JP2024044420A - Electricity trading intermediary system - Google Patents

Abstract

[Problem] To provide a technology capable of promoting eco-friendly power supply in an electricity buying and selling intermediation system. [Solution] The computer of the electricity buying and selling intermediation system disclosed in this specification is capable of executing the following processes: extracting a plurality of users who wish to sell electricity and who satisfy the power purchase conditions of a user who wishes to buy electricity, and who have power selling conditions that are satisfied by the user who wishes to buy electricity; calculating an eco-index of the power supply by the user who wishes to sell electricity for each of the extracted plurality of users who wish to sell electricity, based on the amount of greenhouse gas emissions emitted by the mobile body when moving to a power supply point and supplying electricity at the power supply point, and the renewable energy ratio in the amount of electricity charged to the mobile body; and determining the power selling price to be offered to the plurality of users who wish to sell electricity, based on a uniform power purchase price to be offered to the users who wish to buy electricity and the calculated eco-index. The power selling price determined for each user who wishes to sell electricity is set with a price difference according to the deviation value of the eco-index. [Selected Figure] FIG. 2

Description

The technology disclosed in this specification relates to an electricity trading intermediation system.

Patent Document 1 discloses an electricity trading intermediation system that mediates electricity trading between a user who wishes to sell electricity and owns a mobile body and a user who wishes to buy electricity at the power supply point on a power supply platform where a rechargeable mobile body moves to a power supply point and supplies electricity from the mobile body to the power supply point.

Republished Publication No. 2011-077780

In the power buying and selling intermediary system, there are cases where it is desired to promote eco-friendly power supply from the perspective of environmental conservation. Eco-friendly power supply here means, for example, power supply with low greenhouse gas emissions (such as CO ₂ emissions) or power supply with a high ratio of renewable energy-derived power to the amount of power supplied. This specification provides a technology that can promote eco-friendly power supply in a power trading intermediary system.

The power buying and selling intermediary system disclosed in this specification is provided in a power feeding platform where a chargeable mobile object moves to a power feeding point and supplies power from the mobile object to the power feeding point. Mediates power buying and selling between a user and a power purchasing user who desires to purchase power at the power feeding point. The power trading intermediary system includes at least one computer. A process for extracting a plurality of users desiring to sell electricity who satisfy the electricity purchase conditions of the users desiring to buy electricity, and who have the conditions for selling electricity that satisfy the users desiring to buy electricity; For each of the plurality of users who wish to sell electricity, the greenhouse gas emissions emitted by the mobile body due to movement to the power supply point and power supply at the power supply point, and the renewable energy ratio in the amount of electricity charged in the mobile body. a process of calculating an eco-indicator for electricity supply by the user who wishes to sell electricity based on the above, and a process of calculating an eco-indicator of electricity supply by the user who wishes to sell electricity; , and a process of determining each user who desires to sell electricity based on the calculated eco-index. A price difference corresponding to the deviation value of the eco-index is provided in the power selling price determined for each user who desires to sell power. Note that the power buying and selling intermediary system is a system that uses machine learning. For example, the at least one computer learns big data related to the travel route to the power supply point, big data related to the fuel efficiency of the mobile object, etc. The system is configured to determine the amount of greenhouse gas emissions emitted by a mobile object.

One method for promoting eco-friendly power supply is to offer a higher power selling price to users who wish to sell power with better eco-indicators. If a price difference were set for the power purchase price when purchasing power from users who wish to sell power in accordance with the power selling price for each user who wishes to sell power, the power purchase price when purchasing power from users who wish to sell power with better eco-indicators would be higher than the power purchase price when purchasing power from users who wish to sell power with poorer eco-indicators. In this case, users who wish to purchase power would be reluctant to purchase power from users who wish to sell power with better eco-indicators, which could result in eco-friendly power supply not being carried out.

In contrast, with the above configuration, the power purchase price presented to users wishing to purchase power is determined to be a uniform price, and the power selling price presented to users wishing to purchase power with better eco-indicators can be higher. From the perspective of users wishing to purchase power, there is no difference in the power purchase price regardless of which user wishing to sell power they purchase power from, making it easier for them to purchase power from users wishing to sell power with better eco-indicators. Furthermore, users wishing to sell power will strive to improve their eco-indicators in order to increase the power selling price. Therefore, with the above configuration, it is possible to promote eco-friendly power supply.

1 is a diagram schematically showing the configuration of a power buying and selling intermediary system 2 according to an embodiment. 1 is a diagram illustrating a relationship between a uniform power purchase price X, an eco-index Ei, and a power selling price Vi in an electric power trading intermediation system 2 according to an embodiment. FIG.

As shown in FIG. 1, in the power buying and selling intermediary system 2 of this embodiment, a vehicle 102 equipped with a rechargeable secondary battery 106 moves to a power supply point 104, and power is supplied from the vehicle 102 to the power supply point 104. The power supply platform 100 mediates power purchase and sale between a user A who owns an automobile 102 and who wishes to sell power, and a user B who desires to purchase power who wishes to purchase power at a power supply point 104. Vehicles 102 include not only vehicles equipped with only an internal combustion engine as a prime mover, but also other vehicles (eg, EVs, HVs, PHVs, and FCVs). The power feeding point 104 is, for example, a so-called off-grid area that is not connected to the power transmission grid of a power company.

A power selling application provided by a business providing the power buying and selling intermediary system 2 is installed on the terminal device 4 (eg, smartphone, tablet, PC) owned by the user A who wishes to sell power. In the power selling application, it is possible to input information related to user A who wishes to sell power (in this embodiment, power selling conditions). The power selling conditions include the amount of power that the user A who wants to sell electricity can supply, the travel time allowed by the user A who wants to sell electricity, and the upper limit amount of greenhouse gas emissions that the user A who wants to sell electricity allows. In addition, in the power selling application, vehicle information recorded in the ECU of the vehicle 102 is acquired through communication between the terminal device 4 and the ECU (Electronic Control Unit) of the vehicle 102 . The vehicle information includes the fuel efficiency of the vehicle 102, the fuel consumption rate during power supply to the vehicle 102, and the charging history of the secondary battery 106. The charging history referred to here is, for example, what kind of power generation method was used to generate the electric power and how much electric power was charged.

A power purchase application provided by the above-mentioned business operator is installed on the terminal device 6 (for example, a smartphone, a tablet, or a PC) owned by the user B who wishes to purchase power. In the power purchase application, information related to user B who wishes to purchase power (in this embodiment, power purchase conditions) can be input. The electricity purchase conditions are the amount of electricity desired by user B who wants to purchase electricity, the travel time of user A who wants to sell electricity that user B who wants to buy electricity allows, and the upper limit of greenhouse gas emissions that user B who wants to buy electricity allows. including.

The electricity trading intermediation system 2 includes a management server 8 for an electricity selling app and an electricity buying app. The management server 8 includes at least one computer 10. The at least one computer 10 is capable of bidirectional communication with each of the terminal devices 4, 6. As a result, the at least one computer 10 aggregates information relating to the aforementioned user A wishing to sell electricity and information relating to the aforementioned user B wishing to buy electricity. The following describes various processes that can be executed by the at least one computer 10.

(Process of extracting users Ai who wish to sell electricity)
At least one computer 10 extracts a plurality of electricity selling users A who are candidates for electricity purchase destinations for a specific electricity purchasing user B. Specifically, at least one computer 10 extracts a plurality of electricity selling users A who have electricity selling conditions that are satisfied for the electricity purchasing user B from among the electricity selling users A who satisfy the electricity purchasing conditions of the electricity purchasing user B. Both the electricity selling conditions and the electricity purchasing conditions are satisfied between each of the plurality of electricity selling users Ai extracted in this manner and the electricity purchasing user B.

FIG. 2 shows an example in which six users Ai (i=1 to 6) who wish to sell electricity are extracted.

(Process for calculating eco-index Ei)
At least one computer 10 specifies, for each of the plurality of extracted users Ai who wish to sell electricity, the amount of greenhouse gas emissions emitted by the vehicle 102 due to movement to the power supply point 104 and power supply at the power supply point 104. At least one computer 10 determines the amount of greenhouse gas emissions emitted by the vehicle 102 by traveling to the power supply point 104, based on the fuel efficiency of the vehicle 102 and the travel route from the current location of the vehicle 102 to the power supply point 104, for example. . The at least one computer 10 also determines the amount of greenhouse gas emissions emitted by the vehicle 102 due to power supply at the power supply point 104 based on the amount of power required at the power supply point 104 and the fuel consumption rate of the vehicle 102 during power supply. Identify.

The at least one computer 10 also identifies the renewable energy ratio in the amount of electricity charged to the secondary battery 106 of the automobile 102 for each of the extracted multiple users Ai who wish to sell electricity. In this embodiment, the at least one computer 10 has a predetermined data table in which a renewable energy ratio is linked to each power generation method. In the data table, a relatively high renewable energy ratio is linked to power generation methods such as solar power generation and hydroelectric power generation. The at least one computer 10 identifies the renewable energy ratio based on the charging history of the secondary battery 106 and the data table.

At least one computer 10 calculates an eco-index Ei for each of the extracted multiple electricity seller users Ai based on the identified greenhouse gas emissions and renewable energy ratio. In this specification, the explanation of the calculation method of the eco-index Ei is omitted.

The eco-index Ei shown in FIG. 2 is represented by any numerical value from 0 to 100. The eco-index Ei indicates a higher value as the user has a smaller amount of greenhouse gas emissions and a higher percentage of renewable energy. On the other hand, the eco-index Ei indicates a lower value as the user has a larger amount of greenhouse gas emissions and a lower percentage of renewable energy.

(Process for determining electricity selling price Vi)
At least one computer 10 determines a uniform power purchase price X to be presented to user B who wishes to purchase power (in the example of FIG. 2, X=1000 [yen/kwh]). In this specification, a description of the method for determining the electricity purchase price X will be omitted. After that, at least one computer 10 determines the electricity sales price Vi for each of the plurality of users Ai who wish to sell electricity, as shown in equation (1) below.
・Vi=X+{C・(Ei-Eave)}/σ (1)
Here, Eave is the average value of the eco-index Ei. σ is a standard deviation calculated from the eco-index Ei and its average value Eave. C is an arbitrary constant.

Equation (1) is set according to Equation (2) for determining the deviation value Ti of the eco-index Ei. From equations (1) and (2), the electricity selling price Vi can be expressed as shown in equation (3).
・Ti=50+{10・(Ei-Eave)}/σ (2)
・Vi=X+(C/10)・(Ti-50) (3)

As can be seen from equation (3), the electricity selling price Vi is provided with a price difference according to the deviation value Ti of the eco-index Ei.

(Modified example)
In the above embodiment, the uniform power purchase price X may be increased or decreased depending on various factors. For example, the uniform power purchase price X may be increased or decreased depending on the number of registrants of the power selling application (or the power purchasing application).

In the above embodiment, the electricity selling app and the electricity buying app may be separate applications or may be the same application.

In the above embodiment, a configuration has been described in which at least one computer 10 identifies greenhouse gas emissions (called explicit greenhouse gas emissions) that are primarily associated with fuel combustion. In another embodiment, at least one computer 10 may identify not only explicit greenhouse gas emissions, but also greenhouse gas emissions equivalent to the amount of electricity consumed (called potential greenhouse gas emissions). For example, at least one computer 10 may identify the amount of electricity consumed by traveling to the power supply point 104 from the electricity cost of the automobile 102 (an EV in this example). Then, at least one computer 10 may identify the estimated greenhouse gas emissions associated with the generation of that amount of electricity as the amount of greenhouse gas emissions emitted by traveling to the power supply point 104.

2: Electricity trading intermediation system, 4, 6: Terminal device, 8: Management server, 10: At least one computer, 100: Power supply platform, 102: Vehicle, 104: Power supply point, 106: Secondary battery

Claims (1)

A chargeable mobile object moves to a power feeding point, and at a power feeding platform that supplies power from the mobile object to the power feeding point, a user who owns the mobile object and wishes to sell power and wishes to purchase power at the power feeding point. A power buying and selling intermediary system that mediates power buying and selling between users who wish to purchase electricity,
comprising at least one computer, the at least one computer comprising:
a process of extracting a plurality of users who wish to sell electricity who satisfy the electricity purchase conditions of the user who wants to buy electricity, and who have the electricity selling conditions that are satisfied for the user who wants to buy electricity;
For each of the extracted users who wish to sell electricity, the amount of greenhouse gas emissions emitted by the mobile body due to movement to the power supply point and power supply at the power supply point, and the regeneration in the amount of electric power charged to the mobile body. a process of calculating an eco-index for power supply by the user who desires to sell power based on the available energy ratio;
A process of determining a power selling price to be presented to the plurality of users who wish to sell electricity for each user who wants to sell electricity, based on a uniform electricity purchase price to be presented to the users who want to buy electricity, and the calculated eco-index. and,
is executable,
The electricity selling price determined for each user who wishes to sell electricity is provided with a price difference according to the deviation value of the eco-index.
Electricity trading intermediary system.

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