JP7645790B2 - ENVIRONMENTAL VALUE MANAGEMENT DEVICE, ENVIRONMENTAL VALUE MANAGEMENT SYSTEM, ENVIRONMENTAL VALUE MANAGEMENT METHOD, AND PROGRAM - Google Patents

Description

This disclosure relates to an environmental value management device, an environmental value management system, an environmental value management method, and a program for managing the environmental value of electricity.

As the global decarbonization progresses, there is a growing need among consumers to procure environmental value-attached electricity. If a consumer owns the power generation facilities that generate renewable energy, they can procure environmental value-attached electricity using the power generation facilities they own. However, it is not always possible to obtain the desired amount of environmental value-attached electricity from the electricity generated by the power generation facilities they own, and there may also be a surplus of renewable energy generated by the power generation facilities they own.

Meanwhile, it is now possible to separate the value of renewable energy generated by solar power generation facilities and other sources into electricity value, which is the value of the electricity itself, and environmental value, and to buy and sell these separately. In this way, by separating the electricity value from the environmental value, a wide range of players can procure the environmental value.

Patent Document 1 discloses a technology in which an electricity supplier server at an electricity supplier that supplies electricity to consumers manages electricity value and environmental value. The electricity supplier server described in Patent Document 1 accepts requests to purchase environmental value from consumers who wish to purchase environmental value, and encourages consumers who sell the electricity value of natural energy to sell the environmental value. In this way, the electricity supplier server described in Patent Document 1 can support the buying and selling of environmental value.

JP 2007-97347 A

In the technology described in Patent Document 1, the electricity supplier server calculates surplus environmental value from the amount of environmental value currently held by the electricity supplier or the expected amount of environmental value to be held in a specified period and the target amount of environmental value to be held, and sells environmental value to the consumer if the calculated surplus environmental value is greater than the desired environmental value amount, which is the amount of environmental value that the consumer wishes to sell. However, if the calculated surplus environmental value is equal to or less than the desired environmental value amount, there is a problem in that the consumer is unable to purchase the environmental value and is unable to secure the desired environmental value. For this reason, technology that makes it easier to realize the wishes of consumers is desired.

This disclosure has been made in consideration of the above, and aims to provide an environmental value management device that can make it easier for consumers' needs to be realized.

In order to solve the above-mentioned problems and achieve the objectives, the environmental value management device disclosed herein comprises a certificate required quantity prediction unit that indicates a predicted value of a consumer's electricity demand and the consumer's request for the environmental value of the electricity to be supplied , and calculates a procurement required quantity, which is the required amount of environmental value to be procured, using the predicted value and corresponding environmental value request information, and a planning unit that creates a procurement plan for environmental value certificates so that certificates of environmental value corresponding to the procurement required quantity for a specified planning period are procured within the planning period.

The environmental value management device disclosed herein has the effect of making it easier for consumers' needs to be realized.

FIG. 1 is a diagram showing a configuration example of an environmental value management system according to an embodiment; FIG. 2 is a diagram showing an example of the configuration of an environmental value management device and a consumer device according to an embodiment; FIG. 2 is a diagram showing an example of customer information according to an embodiment; 1 is a flowchart showing an example of an environmental value management process according to an embodiment. FIG. 1 is a diagram showing an example of an environmental value supply and demand plan displayed by an environmental value management device according to an embodiment. FIG. 13 is a diagram showing an example of a display screen that displays a planned value and an actual value in the embodiment. FIG. 13 is a diagram showing an example of an allocation result displayed on a customer device according to an embodiment; FIG. 1 is a diagram showing an example of a predicted value of the price of environmental value for each supplier according to an embodiment; FIG. 1 is a diagram showing an example of association information according to an embodiment; FIG. 1 is a diagram showing an example of the configuration of a computer system that realizes an environmental value management device according to an embodiment.

The following describes in detail the environmental value management device, environmental value management system, environmental value management method, and program according to the embodiments with reference to the drawings.

Embodiment
1 is a diagram showing an example of the configuration of an environmental value management system according to an embodiment. An environmental value management system 8 according to the present embodiment includes an environmental value management device 1 that manages the environmental value of electricity supplied to consumers, consumer devices 3-1 to 3-3 that can be operated by each consumer, and smart meters (hereinafter abbreviated as SM) 21-1 to 21-3 that are metering devices that measure the amount of electricity consumed by each consumer and are installed for automatic meter reading.

In the example shown in FIG. 1, consumer facility 2-1, which is facility installed at consumer #1, includes power generation facility 22 and load 23-1 connected to distribution line 20 in the power system. Consumer facility 2-2, which is facility installed at consumer #2, includes load 23-2 connected to distribution line 20 in the power system. Consumer facility 2-3, which is facility installed at consumer #3, includes storage facility 24 and load 23-3 connected to distribution line 20 in the power system. Consumers #1 to #3 are consumers who receive power from a retail electricity supplier that manages environmental value management system 8. Loads 23-1 to 23-3 are facilities that consume power. Hereinafter, when loads 23-1 to 23-3 are referred to without distinction, they will be referred to as load 23, and when consumer devices 3-1 to 3-3 are referred to without distinction, they will be referred to as consumer devices 3.

SM21-1 to 21-3 are not facilities owned by consumers #1 to #3, but as described above, are provided for each of consumers #1 to #3 to measure the power supplied. SM21-2 measures the amount of power consumed by load 23-2, and SM21-1 measures the amount of power consumed by load 23-1 minus the amount of power generated by power generation equipment 22. SM21-3 measures the amount of power consumed by load 23-3 and power storage equipment 24 when charging power storage equipment 24, and measures the amount of power consumed by load 23-3 minus the amount of power discharged by power storage equipment 24 when discharging power storage equipment 24. Note that in consumer #1, the amount of power generated by power generation equipment 22 and the amount of power consumed by load 23-1 may be measured separately. SM21-1 to 21-3 are an example of a plurality of metering devices that respectively measure the power demand of a plurality of consumers. Hereinafter, when referring to SM21-1 to 21-3 without distinguishing them individually, they will be referred to as SM21.

Figure 1 illustrates three consumers, consumers #1 to #3, but the number of consumers to which a retail electricity supplier supplies electricity is not limited to the example shown in Figure 1 and may be one or more. In addition, the configuration of the equipment at each consumer is not limited to the example shown in Figure 1.

The measurement value management device 4 collects the measurement results from SM21-1 to 21-3 and transmits the collected measurement results to the environmental value management device 1. Note that in FIG. 1, the measurement results from SM21-1 to 21-3 are transmitted to the environmental value management device 1 via the measurement value management device 4, but the route by which the environmental value management device 1 obtains the measurement results of SM21-1 to 21-3 is not limited to this. Also, in FIG. 1, the environmental value management device 1 obtains the measurement results of SM21-1 to 21-3 as actual values of the power demand and power generation amount at the consumer, but the actual values of the power demand and power generation amount at the consumer obtained by the environmental value management device 1 are not limited to this, and actual values measured by other devices, such as the power generation amount measured by a PCS (Power Conditioning System) in the power generation facility 22, may be used.

The environmental value management device 1 acquires the measurement results of SM21-1 to 21-3 via the measurement value management device 4 as actual values of the power demand and power generation amount of the consumer, and calculates the required amount of environmental value of each consumer based on the acquired actual values and the power menu that each consumer has contracted with the retail electricity supplier. The power menu is information indicating the contents of the contract regarding the power supplied by the retail electricity supplier to each consumer, and includes information indicating the ratio of renewable energy (hereinafter also referred to as "renewable energy") in the power supplied. The power menu is an example of requested ratio information indicating the consumer's request regarding the ratio of renewable energy to the power supplied. The power menu may include information indicating a CO2 (carbon dioxide) emission coefficient (a numerical value indicating how many tons of CO2 are emitted per kWh of electricity). The requested ratio information and the CO2 emission coefficient are examples of environmental value request information indicating the consumer's request regarding environmental value. The environmental value request information includes, for example, at least one of the requested ratio information and the CO2 emission coefficient. The environmental value management device 1 creates a procurement plan for environmental value certificates based on the calculated required amount of environmental value for each consumer, so as to procure certificates corresponding to the required amount of environmental value for each consumer.

The environmental value management device 1 also processes environmental values between an environmental value market system 5 that processes transactions in the environmental value trading market, and an environmental value trader system 6 that is a trading partner of a bilateral contract for environmental value. The environmental value trader system 6 is a system that is managed and operated by a business operator with which the bilateral contract for environmental value is conducted. Note that, here, an example is described in which the environmental value management device 1 processes transactions between the environmental value market system 5 and the environmental value trader system 6, but the transaction may be conducted by a device other than the environmental value management device 1, or may be conducted by a method other than electronic trading. Although one environmental value market system 5 is illustrated in FIG. 1, there may be multiple trading markets for environmental values, and an environmental value market system 5 may be provided for each trading market. Examples of trading markets for environmental values include, but are not limited to, a renewable energy value trading market, an advanced energy law obligation achievement market, and a J-credit trading market.

Figure 2 is a diagram showing an example of the configuration of the environmental value management device 1 and the consumer device 3 of this embodiment. As shown in Figure 2, the environmental value management device 1 of this embodiment includes a transmission/reception unit 10, a memory unit 11, an input reception unit 12, an electricity demand prediction unit 13, a certificate required amount prediction unit 14, a planning unit 15, a monitoring unit 16, a trading unit 17, an allocation unit 18, and a display unit 19.

The transmission/reception unit 10 communicates with other devices such as the metered value management device 4, the environmental value market system 5, the environmental value trader system 6, the power generation management device 7, and the consumer device 3. For example, the transmission/reception unit 10 receives the metered results of the SM 21 of each consumer from the metered value management device 4, and stores the received metered results in the memory unit 11 as actual electricity demand values. The transmission/reception unit 10 also acquires information indicating the market price and bid price of environmental value from the environmental value market system 5 and the environmental value trader system 6, and stores it in the memory unit 11 as environmental value price information. The power generation management device 7 is a device that manages the amount of power generated by renewable energy power generation facilities owned by retail electricity businesses or affiliates of retail electricity businesses. The transmission/reception unit 10 stores the actual value of the amount of power generation received from the power generation management device 7 in the memory unit 11 as a non-fossil power generation actual value.

The memory unit 11 stores consumer information, actual electricity demand values, electricity demand forecast results, environmental value supply and demand forecast results, environmental value supply and demand plans, environmental value acquisition results, environmental value price information, and non-fossil power generation actual values. Consumer information includes information indicating the electricity menu to which each consumer has a contract. The electricity demand forecast results, environmental value supply and demand forecast results, environmental value supply and demand plans, and environmental value acquisition results will be described later.

Figure 3 is a diagram showing an example of consumer information in this embodiment. In the example shown in Figure 3, the consumer information includes an electricity menu for each consumer. Figure 3 is an example, and the consumer information may further include information indicating the contracted power and the power generation facilities owned by the consumer. The electricity menu includes information indicating the renewable energy ratio. The electricity menu may include an electricity menu for which a corresponding reporting system is defined. Examples of reporting systems include, but are not limited to, SBT (Science Based Targets), RE (Renewable Energy) 100, and CDP (Carbon Disclosure Project). In addition, when a reporting system is specified by a consumer, the electricity menu may include information indicating the system, or the consumer information may include information indicating the system specified as an item separate from the electricity menu. The type of applicable certificate is determined depending on the reporting system.

The input reception unit 12 receives input from a user who operates the environmental value management device 1. The power demand prediction unit 13 predicts the power demand of each consumer for the planning period using the actual power demand values stored in the memory unit 11, and stores the prediction result in the memory unit 11 as a power demand prediction result. For consumers who own power generation facilities 22, the actual power demand values are used to separate the actual values into power generation and power demand, and the separated results are used to predict the power generation and power demand, and the predicted power demand minus the predicted power generation may be used as the predicted value of the power demand (power demand from the perspective of the retail electricity supplier). The planning period may be, for example, one year, half a year, quarter, month, hour, etc., but is not limited to these. An example in which the planning period is one year will be described below.

The certificate requirement prediction unit 14 predicts the procurement requirement, which is the required amount of environmental value to be procured, using environmental value requirement information indicating the demand of the consumer regarding environmental value and the predicted value of the consumer's electricity demand. For example, for a consumer whose demand regarding environmental value is indicated by the requirement ratio information, the certificate requirement prediction unit 14 predicts the required amount of environmental value of each consumer using the predicted value of electricity demand and the corresponding requirement ratio information, and for a consumer whose demand regarding environmental value is determined by a CO2 emission coefficient, predicts the required amount of environmental value of each consumer based on the predicted value of electricity demand and the corresponding CO2 emission coefficient. Then, the certificate requirement prediction unit 14 sets the total value of the required amount of environmental value of all consumers as the procurement requirement. In detail, the certificate requirement prediction unit 14 calculates the required amount of environmental value of each consumer in the specified planning period using the electricity demand prediction result stored in the memory unit 11 and the consumer information stored in the memory unit 11, and stores the calculated required amount of environmental value in the memory unit 11 as the environmental value demand prediction result. In addition, if the corresponding systems differ depending on the electricity menu provided, the certificate required amount prediction unit 14 calculates the certificate required amount for each system.

The planning unit 15 creates a procurement plan for environmental value certificates so as to procure, within the planning period, environmental value certificates corresponding to the required amount of environmental value in the planning period. In detail, the planning unit 15 creates an environmental value supply and demand plan, which is a supply and demand plan for environmental value certificates, using the environmental value demand forecast results stored in the memory unit 11, and stores the created environmental value supply and demand plan in the memory unit 11. The supply and demand plan for environmental value certificates includes a procurement plan for environmental value certificates. In addition, when creating the environmental value supply and demand plan, the planning unit 15 may use the environmental value price information stored in the memory unit 11 to predict the price of environmental value for each procurement source such as each market and bilateral transaction in the planning period, and create the environmental value supply and demand plan so as to minimize costs using the predicted prices. In addition, if the electricity retailer that manages the environmental value management device 1 owns renewable energy power generation facilities, or if the electricity retailer manages renewable energy generated by power generation facilities owned by a power generation business operator of the electricity retailer's affiliated company, the environmental value of these renewable energies is also treated as one of the sources of procurement of the required amount of environmental value for each consumer as the self-procurement portion, and an environmental value supply and demand plan is created. In other words, the procurement source of the environmental value certificate may include the certification of electricity generated by a power source that generates electricity from renewable energy managed by the business operator that operates the environmental value management device. For example, the planning unit 15 predicts the amount of certificates procured by the company based on the actual value of non-fossil power generation. Note that if the electricity retailer does not have renewable energy power generation facilities or renewable energy power generation facilities of the affiliated company, the self-procurement portion is not taken into account.

The monitoring unit 16 uses the environmental value supply and demand plan, the environmental value acquisition record indicating the certificates of environmental value already acquired during the planning period, and the actual electricity demand value to compare the planned and actual values for the demand forecast value and the purchase requirement of the certificate in the environmental value supply and demand plan, and if the planned value deviates from the actual value by more than a threshold value, displays an alarm on the display unit 19 and causes the electricity demand forecasting unit 13, the certificate required amount forecasting unit 14, and the planning unit 15 to reprocess. After displaying the alarm, the monitoring unit 16 may cause the electricity demand forecasting unit 13, the certificate required amount forecasting unit 14, and the planning unit 15 to reprocess when a command to re-create the plan is received from the user via the input receiving unit 12.

After the end of the planning period, the allocation unit 18 allocates the certificates of environmental value procured for the planning period to each consumer. In detail, when the planning period ends and trading of the certificates corresponding to the environmental value corresponding to the planning period is completed, the allocation unit 18 allocates the acquired certificates to each consumer using the environmental value acquisition record stored in the memory unit 11, and stores the allocation result as part of the environmental value acquisition record in the memory unit 11. The allocation result to each consumer may be transmitted to the corresponding consumer device 3 via the transmission/reception unit 10, or may be sent to the consumer on paper.

The trading unit 17 performs trading processing between the environmental value market system 5 and the environmental value trader system 6 via the transmission/reception unit 10 in accordance with the environmental value supply and demand plan, and stores information about the certificates procured through the trading in the memory unit 11 as environmental value acquisition results. As described above, the trading processing may be performed by a device other than the environmental value management device 1, or may be performed by a method other than electronic trading.

The display unit 19 displays various information stored in the memory unit 11 based on instructions received from the user by the input reception unit 12.

The consumer device 3 includes a transmission/reception unit 31, an input reception unit 32, and a display unit 33. The transmission/reception unit 31 communicates with the environmental value management device 1. The input reception unit 32 receives input from the consumer. The display unit 33 performs various displays. For example, the input reception unit 32 receives input of information specifying an electricity menu to be contracted with a retail electricity supplier, and outputs the received information to the transmission/reception unit 31, which outputs the information to the environmental value management device 1. In addition, for example, when the transmission/reception unit 31 receives the allocation result of the environmental value certificate from the environmental value management device 1, it outputs the result to the display unit 33, and the display unit 33 displays the allocation result.

Next, the operation of this embodiment will be described. FIG. 4 is a flowchart showing an example of an environmental value management processing procedure of this embodiment. As shown in FIG. 4, the environmental value management device 1 predicts demand for environmental values (step S1).

In detail, the power demand forecasting unit 13 forecasts the power demand of each consumer during the planning period using the actual power demand values stored in the memory unit 11, and stores the forecast results in the memory unit 11 as a power demand forecast result. For example, the measurement results of the SM21 are periodically transmitted from the measurement value management device 4, received by the transmission/reception unit 10, and stored in the memory unit 11 as a power demand actual value, so that the memory unit 11 accumulates past power demand actual values. A method for forecasting power demand based on the actual power demand values can be, for example, a method using an average value for a certain period, such as the average value for each consumer in the past month, as a forecast value, but any method can be used without being limited to this. Here, an example is described in which the planning period is one year and the forecast value of the power demand for each month is calculated. The certificate required amount forecasting unit 14 forecasts the required amount of environmental value for each consumer during the planning period using the actual power demand values stored in the memory unit 11 and the consumer information stored in the memory unit 11, and stores the predicted required amount in the memory unit 11 as a result of environmental value demand forecast. As described above, the consumer information includes the electricity menu for each consumer, so the certificate required amount prediction unit 14 uses the electricity menu to calculate what percentage of each consumer's electricity demand should be renewable energy, and sets the calculated amount corresponding to the renewable energy as the predicted value for the required amount of environmental value. The certificate required amount prediction unit 14 stores the predicted value for the required amount of environmental value for each consumer and the procurement required amount, which is the total of the predicted values for the required amount of environmental value for all consumers, in the memory unit 11 as the environmental value demand prediction result for each fixed period of time.

Note that, although an example will be described here in which the environmental value management device 1 predicts the electricity demand, another device (not shown) may predict the electricity demand, and the environmental value management device 1 may obtain the predicted electricity demand value from that device.

Next, the environmental value management device 1 creates a supply and demand plan for the certificates (step S2). In detail, the planning unit 15 uses the environmental value demand forecast results stored in the memory unit 11 to determine a planned value for the procurement amount of the certificates for each certain period so that the required amount of environmental value can be procured, and stores the environmental value supply and demand plan including the determined planned value in the memory unit 11. There are several types of certificates related to environmental value, such as green power certificates, green heat certificates, renewable energy power-derived J-credits, renewable energy heat-derived J-credits, and non-fossil certificates. Non-fossil certificates are further classified according to whether or not they have attributes tracked by the government, and are also separated into FIT (Feed-in Tariff)/non-FIT certificates. In addition, as described in the "Guidance on Responding to International Climate Change Initiatives" (established in March 2019 and last revised in March 2021) formulated by the Ministry of Economy, Trade and Industry and the Ministry of the Environment, the types of certificates that can be used are determined for each reporting system related to renewable energy. For this reason, when there is an electricity menu that specifies a reporting system, or when a reporting system is specified by a consumer, it is necessary to procure certificates corresponding to these reporting systems. For this reason, in this embodiment, the planning unit 15 calculates the required amount of certificates for each reporting system based on the predicted value of the required amount of environmental value and the consumer information, and determines a planned value of the procurement amount so that the required amount of the type of certificate corresponding to each reporting system can be procured. In other words, the planning unit 15 determines a planned value of the procurement amount of environmental value certificates for each reporting system. Note that in the prediction in step S1, the required procurement amount of environmental value may be calculated for each reporting system.

The planning unit 15 may further determine the source of procurement of the certificates, i.e., the procurement method. That is, the planning unit 15 may determine the planned value of the procurement amount of environmental value certificates in the planning period for each source of procurement of environmental value certificates. The procurement sources include various trading markets and bilateral contracts for environmental value certificates. Also, as described above, in the case where a retail electricity supplier or an affiliated company has renewable energy power generation facilities, the procurement of certificates corresponding to the electricity generated by these power generation facilities may be included in the procurement sources as in-house procurement. Also, in the case where there is a surplus of certificates procured by the company, the planning unit 15 creates a supply and demand plan for the certificates so that the surplus is sold on the market or through a bilateral contract. The planning unit 15 does not have to determine the source of procurement of the certificates.

Each certificate includes the amount to be certified (electricity amount or CO2 emission reduction amount) and information indicating the power generation period corresponding to the certificate. If the planning period is longer than the power generation period, the creation period may be divided and managed so that a certificate for a power generation period corresponding to the period in which the required amount of the certificate occurs can be procured. For example, if the creation period is one year and the power generation period in the certificate is set in quarterly units, the planning unit 15 may create a plan so that the required amount of the certificate for each quarter is procured as the total amount in the certificate with the power generation period of that quarter. Note that there may be a time lag, such as six months, between the generation of renewable energy and the certification and the issuance of the certificate, and it may be difficult to match the power generation period in the certificate with the period in which the electricity was used. In such a case, the planning unit 15 may create an environmental value supply and demand plan so that the required amount of the certificate can be procured throughout the planning period without considering the power generation period.

Next, the environmental value management device 1 displays the supply and demand plan of the certificate (step S3). In detail, the display unit 19 reads out and displays the environmental value supply and demand plan stored in the memory unit 11. FIG. 5 is a diagram showing an example of an environmental value supply and demand plan displayed by the environmental value management device 1 of this embodiment. In the example shown in FIG. 5, the total required amount (total of predicted required amount) of certificates for the planning period for each system (reporting system) corresponding to the electricity menu and the certificate type (type of certificate) corresponding to each reporting system are shown. Each certificate contains information indicating the amount of electricity or the amount of CO2 emission reduction. In the case of a certificate showing the amount of CO2 emission reduction, it is converted into the amount of electricity based on the above-mentioned "Guidance on Responding to the International Climate Change Initiative". In addition, for a system reporting the amount of CO2 emission reduction, the predicted amount of required amount is similarly converted into the amount of CO2 emission reduction. In this embodiment, the total amount of certificates required for multiple consumers is predicted, so even if there is an error in the predicted value of the power demand of an individual consumer, the amount of certificates required calculated from the predicted value of the power demand is calculated from the total power demand of multiple consumers, so the error is reduced by the smoothing effect. In the example shown in FIG. 5, among Schemes A, B, and C, Scheme A is the strictest, i.e., the number of applicable certificate types is the smallest, Scheme B has the next smallest number of applicable certificate types after Scheme A, and Scheme C has the largest number of applicable certificate types. The amount of certificates required for providing an electric power menu compliant with Scheme A is the total value of the amount of certificates required for consumers who have selected an electric power menu compliant with Scheme A. Similarly, the amount of certificates required for providing an electric power menu compliant with Scheme B is the total value of the amount of certificates required for consumers who have selected an electric power menu compliant with Scheme B, and the amount of certificates required for providing an electric power menu compliant with Scheme C is the total value of the amount of certificates required for consumers who have selected an electric power menu compliant with Scheme C.

In addition, in FIG. 5, the total required amount of certificates for the planning period is shown, but the required amount of certificates for each fixed period may also be displayed. That is, for example, when the planning period is one year, the required amount for each fixed period may be displayed. Furthermore, the source of procurement of the certificates may also be displayed. FIG. 5 is an example, and the display method and display contents are not limited to the example shown in FIG. 5.

Returning to the explanation of FIG. 4, the environmental value management device 1 determines whether the conditions for the end processing of the planning period are met (step S4). In detail, the allocation unit 18 determines whether the conditions for the end processing of the planning period are met. The conditions for the end processing of the planning period are, for example, that the planning period has ended, the actual values of the electricity demand for the planning period have been completed, and the trading of certificates for the planning period has been completed.

If the conditions for the end processing of the planning period are not met (step S4 No), the environmental value management device 1 acquires the actual values (step S5). In detail, the monitoring unit 16 acquires the power demand actual value and the environmental value acquisition actual value from the memory unit 11. As described above, the transmission/reception unit 10 periodically receives the measurement results of SM21 from the measurement value management device 4 and stores them in the memory unit 11 as the power demand actual value. Each time an environmental value is traded, the transmission/reception unit 10 receives the transaction results and updates the environmental value acquisition actual value stored in the memory unit 11. The actual value of the in-house procurement certificate is also recorded in the memory unit 11 as the environmental value acquisition actual value.

Next, the environmental value management device 1 judges whether the discrepancy between the planned value and the actual value, that is, |planned value-actual value|, exceeds a threshold value (step S6). In detail, the monitoring unit 16 judges whether |planned value-actual value| exceeds a threshold value for each element. The elements are, for example, the required amount of certificates, that is, the required amount of environmental value certificates calculated from the power demand, the amount of certificates procured from the market, the amount of certificates procured for bilateral contracts, and the amount of certificates procured for in-house procurement. It is assumed here that the procurement source is also determined at the time of planning, and that the planned values of the procurement amounts for the market, bilateral contracts, and in-house procurement are set. If any one of these elements |planned value-actual value| exceeds a threshold value, the monitoring unit 16 judges Yes in step S6. It is to be noted that each certificate includes the corresponding amount (power amount or CO2 emission reduction amount) and information indicating the power generation period corresponding to the certificate. For the required amount for the certificate, the monitoring unit 16 calculates the actual value of the demand for environmental value, i.e., the required amount, from the start of the planning period to the present time using the actual power demand value and consumer information stored in the memory unit 11, and calculates |Planned value - Actual value| using the calculated actual value and the predicted value of the required amount, which is the planned value from the start of the planning to the present time in the environmental value supply and demand plan.

If |Planned value-Actual value| exceeds the threshold value (step S6 Yes), the environmental value management device 1 displays an alarm (step S7), and the process from step S1 is performed again. In detail, in step S7, the monitoring unit 16 displays on the display unit 19 that a discrepancy has occurred between the planned value and the actual value, and that replanning is necessary, and displays the planned value and the actual value. Then, the process from step S1 is performed again by instructing the power demand forecasting unit 13, the certificate required amount forecasting unit 14, and the planning unit 15 to perform reprocessing reflecting the actual value. Note that after displaying the alarm, the monitoring unit 16 may instruct the power demand forecasting unit 13, the certificate required amount forecasting unit 14, and the planning unit 15 to perform reprocessing after receiving an instruction to re-create the plan from the user via the input receiving unit 12.

In this way, the planning unit 15 determines the planned value of the procurement amount of the environmental value certificate for each procurement source for each period into which the planning period is divided, and the monitoring unit 16 instructs the certificate required amount prediction unit 14 and the planning unit 15 to reprocess the data by reflecting the actual value of the procurement amount for each procurement source when there is a procurement source for which the difference between the total planned value from the start of the planning period to the most recent period and the actual value of the procurement amount of the corresponding environmental value certificate within the planning period is equal to or greater than a threshold value. The monitoring unit 16 also calculates the actual value of the required amount of the environmental value from the start of the planning period to the most recent period using the actual value of the power demand of the consumer for the total period from the start of the planning period to the most recent period and the consumer information. Then, when the difference between the predicted value of the total required amount from the start of the planning period to the most recent period and the calculated actual value of the required amount is equal to or greater than a threshold value, the monitoring unit 16 instructs the certificate required amount prediction unit 14 and the planning unit 15 to reprocess the data by reflecting the actual value of the required amount, thereby recreating the procurement plan for the environmental value certificate.

Figure 6 is a diagram showing an example of a display screen that displays planned values and actual values in this embodiment. In the example shown in Figure 6, the planned value and actual value of the total required amount of certificates for the entire planning period of one year are shown on the left, and the planned value and actual value of the required amount of certificates for each month in the planning period are shown on the right. In Figure 6, the unhatched rectangles indicate planned values, and the hatched rectangles indicate actual values. Note that in the example shown in Figure 6, it is assumed that there are also certificates procured by the company, and in 20XX/07, the certificates procured by the company exceed the required amount, resulting in a surplus. In Figure 6, negative values indicate the required amount, and positive values indicate the surplus amount. Regarding certificates procured by the company, sales are made when a surplus occurs throughout the year (even taking into account forecast errors), and sales are not made if, for example, a surplus occurs only in a certain month, but no surplus occurs throughout the year. That is, if the predicted total amount of environmental value corresponding to the electricity generated by the company's renewable energy power source during the planning period is a certain amount more than the procurement required amount during the planning period, the planning unit 15 creates a plan to sell a certificate of environmental value corresponding to the electricity generated by the company's renewable energy power source. Note that FIG. 6 is an example, and the display method and display content are not limited to the example shown in FIG. 6.

Returning to the explanation of FIG. 4, if |Planned value - Actual value| is equal to or less than the threshold value (No in step S6), the environmental value management device 1 repeats the process from step S4. If the conditions for the end process of the planning period are met (Yes in step S4), the environmental value management device 1 performs allocation processing (step S8), implements reporting processing (step S9), and ends the process. In detail, in step S8, the allocation unit 18 allocates the procured certificates according to the required amount of each consumer, and adds and stores the allocation result in the environmental value acquisition record in the memory unit 11. In step S9, the transmission/reception unit 10 transmits the allocation result for each consumer in the environmental value acquisition record stored in the memory unit 11 to the consumer device 3 of the corresponding consumer.

In this embodiment, as described above, the required amount of environmental value is calculated using the power menu contracted by the consumer and the predicted value of the consumer's power demand, and a supply and demand plan for environmental value is created so that the calculated required amount can be procured, thereby achieving the consumer's desire for environmental value. Furthermore, after the plan is created, if the deviation from the actual value becomes equal to or greater than a threshold value, the monitoring unit 16 recreates the supply and demand plan for environmental value by reflecting the actual value. Therefore, if the predicted value of power demand deviates from the actual value or the actual value of the procurement of the certificate deviates from the planned value, the plan can be realized over the entire planning period by reviewing the subsequent plan. Furthermore, during the planning period, the consumer may change the power menu contracted by the consumer, or the number of consumers contracting with the retail electricity supplier may increase or decrease. Due to these influences, even if the difference between the actual value and the planned value up to that point is small, the required amount may change thereafter. For this reason, the supply and demand plan for environmental value may be recreated even if the number of power menus, the number of consumers, etc., increases or decreases by more than a specified number. In addition, in this embodiment, a supply and demand plan for environmental value is created so that the total amount of environmental value required by multiple consumers can be procured, so even if there is an error in the electricity demand forecast, the smoothing effect can reduce the impact of the error.

When the above-mentioned process is completed, the allocation result is displayed by the display unit 33 of the consumer device 3. FIG. 7 is a diagram showing an example of the allocation result displayed on the consumer device 3 of this embodiment. In the example shown in FIG. 7, the planning period is one year, and the consumer's certificate requirement (required amount of environmental value certificate) and the allocation result are displayed for each quarter. As shown in FIG. 7, the allocation result includes the certificate type (type of certificate), the certificate serial number which is the identification number of the certificate, and the certificate allocation amount which is the amount certified in the certificate (electricity amount or CO2 emission reduction amount). FIG. 7 is an example, and the display method and display contents are not limited to the example shown in FIG. 7. By displaying the allocation result, the consumer can confirm that the desired environmental value certificate has been secured.

In addition, in the above-mentioned step S2, the predicted value of the price of the environmental value for each supplier (transaction partner) such as each market or bilateral contract may be used to minimize costs, or the timing of buying and selling the certificate may be determined so as to suppress costs to a predetermined target value or less. That is, the planning unit 15 may determine the planned value of the procurement amount of the environmental value certificate for each supplier for each period into which the planning period is divided, so that the cost of the planning period is minimized, using the predicted result of the unit price of the environmental value certificate for each supplier. FIG. 8 is a diagram showing an example of the predicted value of the price (unit price) of the environmental value for each supplier in this embodiment. The predicted values 201 to 203 indicate the predicted value of the price of the environmental value for each different supplier. Note that the price of the certificate for each certificate type depends on the supplier, the procurement time of the certificate, and the power generation period certified by the certificate, but the predicted result of the unit price of the environmental value certificate for each combination of the supplier and the procurement time of the certificate may be used without considering the power generation period. In the following, an example is described in which the predicted result of the unit price of the environmental value certificate for each combination of the supplier and the certificate procurement time is used without considering the power generation period, but if a predicted result of the unit price of the environmental value certificate that also considers the power generation period is obtained, the power generation period may also be considered. The certificate required amount prediction unit 14 predicts the price of the environmental value based on the environmental value price information. Also, if a predicted value of the price of the environmental value can be obtained from an external source, the predicted value of the price of the environmental value obtained from an external source may be used. Also, although not shown in FIG. 8, the amount procured by the company generally costs less or is lower than other suppliers.

The planning unit 15 determines A _i (T) for each certificate group, using the constraint condition (2) below, so that F shown in the following formula (1) is minimized or F is equal to or less than a target value, assuming that the predicted value of the price of the certificate at time T of the i-th supplier available for purchase is P _i (T) and the amount of the certificate to be procured from the i-th supplier (amount certified by the certificate) is A _i (T). In addition, when there are multiple systems corresponding to the electricity menu, the planning unit 15 determines A i (T) for each certificate group, using the constraint condition (2) below, so that F shown in the following formula (1) is minimized or F is equal to or less than a target value, for a supplier that can procure a certificate of a certificate type belonging to the certificate group. Any algorithm may be used to calculate _{A i (} T). In addition, T is assumed to be an integer indicating each period into which the planning period is divided, and indicates time. B(T) is the total required amount of certificates of the certificate type corresponding to each certificate group for each period, and C(T) is the company's certificate procurement amount, which is predicted, for example, from the actual non-fossil power generation value. Also, in formula (1), Σ _T indicates the total for the planning period, and Σ _i indicates the total for the business partners. For example, if the planning period is one year and the divided period is one month, T is an integer from 1 to 12, and Σ _T indicates the total for 12 months.
F=Σ _T Σ _i (P _i (T)×A _i (T)) …(1)
Σ _T Σ _i (A _i (T))=Σ _T (B(T)-C(T))...(2)

The above formula shows an example in which the required amount of certificates is allocated with priority given to the procurement of the company's own certificates, but the procurement of the company's own certificates may also be included as one of the suppliers. In this case, B(T)-C(T) on the right-hand side of the above formula (2) becomes B(T).

In addition, if the monitoring unit 16 determines that the discrepancy between the planned value and the actual value is large and that it will be difficult to procure the necessary certificates during the planning period, the demand of consumers may be reduced by DR (Demand Response). This reduces the demand of consumers and reduces the required amount of environmental value certificates, making it possible to secure the certificates according to the required amount.

In the above example, the environmental value management device 1 managed the environmental value of the electricity supplied to the consumer who has a contract with the retail electricity supplier, but the environmental value management device 1 of the present embodiment may be applied as a consumer device. For example, the environmental value management device 1 may be introduced as a device of a large consumer such as a company or a local government. The environmental value management device 1 may be a device for a company that bundles multiple consumers (for example, a factory). In this case, for example, the environmental value management device 1 may use the predicted value of the consumer's electricity demand and the target value of the renewable energy ratio to determine the required amount of environmental value certificates, and similarly create a supply and demand plan for environmental value certificates for the planning period. In this case, if the consumer does not have a power generation facility, the consumer may purchase electricity from a retail electricity supplier or the like using a power menu that does not specify renewable energy, or may purchase electricity using a power menu with a renewable energy ratio of 20% or the like. In the former case, the environmental value management device 1 calculates the required amount by multiplying the predicted value of the consumer's electricity demand by the target value of the renewable energy ratio, and creates a supply and demand plan for environmental value to procure environmental value certificates corresponding to the required amount on the market or through a bilateral contract. In the latter case, the environmental value management device 1 calculates the required amount by multiplying the predicted value of the consumer's electricity demand by a ratio obtained by subtracting the ratio specified in the electricity menu from the target value of the renewable energy ratio, and creates a supply and demand plan for environmental value to procure environmental value certificates corresponding to the required amount on the market or through a bilateral contract.

In addition, when the environmental value management device 1 is applied as a consumer device, and the consumer has a power generation facility that generates electricity other than renewable energy and covers the consumer's electricity demand with the power generation facility, the environmental value management device 1 calculates the required amount by multiplying the predicted value of the consumer's electricity demand by the target value of the renewable energy ratio, and creates a supply and demand plan for environmental value to procure environmental value certificates corresponding to the required amount on the market or through a bilateral contract. In addition, when the consumer has a renewable energy power generation facility that generates renewable energy and covers the shortfall with a retail electricity supplier or other power generation facility, the environmental value management device 1 calculates the ratio of the amount of electricity generated by the renewable energy power generation facility to the consumer's electricity demand, calculates the required amount by multiplying the electricity demand by the value obtained by subtracting the calculated ratio from the target value of the renewable energy ratio, and creates a supply and demand plan for environmental value certificates to procure environmental value certificates corresponding to the required amount on the market or through a bilateral contract. In addition, if a consumer generates a surplus in environmental value from their renewable energy power generation equipment, the environmental value management device 1 creates a supply and demand plan for environmental value certificates so that the surplus can be sold on the market or through a bilateral contract.

In the above example, a renewable energy source is not specified, but a power menu in which a renewable energy source is specified may be provided. In this case, the required amount of the certificate corresponding to the consumer who has selected the power menu in which a renewable energy source is specified is determined, for example, as follows. The renewable energy source may be a power source managed by the company, or may be another power source. The certificate required amount prediction unit 14 predicts the amount of power generated for each power source (power plant) of the company's own power sources, and predicts the amount of the certificate certification using the predicted amount of power generation. The certificate required amount prediction unit 14 predicts the amount of power generated for each power source of the company based on, for example, actual values. In addition, for other companies' power sources, the certificate required amount prediction unit 14 predicts the amount of the certificate certification for each power source based on the power procurement plan from that power source. In addition, for a consumer who selects a power menu in which a power source is specified, the certificate required amount prediction unit 14 creates linking information linking (associating) the consumer with the specified power source and registers it in the storage unit 11.

Figure 9 is a diagram showing an example of the linking information of this embodiment. As shown in Figure 9, for example, the linking information includes a linking ID (IDentifier), a linking name indicating a power plant linked to a consumer, a priority, and information indicating the consumer and the power plant. Figure 9 is an example, and the linking information is not limited to the format shown in Figure 9, and may be any information that allows the power plant linked to the consumer to be understood. The certificate required amount prediction unit 14 calculates the power demand prediction result of each consumer who has selected a power menu that specifies a power source, the linking information, and the required amount of certificates for each power plant. If the predicted value of the certified amount of certificates for each power source during the planning period is equal to or greater than the required amount of certificates corresponding to the power menu that specifies the power source, the planning unit 15 creates an environmental value supply and demand plan so that the required amount of certificates corresponding to the power menu that specifies the power source is covered by the certificate of the power source. The planning unit 15 uses the linking information and the predicted value of the power demand of the consumer to create a procurement plan for each power source so as to procure a certificate corresponding to the predicted value of the power demand of the consumer that specifies the power source as a certificate of environmental value corresponding to the power source. For a power menu in which a renewable energy power source is not specified, the planning unit 15 creates a procurement plan corresponding to each required amount of the certificate by the process described in FIG. 4. The monitoring unit 16 monitors the difference between the predicted value of the certified amount of the certificate and the required amount of the certificate corresponding to the power menu that specifies the power source for each power source, and manages the acceptance of new power menus that specify a power source so that the required amount of the certificate corresponding to the power menu that specifies the power source does not exceed the predicted value of the certified amount of the certificate. Note that, although the priority is included in the linking information in the example shown in FIG. 9, the priority does not have to be set. The priority indicates, for example, which power plant's environmental value is to be preferentially allocated to the consumer, but the use of the priority is not limited to this.

Next, the hardware configuration of the environmental value management device 1 of this embodiment will be described. In this embodiment, the environmental value management device 1 functions as the environmental value management device 1 by executing a computer program, which is a computer program describing the processing in the environmental value management device 1, on the computer system. FIG. 10 is a diagram showing an example of the configuration of a computer system that realizes the environmental value management device 1 of this embodiment. As shown in FIG. 10, this computer system includes a control unit 101, an input unit 102, a memory unit 103, a display unit 104, a communication unit 105, and an output unit 106, which are connected via a system bus 107.

In FIG. 10, the control unit 101 is, for example, a processor such as a CPU (Central Processing Unit), and executes a program in which the processing in the environmental value management device 1 of this embodiment is described. The input unit 102 is, for example, composed of a keyboard, a mouse, etc., and is used by the user of the computer system to input various information. The storage unit 103 includes various memories such as a RAM (Random Access Memory) and a ROM (Read Only Memory) and a storage device such as a hard disk, and stores the program to be executed by the control unit 101, necessary data obtained in the process of processing, etc. The storage unit 103 is also used as a temporary storage area for the program. The display unit 104 is composed of a display, an LCD (Liquid Crystal Display Panel), etc., and displays various screens to the user of the computer system. The communication unit 105 is a receiver and a transmitter that perform communication processing. The output unit 106 is a printer, a speaker, etc. Note that FIG. 10 is an example, and the configuration of the computer system is not limited to the example of FIG. 10.

Here, an example of the operation of the computer system until the program of this embodiment is in a state where it can be executed will be described. In the computer system having the above-mentioned configuration, for example, a computer program is installed in the storage unit 103 from a CD-ROM or DVD-ROM set in a CD (Compact Disc)-ROM drive or DVD (Digital Versatile Disc)-ROM drive (not shown). Then, when the program is executed, the program read from the storage unit 103 is stored in the main memory area of the storage unit 103. In this state, the control unit 101 executes processing as the environmental value management device 1 of this embodiment according to the program stored in the storage unit 103.

In the above explanation, a program describing the processing in the environmental value management device 1 is provided on a CD-ROM or DVD-ROM as a recording medium, but this is not limiting. Depending on the configuration of the computer system and the capacity of the program provided, for example, a program provided over a transmission medium such as the Internet via the communication unit 105 may be used.

The program of this embodiment causes a computer system to execute, for example, the steps of predicting a procurement requirement, which is the required amount of environmental value to be procured, using demand ratio information indicating consumer demand regarding the ratio of renewable energy to supplied electricity and a forecasted value of the consumer's electricity demand, and creating a procurement plan for environmental value certificates so that environmental value certificates corresponding to the procurement requirement for the planning period are procured within the planning period.

The power demand forecasting unit 13, the certificate required amount forecasting unit 14, the planning unit 15, the monitoring unit 16, the trading unit 17, and the allocation unit 18 shown in FIG. 2 are realized by executing the computer program stored in the memory unit 103 shown in FIG. 10 by the control unit 101 shown in FIG. 10. The power demand forecasting unit 13, the certificate required amount forecasting unit 14, the planning unit 15, the monitoring unit 16, the trading unit 17, and the allocation unit 18 shown in FIG. 2 are realized by the memory unit 103 shown in FIG. 10. The memory unit 11 shown in FIG. 2 is a part of the memory unit 103 shown in FIG. 10. The transmission/reception unit 10 shown in FIG. 2 is realized by the communication unit 105 shown in FIG. 10. The input reception unit 12 shown in FIG. 2 is realized by the input unit 102 shown in FIG. 10. The environmental value management device 1 may also be realized by a plurality of computer systems. For example, the environmental value management device 1 may be realized by a cloud computer system. The consumer device 3 is also realized by a computer system.

As described above, the environmental value management device 1 of this embodiment calculates the required amount of environmental value using the electricity menu contracted by the consumer and the predicted value of the consumer's electricity demand, and creates a supply and demand plan for environmental value so that the calculated required amount can be procured, thereby achieving the consumer's desire for environmental value.

The configurations shown in the above embodiments are merely examples, and may be combined with other known technologies, or the embodiments may be combined with each other. In addition, parts of the configurations may be omitted or modified without departing from the spirit of the invention.

1 Environmental value management device, 2-1 to 2-3 Customer equipment, 3-1 to 3-3 Customer equipment, 4 Measurement value management device, 5 Environmental value market system, 6 Environmental value trader system, 7 Power generation management device, 8 Environmental value management system, 10, 31 Transmitting/receiving unit, 11 Memory unit, 12, 32 Input reception unit, 13 Power demand forecasting unit, 14 Certificate required amount forecasting unit, 15 Planning unit, 16 Monitoring unit, 17 Trading unit, 18 Allocation unit, 19, 33 Display unit, 20 Distribution line, 21-1 to 21-3 SM, 22 Power generation equipment, 23-1 to 23-3 Load, 24 Power storage equipment.

Claims (17)

a certificate required quantity prediction unit that indicates a predicted value of a consumer's electricity demand and the consumer's request regarding the environmental value of the electricity to be supplied, and calculates a procurement required quantity that is a required quantity of the environmental value to be procured, using the predicted value and corresponding environmental value request information;
a planning unit that creates a procurement plan for the certificates of environmental value so as to procure, within a set planning period, the certificates of environmental value corresponding to the procurement requirement for the set planning period;
An environmental value management device comprising: The environmental value management device according to claim 1, characterized in that the certificate required quantity prediction unit calculates the required quantity of environmental value corresponding to each of the multiple consumers using the predicted value of the electricity demand of each of the multiple consumers and the corresponding environmental value request information, and sets the procurement required quantity as the total value of the calculated quantities for the multiple consumers. an allocation unit that allocates, after the end of the planning period, the certificates of environmental value that have been procured corresponding to the planning period to each of the consumers;
3. The environmental value management device according to claim 2, further comprising: An environmental value management device according to any one of claims 1 to 3, characterized in that the planning unit determines a planned value for the procurement amount of environmental value certificates during the planning period for each source of environmental value certificates. The environmental value management device according to claim 4, characterized in that the procurement sources include trading markets and bilateral transactions for environmental value certificates. The environmental value management device according to claim 4 or 5, characterized in that the procurement source includes a supplier that provides certification for electricity generated by a power source that generates electricity from renewable energy managed by a business operator that operates the environmental value management device. The environmental value management device according to claim 6, characterized in that the planning unit creates a plan to sell a certificate of the environmental value corresponding to the electricity generated by the power source if the total amount of the environmental value corresponding to the electricity generated by the power source during the planning period is greater than the procurement requirement amount during the planning period by a certain amount or more. An environmental value management device according to any one of claims 4 to 7, characterized in that the planning unit uses the predicted results of the unit price of the environmental value certificate for each of the suppliers to determine the planned value of the procurement amount of the environmental value certificate for each of the periods into which the planning period is divided so as to minimize the cost for the planning period. The planning unit determines a planned value of the procurement amount of the environmental value certificate for each of the procurement sources for each period into which the planning period is divided,
the environmental value management device includes a monitoring unit that, when there is a supplier for which the difference between the total planned value from the start of the planning period up to the most recent period and the actual value of the procurement amount of the certificate of environmental value corresponding to the planning period is equal to or greater than a threshold value, causes the environmental value certificate procurement plan to be recreated by instructing the certificate required amount prediction unit and the planning unit to perform reprocessing that reflects the actual value of the procurement amount for each supplier;
9. The environmental value management device according to claim 4, further comprising: The environmental value management device according to claim 9, characterized in that the monitoring unit calculates an actual value of the required amount of environmental value from the start of the planning period to the most recent period using the actual value of the total electricity demand of the consumer from the start of the planning period to the most recent period and the environmental value request information, and when the difference between the predicted value of the total required amount from the start of the planning period to the most recent period and the calculated actual value of the required amount is equal to or greater than a threshold value, instructs the certificate required amount prediction unit and the planning unit to reprocess the amount reflecting the actual value of the required amount, thereby recreating a procurement plan for the environmental value certificate. An environmental value management device according to any one of claims 1 to 10, characterized in that the planning unit determines a planned value for the procurement amount of environmental value certificates for each reporting system, and associates a group of certificates of a certificate type applicable to the reporting system with the planned value corresponding to the reporting system. The environmental value management device according to any one of claims 1 to 11, characterized in that the planning unit uses linking information indicating the link between the consumer who specifies a renewable energy power source and the power source corresponding to the consumer and the predicted value of the consumer's power demand to create a procurement plan so as to procure, for each power source, a certificate corresponding to the predicted value of the power demand of the consumer who specifies the power source as a certificate of environmental value corresponding to the power source. An environmental value management device according to any one of claims 1 to 12, characterized in that the environmental value request information includes at least one of information indicating the ratio of renewable energy to the electricity supplied and a carbon dioxide emission coefficient. A display unit that displays the procurement plan;
13. The environmental value management device according to claim 1, further comprising: An environmental value management device;
A plurality of metering devices each measuring the power demand of a plurality of consumers;
A plurality of customer equipment that can be operated by each of the plurality of customers;
Equipped with
The environmental value management device includes:
an electric power demand forecasting unit that forecasts electric power demand of each of the plurality of consumers by using metering results acquired by the plurality of metering devices;
a certificate required quantity prediction unit that calculates a procurement required quantity, which is a required quantity of the environmental value to be procured, using a prediction result by the power demand prediction unit and environmental value requirement information that indicates a requirement of a consumer regarding the environmental value of the supplied electricity ;
a planning unit that creates a procurement plan for the certificates of environmental value so as to procure, within a set planning period, the certificates of environmental value corresponding to the procurement requirement for the set planning period;
an allocation unit that allocates, after the end of the planning period, the certificates of environmental value that have been procured corresponding to the planning period to each of the consumers;
a transceiver unit that transmits an allocation result by the allocation unit to a corresponding customer device;
Equipped with
the certificate required quantity prediction unit calculates a required quantity of environmental value corresponding to each of the plurality of consumers using the predicted value of the electricity demand of each of the plurality of consumers and the corresponding environmental value request information, and sets the total value of the calculated quantities for the plurality of consumers as the procurement required quantity;
The environmental value management system is characterized in that the consumer device displays the allocation result. An environmental value management method in an environmental value management device, comprising:
A step of indicating a predicted value of a consumer's electricity demand and a request of the consumer regarding an environmental value of the electricity to be supplied, and calculating a procurement requirement, which is a required amount of the environmental value to be procured, using the predicted value and corresponding environmental value requirement information;
creating a procurement plan for certificates of environmental value so as to procure, within a set planning period, certificates of environmental value corresponding to the procurement requirement for the set planning period;
A method for managing environmental values comprising: In the computer system,
A step of indicating a predicted value of a consumer's electricity demand and a request of the consumer regarding an environmental value of the electricity to be supplied, and calculating a procurement requirement, which is a required amount of the environmental value to be procured, using the predicted value and corresponding environmental value requirement information;
creating a procurement plan for certificates of environmental value so as to procure, within a set planning period, certificates of environmental value corresponding to the procurement requirement for the set planning period;
A program characterized by executing the above.

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