Information processing system, information processing method, and program

Abstract

To provide an information processing system, an information processing method, and a program that are more beneficial to users with high environmental consciousness.SOLUTION: In an information processing system in which a server 2, a user terminal 3, and a database DB1 are configured to be able to communicate with each other via telecommunication lines, the server includes a control unit. The control unit executes a program to perform the following steps. In a reception step, input of location information is received from a user. In a first display control step, first information corresponding to each of a plurality of charging stations identified according to the location information is displayed so as to be comparable for each charging station. The first information includes information regarding a renewable energy ratio of charging energy that can be charged at each of the plurality of charging stations.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an information processing system, an information processing method, and a program. [Background technology]

[0002] Patent Document 1 describes presenting charging stations that meet the requirements of users of mobile bodies that use contactless power supply systems. An information provision system according to an embodiment of Patent Document 1 provides information related to contactless power supply systems that include a power receiving device mounted on the mobile body and one or more power transmitting devices installed in one or more charging stations, and includes: a station storage unit that stores station information indicating the correspondence between location information of the charging stations and the power transmitting devices of the charging stations; a history storage unit that stores a usage history indicating one or more power transmitting devices that the power receiving device has used in the past; a search unit that extracts location information of charging stations in which power transmitting devices that can supply power to the power receiving device are installed; and an output unit that outputs the location information of the charging stations extracted by the search unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-102668 Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is still room for improvement in the technology for presenting energy information about charging stations. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided an information processing system. The information processing system includes at least one processor configured to execute a program to perform the following steps: In a receiving step, input of location information is received from a user; In a first display control step, first information corresponding to each of a plurality of charging stations identified according to the location information is displayed so as to be comparable for each charging station, and the first information includes information regarding the renewable energy ratio of charging energy that can be charged at each of the plurality of charging stations.

[0006] According to one aspect of the present invention, it is possible to provide an information processing system or the like that is more useful to environmentally conscious users. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a configuration diagram illustrating an information processing system 1. FIG. [Figure 2] FIG. 2 is a block diagram showing the hardware configuration of the server 2. [Figure 3] FIG. 2 is a block diagram showing the hardware configuration of a user terminal 3. [Figure 4] FIG. 10 is a diagram showing an example of charging station information D1. [Figure 5] 2 is a flowchart showing an outline of processing executed by the information processing system 1. [Figure 6] 2 is an activity diagram showing an example of the flow of processing executed by the information processing system 1. FIG. [Figure 7] 10 is a diagram showing a reception screen 6, which is an example of a reception screen displayed on the display unit 34. FIG. [Figure 8] FIG. 10 is a diagram showing a search screen 7, which is an example of a search screen displayed on a display unit 34. [Figure 9] 10 is a diagram showing a search result screen 8 that shows an example of a search result screen displayed on the display unit 34. FIG. [Figure 10] 1A and 1B are diagrams showing cards 9A and 9B, which are examples of cards that display first information. [Figure 11] 10 is a diagram showing a screen 10 showing another example of the first information displayed on the display unit 34. FIG. [Figure 12] 10 is a diagram showing a screen 11 showing an example of second information displayed on the display unit 34. FIG. [Figure 13] 12 is a diagram showing a screen 12 showing an example of detailed information of the second information displayed on the display unit 34. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. Various features shown in the following embodiments can be combined with each other.

[0009] Incidentally, the program for realizing the software appearing in this embodiment may be provided as a non-transitory computer-readable medium, or may be provided so that it can be downloaded from an external server, or may be provided so that the program is started on an external computer and its functions are realized on a client terminal (so-called cloud computing).

[0010] In this embodiment, the term "unit" may also include, for example, a combination of hardware resources implemented by a circuit in the broad sense and software information processing that can be specifically realized by these hardware resources. In addition, various types of information are handled in this embodiment, and this information may be represented by, for example, physical values of signal values representing voltages and currents, high and low signal values as a binary bit set consisting of 0 or 1, or quantum superposition (so-called quantum bits), and communication and calculations may be performed on a circuit in the broad sense.

[0011] In addition, a circuit in the broad sense is a circuit realized by at least appropriately combining a circuit, circuitry, a processor, a memory, etc. That is, it includes an application specific integrated circuit (ASIC), a programmable logic device (e.g., a simple programmable logic device (SPLD), a complex programmable logic device (CPLD), and a field programmable gate array (FPGA)), etc.

[0012] 1. Hardware Configuration This section explains the hardware configuration.

[0013] <Information Processing System 1> FIG. 1 is a configuration diagram illustrating an information processing system 1. The information processing system 1 includes a server 2, a user terminal 3, and a database DB1. The server 2, the user terminal 3, and the database DB1 are configured to be able to communicate with each other via a telecommunications line. Here, the system exemplified as the information processing system 1 is composed of one or more devices or components. Therefore, it should be noted that the information processing system 1 includes either the server 2 alone or a combination of at least two of the server 2, the user terminal 3, and the database DB1. More specifically, the information processing system 1 may include elements selected from the group consisting of the server 2 and the user terminal 3. The elements not selected may not be included in the information processing system 1, but may be electrically connected to the selected elements as external elements. These components will be described below.

[0014] <Server 2> 2 is a block diagram showing the hardware configuration of server 2. Server 2 includes a communication unit 21, a storage unit 22, and a control unit 23, and these components are electrically connected via a communication bus 20 inside server 2. Each component will be further described below.

[0015] The communication unit 21 is preferably a wired communication means such as USB, IEEE1394, Thunderbolt (registered trademark), wired LAN network communication, etc., but may also include wireless LAN network communication, mobile communication such as 3G / LTE / 5G, BLUETOOTH (registered trademark) communication, etc. as needed. In other words, it is more preferable to implement it as a collection of multiple communication means. In other words, the server 2 may communicate various information from the outside via the communication unit 21 and the network.

[0016] The memory unit 22 stores various pieces of information defined above. This can be implemented, for example, as a storage device such as a solid state drive (SSD) that stores various programs and the like related to the server 2 executed by the control unit 23, or as a memory such as a random access memory (RAM) that stores temporarily required information (arguments, arrays, etc.) related to the program operations. The memory unit 22 stores various programs, variables, etc. related to the server 2 executed by the control unit 23.

[0017] The control unit 23 processes and controls the overall operations related to the server 2. The control unit 23 is, for example, a central processing unit (CPU) not shown. The control unit 23 realizes various functions related to the server 2 by reading out predetermined programs stored in the storage unit 22. In other words, information processing by software stored in the storage unit 22 is specifically realized by the control unit 23, which is an example of hardware, and each step related to each function described below can be executed. This will be described in further detail in the next section. Note that the control unit 23 is not limited to being single, and multiple control units 23 may be provided for each function. A combination of these may also be used.

[0018] <User terminal 3> 3 is a block diagram showing the hardware configuration of the user terminal 3. The user terminal 3 includes a communication unit 31, a storage unit 32, a control unit 33, a display unit 34, and an input unit 35, and these components are electrically connected via a communication bus 30 inside the user terminal 3. Each component will be further described below. The description of the communication unit 31, storage unit 32, and control unit 33 will be omitted as they are the same as the description of each unit in the server 2.

[0019] The display unit 34 may be included in the housing of the user terminal 3 or may be externally attached. The display unit 34 displays a graphical user interface (GUI) screen that can be operated by the user. This is preferably implemented by selectively using display devices such as a CRT display, a liquid crystal display, an organic EL display, or a plasma display depending on the type of user terminal 3.

[0020] The input unit 35 may be included in the housing of the user terminal 3, or may be externally attached. For example, the input unit 35 may be implemented as a touch panel integrated with the display unit 34. A touch panel allows the user to input tapping, swiping, and the like. Of course, a switch button, a mouse, a QWERTY keyboard, or the like may be used instead of a touch panel. That is, the input unit 35 accepts an operation input made by the user. The input is transferred as a command signal to the control unit 33 via the communication bus 30, and the control unit 33 can execute predetermined control or calculation as necessary.

[0021] The user terminal 3 may be a smartphone, tablet, personal computer, wearable device, or the like. The user terminal 3 may be mounted on a vehicle. The user terminal 3 stores an application program for the information processing system, and the application program includes a function for displaying information about charging stations and charged energy.

[0022] <Database DB1> Database DB1 stores various information. For example, database DB1 stores charging station information D1. Control unit 23 may store information acquired from each charging station in charging station information D1, or may store information acquired via a telecommunications line in charging station information D1. Control unit 23 may perform information processing using each piece of information stored in charging station information D1 as reference information.

[0023] 4 is a diagram showing an example of charging station information D1. Charging station information D1 includes data D11 to D16. Data D11 includes the name of the charging station. Data D12 to D16 are stored in association with data D11. Data D12 includes information related to the renewable energy ratio, data D13 includes information related to the carbon offset ratio, data D14 includes information related to the presence or absence of information verifying the renewable energy ratio, etc., data D15 includes information related to the ratio of renewable energy for each power source, and data D16 includes information related to the ratio of non-renewable energy for each power source.

[0024] The data D11 includes the name of the charging station as well as information about the charging station itself, such as the location information of the charging station, business hours, information about the charging equipment owned by the charging station, the price of rechargeable energy, and information about available charging cards.

[0025] Information on the renewable energy ratio is an indicator of the proportion of energy generated from renewable energy sources among the energy that can be charged at each charging station. The renewable energy ratio is calculated, for example, as the proportion of electricity generated from renewable energy to the total electricity generated by the power company that procures energy. This ratio varies depending on the type and amount of renewable energy used by the power company for power generation, and therefore also varies depending on the energy supplier and procurement plan of each charging station. The renewable energy ratio may also fluctuate depending on the weather and time.

[0026] Information about the carbon offset ratio is information about the carbon offset ratio of greenhouse gas emissions resulting from the charging energy of each charging station. The carbon offset ratio of the energy procured by each charging station from an electric power company refers to the percentage of emissions that are carbon offset through activities to reduce or offset greenhouse gas emissions associated with the electricity provided by the electric power company. In other words, the carbon offset ratio is calculated using the following formula: (carbon offset ratio) = (reduced greenhouse gas emissions) ÷ (total greenhouse gas emissions).

[0027] An example of information certifying the renewable energy ratio, etc., is an environmental value certificate. Examples of environmental value certificates include non-fossil fuel certificates, J-Credits, and green power certificates. A non-fossil fuel certificate is a document certifying that a power plant generates electricity from renewable energy sources rather than fossil fuels. A J-Credit is a carbon offset certificate used in Japan's emissions trading system and is issued when a company or organization reduces greenhouse gas emissions. A green power certificate certifies that electricity is generated from renewable energy sources and is issued when a power company introduces renewable energy and provides that electricity to consumers. Data D14 may include not only the presence or absence of information certifying the renewable energy ratio, etc., but also information regarding evidence certifying the renewable energy ratio, etc. The evidence certifying the renewable energy ratio, etc., may be the environmental value certificate itself or a link to information regarding the environmental value certificate.

[0028] Renewable energy sources are non-fossil energy sources that are recognized as being permanently available as energy sources. Renewable energy sources can include any non-fossil energy source, such as solar energy, wind energy, hydroelectric energy, geothermal energy, solar thermal energy, atmospheric heat energy, and biomass energy. Non-renewable energy sources are sources other than renewable energy. Non-renewable energy sources can include oil-based energy, natural gas-based energy, coal-based energy, and nuclear energy.

[0029] The charging station information D1 may include a greenhouse gas emission coefficient for the energy procured by each charging station. The greenhouse gas emission coefficient is a coefficient for evaluating the amount of greenhouse gases generated by a specific activity or process. By using the greenhouse gas emission coefficient, the control unit 23 can calculate the amount of greenhouse gas reduction. The greenhouse gas emission coefficient may be a coefficient for calculating the amount of greenhouse gas reduction converted into carbon dioxide.

[0030] 2. Functional configuration of Server 2 The control unit 23 is configured to execute, for example, the following steps: The following steps can be optionally omitted.

[0031] The control unit 23 is configured to be able to receive information from the user terminal 3 or another device as a receiving step. The control unit 23 is also configured to be able to receive various pieces of information by reading out various pieces of information stored in a storage area that is at least a part of the memory unit 22 and writing the read out information in a work area that is at least a part of the memory unit 22. The storage area is, for example, an area of the memory unit 22 that is implemented as a storage device such as an SSD. The work area is, for example, an area that is implemented as a memory such as a RAM. For example, the receiving step is a step of receiving input of location information from the user via the display unit 34. The receiving step may also be a step of receiving information regarding a charging time, which is the time during which charging is performed.

[0032] As a display control step, the control unit 23 controls the display unit 34 to display visual information such as a screen, an image including a still image or a video, an icon, a message, etc. The control unit 23 may generate only rendering information for displaying the visual information on the display unit 34. As a first display control step, the control unit 23 may display first information corresponding to each of a plurality of charging stations identified based on the location information in a comparable manner for each charging station. As the first display control step, the control unit 23 may preferentially display first information including specific information. As a second display control step, the control unit 23 may display second information based on a usage history. As a third display control step, the control unit 23 may display information based on a usage history.

[0033] The control unit 23 is configured to be able to receive information from the user terminal 3 or another device as a history receiving step. The control unit 23 is also configured to be able to receive various pieces of information by reading out various pieces of information stored in a storage area that is at least a part of the memory unit 22 and writing the read out information into a work area that is at least a part of the memory unit 22. The history receiving step is a step of receiving a usage history of the charging station from the user terminal 3.

[0034] The control unit 23 outputs various information in the output step. The information can be presented to the user via the display unit 34 or another device. In such a case, for example, the control unit 23 controls the display unit 34 to display visual information such as a screen, an image including a still image or a video, an icon, a message, etc. The control unit 23 may generate only rendering information for displaying the visual information on the user terminal 3. Note that the control unit 23 may present the output information to the user without going through the user terminal 3 or another device user. The output step is a step of outputting data on the amount of greenhouse gas reduction associated with charging by the user, calculated from the usage history.

[0035] The control unit 23 presents various information as a presentation step. The information is configured to be presentable to the user via the display unit 34 or another device. For example, the presentation step is a step of presenting a carbon offset plan to the user terminal 3.

[0036] In the granting step, the control unit 23 grants the benefit to the user account.

[0037] In the reservation step, the control unit 23 generates a reservation object that can accept a reservation for the charging station. The control unit 23 accepts a reservation for the charging station based on an operation instruction from the user terminal 3 to the reservation object.

[0038] 3. Information processing flow This section describes the flow of an information processing method executed by the information processing system 1. As shown below, the information processing method includes each step executed by the information processing system. The information processing program of this embodiment causes a computer to execute each step of the information processing system. Note that the order of the processes can be changed as appropriate, multiple processes may be executed simultaneously, or some processes may be omitted.

[0039] 3.1 Overview 5 is a flowchart showing an outline of processing executed by the information processing system 1. In this processing, first, the control unit 23 causes the display unit 34 to display a reception screen (step S001). Next, as a reception step, the control unit 23 receives location information from the user via the display unit 34 (step S002). Next, the control unit 23 identifies multiple charging stations based on the location information received from the user and the location information of each charging station (step S003). Next, as a display control step, the control unit 23 displays information related to the renewable energy ratio of charging energy that can be charged at each of the multiple charging stations so that it can be compared for each charging station (step S004).

[0040] To summarize the above, according to one embodiment, the device includes at least one processor. The processor includes the following steps: The receiving step receives input of location information from a user; The first display control step displays first information corresponding to each of a plurality of charging stations identified based on the location information in a manner that allows comparison for each charging station, where the first information includes information about the renewable energy ratio of the charging energy that can be charged at each of the plurality of charging stations. With this configuration, when a user is considering which charging station to use, input of location information is received from the user, and the renewable energy ratio of the charging energy that can be charged at each of a plurality of charging stations identified as candidates based on the received location information is displayed in a manner that allows comparison for the user. Therefore, it is possible to encourage users to use charging stations with a high renewable energy ratio. This aspect encourages user behavioral change and reduces environmental impact.

[0041] 3.2 Specific examples FIG. 6 is an activity diagram showing an example of the flow of processing executed by the information processing system 1. This example flow may fall within the scope defined in the overview above. The following description will be given along with each activity in this activity diagram. This information processing is performed, for example, to provide information about charging stations with low environmental impact to a user who wishes to charge with charging energy. This information processing is also performed to provide information about the charged energy to a user who has used the charging station. This information processing may include any exception processing not shown. Exception processing includes the interruption of this information processing or the omission of each process. The selection or input performed in this information processing may be based on a user operation or may be performed automatically without relying on a user operation.

[0042] The control unit 23 displays a reception screen on the display unit 34 (activity A001). The reception screen is configured to be able to receive an operation to be executed. The reception screen is configured to allow selection of, for example, a search operation and a history operation.

[0043] <An example of information processing when a search operation is performed> First, an example of information processing when a search operation is performed will be described. A search operation is an operation performed when a user searches for a charging station. As an example, information processing will be described when a user driving an electric vehicle searches for a charging station that charges the electric vehicle. First, when searching for a charging station, the user selects to start the search operation on the reception screen displayed in activity A001.

[0044] Next, as a receiving step, the control unit 23 receives input of location information from the user terminal 3 (activity A101). The received location information may be the current location of the user terminal 3 or an area designated by the user where charging is desired. The control unit 23 may receive the location information of the user terminal 3 estimated by the user terminal 3 using a GPS module, Wi-Fi, a mobile network, or the like.

[0045] Next, as a receiving step, the control unit 23 receives information regarding the charging time, which is the time during which charging will be performed, via the user terminal 3 (activity A102). The charging time is the time during which the user charges at the charging station, and may include any time or period during which charging is performed, such as the start time of charging, the end time of charging, or the duration of charging. The charging time may be specified based on, for example, an operation by the user.

[0046] Next, the control unit 23 identifies a plurality of charging stations where charging is possible based on the location information received from the user and the location information of each charging station (activity A103). The control unit 23 reads the location information of each charging station from the charging station information D1, and identifies a plurality of charging stations where charging is possible.

[0047] Next, the control unit 23 determines the display order of the identified charging stations to be displayed on the display unit 34 (activity A104). The display order is determined based on location information, the renewable energy ratio of the charging energy used at the charging station, the carbon offset ratio, the availability of charging equipment, and the like. The control unit 23 may preferentially display, among the multiple charging stations, charging stations with a high renewable energy ratio of the charging energy. In this manner, the user can be encouraged to charge at charging stations with a high renewable energy ratio of the charging energy. Furthermore, charging stations with a high total renewable energy ratio and carbon offset ratio of the charging energy may be preferentially displayed.

[0048] The control unit 23 displays first information corresponding to each of the multiple charging stations so that the first information can be compared for each charging station (activity A105). The first information is information relating to each charging station. As a first display control step, the control unit 23 may preferentially display the first information of a charging station having a high renewable energy ratio in the charging energy among the multiple charging stations. The first information includes information relating to the renewable energy ratio of the charging energy that can be charged at each of the multiple charging stations.

[0049] Furthermore, the control unit 23 may identify charging stations that can charge during the charging time based on information about the charging time received in activity A102. As a first display control step, the control unit 23 may display first information including the renewable energy ratio of the charging energy at each of a plurality of charging stations that can charge during the charging time. This aspect makes it possible to encourage the user to use a charging station with a high renewable energy ratio among charging stations that can charge during the charging time.

[0050] Here, the first information may include information regarding the presence or absence of information certifying the renewable energy ratio at each of the multiple charging stations. If there is certification information regarding the evidence certifying the renewable energy ratio, control unit 23 may display an object in the first information that accepts an instruction to display the certification information.

[0051] Next, when the control unit 23 receives a press on an object that receives an instruction to display certification information from the user via the display unit 34, the control unit 23 may display the certification information (activity A106). The certification information is configured to certify the renewable energy ratio of the charging energy at each charging station. In this manner, the user can check certifiable information regarding the renewable energy ratio of the charging station.

[0052] Next, as a reservation step, the control unit 23 may generate a reservation object that can accept a reservation for charging from a user based on availability information of the charging equipment of the charging station, or may accept a reservation in response to an operation on the reservation object (activity A107). Here, availability information is information that indicates whether the charging station is available for reservation.

[0053] <An example of information processing when history manipulation is performed> Next, an example of information processing when a history operation is performed on the reception screen will be described. As an example, information processing related to the history of a user who drives an electric vehicle using a charging station to charge the electric vehicle will be described.

[0054] First, the control unit 23 receives a usage history indicating that the user has charged (activity A201). For example, when the user charges at a charging station, the user holds the charging card they own over a card reader at the charging station, and the user account is authenticated. The control unit 23 receives information indicating that the user has charged at the charging station. The control unit 23 can receive, as the usage history, the name of the charging station where the user charged, the date and time of charging, and the amount of energy charged, in association with the user account.

[0055] Next, the control unit 23 acquires reference information from the charging station information D1 based on the received usage history (activity A202). The reference information is information related to charging energy that can be charged at each charging station. The reference information is stored in the charging station information D1. For example, the control unit 23 acquires, as reference information, information related to the renewable energy ratio contained in the energy charged to the user and information related to the breakdown of the power source of the charging station from the charging station information D1. The control unit 23 may associate the information related to the renewable energy ratio and the information related to the breakdown of the power source of the charged energy with the user account and store them as usage history information.

[0056] Next, the control unit 23 accepts the designation of a predetermined period via the display unit 34 (activity A203). The predetermined period may be, for example, a predetermined period such as one year, one month, or one week, or may be any period that can be set between one date and another date. For convenience of explanation, the designated predetermined period will be referred to as the designated period below.

[0057] Next, the control unit 23 calculates the accumulated charge energy, which is the accumulated amount of energy charged within the specified period, and information on the renewable energy ratio of the accumulated charge energy, based on the usage history and the reference information (activity A204).

[0058] Next, the control unit 23 calculates the greenhouse gas reduction amount associated with charging by the user, which is calculated from the usage history according to a first calculation condition that indicates the correspondence relationship between the type of power source and the greenhouse gas reduction amount (activity A205). The control unit 23 can calculate the greenhouse gas reduction amount based on the usage history and the reference information, using the first calculation condition.

[0059] Here, the first calculation condition will be explained. The first calculation condition is a condition that indicates the correspondence relationship between the type of power source and the amount of greenhouse gas reduction.

[0060] The first calculation condition is, for example, the following calculation formula: (amount of greenhouse gas reduction) = (amount of energy charged) x ((greenhouse gas emission coefficient of fossil fuel) - (greenhouse gas emission coefficient of energy charged by the user)).

[0061] Greenhouse gases include, for example, carbon dioxide, methane, nitrous oxide, and chlorofluorocarbons. The amount of greenhouse gas reduction is sometimes expressed as the amount of greenhouse gas reduction converted into carbon dioxide in order to uniformly evaluate different types of greenhouse gases. Therefore, the first calculation condition may be a calculation formula: (CO2 reduction) = (amount of charged energy) × ((CO2 emission coefficient of fossil fuel) - (CO2 emission coefficient of energy charged by the user)). Here, the CO2 emission coefficient may be a coefficient that can calculate the amount of greenhouse gas emissions converted into carbon dioxide, and the amount of CO2 reduction may be the amount of greenhouse gas reduction converted into carbon dioxide.

[0062] In addition, when greenhouse gas emissions are offset by carbon offsetting, the first calculation condition may be the following calculation formula: (amount of greenhouse gas reduction) = (amount of energy charged) x ((greenhouse gas emission coefficient of fossil fuel) - (greenhouse gas emission coefficient of energy charged by the user) - (offset greenhouse gas emission coefficient)).

[0063] Following activity A205, the control unit 23, as a second output unit, calculates the amount of greenhouse gas emissions from the usage history in accordance with second calculation conditions that indicate the correspondence between the type of power source and the amount of greenhouse gas emissions (activity A206).

[0064] Here, the second calculation condition will be explained. The second calculation condition is a condition that indicates the correspondence relationship between the type of power source and the amount of greenhouse gas emissions.

[0065] The second calculation condition is, for example, a calculation formula: (Greenhouse gas emissions) = (Amount of charged energy) × (Greenhouse gas emission coefficient of energy charged by the user). As with the first calculation condition, the second calculation condition may be a calculation formula for greenhouse gas emissions converted into carbon dioxide or a calculation formula that includes an offset by carbon offset.

[0066] The first and second calculation conditions are not limited to the above formulas, and may include any relational expression that indicates the correspondence relationship between the type of power source and greenhouse gases. Furthermore, the first and second calculation conditions are not limited to calculation conditions such as formulas, and may be table data that indicates the correspondence relationship, or may be configured to output the greenhouse gas reduction amount or greenhouse gas emission amount by inputting the type of power source and the amount of activity.

[0067] Following activity A205 or activity A206, the control unit 23 causes the display unit 34 to display second information (activity A207). The second information is information related to the usage history of the charging station during a specified period. For example, the second information includes the calculated cumulative charging energy and information related to the renewable energy ratio of the cumulative charging energy. As a display control step, the control unit 23 may cause the second information to display a breakdown of the cumulative charging energy for each power source so that the breakdown can be compared for each power source. The control unit 23 may also display a breakdown of the cumulative charging energy for each power source, which is the cumulative value of energy charged by the user during a predetermined period based on the usage history, so that the breakdown can be compared for each power source. The breakdown of the cumulative charging energy for each power source may be displayed in a manner that allows the amount of energy from the power source corresponding to renewable energy to be distinguished from the amount of energy from other power sources. This manner allows the user to compare the breakdown of the cumulative charging energy for each power source for each power source.

[0068] Next, in response to an operation instruction on the display unit 34, the control unit 23 outputs data on the usage history of the charging station associated with charging by the user as a first output step (activity A208). Examples of the usage history data include data on greenhouse gas reduction amounts and data on greenhouse gas emissions. The control unit 23 may output data on greenhouse gas reduction amounts as data related to the usage history as a first output unit. The control unit 23 may output data on greenhouse gas emissions as data related to the usage history as a second output unit.

[0069] Furthermore, the control unit 23 may, in the presentation step, present to the user a carbon offset plan that can offset the greenhouse gas emissions according to the outputted greenhouse gas emissions. The control unit 23 can propose to the user that an amount equivalent to the greenhouse gas emissions be offset. The user can then propose to the user that the amount of greenhouse gas emissions be offset.

[0070] Following activity A207, the control unit 23 may display detailed information, which is details of the user's usage history, on the display unit 34 in response to an operation instruction to the display unit 34 (activity A209). The detailed information is detailed information on the user's usage history of charging stations during a specified period, and may include the name of the charging station for each usage history, the date and time of charging, the amount of energy charged, a breakdown of the power source, etc.

[0071] 4. Details of data processing The details of the above information processing will be described below as an example with reference to FIGS.

[0072] 4.1. Search Operation Details First, the details of the information processing executed by the control unit 23 when a search operation is performed will be described.

[0073] FIG. 7 is a diagram showing a reception screen 6, which is an example of a reception screen displayed on the display unit 34. The reception screen 6 is a screen for accepting the start of a search operation or a history operation. The reception screen 6 includes an area 61 and an object 62. The control unit 23 causes a map M of a location specified by the user terminal 3 to be displayed on the reception screen 6. The control unit 23 causes the area 61 and the object 62 to be superimposed on the map M. The control unit 23 may also cause the map M related to the location information of the user terminal 3 to be displayed by default.

[0074] Area 61 is an area that accepts input for searching for a charging station. Area 61 may be configured to be able to accept information about a location where the user desires to charge, or may be configured to be able to accept input of the user's desired charging conditions.

[0075] The object 62 is an object that accepts the display of a search screen. When the control unit 23 accepts the pressing of the object 62 via the display unit 34, the control unit 23 causes the display unit 34 to display the search screen 7.

[0076] 8 is a diagram showing a search screen 7, which is an example of a search screen displayed on the display unit 34. The search screen 7 is a screen for inputting search conditions for charging stations, etc. The search screen 7 includes areas 71 to 77.

[0077] Area 71 is an area where the user inputs information about the location where the user wants to use the charging station. The desired location may be, for example, the area where the user wants to use the charging station, or the name of a spot in the area where the user wants to charge. Area 72 is an area where the user inputs the date on which the user will use the charging station. Area 73 is an area where the user inputs the time period during which the user will use the charging station.

[0078] Area 74 is an area where the user inputs a charging card to be used at a charging station. The control unit 23 may receive information about the charging card that the user uses for charging on the search screen 7. The charging card is a card-shaped device that the user uses when charging at a charging station. The charging card is used by the user to make a contract with a charging service provider and to perform authentication and payment to use charging stations within that network.

[0079] Furthermore, the control unit 23 may accept information about the vehicle to be charged on the search screen 7. In this manner, the control unit 23 can identify a charging station that suits the user. In this embodiment, the control unit 23 accepts information about the vehicle to be charged through input to areas 75 to 77. Area 75 is an area where the user accepts the manufacturer name of the vehicle to be charged at the charging station. Area 76 is an area where the user accepts the model name of the vehicle to be charged at the charging station. The model name may be an electric vehicle (EV), hybrid vehicle, fuel cell vehicle, electric motorcycle, electric scooter, electric kickboard, electric hoverboard, etc., or may be the model name of the vehicle. Area 77 is an area where the user accepts the grade of the vehicle to be charged at the charging station. This is because even for the same model of vehicle, the storage battery model and charging method may differ depending on the grade and model.

[0080] When the user completes input into areas 71 to 77 and performs an operation to start a search, control unit 23 identifies charging stations that allow charging in accordance with search conditions defined based on the input contents in areas 71 to 77. Thereafter, control unit 23 may display first information corresponding to each of the identified charging stations on display unit 34 as search result screen 8.

[0081] FIG. 9 is a diagram showing a search result screen 8, which is an example of a search result screen displayed on the display unit 34. The search result screen 8 is a screen on which first information corresponding to charging stations is displayed superimposed on a map M. The search result screen 8 includes objects 81 to 83 and a card 84. The object 81 is an object indicating the position of the identified charging station A on the map M. The object 82 is an object indicating the position of the identified charging station B on the map M. The object 83 is an object indicating the position of the identified charging station C on the map M. The card 84 is the first information displayed superimposed on the map M. The control unit 23 may switch the display of the card 84 and the card 85 in response to a user operation on the display unit 34. The control unit 23 may accept the switching of the card 84 and the card 85, for example, by a user swipe operation on the display unit 34.

[0082] By displaying the cards 84 and 85 to the user so that they can be compared, the use of charging stations with a high proportion of renewable energy can be encouraged.

[0083] In the first display control step, the control unit 23 may selectably display objects indicating the positions of a plurality of charging stations identified according to the location information on the map, and when a selection of one of the objects is received from the user, may display first information about the charging station corresponding to the selected object. With this configuration, the user can select a charging station from its position on the map and compare the first information about the plurality of charging stations.

[0084] 10 shows cards 9A and 9B, which are examples of cards displaying first information. Cards 9A and 9B each include areas 91 to 94, visual information 95, areas 96 to 99, and an object 971.

[0085] Area 91 is an area that displays information for identifying a charging station. In this embodiment, the name of each charging station ("Charging Station A" or "Charging Station B") is displayed in area 91. The information about the charging station may include any information that can identify the charging station, such as an address, a telephone number, or a photo, in addition to the name of the charging station.

[0086] Area 92 is an area that displays information about the charging equipment owned by the charging station. Specifically, the information about the charging equipment includes the charging standard of the charging equipment, the charging speed of the charging equipment (high speed, medium speed, low speed), the power supply per unit time of the charging equipment, the number of vehicles that can be charged by the charging equipment installed at the charging station, the vehicles compatible with the charging equipment, the connection type of the charging equipment, etc.

[0087] Area 93 is an area that displays the availability of charging equipment owned by the charging facility. Control unit 23 may display congestion (full) information and waiting time for charging equipment at the charging station in area 93. Area 93 may also be configured to accept reservations along with information indicating availability.

[0088] Area 94 is an area that displays the distance from the user's location to the charging station.

[0089] The visual information 95 is visual information indicating the renewable energy ratio. The visual information 95 displays the renewable energy ratio of the charging energy available at the charging station in a manner that is visually recognizable to the user. For example, the visual information 95 is preferably in a form that can intuitively convey the ratio to the user, such as a pie chart.

[0090] Furthermore, the visual information 95 may include information regarding the carbon offset ratio of greenhouse gas emissions resulting from the charging energy of each of the multiple charging stations. When greenhouse gases are emitted due to the energy used for charging at a charging station, the visual information 95 may display the carbon offset ratio of the greenhouse gas emissions in a manner that is visible to the user. This can encourage users to use charging stations with a high carbon offset ratio. Therefore, this aspect can encourage users to change their behavior and reduce environmental impact.

[0091] Visual information 95 displays the renewable energy ratio of the available charging energy and the carbon offset ratio in a manner that is easy for the user to understand. For example, visual information 95 of card 9A shows that the renewable energy ratio is 90% and the carbon offset ratio is 10%. Visual information 95 of card 9B shows that the renewable energy ratio is 20%.

[0092] Area 96 is an area showing information about the price for charging the charging energy. Area 96 may display the price per unit charging time. Area 96 may display, for example, the price for charging per minute.

[0093] Area 97 is an area that displays whether or not an environmental value certificate has been issued. If an environmental value certificate has been issued, area 97 may include an object 971 that is configured to allow the environmental value certificate to be confirmed. If an environmental value certificate has been issued, control unit 23 may preferentially display the first information.

[0094] Area 98 indicates an estimated charge amount per unit time. The charge amount per unit time is calculated by (charge amount (kWh)) = (charge rate (kW)) × (charge time (hours)). Area 98 may indicate, for example, an estimated charge amount for 30 minutes of charging. The estimated charge amount may be the ratio of the charge amount in 30 minutes to the total charge amount of the storage battery, or the drivable distance corresponding to the charge amount in 30 minutes. For example, "approximately 40% (224 km) / 30 minutes" in area 98 of card 9A indicates that 40% of the total charge amount is charged by 30 minutes of charging, and the drivable distance corresponding to that charge amount is 224 km. Control unit 23 may obtain the charge amount per unit time based on past charging records at each charging station and display it as (estimated charge amount per unit time).

[0095] An area 99 displays whether the charging station is open or closed. The area 99 may also display information about business hours and regular holidays.

[0096] Note that the display mode of the first information is not limited to this. Fig. 11 is a diagram showing a screen 10 showing another example of the first information displayed on the display unit 34. The screen 10 includes a card 9A and a card 9B. In Fig. 9, the cards 84 and 85 are displayed in a comparable manner by being swapped, but the control unit 23 may also display a plurality of pieces of first information in a list form on the same screen.

[0097] 4.2. History Operation Details Next, details of information processing performed by the history operation executed by the control unit 23 will be described with reference to FIGS.

[0098] 12 is a diagram showing a screen 11 illustrating an example of the second information displayed on the display unit 34. The screen 11 displays information related to the usage history of the charging station during a specified period. The screen 11 includes an area 111, an area 112, visual information 113, an area 114, an area 115, visual information 116, an object 117, an object 118, an object 111L, and an object 111R.

[0099] Area 111 is an area that shows the specified period specified in activity A203. The specified period displayed in area 111 is configured to be changeable by objects 111L and 111R. In other words, objects 111L and 111R can function as a UI for accepting the specification of the specified period in activity A203. For example, screen 111 is second information when "October 2024" is selected as the specified period, and is configured so that when object 111L or object 111R, located on the left or right of "October 2024," is selected, the specified period changes by one month.

[0100] Area 112 is an area that includes the cumulative charging energy. For example, on screen 11, area 112 includes text information "160.3 kWh" as information about the cumulative charging energy. This indicates that the cumulative charging energy amount for "October 2024" is 160.3 kWh.

[0101] Visual information 113 is visual information regarding the renewable energy ratio of cumulative charging energy. Visual information 113 includes a graph indicating that the renewable energy ratio is 50% and the non-renewable energy ratio is 50%. The graph of visual information 113 is preferably in a form that can intuitively convey the ratio to the user, such as a pie chart.

[0102] Area 114 is an area that includes information about the renewable energy ratio of the energy charged within the specified period. Area 114 includes the text information "50%" as information about the renewable energy ratio. This indicates that the renewable energy ratio of the energy charged during the one month of "October 2024", which is the specified period, is 50%.

[0103] Area 115 is an area that contains information about the amount of greenhouse gas reduction associated with charging by the user. As described above, the amount of greenhouse gas reduction can be calculated from the usage history according to the first calculation condition that indicates the correspondence between the type of power source and the amount of greenhouse gas reduction. On screen 11, area 115 contains text information "CO2 70.1 kg" as information about the amount of greenhouse gas reduction. This indicates that the amount of greenhouse gas reduction associated with the energy charged in "October 2024" is 70.1 kg of carbon dioxide equivalent.

[0104] Visual information 116 is an area showing a breakdown of the cumulative charging energy by power source. Visual information 116 displays a breakdown of the amount of energy from the power sources, from top to bottom: "solar," "hydro," "wind," "oil," "natural gas," and "coal." Of these, "solar," "hydro," and "wind" are power sources corresponding to the amount of energy from renewable energy, and are displayed in descending order of the amount of energy in the breakdown. "oil," "natural gas," and "coal" are power sources corresponding to the amount of energy from other power sources, and are displayed in descending order of the amount of energy in the breakdown. In visual information 116, information on renewable energy power sources is displayed before information on non-renewable energy power sources. The control unit 23 displays the breakdown of the cumulative charging energy for each power source in the visual information 116 in a manner that allows the user to distinguish between information corresponding to the amount of energy from power sources corresponding to renewable energy (for example, solar, hydroelectric, wind power) and information corresponding to the amount of energy from other power sources (oil, natural gas, coal). In this manner, the user can compare the breakdown of the cumulative charging energy for each power source, which is the cumulative value of energy charged by the user, for each power source.

[0105] Object 117 is an object that receives an instruction to download information related to a usage history associated with charging by a user. When control unit 23 receives a press on object 117, it may output the usage history information stored in association with a user account. Specifically, control unit 23 may output any of information including the name of the charging station where the user charged, the date and time of charging, the amount of energy charged, information about the renewable energy ratio contained in the energy charged to the user, and information about the breakdown of the power source of the charged energy.

[0106] The object 118 is an object that receives an instruction to display the usage history for each piece of charging information as detailed information. When the control unit 23 receives an instruction to display the detailed information, the control unit 23 may cause the user terminal 3 to display the detailed information, which is details of the usage history by the user.

[0107] Area 119 includes text information such as "Charging with 50% renewable energy reduced 70.1 kg of CO2." Area 119 includes text information that explains the information included in visual information 113, area 114, and area 115.

[0108] FIG. 13 is a diagram showing a screen 12 illustrating an example of detailed information of the second information displayed on the display unit 34. The screen 12 includes areas 121 to 123 and visual information 124. Area 121 is an area that includes the date and time of charging. Area 122 is an area that includes the name of the charging station. Area 123 is an area that includes the time taken to use the charging equipment and the amount of energy charged. Visual information 124 is visual information that visually displays a breakdown by power of the charging energy charged at charging station A from 10:30 on December 25th. The control unit 23 causes the visual information 124 to preferentially display information about renewable energy sources, such as solar power and hydropower.

[0109] 5. Variations Furthermore, the following aspects may be adopted: The above-described information processing aspects are merely examples, and the present invention is not limited to these, and can be modified as appropriate within the scope of the technical concept of the invention.

[0110] In the granting step, the control unit 23 may grant a benefit to the user according to information on the renewable energy ratio included in the charged energy or information on the breakdown of the power source of the charged energy, which is included in the usage history. For example, when the user charges at a charging station, the control unit 23 may grant a discount coupon or points to the user account of the authenticated charging card according to the renewable energy ratio included in the charged energy.

[0111] In the above embodiment, the program is described as an application on a user's smartphone, but the program may also be a program for a navigation system installed in an automobile.

[0112] In the above embodiment, the user's specification of the charging time was accepted in activity A102, but if the user does not specify the charging time, the control unit 23 may assume that the user is currently considering charging and accept the current time as the start time of charging, which is an example of the charging time.

[0113] In the above embodiment, the case of charging an automobile was described, but the present invention can also be applied to any case of charging a storage battery, and includes, for example, an information processing system used when charging a storage battery of a smartphone, robot, drone, etc.

[0114] The overall configuration shown in Fig. 1 is an example and is not limited to this. For example, the server 2 may be distributed across two or more devices, or may be replaced by a cloud computing system. Furthermore, all processing may be performed by the server 2, or all processing may be performed by the user terminal 3. An application may be installed on the user terminal 3, and the user terminal 3 and the server 2 may work together to execute the processing described above.

[0115] The server 2 may be an on-premise server or a cloud server. The cloud server 2 may provide the above functions and processes in the form of, for example, SaaS (Software as a Service) or cloud computing.

[0116] In the above embodiment, the server 2 performs various storage and control operations, but multiple external devices may be used instead of the server 2. That is, various information and programs may be distributed and stored in multiple external devices using block chain technology or the like.

[0117] It may be provided in the following manner.

[0118] (1) An information processing system including at least one processor, the at least one processor configured to execute a program to perform the following steps: a reception step receives input of location information from a user; a first display control step displays first information corresponding to each of a plurality of charging stations identified according to the location information in a comparable manner for each charging station; and the first information includes information regarding the renewable energy ratio of charging energy that can be charged at each of the plurality of charging stations.

[0119] According to this configuration, when a user is considering which charging station to use, the system accepts input of location information from the user, and displays the renewable energy ratio of the charging energy available at each of multiple charging stations identified as candidates based on the accepted location information so that the user can compare them. This can encourage users to use charging stations with a high renewable energy ratio. This aspect can encourage users to change their behavior and reduce environmental impact.

[0120] (2) In the information processing system described in (1) above, the reception step receives information regarding a charging time, which is the time during which charging is performed, and the first display control step displays the first information including the renewable energy ratio of the charging energy during the charging time.

[0121] With this configuration, the renewable energy ratios of available charging stations are displayed for the user to compare during the charging time. This allows the user to be encouraged to use a charging station with a high renewable energy ratio among available charging stations during the charging time. This configuration encourages users to change their behavior and reduce environmental impact.

[0122] (3) In the information processing system described in (1) or (2) above, in the first display control step, the first information of a charging station having a high renewable energy ratio in the charging energy among the plurality of charging stations is preferentially displayed.

[0123] With this configuration, information about charging stations with a high renewable energy ratio among candidate charging stations is preferentially displayed to the user. This encourages the user to charge at charging stations with a high renewable energy ratio. This aspect encourages users to change their behavior and reduces the environmental impact.

[0124] (4) In the information processing system described in any one of (1) to (3) above, the information regarding the renewable energy ratio includes information regarding the carbon offset ratio for greenhouse gas emissions resulting from the charging energy of each of the multiple charging stations.

[0125] With this configuration, if greenhouse gases are emitted as a result of energy used to charge at a charging station, the carbon offset percentage relative to the greenhouse gas emissions is displayed to the user. This encourages users to use charging stations with a high carbon offset percentage. This configuration encourages users to change their behavior and reduce environmental impact.

[0126] (5) In the information processing system described in any one of (1) to (4) above, the first information includes information regarding the presence or absence of information certifying the renewable energy ratio at each of the plurality of charging stations.

[0127] With this configuration, the presence or absence of information that certifies the renewable energy ratio is displayed to the user. This can encourage the user to use charging stations that have information that certifies the renewable energy ratio. This aspect can encourage users to change their behavior and reduce environmental impact.

[0128] (6) In the information processing system described in any one of (1) to (5) above, in the first display control step, objects indicating the respective positions of the plurality of charging stations identified according to the location information are displayed on a map in a selectable manner, and when a selection of one of the objects is received from the user, the first information of the charging station corresponding to the selected object is displayed.

[0129] According to this configuration, location information of multiple charging stations is displayed on a map for the user, and when the user presses an object indicating the location of a charging station, information such as the renewable energy ratio of the charging station corresponding to the pressed object is displayed to the user. Therefore, the user can check the renewable energy ratio of the charging station selected on the map. This aspect encourages user behavioral change and reduces environmental impact.

[0130] (7) In the information processing system described in any one of (1) to (6) above, further, in a first history receiving step, a usage history of the charging station by the user is received, and the usage history includes information on the amount of energy charged at each of the plurality of charging stations and the renewable energy ratio contained in the charged energy; and further, in a second display control step, second information is displayed based on the usage history, and the second information includes cumulative charging energy, which is the cumulative amount of energy charged within a predetermined period, and information on the renewable energy ratio of the cumulative charging energy.

[0131] With this configuration, when a user uses a charging station, the amount of charged energy and the renewable energy ratio are received as usage history, and the cumulative amount of charged energy and the renewable energy ratio within a predetermined period are displayed to the user based on the usage history. The user can understand the cumulative amount of charged energy and the renewable energy ratio over the predetermined period. This configuration encourages users to change their behavior and reduces environmental impact.

[0132] (8) In the information processing system described in any one of (1) to (7) above, further, in the second history receiving step, a usage history of the charging station by the user is received, the usage history including information about the charging station where charging was performed and the amount of energy charged at the charging station, and the information about the charging station where charging was performed includes information about a breakdown of the power source of the charging station; and further, in the third display control step, based on the usage history, a breakdown of energy for each power source of cumulative charging energy, which is a cumulative value of energy charged by the user within a predetermined period, is displayed so that the energy breakdown for each power source of the cumulative charging energy can be compared for each power source, and the energy breakdown for each power source of the cumulative charging energy is displayed in a manner that allows the amount of energy from a power source corresponding to renewable energy to be distinguished from the amount of energy from other power sources.

[0133] With this configuration, when a user uses a charging station, information about the charging station where charging was performed and the amount of energy charged at the charging station are received as usage history, and based on the usage history, a breakdown of the accumulated charging energy, which is the accumulated value of the charged energy, for each power source is displayed so that the user can compare the energy for each power source. This aspect can encourage users to change their behavior and reduce the environmental impact.

[0134] (9) In the information processing system described in (8) above, the first output step further outputs data on the amount of greenhouse gas reduction associated with charging by the user, calculated from the usage history according to a first calculation condition that indicates the correspondence between the type of power source and the amount of greenhouse gas reduction.

[0135] With this configuration, it is possible to output to the user data on the amount of greenhouse gas reduction resulting from the energy charged over a predetermined period of time.

[0136] (10) In the information processing system described in either (8) or (9) above, further, in a second output step, data on greenhouse gas emissions associated with charging by the user is output, the data being calculated from the usage history according to second calculation conditions that indicate the correspondence between the type of power source and greenhouse gas emissions, and further, in a presentation step, a carbon offset plan that can offset the greenhouse gas emissions is presented to the user in accordance with the output greenhouse gas emissions.

[0137] With this configuration, it is possible to propose to the user that they offset the amount of greenhouse gas emissions.

[0138] (11) In the information processing system described in any one of (7) to (10) above, the granting step further grants a benefit to the user based on information contained in the usage history regarding the renewable energy ratio contained in the charged energy, or information regarding the breakdown of the power source of the charged energy.

[0139] With this configuration, it is possible to encourage the user to change their behavior.

[0140] (12) In the information processing system described in any one of (1) to (11) above, the first information includes availability information indicating whether the charging station corresponding to the first information is available for reservation, and further, in the reservation step, a reservation object capable of accepting a charging reservation from the user is generated based on the availability information.

[0141] This configuration allows the user to reserve an available charging station in advance.

[0142] (13) An information processing method, comprising the steps of the information processing system according to any one of (1) to (12) above.

[0143] (14) A program that causes at least one computer to execute each step in the information processing system according to any one of (1) to (12) above. Of course, this is not the case.

[0144] Finally, while various embodiments of the present invention have been described, these are presented by way of example only and are not intended to limit the scope of the invention. The novel embodiments may be embodied in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. Such embodiments and modifications are intended to be included within the scope and spirit of the invention, as well as within the scope of the inventions and their equivalents as defined in the accompanying claims. [Explanation of symbols]

[0145] 1: Information processing system 2: Server 20: Communication bus 21: Communications Department 22: Storage section 23: Control section 3: User terminal 30: Communication bus 31: Communications Department 32: Storage section 33: Control section 34:Display section 35: Input section 6: Reception screen 61 :Area 62: Object 7: Search screen 71 :Area 72 :Area 73 :Area 74 :Area 75: area 76 :Area 77 :Area 8: Search results screen 81: Object 82: Object 83: Object 84: Card 85: Card 9A: Card 9B: Card 91: area 92: area 93 :Area 94 :Area 95: Visual Information 96 :Area 97 :Area 971: Object 98 :Area 99: area 10: Screen 11: Screen 111 :Area 111L: Object 111R: Object 112 :Area 113: Visual information 114 :Area 115 :Area 116: Visual Information 117: Object 118: Object 119 :Area 12: Screen 121 :Area 122 :Area 123 :Area 124: Visual information D1: Charging station information D11: Data D12: Data D13: Data D14: Data D15: Data D16: Data DB1 : Database M: Map

Claims

1. An information processing system, The method includes at least one processor, the at least one processor being configured to execute a program to perform the following steps: In the reception step, the location information is received from the user, In the first display control step, first information corresponding to each of a plurality of charging stations identified according to the location information is displayed in a comparable manner for each charging station, and the first information includes information regarding the renewable energy ratio of charging energy that can be charged at each of the plurality of charging stations.

2. 2. The information processing system according to claim 1, In the receiving step, information regarding a charging time, which is a time during which charging is performed, is received; In the first display control step, the system displays the first information including a renewable energy ratio of the charging energy during the charging time.

3. 2. The information processing system according to claim 1, In the first display control step, the first information of a charging station having a high renewable energy ratio in the charging energy among the plurality of charging stations is preferentially displayed.

4. 2. The information processing system according to claim 1, The system, wherein the information regarding the renewable energy ratio includes information regarding a carbon offset ratio for greenhouse gas emissions resulting from charging energy of each of the plurality of charging stations.

5. 2. The information processing system according to claim 1, The system, wherein the first information includes information regarding the presence or absence of information verifying the renewable energy proportion at each of the plurality of charging stations.

6. 2. The information processing system according to claim 1, In the first display control step, objects indicating the respective positions of the plurality of charging stations identified according to the location information are displayed on a map in a selectable manner, and when a selection of one of the objects is received from the user, the system displays the first information of the charging station corresponding to the selected object.

7. 2. The information processing system according to claim 1, Furthermore, in the first history receiving step, a usage history of the charging station by the user is received, and the usage history includes information on an amount of energy charged at each of the plurality of charging stations and the renewable energy ratio contained in the charged energy; Furthermore, in the second display control step, second information is displayed based on the usage history, and the second information includes cumulative charging energy, which is the cumulative amount of energy charged within a specified period, and information regarding the renewable energy ratio of the cumulative charging energy.

8. 2. The information processing system according to claim 1, Furthermore, in the second history receiving step, a usage history of the charging station by the user is received, the usage history including information about a charging station where charging was performed and an amount of energy charged at the charging station; the information about the charging station where the charging was performed includes information about a breakdown of the power sources of the charging station; Furthermore, in the third display control step, a breakdown of the energy for each power source of the cumulative charging energy, which is a cumulative value of the energy charged by the user within a predetermined period, is displayed so as to be comparable for each power source based on the usage history, The system displays the breakdown of the cumulative charging energy by power source in a manner that makes it possible to distinguish between the amount of energy from the power source corresponding to renewable energy and the amount of energy from other power sources.

9. 9. The information processing system according to claim 8, Furthermore, in a first output step, the system outputs data on the amount of greenhouse gas reduction associated with charging by the user, calculated from the usage history in accordance with first calculation conditions that indicate a correspondence between the type of power source and the amount of greenhouse gas reduction.

10. 9. The information processing system according to claim 8, Furthermore, in a second output step, data on greenhouse gas emissions associated with charging by the user is output, the data being calculated from the usage history in accordance with second calculation conditions that indicate a correspondence relationship between a type of power source and greenhouse gas emissions; Furthermore, in the presenting step, the system presents to the user a carbon offset plan capable of offsetting the greenhouse gas emissions in accordance with the outputted greenhouse gas emissions.

11. 8. The information processing system according to claim 7, Furthermore, in the granting step, the system grants a reward to the user based on information contained in the usage history regarding the renewable energy ratio contained in the charged energy, or information regarding the breakdown of the power source of the charged energy.

12. 2. The information processing system according to claim 1, the first information includes availability information indicating whether the charging station corresponding to the first information is available for reservation; Furthermore, in the reservation step, the system generates a reservation object that can accept a reservation for charging from the user based on the availability information.

13. An information processing method, comprising: A method including the steps in the information processing system according to any one of claims 1 to 12.

14. A program, A program that causes at least one computer to execute each step in the information processing system according to any one of claims 1 to 12.

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