Environmental Value Calculation System

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

[Technical Field]

[0001] The present invention relates to an environmental value calculation system. [Background technology]

[0002] It has been known to convert the amount of electricity generated by using natural energy sources such as solar and wind power into the amount of greenhouse gases reduced (Patent Document 1).In addition, many countries are moving forward with the introduction of carbon taxes that impose taxes on the amount of carbon dioxide emitted by companies and other entities using electricity and fuel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-88898 Summary of the Invention [Problem to be solved by the invention]

[0004] In logistics, transportation using fossil fuels as an energy source plays an important role. For example, trucks, which play a major role in logistics transportation, are primarily fueled by diesel, a fossil fuel. As a result, transportation related to logistics generates greenhouse gases.

[0005] On the other hand, as described in Patent Document 1, the amount of power generated by using natural energy sources is converted into the amount of greenhouse gas reduction.

[0006] However, the technology described in Patent Document 1 does not take into consideration the reduction of greenhouse gas emissions generated in relation to logistics, nor the relationship between the amount of greenhouse gas emissions and the reduction amount related to logistics. For this reason, it is difficult to promote the use of environmental value generated in logistics supply chains.

[0007] In view of the above-mentioned problems, an object 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. [Means for solving the problem]

[0008] The gist of the present disclosure is as follows.

[0009] (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 greenhouse gas emissions. The greenhouse gases are generated by transportation related to logistics. The power consumption acquisition unit acquires the amount of solar-powered electricity consumed at logistics bases. The greenhouse gas emission reduction calculation unit calculates the amount of greenhouse gas emission reduction based on the amount of consumption. The environmental value calculation unit calculates the environmental value related to logistics by subtracting the amount of reduction from the amount of emissions.

[0010] (2) In the environmental value calculation system described in (1) above, 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.

[0011] (3) The environmental value calculation system according to (1) above further comprises an environmental value information transmitting unit, an environmental value purchase request receiving unit, and a payment processing unit. The environmental value information transmitting unit transmits information relating to the environmental value to a terminal device of a power generation company. The environmental value purchase request receiving unit receives a purchase request for the environmental value from the terminal device of the power generation company. The payment processing unit performs payment processing to transfer the environmental value to the power generation company based on the purchase request. [Effects of the Invention]

[0012] 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. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a schematic diagram showing an example of the configuration of a fully self-consumption on-site PPA. [Figure 2] FIG. 1 is a schematic diagram showing the exterior of a warehouse equipped with a solar power generation control system. [Figure 3] FIG. 1 is a schematic diagram showing the configuration of an environmental value calculation system. [Figure 4] FIG. 2 is a block diagram showing the configuration of a server. [Figure 5] FIG. 2 is a block diagram showing the functions of a processor of the server. [Figure 6] FIG. 1 is a diagram showing unit calorific values ​​and emission coefficients according to types of fuel. [Figure 7] FIG. 1 is a diagram showing emission factors according to the power generation method of commercial electricity. [Figure 8] 10 is a flowchart showing the processing of a processor of the server. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, several embodiments according to the present disclosure will be described 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 numerals, and duplicate descriptions will be omitted as appropriate.

[0015] As an example, a 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 electricity generated by the control system 100 to the consumer 350 on-site. The power generation company 300 and the consumer 350 conclude a power purchase agreement, or 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 electricity charges to the power generation company 300.

[0016] In the case of a completely self-consumption type, all of the power generated by the control system 100 is consumed within the premises of the consumer 350. Therefore, the power generated by the control system 100 is supplied only to facilities within the premises of the consumer 350, and the power is not supplied to the power transmission network, power distribution network, etc. of other power systems.

[0017] If 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. If 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. Alternatively, the shortfall may be made up by the consumer 350 purchasing power from an existing power company 400.

[0018] 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 panels 102 of the control system 100 are installed on the roof of the warehouse 500. The control system 100 supplies solar-generated electricity to various facilities provided in the warehouse 500. The control system 100 also stores surplus electricity in a storage battery 104.

[0019] The warehouse 500 may be built on a large site, in which case the power generation company 300 may install solar panels 102 covering a large area on the roof of the warehouse 500. On the other hand, in the warehouse 500, the use of electricity may be limited to lighting and the like. For this reason, the amount of 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 all covered by the electricity generated by the control system 100 from sunlight, and the surplus electricity is stored in the storage battery 104.

[0020] Items related to logistics at warehouse 500, i.e., items carried in and out of warehouse 500, are transported on vehicles 520 shown in FIG. 2. As an example, vehicle 520 is a truck. Power generation company 300 collects and manages information on the operating status of vehicles 520 entering and leaving warehouse 500. In particular, power generation company 300 collects and manages the energy consumption, i.e., fuel usage, of each vehicle 520.

[0021] The energy consumption of vehicles 520 entering and leaving warehouse 500 results in the emission of greenhouse gases due to transportation. If vehicle 520 uses fossil fuels as fuel, greenhouse gases are emitted by burning the fossil fuels. If vehicle 520 is an electric vehicle powered by electricity, and the electricity is purchased from commercial power, and if the commercial power is generated using 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 electric power company, for example, the power source composition ratio for 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 fossil fuel-based power supply facilities is 70% of the total, the greenhouse gas emissions associated with the power consumption of an electric vehicle can be calculated as the greenhouse gas emissions when generating electricity using fossil fuels in an amount equivalent to 70% of the purchased commercial power.

[0022] If warehouse 500 is not equipped with solar power generation control system 100 and does not generate solar power at warehouse 500, the total amount of greenhouse gas emissions related to logistics at warehouse 500 will be the greenhouse gas emissions due to transportation by vehicle 520 and the greenhouse gas emissions related to the generation of commercial electricity used at warehouse 500. The greenhouse gas emissions due to transportation by vehicle 520 are the total amount of greenhouse gas emissions generated due to 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 at warehouse 500 is generated by burning fossil fuels.

[0023] On the other hand, if warehouse 500 is equipped with 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 at warehouse 500 is reduced by the amount of greenhouse gas emission reduction due to solar power generation, compared to when warehouse 500 is not equipped with solar power generation control system 100. Furthermore, in this case, the electricity consumed at warehouse 500 is basically all covered by electricity generated by solar power by control system 100, 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 at warehouse 500 is the value obtained by subtracting the amount of greenhouse gas emission reduction due to solar power generation from the greenhouse gas emissions due to transportation by vehicle 520.

[0024] Therefore, greenhouse gases are emitted during the logistics of goods being carried in and out of warehouse 500. On the other hand, greenhouse gas emissions are reduced by solar power generation control system 100 installed in warehouse 500, which is a logistics hub.

[0025] As described above, in this embodiment, greenhouse gas emissions related to logistics at the warehouse 500 are reduced by the greenhouse gas reduction amount achieved by 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 by the warehouse 500. Therefore, environmental value, i.e., carbon credits, is generated because the amount of greenhouse gas emission reduction is greater than the amount of greenhouse gas emissions. In this embodiment, the power generation company 300 issues an environmental value obtained by subtracting the amount of greenhouse gas reduction achieved by solar power generation from the amount of greenhouse gas emissions due to transportation, and other power generation companies can use the environmental value. For example, the environmental value may be a value equivalent to a non-fossil fuel certificate or a value equivalent to the "additionality" of renewable energy. The environmental value may be issued after receiving 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, or may be issued as a value equivalent to a Green Power Certificate certified by the same foundation.

[0026] For example, if another power generation company installs a solar power generation control system 100 in a factory, the factory's power consumption may be relatively large and the solar power generation may not be enough to cover all of the factory's power consumption. As an example, the other power generation company may be able to supply solar power to only 20% of the factory's power consumption. In this case, the other power generation company may purchase fossil fuel-based commercial power to cover the remaining 80% of the power consumption. In such a case, the other power generation company is not using 100% 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 effectively using 100% renewable energy. Therefore, the other power generation company that purchased the environmental value can declare that it is effectively using 100% renewable energy. Furthermore, as a result, the other power generation company will make its own efforts, such as expanding its solar power generation facilities, to reduce the cost of purchasing environmental value, which will encourage other power generation companies to use solar power.

[0027] Since greenhouse gases include gases other than carbon dioxide, greenhouse gas emissions can be expressed more specifically in carbon dioxide equivalents (CO2 equivalents: units: [t CO2eq]), or 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 explanation will use carbon dioxide as an example of a greenhouse gas.

[0028] As shown in FIG. 3 , the environmental value calculation system 1000 according to this embodiment includes a plurality of vehicles 520, a server 600 of a power generation company 300, a control device 800 of the control system 100, and terminal devices 900 of other power generation companies. The terminal devices 900 of the other power generation companies are terminals for each company, and the environmental value calculation system 1000 may include a plurality of terminal devices 900. The vehicles 520 and the server 600 can communicate with each other via a communication network 700 configured using optical communication lines 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 vehicles 520 and the server 600. The control devices 800, the terminal devices 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 devices 800, the terminal devices 900, and the server 600. 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 .

[0029] As shown in FIG. 4, the server 600 includes a control device 610 and a storage device 620.

[0030] 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 unit, a numerical calculation unit, or a graphics 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 within 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 solar power consumption, 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 signals 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.

[0031] The storage device 620 includes, for example, a hard disk drive or an optical recording medium and an access device therefor. The storage device 620 stores, for example, the latest information on the energy consumption of each vehicle 520, the amount of solar power consumption of the control system 100, and environmental value. The storage device 620 may also store computer programs for executing processes executed on the processor 612.

[0032] 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 includes 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 included in the processor 612 is a functional module implemented by, for example, a computer program running on the processor 612. In other words, each of these units included in the processor 612 is composed of the processor 612 and a program, i.e., software, for operating the processor 612. The program may be stored in the memory 614 of the control device 610 or in an externally connected recording medium. Alternatively, each of these units included in the processor 612 may be a dedicated arithmetic circuit provided in the processor 612.

[0033] The energy consumption obtaining unit 612a obtains the amount of energy consumed by transportation. Specifically, the energy consumption obtaining unit 612a obtains the amount of fuel used [kl] by transportation from each vehicle 520.

[0034] The greenhouse gas emission calculation unit 612b calculates the amount of greenhouse gas emissions generated by transportation related to physical distribution. 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 CO2] = Fuel consumption [kl] x Unit calorific value [GJ / kl] x Emission factor [t C / GJ] x Molecular weight ratio 44 / 12 [t CO2 / t C] ···(1)

[0035] In equation (1), the unit calorific value and emission coefficient vary depending on the type of fuel. Figure 6 shows the unit calorific value and emission coefficient for each fuel type, as described in the Joint Guidelines for Calculating CO2 Emissions in the Logistics Sector, Ver. 3.1 (Ministry of Economy, Trade and Industry and Ministry of Land, Infrastructure, Transport and Tourism, March 2016). For example, if the fuel is gasoline, the unit calorific value is 34.6 [GJ / kl] and the emission coefficient is 0.0183 [t·C / GJ]. In equation (1), the fuel consumption [kl] is a value acquired by the energy consumption acquisition unit 612a. If the vehicle 520 is an electric vehicle, the carbon dioxide emissions from transportation are calculated using the CO2 emission coefficient for the type of electricity used as the power source, as described in the guidelines. As described above, if the vehicle 520 is an electric vehicle, the carbon dioxide emissions from transportation are calculated using the fossil fuel usage rate of the commercial electricity used to purchase the electric vehicle's electricity. More specifically, the carbon dioxide emissions when generating an amount of electricity corresponding to the fossil fuel usage rate of the purchased commercial electricity are calculated. Therefore, if vehicle 520 is an electric vehicle, the carbon dioxide emissions [t·CO2] are calculated by multiplying the amount of electricity corresponding to the fossil fuel usage rate by the CO2 emission coefficient ( / 1,000 kWh) in FIG. 6. Furthermore, the CO2 emission coefficient differs depending on the power generation method. Therefore, the CO2 emission coefficient corresponding to the power generation method shown in FIG. 7 may be used as the CO2 emission coefficient to be multiplied by the amount of electricity corresponding to the fossil fuel usage rate of the commercial electricity. The unit calorific values ​​and emission coefficients corresponding to the types of fuel shown in FIG. 6 are stored in advance in memory 614 of control device 610.

[0036] The power consumption acquisition unit 612c acquires the amount of solar-powered power consumed at the logistics base. Specifically, the power consumption acquisition unit 612c acquires the amount of solar-powered power consumed at the warehouse 500, which is transmitted from the control device 800 of the control system 100 via the communication network 700. Here, the amount of solar-powered power consumed is the sum of the amount of power generated by the solar panels 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 panels 102 and the amount of power discharged from the storage battery 104 and acquires this data. As described above, if the amount of power generated by the control system 100 is insufficient, the shortage is made up for by discharging the power stored in the storage battery 104. Therefore, the sum of the amount of power generated by the solar panels 102 and the amount of power discharged from the storage battery 104 corresponds to the amount of solar-powered power consumed. When the amount of power generated by the solar panel 102 is greater than the amount of power consumed by the warehouse 500, resulting in surplus power generated by the solar panel 102, the amount of discharge from the storage battery 104 is 0. In this case, the amount of power consumed by solar power generation is the value obtained by subtracting the surplus power from the amount of power generated by the solar panel 102.

[0037] The greenhouse gas emission reduction calculation unit 612d calculates the greenhouse gas emission reduction amount corresponding to the reduction in greenhouse gas emissions based on the amount of electricity consumed by solar power generation acquired by the electricity consumption acquisition unit 612c. More specifically, the greenhouse gas emission reduction calculation unit 612d calculates the reduction amount by multiplying the amount of electricity consumed by solar power generation by an emission coefficient corresponding to the commercial electricity supplied to warehouse 500, which is the logistics base. Even 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 emissions reduction [t·CO2] = total amount of power generated by solar power and discharged from storage battery [kWh] × emission coefficient [t·CO2 / kWh] (2)

[0038] In equation (2), the emission coefficient is determined as shown in FIG. 7 according to the power generation method of the commercial electricity supplied to the warehouse 500. For example, if the commercial electricity supplied to the warehouse 500 from the electric power company 400 is generated from an oil-fired power plant and the oil-fired power plant is used as the power source, the emission coefficient is 0.000738 [t·CO2 / kWh]. If the sum of the amount of electricity generated by solar power generation and the amount of electricity discharged from the storage battery 104 is P [kWh], the amount of commercial electricity purchased from the electric power company 400 is reduced by the amount of electricity P [kWh], thereby reducing the amount of carbon dioxide emissions. The carbon dioxide emission reduction calculated using equation (2) corresponds to the amount of carbon dioxide emissions reduced compared to when the sum of the amount of electricity generated by solar power generation and the amount of electricity discharged from the storage battery 104 is purchased from commercial electricity. The fossil fuel usage rate for commercial electricity may also be taken into account when calculating the carbon dioxide emission reduction. For example, if the ratio of fossil fuel-based power supply facilities to the total commercial electricity supply is 70% of the total, the carbon dioxide emission reduction may be 70% of the value calculated using equation (2).

[0039] The environmental value calculation unit 612e calculates the environmental value related to physical distribution 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 using the following formula (3). Environmental value [t·CO2] = carbon dioxide emissions from transportation [t·CO2] - carbon dioxide emissions reduction [t·CO2] ···(3)

[0040] As described above, when the solar power generation control system 100 is installed in the warehouse 500, the amount of electricity generated by the solar power generation control system 100 is often greater than the electricity consumed by the warehouse 500. If 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.

[0041] The processes performed 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 for each predetermined time interval.

[0042] The environmental value information transmitting unit 612f transmits information about the environmental value calculated by the environmental value calculating unit 612e to the terminal devices 900 of the other power generation businesses via the communication network 700. The information about 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 about the environmental value is displayed on the terminal devices 900 of the other power generation businesses.

[0043] When another power generation business operator, having seen the information about the environmental value displayed on the terminal device 900, transmits a purchase request for the environmental value from the terminal device 900, the environmental value purchase request receiving unit 612g receives the transmitted purchase request for the environmental value. The purchase request for the environmental value includes a request to purchase the environmental value, information for specifying the environmental value desired to be purchased, and identification information for identifying the other power generation business operator wishing to purchase the environmental value.

[0044] 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 payment processing to transfer the environmental value to another power generation business operator. For example, the payment processing unit 612h performs payment processing when it confirms that the purchase price of the environmental value has been received from the other power generation business operator that sent the purchase request.

[0045] 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 transfers the environmental value to the other power generation company, completing the purchase procedure for the environmental value by the other power generation company. It is more preferable that the environmental value be transferred after receiving the above-mentioned authentication. The payment process may also utilize a normal electronic payment service. The environmental value may be operated, for example, via a peer-to-peer computer network, such as a blockchain network. In this case, the payment process may be performed by transaction processing on the blockchain network. The server 600 of each power generation company 300 may also function as a node in the blockchain network. The environmental value may also be a token or cryptocurrency using a blockchain.

[0046] The power generation business operator 300 or another power generation business operator who has received the environmental value 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. Furthermore, the power generation business operator 300 can use the environmental value for branding its own products.

[0047] Next, the chronological flow of processing by processor 612 will be explained with reference to Fig. 8. First, energy consumption acquisition unit 612a acquires energy consumption due to transportation from each vehicle 520 (step S10). Next, greenhouse gas emission calculation unit 612b calculates the amount of greenhouse gas emission due to transportation (step S12).

[0048] 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 corresponding to the amount of greenhouse gas emission reduction (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.

[0049] Next, the environmental value calculation unit 612e calculates the environmental value 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 (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 business operator (step S20).

[0050] Next, 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), and if an environmental value purchase request has been received, the payment processing unit 612h performs payment processing if the conditions necessary for payment are met (step S24). Thereafter, the environmental value transmitting unit 612i transmits the environmental value to the terminal device 900 that transmitted the environmental request.

[0051] As described above, according to this embodiment, the environmental value related to logistics is calculated by subtracting the greenhouse gas emission reduction amount based on the consumption of electricity generated by solar power generation from the greenhouse gas emission amount generated by transportation related to logistics. Because this environmental value can be transferred to other power generation companies for a fee, calculating the environmental value generated within the logistics supply chain as the environmental value related to logistics promotes the use of environmental value. [Explanation of symbols]

[0052] 100 Control System 102 Solar Panels 104 Storage battery 300 power generation companies 350 Consumer 400 electric power companies 500 warehouse 520 vehicles 600 servers 610 Control device 612 processor 612a Energy consumption acquisition unit 612b Greenhouse Gas Emissions Calculation Section 612c Power consumption acquisition part 612d Calculation of greenhouse gas emission reductions 612e Environmental Value Calculation Department 612f Environmental Value Information Transmission Department 612g Environmental Value Purchase Request Reception Department 612h Payment processing section 614 memory 616 Communication Interface 620 Storage Device 700 Communication Network 720 Wireless Base Station 800 Control Device 900 Terminal Equipment 1000 Environmental Value Calculation System

Claims

1. 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-generated 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; Equipped with The greenhouse gas emission calculation unit calculates the emissions based on the amount of fuel used by the vehicle used for the transportation and a unit calorific value and an emission coefficient that differ depending on the type of fuel in the vehicle.

2. 2. The environmental value calculation system according to claim 1, wherein the greenhouse gas emission reduction calculation unit calculates the reduction amount by multiplying the consumption amount by an emission coefficient corresponding to commercial electricity supplied to the logistics base.

3. 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 payment processing to transfer the environmental value to the power generation company based on the purchase request; The environmental value calculation system according to claim 1 , further comprising:

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