Fuel conversion support calculation device and fuel conversion support calculation computer program

Abstract

To provide a fuel conversion support calculation device that calculates a charge for combined gas use, to support a gas business operator who proposes combined gas use to an all-electric customer.SOLUTION: A control unit 23 of a fuel conversion support calculation device 20 calculates an electricity charge before a fuel conversion and electricity and gas charge after fuel conversion so that a charge can be compared when replacing an electric appliance with a gas appliance. In addition, a total cost before and after the fuel conversion are calculated so that the total cost, which is a sum of an initial cost of equipment and a running cost for a useful life, can be compared. On the basis of a result of these calculations, a fuel conversion proposer among gas operators can make a fuel conversion proposal that brings a substantial benefit to a user.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a fuel conversion support calculation device for calculating fuel consumption and fuel usage fees when performing fuel conversion to replace at least one of existing electrical appliances with corresponding gas appliances in a consumer's home in a fully electrified state, and a fuel conversion support calculation computer program.

Background Art

[0002] In recent years, from the perspective of saving fuel costs, etc., all-electricity has been widely adopted in individual houses, apartment houses, etc. In an all-electric house, everything is handled with electricity without using gas, and water heaters such as EcoCute (registered trademark), IH cooking heaters, heat storage heaters, and other electrical appliances are used. Also, not only when building a house that is all-electric from the beginning, but also the number of cases where consumers who have been using both electricity and gas are switching to all-electricity is increasing.

[0003] Patent Document 1 proposes an all-electricity calculation system for calculating how much the fuel cost will be by all-electricity to help consumers who are using both electricity and gas, etc. consider all-electricity. Also, Patent Document 2 proposes an electricity fee calculation system for calculating the electricity fee when applying a plurality of electricity fee plans.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Here, when fully electrified, it is said that the advantage is that the heating cost (running cost) is lower compared to the case of using electricity and gas in combination. However, IH cooking heaters and Eco Cute (registered trademark) have the disadvantage that the initial cost (introduction cost) is higher than that of the corresponding gas appliances. When considering the service life of the equipment and comparing the total costs, it cannot be said that the fully electrified case is necessarily more advantageous than the case of using electricity, gas, etc. in combination. For example, in some cases, replacing the water heater in a fully electrified household with a gas water heater can reduce the total cost.

[0006] However, at present, even if gas providers, general contractors, housing manufacturers, or other combustion proposers, or consumers pay attention to this point, it is difficult to easily know to what extent benefits can be obtained, or whether there are no benefits, when some electrical equipment is replaced with corresponding gas equipment.

[0007] In view of this point, an object of the present invention is to provide a fuel conversion support calculation device and a fuel conversion support computer program capable of calculating the fees when using gas equipment in combination so that combustion proposers (gas providers, general contractors, housing manufacturers, and other businesses) can support fuel conversion proposals that are substantially beneficial to fully electrified consumers.

Means for Solving the Problem

[0008] The present invention is a fuel conversion support calculation device that calculates the fuel consumption and fuel usage fees when performing fuel conversion by replacing at least one existing electrical equipment in a fully electrified consumer household with a corresponding gas equipment, an input / output unit, an information registration unit, an information processing unit composed of a computer, and is provided with, the information processing unit is A fuel consumption pre - fuel usage amount and usage fee calculation unit that calculates the monthly electricity usage amount and electricity usage fee of the electrical equipment based on the actual electricity usage situation and electricity fee system of the consumer's house included in the input information from the input / output unit or the registration information of the information registration unit; A fuel consumption pre - running cost and total cost calculation unit that calculates the pre - fuel running cost, which is the total of the electricity usage fees for the service life, and the pre - fuel total cost, which is the sum of the pre - fuel running cost and the initial cost of the electrical equipment, based on the assumed service life and initial cost of the electrical equipment included in the input information from the input / output unit or the registration information of the information registration unit; A fuel consumption post - fuel usage amount and usage fee estimation unit that estimates the monthly electricity and gas usage amounts and electricity and gas usage fees of the gas equipment based on the electricity usage amount of the electrical equipment, the input information from the input / output unit or the registration information of the information registration unit, the fuel efficiency of the electrical equipment and the gas equipment, and the gas fee system; A fuel consumption post - running cost and total cost estimation unit that estimates the post - fuel running cost, which is the total of the electricity and gas usage fees for the service life, and the post - fuel total cost, which is the sum of the post - fuel running cost and the initial cost of the gas equipment, based on the initial cost of the gas equipment included in the input information from the input / output unit or the registration information of the information registration unit; It is characterized by comprising the above.

[0009] Here, the information registration unit An electricity fee registration unit in which a plurality of electricity fee systems applicable to the electrical equipment provided by a plurality of power companies are registered; A gas fee registration unit in which a plurality of gas fee systems used for calculating the gas usage fee when using the gas equipment are registered; An equipment information registration unit in which electrical equipment information including the fuel efficiency, service life, and initial cost of the electrical equipment, and gas equipment information including the fuel efficiency and initial cost of the gas equipment are registered; It can be configured to include the above. In this case, the pre-combustion fuel usage and usage fee calculation unit calculates the electricity usage fee from the electricity usage amount based on the electricity fee system selected by the input from the input / output unit. Also, the post-combustion fuel usage and usage fee estimation unit estimates the gas usage amount and the gas usage fee based on the gas fee system selected by the input from the input / output unit.

[0010] The calculation and estimation results obtained by the calculation device for fuel conversion support of the present invention are used when a combustion proposer, for example, a gas company, proposes fuel conversion to a customer who uses all electricity. Assuming the use by a plurality of combustion proposers, the information registration unit of the present invention includes a user registration unit that registers the combustion proposer as a user, the information processing unit includes a user authentication unit that permits access by the combustion proposer registered in the user registration unit, and the input / output unit includes a communication unit that transmits and receives information to and from an external device so that the combustion proposer can access from a gas company side device (communication terminal) via a communication line. In this case, the information registration unit includes a customer registration unit that associates and registers, via the communication unit, information for identifying the customer from the combustion proposer whose access is permitted, and information regarding the actual electricity usage situation of the customer, with the combustion proposer, and a selected tariff system registration unit that registers the gas tariff system and the electricity tariff system selected by the combustion proposer via the communication unit. The pre-combustion usage fee calculation unit and the pre-combustion fuel usage and usage fee calculation unit perform calculation processing using the selected and registered gas tariff system and electricity tariff system. In addition, so that the fuel conversion result can be easily used by the fuel conversion proposer, the information processing unit includes a list creation unit that generates a list showing the electricity consumption, the electricity charge, the pre-fuel conversion running cost, and the pre-fuel conversion total cost, and the electricity and gas consumption, the electricity and gas charge, the post-fuel conversion running cost, and the post-fuel conversion total cost via the input / output unit and an output control unit for outputting them. The list describes the fuel conversion proposer as the fuel conversion proposer and the customer associated with the fuel conversion proposer as the fuel conversion destination. The created list is transmitted to the fuel conversion proposer via the communication unit.

[0011] As a typical example when proposing fuel conversion to an all-electric customer, there is a case of proposing to replace the Eco Cute (registered trademark), which is an electric device being used, with the Eco Joze (registered trademark), which is a gas device.

[0012] Next, the present invention is a fuel conversion support calculation computer program used to estimate the fuel consumption and fuel cost when performing fuel conversion to replace at least one existing electric device in a customer's home in an all-electric state with a corresponding gas device, In order to cause a computer to function as the information processing unit of the above fuel conversion support calculation device, the computer is a pre-fuel conversion fuel consumption / charge calculation unit that calculates the monthly electricity consumption and electricity charge of the electric device based on the actual electricity usage situation and electricity rate system of the customer's home included in the input information from the input / output unit or the registration information of the information registration unit; a pre-fuel conversion running cost / total cost calculation unit that calculates the pre-fuel conversion running cost, which is the total of the electricity charges for the service life of the electric device, and the pre-fuel conversion total cost, which is the sum of the pre-fuel conversion running cost and the initial cost of the electric device, based on the assumed service life and initial cost of the electric device included in the input information from the input / output unit or the registration information of the information registration unit; Based on the electricity consumption of the electrical equipment, the input information from the input / output unit, or the registered information of the information registration unit, including the electrical equipment, the fuel efficiency of the gas equipment, and the gas rate system, a post-conversion fuel consumption and cost estimation unit that estimates the monthly electricity and gas consumption and electricity and gas usage costs of the gas equipment, and, Based on the initial cost of the gas equipment included in the input information from the input / output unit or the registered information of the information registration unit, a post-conversion running cost that is the total of the electricity and gas usage costs for the service life, and a post-conversion total cost that is the sum of the post-conversion running cost and the initial cost of the gas equipment, a post-conversion running cost and total cost estimation unit It is characterized by functioning as such.

Effect of the Invention

[0013] According to the present invention, a user who is a conversion proposer (gas company, construction company, house builder, or other company) can estimate the post-conversion electricity and gas consumption, electricity and gas usage costs, post-conversion running cost, and post-conversion initial cost by simply performing a simple input operation. Also, when proposing the combined use of electricity and gas, the post-conversion electricity and gas consumption, electricity and gas usage costs, post-conversion running cost, and post-conversion initial cost calculated can be compared with the pre-conversion all-electricity electricity consumption and all-electricity electricity usage costs calculated based on the actual implementation situation, as well as the pre-conversion running cost and pre-conversion initial cost. Conversion proposers such as gas companies can check the state after fuel conversion without complicated processing and spending a lot of time, and can propose a fuel conversion that is substantially beneficial to all-electricity consumers to the consumers. For consumers, it is also convenient because they can know the state before and after fuel conversion as objective numerical values.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Mode for Carrying Out the Invention

[0015] Hereinafter, with reference to the drawings, a trial calculation system for fuel conversion support according to an embodiment to which the present invention is applied will be described. Note that the present invention is not limited to the embodiments described below.

[0016] FIG. 1 is a schematic block diagram showing the configuration of a trial calculation system for fuel conversion support according to the present embodiment. The trial calculation system 1 for fuel conversion support calculates the fuel consumption and fuel usage fee when performing fuel conversion by replacing at least one electric device in a customer's home in an all-electric state with a gas device having the same function and capacity as the electric device, in response to requests from registered fuel conversion proposers, in this example, multiple gas utilities, and provides the trial calculation results to the gas utilities. For example, it can be used when proposing to replace the EcoCute (registered trademark) of an electric water heating system in an all-electric customer's home with the EcoJozu (registered trademark) of a gas water heating system to combine the use of electricity and gas.

[0017] The fuel conversion support estimation system 1 is composed of an estimation device 20 for fuel conversion support managed by a system administrator 2 who operates this system, a business operator side device 40 managed by each of a plurality of gas companies 4 who are fuel conversion proposers using this system, and a communication line 6 connecting between the fuel conversion support estimation device 20 and each business operator side device 40. The fuel conversion support estimation device 20 is constructed as, for example, a cloud server and is used by the gas company 4 that has accessed a site on the Internet. The fuel conversion support estimation device 20 includes an input / output unit 21, an information registration unit 22, and a control unit 23 that mainly functions as an information processing unit. The information registration unit 22 includes a part constructed as a database and a part constructed as a storage unit built in the control unit 23. The input / output unit 21 includes an input device 211 including a keyboard and others, an output device 212 including a monitor and others, and a communication unit 213 that communicates with the business operator side device 40 and others via the communication line 6.

[0018] The information registration unit 22 includes the following respective registration units.

Table 1

[0019] The information processing unit of the control unit 23 is provided with the following respective units.

Table 2

[0020] Next, the procedure for calculating fuel conversion using the fuel conversion support calculation system 1 will be described. Prior to using the fuel conversion support calculation system 1, the gas company 4 performs the application procedure for user registration for using the system 1. For example, the operator-side device 40 accesses the fuel conversion support calculation device 20 to perform the application procedure for user registration. The system administrator 2 issues an authentication user ID and password to the gas company 4 that has applied for user registration, and performs a user registration procedure for registering the gas company 4 as a user in the user registration unit 221. Under the authority of the system administrator 2, new user registration, editing, and deletion (setting of user ID and password, setting of validity / invalidity of login) are performed.

[0021] Also, under the authority of the system administrator 2, a common setting registration procedure is performed for the fuel conversion support calculation device 20 via the input / output unit 21. FIG. 2 shows an example of the common setting registration screen of the output device 212. As shown in this figure, the common items to be set include the electricity tariff systems of each electric power company. For example, as shown in FIG. 2, for each electric power company, the old plan, the new plan, the per-kWh electricity meter (contract current, incremental power setting, per-kWh electricity meter, and as other information, free tariff fuel cost adjustment unit price, regulated tariff fuel cost adjustment unit price, renewable energy power generation promotion levy unit price, subsidy, CO 2 emission factor, etc.) are included. The input information is registered in the electricity tariff registration unit 222. Also, the common items include the equipment efficiencies of electrical equipment (such as Eco Cute) and gas equipment (such as Eco Joze), and these are registered in the equipment information registration unit 224.

[0022] FIG. 3 is a schematic flowchart showing the operation procedure of the gas company 4 when calculating fuel conversion using the fuel conversion support calculation system 1, and FIG. 4 shows an example of the simulation information registration screen (registration items of the information registration unit 22). The operation procedure will be described with reference to these figures.

[0023] The gas utility 4 registered by the user accesses the fuel conversion support calculation device 20 from the gas utility side device 40 and can use the device 20 after being authenticated by the user authentication unit 231 of the control unit 23. For example, on the simulation information registration screen displayed on the main screen provided via the input / output unit 21 by the control unit 23 of the device 20, input and selection operations of information necessary for the fuel conversion simulation are performed. For example, as shown in FIG. 4, the simulation information registration screen 7 includes the following selection registration columns, simulation start buttons, etc. Menu display column 70 Business name / Proposal destination name (customer name) registration column 71 Electricity charge selection registration column 72 Electricity consumption registration column 73 Fuel conversion equipment selection column 74 Gas charge registration column 75 Simulation start button 76

[0024] The gas utility 4 inputs the information necessary for the fuel conversion calculation into each column of the simulation information registration screen 7. First, a business name / proposal destination name registration procedure (ST1) is performed in which the company name and the name of the customer who is the proposal destination for fuel conversion are input into the business name / proposal destination name registration column 71. These input information are registered in the customer registration unit 225 in a form associated with each other. In the following, for simplicity of explanation, the case of proposing a fuel conversion to replace the Eco-Cute with the Eco-Joes in the all-electric customer's house will be mainly described.

[0025] Next, gas company 4 proceeds to the electricity charge selection registration column 72 and performs the electricity charge selection registration procedure (ST2). For example, information indicating the tariff system of the power company registered in the electricity charge registration unit 222 is displayed. In order to calculate the electricity charge before fuel conversion, which is the comparison source of the estimated value after fuel conversion, gas company 4 selects the contract ampere and displays the basic electricity charge. Also, the all-electricity tariff system (all-electricity plan) is selected, and the electricity usage input method is selected. As an example, as shown in FIG. 4, for example, "30A" is selected as the contract ampere, the basic electricity charge is displayed, "new plan" is selected as the all-electricity plan, and "input for 12 months" is selected as the electricity usage input method, and the all-electricity basic charge of the selected new plan is displayed. These selection registration information is registered in the selected tariff system registration unit 226 in a form associated with gas company 4.

[0026] Subsequently, gas company 4 proceeds to the electricity usage registration column 73 and performs the electricity usage registration procedure (ST3). Input the actual usage status in the proposed customer's home, including the basic charge for calculation using the selected and registered electricity tariff system and the electricity usage for each time period. As an example, as shown in FIG. 4, input the "basic charge", "daytime usage", "home time usage", and "nighttime usage" for each month. The actual usage status of the proposed customer's home that is input is registered in the customer registration unit 225 in a form associated with gas company 4.

[0027] Next, proceed to the combustion equipment selection column 74 and perform a combustion equipment selection procedure (ST4) to select the electrical equipment to be combusted. As an example, as shown in FIG. 4, there are provided a selection column for selecting only the Eco Cut as the equipment to be combusted and a selection column for selecting the IH equipment and the Eco Cut, and either one is selected. Also, as a method for estimating the electricity consumption of the Eco Cut, a selection column for selecting whether to calculate from the ratio of the total monthly electrical equipment usage or from the hot water supply load (heat quantity) by region classification and number of household members is provided. When the latter is selected, input columns for the region classification and the number of household members are provided. Further, as the equipment efficiency of the Eco Cut, a selection column for selecting whether to use the estimated equipment efficiency for each month (value set by the administrator) or to input and use the annual equipment efficiency is provided. When the latter is selected, an input column for the annual equipment efficiency is provided. The selected and input information is registered in the customer registration unit 225 in a form associated with the gas company 4.

[0028] Next, the gas company 4 proceeds to the gas fee registration column 75 and performs a gas fee registration procedure (ST5) for trial calculation. The gas company 4 inputs, for example, two types: the standard gas fee system (basic fee, per-unit volume price) and the new fee system (basic fee, usage fee of the new fee plan, special unit price for hot water supply, etc.) when applying the new fee plan newly prepared for the proposal of fuel conversion. Also, input the calorific value of the gas and the CO 2 emission coefficient of the gas. The input information is registered in the gas fee registration unit 223 in a form associated with the gas company 4. As an example, as shown in FIG. 4, a selection column for performing "simulation using the new fee menu" or "simulation using only the standard fee", input columns for the standard fee (gas basic fee, per-unit volume price) and the new fee menu (gas basic fee, plan usage fee, per-unit volume price, fee for hot water supply usage), an input column for the calorific value of the gas, and an input column for the CO 2 emission coefficient of the gas are provided.

[0029] Next, the gas company 4 selects the "Equipment Initial Cost Registration" menu 77 from the menu display column 70 displayed in the upper left of the screen in FIG. 4, for example, and performs the equipment cost registration procedure (ST6). For example, for each input field on the equipment initial cost registration screen that is overlaid and displayed on the simulation information registration screen 7, enter the initial cost of the electrical equipment to be the target of fuel conversion, such as an eco-cute, and enter the initial cost of the proposed gas equipment, such as an eco-joze. The input information is registered in the equipment information registration unit 224 in a form associated with the gas company 4.

[0030] By registering the necessary information in this way, it becomes possible to estimate fuel conversion. The gas company 4 clicks the simulation start button 76 displayed at the lower end of the screen in FIG. 4, for example, and proceeds to the simulation procedure (ST7). When the control unit 23 is instructed to start the simulation, in the pre-prepared calculation formula in the pre-fuel conversion fuel consumption and usage fee calculation unit 232 of the control unit 23, based on the actual electricity usage situation of the customer's home and the selected electricity tariff system, calculate the monthly electricity usage and electricity usage fee of the electrical equipment (for example, an eco-cute).

[0031] Similarly, the post-fuel conversion fuel consumption and usage fee estimation unit 234 uses a pre-prepared calculation formula to calculate the monthly electricity and gas usage and electricity and gas usage fees when the gas equipment (for example, an eco-joze) is used in the same usage situation as the electrical equipment and can exhibit the same performance, based on the electricity usage of the electrical equipment (eco-cute), the fuel efficiency of the electrical equipment (eco-cute) and the gas equipment (eco-joze), and the selected gas tariff system. In this example, it is also possible to calculate both the case when the standard tariff system is applied and the case when the new tariff system is applied for the gas tariff, and then compare the difference in running costs described below.

[0032] In addition, the pre-combustion running cost total cost calculation unit 233 calculates the pre-combustion running cost, which is the total of the electricity usage fees for the assumed service life, based on the assumed service life and the initial cost of the electrical equipment (for example, Eco Cut), and the pre-combustion total cost, which is the sum of the pre-combustion running cost and the initial cost of the electrical equipment (for example, Eco Cut). For example, assuming the service life of the equipment is 10 years, the total cost is calculated by adding the running cost for 10 years to the initial cost.

[0033] Similarly, the post-combustion running cost total cost estimation unit 235 calculates the post-combustion running cost, which is the total of the electricity and gas usage fees for the service life (10 years), based on the initial cost of the gas equipment (for example, Eco Joze), and the post-combustion total cost, which is the sum of the post-combustion running cost and the initial cost of the gas equipment (for example, Eco Joze).

[0034] Note that in this example, the control unit 23 is equipped with a CO 2 emission calculation function unit, and calculates the pre-combustion CO 2 emissions and the post-combustion CO 2 emissions so that they can be compared.

[0035] The simulation results obtained as described above, that is, the estimation results when fuel conversion is performed by replacing the electrical equipment (for example, Eco Cut) with gas equipment (for example, Eco Joze), are summarized in an estimation result list by the list creation unit 236. The simulation information registration screen 7 switches to the estimation result display screen, and the created estimation result list is displayed together with the menu display column 70. The estimation result list is displayed on the screen in a format that can be printed on one A4 sheet, and the list can be downloaded or printed.

[0036] After obtaining the trial calculation results, the gas company 4 selects the "Simulation Registration" menu 78 from the menu display column 70 in the upper left corner of the screen in Fig. 4, for example. When saving each of the above registration items and selection items (simulation information registration items), these saving procedures (ST8) are performed. Thereby, the registration procedures for subsequent times can be omitted. Note that in this example, the trial calculation results are not saved, but the trial calculation results may also be saved together.

[0037] Fig. 5 is an explanatory diagram showing an example of a trial calculation result list. In the trial calculation result list 8, the creation date and time, the name of the gas company that is the proposer of the conversion, and the name of the customer associated with the gas company that is the proposed recipient are described. In addition, columns for the current heating and electricity costs of the "all-electric house", columns for the trial-calculated heating and electricity costs of the "gas + electricity combined house", and a comparison column for heating and electricity costs, etc. when changing from an "all-electric house" to a "gas + electricity combined house" are included.

[0038] In the column for the heating and electricity costs of the "all-electric house" showing the current situation in a customer's house that is an all-electric house (for example, using an eco-cute), the annual electricity cost, the average monthly electricity cost, the annual electricity consumption, the annual CO 2 emission amount, and the monthly electricity cost are displayed. In the column for the heating and electricity costs of the trial-calculated "gas + electricity combined house", the annual heating and electricity cost, the average monthly heating and electricity cost, the annual electricity consumption, the annual gas consumption, the annual CO 2 emission amount, the monthly electricity cost, and the monthly gas cost, etc. are displayed. In the comparison column, the annual heating and electricity cost and the average monthly heating and electricity cost when changing to a "gas + electricity combined house", and the annual reduction amount and the average monthly reduction amount of the CO 2 emission amount compared to the case of an "all-electric house" are displayed. Also, the equipment cost, the heating and electricity cost for 10 years, and the total amount thereof in the "all-electric house" are displayed in a form compared to the equipment cost, the heating and electricity cost for 10 years, and the total amount thereof in the trial-calculated "gas + electricity combined house". Also, the difference in the total amount for 10 years between the two is displayed.

[0039] In this way, in the estimated result list, the estimated values of the electricity and gas consumption, electricity and gas usage fees, post-conversion running costs, and post-conversion total costs when converting a customer's home, which is an "all-electric home", to a "gas + electricity combined home" (for example, when using an eco-JOS as a gas device instead of an eco-cute) are shown in comparison with the estimated values of the electricity consumption, electricity usage fees, pre-conversion running costs, and pre-conversion total costs in the case of an all-electric home (for example, when using an eco-cute). Also, the difference between the estimated values of both is shown. Note that the display form, display items, etc. can be in various forms and formats and are not limited to the illustrated examples.

[0040] (Other embodiments) In the above example, it is an example of the case of proposing to replace an eco-cute as an electric device with an eco-JOS, which is the corresponding gas device. The electric device may be other electric devices (for example, an electric dryer), and correspondingly, the gas device may also be a gas device other than the eco-JOS (for example, a gas dryer). Also, in the above example, it is an example of the case of replacing one electric device with one gas device, but the present invention is also applicable to the case of replacing multiple types of electric devices with their corresponding gas devices. In this case, information necessary for estimating the fuel consumption, initial cost, etc. of the electric devices and gas devices may be registered in advance.

Explanation of reference numerals

[0041] 1 Estimation system for fuel conversion support 2 System administrator 4 Gas utility 6 Communication line 7 Simulation information registration screen 8 Estimated result list 20 Estimation device for fuel conversion support 21 Input / output unit 22 Information registration unit 23 Control unit (information processing unit) 40 Utility-side device 70 Menu display column 71 Business Operator Name / Proposal Recipient Name (Customer Name) Registration Column 72 Electricity Charge Selection Registration Column 73 Electricity Consumption Registration Column 74 Combustion Equipment Selection Column 75 Gas Charge Registration Column 76 Simulation Start Button 77 Equipment Initial Cost Registration Column 78 Simulation Registration Column 211 Input Device 212 Output Device 213 Communication Unit 221 User Registration Unit 222 Electricity Charge Registration Unit 223 Gas Charge Registration Unit 224 Equipment Information Registration Unit 225 Customer Registration Unit 226 Selected Tariff System Registration Unit 231 User Authentication Unit 232 Pre-Combustion Fuel Consumption and Usage Fee Calculation Unit 233 Pre-Combustion Running Cost and Total Cost Calculation Unit 234 Post-Combustion Fuel Consumption and Usage Fee Estimation Unit 235 Post-Combustion Running Cost and Total Cost Estimation Unit 236 List Creation Unit ST1 Business Operator Name / Proposal Recipient Name Registration ST2 Electricity Charge Selection Registration ST3 Electricity Consumption Registration ST4 Gas Charge Registration ST5 Combustion Equipment Selection ST6 Equipment Cost Registration ST7 Simulation ST8 Saving of Registered Items

Claims

1. A fuel conversion support calculation device for calculating the fuel consumption and fuel cost when performing fuel conversion to replace at least one existing electrical device in a customer's home in an all-electric state with a gas device, comprising: an input / output unit, an information registration unit, an information processing unit composed of a computer, and wherein: the information processing unit: a pre-fuel conversion fuel consumption and cost calculation unit that calculates the monthly electricity consumption and electricity cost of the electrical device based on the actual electricity usage situation and electricity tariff system of the customer's home included in the input information from the input / output unit or the registration information of the information registration unit; a pre-fuel conversion running cost and total cost calculation unit that calculates the pre-fuel conversion running cost, which is the total of the electricity costs for the service life of the electrical device, and the pre-fuel conversion total cost, which is the sum of the pre-fuel conversion running cost and the initial cost of the electrical device, based on the assumed service life and initial cost of the electrical device included in the input information from the input / output unit or the registration information of the information registration unit; a post-fuel conversion fuel consumption and cost estimation unit that estimates the monthly electricity and gas consumption and electricity and gas costs of the gas device based on the electricity consumption of the electrical device, the fuel efficiency of the electrical device and the gas device, and the gas tariff system included in the input information from the input / output unit or the registration information of the information registration unit; a post-fuel conversion running cost and total cost estimation unit that estimates the post-fuel conversion running cost, which is the total of the electricity and gas costs for the service life of the gas device, and the post-fuel conversion total cost, which is the sum of the post-fuel conversion running cost and the initial cost of the gas device, based on the initial cost of the gas device included in the input information from the input / output unit or the registration information of the information registration unit; A fuel conversion support calculation device, characterized by comprising the above.

2. In the fuel conversion support calculation device according to Claim 1, the information registration unit: an electricity tariff registration unit in which a plurality of electricity tariff systems applicable to the electrical device provided by a plurality of power companies are registered; a gas tariff registration unit in which a plurality of gas tariff systems used for calculating the gas cost when using the gas device are registered; a device information registration unit in which electrical device information including the fuel efficiency, service life and initial cost of the electrical device, and gas device information including the fuel efficiency and initial cost of the gas device are registered. and includes Based on the electricity rate system selected by the input from the input / output unit, the pre-conversion fuel consumption and cost calculation unit calculates the electricity usage cost from the electricity consumption. The post-conversion fuel consumption and cost estimation unit is a fuel conversion support estimation device that calculates the gas consumption and gas usage cost based on the gas rate system selected by the input from the input / output unit. **Claim 3** In the fuel conversion support estimation device according to claim 2, The information registration unit includes a user registration unit that registers the conversion proposer as a user. The information processing unit includes a user authentication unit that permits access by the conversion proposer registered in the user registration unit. The input / output unit includes a communication unit that transmits and receives information to and from an external device. The information registration unit further Via the communication unit, a customer registration unit that associates and registers information identifying the customer from the conversion proposer whose access is permitted and information regarding the actual electricity usage situation of the customer with the conversion proposer, A selected rate system registration unit that registers the gas rate system and the electricity rate system selected by the conversion proposer via the communication unit, and includes The pre-conversion fuel consumption and cost calculation unit performs calculation processing using the selected and registered electricity rate system, and the post-conversion fuel consumption and cost estimation unit performs estimation processing using the selected and registered electricity rate system and gas rate system. The information processing unit further An output control unit that outputs the electricity consumption, the electricity usage cost, the pre-conversion running cost and the pre-conversion total cost, and the electricity / gas consumption, the electricity / gas usage cost, the post-conversion running cost and the post-conversion total cost via the input / output unit, and includes a list creation unit that generates a list to be displayed. The list describes the conversion proposer and the customer associated with the conversion proposer as the conversion proposal destination. The created list is transmitted to the conversion proposer via the communication unit, which is a fuel conversion support estimation device. **Claim 4** In the fuel conversion support estimation device according to claim 3, The electric equipment is ECOCUTE (registered trademark), and the gas equipment is ECOJOS (registered trademark), which is a fuel conversion support estimation device. **Claim 5** A fuel conversion support calculation computer program used to estimate the fuel consumption and fuel usage fees when performing fuel conversion to replace at least one existing electrical device in a fuel-requiring household in an all-electric state with a gas device. In order to cause a computer to function as the information processing unit according to claim 1, the computer is a pre-conversion fuel consumption and usage fee calculation unit that calculates the monthly electricity consumption and electricity usage fee of the electrical device based on the actual electricity usage situation and electricity tariff system of the fuel-requiring household included in the input information from the input / output unit or the registration information in the information registration unit; a pre-conversion running cost and total cost calculation unit that calculates the pre-conversion running cost, which is the total of the electricity usage fees for the service life of the electrical device, and the pre-conversion total cost, which is the sum of the pre-conversion running cost and the initial cost of the electrical device, based on the assumed service life and initial cost of the electrical device included in the input information from the input / output unit or the registration information in the information registration unit; a post-conversion fuel consumption and usage fee estimation unit that estimates the monthly electricity and gas consumption and electricity and gas usage fees of the gas device based on the electricity consumption of the electrical device, the fuel efficiency of the electrical device and the gas device included in the input information from the input / output unit or the registration information in the information registration unit, and the gas tariff system; and a post-conversion running cost and total cost estimation unit that estimates the post-conversion running cost, which is the total of the electricity and gas usage fees for the service life of the gas device, and the post-conversion total cost, which is the sum of the post-conversion running cost and the initial cost of the gas device, based on the initial cost of the gas device included in the input information from the input / output unit or the registration information in the information registration unit characterized in that it functions as such.

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