JP2025037664A - Environmental Value Calculation System - Google Patents

Abstract

To provide an environmental value calculation system capable of facilitating the use of an environmental value on the basis of a generation amount and a reduction amount of greenhouse gas in physical distribution.SOLUTION: An environmental value calculation system 1000 includes a greenhouse gas emission calculation unit 612b, a power consumption acquisition unit 612c, a greenhouse gas emission reduction calculation unit 612d, and an environmental value calculation unit 612e. The greenhouse gas emission calculation unit 612b calculates emissions of greenhouse gas. The greenhouse gas is generated by transportation related to physical distribution. The power consumption acquisition unit 612c acquires an amount of power consumption by solar power generation, the power being consumed in physical distribution bases. The greenhouse gas emission reduction calculation unit 612d calculates the reduction amount of greenhouse gas emissions on the basis of the power consumption. The environmental value calculation unit 612e subtracts the reduction amount from the emissions to calculate an environmental value related to physical distribution.SELECTED DRAWING: Figure 5

Description

The present invention relates to an environmental value calculation system.

It has been known to convert the amount of electricity generated using natural energy sources such as solar and wind power into the amount of greenhouse gas reduction (Patent Document 1). In addition, many countries are moving forward with the introduction of a carbon tax that taxes the amount of carbon dioxide emitted by companies and other organizations when they use electricity and fuel.

JP 2004-88898 A

In logistics, transportation that uses fossil fuels as an energy source plays an important role. For example, trucks, which play a major role in logistics-related transportation, are primarily fueled by diesel, a fossil fuel. For this reason, logistics-related transportation generates greenhouse gases.

On the other hand, as described in Patent Document 1, efforts are being made to convert the amount of electricity generated using natural energy sources into the amount of greenhouse gas reduction.

However, the technology described in Patent Document 1 does not take into consideration the amount of greenhouse gas reduction generated in relation to logistics, nor does it consider the relationship between the amount of greenhouse gas generated and the amount of reduction in relation to logistics. For this reason, it is difficult to promote the use of environmental value generated within the logistics supply chain.

In view of the above problems, the objective of the present disclosure is to provide an environmental value calculation system that can promote the use of environmental value based on the amount of greenhouse gases generated and reduced in logistics.

The gist of this disclosure is as follows:

(1) The environmental value calculation system includes a greenhouse gas emission calculation unit, a power consumption acquisition unit, a greenhouse gas emission reduction calculation unit, and an environmental value calculation unit. The greenhouse gas emission calculation unit calculates the amount of greenhouse gas emissions. The greenhouse gas is generated by transportation related to logistics. The power consumption acquisition unit acquires the consumption of solar power consumed at a logistics base. The greenhouse gas emission reduction calculation unit calculates the reduction in greenhouse gas emissions based on the consumption. The environmental value calculation unit calculates the environmental value related to logistics by subtracting the reduction from the emission.

(2) In the environmental value calculation system described above in (1), the greenhouse gas emission reduction calculation unit calculates the reduction amount by multiplying the consumption amount by an emission coefficient. The emission coefficient is a coefficient corresponding to the commercial electricity supplied to the logistics base.

(3) The environmental value calculation system in (1) above further includes an environmental value information transmission unit, an environmental value purchase request receiving unit, and a payment processing unit. The environmental value information transmission unit transmits information related to the environmental value to a terminal device of the power generation business operator. The environmental value purchase request receiving unit receives a purchase request for the environmental value from the terminal device of the power generation business operator. The payment processing unit performs a payment process to transfer the environmental value to the power generation business operator based on the purchase request.

According to the present disclosure, an environmental value calculation system is provided that can promote the use of environmental value based on the amount of greenhouse gases generated and reduced in logistics.

FIG. 1 is a schematic diagram showing an example of the configuration of a completely self-consumption on-site PPA. 1 is a schematic diagram showing the exterior of a warehouse equipped with a solar power generation control system. FIG. 1 is a schematic diagram showing a configuration of an environmental value calculation system. FIG. 2 is a block diagram showing a configuration of a server. FIG. 2 is a block diagram showing the functions of a processor of the server. FIG. 1 is a diagram showing unit calorific value and emission coefficient according to type of fuel. FIG. 1 is a diagram showing emission coefficients according to the power generation method of commercial electricity. 13 is a flowchart showing the process of a processor of the server.

Several embodiments of the present disclosure will be described below with reference to the drawings. However, these descriptions are intended to merely exemplify preferred embodiments of the present disclosure, and are not intended to limit the present disclosure to such specific embodiments. In the following description, similar components will be given the same reference numbers, and duplicate descriptions will be omitted as appropriate.

As an example, the solar power generation control system 100 according to this embodiment includes a solar panel 102 and a storage battery 104, and is used in the form of a completely self-consumption on-site PPA. In an on-site PPA, as shown in FIG. 1, a power generation company 300 installs the control system 100 on the premises of a consumer 350, and supplies the power generated by the control system 100 to the consumer 350 on-site (on-site). The power generation company 300 and the consumer 350 enter into a power purchase agreement, i.e., a PPA. Based on the PPA, the power generation company 300 installs the control system 100, and also owns and manages the control system 100. Based on the PPA, the consumer 350 pays the power fee to the power generation company 300.

In the case of a completely self-consumption type, all of the electricity generated by the control system 100 is consumed by the consumer 350 on its premises. Therefore, the electricity generated by the control system 100 is supplied only to facilities on the premises of the consumer 350, and the electricity is not supplied to the transmission network, distribution network, etc. of other power systems.

When the amount of power generated by the control system 100 is in excess of the amount of power required by the consumer 350, the surplus is stored in the storage battery 104. When the amount of power generated by the control system 100 is insufficient for the amount of power required by the consumer 350, the shortfall is made up by discharging the power stored in the storage battery 104. The shortfall may also be made up by the consumer 350 purchasing power from an existing power company 400.

In this embodiment, a warehouse is built on the premises of the consumer 350, and the power generation company 300 installs the control system 100 in the warehouse 500 shown in FIG. 2. The control system 100 may be installed in a facility or building other than the warehouse 500. The solar panel 102 of the control system 100 is installed on the roof of the warehouse 500. The control system 100 supplies solar power to various facilities provided in the warehouse 500. The control system 100 also stores surplus power in a storage battery 104.

The warehouse 500 may be built on a large site, in which case the power generation company 300 may install a large area of solar panels 102 on the roof of the warehouse 500. On the other hand, the use of electricity in the warehouse 500 may be limited to lighting, etc. For this reason, the electricity generated by the control system 100 from sunlight is greater than the electricity consumed by the warehouse 500. Therefore, the electricity consumed by the warehouse 500 is basically covered entirely by the electricity generated by the control system 100 from sunlight, and the surplus electricity is stored in the storage battery 104.

Items related to the logistics of the warehouse 500, i.e. items brought in and out of the warehouse 500, are transported on vehicles 520 shown in FIG. 2. As an example, the vehicles 520 are trucks. The power generation company 300 collects and manages information on the operating status of the vehicles 520 that enter and leave the warehouse 500. In particular, the power generation company 300 collects and manages the energy consumption, i.e. fuel usage, of each vehicle 520.

The energy consumption of the vehicle 520 entering and leaving the warehouse 500 causes greenhouse gas emissions due to transportation. If the vehicle 520 uses fossil fuels as fuel, greenhouse gases are emitted by burning the fossil fuels. If the vehicle 520 is an electric vehicle driven by electricity, the electricity is purchased from commercial power, and if the commercial power is generated from fossil fuels, greenhouse gases are emitted according to the fossil fuel usage rate of the purchased commercial power. In this case, the power source composition ratio published by the power company, for example the power source composition ratio of the previous year, can be used as the fossil fuel usage rate. For example, if the power source composition ratio shows that the ratio of power supply equipment using fossil fuels is 70% of the total, the greenhouse gas emissions related to the power consumption of the electric vehicle are calculated as the greenhouse gas emissions when generating electricity from fossil fuels in an amount equivalent to 70% of the purchased commercial power.

If the warehouse 500 is not equipped with the solar power generation control system 100 and solar power generation is not performed in the warehouse 500, the total amount of greenhouse gas emissions related to logistics in the warehouse 500 will be the greenhouse gas emissions due to the transportation of the vehicles 520 and the greenhouse gas emissions related to the generation of commercial electricity used in the warehouse 500. The greenhouse gas emissions due to the transportation of the vehicles 520 are the total amount of greenhouse gas emissions caused by the combustion of fossil fuels. In addition, the greenhouse gas emissions related to the generation of commercial electricity are the greenhouse gas emissions generated when the amount of commercial electricity consumed in the warehouse 500 is generated by burning fossil fuels.

On the other hand, if the warehouse 500 is equipped with a solar power generation control system 100, a reduction in greenhouse gas emissions occurs due to solar power generation. Therefore, the total amount of greenhouse gas emissions related to logistics in the warehouse 500 is reduced by the amount of greenhouse gas emissions reduction due to solar power generation compared to when the warehouse 500 does not have a solar power generation control system 100. In addition, in this case, the electricity consumed in the warehouse 500 is basically all covered by electricity generated by the control system 100 using solar power, so greenhouse gas emissions related to commercial electricity generation do not basically need to be taken into consideration. Therefore, the total amount of greenhouse gas emissions related to logistics in the warehouse 500 is the value obtained by subtracting the amount of greenhouse gas emissions reduction due to solar power generation from the amount of greenhouse gas emissions due to transportation by the vehicle 520.

Therefore, greenhouse gases are emitted during the logistics of goods being brought in and out of the warehouse 500. On the other hand, greenhouse gas emissions are reduced by the solar power generation control system 100 installed in the warehouse 500, which serves as the logistics base.

As described above, in this embodiment, the greenhouse gas emissions related to logistics in the warehouse 500 are reduced by the amount of greenhouse gas reduction due to solar power generation. As described above, in the warehouse 500, the amount of electricity generated by solar power generation is often greater than the amount of electricity consumed in the warehouse 500. For this reason, an environmental value, that is, a carbon credit, is generated because the amount of greenhouse gas emission reduction is greater than the amount of greenhouse gas emission. In this embodiment, the power generation company 300 issues a value obtained by subtracting the amount of greenhouse gas reduction due to solar power generation from the amount of greenhouse gas emission due to transportation as an environmental value, and other power generation companies can use the environmental value. For example, the environmental value may be a value equivalent to a non-fossil certificate or a value equivalent to the "additionality" of renewable energy. The environmental value may be issued after certification. For example, the environmental value may be certified by a regional organization consisting of multiple power generation companies. In addition, the environmental value may be issued as a value equivalent to a J-Credit certified by the Japan Quality Assurance Organization, a general incorporated foundation, and the environmental value may be issued as a value equivalent to a Green Power Certificate certified by the same foundation.

For example, if another power generation company installs a solar power generation control system 100 in a factory, the power consumption of the factory is relatively large, so that the power generated by solar power generation may not be able to cover all of the power consumption of the factory. As an example, the other power generation company may be able to supply only 20% of the power consumption of the factory with solar power generation. In this case, the other power generation company may purchase fossil fuel-based commercial power to make up for the remaining 80% of the power consumption. In such a case, the other power generation company does not use 100% of renewable energy. However, by purchasing environmental value equivalent to 80% of the power consumption from the power generation company 300 that issued the environmental value, the other power generation company is essentially using 100% of renewable energy. Therefore, the other power generation company that purchased the environmental value can declare that it is essentially using 100% of renewable energy. In addition, as a result, the other power generation company will make self-help efforts such as expanding solar power generation facilities to reduce the cost of purchasing environmental value, which will promote the use of solar power generation by other power generation companies.

Since greenhouse gases include gases other than carbon dioxide, greenhouse gas emissions can be more specifically expressed in carbon dioxide equivalent ( _CO2 equivalent: unit is [t· _CO2 eq]), or in _CO2 equivalent mass. _CO2 equivalent mass is calculated by weighting _CO2 (global warming potential: 1) and gases other than _CO2 , such as methane _CH4 and nitrous oxide _N2O , by their global warming potentials and converting them into _CO2 . For ease of explanation, the following description will be given using carbon dioxide as an example of a greenhouse gas.

As shown in FIG. 3, the environmental value calculation system 1000 according to this embodiment has a plurality of vehicles 520, a server 600 of the power generation company 300, a control device 800 of the control system 100, and a terminal device 900 of another power generation company. The terminal device 900 of the other power generation company is a terminal for each company, and the environmental value calculation system 1000 may have a plurality of terminal devices 900. The vehicle 520 and the server 600 can communicate with each other via a communication network 700 composed of an optical communication line or the like and a wireless base station 720 connected to the communication network 700 via a gateway (not shown). That is, the communication network 700 and the wireless base station 720 relay communication between the vehicle 520 and the server 600. In addition, the control device 800, the terminal device 900, and the server 600 can communicate with each other via the communication network 700, and the communication network 700 relays communication between the control device 800, the terminal device 900, and the server 600. In addition, the terminal device 900 of the other power generation company may have the same functions as the server 600 of the power generation company 300.

As shown in FIG. 4, the server 600 has a control device 610 and a storage device 620.

The control device 610 is, for example, an electronic control unit (ECU), and includes a processor 612, a memory 614, and a communication interface 616. The processor 612 includes one or more central processing units (CPUs) and their peripheral circuits. The processor 612 may further include other arithmetic circuits such as a logic arithmetic unit, a numerical arithmetic unit, or a graphic processing unit. The memory 614 includes, for example, a volatile semiconductor memory and a non-volatile semiconductor memory. The communication interface 616 corresponds to the communication I/F shown in FIG. 4 and includes an interface circuit for connecting the control device 610 to a network in the server 600 or the communication network 700. The communication interface 616 is configured to be able to communicate with the vehicle 520, the control device 800, and the terminal device 900. The communication interface 616 passes a signal received from the vehicle 520 via the communication network 700 and the wireless base station 720, i.e., a signal indicating energy consumption, to the processor 612. The communication interface 616 also passes a signal received from the control device 800 via the communication network 700, i.e., a signal indicating the amount of electricity consumed by solar power generation, to the processor 612. The communication interface 616 also passes a signal received from the terminal device 900 via the communication network 700, i.e., a signal indicating a request to purchase an environmental value, to the processor 612. The communication interface 616 also transmits a signal received from the processor 612, i.e., information related to the environmental value and a signal indicating the environmental value, to the terminal device 900 via the communication network 700.

The storage device 620 has, for example, a hard disk device or an optical recording medium and an access device therefor. The storage device 620 stores, for example, the energy consumption of each vehicle 520, the consumption of solar power generated by the control system 100, and the latest information on environmental value. The storage device 620 may also store a computer program for executing the processes executed on the processor 612.

The processor 612 of the control device 610 of the server 600 is one aspect of an environmental value calculation device. As shown in FIG. 5, the processor 612 has an energy consumption acquisition unit 612a, a greenhouse gas emission calculation unit 612b, a power consumption acquisition unit 612c, a greenhouse gas emission reduction calculation unit 612d, an environmental value calculation unit 612e, an environmental value information transmission unit 612f, an environmental value purchase request reception unit 612g, a payment processing unit 612h, and an environmental value transmission unit 612i. Each of these units of the processor 612 is, for example, a functional module realized by a computer program running on the processor 612. In other words, each of these units of the processor 612 is composed of the processor 612 and a program for making it function, that is, software. In addition, the program may be recorded in the memory 614 of the control device 610 or a recording medium connected from the outside. Alternatively, each of these parts of the processor 612 may be a dedicated arithmetic circuit provided in the processor 612.

The energy consumption acquisition unit 612a acquires the amount of energy consumed during transportation. Specifically, the energy consumption acquisition unit 612a acquires the amount of fuel used during transportation [kl] from each vehicle 520.

The greenhouse gas emission calculation unit 612b calculates the amount of greenhouse gas emissions generated by transportation related to logistics. Specifically, the greenhouse gas emission calculation unit 612b calculates the amount of carbon dioxide emissions caused by transportation based on the following formula (1).
Carbon dioxide emissions [t・CO ₂ ] = Fuel consumption [kl] x Unit calorific value [GJ/kl] x Emission coefficient [t・C/GJ] x Molecular weight ratio 44/12 [t・CO ₂ /t・C]
... (1)

In formula (1), the unit calorific value and the emission coefficient are values that differ depending on the type of fuel. The unit calorific value and the emission coefficient according to the type of fuel described in the Joint Guideline Ver. 3.1 for Calculating _CO2 Emissions in the Logistics Field (Ministry of Economy, Trade and Industry, Ministry of Land, Infrastructure, Transport and Tourism, March 2016) are shown in FIG. 6. For example, when the fuel is gasoline, the unit calorific value is 34.6 [GJ/kl] and the emission coefficient is 0.0183 [t·C/GJ]. In formula (1), the fuel consumption [kl] is a value acquired by the energy consumption acquisition unit 612a. When the vehicle 520 is an electric vehicle, the carbon dioxide emissions due to transportation are calculated using the _CO2 emission coefficient according to the type of electricity used as the power source described in the above guideline. As described above, when the vehicle 520 is an electric vehicle, the carbon dioxide emissions due to transportation are calculated using the fossil fuel usage rate in the commercial electricity from which the electricity for the electric vehicle is purchased. More specifically, the carbon dioxide emission amount when generating the amount of electric power corresponding to the usage rate of fossil fuel among the purchased commercial electric power is calculated. Therefore, when the vehicle 520 is an electric vehicle, the carbon dioxide emission amount [t·CO ₂ ] is obtained by multiplying the amount of electric power corresponding to the usage rate of fossil fuel by the CO ₂ emission coefficient (/1,000 kWh) in FIG. 6. In addition, the CO ₂ emission coefficient differs depending on the power generation method. Therefore, the CO ₂ emission coefficient corresponding to the power generation method shown in FIG. 7 may be used as the CO ₂ emission coefficient to be multiplied by the amount of electric power corresponding to the usage rate of fossil fuel of commercial electric power. The unit calorific value and emission coefficient corresponding to the type of fuel shown in FIG. 6 are stored in advance in the memory 614 of the control device 610.

The power consumption acquisition unit 612c acquires the amount of power consumed by solar power generation at the logistics base. Specifically, the power consumption acquisition unit 612c acquires the amount of power consumed by solar power generation at the warehouse 500, transmitted from the control device 800 of the control system 100 via the communication network 700. Here, the amount of power consumed by solar power generation is the sum of the amount of power generated by the solar panel 102 and the amount of power discharged from the storage battery 104. The control device 800 of the control system 100 is a device that controls the entire control system 100, and constantly monitors the amount of power generated by the solar panel 102 and the amount of power discharged from the storage battery 104, and acquires these data. As described above, when the amount of power generated by the control system 100 is insufficient, the shortage is made up for by the discharge of power stored in the storage battery 104, so the total amount of power generated by the solar panel 102 and the amount of power discharged from the storage battery 104 corresponds to the amount of power consumed by solar power generation. When the amount of power generated by the solar panel 102 is greater than the amount of power consumed by the warehouse 500, and the amount of power generated by the solar panel 102 is surplus, the amount of power discharged from the storage battery 104 is 0. In this case, the amount of power consumed by solar power generation is the amount of power generated by the solar panel 102 minus the amount of surplus power.

The greenhouse gas emission reduction calculation unit 612d calculates a greenhouse gas emission reduction amount equivalent to the reduction in greenhouse gas emissions based on the consumption of solar power acquired by the power consumption acquisition unit 612c. More specifically, the greenhouse gas emission reduction calculation unit 612d calculates the reduction amount by multiplying the consumption of solar power by an emission coefficient according to the commercial power supplied to the warehouse 500, which is the logistics base. More specifically, the greenhouse gas emission reduction calculation unit 612d calculates the carbon dioxide emission reduction amount based on the following formula (2).
Carbon dioxide emission reduction amount [t·CO ₂ ] = total amount of power generated by solar power and amount of discharged power from storage battery [kWh] × emission coefficient [t·CO ₂ /kWh] (2)

In formula (2), the emission coefficient is determined as shown in FIG. 7 according to the power generation method of the commercial power supplied to the warehouse 500. As an example, when the commercial power supplied from the power company 400 to the warehouse 500 is generated from oil-fired power and the oil-fired power is used as the power source, the emission coefficient is 0.000738 [t·CO ₂ /kWh]. If the total of the power generation amount by the photovoltaic power generation and the discharge amount of the storage battery 104 is P [kWh], the amount of commercial power purchased from the power company 400 is reduced by the amount of power P [kWh], and the carbon dioxide emission amount is reduced. The carbon dioxide emission reduction amount calculated from formula (2) corresponds to the carbon dioxide emission amount reduced compared to the case where the total of the power generation amount by the photovoltaic power generation and the discharge amount of the storage battery 104 is purchased from commercial power. When calculating the carbon dioxide emission reduction amount, the usage rate of fossil fuels in the commercial power may also be taken into consideration. For example, when the ratio of power supply facilities using fossil fuels is 70% of the total power source composition ratio of commercial electricity, the amount of carbon dioxide emission reduction may be 70% of the value calculated from formula (2).

The environmental value calculation unit 612e calculates the environmental value related to logistics by subtracting the greenhouse gas emission reduction amount calculated by the greenhouse gas emission reduction amount calculation unit 612d from the greenhouse gas emission amount calculated by the greenhouse gas emission calculation unit 612b. Specifically, the environmental value calculation unit 612e calculates the environmental value from the following formula (3).
Environmental value [t·CO ₂ ] = carbon dioxide emissions from transportation [t·CO ₂ ] - carbon dioxide emission reduction [t·CO ₂ ]
...(3)

As described above, when a solar power generation control system 100 is installed in a warehouse 500, the amount of electricity generated by the control system 100 through solar power generation is often greater than the electricity consumed by the warehouse 500. When the amount of carbon dioxide emission reduction increases, the environmental value calculated from equation (3) becomes a negative value. When the environmental value is a negative value, other power generation companies that have purchased the environmental value can reduce their own carbon dioxide emissions by adding the negative environmental value to their own carbon dioxide emissions, thereby increasing the effective renewable energy utilization rate.

The processing by the energy consumption acquisition unit 612a, the greenhouse gas emission calculation unit 612b, the power consumption acquisition unit 612c, the greenhouse gas emission reduction calculation unit 612d, and the environmental value calculation unit 612e may be performed at predetermined time intervals. In other words, the environmental value may be calculated as a value at each predetermined time interval.

The environmental value information transmission unit 612f transmits information relating to the environmental value calculated by the environmental value calculation unit 612e to the terminal device 900 of the other power generation business operator via the communication network 700. The information relating to the environmental value includes information such as the value of the environmental value, the price required to purchase the environmental value, and the bank account to which the purchase price should be transferred. The information relating to the environmental value is displayed on the terminal device 900 of the other power generation business operator.

When another power generation business operator who has viewed the information on the environmental value displayed on the terminal device 900 transmits a request to purchase an environmental value from the terminal device 900, the environmental value purchase request receiving unit 612g receives the transmitted request to purchase an environmental value. The request to purchase an environmental value includes a request to purchase an environmental value, information for identifying the environmental value desired to be purchased, and identification information for identifying the other power generation business operator who wishes to purchase the environmental value.

When the environmental value purchase request receiving unit 612g receives a purchase request for the environmental value and the conditions for payment are met, the payment processing unit 612h performs a payment process to transfer the environmental value to another power generation business operator. For example, the payment processing unit 612h performs a payment process when it confirms that the purchase price for the environmental value has been received from the other power generation business operator that sent the purchase request.

When the payment process is performed, the environmental value transmission unit 612i transmits the environmental value to the terminal device 900 that transmitted the environmental request. The environmental value is transmitted to the terminal device 900 in the form of electronic data. This causes the environmental value to be transferred to the other power generation company, and the purchase procedure for the environmental value by the other power generation company is completed. It is more preferable that the environmental value is transferred in the above-mentioned authenticated state. The payment process may also use a normal electronic payment service. The environmental value may be operated, for example, by a peer-to-peer type computer network, such as a blockchain network. In this case, the payment process may be performed by transaction processing in the blockchain network. The server 600 of each power generation company 300 may also function as a node of the blockchain network. The environmental value may also be a token or cryptocurrency that utilizes the blockchain.

The power generation business operator 300 or another power generation business operator to whom the environmental value has been transferred can sell the environmental value in the carbon credit market or the renewable energy value trading market and make a profit. The power generation business operator 300 can also use the environmental value to differentiate itself from other companies. Furthermore, the power generation business operator 300 can use the environmental value to differentiate its own products. The power generation business operator 300 can also use the environmental value for branding its own products.

Next, the chronological flow of the processing of the processor 612 will be described with reference to FIG. 8. First, the energy consumption acquisition unit 612a acquires the energy consumption due to transportation from each vehicle 520 (step S10). Next, the greenhouse gas emission calculation unit 612b calculates the greenhouse gas emission due to transportation (step S12).

Next, the power consumption acquisition unit 612c acquires the amount of power consumed by solar power generation in the warehouse 500, which is the logistics base (step S14). Next, the greenhouse gas emission reduction calculation unit 612d calculates the greenhouse gas emission reduction amount equivalent to the reduction amount of greenhouse gas emissions (step S16). Note that either step S10 or step S14 may be performed first. Also, either step S12 or step S16 may be performed first as long as step S10 and step S14 have already been performed.

Next, the environmental value calculation unit 612e subtracts the greenhouse gas emission reduction amount calculated by the greenhouse gas emission reduction amount calculation unit 612d from the greenhouse gas emission amount calculated by the greenhouse gas emission calculation unit 612b to calculate the environmental value (step S18). Next, the environmental value information transmission unit 612f transmits information on the environmental value to the terminal device 900 of the other power generation company (step S20).

Then, the environmental value purchase request receiving unit 612g determines whether or not an environmental value purchase request has been received from the terminal device 900 of another power generation business operator (step S22). If an environmental value purchase request has been received, and if the conditions required for payment are met, the payment processing unit 612h performs payment processing (step S24). After that, the environmental value transmitting unit 612i transmits the environmental value to the terminal device 900 that transmitted the environmental request.

As described above, according to this embodiment, the environmental value related to logistics is calculated by subtracting the reduction in greenhouse gas emissions based on the consumption of electricity generated by solar power generation from the greenhouse gas emissions generated by transportation related to logistics. Since this environmental value can be transferred to other power generation companies for a fee, the use of environmental value is promoted by calculating the environmental value generated within the logistics supply chain as the environmental value related to logistics.

REFERENCE SIGNS LIST 100 Control system 102 Solar panel 104 Storage battery 300 Power generation business operator 350 Consumer 400 Power company 500 Warehouse 520 Vehicle 600 Server 610 Control device 612 Processor 612a Energy consumption acquisition unit 612b Greenhouse gas emission calculation unit 612c Power consumption acquisition unit 612d Greenhouse gas emission reduction calculation 612e Environmental value calculation unit 612f Environmental value information transmission unit 612g Environmental value purchase request reception unit 612h Payment processing unit 614 Memory 616 Communication interface 620 Storage device 700 Communication network 720 Wireless base station 800 Control device 900 Terminal device 1000 Environmental value calculation system

Claims (3)

a greenhouse gas emission calculation unit that calculates greenhouse gas emissions generated by transportation related to logistics;
a power consumption acquisition unit that acquires the amount of solar power consumed at the logistics base;
a greenhouse gas emission reduction calculation unit that calculates a greenhouse gas emission reduction amount based on the consumption amount;
an environmental value calculation unit that calculates an environmental value related to logistics by subtracting the reduction amount from the emission amount;
An environmental value calculation system comprising: The environmental value calculation system according to claim 1, wherein the greenhouse gas emission reduction calculation unit calculates the reduction by multiplying the consumption by an emission coefficient corresponding to the commercial electricity supplied to the logistics base. an environmental value information transmitting unit that transmits information about the environmental value to a terminal device of a power generation company;
an environmental value purchase request receiving unit that receives a purchase request for an environmental value from the terminal device of the power generation company;
a payment processing unit that performs a payment process for transferring the environmental value to the power generation company based on the purchase request;
The environmental value calculation system according to claim 1 , further comprising:

Images