Control device

Abstract

To provide a storage control device, storage control method and program, which enable selection of power generation capacity and storage battery capacity so as to achieve a high carbon neutral rate within a budget.SOLUTION: A control device is provided, comprising: determination means 10A for newly determining power generation capacity and storage battery capacity; calculation means 10B for calculating the cost of power generation and the cost of storage batteries based on the newly determined power generation capacity and storage battery capacity; computation means 10C for computing a carbon neutral rate based on expected power consumption by a facility and the newly determined power generation capacity and storage battery capacity; storage control means 10D configured to store the cost calculated by the calculation means 10B in association with the carbon neutral rate computed by the computation means 10C in a storage unit; and control means 10F configured to cause repetitive execution of determination processing by the determination means 10A, calculation processing by the calculation means 10B, computation processing by the computation means 10C, and storage control processing by the storage control means 10D.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a control device. [Background technology]

[0002] 2. Description of the Related Art Renewable energy power generation facilities such as solar cells and storage batteries for storing electrical energy generated by renewable energy power generation facilities are sometimes installed in facilities such as homes, factories, and warehouses. For example, Patent Document 1 discloses calculating an evaluation value based on the electricity self-sufficiency rate (=carbon neutral rate) for the amount of power consumption expected in a home, the sales rate of electricity generated by solar cells and stored in a storage battery, and the operating rate of the storage battery. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2019-54584 Summary of the Invention [Problem to be solved by the invention]

[0004] The technology disclosed in Patent Document 1 makes it possible to avoid increased costs due to the installation of renewable energy power generation facilities and storage batteries with excessive performance in facilities, and to avoid generating more power than necessary. If renewable energy power generation facilities and storage batteries are installed in large facilities such as factories and warehouses, it is possible to recover the initial costs of installation over the long term by buying and selling excess electricity generated. However, for facilities such as homes where the budget for installation is limited, it is necessary to achieve a higher carbon neutral rate within the budget.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a control device that can select the power generation capacity using renewable energy and the capacity of the storage battery so as to achieve a high carbon neutral rate within budget for the amount of power consumption expected in the facility. [Means for solving the problem]

[0006] <1> The control device of aspect 1 of the present invention is characterized in that it comprises a determination means for newly determining a power generation capacity by renewable energy and a storage battery capacity, a calculation means for calculating the costs of the power generation and the storage battery based on the power generation capacity newly determined by the determination means and the storage battery capacity newly determined by the determination means, a calculation means for calculating a carbon neutral rate based on the amount of power consumption expected in the facility, the power generation capacity newly determined by the determination means, and the storage battery capacity newly determined by the determination means, a memory control means for correlating the cost calculated by the calculation means with the carbon neutral rate calculated by the calculation means and storing them in a memory unit, and a control means for repeatedly executing the determination process by the determination means, the calculation process by the calculation means, the calculation process by the calculation means, and the storage control process by the memory control means.

[0007] According to the first aspect, the calculation means calculates the cost of power generation by renewable energy and the storage battery based on the power generation capacity and the storage battery capacity. The calculation means calculates the carbon neutral rate based on the power consumption amount expected in the facility, the power generation capacity, and the storage battery capacity. Then, the determination means newly determines the power generation capacity by renewable energy and the storage battery capacity to be used in the calculation process by the calculation means and the calculation process by the calculation means. As a result, by repeating the above-mentioned processes while appropriately changing the power generation capacity and storage battery capacity determined by the determination means, it is possible to select the power generation capacity using renewable energy and the storage battery capacity so as to achieve a high carbon neutral rate within the budget for the amount of power consumption expected in the facility.

[0008] In addition, the memory control means associates the cost calculated by the calculation means with the carbon neutral rate calculated by the calculation means and stores them in the memory unit.The control means then repeatedly executes the determination process by the determination means, the calculation process by the calculation means, the calculation process by the calculation means, and the memory control process by the memory control means.This makes it easier to compare calculations and calculation results based on multiple combinations of power generation capacities and storage battery capacities.Therefore, the selection of power generation capacity and storage battery capacity from renewable energy can be made more efficient.

[0009] <2> A control device according to aspect 2 of the present invention is the control device according to aspect 1, further comprising a read means for reading from the memory unit the cost calculated by the calculation means and the carbon neutral rate corresponding to the cost which is stored in the memory unit, and a display control means, wherein the control means repeatedly executes the determination process by the determination means, the calculation process by the calculation means, the calculation process by the calculation means, the storage control process by the storage control means, and the read process by the read means, and the display control means displays on the display unit the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the read means in order of highest to lowest carbon neutral rates repeatedly read out by the read means.

[0010] According to aspect 2, the readout means reads out from the memory unit the costs calculated by the calculation means and the carbon neutral rate corresponding to the calculated costs, which is stored in the memory unit. The readout process by the readout means is repeatedly executed by the control means together with the determination process by the determination means, the calculation process by the calculation means, the calculation process by the calculation means, and the storage control process by the storage control means. Then, the display control means displays on the display unit the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means, in descending order of carbon neutral rate. This makes it easier to select the capacity of power generation by renewable energy and the capacity of the storage battery, while placing importance on the carbon neutral rate.

[0011] <3> A control device according to aspect 3 of the present invention is a control device according to aspect 1 or aspect 2, further comprising an input means for inputting a target cost, and the display control means is characterized in that, among the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the read means, those costs that exceed the target cost input by the input means are not displayed on the display unit.

[0012] According to the third aspect, the input means inputs a target cost. Then, the display control means prevents the display unit from displaying, among the costs repeatedly read out by the read means and the carbon neutral rates corresponding to the costs, those whose costs exceed the target cost input by the input means. This makes it possible to more reliably select, within the budget, the power generation capacity from renewable energy and the storage battery capacity that can achieve a high carbon neutral rate for the amount of power consumption expected in the facility.

[0013] <4> A control device according to aspect 4 of the present invention is a control device according to any one of aspects 1 to 3, further comprising a designation means for designating a target carbon neutral rate, and the display control means is characterized in that, among the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the reading means, those in which the carbon neutral rate is lower than the target carbon neutral rate designated by the designation means are not displayed on the display unit.

[0014] According to aspect 4, the designation means designates a target carbon neutral rate. Then, the display control means prevents the display unit from displaying, among the costs and carbon neutral rates corresponding to the costs repeatedly read out by the readout means, those whose carbon neutral rates are lower than the target carbon neutral rate designated by the designation means. This makes it possible to more reliably determine the carbon neutral rate that can be achieved with the capacity of power generation by renewable energy and the capacity of the storage battery that can be selected within the budget.

[0015] <5> A control device according to aspect 5 of the present invention is a control device according to any one of aspects 1 to 4, further comprising an extraction means for extracting the same carbon neutral rate from the carbon neutral rates repeatedly read out by the reading means, and the display control means is characterized in that it displays on the display unit, among the multiple costs stored in the memory unit in correspondence with the carbon neutral rates extracted by the extraction means, a cost corresponding to the power generation by renewable energy and a cost corresponding to the storage battery that is lower than the others.

[0016] According to aspect 5, the extraction means extracts the same carbon neutral rate from among the carbon neutral rates repeatedly read by the read means. Then, the display control means causes the display unit to display, among the multiple costs stored in the memory unit in association with the carbon neutral rates extracted by the extraction means, a cost having a lower combined cost of power generation by renewable energy and storage batteries than the others. This makes it possible to select the capacity of power generation by renewable energy and the capacity of storage batteries so as to achieve a high carbon neutral rate at a lower cost for the amount of power consumption expected in the facility.

[0017] <6> A control device according to aspect 6 of the present invention is a control device according to any one of aspects 1 to 5, further comprising an extraction means for extracting the same carbon neutral rate from the carbon neutral rate repeatedly read out by the reading means, and the display control means is characterized in that the display unit displays, in ascending order, the costs stored in the memory unit in correspondence with the carbon neutral rate extracted by the extraction means, in ascending order of cost.

[0018] According to aspect 6, the extraction means extracts the same carbon neutral rate from among the carbon neutral rates repeatedly read by the read means. Then, the display control means causes the display unit to display, in ascending order, the multiple costs stored in the memory unit in association with the carbon neutral rates extracted by the extraction means. This makes it possible to select the power generation capacity by renewable energy and the capacity of the storage battery so that a high carbon neutral rate can be achieved at a lower cost for the amount of power consumption expected in the facility.

[0019] <7> A control device according to aspect 7 of the present invention is a control device according to any one of aspects 1 to 6, characterized in that the display control means displays on the display unit the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the reading means, arranged in increments of a predetermined value.

[0020] According to the seventh aspect, the display control means displays the costs repeatedly read out by the read means and the carbon neutral rates corresponding to the costs in a predetermined value increment on the display unit. This makes it easier to grasp the carbon neutral rate.

[0021] <8> A control device according to aspect 8 of the present invention is a control device according to any one of aspects 1 to 7, characterized in that the memory control means stores in a memory unit in correspondence with the capacity of the power generation newly determined by the determination means, the cost corresponding to the power generation calculated by the calculation means, the capacity of the storage battery newly determined by the determination means, the cost corresponding to the storage battery calculated by the calculation means, and the carbon neutral rate calculated by the calculation means.

[0022] According to the eighth aspect, the storage control means stores the power generation capacity, the power generation cost, the storage battery capacity, the storage battery cost, and the carbon neutral rate in the storage unit in association with each other. This makes it easier to manage each of the above-mentioned items by associating them with each other. Therefore, for example, it makes it easier to create a table using each of the above-mentioned items by the display control means.

[0023] <9> A control device according to a 9th aspect of the present invention is characterized in that, in the control device according to any one of the 1st to 8th aspects, it further comprises an output means for outputting a peak amount of electricity to be purchased at the facility in accordance with the power generation capacity and the capacity of the storage battery newly determined by the determination means, and a notification means for notifying the period required to recover the cost corresponding to the storage battery calculated by the calculation means based on the cost calculated by the calculation means, the cost required to purchase electricity at the facility, and the cost corresponding to the peak output by the output means.

[0024] According to the ninth aspect, the output means outputs the peak amount of electricity purchased at the facility according to the power generation capacity and the storage battery capacity. Then, the notification means notifies the period required to recover the cost of the storage battery calculated by the calculation means based on the power generation and storage battery costs calculated by the calculation means, the cost required to purchase electricity at the facility, and the cost according to the peak amount of electricity purchased output by the output means. This makes it easier to select the power generation capacity and storage battery capacity using renewable energy that can achieve a high carbon neutral rate for the amount of power consumption expected at the facility, within the budget and with an emphasis on the specified payback period.

[0025] <10> The control device of aspect 10 of the present invention is characterized in that, in the control device of any one of aspects 1 to 9, it further comprises an output means for outputting the amount of electricity to be purchased at the facility in accordance with the power generation capacity and the capacity of the storage battery newly determined by the determination means, and a notification means for notifying the period required to recover the cost corresponding to the storage battery calculated by the calculation means based on the cost calculated by the calculation means and the amount of electricity to be purchased at the facility output by the output means.

[0026] According to the tenth aspect, the output means outputs the amount of electricity to be purchased at the facility according to the capacity of the power generation and the storage battery. Then, the notification means notifies the period required to recover the cost of the storage battery calculated by the calculation means based on the cost of power generation and the storage battery calculated by the calculation means and the amount of electricity to be purchased at the facility output by the output means. This makes it easy to confirm the payback period of the initial investment according to the capacity of power generation by the selected renewable energy and the capacity of the storage battery.

[0027] <11> The control device of aspect 11 of the present invention is characterized in that it comprises a determination means for newly determining a power generation capacity by renewable energy and a storage battery capacity, a calculation means for calculating a carbon neutral rate based on the amount of power consumption expected in the facility, the power generation capacity newly determined by the determination means, and the storage battery capacity newly determined by the determination means, a memory control means for correlating the power generation capacity and the storage battery capacity newly determined by the determination means with the carbon neutral rate calculated by the calculation means and storing them in a memory unit, and a control means for repeatedly executing the determination process by the determination means, the calculation process by the calculation means, and the storage control process by the memory control means.

[0028] According to the eleventh aspect, the calculation means calculates the carbon neutral rate based on the power consumption, power generation capacity, and storage battery capacity expected in the facility. Then, the determination means newly determines the power generation capacity by renewable energy and the storage battery capacity to be used in the calculation process by the calculation means. This makes it possible to select the power generation capacity by renewable energy and the storage battery capacity so as to achieve a high carbon neutral rate within the budget for the power consumption expected in the facility.

[0029] Furthermore, the memory control means stores in the memory unit the power generation capacity and the storage battery capacity newly determined by the determination means in association with the carbon neutral rate calculated by the calculation means. Then, the control means repeatedly executes the determination process by the determination means, the calculation process by the calculation means, and the storage control process by the memory control means. This makes it easier to compare the results of calculations based on multiple combinations of power generation capacities and carbon neutral rates. Therefore, the selection of the power generation capacity and the storage battery capacity from renewable energy can be made more efficient.

[0030] <12> A control device according to aspect 12 of the present invention is the control device according to aspect 11, further comprising a read means for reading from the memory unit the power generation capacity and the capacity of the storage battery stored in the memory unit, and the corresponding carbon neutral rate which is stored in the memory unit, and a display control means, wherein the control means repeatedly executes the determination process by the determination means, the calculation process by the calculation means, the memory control process by the memory control means, and the read process by the read means, and the display control means displays on the display unit the power generation capacity and the capacity of the storage battery and the corresponding carbon neutral rates which are repeatedly read out by the read means in order of highest to lowest carbon neutral rates which are repeatedly read out by the read means.

[0031] According to aspect 12, the readout means reads out from the memory unit the power generation capacity and the capacity of the storage battery stored in the memory unit, and a carbon neutral rate corresponding to the power generation capacity and the capacity of the storage battery, which is stored in the memory unit. The readout process by the readout means is repeatedly executed by the control means together with the determination process by the determination means, the calculation process by the calculation means, and the storage control process by the storage control means. Then, the display control means displays on the display unit the power generation capacity and the carbon neutral rate corresponding to the power generation capacity repeatedly read out by the readout means, in descending order of carbon neutral rate. This makes it easier to select the power generation capacity and the storage battery capacity by renewable energy, while placing importance on the carbon neutral rate. Effect of the Invention

[0032] According to the present invention, a control device can be provided that can select the power generation capacity using renewable energy and the capacity of the storage battery so as to achieve a high carbon neutral rate within budget for the amount of power consumption expected in the facility. [Brief description of the drawings]

[0033] [Figure 1] FIG. 2 is a diagram illustrating an example of a hardware configuration of a control device according to the embodiment. [Diagram 2] FIG. 4 is a diagram illustrating an example of a functional configuration of a control unit according to the embodiment. [Diagram 3] 13 is an example of a list displayed on a display unit. [Figure 4] 1 is a flowchart of a selection process according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] Hereinafter, a control device according to an embodiment of the present invention will be described with reference to the drawings. The control device according to this embodiment is used to select the capacity of power generation by renewable energy and the capacity of the storage battery when installing a renewable energy power generation facility and a storage battery for storing electrical energy generated by the renewable energy power generation facility in a facility such as a house, a factory, a warehouse, etc. Examples of renewable energy include solar power, wind power, hydroelectric power, tidal power, geothermal power, and biomass. Hereinafter, the capacity of power generation by renewable energy is simply referred to as power generation capacity.

[0035] When selecting the power generation capacity and battery capacity for a facility, the decision is made taking into consideration, for example, the carbon neutral rate, budget, and payback period. The carbon neutral rate is the so-called electricity self-sufficiency rate. In other words, the carbon neutral rate refers to the percentage of the facility's power consumption that can be covered by the capacity of renewable energy generation. The portion of the electricity used at the facility that cannot be covered by the capacity of renewable energy generation is made up by purchasing electricity from a power generation facility at the facility. For example, if the carbon neutral rate is 80%, 20% of the electricity used at the facility will be purchased. In this embodiment, the carbon neutral rate is calculated based on, for example, the total power consumption for one year. In other words, in this embodiment, the carbon neutral rate is the ratio of the amount of power that is not purchased to the total power consumption for one year. The total power consumption for one year at the facility used to calculate the carbon neutral rate is appropriately determined, for example, based on the past performance of the facility or a simulation. The control device according to this embodiment aims to easily enable the selection of the power generation capacity and the storage battery capacity taking into consideration the above-mentioned factors.

[0036] (Control device) FIG. 1 is a diagram illustrating an example of a hardware configuration of a control device 100 according to an embodiment. The control device 100 includes a control unit 10 having a processor 10P such as a CPU (Central Processing Unit) and a memory 10M connected by a bus, and executes a control program. The control program is a program that controls the operation of each functional unit of the control device 100. The control device 100 functions as a device including the control unit 10, a user interface 20, and a storage unit 30 by executing the control program.

[0037] More specifically, in the control device 100, the processor 10P reads out the control program stored in the storage unit 30 and stores the read control program in the memory 10M. The processor 10P executes the control program stored in the memory 10M, whereby the control device 100 functions as a device including a user interface 20, a control unit 10, and a storage unit 30.

[0038] The control unit 10 includes a processor 10P and a memory 10M. The control unit 10 controls the operation of each functional unit included in the control device 100. The control unit 10 includes, for example, each unit described below, and executes each process.

[0039] The user interface 20 includes a display unit 20D and an input unit 20I. The display unit 20D displays various information. The display unit 20D includes an output device such as a CRT (Cathode Ray Tube) display, a liquid crystal display, or an organic EL (Electro-Luminescence) display. The display unit 20D may be configured as an interface that connects these output devices to the control device 100.

[0040] The input unit 20I includes input terminals such as a mouse, a keyboard, and a touch panel. The input unit 20I may be configured as an interface that connects these input terminals to the control device 100. The input unit 20I accepts input of various information to the control device 100. The various information is, for example, a target cost and a target carbon neutral rate, which will be described later.

[0041] The display unit 20D and the input unit 20I may be configured as an integrated touch panel.

[0042] The storage unit 30 is configured using a non-transitory computer-readable storage medium device such as a magnetic hard disk device or a semiconductor storage device. The storage unit 30 stores various information related to the control device 100. The storage unit 30 stores, for example, a control program in advance. The storage unit 30 also stores various information in the storage control means 10D described later.

[0043] FIG. 2 is a diagram illustrating an example of a functional configuration of the control unit 10 according to the embodiment. As shown in FIG. 2, the control unit 10 of the control device 100 includes a determination means 10A, a calculation means 10B, a calculation means 10C, a memory control means 10D, a reading means 10E, a control means 10F, an input means 10G, a designation means 10H, an extraction means 10I, an output means 10J, a notification means 10K, and a display control means 10L. The control unit 10 repeatedly performs the processes of each of the above-mentioned components, and is thus used to select the optimal combination of power generation capacity and storage battery capacity from among multiple combinations based on the cost and carbon neutral rate required for the facility.

[0044] (Means of determination) The determination means 10A performs a determination process. The determination process by the determination means 10A is a process for newly determining the capacity of power generation by renewable energy and the capacity of the storage battery. Hereinafter, a combination of the capacity of power generation and the capacity of the storage battery determined by one determination process is simply referred to as a combination of the capacity of power generation and the capacity of the storage battery. The combination of the capacity of power generation and the capacity of the storage battery is generated, for example, by arranging numerical values ​​from an upper limit value to a lower limit value set for each of the capacity of power generation and the capacity of the storage battery in increments of a predetermined value, and appropriately combining these numerical values ​​with each other. Alternatively, the combination of the capacity of power generation and the capacity of the storage battery may be generated, for example, by appropriately combining real numerical values ​​between the upper limit value and the lower limit value set for each of the capacity of power generation and the capacity of the storage battery according to an optimization algorithm. A plurality of combinations of the capacity of power generation and the capacity of the storage battery are generated by repeatedly performing the determination process. This allows the combination of power generation capacity and storage battery capacity used in the calculation processing described below to be changed as appropriate.

[0045] (calculation means) The calculation means 10B performs calculation processing. The calculation processing by the calculation means 10B is to calculate the cost, specifically, the process of calculating the cost of power generation by renewable energy and the cost of the storage battery based on the power generation capacity and the storage battery capacity newly determined by the determination means 10A. In this embodiment, when there is no distinction between the power generation cost and the storage battery cost, they may be simply referred to as costs. The cost of generating electricity from renewable energy sources includes, for example, the cost and installation cost of a renewable energy power generation facility, and the maintenance cost of the renewable energy power generation facility. The cost of the storage battery includes, for example, the cost of the storage battery, the installation cost, and the maintenance cost of the storage battery. The calculation process is repeated, so that calculations are performed based on a plurality of combinations of power generation capacities and storage battery capacities. In the calculation process, the annual profit and loss on electricity buying and selling may be calculated from the power generation capacity, the storage battery capacity, and the expected power consumption in the facility.

[0046] (Calculation method) The calculation means 10C performs a calculation process. The calculation process by the calculation means 10C is a process of calculating a carbon neutral rate based on the power consumption amount expected in the facility and the power generation capacity and the storage battery capacity newly determined by the determination means 10A. The calculation process is repeated, whereby calculations are performed based on a plurality of combinations of power generation capacities and storage battery capacities.

[0047] (Memory control means) The storage control means 10D performs a storage control process. The storage control process by the storage control means 10D is a process of storing a plurality of pieces of information in the storage unit 30 in association with each other. The plurality of pieces of information stored in the storage unit 30 are, for example, the power generation capacity and the storage battery capacity newly determined by the determination means 10A, the power generation and storage battery costs calculated by the calculation means 10B, and the carbon neutral rate calculated by the calculation means 10C. In the storage control process, the storage control means 10D stores the above-mentioned pieces of information in the storage unit 30 in association with each other. This makes it easier to perform, for example, the creation of a table using each of the above-mentioned pieces of information. By repeatedly performing the storage control process, the above-mentioned information relating to a plurality of combinations of power generation capacity and storage battery capacity is stored in the storage unit 30. This makes it easier to select an optimal combination of power generation capacity and storage battery capacity.

[0048] (Reading means) The reading means 10E performs a reading process. The reading process by the reading means 10E is a process of reading from the storage unit 30 the cost calculated by the calculation means 10B and the carbon neutral rate corresponding to the cost, which is stored in the storage unit 30. The information read from the storage unit 30 by the reading means 10E is used in the display control process described later. By repeatedly performing the read process, each of the above-mentioned information related to the multiple combinations of power generation capacity and storage battery capacity stored in the storage control process is read out.

[0049] (Control Means) The control means 10F controls the above-mentioned components. That is, the control means 10F repeatedly executes the determination process by the determination means 10A, the calculation process by the calculation means 10B, the calculation process by the calculation means 10C, the storage control process by the storage control means 10D, and the read process by the read means 10E. In particular, when repeating the decision-making process, by generating multiple combinations of power generation capacity and storage battery capacity, the control device 100 can implement an optimization algorithm such as the downhill simplex method, with the carbon neutral rate as the constraint condition and the cost as the objective function. In addition, by repeatedly performing the storage control process and the readout process, the display control means 10L can process various information to be displayed on the display unit 20D in the display control process described later. In addition, the results of each process based on a combination of multiple power generation capacities and storage battery capacities can be compared.

[0050] (Input means) The input means 10G performs input processing. The input processing by the input means 10G is processing for inputting a target cost. In other words, the input processing is processing in which the input means 10G transmits information on the target cost to the display control means 10L. The target cost is determined, for example, by a user of the control device 100 inputting the target cost to the control unit 10 via the input unit 20I. The input unit 10G appropriately converts the target cost information determined by the user in this manner and transmits it to the display control unit 10L. The target cost information transmitted to the display control unit 10L is used in the display control process described later.

[0051] (Designation means) The designation means 10H performs a designation process. The designation process by the designation means 10H is a process of designating a target carbon neutral rate. In other words, the designation process is a process in which the designation means 10H transmits information on the target carbon neutral rate to the display control means 10L. The target carbon neutral rate is determined, for example, by a user using the control device 100 inputting the target carbon neutral rate to the control unit 10 via the input unit 20I. The designation means 10H appropriately converts the information on the target carbon neutral rate thus determined by the user and transmits it to the display control means 10L. The information on the target carbon neutral rate transmitted to the display control means 10L is used in the display control process described below.

[0052] (extraction means) The extraction means 10I performs an extraction process. The extraction process by the extraction means 10I is a process of extracting the same carbon neutral rate from among the carbon neutral rates repeatedly read out by the readout means 10E. The extraction process is performed before the display control process described later.

[0053] (Output means) The output means 10J performs output processing. The output processing by the output means 10J is processing to output any one of the following information according to the power generation capacity and the storage battery capacity newly determined by the determination means 10A. That is, in the output process, for example, the peak amount of electricity purchased in the facility is output. Alternatively, in the output process, the amount of electricity purchased in the facility may be output. The peak amount of electricity purchased by a facility is the maximum 30-minute value of the electricity consumed by the facility in one year. For example, the contract fee for the facility's electricity purchase for one year is determined by the peak amount of electricity purchased by the facility. The amount of electricity purchased by the facility refers to the total amount of electricity (kWh) purchased by the facility in one year. For example, the price of electricity for one year is determined by the amount of electricity purchased by the facility. The output process is carried out before the notification process by the notification means 10K, which will be described next.

[0054] (Notification means) The notification means 10K performs a notification process. The notification process by the notification means 10K is a process of notifying the user of the period required to recover the cost of the storage battery calculated by the calculation means 10B. When the aforementioned output means 10J outputs the peak amount of electricity purchased by the facility in the output process, the notification process notifies the period required to recover the cost of the storage battery based on the power generation and storage battery costs calculated by the calculation means 10B, the cost required to purchase electricity at the facility, and the cost corresponding to the peak output by the output means 10J. When the aforementioned output means 10J outputs the amount of electricity to be purchased at the facility in the output process, in the notification process, it notifies the period required to recover the cost of the storage battery based on the costs of power generation and storage battery calculated by the calculation means 10B and the amount of electricity to be purchased at the facility. The notification process is performed before the display control process, which will be described later.

[0055] (Display control means) The display control means 10L performs a display control process. The display control process by the display control means 10L is a process of displaying various information on the display unit 20D. This allows the user of the control device 100 to visually check various information. The information displayed on the display unit 20D is, for example, the cost calculated by the calculation means 10B and the carbon neutral rate corresponding to the cost, which are read out from the storage unit 30 in the read process. In addition to this, the display control means 10L may appropriately associate and display on the display unit 20D, for example, the target cost input in the input process, the target carbon neutral rate specified in the designation process, the peak amount of electricity purchased at the facility or the amount of electricity purchased at the facility output in the output process, and the period required to recover the cost of the storage battery notified in the notification process.

[0056] FIG. 3 is an example of a list displayed on display unit 20D. In the display control process, the display control means 10L makes a list of the above-mentioned various information to be displayed on the display unit 20D. That is, for example, as shown in Fig. 3, information on the power generation capacity and storage battery capacity related to the result of the determination process, the cost related to the result of the calculation process, the annual maintenance cost and the annual profit and loss of electricity buying and selling, the carbon neutral rate related to the result of the calculation process, and the investment payback period related to the result of the notification process are made into a list and displayed on the display unit 20D. Below, several specific examples of the display control process will be described.

[0057] (First example of display control processing) The display control means 10L prevents the display unit 20D from displaying, among the costs repeatedly read out by the read means 10E and the carbon neutral rates corresponding to those costs, those that exceed the target cost input by the input means 10G. This makes it possible to more reliably select, within the budget, the power generation capacity from renewable energy and the storage battery capacity that can achieve a high carbon neutral rate for the amount of power consumption expected in the facility.

[0058] (Second example of display control processing) The display control means 10L causes the display unit 20D to display the costs repeatedly read out by the read out means 10E and the carbon neutral rates corresponding to the costs in order of the carbon neutral rates repeatedly read out by the read out means 10E. This makes it easier to select the capacity of power generation by renewable energy and the capacity of the storage battery while placing importance on the carbon neutral rate.

[0059] (Third example of display control processing) The display control means 10L prevents the display unit 20D from displaying, among the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the read means 10E, those whose carbon neutral rates are lower than the target carbon neutral rate designated by the designation means 10H. This makes it possible to more reliably determine the carbon neutral rate that can be achieved with the capacity of power generation by renewable energy and the capacity of the storage battery that can be selected within the budget.

[0060] (Fourth example of display control processing) The display control means 10L causes the display unit 20D to display, among the multiple costs stored in the memory unit 30 in association with the carbon neutral rate extracted by the extraction means 10I, the cost having a lower combined cost of power generation by renewable energy and the storage battery than the others. This makes it possible to select the capacity of power generation by renewable energy and the capacity of the storage battery so that a high carbon neutral rate can be achieved at a lower cost for the amount of power consumption expected in the facility.

[0061] (Fifth example of display control processing) The display control means 10L causes the display unit 20D to display a plurality of costs stored in the memory unit 30 in association with the carbon neutral rate extracted by the extraction means 10I, in order of lowest to highest costs stored in the memory unit 30 in association with the carbon neutral rate extracted by the extraction means 10I, thereby enabling the capacity of power generation using renewable energy and the capacity of the storage battery to be selected so as to achieve a high carbon neutral rate at lower cost for the amount of power consumption expected in the facility.

[0062] (Sixth example of display control processing) The display control means 10L causes the display unit 20D to display the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the read means 10E, arranged in increments of a predetermined value. At this time, for example, the carbon neutral rate is displayed in increments of 5% on the display unit 20D. Also, for example, the cost may be displayed in increments of 300 million yen on the display unit 20D. This makes it easier to grasp the carbon neutral rate.

[0063] (Selection process) Next, a process for selecting the power generation capacity and the storage battery capacity using the control device 100 according to this embodiment will be described. FIG. 4 is a flow chart of a selection process according to an embodiment. First, a determination process is performed to determine a new combination of power generation capacity and storage battery capacity. Next, calculation and computation processes are performed to calculate and compute the cost and carbon neutral rate. The cost and carbon neutral rate, together with the combination of the power generation capacity and the storage battery capacity, are stored in the memory unit 30 by the memory control process. The information stored in the storage unit 30 is read out by a read process and used in each process described below. The processes from the determination process to the read process are repeatedly performed by the control means 10F. The information read out by the read process is used to perform input processing, designation processing, extraction processing, output processing, and notification processing, thereby generating various types of information used in the display control process. The generated various information is displayed on the display unit 20D by the display control process. The user evaluates each of a plurality of combinations of power generation capacity and storage battery capacity using the information displayed on display unit 20D by the display control process, and selects the optimal combination. Through the above process, a number of combinations of power generation capacity and storage battery capacity are selected.

[0064] As described above, according to the control device 100 of this embodiment, the calculation means 10B calculates the costs of power generation by renewable energy and the storage battery based on the power generation capacity and the storage battery capacity. The calculation means 10C calculates the carbon neutral rate based on the power consumption amount expected in the facility, the power generation capacity, and the storage battery capacity. Then, the determination means 10A newly determines the power generation capacity by renewable energy and the storage battery capacity to be used in the calculation process by the calculation means 10B and the calculation process by the calculation means 10C described above. As a result, by repeating the above-mentioned processes while appropriately changing the power generation capacity and storage battery capacity determined by the determination means 10A, it is possible to select the power generation capacity using renewable energy and the storage battery capacity so as to achieve a high carbon neutral rate within the budget for the amount of power consumption expected in the facility.

[0065] Furthermore, the storage control means 10D associates the cost calculated by the calculation means 10B with the carbon neutral rate calculated by the calculation means 10C and stores them in the storage unit 30. Then, the control means 10F repeatedly executes the determination process by the determination means 10A, the calculation process by the calculation means 10B, the calculation process by the calculation means 10C, and the storage control process by the storage control means 10D. This makes it easier to compare the calculations and calculation results based on multiple combinations of power generation capacities and storage battery capacities. Therefore, the selection of the power generation capacity and storage battery capacity by renewable energy can be performed more efficiently.

[0066] Furthermore, the readout means 10E reads out from the storage unit 30 the costs calculated by the calculation means 10B and the carbon neutral rate corresponding to the calculated costs, which is stored in the storage unit 30. The readout process by the readout means 10E is repeatedly executed by the control means 10F together with the determination process by the determination means 10A, the calculation process by the calculation means 10B, the calculation process by the calculation means 10C, and the storage control process by the storage control means 10D. Then, the display control means 10L causes the display unit 20D to display the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means 10E in descending order of carbon neutral rate. This makes it easier to select the capacity of power generation by renewable energy and the capacity of the storage battery while placing importance on the carbon neutral rate.

[0067] Furthermore, the input means 10G inputs the target cost. Then, the display control means 10L prevents the display unit 20D from displaying, among the costs repeatedly read out by the readout means 10E and the carbon neutral rates corresponding to the costs, those whose costs exceed the target cost input by the input means 10G. This makes it possible to more reliably select, within the budget, the power generation capacity by renewable energy and the storage battery capacity that can achieve a high carbon neutral rate for the amount of power consumption expected in the facility.

[0068] Furthermore, the designation means 10H designates a target carbon neutral rate. Then, the display control means 10L prevents the display unit 20D from displaying, among the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means 10E, those whose carbon neutral rates are lower than the target carbon neutral rate designated by the designation means 10H. This makes it possible to more reliably determine the carbon neutral rate that can be achieved with the capacity of power generation by renewable energy and the capacity of the storage battery that can be selected within the budget.

[0069] Furthermore, the extraction means 10I extracts the same carbon neutral rate from among the carbon neutral rates repeatedly read out by the readout means 10E. Then, the display control means 10L causes the display unit 20D to display, among the multiple costs stored in the memory unit 30 in association with the carbon neutral rates extracted by the extraction means 10I, the cost having a lower combined cost of power generation by renewable energy and the storage battery than the others. This makes it possible to select the capacity of power generation by renewable energy and the capacity of the storage battery so as to achieve a high carbon neutral rate at a lower cost for the amount of power consumption expected in the facility.

[0070] Furthermore, the extraction means 10I extracts the same carbon neutral rate from among the carbon neutral rates repeatedly read out by the readout means 10E. Then, the display control means 10L causes the display unit 20D to display, in ascending order, the multiple costs stored in the memory unit 30 in association with the carbon neutral rates extracted by the extraction means 10I. This makes it possible to select the power generation capacity by renewable energy and the capacity of the storage battery so that a high carbon neutral rate can be achieved at a lower cost for the amount of power consumption expected in the facility.

[0071] Furthermore, the display control means 10L causes the display unit 20D to display the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means 10E, arranged in increments of a predetermined value. This makes it easier to grasp the carbon neutral rate.

[0072] Furthermore, the memory control means 10D stores the power generation capacity, power generation cost, storage battery capacity, storage battery cost, and carbon neutral rate in association with each other in the memory unit 30. This makes it easier to associate each of the above with each other and manage them. Therefore, for example, it makes it easier to create a table using each of the above by the display control means 10L.

[0073] Furthermore, the output means 10J outputs the peak amount of electricity purchased at the facility according to the power generation capacity and the storage battery capacity. Then, the notification means 10K notifies the period required to recover the cost of the storage battery calculated by the calculation means 10B based on the power generation and storage battery costs calculated by the calculation means 10B, the cost required to purchase electricity at the facility, and the cost according to the peak amount of electricity purchased output by the output means 10J. This makes it easier to select the power generation capacity and storage battery capacity using renewable energy that can achieve a high carbon neutral rate for the amount of power consumption expected at the facility, within the budget and with an emphasis on the specified investment recovery period.

[0074] Furthermore, the output means 10J outputs the amount of electricity to be purchased at the facility according to the capacity of the power generation and storage battery. Then, the notification means 10K notifies the period required to recover the cost of the storage battery calculated by the calculation means 10B based on the costs of power generation and storage battery calculated by the calculation means 10B and the amount of electricity to be purchased at the facility output by the output means 10J. This makes it easy to confirm the payback period of the initial investment according to the capacity of power generation by the selected renewable energy and the capacity of the storage battery.

[0075] Second embodiment Next, a second control device 200 according to a second embodiment of the present invention will be described. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted, with only the differences being described. The second control device 200 is the same as the control device 100 in that it functions as a device including a control unit 10, a user interface 20, and a storage unit 30 by executing a control program. The control unit 10 of the second control device 200 includes a determination means 10A, a calculation means 10C, a memory control means 10D, a reading means 10E, a control means 10F, an input means 10G, a designation means 10H, an extraction means 10I, an output means 10J, a notification means 10K, and a display control means 10L. In other words, the control unit 10 of the second control device 200 differs from the control device 100 in that it does not include the calculation means 10B. In the second embodiment, the cost of power generation by renewable energy and the storage battery is, for example, an estimated amount calculated separately by the user. That is, in the second embodiment, the cost calculated by the calculation process according to the first embodiment is input by the user to the control means 10F via the input unit 20I. The other processes are performed in the same manner as in the first embodiment. In the above respects, the second control device 200 differs from the control device 100.

[0076] As described above, according to the second control device 200 of the second embodiment, the calculation means 10C calculates the carbon neutral rate based on the power consumption, power generation capacity, and storage battery capacity expected in the facility. Then, the determination means 10A newly determines the power generation capacity by renewable energy and the storage battery capacity to be used in the calculation process by the calculation means 10C described above. This makes it possible to select the power generation capacity by renewable energy and the storage battery capacity so that a high carbon neutral rate can be achieved within the budget for the power consumption expected in the facility.

[0077] Furthermore, the memory control means 10D associates the power generation capacity and storage battery capacity newly determined by the determination means 10A with the carbon neutral rate calculated by the calculation means 10C and stores them in the memory unit 30. Then, the control means 10F repeatedly executes the determination process by the determination means 10A, the calculation process by the calculation means 10C, and the storage control process by the memory control means 10D. This makes it easier to compare the results of calculations based on multiple combinations of power generation capacity and carbon neutral rates. Therefore, the selection of the power generation capacity and storage battery capacity from renewable energy can be performed more efficiently.

[0078] Furthermore, the readout means 10E reads out from the memory unit 30 the power generation capacity and the storage battery capacity stored in the memory unit 30, and the carbon neutral rate corresponding to the power generation capacity and the storage battery capacity, which is stored in the memory unit 30. The readout process by the readout means 10E is repeatedly executed by the control means 10F together with the determination process by the determination means 10A, the calculation process by the calculation means 10C, and the storage control process by the storage control means 10D. Then, the display control means 10L causes the display unit 20D to display the power generation capacity and the carbon neutral rate corresponding to the power generation capacity repeatedly read out by the readout means 10E in descending order of carbon neutral rate. This makes it easier to select the power generation capacity and the storage battery capacity by renewable energy while placing importance on the carbon neutral rate.

[0079] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, all or part of the functions of the control device 100 may be realized using hardware such as an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field Programmable Gate Array). The program may be recorded on a computer-readable recording medium. Examples of computer-readable recording media include portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into a computer system. The program may be transmitted via a telecommunications line.

[0080] In addition, within the scope of the invention, the components in the above-described embodiments may be replaced with well-known components, and the above-described modified examples may be combined as appropriate. [Explanation of symbols]

[0081] 10 Control section 10A Determining means 10B Calculation means 10C calculation method 10D Storage control means 10E Reading means 10F Control Means 10G Input Method 10H Specifying means 10I Extraction means 10J output means 10K notification method 10L Display control means 10M Memory 10P Processor 20 User Interface 20D display 20I Input section 30 Storage section 100 Control device 200 Second control device

Claims

1. A determination means for newly determining a capacity of power generation by renewable energy and a capacity of a storage battery; a calculation means for calculating costs of the power generation and the storage battery based on the capacity of the power generation newly determined by the determination means and the capacity of the storage battery newly determined by the determination means; A calculation means for calculating a carbon neutral rate based on the amount of power consumption expected in the facility, the power generation capacity newly determined by the determination means, and the capacity of the storage battery newly determined by the determination means; A storage control means for storing the cost calculated by the calculation means and the carbon neutral rate calculated by the calculation means in a storage unit in association with each other; a control means for repeatedly executing a determination process by the determination means, a calculation process by the calculation means, a calculation process by the calculation means, and a storage control process by the storage control means; Equipped with A control device comprising:

2. A readout means for reading out from the storage unit the cost calculated by the calculation means and the carbon neutral rate corresponding to the cost, the carbon neutral rate being stored in the storage unit; A display control means; Further comprising: the control means repeatedly executes a determination process by the determination means, a calculation process by the calculation means, a calculation process by the calculation means, a storage control process by the storage control means, and a read process by the read means; The display control means displays, on a display unit, the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means in order of the carbon neutral rates repeatedly read out by the readout means. The control device according to claim 1 .

3. An input means for inputting a target cost; Further comprising: The display control means does not display on the display unit, among the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means, those costs that exceed the target cost input by the input means.

3. The control device according to claim 2.

4. A means for specifying a target carbon neutral rate; Further comprising: The display control means does not display on the display unit, among the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means, those in which the carbon neutral rate is lower than the target carbon neutral rate designated by the designation means.

3. The control device according to claim 2.

5. an extraction means for extracting the same carbon neutral rate from the carbon neutral rates repeatedly read out by the readout means; Further comprising: The display control means causes the display unit to display, among the multiple costs stored in the storage unit in association with the carbon neutral rate extracted by the extraction means, a cost having a lower total value of the cost corresponding to the power generation by the renewable energy and the cost corresponding to the storage battery than the other costs.

3. The control device according to claim 2.

6. an extraction means for extracting the same carbon neutral rate from the carbon neutral rates repeatedly read out by the readout means; Further comprising: The display control means causes the display unit to display the multiple costs stored in the storage unit in association with the carbon neutral rate extracted by the extraction means, in ascending order of the costs stored in the storage unit in association with the carbon neutral rate extracted by the extraction means.

3. The control device according to claim 2.

7. The display control means displays the costs and the carbon neutral rates corresponding to the costs repeatedly read out by the readout means on the display unit in a predetermined value increment.

3. The control device according to claim 2.

8. The storage control means stores in a storage unit, in association with the capacity of the power generation newly determined by the determination means, the cost corresponding to the power generation calculated by the calculation means, the capacity of the storage battery newly determined by the determination means, the cost corresponding to the storage battery calculated by the calculation means, and the carbon neutral rate calculated by the calculation means.

8. The control device according to claim 1, wherein the control device is a control unit.

9. an output means for outputting a peak amount of electricity purchased in the facility according to the capacity of the power generation and the capacity of the storage battery newly determined by the determination means; a notification means for notifying a period required to recover the cost corresponding to the storage battery calculated by the calculation means, based on the cost calculated by the calculation means, a cost required for purchasing electricity at the facility, and a cost corresponding to the peak output by the output means; and The control device according to any one of claims 1 to 7, further comprising:

10. an output means for outputting an amount of electricity to be purchased in the facility according to the capacity of the power generation and the capacity of the storage battery newly determined by the determination means; a notification means for notifying a period required to recover the cost corresponding to the storage battery calculated by the calculation means, based on the cost calculated by the calculation means and the amount of electricity purchased in the facility output by the output means; The control device according to any one of claims 1 to 7, further comprising:

11. A determination means for newly determining a capacity of power generation by renewable energy and a capacity of a storage battery; A calculation means for calculating a carbon neutral rate based on the amount of power consumption expected in the facility, the power generation capacity newly determined by the determination means, and the capacity of the storage battery newly determined by the determination means; a storage control means for storing in a storage unit the capacity of the power generation and the capacity of the storage battery newly determined by the determination means and the carbon neutral rate calculated by the calculation means in association with each other; a control means for repeatedly executing the determination process by the determination means, the calculation process by the calculation means, and the storage control process by the storage control means; Equipped with A control device comprising:

12. A readout means for reading out from the memory unit the capacity of the power generation and the capacity of the storage battery stored in the memory unit, and the corresponding carbon neutral rate that is stored in the memory unit; A display control means; Further comprising: the control means repeatedly executes a determination process by the determination means, a calculation process by the calculation means, a storage control process by the storage control means, and a read process by the read means; The display control means displays, on a display unit, the power generation capacity, the capacity of the storage battery, and the corresponding carbon neutral rate repeatedly read out by the readout means, in order of the carbon neutral rate repeatedly read out by the readout means. The control device according to claim 11 .

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