Carbon dioxide emission reduction promotion system

Abstract

To provide a carbon dioxide emission reduction promotion system capable of increasing a reduced amount of carbon dioxide emission in each occupied room of a housing complex.SOLUTION: A carbon dioxide emission reduction promotion system includes an energy-saving device installed in each of living rooms 11 divided into sections of a housing complex 10 having the living rooms 11, and a computer 20 configured to be able to communicate with the energy-saving devices. The computer 20 is configured to allow for executing a total reduction amount calculation process for calculating a total reduction amount S, which is the total sum of the reduced amounts of carbon dioxide emissions calculated for each of the living rooms 11 on the basis of usage states of the energy-saving devices, and a contribution index calculation process for calculating a contribution index Kn indicating a contribution concerning the emission reduction of carbon dioxide for each room on the basis of the total reduction amount S and the reduced amount of carbon dioxide emission Xn calculated for each room 11.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a carbon dioxide emission reduction promotion system for promoting the reduction of carbon dioxide emissions, and more particularly to a carbon dioxide emission reduction promotion system for promoting the reduction of carbon dioxide emissions in apartment buildings. [Background technology]

[0002] Recently, efforts have been made to reduce greenhouse gas emissions such as carbon dioxide. For example, in Japan, efforts are being made to contribute to the reduction of greenhouse gas emissions by utilizing the J-Credit Scheme. The J-Credit Scheme is a system in which the government certifies the amount of greenhouse gas emission reduction or absorption achieved through such efforts as the introduction of energy-saving equipment and forest management as "credits." This system is an evolutionary integration of the domestic credit system and the offset credit system, and the credits created (certified) can be used for various purposes, such as achieving the goals of the Low Carbon Society Action Plan and carbon offsetting.

[0003] In relation to the reduction of greenhouse gas emissions, Patent Document 1 discloses a method for monitoring the operation of an energy-saving system. This method transmits data on the amount of energy consumed and the amount of energy generated by the operation of each energy-saving system to a server via a communication line, and the server calculates and manages the running cost reduction amount and reduced carbon dioxide emissions (carbon dioxide emission reduction amount) of each energy-saving system. According to this method, the server aggregates the carbon dioxide emission reduction amounts of multiple energy-saving systems. By selling carbon dioxide credits that are granted for the aggregated carbon dioxide emission reduction amount in this way, it is possible to return profits derived from the relatively small amount of carbon dioxide emission reduction amount to each energy-saving system. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2001-338028 A Summary of the Invention

[0005] (Problem to be solved by the invention) In a collective housing complex having a number of divided living rooms, such as an apartment building, it may be possible to reduce carbon dioxide emissions by using energy-saving equipment in each living room. In this case, the amount of carbon dioxide emission reduction per living room is small, but if the amount of carbon dioxide emission reduction in all living rooms is aggregated, a relatively large amount of carbon dioxide emission reduction can be created. Then, by selling the carbon dioxide credits granted for this, a profit from the sale can be obtained. However, since the profit from the sale is the common property of all residents, it is not necessarily used for the purpose intended by each resident. For example, when the profit from the sale is to be used for repair costs of a collective housing complex, which part to repair is generally decided by majority vote of the residents. Therefore, even if a certain resident's living room creates a larger amount of carbon dioxide emission reduction, the part intended by that resident will not necessarily be repaired. For this reason, it is not possible to increase the motivation to reduce more carbon dioxide emissions, and as a result, it is not possible to increase the amount of carbon dioxide emission reduction.

[0006] An object of the present invention is to provide a carbon dioxide emission reduction promotion system that can increase the amount of carbon dioxide emission reduction in each room of an apartment building. [Means for solving the problem]

[0007] The present invention provides a carbon dioxide emission reduction promotion system for promoting the reduction of carbon dioxide emissions through the use of the energy-saving equipment, comprising energy-saving equipment installed in each dwelling room of an apartment building having a plurality of divided dwelling rooms, and a computer configured to communicate with the energy-saving equipment, wherein the computer is configured to execute a total reduction amount calculation process that calculates a total reduction amount, which is the sum of the carbon dioxide emission reduction amounts calculated for each dwelling room based on the usage status of the energy-saving equipment, and a contribution index calculation process that calculates a contribution index that represents the degree of contribution to carbon dioxide emission reduction for each dwelling room based on the total reduction amount and the carbon dioxide emission reduction amount calculated for each dwelling room.

[0008] According to the present invention, a contribution index is calculated for each room in the apartment building by a computer according to the amount of carbon dioxide emission reduction achieved in each room. Therefore, the residents of each room can check the calculated contribution index to increase their motivation to reduce carbon dioxide emission, and as a result, the amount of carbon dioxide emission reduction can be increased.

[0009] In addition, by constructing a system that reflects the contribution index calculated by the above-mentioned contribution index calculation process in the use of the proceeds from the sale of carbon dioxide credits granted in response to an application to J-Credit for the total reduction amount calculated by computer (for example, repairs, expansion of parking lots, etc.), motivation for carbon dioxide emission reduction can be further increased. As a result, the amount of carbon dioxide emission reduction can be further increased.

[0010] The contribution index calculated in the contribution index calculation process is calculated for each habitable room. The contribution index is calculated to be higher the greater the amount of carbon dioxide emissions reduced in the habitable room (carbon dioxide emission reduction amount), i.e., the greater the contribution to carbon dioxide emission reduction. In this case, the contribution index may be, for example, more points awarded for a greater amount of carbon dioxide emission reduction. Furthermore, the contribution index may be a ratio to the average value of the carbon dioxide emission reduction amount in the habitable room, as shown in an embodiment described later.

[0011] Also The computer has a database of uses in which a plurality of uses of the proceeds from the sale of the carbon dioxide credits granted for the total reduction amount proposed by the residents of a plurality of dwelling rooms are stored in association with the dwelling rooms of the residents who proposed each use. R The computer is configured to calculate a score for each use stored in the use database by taking into account the contribution index calculated in the contribution index calculation process for the room of the resident who proposed the use, and to execute a use determination process for determining the use of the carbon dioxide credit sales profit based on the calculated score. Will be This allows the use of the proceeds from the sale of carbon dioxide credits granted for the total reduction amount to be automatically determined according to the contribution index. The score for each use can be calculated, for example, by summing up the contribution indexes of the rooms of the resident who proposed that use.

[0012] The computer may also be configured to execute an advice information providing process for providing advice information for each dwelling room on how to further reduce carbon dioxide emissions based on the usage status of the energy-saving equipment installed in the dwelling room. By providing advice information for further reducing carbon dioxide emissions to the occupants of each dwelling room by the computer, the amount of carbon dioxide emissions can be further increased.

[0013] In addition, the energy-saving devices installed in each dwelling room are at least the first energy-saving device and the second energy-saving device. vessel In this case, the amount of carbon dioxide emission reduction caused by the use of a plurality of energy-saving devices in one living room can be calculated by adding them together, so that the amount of carbon dioxide emission reduction can be further increased.

[0014] The computer may be configured to execute an application form creation process for creating an application form for applying for carbon dioxide credits based on the total reduction amount calculated in the total reduction amount calculation process. This makes it possible to automatically create an application form required for granting carbon dioxide credits for the total reduction amount. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic diagram showing a carbon dioxide emission reduction promotion system according to this embodiment. [Diagram 2] FIG. 2 is a flowchart showing the flow of a carbon dioxide emission reduction calculation processing routine executed by the calculation unit of the computer. [Diagram 3] FIG. 3 is a diagram showing the flow of a total reduction amount calculation process routine executed by the calculation unit of the computer. [Figure 4] FIG. 4 is a flowchart showing the flow of a contribution index calculation process routine executed by the calculation unit of the computer. [Diagram 5] FIG. 5 is a flowchart showing the flow of a use determination process routine executed by the calculation unit of the computer. [Figure 6] FIG. 6 is a diagram showing an example of information stored in the use database. [Figure 7] FIG. 7 is a diagram showing the score G calculated for each use, together with the dwelling room corresponding to the use. [Figure 8] FIG. 8 is a flowchart showing the flow of an application form preparation process routine executed by the calculation unit of the computer. [Figure 9] FIG. 9 is a flowchart showing a flow of an advice information providing process routine executed by the calculation unit of the computer. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a schematic diagram showing a carbon dioxide emission reduction promotion system according to this embodiment. This carbon dioxide emission reduction promotion system includes a fuel cell cogeneration system 1 as a plurality of first energy-saving devices, a shower toilet 2 with a heated toilet seat as a plurality of second energy-saving devices, a plurality of monitors 3, and a computer 20.

[0017] A plurality of fuel cell cogeneration systems 1, a plurality of shower toilets 2 with heated toilet seats, and a plurality of monitors 3 are installed in an apartment building 10 such as an condominium. The apartment building 10 has a plurality of divided dwelling rooms 11, and each dwelling room 11 is respectively equipped with a fuel cell cogeneration system 1, a shower toilet 2 with heated toilet seats, and a monitor 3. Note that the fuel cell cogeneration system 1 may be installed in an outdoor space (e.g., a balcony) adjacent to the living space of the dwelling room 11. Even in this case, in this specification, the fuel cell cogeneration system 1 is considered to be installed in the dwelling room 11. In other words, any energy-saving equipment used in the dwelling room 11 is considered to be installed in the dwelling room 11.

[0018] The fuel cell cogeneration system 1 and the shower toilet with heated toilet seat 2 are devices that can reduce the amount of electricity used (purchased electricity) from the grid power supply by using them or by using them in energy saving mode. For example, the fuel cell cogeneration system 1 can reduce the amount of electricity used from the grid power supply by generating electricity through the reaction between fuel and oxygen, and can also reduce the amount of fuel used, such as city gas or propane gas, by utilizing the heat generated by the power generation. Also, the shower toilet with heated toilet seat 2 can reduce the amount of electricity used from the grid power supply by, for example, stopping or reducing the amount of electricity used to the heater for warming the heated toilet seat and the heater in the hot water tank at night.

[0019] In addition, the fuel cell cogeneration system 1 and the shower toilet with heated seat 2 are devices that can contribute to reducing carbon dioxide emissions by reducing the amount of electricity used from the grid and the amount of fuel used. For example, the amount of carbon dioxide emitted per unit of electricity generated when the fuel cell cogeneration system 1 is used to generate electricity is less than the amount of carbon dioxide emitted per unit of electricity generated when the grid generates electricity. Therefore, the more electricity is generated by the fuel cell cogeneration system 1, the more carbon dioxide emissions can be reduced, i.e., the amount of carbon dioxide emissions can be reduced. Furthermore, by effectively utilizing the heat generated by the fuel cell cogeneration system 1, the amount of carbon dioxide emissions can be further reduced. Similarly, the shower toilet with heated seat 2 can reduce the amount of electricity used from the grid by using it in energy-saving mode, and thus the amount of carbon dioxide emissions can be reduced by the amount of electricity that has been reduced (i.e., the amount of electricity saved).

[0020] The computer 20 can be installed in a common space such as a lobby of the apartment complex 10 or in the management association 40 of the apartment complex 10. The computer 20 is configured to be able to communicate with the control device of the fuel cell cogeneration system 1 and the control device of the shower toilet with heated seat 2 installed in each dwelling room 11. The communication means may be wireless communication such as Wi-Fi or wired communication. The computer 20 can obtain information on the usage status of the fuel cell cogeneration system 1, such as the amount of power generated, the amount of heat generated, and the usage status of heat, via the communication means. Similarly, the computer 20 can obtain information on the usage status of the shower toilet with heated seat 2, such as the amount of power saved and the time period of use, via the communication means.

[0021] The computer 20 includes a calculation unit 21, a storage unit 22, a display unit 23, and an input unit 24. The calculation unit 21 is configured to realize various functions by executing each process described below. The storage unit 22 stores each process executed by the calculation unit 21, information required when the calculation unit 21 executes each process, values ​​calculated by executing each process, etc. The display unit 23 is configured to be able to display information obtained as a result of execution of each process by the calculation unit 21. The input unit 24 is, for example, a keyboard, and is configured to be able to input various commands to the computer 20 from outside. In addition, the storage unit 22 is configured to include a use database 22a and an advice information database 22b described below.

[0022] Further, an energy usage status display device 4 is installed in each dwelling room 11. The energy usage status display device 4 is configured to sequentially obtain information relating to the amount of electricity usage, gas usage (heat usage), water usage, etc. of each dwelling room 11 and to display the obtained information. The computer 20 is communicatively connected to the energy usage status display device 4 of each dwelling room 11 so as to be able to obtain information displayed on the energy usage status display device 4 (for example, the amount of electricity usage, the amount of gas usage, the amount of water usage, etc.).

[0023] The monitor 3 installed in each dwelling room 11 is communicatively connected to the computer 20, and has a function of displaying information to be provided from the computer 20 to each dwelling room 11. Note that the function of the monitor 3 may be incorporated into the energy usage status display device 4, and the monitor 3 may be omitted.

[0024] Furthermore, the computer 20 is communicatively connected to a terminal 30 provided by the J-Credit Scheme Secretariat, for example, via the Internet.

[0025] In the carbon dioxide emission reduction promotion system configured as described above, carbon dioxide emissions are reduced by using the energy-saving equipment (fuel cell cogeneration system 1 and shower toilet 2 with heated toilet seat) installed in each dwelling room 11. The reduced carbon dioxide emissions are calculated for each dwelling room 11 by computer 20 as the carbon dioxide emission reduction amount. To calculate this carbon dioxide emission reduction amount, calculation unit 21 of computer 20 executes a carbon dioxide emission reduction calculation process.

[0026] Fig. 2 is a flowchart showing the flow of a carbon dioxide emission reduction amount calculation processing routine executed by the calculation unit 21. This routine is started by the operator of the computer 20 inputting a predetermined command to the computer 20 through the input unit 24. When this routine is started, the calculation unit 21 first determines in step (hereinafter, step is abbreviated as S) 11 of Fig. 2 whether the current date and time has reached a predetermined start date and time for starting calculation of the carbon dioxide emission reduction amount. If the current date and time is before the start date and time (S11: No), the calculation unit 21 repeats the process of S11. On the other hand, if the current date and time has reached the start date and time (S11: Yes), the calculation unit proceeds to the process of S12.

[0027] In S12, the calculation unit 21 obtains the usage status of the fuel cell cogeneration apparatus 1 in each dwelling room 11, specifically, the cumulative amount of power generated and the cumulative amount of heat generated from the start date and time to the present, from the fuel cell cogeneration apparatus 1 in each dwelling room 11 for each dwelling room 11. Next, in S13, the calculation unit 21 obtains the usage status of the shower toilet 2 with heated seat in each dwelling room 11, specifically, the cumulative amount of power saved by implementing the power saving mode from the start date and time to the present, from the shower toilet 2 with heated seat in each dwelling room 11 for each dwelling room 11.

[0028] Next, the calculation unit 21 advances the process to S14. In S14, the calculation unit 21 calculates, for each dwelling room 11, a carbon dioxide emission reduction amount αn (n is the identification number of the dwelling room 11) due to the use of the fuel cell cogeneration system 1 from the usage status (power generation amount and heat generation amount) of the fuel cell cogeneration system 1 acquired in S12. Thereafter, the calculation unit 21 advances the process to S15. In S15, the calculation unit 21 calculates, for each dwelling room 11, a carbon dioxide emission reduction amount βn (n is the identification number of the dwelling room 11) due to the use of the shower toilet with heated toilet seat 2 from the usage status (accumulated power saved) of the shower toilet with heated toilet seat 2 acquired in S13. It should be noted that the carbon dioxide emission reduction amounts αn and βn can be calculated using a generally recognized formula.

[0029] Next, in S16, the calculation unit 21 calculates the carbon dioxide emission reduction amount Xn (n is the identification number of the dwelling room 11) for each dwelling room 11 by adding αn and βn. Then, in S17, data of each carbon dioxide emission reduction amount Xn is output to the monitor 3 of each dwelling room 11, and the carbon dioxide emission reduction amounts Xn of all dwelling rooms 11 are output to the display unit 23 of the computer 20.

[0030] Next, the calculation unit 21 advances the process to S18 and determines whether the current date and time has reached a predetermined end date and time for ending the calculation of the carbon dioxide emission reduction amount. If the current date and time is before the end date and time (S18: No), the process returns to S12 and repeats the processes from S12 onwards. On the other hand, if the current date and time has reached the end date and time (S18: Yes), the calculation unit 21 advances the process to S19 and stores the carbon dioxide emission reduction amount Xn of each occupant room 11 last calculated in S16 in the memory unit 22. Thereafter, the calculation unit 21 ends this routine.

[0031] By the calculation unit 21 of the computer 20 executing the carbon dioxide emission reduction amount calculation process described above, the amount of carbon dioxide reduced in each dwelling room 11 (carbon dioxide emission reduction amount Xn) from a specified start date and time to an end date and time is successively updated, and the latest updated carbon dioxide emission reduction amount Xn is displayed on the monitor 3 of each dwelling room 11. Therefore, the resident of each dwelling room 11 can recognize the amount of carbon dioxide that has been reduced in his or her own life. In addition, the carbon dioxide emission reduction amount Xn for all dwelling rooms is displayed on the display unit 23 of the computer 20. At this time, the carbon dioxide emission reduction amount for each dwelling room can be displayed in a ranking format, for example. This allows each resident to know which dwelling room has the largest carbon dioxide emission reduction amount.

[0032] Furthermore, in this embodiment, multiple different types of energy-saving equipment (a fuel cell cogeneration system 1 as a first energy-saving equipment and a shower toilet 2 with a heated toilet seat as a second energy-saving equipment) are installed in each living room 11, and the total amount of carbon dioxide emissions that can be reduced by using these energy-saving equipment (αn+βn) is calculated as the carbon dioxide emission reduction amount (Xn) for each living room 11. This makes it possible to further increase the amount of carbon dioxide emission reduction.

[0033] The calculation unit 21 is also configured to execute a total reduction calculation process that calculates a total reduction S, which is the sum of the carbon dioxide emission reductions Xn calculated for each dwelling room 11 based on the usage status of the energy-saving equipment (the fuel cell cogeneration system 1 and the shower toilet 2 with a heated toilet seat). FIG. 3 is a diagram showing the flow of a total reduction calculation process routine executed by the calculation unit 21. This routine is started when it is determined in S11 of the carbon dioxide emission reduction calculation process in FIG. 2 that the current date and time has reached the start date and time. As shown in FIG. 3, when this routine is started, the calculation unit 21 first acquires the carbon dioxide emission reductions Xn up to the present in each dwelling room 11, which were calculated in S16 of the carbon dioxide emission reduction calculation process, in S21 of FIG. 3. Next, the calculation unit 21 calculates the total reduction S in S22. The total reduction S is the total amount of carbon dioxide emissions reduced in each dwelling room 11 from the start date and time to the present, and is obtained by summing up the carbon dioxide emission reductions Xn in all dwelling rooms 11 acquired in S21. Next, the calculation unit 21 outputs the calculated total reduction amount S to the monitor 3 and the display unit 23 in each dwelling room 11.

[0034] Next, the calculation unit 21 proceeds to the process at S24 to determine whether or not the current date and time has reached the specified end date and time. If the current date and time is before the end date and time (S24: No), the calculation unit 21 returns to the process at S21 and repeats the processes at S21 and after. On the other hand, if the current date and time has reached the end date and time (S24: Yes), the calculation unit 21 proceeds to the process at S25. In S25, the calculation unit 21 stores the total reduction amount S last calculated in S22 in the memory unit 22. Thereafter, the calculation unit 21 ends this routine.

[0035] By the calculation unit 21 executing the total reduction amount calculation process described above, the total reduction amount S is displayed on the monitor 3 of each dwelling room 11 and on the display unit 23 of the computer 20 from a specified start date and time to an end date and time. This allows the occupants of the dwelling rooms 11 to check the total reduction amount S in real time.

[0036] The total reduction amount S calculated as above is the sum of the carbon dioxide emission reduction amount Xn of each dwelling room 11, and is therefore a relatively large reduction amount. Therefore, an application for approval of carbon dioxide credits can be prepared based on the total reduction amount S, and the prepared application for approval can be sent to the J-Credit Scheme Secretariat. The submitted application for approval is verified by the screening committee, and then submitted to the certification committee. If the application for approval is approved, carbon dioxide credits are granted for the applied total reduction amount S.

[0037] The carbon dioxide credits granted as described above can be sold through carbon offsets or the like, which can result in profits from the sale. The profits from the sale thus obtained are profits corresponding to the total amount of carbon dioxide emissions reduced by the residents of each dwelling room 11, and therefore are the common property of all residents, and it is therefore desirable for the management association 40 of the apartment complex 10 to manage them. In this case, the carbon dioxide credits are approved for the management association 40. It is also desirable for the profits from the sale to be used for purposes that benefit all residents. For example, the costs of repairing the apartment complex 10, or the borrowing funds for a parking lot used by the residents of the apartment complex 10, etc., can be used as examples of uses for the profits from the sale.

[0038] The calculation unit 21 of the computer 20 is configured to execute a contribution index calculation process that calculates a contribution index Kn representing the degree of contribution to carbon dioxide emission reduction for each dwelling room 11 based on the total reduction amount S and the carbon dioxide emission reduction amount Xn calculated for each dwelling room. FIG. 4 is a flowchart showing the flow of a contribution index calculation process routine executed by the calculation unit 21. This contribution index calculation process routine is started when it is determined that the current date and time has reached the start date and time in S11 of the carbon dioxide emission reduction amount calculation process in FIG. 2. When this routine is started, the calculation unit 21 first acquires the carbon dioxide emission reduction amount Xn up to the present calculated in S16 of the carbon dioxide emission reduction amount calculation process for each dwelling room 11 in S31 of FIG. 4. Next, the calculation unit 21 acquires the total reduction amount S up to the present calculated in S22 of the total reduction amount calculation process in S32. Note that in S32, the total reduction amount S may be calculated by summing up the carbon dioxide emission reduction amounts of each dwelling room 11 acquired in S31.

[0039] Next, the calculation unit 21 advances the process to S33. In S33, the calculation unit 21 calculates a current contribution index Kn (n is an identification number of the occupant room) for each occupant room 11. This contribution index Kn is calculated by the following formula. Kn = (N / S) × Xn In the above formula, N is the total number of dwelling rooms 11, S is the total reduction amount obtained in S32, and Xn is the carbon dioxide emission reduction amount obtained in S31 for each dwelling room 11. For example, if N is 30 (units), the total reduction amount S is 60 (t-CO2), and the carbon dioxide emission reduction amount Xn is 3 (t-CO2), then Kn is 1.5.

[0040] The contribution index Kn represents the ratio of the carbon dioxide emission reduction amount Xn of each dwelling room 11 to the average carbon dioxide emission reduction amount (S / N), which is the value obtained by dividing the total reduction amount S by the total number N of dwelling rooms 11. When the contribution index Kn is greater than 1, it indicates that the amount of carbon dioxide emission reduced in that dwelling room is greater than the average amount, and when the contribution index Kn is less than 1, it indicates that the amount of carbon dioxide emission reduced in that dwelling room is less than the average amount. Furthermore, the greater the carbon dioxide emission reduction amount Xn, the higher the contribution index Kn, and the higher the contribution index Kn, the higher the proportion of the total reduction amount S, i.e., the higher the contribution to the reduction of carbon dioxide emission. In other words, the contribution index Kn is calculated to be higher the greater the amount of carbon dioxide emission reduced in the dwelling room 110 (carbon dioxide emission reduction amount Xn), i.e., the higher the contribution to the reduction of carbon dioxide emission.

[0041] After calculating the contribution index Kn for each dwelling room 11 in S33, the calculation unit 21 outputs the calculated contribution index Kn in S34. In this case, the computer 20 outputs the contribution index Kn to each monitor 3 and the display unit 23 so that each contribution index Kn is displayed on the monitor 3 of each dwelling room 11 and the contribution index Kn of all dwelling rooms 11 is displayed on the display unit 23 of the computer 20.

[0042] Next, the calculation unit 21 advances the process to S35 and determines whether the current date and time has reached the specified end date and time. If the current date and time is before the end date and time (S35: No), the calculation unit 21 returns the process to S31 and repeats the processes from S31 onwards. On the other hand, if the current date and time has reached the end date and time (S35: Yes), the calculation unit 21 advances the process to S36. In S36, the calculation unit 21 stores in the memory unit 22 the contribution index Kn of each occupant room 11 last calculated in S33. Thereafter, the calculation unit 21 ends this routine.

[0043] By the computer 20 executing the above-mentioned contribution index calculation process, the contribution index Kn is displayed in real time on the monitor 3 of the dwelling room 11 from the specified start date and time to the specified end date and time. This allows the resident of each dwelling room 11 to recognize the contribution index Kn of the carbon dioxide emission reduction he or she has made in real time. Furthermore, since the contribution index Kn of all the dwelling rooms 11 is displayed on the display unit 23 of the computer 20, it is possible to compare the contribution index Kn of each resident. This stimulates the competitive spirit of each resident in reducing carbon dioxide emissions, further increasing their motivation to reduce carbon dioxide emissions, and it is expected that the amount of carbon dioxide emissions reduced will be further increased.

[0044] In addition, the calculated contribution index Kn can be reflected in the use of the proceeds from the sale of the carbon dioxide credits granted for the total reduction amount S. For example, suppose that a questionnaire was conducted on the residents of the apartment building 10 regarding the use of the proceeds from the sale of the carbon dioxide credits, and three uses, namely, use A, use B, and use C, were proposed. In this case, the use can be determined by taking into account the contribution index calculated for the resident's room who proposed use A, the contribution index calculated for the resident's room who proposed use B, and the contribution index calculated for the resident's room who proposed use C. For example, when voting is conducted regarding the use of the proceeds from the sale, the number of votes for each resident's room is not 1, but can be adjusted for each resident's room so that the number of votes is larger for a larger contribution index and smaller for a smaller contribution index. Then, the contribution index can be reflected in the use of the proceeds from the sale by determining the use of the proceeds from the sale in response to the voting result based on the adjusted number of votes. By constructing a mechanism for determining the use of the proceeds from the sale according to such a contribution index, the motivation for reducing carbon dioxide emissions can be further increased. As a result, it is possible to further reduce carbon dioxide emissions.

[0045] In this embodiment, the calculation unit 21 of the computer 20 is configured to execute a use determination process, thereby automatically determining the use of proceeds from the sale of carbon dioxide credits. FIG. 5 is a flowchart showing the flow of a use determination process routine executed by the calculation unit 21. This routine is started by an operator of the computer 20 inputting a predetermined command to the computer 20 through the input unit 24. When this routine is started, the calculation unit 21 first determines in S41 of FIG. 5 whether the current date and time is after a predetermined end date and time. If the current date and time is before the end date and time (S41: No), the calculation unit 21 repeats this process. On the other hand, if the current date and time is after the end date and time (S41: Yes), the calculation unit 21 proceeds to S42.

[0046] In S42, the calculation unit 21 reads out the final contribution index Kn of each dwelling room stored in the memory unit 22. Next, in S43, the calculation unit 21 accesses the use database 22a to read out a plurality of uses proposed in advance and the dwelling rooms of the resident for whom each use is proposed.

[0047] FIG. 6 shows an example of information stored in the use database 22a. As shown in FIG. 6, the use database 22a stores the contents of a plurality of uses (use A, use B, and use C in FIG. 7) of the sale profit of the carbon dioxide credits granted for the total reduction amount S proposed in advance by the residents of a plurality of dwelling rooms 11, and the dwelling rooms of the residents who proposed each of the plurality of uses in a corresponding state. In the example shown in FIG. 6, the dwelling rooms of the resident who proposed use A are dwelling room a, dwelling room b, and dwelling room c, the dwelling rooms of the resident who proposed use B are d, dwelling room e, and dwelling room f, and the dwelling rooms of the resident who proposed use C are d, dwelling room h, and dwelling room i. The calculation unit 21 reads out such information that associates the use with the dwelling room in S43.

[0048] Next, in S44, the calculation unit calculates a score G for each use stored in the use database 22a by taking into account the contribution index Kn of the dwelling room of the resident who proposed the use. Specifically, the score G is the sum of the contribution index Kn of the dwelling room of the resident who proposed each use.

[0049] FIG. 7 shows the score G calculated for each use, together with each use and the corresponding dwelling room. As shown in FIG. 7, when the residents of dwelling rooms a, b, and c propose use A, the score G of use A is the sum of the contribution index Ka of dwelling room a, the contribution index Kb of dwelling room b, and the contribution index Kc of dwelling room c, that is, Ka+Kb+Kc. When the residents of dwelling rooms d, e, and f propose use B, the score G of use B is Kd+Ke+Kf, and when the residents of dwelling rooms g, h, and i propose use C, the score G of use C is Kg+Kh+Ki. The calculation unit 21 performs such calculations in S44.

[0050] After calculating the score G for each use, the calculation unit 21 extracts the use with the highest score G (S45). The calculation unit 21 then determines the use extracted in S45 as the use of the proceeds from the sale (S46), and outputs the determined use of the proceeds from the sale to the monitor 3 and display unit 23 of each dwelling room 11 (S47). The calculation unit 21 then ends this routine.

[0051] In this way, in the use determination process, the score G taking into account the contribution index Kn is calculated for each use, and the use of the proceeds from the sale of the carbon dioxide credits is automatically determined based on the calculated score G. The determined use is then output to the display unit 23 of the computer 20 and the monitor 3 of each dwelling room 11. Therefore, the use determined as the use of the proceeds from the sale is displayed on the display unit 23 of the computer 20 and the monitor 3 of each dwelling room 11. This allows the residents of the apartment building 10 to recognize how the proceeds from the sale will be used.

[0052] Incidentally, in order to receive carbon dioxide credits, a project must be registered in advance through a prescribed procedure, and then an application form (monitoring report) must be prepared and submitted based on the total reduction amount S as described above. In this embodiment, the calculation unit 21 executes an application form preparation process, and is configured to automatically prepare an application form for applying for carbon dioxide credits based on the total reduction amount S calculated in the total reduction amount calculation process, and to transmit the application form online to the terminal 30 of the J-Credit Scheme Secretariat.

[0053] FIG. 8 is a flowchart showing the flow of the approval application preparation processing routine executed by the calculation unit 21. This routine is started by the operator of the computer 20 inputting a predetermined command to the computer 20 through the input unit 24 after a predetermined end date and time. As shown in FIG. 8, when this routine is started, first, the calculation unit 21 reads out the final total reduction amount S stored in the storage unit 22 in S51. Next, the calculation unit 21 advances the process to S52 and prepares an approval application based on the total reduction amount S. Next, the calculation unit 21 judges whether or not to submit the approval application prepared in S52 (S53). For the judgment of S53, for example, the display unit 23 of the computer 20 can be controlled so that a first icon indicating "Submit this approval application" and a second icon indicating "Do not submit this approval application" are displayed on the display unit 23 of the computer 20 together with the prepared approval application. Then, it is possible to configure so that the judgment result of S53 becomes Yes when the operator of the computer 20 clicks the first icon, and the judgment result of S53 becomes No when the operator of the computer 20 clicks the second icon.

[0054] If the determination result of S53 is No, the calculation unit 21 ends this routine. On the other hand, if the determination result of S53 is Yes, the calculation unit 21 proceeds to the process of S54 and transmits the data of the approval application form online to the terminal 30 of the J-Credit Scheme Secretariat. This causes the approval application form to be submitted online. Thereafter, the calculation unit 21 ends this routine.

[0055] By having the calculation unit 21 of the computer 20 execute the above-mentioned license application creation process, the license application is automatically created and can be submitted online, thereby reducing the time required for creating and submitting the license application.

[0056] The calculation unit 21 of the computer 20 is also configured to be able to execute advice information provision processing that provides advice information for further reducing carbon dioxide emissions (i.e., increasing the amount of carbon dioxide emission reduction) based on the usage status of the energy-saving devices (fuel cell cogeneration system 1 and shower toilet with heated toilet seat 2) installed in the dwelling room 11. FIG. 9 is a flowchart showing the flow of the advice information provision processing routine executed by the calculation unit 21. This routine is started when it is determined in S11 of the carbon dioxide emission reduction amount calculation processing in FIG. 2 that the current date and time has reached a predetermined start date and time. When this routine is started, the calculation unit 21 first acquires the usage status of the fuel cell cogeneration system 1 in each dwelling room 11 in S61 of FIG. 9. Next, the calculation unit 21 acquires the usage status of the shower toilet with heated toilet seat 2 in each dwelling room 11 in S62. Next, the calculation unit 21 acquires the usage status of the energy (electricity, gas, water, etc.) in each dwelling room 11 from the energy usage status display device 4 of each dwelling room 11 in S63.

[0057] Next, in S64, the calculation unit 21 inquires of the advice information database 22b about the usage status of the energy-saving devices (the fuel cell cogeneration system 1 and the shower toilet 2 with a heated toilet seat) in each dwelling room 11 and the energy usage status of each dwelling room 11. In this advice information database 22b, the energy usage status of the energy-saving devices and each dwelling room 11 is stored in a state linked to advice information. For example, in a usage situation in which the heat that can be stored in the fuel cell cogeneration system 1 has reached an upper limit and heat is being discarded (discharged), the advice information database 22b stores such a usage status of the fuel cell cogeneration system 1 linked to advice information that advises the user to use the heat, for example, for bathing. In addition, in a usage situation in which the power usage status in the dwelling room 11 exceeds the maximum value of the power generation power of the fuel cell cogeneration system 1 (for example, 700 W), the advice information database 22b stores such energy usage status linked to advice information that advises the user to reduce power consumption. In S64, the computer 20 inquires about the energy usage status and the usage status of the energy-saving devices in each dwelling room 11 in the advice information database, and searches for advice information linked to the inquired usage status.

[0058] Next, in S65, the calculation unit 21 determines whether or not advice information has been extracted as a result of querying the advice information database 22b. If advice information has not been extracted (S65: No), the calculation unit 21 ends this routine. On the other hand, if advice information has been extracted (S65: Yes), the calculation unit 21 advances the process to S66 and outputs the extracted advice information to the monitor 3 of the occupant room 11 in the usage status. Next, the calculation unit 21 determines whether or not the current date and time is a predetermined end date and time (S67). If the current date and time is not the end date and time (S67: No), the calculation unit 21 returns the process to S61 and repeats the processes from S61 onwards. On the other hand, if the current date and time is not the end date and time (S67: Yes), the calculation unit 21 ends this routine.

[0059] By executing the advice information provision process described above by the calculation unit 21 of the computer 20, the occupants of each dwelling room 11 can receive advice on how to increase the amount of carbon dioxide emission reduction. Such advice encourages each occupant to strive to live a more energy-efficient life, which results in a greater amount of carbon dioxide emission reduction.

[0060] Although the embodiment of the present invention has been described above, the present invention should not be limited to the above embodiment. For example, in the above embodiment, an example is shown in which two different types of energy-saving devices are installed in the living room 11, but the number of energy-saving devices installed in the living room may be one or three or more. The number of energy-saving devices may be different for each living room 11. In addition, in the above embodiment, the fuel cell cogeneration system 1 and the shower toilet 2 with a heated toilet seat are exemplified as energy-saving devices, but other energy-saving devices may be installed in each living room. In this way, the present invention can be modified without departing from the spirit of the invention. [Explanation of symbols]

[0061] 1... fuel cell cogeneration device (energy saving device, first energy saving device), 2... shower toilet with heated toilet seat (energy saving device, second energy saving device), 3... monitor, 4... energy usage status display device, 10... apartment building, 11... dwelling room, 20... computer, 21... calculation unit, 22... memory unit, 22a... usage database, 22b... advice information database, 23... display unit, 24... input unit, 30... terminal

Claims

1. A carbon dioxide emission reduction promotion system for promoting the reduction of carbon dioxide emissions by using energy-saving devices, the system comprising: an energy-saving device installed in each dwelling room of an apartment building having a plurality of divided dwelling rooms; and a computer configured to be capable of communicating with the energy-saving devices, the carbon dioxide emission reduction promotion system comprising: The computer, A total reduction amount calculation process for calculating a total reduction amount, which is a sum of the carbon dioxide emission reduction amounts calculated for each of the living rooms based on the usage status of the energy-saving devices; A contribution index calculation process for calculating a contribution index representing a contribution to the carbon dioxide emission reduction for each dwelling room based on the total reduction amount and the carbon dioxide emission reduction amount calculated for each dwelling room; is configured to be executable, The computer further comprises: A database of uses is provided in which a plurality of uses of the proceeds from the sale of the carbon dioxide credits granted for the total reduction amount proposed by the residents of a plurality of dwelling rooms are stored in association with the dwelling rooms of the residents who proposed each use; For each use stored in the use database, a score is calculated by taking into account the contribution index calculated in the contribution index calculation process for the room of the resident who proposed the use, and a use determination process is executed to determine the use of the sales profit of the carbon dioxide credits based on the calculated score. Carbon dioxide emission reduction promotion system.

2. The carbon dioxide emission reduction promotion system according to claim 1, The computer includes: The system is configured to execute an advice information providing process for providing advice information for each dwelling room to further reduce carbon dioxide emissions based on a usage status of the energy-saving device installed in the dwelling room. Carbon dioxide emission reduction promotion system.

3. The carbon dioxide emission reduction promotion system according to claim 1 or 2, the energy-saving devices include at least a first energy-saving device and a second energy-saving device of a different type from the first energy-saving device; Carbon dioxide reduction promotion system.

4. The carbon dioxide emission reduction promotion system according to any one of claims 1 to 3, The computer includes: The total reduction amount calculation process is configured to execute an application form creation process for creating an application form for applying for carbon dioxide credits based on the total reduction amount calculated in the total reduction amount calculation process. Carbon dioxide reduction promotion system.

Images