Method, information processing apparatus, and system

Abstract

To provide an information processing apparatus, a system, and a method for determining procurement of electric power whose environmental value is certified.SOLUTION: A method executed by an information processing apparatus, the method including: acquiring a desired condition related to procurement power and a required amount of power from each tenant of a customer; calculating a desired amount of power and an environmental value based on the desired amount of power for each demand having the same desired condition; temporarily assigning, for each demand, a predicted value of an amount of power generation of renewable energy with a proven environmental value to the desired amount of power; and externally procuring, when the predicted value of the amount of power generation is insufficient for the desired amount of power for each demand, differential between the predicted value of the amount of power generation and the desired amount of power for each demand such that a procurement cost is minimized.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a method, an information processing device, and a system, and more particularly to a method, an information processing device, and a system for determining the procurement of environmental value and allocating the required environmental value. [Background technology]

[0002] Non-fossil fuel energy sources have two values: value as electricity and environmental value. As global decarbonization progresses, there is a growing need to procure electricity with proven environmental value. In response to this, efforts are underway such as RE100 (Renewable Energy 100%), an international initiative that aims to cover the electricity used by companies in their business with 100% renewable energy (hereafter referred to as renewable energy). In response to the growing need for environmental value, systems for trading environmental value, such as the non-fossil fuel value trading market and the J-Credit Scheme, have been established, allowing retail electricity companies and consumers to buy and sell environmental value.

[0003] Patent Document 1 discloses a technology for a retail electricity supplier that manages both generators that generate electricity using renewable energy and generators that generate electricity using energy other than renewable energy, and that creates an operation plan for the generators so as to reduce both power generation costs and carbon dioxide emissions. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-159624 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technology described in Patent Document 1 creates an operation plan by searching for a solution that reduces power generation costs and carbon dioxide emissions. Therefore, depending on the conditions, the technology described in Patent Document 1 may not be able to achieve the target renewable energy utilization rate.

[0006] The present disclosure has been made in view of the above, and aims to provide an information processing device, system, and method that determine the procurement of environmental value according to a user's desire. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, one aspect of the present disclosure is a method executed by an information processing device, which obtains desired conditions for procurement of electricity and the amount of electricity required from each tenant of a consumer, calculates the desired amount of electricity and an environmental value based on the desired amount of electricity for each demand having the same desired conditions, provisionally allocates a predicted power generation amount of renewable energy with proven environmental value to the desired amount of electricity for each demand, and when the predicted power generation amount is insufficient for the desired amount of electricity for each demand, procures the difference externally so as to minimize procurement costs.

[0008] In order to solve the above-mentioned problems, one aspect of the present disclosure is an information processing device having a memory unit and a processor, wherein the processor executes instructions stored in the memory unit to obtain desired conditions for procurement of electricity and the amount of electricity required from each tenant of a consumer, calculates the desired amount of electricity and an environmental value based on the desired amount of electricity for each demand having the same desired conditions, provisionally allocates, for each demand, a predicted power generation amount of renewable energy with proven environmental value to the desired amount of electricity, and when the predicted power generation amount is insufficient for the desired amount of electricity for each demand, procures the difference externally so as to minimize procurement costs.

[0009] In order to solve the above-mentioned problems, one aspect of the present disclosure is a system including a memory unit and an information processing device having a processor, wherein the processor executes instructions stored in the memory unit to obtain desired conditions for procurement of electricity and the amount of electricity required from each tenant of a consumer, calculates the desired amount of electricity and an environmental value based on the desired amount of electricity for each demand having the same desired conditions, provisionally allocates, for each demand, a predicted power generation amount of renewable energy with proven environmental value to the desired amount of electricity, and when the predicted power generation amount is insufficient for the desired amount of electricity for each demand, procures the difference externally so as to minimize procurement costs. [Brief explanation of the drawings]

[0010] [Figure 1] 1 shows a schematic configuration of a supply and demand matching system for electricity or the like with certified environmental value according to one embodiment of the present disclosure. [Figure 2] 1 illustrates an example of a hardware configuration for realizing an information processing device according to an embodiment of the present disclosure. [Figure 3] 1 shows a flow of processing performed in an information processing device according to an embodiment of the present disclosure. [Figure 4] 10 illustrates an example of a data structure of desired condition information related to power of each tenant according to an embodiment of the present disclosure. [Figure 5] FIG. 10 is a diagram illustrating an example of a data structure of demand information classified by the same desired conditions according to desired condition information, according to an embodiment of the present disclosure. [Figure 6] 10 shows a process flow for setting the type of power to be procured, the amount of power to be procured, etc. so as to minimize the procurement cost of the amount of externally procured power according to an embodiment of the present disclosure. [Figure 7] 10 illustrates a flow of a process for allocating environmental value for an amount of electricity with a supply-demand gap, which is performed in an information processing device according to an embodiment of the present disclosure. [Figure 8] 10 illustrates the relationship between a desired amount of power, a predicted value of the amount of power generated, and an amount of power procured externally, as well as the relationship between a desired environmental value and an amount of environmental value procured, according to an embodiment of the present disclosure. [Figure 9] 1 illustrates the relationship between the amount of power actually consumed for each demand, the amount of power desired, and the corresponding environmental value according to one embodiment of the present disclosure. [Figure 10] 1 shows the relationship between the total amount of electricity actually consumed by each tenant at a consumer and the corresponding environmental value, and the total amount of electricity actually procured and the corresponding environmental value according to one embodiment of the present disclosure. [Figure 11] 1 shows the relationship between the amount of power consumed per demand and the amount of power ultimately distributed, and the relationship between the environmental value corresponding to the amount of power consumed per demand and the amount of power with the environmental value ultimately distributed, according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0011] [Description of the embodiments of the present disclosure] First, the contents of the embodiment of the present disclosure will be listed and described. One embodiment of the present disclosure has the following configuration.

[0012] [Configuration 1] A characteristic configuration of the method for achieving the above-mentioned objective is that the method is executed by an information processing device, and acquires the desired conditions for procurement of electricity and the amount of electricity required from each tenant (a to c, etc.) of a consumer (G1, G2, etc.) (acquisition unit 11, S1), calculates the desired amount of electricity (Preq1, Preq2) for each demand (DE1, DE2) with the same desired conditions and an environmental value (EVreq1, EVreq2) based on the desired amount of electricity (classification unit 12, S2), provisionally allocates to each demand (DE1, DE2) a predicted power generation amount (RPof_fc / F=A, RPon_fc / F=B) of renewable energy with proven environmental value for the desired amount of electricity (setting unit 13, S3), and when the predicted power generation amount (A1+B1) is insufficient for the desired amount of electricity (Preq1, Preq2) for each demand (DE), the difference is procured externally so as to minimize procurement costs (setting unit 13, S3).

[0013] [Configuration 2] Another characteristic configuration of the method disclosed herein is that the additional procurement of the shortage environmental value at the consumer is determined (distribution unit 15, S5) so as to minimize procurement costs based on the total environmental value (EVfin1+EVfin2) corresponding to the total amount of electricity actually consumed by the tenant (Pfin1+Pfin2) and the environmental value based on the total desired amount of electricity for each demand (EVreq1+EVreq2).

[0014] [Configuration 3] Another characteristic configuration of the method according to the present disclosure is that the allocation of the environmental values ​​(EVreq1, EVreq2) based on the desired amount of electricity and the shortage environmental value to the consumers is determined (distribution unit 15, S5).

[0015] [Configuration 4] Another characteristic configuration of the method according to the present disclosure is that the environmental value and shortage environmental value to be allocated to the tenant are determined based on the desired conditions of the tenant, the environmental value determined to be allocated to the consumer, and the shortage environmental value (distribution unit 15, S5).

[0016] [Configuration 5] Another characteristic configuration of the method according to the present disclosure is that the additional procurement of the shortage environmental value is procured from outside or procured among demands (distribution unit 15, S5).

[0017] [Configuration 6] Another characteristic configuration of the method disclosed herein is that the shortage environmental value is procured between the demands when there is a shortage of provisionally allocated environmental value compared to the environmental value corresponding to the amount of electricity actually consumed at the consumer (YES in S52), and when there is excess demand (DE1) in which the environmental value (EVfin1) corresponding to the amount of electricity consumed actually (Pfin1) is greater than the environmental value (Evreq1) based on the desired amount of electricity (YES in S53), by allocating the environmental value of the excess demand to the shortage environmental value (distribution unit 15, S54).

[0018] [Configuration 7] Another characteristic configuration of the method disclosed herein is that the shortage of environmental value is procured from outside (distribution unit 15, S55) when there is a shortage of provisionally allocated environmental value at the consumer compared to the environmental value corresponding to the amount of electricity actually consumed (YES in S52), and when there is no excess demand for the environmental value (EVfin1) corresponding to the amount of electricity actually consumed (Pfin1) compared to the environmental value based on the desired amount of electricity (NO in S53).

[0019] [Configuration 8] Another characteristic configuration of the method disclosed herein is that the additional procurement of the difference is performed by calculating (setting unit 13, S34) the amount of externally procured power (Ep1, Ep2) based on the desired amount of power (Preq1, Preq2) for each demand (DE1, DE2) and the predicted power generation amount of renewable energy generated at the consumer (G1) (RPof_fc / F=A, RPon_fc / F=B), and setting (setting unit 13, S35) various parameters (C1, D1, Evpc1) related to externally procured power for each demand (DE1) so as to minimize the procurement cost of the amount of externally procured power.

[0020] [Configuration 9] Another characteristic configuration of the method according to the present disclosure is that procuring the shortage environmental value from outside includes presenting procurement conditions to the renewable energy certificate trading market and procuring it from the renewable energy certificate trading market.

[0021] [Configuration 10] Another characteristic configuration of the method according to the present disclosure is that the various parameters related to the externally procured power include a type of power to be procured externally and an amount of externally procured power for each type of power to be procured externally.

[0022] [Configuration 11] Another characteristic configuration of the method according to the present disclosure is that the desired conditions include at least one of the percentage of renewable energy used by the tenant, whether additionality is taken into consideration, the power generation area, and the purpose of using the renewable energy.

[0023] [Configuration 12] A characteristic configuration of an information processing device for achieving the above object is an information processing device including a storage unit and a processor, wherein the processor executes instructions stored in the storage unit to acquire desired conditions for procurement of power and the amount of power required from each tenant (a to c, etc.) of a consumer (G1, G2) (acquisition unit 11, S1), and for each demand (DE1, DE2) having the same desired conditions, acquires a desired amount of power (Preq1, Preq2) and an environmental value (EVreq1, EVreq2) based on the desired amount of power. The system calculates (classification unit 12, S2) predicted power generation amounts (RPof_fc / F=A, RPon_fc / F=B) of renewable energy with certified environmental value for the desired amount of power for each demand (DE1, DE2) (setting unit 13, S3). When the predicted power generation amounts (A1+B1) are insufficient for the desired amount of power (Preq1, Preq2) for each demand (DE), the difference is procured externally so as to minimize the procurement cost.

[0024] [Configuration 13] Another characteristic configuration of the information processing device according to the present disclosure is that it determines the additional procurement of the shortage environmental value of the consumer so as to minimize procurement costs based on the total environmental value (EVfin1+EVfin2) corresponding to the total amount of electricity actually consumed by the tenant (Pfin1+Pfin2) and the environmental value based on the total desired amount of electricity for each demand (EVreq1+EVreq2) (distribution unit 15, S5).

[0025] [Configuration 14] Another characteristic configuration of the information processing device according to the present disclosure is that it determines the allocation of the environmental values ​​(EVreq1, EVreq2) based on the desired amount of electricity and the shortage environmental value to the consumers (distribution unit 15, S5).

[0026] [Configuration 15] A characteristic configuration of a system for achieving the above object is a system including a storage unit and an information processing device including a processor, wherein the processor executes instructions stored in the storage unit to acquire desired conditions for procurement of power and the amount of power required from each tenant (a to c, etc.) of a consumer (G1, G2) (acquisition unit 11, S1), and acquires desired power amounts (Preq1, Preq2) for each demand (DE1, DE2) having the same desired conditions and an environmental value (EVre) based on the desired amount of power. The system calculates (classification unit 12, S2) the predicted power generation amount (RPof_fc / F=A, RPon_fc / F=B) of renewable energy with certified environmental value for the desired amount of power for each demand (DE1, DE2) (setting unit 13, S3), and when the predicted power generation amount (A1+B1) is insufficient for the desired amount of power (Preq1, Preq2) for each demand (DE), the difference is procured externally so as to minimize the procurement cost.

[0027] [Configuration 16] Another characteristic configuration of the system according to the present disclosure is that the additional procurement of the shortage environmental value of the consumer is determined (distribution unit 15, S5) so as to minimize procurement costs based on the total environmental value (EVfin1+EVfin2) corresponding to the total amount of electricity actually consumed by the tenant (Pfin1+Pfin2) and the environmental value based on the total desired amount of electricity for each demand (EVreq1+EVreq2).

[0028] [Configuration 17] Another characteristic configuration of the system according to the present disclosure is that the allocation of the environmental value (EVreq1, EVreq2) based on the desired amount of electricity and the shortage environmental value to the consumer is determined (distribution unit 15, S5).

[0029] [Details of the embodiments of the present disclosure] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the following description is merely an example and is not intended to limit the technical scope of the present invention to the following embodiments. In the drawings, identical or similar elements are designated by identical or similar reference symbols, and duplicate descriptions of identical or similar elements may be omitted in the description of each embodiment. Furthermore, features shown in each embodiment may also be applied to other embodiments as long as they are not mutually inconsistent. However, the embodiments of the present disclosure are not necessarily limited to such embodiments. It will be apparent to those skilled in the art that the embodiments of the present disclosure can take various forms within the scope defined in the claims.

[0030] [Configuration of a system that matches supply and demand of electricity with proven environmental value and / or environmental value] First, an overview of a supply-demand matching system for electricity with certified environmental value and / or the environmental value itself certified by various certificates, including an information processing device 1 according to an embodiment of the present disclosure, will be described. As shown in Fig. 1, the supply-demand matching system for environmental value includes a renewable energy certificate trading market 61, which is a trading venue for certified environmental value such as green power certificates, J-Credits, renewable energy certificates (RECs), and non-fossil energy certificates; a retail electricity supplier 51; the information processing device 1 configured to enable trading of renewable energy-related values; and consumers G1 and G2, each consisting of multiple tenants a-c and d-f. Each of consumers G1 and G2 may be equipped with at least a portion of an on-site power storage facility 31, an on-site power generation facility 33, and an off-site power generation facility 41. Tenants a to c and d to f are connected to an information processing device 1 and an electricity retailer 51 via a network (NW) 2 such as a LAN (Local Area Network), a WAN (Wide Area Network), a VPN (Virtual Private Network), or the Internet.

[0031] Note that FIG. 1 is an example, and consumer G1 may have two or more on-site power generation facilities 33, power storage facilities 31, and off-site power generation facilities 41. Furthermore, each consumer may have one to two, or four or more tenants. In the example of FIG. 1, the renewable energy certificate trading market 61 is connected to the information processing device 1 via a network 3, but it may also be connected via a network 2. In other words, the various facilities, the number of devices, and the network configuration provided in the supply and demand matching system are not limited to the example shown in FIG. 1. In the example of FIG. 1, dotted lines indicate the flow of electricity, and solid lines indicate the flow of data.

[0032] Tenants a to c and d to f are facilities such as stores and offices that receive and use electricity, as well as common areas of consumers. Each of tenants a to c and d to f may be equipped with facility equipment 20, a meter 21 that measures the amount of energy used by the tenant, a management device 22, a communication device 23, and a meter 24. The facility equipment 20 is equipment that uses energy within the facilities of tenants a to c and d to f, such as air conditioning equipment, lighting equipment, office equipment, and refrigeration equipment. The meter 21 measures the amount of power used by each tenant's facility equipment 20. The communication device 23 has a communication interface and transmits information about the facility equipment 20 managed and measured by the management device 22 to the information processing device 1 via the network 2. The meter 24 is installed by the electricity transmission and distribution company and measures the power supplied to each tenant by the electricity retailer 51.

[0033] The management device 22 provided in the tenants a to c and d to f manages various information such as the energy consumption of the facility equipment 20. When the measurement value measured by the meter 21 is not the amount of power, for example, a current value, the management device 22 can calculate the amount of power from the measurement value. The management device 22 can have a current monitoring function that performs measurement and signal conversion / output, and a central monitoring function that performs necessary calculations based on the monitored signals. Furthermore, the management device 22 may acquire and manage various information such as the desired amount of power required obtained from consumers and tenants, as well as information regarding the amount of power procured, the type of power procured, and power with certified environmental value (hereinafter also referred to as environmental value) from the information processing device 1. The management device 22 may be provided for each consumer G1 and G2, rather than for each tenant a to c and d to f.

[0034] Tenants a-c and d-f can not only directly use electricity derived from renewable energy through consumers G1 and G2, but also procure environmental value in the form of certificates such as green power certificates, J-credits, and non-fossil certificates from the renewable energy certificate trading market 61 and retail electricity suppliers 51 through consumers G1 and G2. These certificates indicate that at least a portion of the electricity generated by renewable energy power generation facilities is renewable energy. Each tenant can procure the electricity and environmental value they use based on their desired power procurement conditions. Note that environmental value is measured in units such as kWh and t-CO2, but these units can be converted as needed.

[0035] The methods for procuring electricity derived from renewable energy through consumers G1 and G2 of each of tenants a to c and d to f include (a) procurement from on-site power generation facility 33, which is a renewable energy power generation facility on the consumer's premises, (b) procurement from off-site power generation facility 41, which is an off-site renewable energy power generation facility outside the consumer's premises, or (c) procurement from a retail electricity supplier 51. Each of tenants a to c and d to f can also procure electricity with a set RE ratio from retail electricity supplier 51.

[0036] Furthermore, each of the tenants a to c, d to f, and consumers G1 and G2 can purchase green power certificates, renewable energy certificates, etc. These certificates can be purchased either directly from the renewable energy certificate trading market 61 or from a retail electricity supplier 51, an intermediary business, etc.

[0037] The power storage facility 31 is located on the premises of a consumer and charges and discharges electricity. The power storage facility 31 can record various information including information on the power being charged and discharged, and at least part of information on whether the power being charged and discharged is renewable energy or not. The power storage facility 31 is equipped with a meter 32 that measures the amount of discharged or stored electricity.

[0038] The on-site power generation facility 33 is located on the premises of the consumer and generates electricity derived from renewable energy with proven environmental value. The on-site power generation facility 33 is a power generation facility that uses renewable energy that exists or circulates in nature, such as a hydroelectric power generation facility, a wind power generation facility, a geothermal power generation facility, or a solar power generation facility. The on-site power generation facility 33 can supply electricity to each of the tenants a to c according to the amount calculated by the information processing device 1.

[0039] The on-site power generation facility 33 is equipped with a meter 34 that measures the amount of electricity generated. The electricity generated by the on-site power generation facility 33 can be converted to be equal to an "environmental value" (RE100). Therefore, the amount of electricity for which the environmental value has been certified can be calculated from the amount of electricity generated measured by the meter 34.

[0040] The off-site power generation facility 41 is located outside the premises of the consumer and can generate electricity derived from renewable energy with proven environmental value. The off-site power generation facility 41 is, for example, a hydroelectric power generation facility, a wind power generation facility, a geothermal power generation facility, or a solar power generation facility, and is a renewable energy power generation facility. The off-site power generation facility 41 can supply power to each of the tenants a to c according to the amount calculated by the information processing device 1.

[0041] The off-site power generation facility 41 is equipped with a meter 42 that measures the amount of electricity generated. The amount of electricity generated by the off-site power generation facility 41 can be converted to be equal to an "environmental value" (RE100). Therefore, the amount of electricity whose environmental value has been certified (environmental value) can be calculated from the amount of electricity generated measured by the meter 42.

[0042] The information processing device 1 can procure the amount of electricity and environmental value requested by each of the consumers G1 and G2 and each of the tenants a to c and d to f from the renewable energy certificate trading market 61, the retail electricity supplier 51, etc. Furthermore, the information processing device 1 can provide the consumers, tenants, etc. with certificates including the distribution results of the amount of electricity and environmental value for each consumer and tenant.

[0043] The electricity retailer 51 can supply electricity or electricity with certified environmental value to each consumer or tenant. The electricity retailer 51 can transmit at least a portion of the renewable energy certificate, tenant contract information, and tenant billing information to the information processing device 1 via the network 2. The meter 52 is placed in the consumer's facility or near the consumer, and measures the electricity that the electricity retailer 51 supplies to each consumer.

[0044] In the supply and demand matching system, the information processing device 1 may be a device of a data center management company, and tenants a to c and d to f may be facilities used by users within the data center. The power storage facility 31, on-site power generation facility 33, and off-site power generation facility 41 may be managed by the data center management company. The data center management company can execute various functions of the information processing device 1 to manage the procurement of environmental value by tenants who use the data center. The meter 21 can obtain measurement values ​​for each circuit supplying power to racks within the data center, each outlet bar used within the rack, each room in the data center where a server is installed, each floor, etc.

[0045] In the following description, for simplicity of explanation, a case will be exemplified in which the information processing device 1 distributes the amount of electricity with environmental value to the tenants a to c of the consumer G1.

[0046] [Controller function block] Next, a description will be given of functional blocks of the information processing device 1. The information processing device 1 shown in Fig. 1 includes an acquisition unit 11, a classification unit 12, a setting unit 13, a calculation unit 14, a distribution unit 15, a notification unit 16, and a storage unit 17.

[0047] The acquisition unit 11 acquires desired condition information 71 regarding the power required by each of the tenants a to c via the network (NW) 2 and stores the information in the storage unit 17. The desired condition information 71 may include, but is not limited to, the proportion of renewable energy in the power procured by each tenant (renewable energy proportion), whether or not to procure power with additionality that encourages investment in new renewable energy power generation facilities (whether or not additionality is considered), the purpose of use, the power generation region, and the desired power value. The desired condition information 71 may include, as the desired power value, the desired amount of power (kWh) presented by each of the tenants a to c, or the rated value (kW) of the desired power presented by the tenants a to c. When the desired power value presented by the tenants a to c is the rated value (kW), the acquisition unit 11 can calculate the desired amount of power (kWh) based on the presented rated value (kW). The desired amount of power (kWh) may be calculated by the information processing device 1, each of the tenants a to c, or the consumer.

[0048] The classification unit 12 extracts the same desired conditions from the desired condition information 71 acquired from each of the tenants a to c, classifies the demands having the same desired conditions (demands DE1, DE2, DE3, ...), and calculates the total desired energy (Preq) for each classified demand, and the energy (EVreq) for which environmental value has been proven, which is calculated from the total energy. In the present disclosure, the desired condition information 71 classified by the same desired conditions is referred to as "demand."

[0049] The setting unit 13 calculates predicted values ​​of renewable power to be generated by the renewable energy power generation facility (off-site power generation predicted value: RPof_fc, on-site power generation predicted value: RPon_fc). The setting unit 13 also provisionally allocates the calculated predicted values ​​of renewable power for each demand, and can calculate the shortfall in the desired amount of power for each demand as the amount of externally procured power (Ep). Furthermore, the setting unit 13 can set the type of power to be procured externally and the amount of power procured for each type, and procure the power from the retail electricity supplier 51, etc., so as to minimize the procurement cost of the amount of externally procured power. Details of the processing by the setting unit 13 will be described in detail with reference to FIG. 6 (corresponding to S3 in FIG. 3).

[0050] The calculation unit 14 acquires the power consumption measured by the meters 21 provided for each of the tenants a to c, and calculates the power consumption (Pfin) actually consumed for each demand (demands DE1, DE2, DE3, ...). The calculation unit 14 also calculates the difference (Pfin - Preq) between the actual power consumption (Pfin) for each demand and the total desired amount of power calculated for each demand (Preq). When this difference is positive, that is, when the actually consumed power consumption (Pfin) is greater than the total desired amount of power for each demand (Preq), the calculation unit 14 calculates the insufficient amount of power with environmental value (deficient environmental value) corresponding to this difference. When this difference is negative, that is, when the total desired amount of power for each demand (Preq) is greater than the actually consumed power consumption (Pfin), the calculation unit 14 calculates the surplus amount of power with environmental value (surplus environmental value) corresponding to this difference.

[0051] The distribution unit 15 can distribute surplus environmental value to tenants that are short of environmental value or to demand. The distribution unit 15 can additionally procure the shortage environmental value that could not be met even after distribution among consumers by presenting procurement conditions to the retail electricity supplier 51 or the renewable energy certificate trading market 61. The distribution unit 15 can store the additionally procured environmental value in the memory unit 17. Details of the processing of the distribution unit 15 will be described in detail with reference to FIG. 7 (corresponding to step S5 in FIG. 3).

[0052] The main causes of the supply-demand gap in environmental value are a sudden increase in demand, breakdown of power generation equipment, fluctuations in the amount of renewable energy generated due to weather conditions, etc. The distribution unit 15 adjusts the amount of electricity supplied to each tenant and the environmental value in order to reduce the supply-demand gap.

[0053] The notification unit 16 notifies each of the consumer tenants a to c of the distribution results, additional procurement results, etc. Under the current system, non-fossil fuel certificates provided by the electricity retailer 51 cannot be reused. According to the present disclosure, each tenant can obtain a non-fossil fuel certificate with the ownership of the rights determined based on the results notified by the notification unit 16, and can use the environmental value they have obtained for themselves.

[0054] The storage unit 17 stores information related to power control of the consumer G1 and tenants a to c. The storage unit 17 can also store desired condition information 71 related to the power required by the tenants a to c, and demand information 72 including the desired amount of power and environmental value for each demand. The storage unit 17 can also store supply and demand gap information 73. The supply and demand gap information 73 can include the shortage amount of power with environmental value attached and the surplus amount of power with environmental value attached for each demand.

[0055] [Hardware configuration of power control device] FIG. 2 illustrates an example of a hardware configuration for realizing the information processing device 1 according to an embodiment of the present disclosure.

[0056] 2, the information processing device 1 can be realized by, for example, a computer including a processor 102, a main memory device 103, a communication interface 104, an auxiliary memory device 105, and an input / output (I / O) 106, which are connected via a bus 101, and a program that controls these hardware resources. The information processing device 1 may also include a display device 107 (not shown) connected via the bus 101.

[0057] The main memory device 103 pre-stores programs for the processor 102 to perform various controls and calculations. The processor 102 and the main memory device 103 implement the functions of the information processing device 1, such as the acquisition unit 11, classification unit 12, setting unit 13, calculation unit 14, distribution unit 15, and notification unit 16 shown in FIG.

[0058] The communication interface 104 is an interface circuit for connecting the information processing device 1 and various external electronic devices via a network. The communication interface 104 can receive desired condition information and desired amounts of power required from the management devices 22 of the tenants a to c described in Fig. 1. The communication interface 104 can also transmit the amount of power (kWh) and environmental value (kWh) to be distributed, determined by the distribution unit 15, to the management devices 22 of the tenants a to c.

[0059] The auxiliary storage device 105 is composed of a readable / writable storage medium and a drive for reading and writing various information such as programs and data from and to the storage medium. The auxiliary storage device 105 can use a semiconductor memory such as a hard disk or flash memory as the storage medium.

[0060] The auxiliary storage device 105 has a program storage area for storing control programs executed by the information processing device 1. The auxiliary storage device 105 has an area for storing programs for calculating the desired amount of power and environmental value for each demand, and a program for distributing the surplus or shortage to each tenant based on the supply-demand gap between the environmental value corresponding to the amount of power procured for each demand and the environmental value corresponding to the amount of power actually used. The auxiliary storage device 105 realizes the storage unit 17 described in FIG. 1.

[0061] The input / output I / O 106 is configured by an I / O terminal for inputting signals from an external device and outputting signals to an external device.

[0062] FIG. 3 shows a flow 300 of processing performed in the information processing device 1 according to one embodiment of the present disclosure.

[0063] First, in step S1, the acquisition unit 11 acquires desired condition information 71 related to power and a desired amount of power required from the consumer G1 via the network (NW) 2, and stores them in the storage unit 17.

[0064] FIG. 4 illustrates an example of a data structure of desired condition information 71 for each tenant regarding electricity according to an embodiment of the present disclosure. The desired condition information 71 includes, for example, items such as the percentage of renewable energy in the electricity, whether additionality is considered, and the purpose of use, and is associated with a tenant identifier and the desired amount of electricity desired by each tenant. The "renewable energy percentage" item indicates the percentage of renewable energy in the electricity procured by the tenant, and can be specified between 0 and 100%. The "additionality consideration" item indicates whether or not to procure electricity with additionality that encourages investment in new renewable energy power generation facilities. The "purpose of use" item is a law, standard, or the like used by the tenant to indicate their renewable energy utilization efforts. The "purpose of use" item can include the Act on the Rational Use of Energy (Energy Conservation Act), the Act on Promotion of Global Warming Countermeasures (Global Warming Act), RE100, and the like. Note that the items in the data structure of the desired condition information 71 are not limited to those illustrated in FIG. 4 and may also include the "power generation area" item. The item "power generation area" is the area where the power generation facility that generates the electricity is located. The tenant can specify the "power generation area" in a specific electricity supply contract.

[0065] Next, in step S2, the classification unit 12 extracts the same desired conditions from the desired conditions specified by each tenant, and groups the demands having the same desired conditions.

[0066] As shown in Fig. 4, different tenants may specify the same desired condition information. In the example of Fig. 4, tenant a and tenant d specify the same desired conditions (renewable energy ratio "70%", additionality consideration "yes", purpose of use "Energy Conservation Act, Global Warming Act"). Tenant c and tenant e specify the same desired conditions (renewable energy ratio "0%", additionality consideration "no", purpose of use "none"). The classification unit 12 extracts tenants with the same desired conditions and groups them together.

[0067] For ease of explanation, the following explanation assumes that demand DE1 consists of information for tenants a+d, demand DE2 consists of information for tenant b, and demand DE3 consists of information for tenants c+e. In addition, the explanation will be given assuming that the presence or absence of consideration for additionality and the power generation area are not taken into account.

[0068] 3, in step S2, the classification unit 12 further calculates the total amount of desired power required for each classified demand, and the amount of power (environmental value) for which environmental value is certified, calculated from the total desired amount of power. The environmental value for each demand is calculated by multiplying the total amount of procured power by the proportion of renewable energy specified in the desired conditions.

[0069] Fig. 5 is a diagram showing an example of the data structure of demand information 72 classified by the same desired conditions in accordance with the desired condition information 71 of Fig. 4 according to an embodiment of the present disclosure. The demand information 72 includes, for example, items such as desired energy and energy with environmental value calculated from the desired energy, and is associated with each demand (DE1, DE2, DE3, ...). Hereinafter, the number "1" following each symbol Preq, EVreq, ... indicates that it relates to demand DE1, the number "2" indicates that it relates to demand DE2, and the number "3" indicates that it relates to demand DE3.

[0070] If the total amount of energy requested by demand DE1 is Preq1, then the amount of environmental-value-attached energy requested by demand DE1 is Preq1 × 70% (this will be referred to as EVreq1), since the renewable energy share is 70%. Similarly, if the total amount of energy requested by demand DE2 is Preq2, then the amount of environmental-value-attached energy requested by demand DE2 is Preq1 × 100% (this will be referred to as EVreq2). If the total amount of energy requested by demand DE3 is Preq3, then demand DE3 specifies a renewable energy share of 0%, so the amount of environmental-value-attached energy requested by demand DE3 is Preq3 × 0% = 0. This determines the amount of energy requested by each demand DE1 to D3 (Preq1, Preq2, Preq3) and the amount of environmental-value-attached energy requested by each demand (EVreq1, EVreq2, 0). Demand DE3 does not request environmental-value-attached energy (renewable energy share 0%), so the amount of environmental-value-attached energy is 0.

[0071] Next, returning to FIG. 3 , in step S3, the setting unit 13 determines the type of electricity to be procured, the amount of electricity to be procured for each type of electricity, and the procured environmental value based on the desired conditions and desired amount of electricity (Preq) for each demand (DE1, DE2, DE3). The setting unit 13 calculates the amount of electricity to be procured externally when the desired amount of electricity with environmental value (EVreq1, EVreq2) cannot be covered by the amount of electricity generated by the consumer's on-site power generation facility 33 and off-site power generation facility 41. The setting unit 13 sets the values ​​of various parameters related to the amount of electricity to be procured externally so as to reduce the procurement cost. Specifically, the setting unit 13 determines the type of electricity to be procured externally for each demand, the amount of electricity to be procured externally for each type of electricity, and the external procured environmental value. The setting unit 13 can procur electricity from the electricity retailer 51 and the environmental value from the renewable energy certificate trading market 61 and the electricity retailer 51 based on the determined type of electricity, the amount of electricity to be procured externally for each type of electricity, and the external procured environmental value. Details of the processing by the setting unit 13 are described in FIG. 6 .

[0072] Next, in step S4, the calculation unit 14 acquires the power consumption actually used by the facility devices 20 measured by the meters 21 provided for each of the tenants a to c. The calculation unit 14 calculates the actual power consumption (Pfin1, Pfin2) for each demand (demands DE1, DE2 in this example) from the power consumption for each of the tenants a to c. The calculation unit 14 also calculates the amount of power (EVfin1, EVfin2) for which the environmental value corresponding to the power consumption has been certified from the power consumption for each demand.

[0073] Furthermore, in step S4, the calculation unit 14 calculates the supply-demand gap between the actual power consumption (Pfin) for each demand (demands DE1 and DE2 in this example) and the amount of power procured. The calculation unit 14 calculates the shortage environmental value (kWh) or surplus environmental value (kWh) for each demand, and stores it in the storage unit 17 as supply-demand gap information 73.

[0074] Next, in step S5, the distribution unit 15 determines the amount of environmental value-added electricity to be finally distributed to each tenant. The distribution unit 15 can procure the shortage environmental value from demand with surplus environmental value. For the amount that cannot be procured from demand with surplus environmental value, the distribution unit 15 can present procurement conditions (e.g., power plant classification, power plant location) to the retail electricity supplier 51 or the renewable energy certificate trading market 61 and procure additional electricity. Details of the processing by the distribution unit 15 will be explained in FIG. 7.

[0075] <Settings on the amount of electricity, etc. for each type of electricity procured> Hereinafter, a process for determining various parameters so as to minimize the amount of externally procured power according to the desired amount of power will be described with reference to Fig. 6. Fig. 6 shows a process flow 600 for setting the type of power to be procured, the amount of power to be procured, etc. so as to minimize the amount of externally procured power executed in the information processing device 1 according to an embodiment of the present disclosure. The process flow 600 in Fig. 6 shows details of the process of step S3 in Fig. 3.

[0076] First, in step S31, the setting unit 13 obtains the predicted value of the power generation amount (RPon_fc) of the on-site power generation facility 33 and the predicted value of the power generation amount (RPof_fc) of the off-site power generation facility 41 from the weather forecast and the past actual power generation amount. In solar power generation and wind power generation, the power generation amount changes depending on the time of day and weather, so the power generation amount can be predicted from the weather forecast and the past actual power generation amount.

[0077] Next, in step S32, the setting unit 13 appropriately allocates the amount of power generation predicted in step S31 to each demand (DE1, DE2 in this example) that desires environmental value-added power.

[0078] For example, when the setting unit 13 allocates the predicted power generation amounts equally to demands DE1 and DE2, the predicted values ​​of the power generation amounts by the off-site power generation facility 41 allocated to demands DE1 and DE2 are each RPof_fc / F. F is the number of demands requesting environmental value-attached electricity, and is 2 in this example. Similarly, the predicted values ​​of the power generation amounts by the on-site power generation facility 33 allocated to demands DE1 and DE2 are each RPon_fc / F. For ease of explanation, the predicted value of the power generation amount by the off-site power generation facility 41 allocated to demand DE1 is set to A1(RPof_fc / F), and the predicted value of the power generation amount by the on-site power generation facility 33 is set to B1(RPon_fc / F). Similarly, for demand DE2, the predicted value of the power generation amount by the off-site power generation facility 41 is set to A2, and the predicted value of the power generation amount by the on-site power generation facility 33 is set to B2.

[0079] Next, in step S33, the setting unit 13 determines whether the sum (A1+B1, A2+B2) of the predicted off-site power generation amount allocated to each demand DE1, DE2 obtained in step S32 and the predicted on-site power generation amount is insufficient for the desired power amount (Preq1, Preq2) of each demand.

[0080] In step S33, if the desired amount of power (Preq1, Preq2) for each demand is greater than the total predicted value (A1+B1, A2+B2) of the off-site and on-site power generation amounts allocated to each demand (DE1, DE2), that is, if the predicted power generation amount is insufficient for the desired amount of power (Preq1, Preq2) for each demand ("YES" in step S33), the process proceeds to step S34. On the other hand, if there is no shortage ("NO" in step S33), the process ends.

[0081] In step S34, the setting unit 13 calculates the amount of power (Ep1, Ep2) that needs to be procured externally by subtracting the total predicted value (A1+B1, A2+B2) of the off-site and on-site power generation allocated to each demand from the desired amount of power (Preq1, Preq2) for each demand.

[0082] Next, in step S35, the setting unit 13 calculates the type of electricity (non-fossil fuel-based, fossil fuel-based), amount of electricity, and environmental value procurement amount to be procured from the retail electricity supplier 51 so as to minimize the procurement cost of the externally procured amount of electricity (Ep1, Ep2).

[0083] Let the amount of non-fossil fuel-derived electricity be C, the purchase price of non-fossil fuel-derived electricity at the time of calculation be X (yen / kWh), the amount of fossil fuel-derived electricity be D, the purchase price of fossil fuel-derived electricity at the time of calculation be Y (yen / kWh), the purchase price at the time of calculating the environmental value be Z (yen / kWh), and the environmental value procurement amount be EVpc. For example, the external procurement amount (Ep1) of demand DE1 is calculated using the following formula (1): C1×X+D1×Y+EVpc1×Z (1) The variables C1, D1, and EVpc1 are determined so that the value of is minimized. Similarly, the externally procured energy amount (Ep2) of demand DE2 is calculated using the following equation (2). C2×X+D2×Y+EVpc2×Z (2) The variables C2, D2, and EVpc2 are determined so that the value of is minimized. This allows the amount of non-fossil fuel-derived electricity C to be procured externally, the amount of fossil fuel-derived electricity D, and the amount of environmental value EVpc to be calculated.

[0084] Next, in step S36, the setting unit 13 procures the electricity desired by each demand (electricity desired by demands DE1, DE2, DE3) and the environmental value (environmental value desired by demands DE1, DE2) according to the type of electricity that minimizes the determined external procurement cost, the amount of electricity, and the amount of environmental value. In addition, the setting unit 13 can reflect the amount C of non-fossil-derived electricity calculated for each demand DE1, DE2 in the contract with the electricity retailer 51.

[0085] As described above, the type of electricity, amount of electricity, and amount of environmental value that will minimize the procurement cost are determined through the processes of steps S31 to S36. The determined information regarding electricity procurement is transmitted to consumer G1 via NW2.

[0086] In this disclosure, it is assumed that while environmental value may be insufficient, there is always a supply capacity of 100% or more relative to demand for electricity, and that no shortage occurs. Therefore, for any shortage of electricity (Pfin-Preq>0), at least one of fossil fuel-derived electricity and non-fossil fuel-derived electricity is automatically supplied from the electricity retailer 51 according to the allocation determined in step S35 when the tenant consumes electricity, so as to balance supply and demand. The setting unit 13 can determine the allocation of the additional fossil fuel-derived electricity and non-fossil fuel-derived electricity to be supplied to the tenant.

[0087] The upper part of Figure 8 illustrates the relationship between the desired energy amount (Preq1, Preq2) of each demand for which an environmental value is desired, the predicted total value (A1+B1, A2+B2) of off-site and on-site power generation allocated to each demand, and the externally procured energy amount (Ep1, Ep2) according to one embodiment of the present disclosure. For demand DE1, the value obtained by subtracting (A1+B1) from Preq1 is the externally procured energy amount Ep1. Similarly, for demand DE2, the value obtained by subtracting (A2+B2) from Preq2 is the externally procured energy amount Ep2.

[0088] The lower part of FIG. 8 also illustrates the relationship between the non-fossil fuel-derived power amount C (C1, C2), the fossil fuel-derived power amount D (D1, D2), and the externally procured power amount (Ep1, Ep2) for each desired power amount (Preq1, Preq2) of each demand, and the relationship between the environmental value procurement amount (EVpc1, EVpc2) for each desired environmental value (EVreq1, EVreq2) of each demand, according to one embodiment of the present disclosure. The amounts of power (A, B) generated by the on-site power generation facility 33 and the off-site power generation facility 41, and the amount of non-fossil fuel-derived power (C) are each equal to an environmental value, so the desired environmental value (EVreq1, EVreq2) for each demand is calculated by adding these amounts to the environmental value procurement amount (EVpc1, EVpc2) for each demand. In other words, EVreq1=A1+B1+C1+EVpc1 EVreq2=A2+B2+C2+EVpc2 This becomes:

[0089] <Distribution of environmental value with a supply-demand gap> Hereinafter, details of the distribution process of environmental value-added electricity energy when there is a supply-demand gap at consumer G1 will be described with reference to Fig. 7. Fig. 7 shows a process flow 700 for distributing environmental value when there is a supply-demand gap, which is performed by an information processing device 1 according to an embodiment of the present disclosure. The process flow 700 in Fig. 7 shows details of the processes of steps S4 and S5 in Fig. 3. Step S4 in Fig. 3 corresponds to step S51 in Fig. 7, and step S5 in Fig. 3 corresponds to steps S52 to S55 in Fig. 7.

[0090] First, in step S51 (corresponding to step S4 in FIG. 3), the calculation unit 14 calculates the supply-demand gap between the environmental value corresponding to the power consumption (Pfin1, Pfin2) for each demand (demands DE1, DE2 in this example) and the environmental value corresponding to the amount of power procured for each demand. Specifically, the calculation unit 14 calculates the supply-demand gap of the amount of power with environmental value from the difference (EVfin-EVreq) between the environmental value (EVfin) corresponding to the actual power consumption (Pfin) for each demand and the environmental value (EVreq) corresponding to the amount of power procured (≈Preq) based on the desired amount of power (Preq) calculated for each demand. When the supply-demand gap is positive, that is, when the environmental value corresponding to the amount of power consumption is greater than the environmental value corresponding to the amount of power procured based on the assumed desired amount of power, the calculation unit 14 calculates the shortage environmental value (EVfin2-EVreq2 in the example in FIG. 9). When the supply-demand gap is negative, that is, when the environmental value corresponding to the amount of electricity procured based on the assumed desired amount of electricity is greater than the environmental value corresponding to the actual amount of electricity consumed, the calculation unit 14 calculates the remaining surplus environmental value (EVreq1-EVfin1 in the example of Figure 9).

[0091] FIG. 9 shows the relationship between the amount of power actually consumed (Pfin1, Pfin2) for each demand DE1, DE2 and the desired amount of power (Preq1, Preq2) according to an embodiment of the present disclosure. Note that although the amount of power procured is neither too much nor too little relative to the desired amount of power, the desired amount of power (Preq) is not necessarily equal to the amount of power procured (≒Preq) based on the externally procured power calculated in step S3 ( FIG. 3 ). For example, if the amount of power actually consumed within a certain period is less than the desired amount of power, i.e., more electricity is not used, and the surplus power cannot be allocated to other demands or charged to a storage battery, the amount of power procured will be less than the desired amount of power. On the other hand, if the amount of power actually consumed within a certain period is greater than the desired amount of power, resulting in a shortage of power, the amount of power procured will be greater than the desired amount of power. For ease of explanation, the following description will be given assuming that the desired amount of power is equal to the amount of power procured.

[0092] 9, for demand DE1, the environmental value of the amount of procured power corresponding to the desired amount of power (Preq1) is greater than the environmental value of the consumed power (Pfin1), and EVfin1 - EVreq1 is negative, so supply is greater than demand, and EVreq1 - EVfin1 is the amount of power with environmental value that can be distributed. On the other hand, for demand DE2, the environmental value corresponding to the consumed power (Pfin2) is greater than the environmental value of the amount of procured power corresponding to the desired amount of power (Preq2), and EVfin2 - EVreq2 is positive, so supply is insufficient, and EVfin2 - EVreq2 is the insufficient amount of power with environmental value.

[0093] Returning to FIG. 7, in step S52 (corresponding to step S5 in FIG. 3), the distribution unit 15 determines whether the amount of environmental value-added power is insufficient based on the power consumption (Pfin) actually consumed by the consumer G1 and the amount of power actually procured (Preq here). The power consumption actually consumed by the consumer G1 is the sum of the amount of power actually consumed by each tenant (Pfin). The total amount of power actually procured by the consumer G1 is the sum of the amount of power actually generated by the on-site power generation facility 33 (RPon), the amount of power actually generated by the off-site power generation facility 41 (RPof), the amount of procured non-fossil fuel-derived power (RPpc), and the amount of procured fossil fuel-derived power (Ppc).

[0094] Specifically, in step S52, the distribution unit 15 calculates the difference between the environmental value (EVfin) corresponding to the total amount of power actually consumed by each tenant in the consumer G1 (Pfin) and the environmental value (EVreq) corresponding to the total amount of power actually procured (Preq in this case). The environmental value corresponding to the total amount of power actually procured is the sum of the environmental value (EVrpof) corresponding to RPof, the environmental value (EVrpon) corresponding to RPon, the environmental value (EVrppc) corresponding to the actual non-fossil fuel-derived power procurement value (RPpc), and the environmental value (EVpc) procured from the renewable energy certificate trading market 61.

[0095] 10 shows the relationship between the total amount of power actually consumed by each tenant in consumer G1 (Pfin) and its corresponding environmental value (EVfin), and the total amount of power actually procured (here, Preq) and its corresponding environmental value (EVreq) according to one embodiment of the present disclosure. As shown in FIG. 10, the total amount of power actually consumed by each tenant (Pfin) and its corresponding environmental value (EVfin) are greater than the total amount of power actually procured (Preq) and its corresponding environmental value (EVreq), respectively. In other words, the environmental value corresponding to the amount of power actually consumed by consumer G1 is greater than the environmental value corresponding to the amount of power actually procured, and consumer G1 has a shortage of environmental value.

[0096] Returning to FIG. 7, if it is determined in step S52 that the consumer G1 has a shortage of environmental value ("YES" in step S52), the process proceeds to step S53 to procure the shortage of environmental value.

[0097] In step S53, the distribution unit 15 determines whether there is a demand (DE1) where the amount of procured power corresponding to the desired amount of power (Preq1) is greater than the amount of power actually consumed (Pfin1), that is, whether there is a demand (DE1) with surplus environmental value. If there is surplus environmental value (YES in step S53), the process proceeds to step S54.

[0098] In step S54, the distribution unit 15 allocates the surplus environmental value in a certain demand to the shortage environmental value of the consumer. For example, in this example, there is a shortage of power in demand DE2 and there is a surplus of power in demand DE1, so it is possible to allocate the environmental value corresponding to the surplus power in demand DE1 to the shortage environmental value of demand DE2. After the allocation, the process returns to step S52. If it is determined in step S52 that there is no shortage environmental value in the consumer ("NO" in step S52), the process ends.

[0099] In step S53, if the distribution unit 15 determines that there is no surplus environmental value in other demands ("NO" in step S53), the processing proceeds to step S55. In step S55, the distribution unit 15 additionally procures the shortage environmental value from the retail electricity supplier 51 or the renewable energy certificate trading market 61 because the shortage environmental value cannot be procured within the consumer G1.

[0100] As described above, the distribution unit 15 can distribute the environmental value for each demand according to the processes from step S51 to step S55. Furthermore, the distribution unit 15 can allocate the environmental value for each tenant according to desired conditions.

[0101] FIG. 11 shows the relationship between the amount of power consumed (Pfin) for each demand (DE1, DE2) and the amount of power ultimately distributed, and the relationship between the environmental value (EVfin) corresponding to the amount of power consumed for each demand and the amount of power with environmental value ultimately distributed, according to one embodiment of the present disclosure.

[0102] The amount of electricity actually consumed by demand DE1 (Pfin1) corresponds to the sum of the actual power generation amount of the off-site power generation facility 41 (RPof1), the actual power generation amount of the on-site power generation facility 33 (Ppon1), the actual non-fossil fuel-based power procurement amount (RPpc1), and the actual fossil fuel-based power procurement amount (Ppc1).

[0103] The amount of electricity actually consumed by demand DE2 (Pfin2) corresponds to the sum of the actual power generation amount of the off-site power generation facility 41 (RPof2), the actual power generation amount of the on-site power generation facility 33 (Ppon2), and the actual non-fossil fuel-based power procurement amount (RPpc2).

[0104] The actual power generation amount (RPof) of the off-site power generation facility 41, the actual power generation amount (Ppon) of the on-site power generation facility, the actual non-fossil fuel-based power procurement amount (RPpc), and the actual fossil fuel-based power procurement amount (Ppc) are allocated to each demand DE in the same manner as described in step S35 so as to minimize the procurement cost.

[0105] The environmental value (EVfin1) corresponding to the amount of electricity (Pfin1) actually consumed by demand DE1 corresponds to the sum of the environmental value (EVrpof1) corresponding to the actual power generation amount (RPof1) of the off-site power generation facility 41, the environmental value (EVrpon1) corresponding to the actual power generation amount (RPon1) of the on-site power generation facility 33, and the environmental value (EVpc1') corresponding to the actual non-fossil fuel electricity procurement amount (RPpc1). Here, the environmental value (EVpc1') is calculated according to the details agreed upon in advance between each tenant and consumer G1. For example, the environmental value procured by the consumer can be distributed equally to each tenant or preferentially to certain tenants.

[0106] The environmental value (EVfin2) corresponding to the amount of electricity actually consumed by demand DE2 (Pfin2) corresponds to the sum of the environmental value (EVrpof2) corresponding to the actual power generation amount (RPof2) of the off-site power generation facility 41, the environmental value (EVrpon2) corresponding to the actual power generation amount (Ppon2) of the on-site power generation facility 33, the environmental value (EVrppc) corresponding to the actual value of non-fossil fuel-based electricity procurement (RPpc2), the environmental value (EVpc1'') of the renewable energy certificate trading market 61, the actual value of externally procured non-fossil fuel-based electricity procurement (EVpc2), and the actual value of externally procured non-fossil fuel-based electricity procurement (EVpc3). Because demand DE2 procures electricity with a 100% renewable energy utilization rate, if fossil fuel-based electricity is procured, the environmental value corresponding to this fossil fuel-based electricity must be procured separately. EVpc1'' is calculated as EVpc1 - EVpc1'. EVpc2 is the total amount allocated in Figure 10 to minimize procurement costs. EVpc3 is calculated as (EVfin1 + EVfin2) - (EVreq1 + EVreq2).

[0107] According to the present disclosure, it is possible to determine the environmental value to be procured based on the actual power consumption, thereby reducing the costs involved in switching to renewable energy for consumers and tenants.

[0108] Furthermore, according to the present disclosure, the information processing device 1 can automatically determine the procurement amount, type, and procurement source of environmental value on behalf of the consumer or tenant, according to the desired conditions of each tenant. This eliminates the need for each consumer or tenant to manage the procurement method of environmental value, thereby reducing the management costs for each consumer or tenant for procuring environmental value.

[0109] Furthermore, according to the present disclosure, environmental value can be flexibly exchanged between demands of consumers or tenants, thereby enabling trading of environmental value between different consumers or tenants.

[0110] Although the embodiments of the present invention have been described above, the above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. Furthermore, any combination of the embodiments and modifications is possible within the scope of solving at least part of the above-described problems or achieving at least part of the effects, and any combination or omission of the components described in the claims and specification is possible. [Explanation of symbols]

[0111] G1…Customer a~cd~f...tenant 1...Control device 2. Network 11…Acquisition part 12...Classification section 13...First calculation section 14...Second calculation section 15...Distribution section 16…Notification section 17...Storage section 20…Equipment 21…Measuring instrument 22...Management device 23...Communication equipment 31...Electricity storage facility 32, 34, 42, 52...Measuring instrument 33...On-site power generation facility 41...Off-site power generation facility 51...Retail electricity supplier 61...Renewable Energy Certificate Trading Market 71… Desired condition information 72…Demand information 73...Supply and demand gap information 101...Bus 102...Processor 103…Main storage device 104...Communication interface 105…Auxiliary storage device 107...Display device DE…Demand RPof: Actual off-site power generation value RPon: On-site power generation performance RPof_fc: Off-site power generation forecast value RPon_fc: On-site power generation forecast value RPpc: Actual value of non-fossil fuel-derived electricity procurement Ppc: Actual value of fossil fuel-derived electricity procurement EVrpof: Environmental value corresponding to off-site power generation forecast EVrpon: Environmental value corresponding to on-site power generation forecast EVrppc: Environmental value corresponding to the predicted value of non-fossil fuel-derived electricity procurement EVpc: Environmental value of the renewable energy trading market

Claims

1. A method executed on an information processing device, comprising: Obtain the desired conditions for power procurement and the amount of power required from each tenant, Calculating a desired amount of power for each demand having the same desired conditions and an environmental value based on the desired amount of power; provisionally allocating a predicted power generation amount of renewable energy with proven environmental value to the desired amount of power for each of the demands; When the predicted power generation amount falls short of the desired amount of power for each demand, the difference is procured externally so as to minimize the procurement cost.

2. The method of claim 1, further comprising determining the additional procurement of insufficient environmental value for the customer so as to minimize procurement costs based on the sum of environmental values ​​corresponding to the total amount of electricity actually consumed by the tenant and the environmental value based on the sum of the desired amount of electricity for each demand.

3. The method according to claim 2 , further comprising determining allocations of the environmental value based on the desired amount of power and the shortage environmental value to the consumer.

4. The method according to claim 3 , wherein the environmental value and the deficit environmental value to be allocated to the tenant are determined based on the desired conditions of the tenant, the environmental value determined to be allocated to the consumer, and the deficit environmental value.

5. The method according to claim 4 , wherein the additional procurement of the scarce environmental value is procured externally or procured among demands.

6. The supply of the scarce environmental value between the demands is 6. A method according to claim 5, wherein when there is a shortage of provisionally allocated environmental value at the consumer relative to the environmental value corresponding to the amount of electricity actually consumed, and when there is excess demand for environmental value corresponding to the amount of power actually consumed relative to the environmental value based on the desired amount of electricity, the environmental value of the excess demand is procured by allocating it to the shortage environmental value.

7. The external procurement of the lacking environmental value is A method according to claim 5, wherein when there is a shortage of provisionally allocated environmental value at the consumer relative to the environmental value corresponding to the amount of electricity actually consumed, and when there is no excess demand for the environmental value corresponding to the amount of electricity actually consumed relative to the environmental value based on the desired amount of electricity, the shortage environmental value is procured from outside.

8. The additional procurement of the difference is calculating an amount of externally procured power based on the desired amount of power for each demand and a predicted value of the amount of power generated by renewable energy generated at the consumer; The method according to claim 1 , wherein the method is performed by setting various parameters related to the externally procured power for each of the demands so as to minimize the procurement cost of the amount of externally procured power.

9. The method according to claim 7 , wherein the procurement of the shortage environmental value from outside includes presenting procurement conditions to a renewable energy certificate trading market and procuring the shortage environmental value from the renewable energy certificate trading market.

10. The method according to claim 8 , wherein the various parameters related to the externally procured power include a type of power to be procured externally and an amount of externally procured power for each type of power to be procured externally.

11. The method according to claim 1 , wherein the desired conditions include at least one of the percentage of renewable energy used by the tenant, whether additionality is considered, the power generation area, and the purpose of using the renewable energy.

12. An information processing device including a storage unit and a processor, wherein the processor executes instructions stored in the storage unit to: Obtain the desired conditions for power procurement and the amount of power required from each tenant, Calculating a desired amount of power for each demand having the same desired conditions and an environmental value based on the desired amount of power; provisionally allocating a predicted power generation amount of renewable energy with proven environmental value to the desired amount of power for each of the demands; When the predicted power generation amount falls short of the desired amount of power for each demand, the information processing device procures the difference from outside so as to minimize the procurement cost.

13. The information processing device of claim 12, which determines the additional procurement of insufficient environmental value in the consumer so as to minimize procurement costs based on the sum of environmental values ​​corresponding to the total amount of power actually consumed by the tenant and the environmental value based on the sum of the desired amount of power for each demand.

14. The information processing device according to claim 13 , further comprising: determining an allocation of the environmental value based on the desired amount of power and the shortage environmental value to the consumer.

15. A system including a storage unit and an information processing device including a processor, wherein the processor executes instructions stored in the storage unit to: Obtain the desired conditions for power procurement and the amount of power required from each tenant, Calculating a desired amount of power for each demand having the same desired conditions and an environmental value based on the desired amount of power; provisionally allocating a predicted power generation amount of renewable energy with proven environmental value to the desired amount of power for each of the demands; When the predicted power generation amount falls short of the desired amount of power for each demand, the system procures the difference from outside so as to minimize procurement costs.

16. The system described in claim 15 determines the additional procurement of insufficient environmental value for the consumer so as to minimize procurement costs based on the sum of environmental values ​​corresponding to the total amount of electricity actually consumed by the tenant and the environmental value based on the sum of the desired amount of electricity for each demand.

17. The system according to claim 16 , further comprising: determining an allocation of the environmental value based on the desired amount of power and the shortage environmental value to the consumer.

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