Management device and management method

Abstract

A management device (10) manages a greenhouse gas (GHG) emission amount, which is the amount of GHG emitted in a hydrogen supply chain (SC). A GHG emission quantification rule (CR) includes a first quantification rule (CR1) and a second quantification rule (CR2). The management device (10) comprises: an input unit (11) for inputting setting data for setting a quantification rule (CR); an output unit (11) for outputting a prescribed notification; and a processing unit (13). Upon receiving a first quantification rule (CR1) setting, the processing unit (13) determines whether or not there is a difference between the first quantification rule (CR1) and a second quantification rule (CR2) received before the first quantification rule (CR1). When it is determined that there is a difference between the first quantification rule (CR1) and the second quantification rule (CR2), the processing unit (13) issues a notification indicating the difference between the first quantification rule (CR1) and the second quantification rule (CR2) via the output unit (11).

Description

Management apparatus and management method

[0001] The present invention relates to a management apparatus and a management method.

[0002] In order to prevent global warming, reduction of GHG (Greenhouse Gas) emissions is required. As one of the measures for reducing GHG emissions, the use of hydrogen instead of fossil fuels has been proposed.

[0003] Hydrogen is a clean energy source that does not emit GHG during combustion, but GHG may be emitted during the production process of hydrogen. GHG emitted in the process of producing hydrogen is GHG emitted through the activities of operators that produce hydrogen. Similarly, GHG may be emitted during the transportation process of hydrogen. Even in the final utilization stage of hydrogen, GHG may be emitted through the activities of operators that use hydrogen.

[0004] Therefore, in order to further reduce GHG emissions, it is required to take into consideration the amount of GHG emitted in the hydrogen production stage, or the amount of GHG emitted throughout the entire supply chain from the hydrogen production stage to the final utilization stage. For example, Patent Document 1 discloses that in order to take into consideration the amount of carbon dioxide emitted throughout the entire supply chain, CO ２ a planning apparatus that acquires emissions from a hydrogen production apparatus, a hydrogen storage and supply apparatus, a hydrogen transportation apparatus, a power grid, a renewable energy power generation apparatus, and a power storage apparatus is disclosed.

[0005] In order to take GHG emissions into consideration, rules for quantifying GHG emissions are required, and this matter is being discussed globally. For example, international standards and guidelines that stipulate quantification rules for GHG emissions are under discussion. Additionally, systems that stipulate quantification rules for GHG emissions are under discussion in various countries. As quantification rules for GHG emissions, there are, for example, quantification rules established by governments of various countries, quantification rules independently established by industries, and quantification rules independently established by certification bodies and the like.

[0006] Businesses that sell hydrogen need to select appropriate quantification rules according to the market they anticipate and quantify their GHG emissions. The person in charge of quantifying GHG emissions needs to select quantification rules in accordance with company policy and then carry out various preparatory tasks to ensure that GHG emissions can be quantified in accordance with the selected rules.

[0007] Japanese Patent Publication No. 2024-6485

[0008] However, because hydrogen is a single-component substance, it is possible to anticipate numerous sales destinations for hydrogen produced at the same facility. Therefore, quantification rules may change along with changes in sales destinations. When quantification rules change, those responsible must re-prepare to ensure that GHG emissions can be quantified in accordance with the new quantification rules.

[0009] One of the purposes of this disclosure is to provide a management device and management method that can reduce the burden on personnel when the rules for quantifying greenhouse gas emissions are changed.

[0010] The management device relating to this disclosure manages GHG emissions, which are the amount of greenhouse gases emitted in the hydrogen supply chain. The GHG emission quantification rule includes a first quantification rule and a second quantification rule that is different from the first quantification rule. The management device includes an input unit for inputting setting data for setting the quantification rule, an output unit for outputting a predetermined notification, and a processing unit that, upon receiving the setting of the first quantification rule, determines whether there is a difference between the first quantification rule and the second quantification rule received before the first quantification rule, and if it determines that there is a difference, provides a notification indicating the difference via the output unit.

[0011] The management method relating to this disclosure is a method for managing GHG emissions, which are the amount of greenhouse gases emitted in a hydrogen supply chain. The GHG emission quantification rule includes a first quantification rule and a second quantification rule that is different from the first quantification rule. The management method includes receiving the setting of the first quantification rule, determining whether there is a difference between the first quantification rule and the second quantification rule that was received before the first quantification rule, and, if it is determined that there is a difference, outputting a notification indicating the difference.

[0012] The management device and management method described herein can reduce the burden on personnel when the rules for quantifying greenhouse gas emissions are changed.

[0013] This figure shows a management system including a management device according to an embodiment of this disclosure, and an example of a hydrogen supply chain. This is a flowchart showing the flow of processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a block diagram showing the configuration of the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This figure shows an example of a quantification target table stored in a storage unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a first determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a diagram showing an example of a quantification method table stored in a storage unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a second determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a first determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a second determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a third determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a fourth determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a fifth determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This figure shows an example of an acquisition criteria table stored in a storage unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of a third determination processing performed by a processing unit included in the management device according to an embodiment of this disclosure. This is a flowchart showing the flow of the fourth determination process executed by the processing unit included in the management device according to the embodiment of this disclosure. This is a diagram showing an example of an discharge category table stored in the storage unit included in the management device according to the embodiment of this disclosure. This is a flowchart showing the flow of the fifth determination process executed by the processing unit included in the management device according to the embodiment of this disclosure.

[0014] Embodiments of the management device and management method of the present disclosure will be described below with reference to Figures 1 to 18. However, the present disclosure is not limited to the embodiments described below, and can be implemented in various forms without departing from its essence. Descriptions may be omitted where necessary to avoid repetition. In the figures, the same or corresponding parts are denoted by the same reference numerals, and their descriptions may not be repeated.

[0015] Figure 1 shows a management system 100 including the management device 10 of this embodiment, and an example of a hydrogen supply chain SC. A supply chain SC is composed of multiple operators. For example, as shown in Figure 1, a supply chain SC may consist of a manufacturer C1, at least one transporter C2, and a user C3.

[0016] Manufacturer C1 produces hydrogen. For example, manufacturer C1 produces hydrogen by water electrolysis. Alternatively, manufacturer C1 may produce hydrogen from coal, natural gas, ammonia, or nitrogen. The coal may be lignite.

[0017] Transporter C2 transports hydrogen. Transporter C2 transports hydrogen by transport vehicles such as tank trucks or trucks, for example. Alternatively, transporter C2 transports hydrogen by rail, ship, or pipeline. Transporter C2 may be a transporter of hydrogen within one country or region, or a transporter of hydrogen from one country or region to another. Hydrogen may be transported by multiple transporters C2, or by one transporter C2.

[0018] User C3 utilizes hydrogen. For example, user C3 may be a company that operates a hydrogen station, or a company that generates and sells electricity and steam using a cogeneration system.

[0019] As shown in Figure 1, the management system 100 comprises a management device 10 and a plurality of terminal devices 2. The terminal devices 2 may be owned by each business operator constituting the supply chain SC. Each terminal device 2 is connected to the management device 10 in a communicative manner. For example, the terminal devices 2 are connected to the management device 10 in a communicative manner via a public communication network such as the Internet. Alternatively, the terminal devices 2 are connected to the management device 10 in a communicative manner via a dedicated communication line. The terminal devices 2 may be, for example, general-purpose computers equipped with a processor, memory, communication circuitry, and a display. Hereinafter, the terminal device 2 of manufacturer C1 may be referred to as "first terminal device 2C1", the terminal device 2 of transporter C2 as "second terminal device 2C2", and the terminal device 2 of user C3 as "third terminal device 2C3".

[0020] The control device 10 manages the amount of GHG (Greenhouse Gas) emitted in the supply chain SC. Specifically, the control device 10 manages the amount of GHG emitted by the activities of each business operator constituting the supply chain SC in accordance with the pre-selected GHG emission quantification rule CR. In the following, the GHG emission quantification rule CR may be referred to as "quantification rule CR".

[0021] Specifically, information for quantifying GHG emissions is transmitted from terminal device 2 to management device 10. The information for quantifying GHG emissions conforms to a pre-selected quantification rule CR. Management device 10 manages GHG emissions based on the information acquired from terminal device 2.

[0022] For example, when a person in charge operates terminal device 2, information for quantifying GHG emissions is transmitted from terminal device 2 to management device 10. Alternatively, transmission conditions for transmitting information to management device 10 are pre-set in terminal device 2, and terminal device 2 transmits information for quantifying GHG emissions to management device 10 based on the transmission conditions.

[0023] More specifically, the GHG emission quantification rule CR specifies several items. Hereafter, the multiple items specified in the GHG emission quantification rule CR may be referred to as "specified items." The control device 10 obtains information regarding the specified items from the terminal device 2.

[0024] For example, if the specified items include a provision for calculating GHG emissions by multiplying the activity level by an emission factor, then the activity level information is transmitted from the terminal device 2 to the management device 10. If the specified items include a provision for directly measuring GHG emissions using a sensor, then the measured value of GHG emissions is transmitted from the terminal device 2 to the management device 10.

[0025] The specified items further include items related to sensors. The person in charge operates terminal device 2 to transmit information about the sensors from terminal device 2 to management device 10. As a result, the information about the sensors is registered in management device 10. For example, a person in charge at manufacturer C1 operates first terminal device 2C1 to transmit information about sensors installed at manufacturer C1's factory from first terminal device 2C1 to management device 10.

[0026] Information regarding the sensor includes, for example, information on the frequency at which data measured by the sensor is transmitted from the terminal device 2 to the management device 10, information on the type of sensor, information on the measurement accuracy of the sensor, and information on the mounting position of the sensor. Sensors include, for example, power meters, flow meters, weighing scales, and pressure gauges. The sensor includes a sensor that measures activity levels defined in the quantification rule CR. The sensor may further include a sensor that measures activity levels not defined in the quantification rule CR. For example, the sensor may include a sensor mounted at a mounting position defined in the quantification rule CR and a sensor mounted at a position different from the mounting position defined in the quantification rule CR.

[0027] Furthermore, GHGs include gases that have the property of absorbing heat from the atmosphere, such as carbon dioxide, methane, nitrous oxide, hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6).

[0028] As shown in Figure 1, the management device 10 comprises a communication unit 11, a storage unit 12, and a processing unit 13.

[0029] The communication unit 11 controls communication with the terminal device 2. For example, the communication unit 11 includes a communication module that conforms to a predetermined communication protocol. The communication module includes a communication circuit.

[0030] In detail, the communication unit 11 inputs setting data for setting a pre-selected quantification rule CR. Specifically, the communication unit 11 receives setting data from the terminal device 2 and inputs it to the processing unit 13. As a result, the processing unit 13 accepts the setting of the pre-selected quantification rule CR based on the setting data. In this embodiment, the communication unit 11 is an example of an "input unit".

[0031] Furthermore, the communication unit 11 receives sensor information from the terminal device 2 and inputs it to the processing unit 13. The communication unit 11 receives information from the terminal device 2 regarding the specified items of the quantification rule CR whose settings have been accepted and inputs it to the processing unit 13. For example, the communication unit 11 receives information on activity levels. Alternatively, the communication unit 11 receives information on measured values ​​of GHG emissions.

[0032] The communication unit 11 further outputs a predetermined notification. Specifically, the communication unit 11 sends a predetermined message to the terminal device 2. In particular, the processing unit 13 sends a predetermined notification to the terminal device 2 via the communication unit 11. The terminal device 2 displays the notification received from the management device 10, for example, on a display. In this embodiment, the communication unit 11 is an example of an "output unit".

[0033] The storage unit 12 stores computer programs, settings, and the like. The storage unit 12 has a main memory and an auxiliary storage device. The main memory includes, for example, semiconductor memory. The auxiliary storage device is composed of a non-volatile storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive). The storage unit 12 may also include removable media.

[0034] As shown in Figure 1, the storage unit 12 further stores the manufacturer database 21, the transporter database 22, the user database 23, the emission factor database 24, and the quantification rule CR that has been set. Hereinafter, the manufacturer database 21 may be referred to as "manufacturer DB21", the transporter database 22 as "transporter DB22", the user database 23 as "user DB23", and the emission factor database 24 as "emission factor DB24". When the management device 10 manages multiple supply chain SCs, the storage unit 12 stores a quantification rule CR for each supply chain SC.

[0035] The manufacturer DB21 stores information about sensors received from the first terminal device 2C1 and information about specified items received from the first terminal device 2C1. For example, if the specified items include an item that specifies calculating GHG emissions by multiplying the activity level by an emission factor, the activity level of manufacturer C1 is stored in the manufacturer DB21. Furthermore, the GHG emissions calculated by multiplying the activity level by the emission factor are stored in the manufacturer DB21. If the specified items include an item that specifies calculating the measured value of GHG emissions, the GHG emissions directly measured by the sensor are stored in the manufacturer DB21. The transporter DB22 and user DB23 also store the same information as the manufacturer DB21. Hereinafter, the GHG emissions calculated by multiplying the activity level by an emission factor may be referred to as the "calculated value of GHG emissions." Note that the quantification rule CR may be stored in the manufacturer DB21, transporter DB22, and user DB23.

[0036] The emission factor DB24 stores the GHG emission quantification target and emission factor in association with each other. The GHG emission quantification target indicates the source of GHG emissions. Specifically, the quantification target indicates the source of GHG emissions. The emission factor is an example of "a value used to quantify GHG emissions." In the following text, the GHG emission quantification target may be referred to as "quantification target."

[0037] The processing unit 13 is electrically connected to the communication unit 11 and the storage unit 12. The processing unit 13 executes a computer program stored in the storage unit 12 to perform various processes. The configuration in which the processing unit 13 executes a computer program stored in the storage unit 12 is one example of a processing circuit. For example, the processing unit 13 may have at least one of a general-purpose processor, a dedicated processor, an integrated circuit, and an ASIC (Application Specific Integrated Circuits).

[0038] More specifically, the processing unit 13 stores the quantification rule CR that it has received, information regarding the specified items, and information regarding the sensors in the storage unit 12. Furthermore, if the specified items include an item that specifies the calculation of the GHG emission amount, the processing unit 13 calculates the GHG emission amount and stores it in the storage unit 12. If the specified items include an item that specifies the calculation of the measured GHG emission amount, the information regarding the specified items includes the measured GHG emission amount.

[0039] For example, the processing unit 13 stores information on specified items received from the first terminal device 2C1 and information on sensors received from the first terminal device 2C1 in the manufacturer DB 21. If the specified items include an item that specifies the calculation of GHG emissions, the processing unit 13 calculates the GHG emissions based on the activity amount information received from the first terminal device 2C1 and the emission factors stored in the emission factor DB 24, and stores the calculated result in the manufacturer DB 21.

[0040] Next, an example of the processing performed by the processing unit 13 will be described with reference to Figure 2. Figure 2 is a flowchart showing the flow of processing performed by the processing unit 13 included in the management device 10 of this embodiment. Specifically, Figure 2 shows the process of calculating the calculated value of GHG emissions. The processing shown in Figure 2 includes steps S1, S2, and S3. The processing shown in Figure 2 starts by receiving activity level information from the terminal device 2.

[0041] As shown in FIG. 2, when the processing unit 13 receives activity amount information from the terminal device 2, it executes preprocessing in step S1. Specifically, the processing unit 13 removes abnormal values from the received activity amount information. Furthermore, when part of the necessary data is not included in the received activity amount information, the processing unit 13 executes a predetermined interpolation process to interpolate the missing data. For example, the processing unit 13 may execute linear interpolation processing or spline interpolation processing to interpolate the missing data. Alternatively, the processing unit 13 may interpolate the value of the missing data with the maximum value.

[0042] In step S2, the processing unit 13 calculates GHG emissions based on the preprocessed activity amount information. Specifically, the processing unit 13 refers to the emission factor DB 24, and calculates the GHG emissions by multiplying the preprocessed activity amount by the emission factor.

[0043] In step S3, the processing unit 13 causes the storage unit 12 to store the calculated GHG emissions. As a result, the processing shown in FIG. 2 ends. For example, when the processing unit 13 receives activity amount information from the first terminal device 2C1, it stores the calculation result in the manufacturer DB 21.

[0044] Next, the management device 10 of the present embodiment will be described with reference to FIG. 3. FIG. 3 is a block diagram showing the configuration of the management device 10 of the present embodiment.

[0045] As shown in FIG. 3, in the present embodiment, the storage unit 12 stores a first emission factor DB 241 and a second emission factor DB 242 as the emission factor DB 24. In the present embodiment, the emission factors stored in the first emission factor DB 241 are an example of a "first value". The emission factors stored in the second emission factor DB 242 are an example of a "second value".

[0046] At least part of the emission factors stored in the first emission factor DB 241 differ from the emission factors stored in the second emission factor DB 242. For example, some of the plurality of quantification targets stored in the first emission factor DB 241 may not be stored in the second emission factor DB 242. Further, among the quantification targets common to the first emission factor DB 241 and the second emission factor DB 242, the values of some emission factors may differ between the first emission factor DB 241 and the second emission factor DB 242. For example, the first emission factor DB 241 may be "LCI database IDEA". The second emission factor DB 242 may be the "List of Emission Factors" provided by the Ministry of the Environment of Japan.

[0047] In the present embodiment, the storage unit 12 further stores, as quantification rules CR for GHG emissions, a first quantification rule CR1 and a second quantification rule CR2. The first quantification rule CR1 is a quantification rule CR different from the second quantification rule CR2. Here, the second quantification rule CR2 is a quantification rule CR that has been received before the first quantification rule CR1.

[0048] As shown in FIG. 3, in the present embodiment, the quantification rule CR specifies the scope of a business operator, a plurality of quantification targets, a quantification method for GHG emissions, and emission categories.

[0049] The scope of the business operator indicates the scope of the business operator for which GHG emissions are taken into consideration. For example, if the quantification rule CR specifies that only the hydrogen production stage is within the scope of the business operator, the management device 10 manages only the amount of GHG emitted by the activity of the manufacturer C1 as the amount of GHG emitted from the supply chain SC. If the quantification rule CR specifies that the scope of the business operator ranges from the hydrogen production stage to the final utilization stage, the management device 10 manages, as the amount of GHG emitted from the supply chain SC, the amount of GHG emitted by the activity of the manufacturer C1, the amount of GHG emitted by the activity of the transporter C2, and the amount of GHG emitted by the activity of the user C3.

[0050] The method for quantifying GHG emissions describes a method for quantifying GHG emissions. For example, the method for quantifying GHG emissions describes either a method for calculating GHG emissions based on activity levels and emission factors for each quantification target, or a method for directly measuring GHG emissions using sensors. Hereinafter, the method for calculating GHG emissions based on activity levels and emission factors may be referred to as "the method for calculating GHG emissions."

[0051] Emission categories are indicators used to classify GHG emission sources. Specifically, the quantification rule CR specifies that multiple quantification targets are classified by emission category. The processing unit 13 assigns an emission category to each quantification target according to the quantification rule CR.

[0052] Next, with reference to Figure 4, the determination process executed by the processing unit 13 will be described. Figure 4 is a flowchart showing the flow of the determination process executed by the processing unit 13 included in the management device 10 of this embodiment. In this embodiment, the management method is implemented by the processing unit 13 executing the process shown in Figure 4. Therefore, Figure 4 shows the "management method" of this embodiment.

[0053] The process shown in Figure 4 includes steps S11, S12, and S13. The process shown in Figure 4 starts when setting data for setting the first quantification rule CR1 is input while the second quantification rule CR2 is set.

[0054] As shown in Figure 4, when setting data for setting the first quantification rule CR1 is input while the second quantification rule CR2 is set, the processing unit 13 accepts the setting of the first quantification rule CR1 (step S11). In this embodiment, when the processing unit 13 accepts the setting of the first quantification rule CR1, it changes the quantification rule CR from the second quantification rule CR2 to the first quantification rule CR1.

[0055] When the processing unit 13 receives the setting of the first quantification rule CR1, it determines whether or not there is a difference between the first quantification rule CR1 and the second quantification rule CR2 (step S12).

[0056] If the processing unit 13 determines that there is a difference between the first quantification rule CR1 and the second quantification rule CR2 (Yes in step S12), it sends a notification via the communication unit 11 indicating the difference between the first quantification rule CR1 and the second quantification rule CR2 (step S13). As a result, the determination process shown in Figure 4 is completed. More specifically, a message indicating the difference between the first quantification rule CR1 and the second quantification rule CR2 is sent from the communication unit 11 to each terminal device 2.

[0057] On the other hand, if the processing unit 13 determines that there is no difference between the first quantification rule CR1 and the second quantification rule CR2 (No. in step S12), it terminates the determination process shown in Figure 4 without issuing a notification.

[0058] Specifically, items specified in the first quantification rule CR1 that are not included in the second quantification rule CR2 are notified to each terminal device 2. In addition, items common to both the first quantification rule CR1 and the second quantification rule CR2, but with different content, are notified to each terminal device 2. Therefore, items that are common to both the first quantification rule CR1 and the second quantification rule CR2 are not notified.

[0059] As explained above with reference to Figure 4, according to this embodiment, the differences between the first quantification rule CR1 and the second quantification rule CR2 can be notified to each business operator constituting the hydrogen supply chain SC. Therefore, the items that need to be addressed can be clarified to the person in charge of quantifying GHG emissions. As a result, for items that overlap between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be made free to do no work. Therefore, compared to the case where the person in charge is responsible for all items of the first quantification rule CR1, the amount of work and man-hours required for the person in charge can be reduced, thereby alleviating the burden on the person in charge.

[0060] In addition, in the notification processes included in Figures 6, 8 through 13, 15, 16, and 18, messages are sent from the communication unit 11 to each terminal device 2, similar to step S13 in Figure 4. In the explanations of the processes in Figures 6, 8 through 13, 15, 16, and 18, detailed explanations of the notification destinations may be omitted.

[0061] Next, with reference to Figure 5, the items to be quantified for GHG emissions will be explained. Figure 5 is a diagram showing an example of a quantification target table TA stored in the storage unit 12 included in the management device 10 of this embodiment. Specifically, Figure 5 shows the quantification target table TA1 for quantification rule A, the quantification target table TA2 for quantification rule B, and the quantification target table TA3 for quantification rule C. As shown in Figure 5, the quantification target table TA shows multiple quantification targets specified in quantification rule CR. The quantification targets are examples of specified items.

[0062] The quantification target table TA1 shows multiple quantification targets defined in quantification rule A. Specifically, the quantification targets in quantification rule A include GHG emissions originating from the electricity consumption of hydrogen production equipment, GHG emissions originating from the electricity consumption of the administration building, etc., GHG emissions originating from diesel fuel consumed as fuel, GHG emissions originating from natural gas consumed as a raw material for hydrogen, and GHG emissions originating from natural gas consumed as fuel.

[0063] Table TA2, which lists the items to be quantified, shows several items defined in quantification rule B. Specifically, the items to be quantified in quantification rule B include GHG emissions from the power consumption of hydrogen production equipment, GHG emissions from the power consumption of compressors, GHG emissions from the power consumption of administration buildings, etc., GHG emissions from diesel fuel consumed as fuel, GHG emissions from natural gas consumed throughout the facility, GHG emissions from natural gas consumed as a raw material for hydrogen, GHG emissions from natural gas consumed as fuel, GHG emissions from steam consumption, fluorocarbon emissions, methane emissions, and GHG emissions from fuel consumed for truck transportation.

[0064] A compressor is equipment that compresses hydrogen gas to produce compressed hydrogen. The total natural gas consumed by the entire facility includes natural gas consumed as a raw material for hydrogen and natural gas consumed as fuel.

[0065] The quantification target table TA3 shows multiple quantification targets defined in quantification rule C. Specifically, the quantification targets in quantification rule C include GHG emissions from the total electricity consumption of the facility, GHG emissions from diesel fuel consumed as fuel, GHG emissions from natural gas consumed throughout the facility, fluorocarbon emissions, methane emissions, and GHG emissions from fuel consumed for truck transport.

[0066] As illustrated in Figure 5, the objects to be quantified may differ depending on the quantification rule CR. For example, under quantification rule A, it is necessary to quantify both the GHG emissions from the power consumption of the hydrogen production equipment and the GHG emissions from the power consumption of the administration building, etc., as GHG emissions originating from electricity consumption. In contrast, under quantification rule C, it is sufficient to quantify the GHG emissions originating from the power consumption of the entire facility. Furthermore, under quantification rule A, it is not necessary to quantify GHG emissions originating from steam consumption, whereas under quantification rule B, it is necessary to quantify GHG emissions originating from steam consumption. Also, under quantification rule A, it is not necessary to quantify the emissions of fluorocarbons and methane, whereas under quantification rules B and C, it is necessary to quantify the emissions of fluorocarbons and methane.

[0067] Next, with reference to Figure 6, the first determination process executed by the processing unit 13 will be described. Figure 6 is a flowchart showing the flow of the first determination process executed by the processing unit 13 included in the management device 10 of this embodiment.

[0068] The first determination process shown in Figure 6 includes steps S21 and S22. The first determination process is included in the determination process described with reference to Figure 4. Therefore, the first determination process starts when setting data for setting the first quantification rule CR1 is input while the second quantification rule CR2 is set.

[0069] As shown in Figure 6, when the processing unit 13 starts the first determination process, it determines whether there is a difference between the multiple quantification targets defined in the first quantification rule CR1 and the multiple quantification targets defined in the second quantification rule CR2 (step S21). In the following, the multiple quantification targets defined in the first quantification rule CR1 may be referred to as "quantification targets of the first quantification rule CR1". Similarly, the multiple quantification targets defined in the second quantification rule CR2 may be referred to as "quantification targets of the second quantification rule CR2".

[0070] If the processing unit 13 determines that there is a difference between the quantification target of the first quantification rule CR1 and the quantification target of the second quantification rule CR2 (Yes in step S21), it notifies the processing unit 11 of the quantification targets that differ between the first quantification rule CR1 and the second quantification rule CR2 (step S22). As a result, the first determination process shown in Figure 6 is completed. Specifically, the processing unit 13 sends a message to each terminal device 2 indicating the difference in quantification targets between the first quantification rule CR1 and the second quantification rule CR2. The processing unit 13 does not send a notification for quantification targets of the first quantification rule CR1 that do not differ from those of the second quantification rule CR2.

[0071] On the other hand, if the processing unit 13 determines that there is no difference between the quantification target of the first quantification rule CR1 and the quantification target of the second quantification rule CR2 (No. in step S21), it terminates the first determination process shown in Figure 6 without issuing a notification.

[0072] For example, if quantification rule A shown in Figure 5 is the first quantification rule CR1, and quantification rule B shown in Figure 5 is the second quantification rule CR2, then each terminal device 2 is notified that it is unnecessary to quantify GHG emissions originating from the power consumption of the compressor, that it is unnecessary to quantify GHG emissions originating from natural gas consumed throughout the facility, that it is unnecessary to quantify GHG emissions originating from steam consumption, that it is unnecessary to quantify fluorocarbon emissions, that it is unnecessary to quantify methane emissions, and that it is unnecessary to quantify GHG emissions originating from fuel consumed for truck transport.

[0073] As explained above with reference to Figure 6, according to this embodiment, each business operator constituting the hydrogen supply chain SC can be notified of the quantification targets that differ between the first quantification rule CR1 and the second quantification rule CR2. Therefore, the items that need to be addressed can be clarified to the person in charge of quantifying GHG emissions. As a result, the workload and man-hours of the person in charge can be reduced compared to when the person in charge has to address all items of the first quantification rule CR1.

[0074] Next, the method for quantifying GHG emissions will be explained with reference to Figure 7. Figure 7 shows an example of a quantification method table TB stored in the storage unit 12 included in the management device 10 of this embodiment. Specifically, Figure 7 shows the quantification method table TB1 of quantification rule A.

[0075] As shown in Figure 7, the quantification method table TB specifies the quantification method for GHG emissions for each quantification target. The quantification method for GHG emissions is just one example of a specified item. For example, the quantification method table TB1 specifies the quantification method for GHG emissions for each quantification target of quantification rule A.

[0076] Specifically, the method for quantifying GHG emissions specifies whether GHG emissions are determined by calculation or by direct measurement. Furthermore, the method for quantifying GHG emissions specifies the types of values ​​used in quantifying GHG emissions.

[0077] The types of values ​​used to quantify GHG emissions include the types of emission factors. Specifically, the types of emission factors include primary data emission factors and secondary data emission factors. Therefore, the method for quantifying GHG emissions specifies whether to use primary data emission factors or secondary data emission factors to calculate the GHG emissions to be quantified. Furthermore, the types of values ​​used to quantify GHG emissions include the types of emission factor databases. Specifically, the method for quantifying GHG emissions specifies the type of emission factor database for the target of quantification in which GHG emissions are calculated using secondary data emission factors.

[0078] Furthermore, the types of values ​​used to quantify GHG emissions include types of activity levels. Specifically, the types of activity levels include activity levels measured by sensors and activity levels obtained by means other than sensors. Therefore, the method for quantifying GHG emissions specifies whether to use activity levels measured by sensors or activity levels obtained by means other than sensors to quantify the GHG emissions to be quantified. Activity levels obtained by means other than sensors include, for example, activity levels obtained from receipts.

[0079] Furthermore, the Quantification Rules CR may not specify some or all of the methods for quantifying GHG emissions. In such cases, the items not specified in the Quantification Rules CR will be determined at the discretion of the person in charge.

[0080] For example, as shown in Figure 7, the quantification method table TB1 specifies that GHG emissions are calculated for each quantification target. Specifically, the quantification method table TB1 specifies that GHG emissions are calculated by multiplying the activity amount by the emission factor for each quantification target. Therefore, under quantification rule A, it is necessary to obtain the following as activity amounts: the electricity consumption of the hydrogen production equipment, the electricity consumption of the administration building, etc., the consumption of diesel fuel used as fuel, the consumption of natural gas used as a raw material for hydrogen, and the consumption of natural gas used as fuel. Furthermore, the quantification method table TB1 specifies the type of emission factor database to be used to calculate GHG emissions for each quantification target. Specifically, the quantification method table TB1 indicates the name of the emission factor database for each quantification target.

[0081] Primary data emission factors are those independently defined by companies based on data they have measured themselves. Secondary data emission factors are those defined based on industry averages, industry standards, estimated values, etc. Databases of secondary data emission factors include, for example, the "LCI Database IDEA" and the "List of Emission Factors" provided by the Ministry of the Environment of Japan.

[0082] Next, with reference to Figure 8, the second determination process executed by the processing unit 13 will be described. Figure 8 is a flowchart showing the flow of the second determination process executed by the processing unit 13 included in the management device 10 of this embodiment.

[0083] The second determination process shown in Figure 8 includes steps S31 and S32. The second determination process is included in the determination process described with reference to Figure 4. The second determination process is started after the completion of the first determination process described with reference to Figure 6.

[0084] More specifically, the processing unit 13 executes the second determination process on quantification targets that correspond to the quantification targets defined in the second quantification rule CR2, among the quantification targets defined in the first quantification rule CR1. In other words, the second determination process is executed on quantification targets that are common to both the first quantification rule CR1 and the second quantification rule CR2. If multiple quantification targets are common to both the first quantification rule CR1 and the second quantification rule CR2, the second determination process is executed for each common quantification target. Hereinafter, quantification targets common to both the first quantification rule CR1 and the second quantification rule CR2 may be referred to as "common quantification targets".

[0085] As shown in Figure 8, when the processing unit 13 starts the second determination process, it determines whether there is a difference in the method of quantifying GHG emissions related to the common quantification target between the first quantification rule CR1 and the second quantification rule CR2 (step S31). In the following, the method of quantifying GHG emissions related to the common quantification target may be referred to as the "quantification method for the common quantification target".

[0086] If the processing unit 13 determines that there is a difference in the quantification method for the common quantification target between the first quantification rule CR1 and the second quantification rule CR2 (Yes in step S31), it notifies the communication unit 11 that there is a difference in the quantification method for the common quantification target between the first quantification rule CR1 and the second quantification rule CR2 (step S32). As a result, the second determination process shown in Figure 8 is completed.

[0087] On the other hand, if the processing unit 13 determines that there is no difference in the quantification method of the common quantification target between the first quantification rule CR1 and the second quantification rule CR2 (No. in step S31), it terminates the second determination process shown in Figure 8 without issuing a notification.

[0088] For example, if the first quantification rule CR1 is quantification rule A shown in Figure 5, and the second quantification rule CR2 is quantification rule C shown in Figure 5, then the GHG emissions derived from diesel fuel consumed as fuel are the common quantification target between quantification rule A and quantification rule C. Hereinafter, GHG emissions derived from diesel fuel consumed as fuel may be referred to as "GHG emissions derived from diesel fuel consumption."

[0089] If GHG emissions from diesel fuel consumption are a common quantification target, the processing unit 13 determines whether the quantification method for GHG emissions from diesel fuel consumption is the same between quantification rule A and quantification rule C. If quantification rule C requires that GHG emissions from diesel fuel consumption be measured directly by a sensor, the processing unit 13 notifies that, for example, the quantification method for GHG emissions from diesel fuel consumption needs to be changed from a method of direct measurement by a sensor to a method of calculating GHG emissions based on activity level and emission coefficient.

[0090] One method for directly measuring GHG emissions derived from diesel fuel consumption using sensors is, for example, to measure the amount of GHG emitted from the duct outlet using sensors.

[0091] As explained above with reference to Figure 8, according to this embodiment, it is possible to notify each business operator constituting the hydrogen supply chain SC of the items to be quantified where there are differences in the quantification method between the first quantification rule CR1 and the second quantification rule CR2. Therefore, it is possible to clarify the items that require attention to the person in charge of quantifying GHG emissions.

[0092] Next, the details of the second decision process will be explained with reference to Figures 9 to 13. As shown in Figures 9 to 13, the second decision process includes processes 1 through 5.

[0093] Figure 9 is a flowchart showing the flow of the first process executed by the processing unit 13 included in the management device 10 of this embodiment. The first process shown in Figure 9 includes steps S41, S42, S43, and S44. The first process is started after the completion of the first determination process described with reference to Figure 6. Specifically, the processing unit 13 selects one of the quantification targets (common quantification targets) that are common to both the first quantification rule CR1 and the second quantification rule CR2, and starts the first process for the selected quantification target. In the following, the quantification target selected from the common quantification targets may be referred to as the "selected quantification target".

[0094] As shown in Figure 9, when the first processing starts, the processing unit 13 determines whether the quantification method for the selected quantification target in the first quantification rule CR1 is a method of directly measuring GHG emissions using a sensor (step S41). In the following, the method of directly measuring GHG emissions using a sensor may be referred to as the "direct measurement method".

[0095] If the processing unit 13 determines that the quantification method for the selected quantification target in the first quantification rule CR1 is a direct measurement method (Yes in step S41), it determines whether or not the quantification method for the selected quantification target in the second quantification rule CR2 is a direct measurement method (step S42).

[0096] If the processing unit 13 determines that the quantification method for the selected quantification target in the second quantification rule CR2 is not a direct measurement method (No. in step S42), it notifies that the quantification method for the selected quantification target needs to be changed from a method that calculates GHG emissions to a method that directly measures GHG emissions using a sensor (step S43). As a result, the second determination process for the selected common quantification target is completed.

[0097] On the other hand, if the processing unit 13 determines that the quantification method for the selected quantification target in the second quantification rule CR2 is the direct measurement method (Yes in step S42), it terminates the second determination process for the selected common quantification target without issuing a notification.

[0098] When the processing unit 13 finishes the second determination process for the selected common quantification target, it determines whether there are any quantification targets remaining among the common quantification targets that have not undergone the second determination process. If the processing unit 13 determines that there are any quantification targets remaining among the common quantification targets that have not undergone the second determination process, it selects one of the remaining common quantification targets and starts the second determination process. On the other hand, if the processing unit 13 determines that there are no quantification targets remaining among the common quantification targets that have not undergone the second determination process, it terminates the second determination process.

[0099] In addition, in the second process shown in Figure 10, the third process shown in Figure 11, the fourth process shown in Figure 12, and the fifth process shown in Figure 13, similar to the first process, the processing unit 13, after completing the second determination process for the selected common quantification targets, selects quantification targets from the common quantification targets for which the second determination process has not yet been performed and starts the second determination process. Then, the processing unit 13 terminates the second determination process when it determines that the second determination process has been performed for all common quantification targets. In the explanations of each process shown in Figures 10 to 13, the explanation of the process performed by the processing unit 13 after completing the second determination process for the selected quantification targets may be omitted.

[0100] As shown in Figure 9, if the processing unit 13 determines that the quantification method for the selected quantification target in the first quantification rule CR1 is not a direct measurement method (No. in step S41), it determines whether or not the quantification method for the selected quantification target in the second quantification rule CR2 is a direct measurement method (step S44).

[0101] If the processing unit 13 determines that the quantification method for the selected quantification target in the second quantification rule CR2 is not a direct measurement method (No in step S44), it performs the second process shown in Figure 10 on the selected quantification target. On the other hand, if the processing unit 13 determines that the quantification method for the selected quantification target in the second quantification rule CR2 is a direct measurement method (Yes in step S44), it performs the third process shown in Figure 11 on the selected quantification target.

[0102] Figure 10 is a flowchart showing the flow of the second process executed by the processing unit 13 included in the management device 10 of this embodiment. The second process shown in Figure 10 includes steps S51, S52, S53, and S54. The second process is executed when the quantification method for the selected quantification target in both the first quantification rule CR1 and the second quantification rule CR2 is a method for calculating GHG emissions.

[0103] As shown in Figure 10, when the second processing starts, the processing unit 13 determines whether the emission factor used to calculate the GHG emissions to be selected for quantification in the first quantification rule CR1 is the emission factor of the primary data (step S51). In the following, the emission factor used to calculate the GHG emissions to be selected for quantification may be referred to as the "emission factor to be determined".

[0104] If the processing unit 13 determines that the emission coefficient to be judged in the first quantification rule CR1 is the emission coefficient of the primary data (Yes in step S51), it determines whether or not the emission coefficient to be judged in the second quantification rule CR2 is the emission coefficient of the primary data (step S52).

[0105] If the processing unit 13 determines that the emission coefficient to be judged in the second quantification rule CR2 is not the emission coefficient of the primary data (No. in step S52), it notifies via the communication unit 11 that there is a difference in the type of value used to quantify GHG emissions between the first quantification rule CR1 and the second quantification rule CR2 (step S53), and terminates the second judgment process for the selected common quantification target. Specifically, the processing unit 13 notifies that it is necessary to use the emission coefficient of the primary data in calculating the GHG emissions of the selected quantification target. For example, if, due to a change from the second quantification rule CR2 to the first quantification rule CR1, it is necessary to change the emission coefficient used to calculate the GHG emissions derived from nitrogen consumed as a raw material for hydrogen from the emission coefficient of the secondary data to the emission coefficient of the primary data, the processing unit 13 notifies that it is necessary to use the emission coefficient of the primary data in calculating the GHG emissions derived from nitrogen consumed as a raw material for hydrogen.

[0106] On the other hand, if the processing unit 13 determines that the emission coefficient to be judged in the second quantification rule CR2 is the emission coefficient of the primary data (Yes in step S52), it terminates the second judgment process for the selected common quantification target without issuing a notification.

[0107] Furthermore, if the processing unit 13 determines that the emission coefficient to be judged in the first quantification rule CR1 is not the emission coefficient of the primary data (No. in step S51), it determines whether or not the emission coefficient to be judged in the second quantification rule CR2 is the emission coefficient of the primary data (step S54).

[0108] If the processing unit 13 determines that the emission coefficient to be judged in the second quantification rule CR2 is the emission coefficient of the primary data (Yes in step S54), it executes the fourth process shown in Figure 12 on the selected quantification target. On the other hand, if the processing unit 13 determines that the emission coefficient to be judged in the second quantification rule CR2 is not the emission coefficient of the primary data (No in step S54), it executes the fifth process shown in Figure 13 on the selected quantification target.

[0109] Figure 11 is a flowchart showing the flow of the third process executed by the processing unit 13 included in the management device 10 of this embodiment. The third process shown in Figure 11 includes steps S61 and S62. The third process is executed when the quantification method for the selected quantification target in the first quantification rule CR1 is a method for calculating GHG emissions, and the quantification method for the selected quantification target in the second quantification rule CR2 is a direct measurement method.

[0110] As shown in Figure 11, when the third processing starts, the processing unit 13 determines whether the emission coefficient to be judged in the first quantification rule CR1 is the emission coefficient of the primary data (step S61).

[0111] If the processing unit 13 determines that the emission coefficient to be determined in the first quantification rule CR1 is the emission coefficient of the primary data (Yes in step S61), it notifies via the communication unit 11, similar to step S53 in Figure 10, that it is necessary to use the emission coefficient of the primary data to calculate the GHG emissions of the selected quantification target (step S62), and terminates the third processing for the selected common quantification target.

[0112] On the other hand, if the processing unit 13 determines that the emission coefficient to be judged in the first quantification rule CR1 is not the emission coefficient of the primary data (No. in step S61), it executes the fourth process shown in Figure 12 on the selected quantification target.

[0113] Figure 12 is a flowchart showing the flow of the fourth process executed by the processing unit 13 included in the management device 10 of this embodiment. The fourth process shown in Figure 12 includes steps S71, S72, S73, and S74. The fourth process is executed when the emission coefficient of secondary data is used to calculate the GHG emissions targeted for selective quantification by the first quantification rule CR1, but the emission coefficient of secondary data is not used to quantify the GHG emissions targeted for selective quantification by the second quantification rule CR2.

[0114] As shown in Figure 12, when the processing unit 13 starts the fourth process, it determines whether or not the emission factor database used to calculate the GHG emissions of the selected quantification targets specified in the first quantification rule CR1 is stored in the storage unit 12 (step S71). Hereinafter, the emission factor database used to calculate the GHG emissions of the selected quantification targets specified in the first quantification rule CR1 may be referred to as the "emission factor database specified in the first quantification rule CR1". Similarly, the emission factor database used to calculate the GHG emissions of the selected quantification targets specified in the second quantification rule CR2 may be referred to as the "emission factor database specified in the second quantification rule CR2".

[0115] Specifically, the processing unit 13 determines whether the emission factor DB 24 includes the emission factor database specified in the first quantification rule CR1. For example, in the example shown in Figure 3, the processing unit 13 determines whether either the first emission factor DB 241 or the second emission factor DB 242 corresponds to the emission factor database specified in the first quantification rule CR1.

[0116] If the processing unit 13 determines that the emission factor database specified in the first quantification rule CR1 is stored in the storage unit 12 (Yes in step S71), it searches for an emission factor corresponding to the selected quantification target from among the emission factors stored in the emission factor DB 24. Then, the processing unit 13 sets the value of the searched emission factor to be used for calculating the GHG emissions of the selected quantification target (step S72).

[0117] When the processing unit 13 sets the value of the emission factor it searched for as the value of the emission factor used to calculate the GHG emissions of the selected quantifiable target, it sends a notification via the communication unit 11 indicating that the value of the emission factor it searched for from the emission factor DB 24 has been set as the value of the emission factor used to calculate the GHG emissions of the selected quantifiable target, and the value of the emission factor it set (step S73). Then, the processing unit 13 finishes the second determination process for the selected common quantifiable target.

[0118] On the other hand, if the processing unit 13 determines that the emission factor database specified in the first quantification rule CR1 is not stored in the storage unit 12 (No. in step S71), it issues a notification requesting input of the emission factor used to calculate the GHG emissions of the selected quantification target (step S74). Then, the processing unit 13 terminates the second determination process for the selected common quantification target.

[0119] Figure 13 is a flowchart showing the flow of the fifth process executed by the processing unit 13 included in the management device 10 of this embodiment. The fifth process shown in Figure 13 includes steps S81, S82, S83, S84, and S85. The fifth process is executed when the emission coefficient of secondary data is used to calculate the GHG emissions to be quantified for both the first quantification rule CR1 and the second quantification rule CR2.

[0120] As shown in Figure 13, when the fifth process is started, the processing unit 13 determines whether or not it is necessary to change the emission factor database (step S81). Specifically, the processing unit 13 determines whether or not the type of emission factor database used to calculate the GHG emissions to be quantified matches between the first quantification rule CR1 and the second quantification rule CR2.

[0121] If the processing unit 13 determines that it is necessary to change the emission factor database (Yes in step S81), it determines whether the emission factor database specified in the first quantification rule CR1 is stored in the storage unit 12, similar to step S71 in Figure 12 (step S82).

[0122] If the processing unit 13 determines that the emission factor database specified in the first quantification rule CR1 is stored in the storage unit 12 (Yes in step S82), it sets the value of the found emission factor to the value of the emission factor used to calculate the GHG emissions of the selected quantification target, similar to step S72 in Figure 12 (step S83). Then, the processing unit 13 issues a notification similar to step S73 in Figure 12 (step S84) and terminates the second determination process for the selected common quantification target.

[0123] On the other hand, if the processing unit 13 determines that the emission coefficient database specified in the first quantification rule CR1 is not stored in the storage unit 12 (No. in step S82), it issues a notification similar to that in step S74 of Figure 12 (step S85) and terminates the second determination process for the selected common quantification target.

[0124] Furthermore, if the processing unit 13 determines that it is not necessary to change the emission coefficient database (No. in step S81), it terminates the second determination process for the selected common quantification target without issuing a notification.

[0125] For example, if the emission factor database specified in the first quantification rule CR1 corresponds to the first emission factor DB241, and the emission factor database specified in the second quantification rule CR2 corresponds to the second emission factor DB242, the processing unit 13 changes the emission factor database used to calculate the GHG emissions subject to selective quantification from the second emission factor DB242 to the first emission factor DB241 (step S83). Then, the processing unit 13 notifies via the communication unit 11 that the emission factor database used to calculate the GHG emissions subject to selective quantification has been changed from the second emission factor DB242 to the first emission factor DB241.

[0126] Therefore, according to this embodiment, when the database of emission factors specified in the first quantification rule CR1 is stored in the storage unit 12, the processing unit 13 changes the settings of the database of emission factors used to calculate GHG emissions. This reduces the workload and man-hours required of the person in charge of quantifying GHG emissions compared to the case where the person in charge is responsible for all items of the first quantification rule CR1. Furthermore, according to this embodiment, when changing the value of the emission factor used to quantify GHG emissions, the possibility of the person in charge mistakenly setting a value different from the value that should be set is reduced. Therefore, the man-hours that may be incurred due to rework can be reduced.

[0127] Next, the GHG emission quantification rule CR will be explained with reference to Figure 14. Figure 14 is a diagram showing an example of the acquisition criteria table TC stored in the storage unit 12 included in the management device 10 of this embodiment. Specifically, Figure 14 shows the acquisition criteria table TC1 for power consumption of quantification rule D, the acquisition criteria table TC2 for power consumption of quantification rule E, the acquisition criteria table TC3 for power consumption of quantification rule F, and the acquisition criteria table TC3 for power consumption of quantification rule G. Power consumption is an example of activity level.

[0128] The method for quantifying GHG emissions specified in the quantification rule CR further specifies the criteria for acquiring activity levels. The criteria for acquiring activity levels are an example of specified items. For example, as shown in Figure 14, the criteria for acquiring activity levels include the method for acquiring activity levels, the activity level acquisition cycle, the measurement accuracy of the sensor, and the mounting position of the sensor. The activity level acquisition cycle indicates the cycle in which the processing unit 13 acquires activity levels. Specifically, the activity level acquisition cycle indicates the cycle in which the processing unit 13 calculates GHG emissions using the activity levels. The activity level acquisition cycle may differ from the cycle in which activity level information is transmitted from the terminal device 2 to the management device 10. The measurement accuracy of the sensor and the mounting position of the sensor are set in relation to the activity levels measured by the sensor.

[0129] For example, acquisition criteria table TC1 shows the acquisition criteria for power consumption as defined in quantification rule D. Specifically, acquisition criteria table TC1 specifies that the acquisition criteria for power consumption include acquiring power consumption from a sensor, the processing unit 13 acquiring power consumption at intervals of 30 minutes or less and calculating GHG emissions, using a sensor with an error of 3% or less, and installing a sensor at the facility's power receiving unit.

[0130] The acquisition criteria table TC2 shows the acquisition criteria for power consumption as defined in quantification rule E. Specifically, the acquisition criteria table TC2 specifies that the acquisition criteria for power consumption include acquiring power consumption from a sensor, the processing unit 13 acquiring power consumption at intervals of one day or less to calculate GHG emissions, using a sensor with an error of 1% or less, and installing a sensor at the facility's power receiving unit.

[0131] The acquisition criteria table TC3 shows the acquisition criteria for power consumption as defined in quantification rule F. Specifically, the acquisition criteria table TC3 specifies that the acquisition criteria for power consumption include acquiring power consumption from a sensor, the processing unit 13 acquiring power consumption at intervals of one day or less to calculate GHG emissions, using a sensor with an error of 1% or less, and attaching a sensor to the equipment input.

[0132] Acquisition criteria table TC4 shows the acquisition criteria for power consumption as defined in quantification rule G. Specifically, acquisition criteria table TC4 specifies that the acquisition criteria for power consumption include acquiring power consumption by referring to receipts, the processing unit 13 acquiring power consumption on a monthly cycle and calculating GHG emissions, using sensors as stipulated by contract, and installing sensors at the facility's power receiving unit.

[0133] As illustrated in Figure 14, the criteria for acquiring activity levels may differ depending on the quantification rule CR. For example, under quantification rule D, the acquisition cycle for power consumption is within 30 minutes, while under quantification rule E, it is within 1 day. Also, under quantification rule D, it is sufficient to use a sensor with an error of 3% or less, while under quantification rule E, a sensor with an error of 1% or less is required. Furthermore, under quantification rule D, power consumption is acquired from a sensor, while under quantification rule G, power consumption is acquired from receipts.

[0134] Next, with reference to Figure 15, the third determination process executed by the processing unit 13 will be described. Figure 15 is a flowchart showing the flow of the third determination process executed by the processing unit 13 included in the management device 10 of this embodiment. The third determination process is executed when the quantification method for the selected quantification target is a method for calculating GHG emissions using both the first quantification rule CR1 and the second quantification rule CR2. In other words, the third determination process is executed when the quantification method for the selected quantification target is a method for calculating GHG emissions using activity levels in both the first quantification rule CR1 and the second quantification rule CR2.

[0135] The third determination process shown in Figure 15 includes steps S91 and S92. The third determination process is included in the determination process described with reference to Figure 4. The third determination process may be started, for example, after the completion of the second determination process.

[0136] As shown in Figure 15, when the processing unit 13 starts the third determination process, it determines whether there is a difference in the method of acquiring the activity amount related to the selected quantification target between the first quantification rule CR1 and the second quantification rule CR2 (step S91).

[0137] If the processing unit 13 determines that there is a difference in the method of acquiring the activity amount related to the selected quantification target between the first quantification rule CR1 and the second quantification rule CR2 (Yes in step S91), it notifies via the communication unit 11 that there is a difference in the method of acquiring the activity amount related to the selected quantification target between the first quantification rule CR1 and the second quantification rule CR2 (step S92), and terminates the third determination process for the selected quantification target. Specifically, the processing unit 13 notifies the method of acquiring the activity amount specified in the first quantification rule CR1.

[0138] On the other hand, if the processing unit 13 determines that there is no difference in the method of obtaining the activity amount related to the selected quantification target between the first quantification rule CR1 and the second quantification rule CR2 (No. in step S91), it terminates the third determination process for the selected quantification target without providing any notification.

[0139] For example, if the first quantification rule CR1 is quantification rule D shown in Figure 14, and the second quantification rule CR2 is quantification rule G shown in Figure 14, the processing unit 13 determines that there is a difference in the method of obtaining power consumption between the first quantification rule CR1 and the second quantification rule CR2 (Yes in step S91), and notifies that it is necessary to change the method of obtaining power consumption from a method of obtaining power consumption by referring to a receipt to a method of obtaining power consumption from a sensor (step S92).

[0140] Next, with reference to Figure 16, the fourth determination process executed by the processing unit 13 will be described. Figure 16 is a flowchart showing the flow of the fourth determination process executed by the processing unit 13 included in the management device 10 of this embodiment. The fourth determination process is executed when the quantification method for the selected quantification target is a method for calculating GHG emissions using both the first quantification rule CR1 and the second quantification rule CR2.

[0141] The fourth determination process shown in Figure 16 includes steps S101 and S102. The fourth determination process is included in the determination process described with reference to Figure 4. The fourth determination process may be started, for example, after the completion of the third determination process for the selected common quantification target.

[0142] As shown in Figure 16, when the processing unit 13 starts the fourth determination process, it determines whether the acquisition criteria for the activity amount related to the selected quantification target specified in the second quantification rule CR2 satisfy the acquisition criteria for the activity amount related to the selected quantification target specified in the first quantification rule CR1 (step S101). Hereinafter, the acquisition criteria for the activity amount related to the selected quantification target specified in the first quantification rule CR1 may be referred to as "acquisition criteria for the first quantification rule CR1". Similarly, the acquisition criteria for the activity amount related to the selected quantification target specified in the second quantification rule CR2 may be referred to as "acquisition criteria for the second quantification rule CR2".

[0143] If the processing unit 13 determines that the acquisition criteria for the second quantification rule CR2 do not meet the acquisition criteria for the first quantification rule CR1 (No. in step S101), it notifies the communication unit 11 that the acquisition criteria for the second quantification rule CR2 do not meet the acquisition criteria for the first quantification rule CR1 (step S102), and terminates the process shown in Figure 16.

[0144] On the other hand, if the processing unit 13 determines that the acquisition criteria for the second quantification rule CR2 meet the acquisition criteria for the first quantification rule CR1 (Yes in step S101), it terminates the process shown in Figure 16 without issuing a notification.

[0145] For example, if the first quantification rule CR1 is quantification rule E shown in Figure 14, and the second quantification rule CR2 is quantification rule D shown in Figure 14, the processing unit 13 determines that the power consumption acquisition cycle and sensor mounting position specified in the second quantification rule CR2 satisfy the acquisition criteria of the first quantification rule CR1. Furthermore, the processing unit 13 refers to pre-registered information about the sensor and determines whether the sensor's measurement accuracy is within an error of 1%. If the processing unit 13 determines that the sensor's measurement accuracy is within an error of 1%, it terminates the fourth determination process for power consumption without providing notification. On the other hand, if the processing unit 13 determines that the sensor's measurement accuracy is not within an error of 1%, it notifies the system via the communication unit 11 that the sensor needs to be changed.

[0146] Conversely, if the first quantification rule CR1 is quantification rule D shown in Figure 14, and the second quantification rule CR2 is quantification rule E shown in Figure 14, the processing unit 13 determines that the measurement accuracy of the sensor and the mounting position of the sensor specified in the second quantification rule CR2 satisfy the acquisition criteria of the first quantification rule CR1. Furthermore, the processing unit 13 refers to the pre-registered sensor information and determines whether the transmission cycle of the power consumption is within 30 minutes. If the processing unit 13 determines that the transmission cycle of the power consumption is within 30 minutes, it terminates the fourth determination process for power consumption without making a notification. On the other hand, if the processing unit 13 determines that the transmission cycle of the power consumption is not within 30 minutes, it notifies via the communication unit 11 that it is necessary to change the transmission cycle of the power consumption to a cycle of 30 minutes or less.

[0147] If the first quantification rule CR1 is quantification rule F shown in Figure 14, and the second quantification rule CR2 is quantification rule E shown in Figure 14, the processing unit 13 determines that the power consumption acquisition cycle and sensor measurement accuracy specified in the second quantification rule CR2 satisfy the acquisition criteria of the first quantification rule CR1. Furthermore, the processing unit 13 refers to the sensor information and determines whether the power consumption of the equipment input unit is acquired from the terminal device 2 in addition to the power consumption of the facility's power receiving unit. If the processing unit 13 determines that the power consumption of the equipment input unit is acquired from the terminal device 2 in addition to the power consumption of the facility's power receiving unit, it changes the activity data source from the power consumption of the facility's power receiving unit to the power consumption of the equipment input unit. The processing unit 13 then notifies via the communication unit 11 that the activity data source has been changed from the power consumption of the facility's power receiving unit to the power consumption of the equipment input unit. On the other hand, if the processing unit 13 determines that it has not obtained the power consumption of the device input unit from the terminal device 2, it notifies the terminal device 2 via the communication unit 11 that the power consumption of the device input unit is required.

[0148] If the first quantification rule CR1 is quantification rule G shown in Figure 14, and the second quantification rule CR2 is quantification rule E shown in Figure 14, the processing unit 13 determines that the sensor mounting position specified in the second quantification rule CR2 satisfies the acquisition criteria of the first quantification rule CR1. Furthermore, the processing unit 13 refers to the information on the sensor and determines whether the sensor currently in use is the same as the sensor specified in the contract. If the processing unit 13 determines that the sensor currently in use is the same as the sensor specified in the contract, it changes the period for calculating GHG emissions using power consumption to one month. The processing unit 13 then notifies via the communication unit 11 that the power consumption acquisition period has been changed to one month. On the other hand, if the processing unit 13 determines that the sensor that has been registered in advance is not the same as the sensor specified in the contract, it notifies via the communication unit 11 that a change in the sensor is necessary.

[0149] As explained with reference to Figures 14 to 16, according to this embodiment, the processing unit 13 determines whether there is a difference in the criteria for acquiring activity levels between the first quantification rule CR1 and the second quantification rule CR2 (steps S91 and S101), and if it determines that there is a difference in the criteria for acquiring activity levels, it notifies the processing unit 11 that there is a difference in the criteria for acquiring activity levels. Therefore, according to this embodiment, if there is a difference in the criteria for acquiring activity levels between the first quantification rule CR1 and the second quantification rule CR2, it is possible to notify the person in charge of quantifying GHG emissions that it is necessary to change the criteria for acquiring activity levels.

[0150] Furthermore, after completing the processes shown in Figures 15 and 16, the processing unit 13 selects quantification targets from the common quantification targets for which the third and fourth determination processes have not yet been performed, and then performs the third and fourth determination processes on the selected quantification targets. Then, when the processing unit 13 determines that the third and fourth determination processes have been performed on all common quantification targets, it terminates the third and fourth determination processes.

[0151] However, the third and fourth determination processes may be included within the second determination process. Specifically, if the quantification method for the selected quantification target is a method for calculating GHG emissions using both the first quantification rule CR1 and the second quantification rule CR2, the processing unit 13 may, after executing the second, third, and fourth determination processes in that order on the selected quantification target, select quantification targets from the common quantification targets for which the second, third, and fourth determination processes have not been performed, and then execute the second, third, and fourth determination processes on the selected quantification targets.

[0152] As described above with reference to Figures 10 to 16, in steps S51, S52 and S54 of Figure 10, step S61 of Figure 11, step S81 of Figure 13, and step S91 of Figure 15, the processing unit 13 determines whether there is a difference in the types of values ​​used to quantify GHG emissions between the first quantification rule CR1 and the second quantification rule CR2. If the processing unit 13 determines that there is a difference in the types of values ​​used to quantify GHG emissions between the first quantification rule CR1 and the second quantification rule CR2, it notifies via the communication unit 11 that there is a difference in the types of values ​​used to quantify GHG emissions between the first quantification rule CR1 and the second quantification rule CR2.

[0153] Therefore, according to this embodiment, if there is a difference in the types of values ​​used to quantify GHG emissions between the first quantification rule CR1 and the second quantification rule CR2, the person in charge of quantifying GHG emissions can be notified that it is necessary to change the types of values ​​used to quantify GHG emissions.

[0154] Next, with reference to Figure 17, the emission categories defined in the GHG emission quantification rule CR will be explained. Figure 17 is a diagram showing an example of the emission category table TD stored in the storage unit 12 included in the management device 10 of this embodiment. The emission category table TD shows the emission categories defined in the quantification rule CR. Specifically, Figure 17 shows the emission category table TD1 of quantification rule H and the emission category table TD2 of quantification rule J. Emission category table TD1 shows the emission categories defined in quantification rule H. Emission category table TD2 shows the emission categories defined in quantification rule J. The emission category is an example of a defined item.

[0155] The emission category table TD defines the correspondence between the quantifiable items and emission categories. For example, as shown in Figure 17, the emission category table TD defines the emission categories to be assigned to GHG emissions originating from consumed fuel, GHG emissions originating from consumed electricity, GHG emissions originating from consumed steam, methane emissions, and GHG emissions originating from nitrogen consumed as a raw material for hydrogen. GHG emissions originating from consumed fuel, GHG emissions originating from consumed electricity, GHG emissions originating from consumed steam, methane emissions, and GHG emissions originating from nitrogen consumed as a raw material for hydrogen are examples of multiple quantifiable items.

[0156] In the following, GHG emissions derived from consumed fuel may be referred to as "fuel consumption," GHG emissions derived from consumed electricity as "electricity consumption," GHG emissions derived from consumed steam as "steam consumption," methane emissions as "methane emissions," and GHG emissions derived from nitrogen consumed as a raw material for hydrogen as "nitrogen consumption."

[0157] In the example shown in Figure 17, emission category table TD1 specifies that fuel consumption is assigned the emission category "combustion," electricity consumption is assigned the emission category "Energy supply," steam consumption is assigned the emission category "Energy supply," methane emissions are assigned the emission category "fugitive," and nitrogen consumption is assigned the emission category "embodied." Therefore, quantification rule H specifies that electricity consumption and steam consumption are classified into the same emission category. Furthermore, quantification rule H classifies methane emissions as an event resulting from leakage.

[0158] In contrast, emission category table TD2 stipulates that fuel consumption is assigned the emission category "combustion," electricity consumption the emission category "electricity," steam consumption the emission category "steam," methane emissions the emission category "accumulated," and nitrogen consumption the emission category "input materials." Therefore, quantification rule J stipulates that electricity consumption and steam consumption are classified into different emission categories. Furthermore, quantification rule J classifies methane emissions as irregular emissions.

[0159] As illustrated in Figure 17, the method of classifying multiple quantifiable targets by emission category may differ depending on the quantification rule CR. Note that the nitrogen emission category "Input materials" specified in quantification rule J is the same category as the nitrogen emission category "embodied" specified in quantification rule H, although the names are different.

[0160] Next, with reference to Figure 18, the fifth determination process executed by the processing unit 13 will be described. Figure 18 is a flowchart showing the flow of the fifth determination process executed by the processing unit 13 included in the management device 10 of this embodiment.

[0161] The fifth determination process shown in Figure 18 includes steps S111, S112, S113, S114, S115, S116, and S117. The fifth determination process is included in the determination process described with reference to Figure 4. The fifth determination process is started after the completion of the first determination process. The fifth determination process may be started after the completion of the second, third, and fourth determination processes, or it may be started before the second, third, and fourth determination processes.

[0162] As shown in Figure 18, when the processing unit 13 starts the fifth determination process, it determines whether or not an emission category is defined in the first quantification rule CR1 (step S111).

[0163] If the processing unit 13 determines that an emission category is defined in the first quantification rule CR1 (Yes in step S111), it determines whether there is a difference in the classification method between the first quantification rule CR1 and the second quantification rule CR2 (step S112).

[0164] If the processing unit 13 determines that there is a difference in the classification method between the first quantification rule CR1 and the second quantification rule CR2 (Yes in step S112), it changes the method of classifying multiple quantification targets by discharge category from the classification method specified in the second quantification rule CR2 to the classification method specified in the first quantification rule CR1 (step S113).

[0165] More specifically, the processing unit 13 determines whether or not the emission category can be changed for each quantification target. Specifically, the processing unit 13 determines that the emission category can be changed for quantification targets that are common to the second quantification rule CR2 among the quantification targets defined in the first quantification rule CR1. On the other hand, if the quantification targets defined in the first quantification rule CR1 include non-corresponding quantification targets that are not common to the second quantification rule CR2, the processing unit 13 determines that the emission category cannot be changed for the emission categories of the non-corresponding quantification targets. Then, the processing unit 13 changes the emission categories of the quantification targets for which the emission category can be changed from the emission categories defined in the second quantification rule CR2 to the emission categories defined in the first quantification rule CR1.

[0166] After changing the discharge category, the processing unit 13 notifies via the communication unit 11 that there is a difference between the classification method specified in the first quantification rule CR1 and the classification method specified in the second quantification rule CR2 (step S114), and then terminates the process shown in Figure 18. Specifically, the processing unit 13 notifies that the discharge category subject to common quantification has been changed and the name of the changed discharge category. Furthermore, the processing unit 13 notifies that input of an incompatible discharge category subject to quantification is required.

[0167] On the other hand, if the processing unit 13 determines that there is no difference in the classification method between the first quantification rule CR1 and the second quantification rule CR2 (No. in step S112), it terminates the process shown in Figure 18 without issuing a notification.

[0168] Furthermore, if the processing unit 13 determines that no emission category is defined in the first quantification rule CR1 (No. in step S111), it determines whether or not an emission category is defined in the second quantification rule CR2 (step S115).

[0169] If the processing unit 13 determines that an emission category is defined in the second quantification rule CR2 (Yes in step S115), it deletes the emission category assigned to each quantification target based on the second quantification rule CR2 (step S116). Then, the processing unit 13 notifies via the communication unit 11 that the emission category assigned to each quantification target based on the second quantification rule CR2 has been deleted (step S117), and terminates the process shown in Figure 18.

[0170] On the other hand, if the processing unit 13 determines that no discharge category is specified in the second quantification rule CR2 (No. in step S115), it terminates the process shown in Figure 18 without issuing a notification.

[0171] Embodiments of the present disclosure have been described above with reference to Figures 1 to 18. According to this embodiment, the management device 10 manages GHG emissions, which are the amount of greenhouse gases emitted in the hydrogen supply chain SC. The GHG emission quantification rule CR includes a first quantification rule CR1 and a second quantification rule CR2 which is different from the first quantification rule CR1. The management device 10 comprises a communication unit 11 and a processing unit 13. The communication unit 11 functions as an input unit and inputs setting data for setting the quantification rule CR. The communication unit 11 functions as an output unit and outputs a predetermined notification. When the processing unit 13 receives the setting of the first quantification rule CR1, it determines whether there is a difference between the first quantification rule CR1 and the second quantification rule CR2 which was received before the first quantification rule CR1. If the processing unit 13 determines that there is a difference between the first quantification rule CR1 and the second quantification rule CR2, it activates the communication unit 11 as an output unit and sends a notification via the communication unit 11 indicating the difference between the first quantification rule CR1 and the second quantification rule CR2.

[0172] Therefore, according to this embodiment, for example, when the quantification rule CR is changed from the second quantification rule CR2 to the first quantification rule CR1, the differences between the first quantification rule CR1 and the second quantification rule CR2 are notified, making it possible to identify items that require action by the person in charge. As a result, for items that overlap between the first quantification rule CR1 and the second quantification rule CR2, the person in charge does not need to do any work. Thus, the burden on the person in charge can be reduced compared to when the person in charge is responsible for all items specified in the first quantification rule CR1.

[0173] Furthermore, if a GHG emissions reporting system is established in the country where the business operator resides, the person in charge needs to make various preparations to quantify GHG emissions in accordance with the quantification rule CR required by the GHG emissions reporting system, in addition to the quantification rule CR selected according to the market. For example, the Greenhouse Gas Emissions Calculation, Reporting, and Publication System is a known GHG emissions reporting system. In contrast, according to this embodiment, when it is necessary to respond to the quantification rule CR of the GHG emissions reporting system (first quantification rule CR1) in addition to the quantification rule CR selected according to the market (second quantification rule CR2), the difference between the quantification rule CR of the GHG emissions reporting system and the quantification rule CR selected according to the market can be notified. Therefore, according to this embodiment, the burden on the person in charge can be reduced when it is necessary to respond to both the quantification rule CR selected according to the market and the quantification rule CR of the GHG emissions reporting system.

[0174] Furthermore, according to this embodiment, the quantification rule CR specifies a method for quantifying GHG emissions. The GHG emission quantification method specifies the type of value used for quantifying GHG emissions. The processing unit 13 determines whether there is a difference in the type of value used for quantifying GHG emissions between the first quantification rule CR1 and the second quantification rule CR2. If the processing unit 13 determines that there is a difference in the type of value used for quantifying GHG emissions between the first quantification rule CR1 and the second quantification rule CR2, it causes the communication unit 11 to function as an output unit and notifies via the communication unit 11 that there is a difference in the type of value used for quantifying GHG emissions.

[0175] Therefore, according to this embodiment, if there is a difference in the types of values ​​used to quantify GHG emissions between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that it is necessary to change the types of values ​​used to quantify GHG emissions.

[0176] Furthermore, according to this embodiment, the management device 10 further includes a storage unit 12 that stores a first emission coefficient DB241, which is an example of a first value, and a second emission coefficient DB242, which is an example of a second value different from the first value, as values ​​used for quantifying GHG emissions. When the processing unit 13 receives the setting of the first quantification rule CR1, it changes the quantification rule CR from the second quantification rule CR2 to the first quantification rule CR1. If the value used for quantifying GHG emissions by the first quantification rule CR1 is the first value, and the value used for quantifying GHG emissions by the second quantification rule CR2 is the second value, the processing unit 13 changes the value used for quantifying GHG emissions from the second value to the first value. The processing unit 13 then makes the communication unit 11 function as an output unit and notifies via the communication unit 11 that the value used for quantifying GHG emissions has been changed from the second value to the first value.

[0177] Therefore, according to this embodiment, since the management device 10 changes the value used to quantify GHG emissions from the second value to the first value, the effort and man-hours required of the person in charge can be reduced. Furthermore, according to this embodiment, the man-hours required for the person in charge to change the value used to quantify GHG emissions can be reduced, thus reducing the possibility that a value different from the value that should be set will be mistakenly set by the person in charge. Thus, the man-hours that may be required due to rework can be reduced.

[0178] Furthermore, according to this embodiment, the method for quantifying GHG emissions specifies at least one of the following as the type of value used for quantifying GHG emissions: the type of emission factor database and the type of activity level value.

[0179] Therefore, according to this embodiment, if the type of emission factor database differs between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that work is required to change the emission factor database. Similarly, if the type of activity level value differs between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that work is required to obtain the activity level specified in the first quantification rule CR1.

[0180] Furthermore, according to this embodiment, if the database of emission factors specified in the first quantification rule CR1 is stored in the storage unit 12, the management device 10 sets the database of emission factors in accordance with the first quantification rule CR1, thereby reducing the effort and workload of the person in charge.

[0181] Furthermore, according to this embodiment, the quantification rule CR specifies a method for quantifying GHG emissions. The GHG emission quantification method specifies the criteria for acquiring activity levels. The processing unit 13 determines whether there is a difference in the criteria for acquiring activity levels between the first quantification rule CR1 and the second quantification rule CR2. If the processing unit 13 determines that there is a difference in the criteria for acquiring activity levels, it activates the communication unit 11 as an output unit and notifies the processing unit 11 that there is a difference in the criteria for acquiring activity levels.

[0182] Therefore, according to this embodiment, if there is a difference in the criteria for acquiring activity levels between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that work is required to change the criteria for acquiring activity levels. Furthermore, according to this embodiment, the management device 10 changes the criteria for acquiring activity levels that can be changed by the management device 10, thus reducing the effort and man-hours required of the person in charge. Moreover, according to this embodiment, the man-hours required for the person in charge to change the criteria for acquiring activity levels can be reduced, thereby reducing the possibility that a value different from the value that should be set will be mistakenly set by the person in charge. Thus, the man-hours that may be required due to rework can be reduced.

[0183] Furthermore, according to this embodiment, the activity level acquisition criteria specify the activity level acquisition cycle. Therefore, according to this embodiment, if there is a difference in the activity level acquisition cycle between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that work is required to change the activity level acquisition cycle. Moreover, according to this embodiment, if the management device 10 can change the activity level acquisition cycle, the management device 10 will change the activity level acquisition cycle, thus reducing the effort and man-hours required from the person in charge. Furthermore, according to this embodiment, since the man-hours required for the person in charge to change the activity level acquisition cycle can be reduced, the possibility of the person in charge mistakenly setting a value different from the value that should be set can be reduced. Thus, the man-hours that may be required due to rework can be reduced.

[0184] Furthermore, according to this embodiment, the activity level includes the activity level measured by the sensor. The criteria for acquiring the activity level specify at least one of the following: the measurement accuracy of the sensor and the mounting position of the sensor.

[0185] Therefore, according to this embodiment, if there is a difference in the measurement accuracy of the sensor between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that it is necessary to change the sensor. Similarly, if there is a difference in the mounting position of the sensor between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that it is necessary to change the mounting position of the sensor.

[0186] Furthermore, according to this embodiment, the quantification rule CR specifies a method for quantifying GHG emissions. The method for quantifying GHG emissions refers to one of two methods: a method for calculating GHG emissions based on activity levels and emission coefficients, or a method for directly measuring GHG emissions. The processing unit 13 determines whether there is a difference in the method for quantifying GHG emissions between the first quantification rule CR1 and the second quantification rule CR2. If the processing unit 13 determines that there is a difference in the method for quantifying GHG emissions between the first quantification rule CR1 and the second quantification rule CR2, it causes the communication unit 11 to function as an output unit and notifies via the communication unit 11 that there is a difference in the method for quantifying GHG emissions between the first quantification rule CR1 and the second quantification rule CR2.

[0187] Therefore, according to this embodiment, if there is a difference in the method of quantifying GHG emissions between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that work is required to change the method of quantifying GHG emissions.

[0188] Furthermore, according to this embodiment, the quantification rule CR specifies a plurality of quantification targets and a classification method for the plurality of quantification targets. The processing unit 13 determines whether there is a difference in the classification method between the first quantification rule CR1 and the second quantification rule CR2. If the processing unit 13 determines that there is a difference in the classification method between the first quantification rule CR1 and the second quantification rule CR2, it causes the communication unit 11 to function as an output unit and notifies via the communication unit 11 that there is a difference in the classification method between the first quantification rule CR1 and the second quantification rule CR2.

[0189] Therefore, according to this embodiment, if there is a difference in the classification method of the object to be quantified between the first quantification rule CR1 and the second quantification rule CR2, the person in charge can be notified that work is required to change the classification method of the object to be quantified.

[0190] Furthermore, according to this embodiment, when the processing unit 13 receives the setting of the first quantification rule CR1, it changes the quantification rule CR from the second quantification rule CR2 to the first quantification rule CR1. If the processing unit 13 determines that there is a difference in the classification method of the object to be quantified, it changes the classification method of the object to be quantified from the classification method defined in the second quantification rule CR2 to the classification method defined in the first quantification rule CR1.

[0191] Therefore, according to this embodiment, since the management device 10 changes the classification method of the data to be quantified, the effort and work hours of the person in charge can be reduced. Furthermore, according to this embodiment, since the work hours required for the person in charge to change the classification method of the data to be quantified can be reduced, the possibility of the person in charge mistakenly setting a category different from the category that should have been set can be reduced. Thus, the work hours that may be incurred due to rework can be reduced.

[0192] Furthermore, according to this embodiment, the GHG emission quantification rule CR identifies multiple quantification targets. The processing unit 13 determines whether there is a difference between the multiple quantification targets of the first quantification rule CR1 and the multiple quantification targets of the second quantification rule CR2. If the processing unit 13 determines that there is a difference between the multiple quantification targets of the first quantification rule CR1 and the multiple quantification targets of the second quantification rule CR2, it causes the communication unit 11 to function as an output unit and notifies the quantification targets that have a difference between the first quantification rule CR1 and the second quantification rule CR2 via the communication unit 11.

[0193] Therefore, according to this embodiment, the person in charge can be notified of the quantification targets that differ between the first quantification rule CR1 and the second quantification rule CR2. Thus, the items that require attention can be clarified to the person in charge. As a result, compared to the case where the person in charge has to address all items of the first quantification rule CR1, the effort and workload of the person in charge can be reduced, thereby alleviating the burden on the person in charge.

[0194] Furthermore, according to this embodiment, the processing unit 13 does not notify the quantification target of the first quantification rule CR1 that does not differ from the second quantification rule CR2 among the multiple quantification targets. Therefore, according to this embodiment, since notifications are not made for items that do not require action by the person in charge, the work on items that do not require action can be reduced. Consequently, the effort and workload of the person in charge can be reduced compared to the case where the person in charge handles all items of the first quantification rule CR1.

[0195] Furthermore, according to this embodiment, the management method is a method for managing GHG emissions, which are the amount of greenhouse gases emitted in the hydrogen supply chain SC. The GHG emission quantification rule CR includes a first quantification rule CR1 and a second quantification rule CR2 that is different from the first quantification rule CR1. The management method includes accepting the setting of the first quantification rule CR1, determining whether there is a difference between the first quantification rule CR1 and the second quantification rule CR2 which was received before the first quantification rule CR1, and, if it is determined that there is a difference between the first quantification rule CR1 and the second quantification rule CR2, outputting a notification indicating the difference between the first quantification rule CR1 and the second quantification rule CR2.

[0196] Therefore, according to this embodiment, for example, when the quantification rule CR is changed from the second quantification rule CR2 to the first quantification rule CR1, the differences between the first quantification rule CR1 and the second quantification rule CR2 are notified, making it possible to identify items that require action by the person in charge. As a result, for items that overlap between the first quantification rule CR1 and the second quantification rule CR2, the person in charge does not need to do any work. Thus, the burden on the person in charge can be reduced compared to when the person in charge is responsible for all items specified in the first quantification rule CR1.

[0197] Furthermore, according to this embodiment, when it is necessary to respond to the quantification rule CR of the GHG emissions reporting system (first quantification rule CR1) in addition to the quantification rule CR selected according to the market (second quantification rule CR2), it is possible to notify the differences between the quantification rule CR of the GHG emissions reporting system and the quantification rule CR selected according to the market. Therefore, according to this embodiment, when it is necessary to respond to both the quantification rule CR selected according to the market and the quantification rule CR of the GHG emissions reporting system, the burden on the person in charge can be reduced.

[0198] Embodiments of the present disclosure have been described above with reference to Figures 1 to 18. However, the functions of the elements disclosed herein may be implemented using one or more circuits or processing circuits, including general-purpose processors, special-purpose processors, integrated circuits, ASICs (Application Specific Integrated Circuits), FPGAs (Field Programmable Gate Arrays), conventional circuits, and / or combinations thereof, which are programmed using one or more programs stored in one or more memories, or otherwise configured to perform the disclosed functions. A processor is considered a processing circuit or circuit because it includes transistors and other circuits. A processor may be a programmed processor that executes programs stored in memory. In this disclosure, a circuit, unit, or means is hardware that performs the enumerated functions individually or in combination with each other, or hardware programmed to perform the enumerated functions individually or in combination with each other. The hardware may be any hardware disclosed herein that is programmed or configured to perform the listed functions.

[0199] Computer programs, including computer instructions, are stored in memory. These computer instructions provide logic and routines that enable hardware (e.g., processing circuits or circuits) to perform the methods disclosed herein. These computer programs may be implemented in known formats on computer-readable storage media, computer program products, memory devices, recording media such as CD-ROMs or DVDs, and / or in the memory of FPGAs or ASICs.

[0200] This disclosure is not limited to the embodiments described above, and can be implemented in various forms without departing from its essence. The components disclosed in the embodiments above can be modified as appropriate. For example, some components of all components shown in one embodiment may be added to the components of another embodiment, or some components of all components shown in one embodiment may be removed from the embodiment.

[0201] The drawings schematically show each component in order to facilitate understanding, and the thickness, length, number, spacing, etc. of each component shown may differ from the actual dimensions due to the constraints of drawing creation. Furthermore, the configuration of each component shown in the above embodiments is merely an example and is not particularly limiting, and it goes without saying that various modifications are possible within the scope that does not substantially deviate from the effects of this disclosure.

[0202] For example, in the embodiment described with reference to Figures 1 to 18, GHG emissions were managed by the control device 10, but the control device 10 may also manage carbon dioxide emissions instead of GHG emissions. For example, the control device 10 may manage GHG emissions by converting them to carbon dioxide emissions.

[0203] Furthermore, in the embodiment described with reference to Figures 1 to 18, the third and fourth determination processes were executed in that order for the selected quantification target, but the order in which the third and fourth determination processes are executed may be reversed.

[0204] Furthermore, in the embodiment described with reference to Figures 1 to 18, when multiple quantification targets are common between the first quantification rule CR1 and the second quantification rule CR2, the processing unit 13 performed the process described with reference to Figures 8 to 13 for each common quantification target. However, the processing unit 13 may perform a process to determine whether or not there is a difference in the quantification method for all common quantification targets and then notify the determination result.

[0205] Similarly, in the embodiment described with reference to Figures 1 to 18, when multiple quantification targets are common between the first quantification rule CR1 and the second quantification rule CR2, the processing unit 13 performed the process described with reference to Figures 15 and 16 for each common quantification target. However, the processing unit 13 may perform a process to determine whether or not there is a difference in the criteria for acquiring activity levels for all common quantification targets, and then notify the determination result.

[0206] Furthermore, with reference to Figures 9 to 13, 15 and 16, the processing performed by the processing unit 13 has been explained using the example of a case where the method for quantifying GHG emissions is specified in the quantification rule CR. However, some or all of the method for quantifying GHG emissions does not need to be specified in the quantification rule CR. In this case, the processing unit 13 may perform the processing shown in Figures 9 to 13, 15 and 16 based on information arbitrarily set by the person in charge for items not specified in the quantification rule CR. For example, if the type of emission factor database is arbitrary in the first quantification rule CR1, the processing unit 13 may determine whether or not there is a difference between the type of emission factor database set by the person in charge and the type of emission factor database related to the second quantification rule CR2.

[0207] Furthermore, in the embodiment described with reference to Figures 1 to 18, a configuration was described in which GHG emissions are managed by a management device 10 and terminal devices 2 of each business operator constituting the hydrogen supply chain SC. However, each business operator constituting the hydrogen supply chain SC may own the management device 10. In this case, the terminal devices 2 may be omitted.

[0208] If each operator constituting the hydrogen supply chain SC owns a control device 10, the control device 10 may further include, for example, a man-machine interface operated by a person in charge and a display device.

[0209] The human-machine interface inputs data to the processing unit 13 in response to the operator's actions. Specifically, the human-machine interface functions as an input unit and inputs setting data and sensor information to the processing unit 13. The human-machine interface also inputs at least a portion of the information regarding the specified items of the quantification rule CR to the processing unit 13. Of the information regarding the specified items of the quantification rule CR, the activity amount measured by the sensor may be input directly from the sensor to the processing unit 13. The human-machine interface may have, for example, a keyboard and a mouse. The human-machine interface may have a touch sensor. The touch sensor may be superimposed on the display surface of the display device.

[0210] The display device is controlled by the processing unit 13. The display device functions as an output unit and displays a notification indicating the difference between the first quantification rule CR1 and the second quantification rule CR2. The display device may be, for example, a liquid crystal display or an organic EL (Electro-Luminescence) display.

[0211] [Note] This disclosure further discloses the following aspects, but these aspects do not limit this disclosure.

[0212] [Aspect 1] A management device for managing GHG emissions, which are the amount of greenhouse gases emitted in a hydrogen supply chain, wherein the GHG emission quantification rule includes a first quantification rule and a second quantification rule different from the first quantification rule, and the management device comprises an input unit for inputting setting data for setting the quantification rule, an output unit for outputting a predetermined notification, and a processing unit that, upon receiving the setting of the first quantification rule, determines whether there is a difference between the first quantification rule and the second quantification rule received before the first quantification rule, and if it determines that there is a difference, provides a notification indicating the difference via the output unit.

[0213] [Aspect 2] The management device according to aspect 1, wherein the quantification rule specifies a method for quantifying the GHG emissions, the quantification method specifies the type of value used for quantifying the GHG emissions, the processing unit determines whether there is a difference in the type of value used for quantification between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the type of value used for quantification, it notifies via the output unit that there is a difference in the type of value used for quantification.

[0214] [Aspect 3] The management device according to aspect 2, further comprising a storage unit that stores a first value and a second value different from the first value as values ​​used for quantification, wherein when the processing unit receives the setting of the first quantification rule, it changes the quantification rule from the second quantification rule to the first quantification rule, and if the value used for quantification of the GHG emissions according to the first quantification rule is the first value, and the value used for quantification of the GHG emissions according to the second quantification rule is the second value, it changes the value used for quantification from the second value to the first value, and notifies via the output unit that the value used for quantification has been changed from the second value to the first value.

[0215] [Aspect 4] The control device according to aspect 2 or aspect 3, wherein the quantification method specifies at least one of the types of emission coefficient databases and the types of activity level values ​​as the types of values ​​used for quantification.

[0216] [Aspect 5] The management device according to any one of aspects 1 to 4, wherein the quantification rule specifies a method for quantifying the GHG emissions, the quantification method specifies a standard for acquiring activity levels, the processing unit determines whether there is a difference in the acquisition standard between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the acquisition standard, it notifies via the output unit that there is a difference in the acquisition standard.

[0217] [Aspect 6] The acquisition criteria are the management device described in aspect 5, which specifies the acquisition cycle of the activity level.

[0218] [Aspect 7] The management device according to aspect 5 or aspect 6, wherein the activity amount includes an activity amount measured by a sensor, and the acquisition criterion specifies at least one of the measurement accuracy of the sensor and the mounting position of the sensor.

[0219] [Aspect 8] The management device according to any one of aspects 1 to 7, wherein the quantification rule specifies a method for quantifying the GHG emissions, the quantification method indicates one of a method for calculating the GHG emissions based on the activity level and the emission coefficient, and a method for directly measuring the GHG emissions, the processing unit determines whether there is a difference in the quantification method between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the quantification method, it notifies via the output unit that there is a difference in the quantification method.

[0220] [Aspect 9] The management device according to any one of aspects 1 to 8, wherein the quantification rule specifies a plurality of objects to be quantified and a method for classifying the plurality of objects to be quantified, the processing unit determines whether there is a difference in the classification method between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the classification method, it notifies via the output unit that there is a difference in the classification method.

[0221] [Aspect 10] The control device according to aspect 9, wherein the processing unit, upon receiving the setting of the first quantification rule, changes the quantification rule from the second quantification rule to the first quantification rule, and, if it determines that there is a difference in the classification method, changes the classification method from the classification method of the second quantification rule to the classification method of the first quantification rule.

[0222] [Aspect 11] The management device according to any one of aspects 1 to 10, wherein the quantification rule identifies a plurality of quantification targets, the processing unit determines whether there is a difference between the plurality of quantification targets of the first quantification rule and the plurality of quantification targets of the second quantification rule, and if it determines that there is a difference, it notifies the quantification targets with the difference via the output unit.

[0223] [Aspect 12] The control device according to aspect 11, wherein the processing unit does not provide notification for any of the plurality of quantification targets of the first quantification rule that do not have any difference.

[0224] [Aspect 13] A management method for managing GHG emissions, which are the amount of greenhouse gases emitted in a hydrogen supply chain, wherein the GHG emission quantification rule includes a first quantification rule and a second quantification rule different from the first quantification rule, and the management method includes receiving the setting of the first quantification rule, determining whether there is a difference between the first quantification rule and the second quantification rule received before the first quantification rule, and outputting a notification indicating the difference if it is determined that there is a difference.

Claims

1. A control device for managing GHG emissions, which are the amount of greenhouse gases emitted in a hydrogen supply chain, wherein the GHG emission quantification rule includes a first quantification rule and a second quantification rule different from the first quantification rule, and the control device comprises an input unit for inputting setting data for setting the quantification rule, an output unit for outputting a predetermined notification, and a processing unit that, upon receiving the setting of the first quantification rule, determines whether there is a difference between the first quantification rule and the second quantification rule received before the first quantification rule, and if it determines that there is a difference, provides a notification indicating the difference via the output unit.

2. The management device according to claim 1, wherein the quantification rule specifies a method for quantifying the GHG emissions, the quantification method specifies the type of value used for quantifying the GHG emissions, the processing unit determines whether there is a difference in the type of value used for quantification between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the type of value used for quantification, it notifies via the output unit that there is a difference in the type of value used for quantification.

3. The management device according to claim 2, further comprising a storage unit that stores a first value and a second value different from the first value as values ​​used for quantification, wherein the processing unit, upon receiving the setting of the first quantification rule, changes the quantification rule from the second quantification rule to the first quantification rule, and if the value used for quantification of the GHG emissions according to the first quantification rule is the first value, and the value used for quantification of the GHG emissions according to the second quantification rule is the second value, changes the value used for quantification from the second value to the first value, and notifies via the output unit that the value used for quantification has been changed from the second value to the first value.

4. The management device according to claim 2, wherein the quantification method specifies at least one of the following as the type of value to be used for quantification: the type of database of emission factors and the type of value of activity levels.

5. The management device according to claim 1, wherein the quantification rule specifies a method for quantifying the GHG emissions, the quantification method specifies a standard for acquiring activity levels, the processing unit determines whether there is a difference in the acquisition standard between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the acquisition standard, it notifies the system via the output unit that there is a difference in the acquisition standard.

6. The management device according to claim 5, wherein the acquisition criteria specify the acquisition cycle of the activity level.

7. The management device according to claim 5, wherein the activity amount includes an activity amount measured by a sensor, and the acquisition criterion specifies at least one of the measurement accuracy of the sensor and the mounting position of the sensor.

8. The management device according to claim 1, wherein the quantification rule specifies a method for quantifying the GHG emissions, the quantification method indicates one of the following: a method for calculating the GHG emissions based on the activity level and the emission coefficient, and a method for directly measuring the GHG emissions, the processing unit determines whether there is a difference in the quantification method between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the quantification method, it notifies the system via the output unit that there is a difference in the quantification method.

9. The management device according to claim 1, wherein the quantification rule specifies a plurality of objects to be quantified and a method for classifying the plurality of objects to be quantified, the processing unit determines whether there is a difference in the classification method between the first quantification rule and the second quantification rule, and if it determines that there is a difference in the classification method, it notifies the system via the output unit that there is a difference in the classification method.

10. The control device according to claim 9, wherein the processing unit, upon receiving the setting of the first quantification rule, changes the quantification rule from the second quantification rule to the first quantification rule, and, if it determines that there is a difference in the classification method, changes the classification method from the classification method of the second quantification rule to the classification method of the first quantification rule.

11. The management device according to claim 1, wherein the quantification rule identifies a plurality of quantification targets, the processing unit determines whether there is a difference between the plurality of quantification targets of the first quantification rule and the plurality of quantification targets of the second quantification rule, and if it determines that there is a difference, it notifies the quantification targets with the difference via the output unit.

12. The control device according to claim 11, wherein the processing unit does not provide notification for any of the plurality of quantification targets of the first quantification rule that do not have any difference.

13. A management method for managing GHG emissions, which are the amount of greenhouse gases emitted in a hydrogen supply chain, wherein the GHG emission quantification rule includes a first quantification rule and a second quantification rule different from the first quantification rule, and the management method includes receiving the setting of the first quantification rule, determining whether there is a difference between the first quantification rule and the second quantification rule received before the first quantification rule, and, if it is determined that there is a difference, outputting a notification indicating the difference.

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