-related information including the credit information of the second user in the storage unit 12 before the transaction closing process, and the second user-related information includes the second user's credit information. The credit risk information of the second user based on the credit information may be included. Further, when the second screen processing unit 133 receives the second data, the server device 1 transmits the second user-related information regarding the second data to the first terminal 2, and the first terminal 2 receives the second user. Data indicating the consent of the first user based on the related information may be transmitted to the first screen processing unit 131 of the server device 1. As a result, the first user can determine whether or not to conclude the transaction in consideration of the credit risk of the second user.

As described above, the electric power trading system according to the present embodiment is an electric power trading system that mediates electric power transactions between a first user who sells electric power and a second user who buys electric power. The power trading system according to the present embodiment has a first terminal 2 that accepts input of a power selling condition, which is a power selling condition presented to a second user, from a first user, and a first terminal from the first terminal 2. The server device 1 having a storage unit 12 that receives the first data (power selling condition information) indicating the power selling condition received by 2 and stores the received first data, and the second screen data (selling) from the server device 1. It is provided with a second terminal 3 that receives (electrical condition information), displays the received second screen data on the display unit 31, and accepts the selection of the first user or the electric power selling condition from the second user. The power sale condition includes information on the power charge (power transaction price), power supply pattern, power supply start date and power supply end date (power supply period) when the power transaction is completed.

According to this configuration, the first terminal 2 receives the power selling condition presented to the second user from the first user. The server device 1 stores the power selling conditions received by the first terminal 2 in the storage unit 12. The second terminal 3 displays the power selling condition stored in the storage unit 12 on the display unit, and accepts the selection of the first user or the power selling condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

Further, the power selling condition accepted by the first terminal 2 includes information on the transaction price of the power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by setting the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

In addition, the power supply period includes a power supply pattern, a power supply start date, and a power supply end date (hourly or daily period). In Japan, in addition to the electric power spot market, there is a forward market provided by the Japan Electric Power Exchange as a place for electric power trading. In the forward market, electricity can be traded on a weekly or monthly basis, but it is not possible to trade on an hourly or daily basis. On the other hand, in the present embodiment, the first terminal 2 receives input from the first user as a power supply period for a time unit or a day unit such as a power supply pattern, a power supply start date, and a power supply end date. .. As a result, the first user can set the power supply period in units of days or hours, so that the power supply period can be set flexibly.

Further, the storage unit 12 stores credit information indicating the creditworthiness of the first user, which is determined according to the solvency of the first user. The server device 1 transmits (distributes) credit information to the second terminal 3.

According to this configuration, since the credit information indicating the creditworthiness of the first user is distributed from the server device 1 to the second terminal 3, the second user can carry out the electric power transaction while referring to the credit information. Thereby, the second user can determine whether or not the electric power can be stably supplied from the first user when the electric power transaction is concluded.

(Other embodiments)
As described above, embodiments have been described as an example of the techniques disclosed in this application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. are made as appropriate.

In the above embodiment, the first user is a business operator that supplies power (sells power), and the second user is a business operator that receives power supply (purchases power), but the first user and the second user May be reversed. That is, the first user may be the business operator who purchases power, and the second user may be the business operator who sells power. In this case, the storage unit 12 is configured with a power purchase condition DB instead of the power sale condition DB. The power purchase condition DB stores the power purchase condition presented to the second user when the first user purchases power. That is, in the power trading system, the first user operates the first terminal 2 to input the power purchase condition, and the storage unit 12 of the server device 1 stores the input power purchase condition DB. It may be managed and the second user may operate the second terminal 3 to conclude a power transaction with the first user. As a result, even when the conditions of the electric power transaction are presented from the user who purchases the electric power to the user who sells the electric power, the electric power transaction can be stably performed.

In addition, the server device 1 has a function of predicting fluctuations in the transaction price of electric power in the electric power trading market such as the electric power spot market, the forward market, and the same-day market where the electric power is traded on the day provided by the Japan Electric Power Exchange (JEPX). , The prediction result may be delivered to at least one of the first terminal 2 and the second terminal 3. This function includes, for example, weather, temperature, power plant shutdown information, power reserve reserve, interconnection free capacity, forward curve (including those related to electricity, coal, crude oil and LNG), coal import prices, crude oil imports. It can be realized by a learning model generated based on information such as prices, LNG import prices, and past fluctuations in electric power transaction prices in the electric power spot market, and statistical methods based on such information. With this configuration, the second user can carry out the electric power transaction while comparing the predicted result of the electric power transaction price in the electric power trading market with the electric power selling condition.

Further, the server device 1 may have a function of calculating the greenhouse gas emission amount of the power generation facility based on the greenhouse gas emission coefficient of the power generation facility that supplies power and the activity amount of the power generation facility. good. In this case, the server device 1 distributes the calculation result to the second terminal 3. For example, in step S16, the first screen receives input of the emission coefficient of the greenhouse gas (for example, carbon dioxide, methane, etc.) of the power generation facility and the activity amount of the power generation facility. The amount of activity of this power generation facility is the amount of fuel used or incinerated when operating the power generation facility. The server device 1 multiplies the greenhouse gas emission coefficient of the power generation facility input on the first screen by the activity amount of the power generation facility, so that the greenhouse gas emitted by the power generation facility generates power. Calculate the amount of emissions. For example, when a coal-fired power plant uses "general coal" (fuel type) to generate power, the emission coefficient of the greenhouse gas of the coal-fired power plant is 25.7 GJ / t, which is the calorific value of the steamed coal. It is 0.63478tC / t multiplied by the emission coefficient 0.0247tC / GJ for use. The server device 1 calculates the amount of greenhouse gas emissions by multiplying this emission count by the amount of activity (fuel consumption) and a predetermined coefficient (coefficient set according to the type of greenhouse gas). .. As a result, the second user can carry out the electric power transaction in consideration of the greenhouse gas emission amount of the power generation facility.

Further, the server device 1 may include a function of calculating the total amount of greenhouse gas emissions of the second user, and may distribute the calculation result to the second user. For example, the server device 1 adds the total greenhouse gas emissions of the power generation facility owned by the second user and the total greenhouse gas emissions of the power generation facility for which the power transaction has been established according to the present embodiment. Calculates the total greenhouse gas emissions of the second user. As a result, the second user can know the total amount of greenhouse gas emissions of the second user, and thus can carry out electricity trading in consideration of the greenhouse gas reduction target.

Further, the server device 1 may have a function of managing the type of the power generation equipment in addition to the function of calculating the amount of greenhouse gas emissions of the power generation equipment. In this case, the server device 1 distributes information indicating the type of power generation equipment to the second terminal 3. For example, in step S16, the first screen receives input of the type of power generation equipment (thermal power, hydraulic power, nuclear power, solar power, wind power, geothermal power, biomass, etc.). Here, at present, there is an initiative called RE100 (Renewable Energy 100%), which aims to cover the power consumption of its own business with 100% renewable energy. In this effort, "renewable energy" is defined as "hydropower, solar power, wind power, geothermal power, biomass". That is, when the server device 1 distributes the information indicating the type of the power generation facility to the second terminal 3, the second user can use the greenhouse gas together with the power source information such as the location of the power generation facility as the basic information of the first user. Since it is possible to specify that electricity is supplied from a type of power generation facility that can reduce or reduce the emission of electricity, it is necessary to specify the power generation facility in order to control the emission of greenhouse gas such as RE100 when procuring electricity. Can meet the criteria.

Further, the server device 1 may have a function of distributing information on accounting processing to the first terminal or the second terminal when the electric power transaction is completed.

The accounting information is, for example, information about hedge accounting. Electricity trading is a futures contract because it is a transaction that promises to supply and settle the electricity in the future receiving period. In particular, in this electric power trading system, since the first user can freely set the power supply period, profit or loss may not be fixed at the end of the fiscal year. In this case, an accounting treatment called hedge accounting, in which the accounting treatment is deferred until the profit or loss is fixed, must be performed. The server device 1 distributes information related to this hedge accounting process (specific accounting procedure, etc.) to the first terminal 2 and the second terminal 3. As a result, the first user and the second user can perform appropriate accounting treatment.

Further, the information regarding the accounting treatment may be information regarding the accounting treatment of the environmental value. If the first user sells renewable energy and meets various conditions, the second user can obtain environmental values such as "green power certificate", "J-credit", and "non-fossil certificate". This environmental value is the object of commercial transactions and has monetary value. Therefore, the second user needs to record the environmental value when performing accounting treatment. The server device 1 may distribute the information regarding the accounting treatment of the environmental value (specific accounting procedure, etc.) to the first terminal 2 and the second terminal 3.

Further, in the above embodiment, the case where the first user and the second user perform a one-to-one electric power transaction is given as an example, but one first user and a plurality of second users can perform an electric power transaction. Alternatively, a plurality of first users and one second user may carry out electric power transactions, or a plurality of first users and a plurality of second users may carry out electric power transactions.

Specifically, when one first user and a plurality of second users carry out electric power transactions, for example, the contracted electric energy of the electric power selling conditions (or electric power purchasing conditions) presented by the one first user. If is 10,000 kWh, one of the second users applies at 3,000 kWh, and the other one of the second users applies at 7,000 kWh, so that the two second users can apply. The contracted electric energy of the power selling condition (or power purchasing condition) by the first user may be jointly satisfied. Here, in this modification, the power selling condition or the power purchasing condition may further include a contract period. In this case, for example, even if some second users select a part of the conditions for the power sale condition (or power purchase condition) with a certain contract period by one first user, the contract If all of the power selling conditions (or power purchasing conditions) are not met by the other second user by the deadline, the application by the second user who has made some of the selections may be invalidated after the contract deadline has passed. ..

Further, when a plurality of first users and one second user conduct electric power transactions, for example, the plurality of first users jointly present one power selling condition (or power purchasing condition) and one person. A second user may conclude a power transaction by applying for the power sale condition. In this case, the power selling condition or the power purchasing condition may further include a contract period.

Further, when a plurality of first users and a plurality of second users perform electric power transactions, for example, the plurality of first users jointly present a power selling condition (or a power purchasing condition), and the presented power selling conditions are met. If the contracted electric energy is 10,000 kWh, one of the second users applies at 3,000 kWh, and the other one of the second users applies at 7,000 kWh, so that the second user can apply. The two persons may jointly satisfy the contracted electric energy of the power selling condition (or power purchasing condition) by the first user. In this case, for example, even if some second users select a part of the conditions for the power sale condition (or power purchase condition) with a certain contract period by a plurality of first users, the contract period If all of the power selling conditions (or power purchasing conditions) are not satisfied by the other second user by then, the application by the second user who has made some of the selections may be invalidated after the contract expiration date. ..

Further, the server device 1 manages information on the power sale condition (or power purchase condition) and the transaction establishment by the power sale condition DB (or the power purchase condition DB) and the transaction establishment DB, but the present invention is not limited to this. For example, using a distributed ledger technique such as a blockchain, information on power selling conditions (or power purchasing conditions) and transaction establishment may be managed by a plurality of storage devices. In this case, the plurality of storage devices may be included in each of the server device 1, the first terminal 2, the second terminal 3, and other terminal devices. For example, when one terminal generates a transaction according to a smart contract and another terminal makes an agreement according to a consensus algorithm, the transaction is recorded in a blockchain (distributed ledger). As a result, it is possible to prevent falsification of information and ensure traceability of information.

Further, the server device 1 may have a function of changing the power selling condition (or power purchasing condition) stored in the power selling condition DB (or the power purchasing condition DB) according to the information received from the first terminal 2. That is, the first user may be able to change the power selling conditions input to the first terminal 2 after the fact. In this case, some of the information included in the power sale conditions (for example, power charge, power supply period, etc.) may not be changed. Further, the second user may operate the second terminal 3 so that the first user can wish to change the information that can be changed in the power selling conditions. As a result, the second user can negotiate with the first user, which makes it easier to conclude a power transaction.

The electric power trading system according to the present embodiment may be linked with a credit card payment system, an account transfer system, or the like. In this case, for example, the communication terminal (mobile phone, PC, etc.) of the consumer (the person who receives the power supply from the retail electric power company) accepts the payment information such as the consumer's credit card number and account number, and credits. Payment information may be registered in a card payment system or an account transfer system. As a result, the power trading system can manage the payment information of the user.

Further, the server device 1 of the power trading system according to the present embodiment may be provided with a function capable of detecting information on the credit card from an image obtained by taking a credit card. For example, the server device 1 is configured to be able to communicate with a user's communication terminal (mobile phone, PC, etc.) and a credit card payment system. The server device 1 receives an image of the user's credit card from the user's communication terminal, and from the received image, for example, by using a character reading technique such as OCR (Optical character recognition), the user's credit card number or the like can be obtained. The information may be read and notified to the credit card payment system. This saves the trouble of inputting payment information.

Further, the electric power trading system according to the present embodiment may be linked with a customer management system that manages various information used for billing the user's electric power charge such as the user's name, address, telephone number and electric power usage. good. Thereby, for example, the user can be billed for the electricity charge according to the amount of electric power used.

Further, the server device 1 may be a plurality of devices or one server device 1. One server device may be provided for each function of the server device 1. Further, each function of the server device 1 may be jointly realized by a plurality of devices.

The electric power trading system according to the present embodiment conducts electric power trading based on the input of the electric power selling condition, which is the electric power selling condition received by the first terminal from the first user, and the selection received by the second terminal from the second user. In order to establish it, it is possible to mediate the electric power transaction between the first user and the second user.

1 Server device 12 Storage unit 13 Control unit 131 1st screen processing unit 132 Condition registration unit 133 2nd screen processing unit 134 Transaction closing processing unit 2 1st terminal 3 2nd terminal

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

In recent years, electricity has been liberalized in Japan, and in 2016, consumers such as ordinary households and stores will be able to freely select from multiple retail electricity companies and make electricity supply contracts. Became. A retail electric power company procures electric power from a power generation company or the like in order to supply electric power to a user who has a contract for electric power supply.

Patent Document 1 discloses an electric power transaction management method suitable for providing a consumer with an environmental value certificate certifying that he / she has made a transaction with a power generation company that generates electricity by a power generation means using renewable energy.

Japanese Unexamined Patent Publication No. 2020-119143

By the way, in Japan, there is an electric power spot market provided by the Japan Electric Power Exchange (JEPX) as a place for electric power transactions (electricity procurement) between retail electric power companies and power generation companies. In the electric power spot market, an electric power transaction (buying and selling of electric power) is established by bidding on the amount of electric power sold by the power generation company and the selling price, and by bidding on the amount of electric power purchased by the retail electric power company and the purchase price. do.

In this electric power spot market, electric power transactions are carried out every frame (30 minutes), and the electric power transaction price is determined. That is, in the electric power spot market, the period in which the transaction price of electric power is determined by the electric power transaction is short. For this reason, in the electric power spot market, it is difficult to forecast the transaction price of electric power, and the management of the retail electric power company (or power generation company) may become unstable.

In particular, in this electric power spot market, the electric power price is determined in that the supply and demand of the bid (sell bid) from the power generation company and the bid (buy bid) from the retail electric power company are balanced. As a result, the transaction price of electric power fluctuates greatly depending on the bid amount of buying and selling, which makes it difficult to predict the transaction price of electric power.

Therefore, an object of the present invention is to provide an electric power trading system capable of stably performing electric power trading.

In order to solve the above problems, the power trading system according to the embodiment of the present invention is a power trading system that mediates power trading between a first user who sells power and a second user who buys power. The first terminal that accepts the input of the power selling condition, which is the power selling condition presented to the second user, from the first user, and the power selling that the first terminal receives from the first terminal. A server device that receives power selling condition information indicating conditions and stores the received power selling condition information in a storage unit, and receives the power selling condition information from the server device and displays the received power selling condition information. It is provided with a second terminal that is displayed on the unit and accepts the selection of the first user or the power selling condition from the second user, and the power selling condition includes the transaction price of the power when the power transaction is established. And information about the power supply period is included.

According to the embodiment of the present invention, the first terminal receives the power selling condition presented to the second user from the first user. The server device stores the power selling condition received by the first terminal in the storage unit. The second terminal displays the power selling condition stored in the storage unit of the server device on the display unit, and accepts the selection of the first user or the power selling condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

In addition, the power sale conditions accepted by the first terminal include information on the transaction price of power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by setting the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

Further, the power supply period may include a period of an hour unit or a period of a day unit.

In Japan, in addition to the electric power spot market, there is a forward market provided by the Japan Electric Power Exchange as a place for electric power trading. In the forward market, electricity can be traded on a weekly or monthly basis, but it is not possible to trade on an hourly or daily basis. On the other hand, according to the embodiment of the present invention, the first terminal receives input from the first user for a period of time or day as the power supply period of electric power. As a result, the first user can set the power supply period in units of days or hours, so that the power supply period can be flexibly set.

Further, the storage unit may store credit information indicating the creditworthiness of the second user in a commercial transaction, and the server device may distribute the credit information to the first terminal.

According to the embodiment of the present invention, since the credit information indicating the creditworthiness of the second user is distributed from the server device to the first terminal, the first user can carry out the electric power transaction while referring to the credit information. As a result, the first user can determine whether or not to conclude the electric power transaction in consideration of the credit information of the second user.

Further, the server device may predict the transaction price of electric power corresponding to the power supply period in the electric power trading market and deliver the prediction result to the second terminal.

According to the embodiment of the present invention, the prediction result of the transaction price of electric power corresponding to the power supply period in the electric power transaction market is delivered from the server device to the second terminal. As a result, the second user can carry out the electric power transaction while comparing the predicted result of the electric power transaction price in the electric power transaction market with the electric power sale condition.

Further, the power selling condition includes the emission coefficient of greenhouse gas of the power generation facility that supplies power to the second user when the power transaction is established, and the amount of activity by the power generation facility. The server device may calculate the greenhouse gas emission amount of the power generation facility based on the emission coefficient and the activity amount, and deliver the calculation result to the second terminal.

According to the embodiment of the present invention, the amount of greenhouse gas emissions of the power generation facility when the electric power transaction is established is distributed from the server device to the second terminal. As a result, the second user can carry out the electric power transaction in consideration of the greenhouse gas emission amount of the power generation facility.

Further, the power selling condition may include the type of the power generation facility, and the server device may deliver the type of the power generation facility to the second terminal.

According to the embodiment of the present invention, the type of power generation equipment in the case where the electric power transaction is established is distributed from the server device to the second terminal. This allows the second user to identify that electricity is supplied from a type of power generation facility that can reduce or reduce greenhouse gas emissions, so that when procuring electricity, for example, RE100, a greenhouse gas It is possible to meet the criteria that require the identification of power generation equipment for emission control.

Further, the server device may deliver information on accounting processing to the first terminal or the second terminal when the power transaction is completed.

According to the embodiment of the present invention, when the electric power transaction is established, the information regarding the accounting process is distributed from the server device to the first terminal or the second terminal. As a result, it is possible to notify the first user or the second user of information regarding accounting treatment different from normal accounting treatment, such as hedge accounting treatment and environmental value accounting treatment.

Further, the first user may include one or more first users, and the second user may include one or more second users.

According to the embodiment of the present invention, the first user and the second user can perform one-to-one, one-to-many, multiple-to-one, or multiple-to-many power transactions.

Further, the storage unit may be one of a plurality of storage devices constituting the distributed ledger.

According to the embodiment of the present invention, since the storage unit is one of a plurality of storage devices constituting the distributed ledger, the information stored in the storage unit is less likely to be tampered with.

Further, the power transaction system according to another embodiment of the present invention is a power transaction system that mediates power transactions between a first user who purchases power and a second user who sells power, and the first user. From the first terminal that accepts the power purchase condition that is the power purchase condition presented to the second user, and from the first terminal, the power purchase condition information indicating the power purchase condition that the first terminal has received is received. Then, the server device that stores the received power purchase condition information in the storage unit, the power purchase condition information that is received from the server device, and the received power purchase condition information are displayed on the display unit, and the second user The first user or the second terminal that accepts the selection of the power purchase condition is provided, and the power purchase condition includes information on the transaction price of the power and the power supply period when the power transaction is established.

According to the embodiment of the present invention, the first terminal receives the power purchase condition presented to the second user from the first user. The server device stores the power purchase condition received by the first terminal in the storage unit. The second terminal displays the power purchase condition stored in the storage unit of the server device on the display unit, and accepts the selection of the first user or the power purchase condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

In addition, the power purchase conditions accepted by the first terminal include information on the transaction price of power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by determining the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

Further, the power trading method according to another embodiment of the present invention is a power trading method that mediates power trading between a first user who sells power and a second user who buys power, and the first terminal is used. The step of receiving the input of the power selling condition, which is the power selling condition presented to the second user, from the first user, and the selling of the power received by the first terminal from the first terminal by the server device. A step of receiving the power selling condition information indicating the power condition and storing the received power selling condition information in the storage unit, and the second terminal receiving the power selling condition information from the server device and receiving the power selling condition information. The power sale condition includes a step of displaying the power condition information on the display unit and accepting the selection of the first user or the power sale condition from the second user, and the power sale condition includes the power when the power transaction is established. Contains information about transaction prices and power supply periods.

According to the embodiment of the present invention, the first terminal receives the power selling condition presented to the second user from the first user. The server device stores the power selling condition received by the first terminal in the storage unit. The second terminal displays the power selling condition stored in the storage unit of the server device on the display unit, and accepts the selection of the first user or the power selling condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

In addition, the power sale conditions accepted by the first terminal include information on the transaction price of power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by setting the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

According to the embodiment of the present invention, electric power trading can be stably performed.

The block diagram which shows the structure of the electric power trading system which concerns on this embodiment. The conceptual diagram which shows an example of the power sale condition DB which concerns on this embodiment. The conceptual diagram which shows an example of the transaction establishment DB which concerns on this embodiment. The flowchart which shows the operation of the electric power trading system which concerns on this embodiment. The flowchart which shows the operation of the electric power trading system which concerns on this embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of preferred embodiments is merely exemplary and is not intended to limit the invention, its applications or its uses.

The electric power trading system according to the present embodiment is used to mediate an electric power transaction between a first user who sells electric power and a second user who buys electric power.

FIG. 1 is a block diagram showing a configuration of an electric power trading system according to the present embodiment. As shown in FIG. 1, the electric power trading system according to the present embodiment includes a server device 1, a plurality of first terminals 2, and a plurality of second terminals 3. The server device 1 is configured to be able to communicate with a plurality of first terminals 2 and a plurality of second terminals 3 via a communication network N.

The first terminal 2 is, for example, a general-purpose PC or the like, and is operated by the first user. The first user includes, for example, a power generation company, a trader, a consumer who has a power generation facility such as solar power generation (prosumer), and a person who supplies (sells) power.

The first terminal 2 includes, for example, a display unit 21 such as a display and an operation unit 22 such as a keyboard and a mouse. The first terminal 2 receives an operation input from the first user by the operation unit 22. The first terminal 2 transmits information indicating this operation input to the server device 1 via the communication network N.

The second terminal 3 is a PC or the like having the same configuration as the first terminal 2, and is operated by the second user. The second user includes, for example, a retail electric power company, a consumer, and other persons who receive (purchase) electric power.

Like the first terminal, the second terminal 3 includes a display unit 31 and an operation unit 32. The second terminal 3 receives the operation input from the second user by the operation unit 32, and transmits the information indicating the received operation input to the server device 1 via the communication network N.

(About the configuration of server device 1)
As shown in FIG. 1, the server device 1 includes a communication unit 11, a storage unit 12, and a control unit 13.

The communication unit 11 is composed of, for example, an electric circuit or the like, and communicates with the first terminal 2 and the second terminal 3 via the communication network N.

The storage unit 12 includes a ROM (Read Only Memory), a RAM (Random Access Memory), and an HD.
It is a storage medium composed of D (Hard Disk Drive), SSD (Solid State Drive), and the like. The storage unit 12 stores various programs executed by the control unit 13.

In addition, various databases (DBs) are configured in the storage unit 12. Specifically, the power sale condition DB and the transaction establishment DB are stored in the storage unit 12. The power selling condition DB stores information indicating conditions when the first user sells power to the second user. Information on the completed electric power transaction is stored in the transaction completion DB.

FIG. 2 is a conceptual diagram showing an example of the power selling condition DB according to the present embodiment. The power selling condition DB stores the power selling condition presented to the second user when the first user sells power. As shown in FIG. 2, the credit information, the power supply area, the power supply pattern, the power supply start date, the power supply end date, the contracted electric energy, the electric power charge, the payment due date, etc. are associated with each user ID indicating the identification information of the first user. ing. Although not shown, the power sale conditions may include other conditions including a period or deadline for accepting an application for power purchase.

The credit information is information indicating the creditworthiness of the first user in commercial transactions, and is determined according to, for example, the ability to pay the price of the first user (such as owned assets and collateral) and the creditworthiness of the first user's power supply. It is a thing. In FIG. 2, it is represented by three stages A to C. This credit information is set, for example, based on the survey results of a predetermined credit research company.

The power supply area indicates an area (inside the jurisdiction) to which the first user supplies power. The power supply pattern indicates a time zone in which the first user supplies power. The power supply start date and power supply end date indicate the start date and end date when the first user starts power supply, respectively. The contracted electric energy indicates the electric energy supplied by the first user to the second user when the transaction is completed. The electric power charge indicates the transaction price of electric power when the electric power transaction is completed. The payment due date indicates the payment due date when the electric power transaction is completed. The power supply period in the present embodiment includes conditions related to a period when the first user sells power to the second user, such as a power supply pattern, a power supply start date, and a power supply end date. For example, in FIG. 2, the power supply period under the power sale condition of the user ID U_002 may be "2020/2/1 to 2020/2/8" depending on the power supply start date and the power supply end date, and further includes the power supply pattern "2020 /". It may be "12:00 to 24:00 from 2/1 to 2020/2/8". Further, although not shown in this figure, the power supply period under the power sale condition may be specified only by the power supply pattern such as "12:00 to 24:00" regardless of the power supply start date and the power supply end date. In this case, the actual power supply period after the transaction is completed is from the power supply start date agreed between the second user who applied for the power purchase for the power sale condition indicated by the first user and the first user. It may be the period of power supply according to the specified power supply pattern until the end date.

FIG. 3 is a conceptual diagram showing an example of a transaction establishment DB according to the present embodiment. Information indicating the completed electric power transaction is stored in the transaction completion DB. Specifically, in the transaction establishment DB, the user IDs of the first user and the second user for which the electric power transaction has been established are stored in the first user ID and the second user ID, respectively. Then, in the transaction establishment DB, information on the established power transaction (power supply area, power supply pattern, power supply start date, power supply end date, contract electric energy, power charge, payment date, etc.) is stored in the user IDs of the first and second users. Information) is associated. As will be described later, the transaction establishment DB shown in FIG. 3 stores information on the power sale condition in which the power transaction is established among the power sale condition DB shown in FIG. 2, and the power sale condition shown in FIG. 2 is stored. In the condition DB, the power sale condition is deleted. Since FIGS. 2 and 3 of the present application show examples of the power selling condition DB and the transaction closing DB at the same time point, the information stored in the power selling condition DB shown in FIG. 2 and the transaction closing DB shown in FIG. 3 are used. It is not related to the stored information (that is, the transaction closing DB shown in FIG. 3 stores the information related to the power selling condition already deleted from the power selling condition DB shown in FIG. 2, which is shown in FIG. The new power selling condition is stored in the power selling condition DB shown in 2).

The control unit 13 is composed of, for example, a microcomputer including a CPU (Central Processing Unit), a semiconductor memory, and the like. The control unit 13 controls each unit of the server device 1 by executing a program or the like stored in the storage unit 12.

Further, the control unit 13 includes a first screen processing unit 131, a condition registration unit 132, a second screen processing unit 133, and a transaction establishment processing unit 134.

The first screen processing unit 131 controls the first screen displayed on the display unit 21 of the first terminal 2 in response to an operation from the first user to the operation unit 22 of the first terminal 2. Various items included in the power sale condition are displayed on the first screen, and input for each item from the first user is accepted. Here, the first screen accepts inputs for items such as a power supply area, a power supply pattern, a power supply start date, a power supply end date, a contracted electric energy, an electric power charge, and a payment due date.

The condition registration unit 132 performs a registration process in which the power sale condition received by the first screen processing unit 131 is stored in the power sale condition DB. Specifically, in the power selling condition DB, information on the power selling condition is associated with the user ID corresponding to the first user.

The second screen processing unit 133 controls the second screen displayed on the display unit 31 of the second terminal 3 in response to the operation of the second user to the operation unit 32 of the second terminal 3. On the second screen, a list of power selling conditions stored in the power selling condition DB is displayed. Here, on the second screen, the credit information, the power supply area, the power supply pattern, the power supply start date, the power supply end date, the contracted electric energy, and the power charge associated with each user ID as the power sale condition in the power sale condition DB are displayed. , Information such as payment due date is displayed. Then, the second screen processing unit 133 accepts the selection of the first user (or power selling condition) from the second user on the second screen. The second screen processing unit 133 does not have to display information (for example, a company name or an individual name) that identifies the first user on the second screen.

The transaction closing processing unit 134 performs a transaction closing process that concludes a power transaction between the first user and the second user based on the selection received by the second screen processing unit 133. Specifically, the transaction establishment processing unit 134 deletes the power sale condition for which the electric power transaction has been established from the power sale condition DB, and stores the information regarding the electric power transaction for which the electric power transaction has been established in the transaction establishment DB. Then, when the electric power transaction is established, the transaction establishment processing unit 134 notifies the first user and the second user that the electric power transaction has been established.

(About the operation of the electricity trading system)
4 and 5 are flowcharts showing the operation of the electric power trading system according to the present embodiment. Specifically, FIG. 4 shows a series of flow of registration processing, and FIG. 5 shows a series of flow of transaction closing process.

First, the registration process will be described with reference to FIG.

When the first user performs a start operation for setting the power selling condition on the operation unit 22 of the first terminal 2, the first terminal 2 displays the first screen on the server device 1 on the display unit 21. Request the first screen data necessary for displaying in (step S11).

When the first screen processing unit 131 of the server device 1 receives the request for the first screen data (step S12), the first screen processing unit 131 transmits the first screen data to the first terminal 2 (step S13).

When the first terminal 2 receives the first screen data (step S14), the first terminal 2 displays the first screen on the display unit 21 (step S15). On this first screen, various items under the power selling conditions (for example, power supply area, power supply pattern, power supply start date, power supply end date, contracted electric energy, electric power charge, payment due date, etc.) are displayed. Then, the first terminal 2 receives an input for each item from the first user on the first screen.

When the first terminal 2 receives an input for each item from the first user on the first screen (step S16), the first terminal 2 generates first data indicating the input result (step S17). Then, the first terminal 2 transmits the generated first data to the server device 1 (step S18).

When the first screen processing unit 131 of the server device 1 receives the first data (step S19), the condition registration unit 132 detects the information regarding the power selling condition included in the first data. Then, the condition registration unit 132 performs a registration process of storing the detected information on the power sale condition in the power sale condition DB (step S20). Specifically, the condition registration unit 132 associates the information related to the power selling condition with the user ID corresponding to the first user in the power selling condition DB.

Next, the transaction closing process will be described with reference to FIG.

When the second user performs a start operation for conducting a power transaction with the operation unit 32 of the second terminal 3, the second terminal 3 generates a second screen on the display unit 31 for the server device 1. Request the second screen data necessary for this (step S31).

When the second screen processing unit 133 of the server device 1 receives the request for the second screen data (step S32), the information regarding the power selling condition stored in the power selling condition DB from the storage unit 12 (for example, credit information, power supply). Information such as area, power supply pattern, power supply start date, power supply end date, contracted electric energy, electric power charge, payment due date, etc.) is read out (step S33). Then, the second screen processing unit 133 generates the second screen data including the list of power selling conditions (step S34), and transmits the generated second screen data to the second terminal 3 (step S35).

When the second terminal 3 receives the second screen data (step S36), the second terminal 3 displays the second screen on the display unit 31 (step S37). A list of power selling conditions is displayed on this second screen. Here, on the second screen, as information on the power selling conditions, for example, information such as credit information, power supply area, power supply pattern, power supply start date, power supply end date, contracted electric energy, electric power charge, and payment due date are displayed. To. Then, the second terminal 3 accepts the selection of the first user or the power selling condition from the second user on the second screen.

When the second terminal 3 receives the selection of the first user to purchase power or the power selling condition from the second user on the second screen (step S38), the second terminal 3 generates the second data indicating the selection result (step S39). .. Then, the second terminal 3 transmits the generated second data to the server device 1 (step S40).

When the second screen processing unit 133 of the server device 1 receives the second data (step S41), the transaction closing processing unit 134 performs the transaction closing process of closing the power transaction between the first user and the second user (step S41). S42). Specifically, the transaction closing processing unit 134 detects the power selling condition selected by the second user included in the second data, deletes the detected power selling condition from the power selling condition DB, and deletes the detected power selling condition from the power selling condition DB, and the transaction closing DB. Stores information about power transactions that have been completed in. Then, the transaction completion processing unit 134 notifies the first user and the second user that the electric power transaction has been completed. Here, the transaction establishment processing unit 134 further outputs data indicating the consent of the first user from the first terminal 2 to the first screen processing unit 131 after the second screen processing unit 133 of the server device 1 receives the second data. When the user receives the data, the transaction establishment process for establishing the electric power transaction between the first user and the second user may be performed. Further, the server device 1 may store the second user-related information including the credit information of the second user in the storage unit 12 before the transaction closing process, and the second user-related information includes the second user's credit information. The credit risk information of the second user based on the credit information may be included. Further, when the second screen processing unit 133 receives the second data, the server device 1 transmits the second user-related information regarding the second data to the first terminal 2, and the first terminal 2 receives the second user. Data indicating the consent of the first user based on the related information may be transmitted to the first screen processing unit 131 of the server device 1. As a result, the first user can determine whether or not to conclude the transaction in consideration of the credit risk of the second user.

As described above, the electric power trading system according to the present embodiment is an electric power trading system that mediates electric power transactions between a first user who sells electric power and a second user who buys electric power. The power trading system according to the present embodiment has a first terminal 2 that accepts input of a power selling condition, which is a power selling condition presented to a second user, from a first user, and a first terminal from the first terminal 2. The server device 1 having a storage unit 12 that receives the first data (power selling condition information) indicating the power selling condition received by 2 and stores the received first data, and the second screen data (selling) from the server device 1. It is provided with a second terminal 3 that receives (electrical condition information), displays the received second screen data on the display unit 31, and accepts the selection of the first user or the electric power selling condition from the second user. The power sale condition includes information on the power charge (power transaction price), power supply pattern, power supply start date and power supply end date (power supply period) when the power transaction is completed.

According to this configuration, the first terminal 2 receives the power selling condition presented to the second user from the first user. The server device 1 stores the power selling conditions received by the first terminal 2 in the storage unit 12. The second terminal 3 displays the power selling condition stored in the storage unit 12 on the display unit, and accepts the selection of the first user or the power selling condition from the second user. As a result, an electric power transaction between the first user and the second user can be established.

Further, the power selling condition accepted by the first terminal 2 includes information on the transaction price of the power and the power supply period when the power transaction is completed. As a result, the first user can present the electric power transaction to the second user by setting the electric power transaction price and the power supply period, so that the first user and the second user can predict the electric power transaction price. It becomes easier to set up.

Therefore, electricity trading can be performed stably.

In addition, the power supply period includes a power supply pattern, a power supply start date, and a power supply end date (hourly or daily period). In Japan, in addition to the electric power spot market, there is a forward market provided by the Japan Electric Power Exchange as a place for electric power trading. In the forward market, electricity can be traded on a weekly or monthly basis, but it is not possible to trade on an hourly or daily basis. On the other hand, in the present embodiment, the first terminal 2 receives input from the first user as a power supply period for a time unit or a day unit such as a power supply pattern, a power supply start date, and a power supply end date. .. As a result, the first user can set the power supply period in units of days or hours, so that the power supply period can be set flexibly.

Further, the storage unit 12 stores credit information indicating the creditworthiness of the first user, which is determined according to the solvency of the first user. The server device 1 transmits (distributes) credit information to the second terminal 3.

According to this configuration, since the credit information indicating the creditworthiness of the first user is distributed from the server device 1 to the second terminal 3, the second user can carry out the electric power transaction while referring to the credit information. Thereby, the second user can determine whether or not the electric power can be stably supplied from the first user when the electric power transaction is concluded.

(Other embodiments)
As described above, embodiments have been described as an example of the techniques disclosed in this application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. are made as appropriate.

In the above embodiment, the first user is a business operator that supplies power (sells power), and the second user is a business operator that receives power supply (purchases power), but the first user and the second user May be reversed. That is, the first user may be the business operator who purchases power, and the second user may be the business operator who sells power. In this case, the storage unit 12 is configured with a power purchase condition DB instead of the power sale condition DB. The power purchase condition DB stores the power purchase condition presented to the second user when the first user purchases power. That is, in the power trading system, the first user operates the first terminal 2 to input the power purchase condition, and the storage unit 12 of the server device 1 stores the input power purchase condition DB. It may be managed and the second user may operate the second terminal 3 to conclude a power transaction with the first user. As a result, even when the conditions of the electric power transaction are presented from the user who purchases the electric power to the user who sells the electric power, the electric power transaction can be stably performed.

In addition, the server device 1 has a function of predicting fluctuations in the transaction price of electric power in the electric power trading market such as the electric power spot market, the forward market, and the same-day market where the electric power is traded on the day provided by the Japan Electric Power Exchange (JEPX). , The prediction result may be delivered to at least one of the first terminal 2 and the second terminal 3. This function includes, for example, weather, temperature, power plant shutdown information, power reserve reserve, interconnection free capacity, forward curve (including those related to electricity, coal, crude oil and LNG), coal import prices, crude oil imports. It can be realized by a learning model generated based on information such as prices, LNG import prices, and past fluctuations in electric power transaction prices in the electric power spot market, and statistical methods based on such information. With this configuration, the second user can carry out the electric power transaction while comparing the predicted result of the electric power transaction price in the electric power trading market with the electric power selling condition.

Further, the server device 1 may have a function of calculating the greenhouse gas emission amount of the power generation facility based on the greenhouse gas emission coefficient of the power generation facility that supplies power and the activity amount of the power generation facility. good. In this case, the server device 1 distributes the calculation result to the second terminal 3. For example, in step S16, the first screen receives input of the emission coefficient of the greenhouse gas (for example, carbon dioxide, methane, etc.) of the power generation facility and the activity amount of the power generation facility. The amount of activity of this power generation facility is the amount of fuel used or incinerated when operating the power generation facility. The server device 1 multiplies the greenhouse gas emission coefficient of the power generation facility input on the first screen by the activity amount of the power generation facility, so that the greenhouse gas emitted by the power generation facility generates power. Calculate the amount of emissions. For example, when a coal-fired power plant uses "general coal" (fuel type) to generate power, the emission coefficient of the greenhouse gas of the coal-fired power plant is 25.7 GJ / t, which is the calorific value of the steamed coal. It is 0.63478tC / t multiplied by the emission coefficient 0.0247tC / GJ for use. The server device 1 calculates the amount of greenhouse gas emissions by multiplying this emission count by the amount of activity (fuel consumption) and a predetermined coefficient (coefficient set according to the type of greenhouse gas). .. As a result, the second user can carry out the electric power transaction in consideration of the greenhouse gas emission amount of the power generation facility.

Further, the server device 1 may include a function of calculating the total amount of greenhouse gas emissions of the second user, and may distribute the calculation result to the second user. For example, the server device 1 adds the total greenhouse gas emissions of the power generation facility owned by the second user and the total greenhouse gas emissions of the power generation facility for which the power transaction has been established according to the present embodiment. Calculates the total greenhouse gas emissions of the second user. As a result, the second user can know the total amount of greenhouse gas emissions of the second user, and thus can carry out electricity trading in consideration of the greenhouse gas reduction target.

Further, the server device 1 may have a function of managing the type of the power generation equipment in addition to the function of calculating the amount of greenhouse gas emissions of the power generation equipment. In this case, the server device 1 distributes information indicating the type of power generation equipment to the second terminal 3. For example, in step S16, the first screen receives input of the type of power generation equipment (thermal power, hydraulic power, nuclear power, solar power, wind power, geothermal power, biomass, etc.). Here, at present, there is an initiative called RE100 (RenewableEnergy100%), which aims to cover the power consumption of its own business with 100% renewable energy. In this effort, "renewable energy" is defined as "hydropower, solar power, wind power, geothermal power, biomass". That is, when the server device 1 distributes the information indicating the type of the power generation facility to the second terminal 3, the second user can use the greenhouse gas together with the power source information such as the location of the power generation facility as the basic information of the first user. Since it is possible to specify that electricity is supplied from a type of power generation facility that can reduce or reduce the emission of electricity, it is necessary to specify the power generation facility in order to control the emission of greenhouse gas such as RE100 when procuring electricity. Can meet the criteria.

Further, the server device 1 may have a function of distributing information on accounting processing to the first terminal or the second terminal when the electric power transaction is completed.

The accounting information is, for example, information about hedge accounting. Electricity trading is a futures contract because it is a transaction that promises to supply and settle the electricity in the future receiving period. In particular, in this electric power trading system, since the first user can freely set the power supply period, profit or loss may not be fixed at the end of the fiscal year. In this case, an accounting treatment called hedge accounting, in which the accounting treatment is deferred until the profit or loss is fixed, must be performed. The server device 1 distributes information related to this hedge accounting process (specific accounting procedure, etc.) to the first terminal 2 and the second terminal 3. As a result, the first user and the second user can perform appropriate accounting treatment.

Further, the information regarding the accounting treatment may be information regarding the accounting treatment of the environmental value. If the first user sells renewable energy and meets various conditions, the second user can obtain environmental values such as "green power certificate", "J-credit", and "non-fossil certificate". This environmental value is the object of commercial transactions and has monetary value. Therefore, the second user needs to record the environmental value when performing accounting treatment. The server device 1 may distribute the information regarding the accounting treatment of the environmental value (specific accounting procedure, etc.) to the first terminal 2 and the second terminal 3.

Further, in the above embodiment, the case where the first user and the second user perform a one-to-one electric power transaction is given as an example, but one first user and a plurality of second users can perform an electric power transaction. Alternatively, a plurality of first users and one second user may carry out electric power transactions, or a plurality of first users and a plurality of second users may carry out electric power transactions.

Specifically, when one first user and a plurality of second users carry out electric power transactions, for example, the contracted electric energy of the electric power selling conditions (or electric power purchasing conditions) presented by the one first user. If is 10,000 kWh, one of the second users applies at 3,000 kWh, and the other one of the second users applies at 7,000 kWh, so that the two second users can apply. The contracted electric energy of the power selling condition (or power purchasing condition) by the first user may be jointly satisfied. Here, in this modification, the power selling condition or the power purchasing condition may further include a contract period. In this case, for example, even if some second users select a part of the conditions for the power sale condition (or power purchase condition) with a certain contract period by one first user, the contract If all of the power selling conditions (or power purchasing conditions) are not met by the other second user by the deadline, the application by the second user who has made some of the selections may be invalidated after the contract deadline has passed. ..

Further, when a plurality of first users and one second user conduct electric power transactions, for example, the plurality of first users jointly present one power selling condition (or power purchasing condition) and one person. A second user may conclude a power transaction by applying for the power sale condition. In this case, the power selling condition or the power purchasing condition may further include a contract period.

Further, when a plurality of first users and a plurality of second users perform electric power transactions, for example, the plurality of first users jointly present a power selling condition (or a power purchasing condition), and the presented power selling conditions are met. If the contracted electric energy is 10,000 kWh, one of the second users applies at 3,000 kWh, and the other one of the second users applies at 7,000 kWh, so that the second user can apply. The two persons may jointly satisfy the contracted electric energy of the power selling condition (or power purchasing condition) by the first user. In this case, for example, even if some second users select a part of the conditions for the power sale condition (or power purchase condition) with a certain contract period by a plurality of first users, the contract period If all of the power selling conditions (or power purchasing conditions) are not satisfied by the other second user by then, the application by the second user who has made some of the selections may be invalidated after the contract expiration date. ..

Further, the server device 1 manages information on the power sale condition (or power purchase condition) and the transaction establishment by the power sale condition DB (or the power purchase condition DB) and the transaction establishment DB, but the present invention is not limited to this. For example, using a distributed ledger technique such as a blockchain, information on power selling conditions (or power purchasing conditions) and transaction establishment may be managed by a plurality of storage devices. In this case, the plurality of storage devices may be included in each of the server device 1, the first terminal 2, the second terminal 3, and other terminal devices. For example, when one terminal generates a transaction according to a smart contract and another terminal makes an agreement according to a consensus algorithm, the transaction is recorded in a blockchain (distributed ledger). As a result, it is possible to prevent falsification of information and ensure traceability of information.

Further, the server device 1 has a power selling condition (or a power selling condition DB) stored in the power selling condition DB (or a power purchasing condition DB).
Alternatively, it may have a function of changing the power purchase condition) according to the information received from the first terminal 2. That is, the first user may be able to change the power selling conditions input to the first terminal 2 after the fact. In this case, some of the information included in the power sale conditions (for example, power charge, power supply period, etc.) may not be changed. Further, the second user may operate the second terminal 3 so that the first user can wish to change the information that can be changed in the power selling conditions. As a result, the second user can negotiate with the first user, which makes it easier to conclude a power transaction.

The electric power trading system according to the present embodiment may be linked with a credit card payment system, an account transfer system, or the like. In this case, for example, the communication terminal (mobile phone, PC, etc.) of the consumer (the person who receives the power supply from the retail electric power company) accepts the payment information such as the consumer's credit card number and account number, and credits. Payment information may be registered in a card payment system or an account transfer system. As a result, the power trading system can manage the payment information of the user.

Further, the server device 1 of the power trading system according to the present embodiment may be provided with a function capable of detecting information on the credit card from an image obtained by taking a credit card. For example, the server device 1 is configured to be able to communicate with a user's communication terminal (mobile phone, PC, etc.) and a credit card payment system. The server device 1 receives an image of the user's credit card from the user's communication terminal, and from the received image, for example, by using a character reading technique such as OCR (Optical character recognition), the user's credit card number or the like can be obtained. The information may be read and notified to the credit card payment system. This saves the trouble of inputting payment information.

Further, the electric power trading system according to the present embodiment may be linked with a customer management system that manages various information used for billing the user's electric power charge such as the user's name, address, telephone number and electric power usage. good. Thereby, for example, the user can be billed for the electricity charge according to the amount of electric power used.

Further, the server device 1 may be a plurality of devices or one server device 1. One server device may be provided for each function of the server device 1. Further, each function of the server device 1 may be jointly realized by a plurality of devices.

The electric power trading system according to the present embodiment conducts electric power trading based on the input of the electric power selling condition, which is the electric power selling condition received by the first terminal from the first user, and the selection received by the second terminal from the second user. In order to establish it, it is possible to mediate the electric power transaction between the first user and the second user.

1 Server device 12 Storage unit 13 Control unit 131 1st screen processing unit 132 Condition registration unit 133 2nd screen processing unit 134 Transaction closing processing unit 2 1st terminal 3 2nd terminal

Claims (11)

An electric power trading system that mediates electric power transactions between a first user who sells electric power and a second user who buys electric power.
A first terminal that accepts input from the first user of the power selling condition, which is the power selling condition presented to the second user,
A server device that receives power selling condition information indicating the power selling condition received by the first terminal from the first terminal and stores the received power selling condition information in a storage unit.
With a second terminal that receives the power selling condition information from the server device, displays the received power selling condition information on the display unit, and accepts the selection of the first user or the power selling condition from the second user. With
The power trading system includes information on the power transaction price and the power supply period when the power transaction is completed. In the electric power trading system according to claim 1,
A power trading system, wherein the power supply period includes an hourly or daily period. In the electric power trading system according to claim 1 or 2.
Credit information indicating the creditworthiness of the second user in a commercial transaction is stored in the storage unit.
The server device is a power trading system that distributes the credit information to the first terminal. In the electric power trading system according to any one of claims 1 to 3,
The server device is an electric power trading system that predicts the transaction price of the electric power in the electric power trading market and delivers the prediction result to the second terminal. In the electric power trading system according to any one of claims 1 to 4.
The power sale condition includes the greenhouse gas emission coefficient of the power generation facility that supplies power to the second user when the power transaction is completed, and the amount of activity by the power generation facility.
The server device is an electric power trading system that calculates the amount of greenhouse gas emissions of the power generation facility based on the emission factor and the activity amount, and distributes the calculation result to the second terminal. In the electric power trading system according to claim 5,
The power selling conditions include the type of power generation equipment.
The server device is a power trading system that distributes the type of power generation equipment to the second terminal. In the electric power trading system according to any one of claims 1 to 6.
The server device is an electric power trading system that distributes information on accounting processing to the first terminal or the second terminal when the electric power transaction is completed. In the electric power trading system according to any one of claims 1 to 7.
The first user includes one or more first users.
The second user is a power trading system including one or more second users. In the electric power trading system according to any one of claims 1 to 8.
The storage unit is a power trading system which is one of a plurality of storage devices constituting a distributed ledger. An electric power trading system that mediates electric power transactions between a first user who buys electric power and a second user who sells electric power.
The first terminal that accepts the power purchase condition, which is the power purchase condition presented to the second user from the first user, and
A server device that receives power purchase condition information indicating the power purchase condition received by the first terminal from the first terminal and stores the received power purchase condition information in a storage unit.
With a second terminal that receives the power purchase condition information from the server device, displays the received power purchase condition information on the display unit, and accepts the selection of the first user or the power purchase condition from the second user. ,
With
The electric power trading system includes information on the electric power transaction price and the power supply period when the electric power transaction is completed. It is an electric power transaction method that mediates an electric power transaction between a first user who sells electricity and a second user who buys electric power.
A step in which the first terminal receives an input of a power selling condition, which is a power selling condition, presented to the second user from the first user, and
A step in which the server device receives from the first terminal the power selling condition information indicating the power selling condition received by the first terminal, and stores the received power selling condition information in the storage unit.
The second terminal receives the power selling condition information from the server device, displays the received power selling condition information on the display unit, and selects the first user or the power selling condition from the second user. With steps to accept
A power trading method, wherein the power selling condition includes information on a power transaction price and a power supply period when the power transaction is completed.

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