Display control device, display control method, and display control program

Abstract

To provide a display control device that can improve convenience in electricity trading. [Solution] The system includes a display control means that displays both the electricity trading price and the imbalance price in the electricity trading market on the display unit 13a. The display control means displays the electricity usage on the display unit 13a along with the electricity trading price 41a and the imbalance price 41b. The display control means displays the breakdown of electricity consumption on the display unit 13a along with the imbalance price, electricity trading price, and electricity usage. The display control means displays the remaining battery level on the display unit 13a along with the imbalance price, electricity trading price, and electricity usage.

Description

Technical Field

[0001] The present disclosure relates to a display control device, a display control method, and a display control program.

Background Art

[0002] Conventionally, information regarding the electricity market has been displayed. Patent Document 1 discloses that the surplus imbalance price unit, the deficit imbalance price unit, and the imbalance amount are graphically displayed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in Patent Document 1, it merely displays information regarding the electricity market, and there is room for improvement in terms of convenience in electricity trading and the like.

[0005] The present disclosure has been made in view of the above circumstances, and an object thereof is to provide a display control device, a display control method, and a display control program that can improve convenience in electricity trading and the like.

Means for Solving the Problems

[0006] A display control device according to an aspect of the present disclosure includes display control means for causing a display unit to display both the electricity trading price in an electricity trading market and the imbalance price.

Effects of the Invention

[0007] This disclosure provides a display control device, a display control method, and a display control program that can improve convenience in electricity trading. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic block diagram showing the system configuration of the power management system 100 related to this disclosure. [Figure 2] This is a schematic block diagram showing a specific example of the functional configuration of the display control device 10. [Figure 3] This is a schematic block diagram showing a specific example of the functional configuration of the image generation means 152. [Figure 4] This is a first example of a display screen displayed by the display control means 153. [Figure 5] This is a second example of a display screen displayed by the display control means 153. [Figure 6] This is a third example of a display screen displayed by the display control means 153. [Figure 7] This is a fourth example of a display screen displayed by the display control means 153. [Figure 8] This is a fifth example of a display screen displayed by the display control means 153. [Figure 9] This is a sixth example of a display screen displayed by the display control means 153. [Figure 10] This is the seventh example of a display screen displayed by the display control means 153. [Figure 11] This is the eighth example of a display screen displayed by the display control means 153. [Figure 12] This is the ninth example of a display screen displayed by the display control means 153. [Figure 13] This flowchart shows the display control method implemented by the display control device 10. [Figure 14] This figure shows a schematic example of the hardware configuration of the information processing device 90 applied to this embodiment. [Modes for carrying out the invention]

[0009] Hereinafter, a display control device, a display control method, and a display control program according to one embodiment of the present disclosure will be described with reference to the drawings.

[0010] (Power Management System 100) Figure 1 is a schematic block diagram showing the system configuration of the power management system 100 related to this disclosure. The power management system 100 includes a display control device 10, a trading device 20, and a control device 30. The display control device 10, the trading device 20, and the control device 30 are communicated together via a network 70. The network 70 may be a wireless communication network or a wired communication network. The network 70 may be configured using, for example, the Internet or a local area network (LAN). The network 70 may be configured by combining multiple networks.

[0011] The power management system 100 performs processing related to the Energy Management System (EMS). For example, if the target of the EMS is a single factory, the EMS can be applied to the efficient operation (e.g., optimal operation) of the factory's demand, power generation by generators, and charging and discharging of storage batteries. For example, if the target of the EMS is a power storage facility or power plant, the EMS can be applied to the efficient operation (e.g., optimal operation) of storage batteries (demand during charging, supply during discharging). For example, if the target of the EMS is a power source and consumers in a specific region, it can be applied to the efficient operation (e.g., optimal operation) of the amount of electricity demanded and supplied in that region. By implementing an Energy Management System (EMS), for example, the efficiency of each of the operations mentioned above (e.g., optimization) can be improved. As a result, it may be possible to reduce costs compared to not implementing an EMS. It may also be possible to improve the efficiency of profit and loss from electricity trading (e.g., optimization).

[0012] The power management system 100 may, for example, consider the profit and loss of power trading and the cost reduction effect on the premise of introducing a storage battery. In this case, the power management system 100 can, for example, charge the storage battery during the daytime when the power price is low, and on the other hand, discharge the power stored in the storage battery during the nighttime when the power price is high. Note that the power discharged from the storage battery may be sold in the power trading market or consumed at each facility.

[0013] The power management system 100, for example, formulates a power plan (plans such as demand volume, supply volume, power selling volume, power buying volume, etc.) for a preset combination of power sources (power supply) and demands (power demand) (hereinafter simply referred to as a combination), and based on that plan, controls, for example, the power source. The power source includes, for example, a plurality of storage batteries (the first storage battery and the second storage battery). The power source includes, for example, power generation equipment in addition to the storage battery. The power generation equipment includes, for example, waste treatment facilities, solar power generation facilities, wind power generation facilities, etc. The power management system 100 may control demand equipment (customers) that require power in addition to the power source that supplies power. The demand equipment is, for example, a facility that uses power. The demand equipment includes, for example, plants, etc. Note that the storage battery functions as a power source but also as demand equipment. That is, when the storage battery discharges, it functions as a power source, and when the storage battery charges, it can be said that it apparently uses power, so it functions as demand equipment.

[0014] Note that the user of the power management system 100 may be, for example, an operator of an EMS or a customer of the operator. The customer may be, for example, a corporation that owns power sources and demand equipment, or a corporation that manages power sources and demand equipment. The power source and the demand equipment may be provided within the same site. The power source may be a so-called on-site power generation facility.

[0015] (Trading device 20, control device 30) The trading device 20 is connected to power trading markets, such as the electricity trading market and the environmental value trading market, via the network 70. The trading device 20 conducts the buying and selling of electricity and environmental value related to each facility connected to the power grid. The trading device 20 executes transactions with the market based on trading instruction information entered by the user. Trading instruction information may be received, for example, from the display control device 10 or the control device 30. The control device 30 controls the power supply and demand equipment based on the power plan. The control device 30 and the trading device 20 may be installed at each facility, or they may be installed in common at multiple facilities. The trading device 20 and the control device 30 are configured using information devices (information processing devices) such as smartphones, tablets, personal computers, dedicated equipment, and server devices.

[0016] The control device 30, for example, devises a plan that improves the efficiency (e.g., optimization) of a predetermined objective variable in a combination. The objective variable may be, for example, profit or loss from trading or costs, or environmental impact (e.g., CO2 emissions). If the objective variable is profit or loss from trading or costs, the control device 30 devises a plan that improves the efficiency (e.g., optimization) of profit or loss from trading or costs in the entire combination. The control device 30 may have, for example, machine learning-trained artificial intelligence implemented in it, and this artificial intelligence may devise the plan.

[0017] The trading device 20 acquires electricity sales price information, electricity purchase price information, electricity demand information, and adjustment capacity information in order to plan electricity usage. The control device 30 formulates a plan based on each of these pieces of information. Each of these pieces of information may be stored in the trading device 20 or the control device 30, directly input into the trading device 20 or the control device 30, or acquired from an external source via the network 70.

[0018] The electricity selling price information is information about the selling price of electricity at each time (each unit period). The electricity buying price information is information about the buying price of electricity at each time (each unit period). The unit period for the electricity selling price information and the electricity buying price information may be, for example, 30 minutes, 1 hour, 1 day, 1 month, 10 minutes, or 1 minute. The electricity selling price information and electricity buying price information may be, for example, hourly predicted prices in the electricity market. The electricity market is a market where electricity is traded, such as the Japan Electric Power Exchange (JEPX). The electricity market may be, for example, a spot market (one-day-ahead market), a same-day market (hourly-ahead market), or a supply and demand adjustment market. Electricity prices may take into account subsidies from the national or local government. If the selling price and the buying price of electricity are equal, the selling price information and the buying price information may be combined into a single document, such as electricity price information or market price information.

[0019] Electricity demand information is information about electricity demand at each time point (each unit period). The unit period for electricity demand information may be, for example, 30 minutes, 1 hour, 1 day, 1 month, 10 minutes, or 1 minute. The electricity demand may be, for example, the electricity demand in the aforementioned combination. The electricity demand may be, for example, the actual value for any past year (e.g., last year). The electricity demand may be, for example, the average of the actual values ​​for any past few years. The electricity demand information may be, for example, the result of a software simulation. The electricity demand information may be, for example, the result of artificial intelligence generation. The electricity demand information may be, for example, input by the user.

[0020] Adjustment capacity information is information about adjustment capacity. Adjustment capacity information is, for example, information about adjustment capacity that is publicly offered in the supply and demand adjustment market. Adjustment capacity information is, for example, information about the conditions of the publicly offered adjustment capacity (e.g., period, amount of electricity, price). Examples of adjustment capacity include primary adjustment capacity, secondary adjustment capacity (secondary adjustment capacity (1), secondary adjustment capacity (2)), tertiary adjustment capacity (tertiary adjustment capacity (1), tertiary adjustment capacity (2)), etc.

[0021] Based on the information described above, the control device 30 formulates a power plan that optimizes (for example, optimizes) the objective variable. For example, if the objective variable is profit or loss from buying and selling or costs, the control device 30 formulates a plan for supply (generation), sales, and purchase of electricity that meets the electricity demand while optimizing (for example, optimizing) the profit or loss from buying and selling or costs. More specifically, the control device 30 may formulate, for example, a power generation plan by power generation equipment, an operation plan for rechargeable batteries (charge and discharge plan), a surplus electricity sales plan, and a purchase plan for insufficient electricity. If the control device 30 determines that bidding on the public offering for adjustment power will improve the efficiency (for example, optimization) of sales profits and losses and costs, it may formulate a plan based on the premise of winning the bid for adjustment power. In this case, assuming the bid for adjustment power is won, the control device 30 may formulate a plan based on the premise of activating the adjustment power, or it may formulate a plan that does not assume the activation of the adjustment power.

[0022] The control device 30 may, for example, periodically formulate a power plan. The control device 30 may, for example, formulate a power plan once a day at a predetermined time (for example, a predetermined time in the morning). In this case, the control device 30 may, for example, formulate a plan for a predetermined period including the next day (for example, the next week including the next day, the next 10 days, the next month, etc.).

[0023] The control device 30 generates information related to the formulated plan (hereinafter also referred to as plan information) and sends the plan information to the display control device 10 and the trading device 20. The control device 30 may, for example, send the plan information to the display control device 10 and the trading device 20 each time a plan is formulated. In the following, the plan formulated by the control device 30 will also be referred to as the plan formulated by the EMS.

[0024] The control device 30 controls the power supply and demand equipment based on the plan formulated by the EMS. However, if the control device 30 formulates a plan that assumes the activation of the adjustment force but the adjustment force is not activated, the control device 30 modifies the plan according to the adjustment force that was not activated, while still based on the plan formulated by the EMS, and controls the power supply and demand equipment. On the other hand, if the control device 30 formulates a plan that does not assume the activation of the adjustment force but the adjustment force is activated, the control device 30 modifies the plan according to the adjustment force that was activated, while still based on the plan formulated by the EMS, and controls the power supply and demand equipment. The control device 30 may determine whether or not the adjustment force is activated, for example, based on input from the user, or based on a signal received from an external device via the network 70 (for example, a signal indicating the presence or absence of an activation command). The control device 30 may also send information about the changed plan (hereinafter referred to as change information) to the display control device 10 or the trading device 20. Note that the change in the plan may also be carried out by the trading device 20, in which case the trading device 20 may send the change information to the display control device 10 or the control device 30.

[0025] (Display control device 10) Figure 2 is a schematic block diagram showing a specific example of the functional configuration of the display control device 10. The display control device 10 is configured using information devices (information processing devices) such as smartphones, tablets, personal computers, dedicated devices, and server devices. The display control device 10 includes a communication unit 11, an input unit 12, an output unit 13, a storage unit 14, and a control unit 15.

[0026] The communication unit 11 is a communication device. The communication unit 11 may be configured, for example, as a network interface. The communication unit 11 communicates data with other devices via the network in accordance with the control of the control unit 15. The communication unit 11 may be a wireless communication device or a wired communication device.

[0027] The input unit 12 is configured using existing input devices such as a keyboard, pointing device (mouse, tablet, etc.), buttons, or touch panel. The input unit 12 is operated by the user when inputting user instructions to the display control device 10. The input unit 12 may also be an interface for connecting the input device to the display control device 10. In this case, the input unit 12 inputs the input signal generated in response to the user's input in the input device to the trading device 20 or control device 30. The input unit 12 may also be configured using a microphone and a speech recognition device. In this case, the input unit 12 acquires the acoustic signal generated by the user's speech, performs speech recognition on the words spoken by the user, and inputs the string information of the recognition result to the display control device 10. The speech recognition processing may be performed by the control unit 15. The input unit 12 may be configured in any way that allows user instructions to be input to the display control device 10.

[0028] The output unit 13 outputs various information in a format that the user can recognize. The output unit 13 may be an image display device (display unit) such as a liquid crystal display or an organic EL (Electro-Luminescence) display. The output unit 13 may also be an interface for connecting the image display device to the display control device 10. In this case, the output unit 13 generates a video signal for displaying image data and outputs the video signal to the image display device connected to it. The output unit 13 may also be a device that outputs sound, such as a speaker. The output unit 13 may also be an interface for connecting an audio output device such as a speaker or headphones to the display control device 10. In this case, the output unit 13 generates an audio signal for playing audio data and outputs the audio signal to the audio output device connected to it. The output unit 13 may also be a printer, for example. The output unit 13 may also be an interface for connecting a printer to the display control device 10. In this case, the output unit 13 generates a print signal for printing print data and outputs the print signal to the printer connected to it. The output unit 13 may also be configured as a touch panel integrated with the input unit 12. In this embodiment, the output unit 13 is an image display device (display unit), and the output unit 13 functions as a display unit 13a.

[0029] The storage unit 14 is configured using a storage device such as a magnetic hard disk drive or a semiconductor storage device. The storage unit 14 stores data used by the control unit 15. The storage unit 14 stores data necessary when the control unit 15 performs processing.

[0030] The control unit 15 is composed of a processor such as a CPU (Central Processing Unit) and memory (main memory). The control unit 15 functions as an image source information acquisition means 151, an image generation means 152, and a display control means 153 when the processor executes a program. Furthermore, all or part of the functions of the control unit 15 may be implemented using hardware such as an ASIC (Application Specific Integrated Circuit), PLD (Programmable Logic Device), or FPGA (Field Programmable Gate Array). The above program may be recorded on a computer-readable recording medium. Computer-readable recording media include, for example, portable media such as flexible disks, magneto-optical disks, ROMs, CD-ROMs, and semiconductor memory devices (e.g., SSDs: Solid State Drives), as well as storage devices such as hard disks and semiconductor memory devices built into computer systems. The above program may also be transmitted via a telecommunications line.

[0031] The control unit 15 may execute an application installed on its own device (display control unit 10). A specific example of such an application is an application provided to the display control unit 10 as a dedicated application for the power management system 100. Another specific example of such an application is a web browser application. Such an application may be pre-installed on the display control unit 10, or it may be downloaded each time a determination process is executed. For example, if it is implemented as a web browser application, the display control unit 10 may download and execute the application from a device specified by the web server (for example, the web server itself or another server) when the display control unit 10 connects to a specific web server. The control unit 15 operates according to the program of the application being executed.

[0032] The image source information acquisition means 151 acquires the source information for the image generated by the image generation means 152. The image source information means, for example, acquires the source information for the plan from the trading device 20. The image source information means may also acquire the plan information generated by the control device 30, for example. Examples of source information for planning include electricity price information (electricity trading price, imbalance price, adjustment market price, etc.) and electricity demand information. Electricity trading price, also called spot price, includes sales price information and purchase price information. Imbalance price includes surplus imbalance price and deficit imbalance price. Other examples of source information for planning include electricity usage information, electricity volume breakdown information, battery capacity information, and imbalance profit / loss information. Electricity usage information includes spot electricity sales volume, spot electricity purchase volume, available tertiary adjustment capacity (1), available tertiary adjustment capacity (2), deficit imbalance volume, surplus imbalance volume, etc. Electricity volume breakdown information includes power generation volume from power generation facilities, demand from factories, etc., electricity wasted from power generation facilities, battery charge volume, battery discharge volume, etc. Battery capacity information includes battery capacity, etc. Imbalance profit / loss information includes imbalance profit, imbalance loss, etc. Imbalance volume information includes surplus imbalance volume, deficit imbalance volume, etc. These pieces of information may be stored in the memory unit 14 beforehand, in which case the image source information acquisition means 151 may acquire each piece of information from the memory unit 14.

[0033] Figure 3 is a schematic block diagram showing a specific example of the functional configuration of the image generation means 152. The image generation means 152 generates an image based on the information acquired by the image source information acquisition means 151. The image generation means 152 includes, for example, a power price image generation means 152a, a power usage image generation means 152b, a power quantity breakdown image generation means 152c, a battery remaining capacity image generation means 152d, an imbalance amount image generation means 152e, and an imbalance profit and loss image generation means 152f. The following describes each of these image generation means 152, along with the screen (hereinafter also referred to as the display screen) on which the specific images generated by each of these image generation means 152 are displayed.

[0034] Figure 4 shows a first example of a display screen displayed by the display control means 153. Figure 5 shows a second example of a display screen displayed by the display control means 153. Figure 6 shows a third example of a display screen displayed by the display control means 153. Figure 7 shows a fourth example of a display screen displayed by the display control means 153. Figure 8 shows a fifth example of a display screen displayed by the display control means 153. Figure 9 shows a sixth example of a display screen displayed by the display control means 153.

[0035] The electricity price image generation means 152a generates an electricity price image 41, as shown in Figure 4, based on, for example, electricity sales price information. The electricity price image 41 is an image relating to the electricity price (market price) at each time point. The electricity price image 41 is, for example, a line graph where the horizontal axis represents time and the vertical axis represents the electricity price. The electricity price image 41 may also be a bar graph, or it may be in table or list format. In the electricity price image 41, the spot price 41a and the imbalance price 41b are displayed as line graphs as electricity price information. In the electricity price image 41, the imbalance price 41b is displayed as a single line graph where the deficit imbalance price and the surplus imbalance price are the same. Alternatively, the deficit imbalance price and the surplus imbalance price may be displayed as different prices (two line graphs). The electricity price images 41 may be displayed separately for each market and region. For example, separate electricity price images 41 may be provided for the spot market, the daily market, and the supply and demand adjustment market.

[0036] The power usage image generation means 152b generates a power usage image 42, as shown in Figure 5, based on power usage information, for example. The power usage image 42 is an image relating to power usage at each time point. The power usage image 42 is, for example, a bar graph where the horizontal axis represents time and the vertical axis represents the amount of power. The power usage image 42 may also be a line graph, or it may be in table or list format. The power usage image 42 displays power usage information, including spot electricity sales 42a, spot electricity purchase 42b, deficit imbalance 42c, and surplus imbalance 42d, as bar graphs. The amount of tertiary adjustment capacity (1) and tertiary adjustment capacity (2) may also be displayed.

[0037] The power consumption breakdown image generation means 152c generates a power consumption breakdown image 43, as shown in Figure 6, based on power consumption breakdown information, for example. The power consumption breakdown image 43 is an image relating to the power consumption breakdown at each time point. The power consumption breakdown image 43 is, for example, a line graph and a bar graph where the horizontal axis represents time and the vertical axis represents power consumption. The power consumption breakdown image 43 may be a line graph only, a bar graph only, or a table or list format. Image 43 of the electricity breakdown displays the electricity breakdown information as line graphs, showing the amount of electricity generated by power generation facilities 43a, demand from factories, etc. 43b, and the baseline 43c. The baseline shows the planned value for electricity trading and serves as the reference value for imbalance. Image 43 of the electricity breakdown also displays the difference (amount of electricity generated - demand from factories, etc.) 43d as a line graph, as part of the electricity breakdown information. Additionally, the power consumption breakdown image 43 displays the amount of wasted electricity (43e), the amount of battery charge (43f), and the amount of battery discharge (43g) as bar graphs. The power consumption breakdown image 43 also displays the difference (amount of electricity generated - amount of electricity sold) (43h) as a bar graph, as part of the power consumption breakdown information. As shown in Figure 7, the electricity breakdown image 43 may also display a line graph showing the amount of electricity generated by the power generation equipment and a bar graph showing the amount of electricity wasted separately.

[0038] The battery remaining charge image generation means 152d generates a battery remaining charge image 44, as shown in Figure 8, based on battery remaining charge information, for example. The battery remaining charge image 44 is an image relating to the remaining charge of the battery. The battery remaining charge image 44 is, for example, a line graph where the horizontal axis represents time and the vertical axis represents energy. The battery remaining charge image 44 may also be a bar graph, or it may be in table or list format. In the battery level image 44, the battery level information, specifically the battery level 44a, is displayed as a line graph.

[0039] The imbalance amount image generation means 152e generates an imbalance amount image 45, as shown in Figure 9, based on the imbalance amount information, for example. Image 45 of the imbalance amount is an image related to the amount of imbalance. Image 45 of the imbalance amount is, for example, a bar graph where the horizontal axis represents time and the vertical axis represents energy. Image 45 of the imbalance amount may also be a line graph, or it may be in table or list format. The imbalance amount image 45 displays the surplus imbalance amount 45a and the deficit imbalance amount 45b as imbalance amount information. The imbalance amount image 45 may also display the planned value 45c and the actual value 45d.

[0040] The imbalance profit and loss image generation means 152f generates an imbalance profit and loss image 46, as shown in Figure 10, based on imbalance profit and loss information. The imbalance profit and loss image 46 is an image relating to imbalance profit and loss. The imbalance profit and loss image 46 is, for example, a bar graph where the horizontal axis represents time and the vertical axis represents energy consumption. The imbalance profit and loss image 46 may also be a line graph, or it may be in table or list format. Image 46 of the imbalance profit and loss shows imbalance profit 46a and imbalance loss 46b as bar graphs.

[0041] Figure 11 is a seventh example of a display screen displayed by the display control means 153. Figure 11 is an example in which four display images are displayed simultaneously on the display unit 13a. Figure 12 is an eighth example of a display screen displayed by the display control means 153. Figure 12 is an example in which three display images are displayed simultaneously on the display unit 13a.

[0042] The display control means 153 causes at least the electricity price image 41 from the above-mentioned plurality of display images to be displayed on the display unit 13a. The display control means 153 displays the electricity price image 41 on the display unit 13a, and then simultaneously displays one or more of the other display images (electricity usage image 42, electricity breakdown image 43, battery remaining charge image 44, imbalance amount image 45, and imbalance profit / loss image 46) on the display unit 13a. In addition to the electricity price image 41, all other display images may be displayed simultaneously on the display unit 13a. Alternatively, in addition to the electricity price image 41, any of the other display images may be displayed sequentially, one after another, or at any time on the display unit 13a. It is not necessary to always display the electricity price image 41 on the display unit 13a; the display image shown on the display unit 13a may be changed by scrolling the screen or other means.

[0043] As shown in Figure 11, the display unit 13a simultaneously displays the electricity price image 41, as well as the electricity usage image 42, the electricity usage breakdown image 43, and the battery remaining charge image 44. As shown in Figure 12, the display unit 13a simultaneously displays the electricity price image 41, the imbalance amount image 45, and the imbalance profit / loss image 46. When displaying two or more other display images simultaneously on the display unit 13a in addition to the electricity price image 41, the combination is arbitrary. The user may select and specify the combination of other display images to be displayed simultaneously. The display control means 153 may be equipped with machine learning-trained artificial intelligence, which may select and specify the combination of other display images to be displayed simultaneously.

[0044] (Display control method) The following describes the display control method implemented by the display control device 10. Figure 13 is a flowchart showing the display control method implemented by the display control device 10. First, in the trading device 20, planning source information such as electricity price information (imbalance price information (surplus imbalance price information, deficit imbalance price information)) and imbalance profit and loss information (imbalance profit information, imbalance loss information, etc.) is introduced and calculated (planning source information introduction step S5). Next, the image source information acquisition means 151 acquires the image source information (information acquisition step S10).

[0045] Next, the image generation means 152 generates the display image described above based on the image source information acquired by the image source information acquisition means 151 (image generation step S20). Next, the display control means 153 causes the electricity price image 41 to be displayed on the display unit 13a, as shown in Figure 4 (display control step S30).

[0046] Next, the control unit 15 receives a selection from the user for the display screen they wish to use from among the other display screens mentioned above (selection acceptance step S40). In selection acceptance step S40, it is possible to select (add) one or more of the other display screens. It is also possible to exclude (delete) one or more of the other display screens. In other words, in selection acceptance step S40, it is possible to select whether to display or hide any of the other display screens on the display unit 13a. Furthermore, in selection acceptance step S40, it may also be possible to select whether to display or hide the electricity price image 41 on the display unit 13a. Furthermore, in the selection acceptance step S40, it is also possible to select the termination of the display control method without selecting any other display screens, etc.

[0047] If one or more of the other display screens are selected in the selection acceptance step S40, the process returns to the display control step S30. Then, the display control means 153 simultaneously displays the other display images on the display unit 13a in addition to the electricity price image 41, for example, as shown in Figures 10 and 11 (display control step S30).

[0048] On the other hand, if the termination of the display control method is selected in the selection acceptance step S40, The display control method is finished. Furthermore, it is not necessary to generate all display images simultaneously in the image generation step S20. That is, in the image generation step S20, only the electricity price image 41 may be generated, and after the selection acceptance step S40, the process may return to the image generation step S20 to generate the display images selected in the selection acceptance step S40 later.

[0049] As described above, with the display control device 10 of the power management system 100 according to this embodiment, the power price image 41, etc., is displayed on the display unit 13a, so that the user can conduct transactions with the market in a timely manner. In other words, the display control device 10 can improve convenience in buying and selling electricity by displaying the power price image 41, etc., on the display unit 13a. The display control device 10 can also improve usefulness, practicality, and operability in buying and selling electricity. As a result, the user can improve the profit and loss of buying and selling electricity, or make profit and loss more efficient (for example, optimized). Therefore, it is possible to improve the efficiency of profit and loss from buying and selling electricity.

[0050] The display control device 10 includes a display control means 153 that displays both the electricity trading price and the imbalance price in the electricity trading market on the display unit 13a. Specifically, the electricity price image generation means 152a generates an electricity price image 41, and the display control means 153 displays the electricity price image 41 on the display unit 13a (see Figure 4). In the electricity price image 41, the electricity transaction price (spot price) 41a and the imbalance price 41b are clearly distinguished and visualized. The imbalance price displays the price common to both the deficit imbalance price and the surplus imbalance price simultaneously. This allows users to easily see at a glance whether they should sell or buy electricity at the spot price or the imbalance price.

[0051] Furthermore, the display control device 10 displays the electricity usage on the display unit 13a along with the electricity trading price and the imbalance price. Specifically, the electricity usage image generation means 152b generates the electricity usage image 42, and the display control means 153 displays the electricity usage image 42 on the display unit 13a (see Figures 5 and 11). This allows the user to see the electricity usage in addition to the electricity trading price and the imbalance price. In the power usage image 42, spot electricity sales 42a, spot electricity purchases 42b, deficit imbalance 42c, and surplus imbalance 42d are clearly distinguished and visualized. Therefore, users can check the breakdown and content of power usage and its correspondence with at least one of the imbalance price and the electricity trading price. Consequently, users can determine whether or not the amount of imbalance should be increased or decreased.

[0052] Furthermore, the display control means 153 displays the electricity breakdown on the display unit 13a along with the electricity trading price, imbalance price, and electricity usage. Specifically, the electricity breakdown image generation means 152c generates the electricity breakdown image 43, and the display control means 153 displays the electricity breakdown image 43 on the display unit 13a (see Figures 6, 7, and 11). This allows the user to visually check the electricity breakdown in addition to the electricity trading price, imbalance price, and electricity usage. In the electricity breakdown image 43, the amount of electricity generated by power generation facilities 43a, the demand from factories etc. 43b, the baseline 43c, and (generation amount - demand) 43d are clearly distinguished and visualized. In addition, the amount of electricity wasted 43e, the amount of electricity charged by storage batteries 43f, the amount of electricity discharged by storage batteries 43g, and (generation amount - electricity sold) 43h are clearly distinguished and visualized. As a result, users can check the correspondence between the breakdown and content of electricity and at least one of the imbalance price and the electricity trading price. Therefore, users can determine whether or not the amount of imbalance should be increased or decreased.

[0053] Furthermore, the display control means 153 displays the remaining battery level on the display unit 13a along with the electricity trading price, imbalance price, and electricity usage. Specifically, the battery level image generation means 152d generates a battery level image 44, and the display control means 153 displays the battery level image 44 on the display unit 13a (see Figures 8 and 11). This allows the user to visually check the remaining battery level in addition to the electricity trading price, imbalance price, and electricity usage. In the battery charge image 44, the battery charge 44a is clearly visualized. Therefore, the user can check the breakdown and content of the battery charge and its correspondence with at least one of the imbalance price and the electricity trading price. Thus, the user can determine whether or not to increase or decrease the amount of imbalance.

[0054] Furthermore, the display control device 10 displays the amount of imbalance on the display unit 13a along with the electricity trading price and the imbalance price. Specifically, the imbalance amount image generation means 152e generates an imbalance amount image 45, and the display control means 153 displays the imbalance amount image 45 on the display unit 13a (see Figures 9 and 12). This allows the user to visually confirm the amount of imbalance in addition to the electricity trading price and the imbalance price. In the imbalance amount image 45, the surplus imbalance amount 45a and the deficit imbalance amount 45b are clearly distinguished and visualized. Therefore, users can check the correspondence between the imbalance amount (surplus imbalance amount, deficit imbalance amount) and the imbalance price. Consequently, users can decide whether or not to increase or decrease the amount of imbalance (surplus imbalance amount, deficit imbalance amount).

[0055] Whether or not the amount of imbalance should be increased or decreased is determined as follows: In other words, if the imbalance price is higher than the spot price (electricity trading price), it indicates that the power grid is congested and there is a power shortage. In such a situation, it is necessary to avoid a deficit imbalance. Therefore, sufficient quantities should be procured from the spot market the day before, and operations should be managed so as not to exceed the planned amount on the day. In short, the amount of the deficit imbalance should decrease as the imbalance price rises and the electricity trading price falls. On the other hand, surplus imbalance is desirable because it contributes to the stabilization of the power grid. Therefore, if the imbalance price is higher than the spot price (electricity trading price), profits can be improved by reducing electricity sales on the spot market and settling the day's surplus as an imbalance. In other words, the amount of surplus imbalance should increase as the imbalance price rises and the electricity trading price falls. When the imbalance price is lower than the spot price (electricity trading price), it indicates that there is a surplus of electricity in the power grid. In such situations, the occurrence of surplus imbalance should be avoided. Therefore, electricity should be actively sold on the spot market the day before, and on the day itself, operations should be managed so as not to exceed the planned generation value. In other words, the amount of surplus imbalance should decrease as the imbalance price decreases and the electricity trading price increases. On the other hand, a power deficit is acceptable because it contributes to absorbing surplus electricity. Therefore, if the imbalance price is lower than the spot price (electricity trading price), costs can be reduced by conserving power in the spot market and procuring the deficit through imbalance. In other words, the amount of power deficit should increase as the imbalance price decreases and the electricity trading price increases.

[0056] Furthermore, the display control device 10 displays the imbalance profit and loss on the display unit 13a along with the electricity trading price and the imbalance price. Specifically, the imbalance profit and loss image generation means 152f generates an imbalance profit and loss image 46, and the display control means 153 displays the imbalance profit and loss image 46 on the display unit 13a (see Figures 10 and 12). This allows the user to visually check the imbalance profit and loss in addition to the electricity trading price and the imbalance price. In the imbalance profit / loss image 46, imbalance profits 46a and imbalance losses 46b are clearly distinguished and visualized. Therefore, users can see the correspondence between imbalance profits / losses (imbalance profits, imbalance losses) and imbalance prices. Consequently, users can determine whether or not to increase or decrease the amount of imbalance.

[0057] The display control device 10 may display on the display unit 13a, along with the electricity trading price and the imbalance price, recommendation information indicating whether or not the amount of imbalance should be increased or decreased. This allows the user to easily understand whether or not the amount of imbalance should be increased or decreased. Whether or not to increase or decrease the imbalance is determined based on the imbalance price. For example, if the surplus imbalance price is high, it indicates that the power system is under strain, and a recommendation will be displayed suggesting that the surplus imbalance should be increased and the deficit imbalance should be decreased. On the other hand, if the deficit imbalance price is low, it indicates that the power system is in a surplus state, and a recommendation will be displayed suggesting that the surplus imbalance should be decreased and the occurrence of a deficit imbalance should be tolerated. The recommended information may be displayed as text on the display unit 13a, or it may be displayed as symbols that suggest an increase or decrease. As recommended information, the color and line type of the imbalance price line graph 41b may be changed depending on whether the imbalance price is increasing or decreasing. The imbalance price line graph 41b may also be made to blink. The display control means 153 may be equipped with machine learning-trained artificial intelligence, which may be used to display the recommended information on the display unit 13a.

[0058] (Hardware configuration of each device) Figure 14 is a schematic diagram showing an example of the hardware configuration of an information processing device 90 applied to this embodiment. The information processing device 90 comprises a processor 91, main memory 92, communication interface 93, auxiliary storage device 94, input / output interface 95, and internal bus 96. The processor 91, main memory 92, communication interface 93, auxiliary storage device 94, and input / output interface 95 are connected to each other via the internal bus 96 so that they can communicate with one another. The information processing device 90 may be applied to, for example, a display control device 10, a trading device 20, and a control device 30. In this case, for example, the communication unit 11 may be configured using a communication interface 93. For example, the storage unit 14 may be configured using an auxiliary storage device 94. Furthermore, the control unit 15 may be configured using a processor 91 and a main memory device 92.

[0059] The operation of the control unit described above is stored in auxiliary storage device 94 (storage) in the form of a program. The processor 91 reads the program from the auxiliary storage device 94, loads it into the main memory device 92, and executes the above processing according to the program. The processor 91 also allocates memory areas in the main memory device 92 corresponding to each of the above-mentioned storage units according to the program. Examples of the processor 91 include a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), and a microprocessor.

[0060] The program may be for implementing a part of the functions to be performed by the information processing device 90. For example, the program may perform functions in combination with other programs already stored in the auxiliary storage device 94, or in combination with other programs implemented in other devices. In other examples of the embodiment, the information processing device 90 may include a custom LSI (Large Scale Integrated Circuit) such as a PLD (Programmable Logic Device) in addition to or instead of the above configuration. Examples of PLDs include PAL (Programmable Array Logic), GAL (Generic Array Logic), CPLD (Complex Programmable Logic Device), and FPGA (Field Programmable Gate Array). In this case, some or all of the functions implemented by the processor 91 may be implemented by the integrated circuit. Such an integrated circuit is also included as an example of a processor.

[0061] Examples of auxiliary storage devices 94 include magnetic disks, magneto-optical disks, optical disks, semiconductor memory, etc. The auxiliary storage device 94 may be an internal medium directly connected to the bus of the information processing device 90, or it may be an external medium connected to the information processing device 90 via an input / output interface 95 or a communication line. Furthermore, if this program is delivered to the information processing device 90 via a communication line, the information processing device 90 that receives the delivery may load the program into the main memory 92 and execute the above processing. In at least one embodiment, the auxiliary storage device 94 is a tangible storage medium that is not temporary.

[0062] Furthermore, the program may be intended to implement some of the functions described above. Furthermore, the program may be a so-called differential file (differential program) that implements the aforementioned functions in combination with other programs already stored in the auxiliary storage device 94.

[0063] For example, the program may be a program that causes a computer (information processing device) to function as the display control device.

[0064] The technical scope of this disclosure is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of this disclosure. For example, while the electricity trading price (spot price) and imbalance price are displayed simultaneously, they can also be displayed separately. Alternatively, other display screens can be shown instead of displaying the electricity trading price (spot price) and imbalance price. For example, while electricity usage is displayed along with electricity trading prices and imbalance prices, it is also possible to display only electricity usage, or to display either electricity trading prices or imbalance prices along with electricity usage. For example, while the electricity trading price, imbalance price, and electricity usage are displayed along with the breakdown of electricity consumption, it is also possible to display only the breakdown of electricity consumption, or to display either the electricity trading price or the imbalance price along with the breakdown of electricity consumption, or to display electricity usage along with the breakdown of electricity consumption. For example, while the remaining battery capacity is displayed along with the electricity trading price, imbalance price, and electricity usage, it is also possible to display only the remaining battery capacity, or to display either the electricity trading price or the imbalance price along with the remaining battery capacity, or to display electricity usage along with the remaining battery capacity. For example, instead of displaying the electricity trading price and imbalance price along with the deficit imbalance amount, it would also be possible to display only the deficit imbalance amount, or to display either the electricity trading price or the imbalance price along with the deficit imbalance amount. For example, while the electricity trading price and imbalance price are displayed along with the surplus imbalance amount, it is also possible to display only the surplus imbalance amount, or to display either the electricity trading price or the imbalance price along with the surplus imbalance amount. For example, while the imbalance gain / loss is displayed along with the electricity trading price and the imbalance price, it is also acceptable to display only the imbalance gain / loss, or to display either the electricity trading price or the imbalance price along with the imbalance gain / loss. Furthermore, it is not limited to displaying both the imbalance loss and the imbalance gain as the imbalance gain / loss; it is also acceptable to display only one of them. The display unit 13a is not limited to a single display, but may consist of multiple displays (multi-display). In addition to the display unit 13a, or in place of the display unit 13a, other output means such as speakers or headphones, or a printer may be used to notify the user of electricity trading prices, imbalance prices, electricity usage, etc.

[0065] Furthermore, it is possible to replace the components in the above embodiments with well-known components as appropriate, without departing from the spirit of this disclosure, and the above-described modifications may be combined as appropriate.

[0066] The display control device, display control method, and display control program according to the above embodiment can be understood, for example, as follows. (Note) <1> One aspect of this disclosure is a display control device characterized by comprising a display control means for displaying both the electricity trading price and the imbalance price of the electricity trading market on a display unit. This disclosure allows for a clear distinction and visualization of electricity trading prices (e.g., spot prices) and imbalance prices. This makes it immediately clear to users whether, for example, they are buying and selling electricity at spot prices or considering settlement at imbalance prices when selling and buying electricity.

[0067] <2> Aspect 2 of the present disclosure is characterized in that the display control means causes the electricity usage to be displayed on the display unit along with the electricity trading price and the imbalance price. <1> This is the display control device described in [reference]. This disclosure provides visibility into electricity usage, in addition to electricity trading prices and imbalance prices. This allows users to determine whether or not they should increase or decrease the amount of imbalance.

[0068] <3> Aspect 3 of the present disclosure is characterized in that the display control means causes the breakdown of electricity consumption to be displayed on the display unit along with the electricity trading price, the imbalance price, and the electricity usage. <1> or <2> This is the display control device described in [reference]. This disclosure provides visibility into electricity trading prices, imbalance prices, and electricity usage, as well as a breakdown of electricity consumption. This significantly enhances users' ability to determine whether or not they should increase or decrease their imbalance levels.

[0069] <4> Aspect 4 of the present disclosure is characterized in that the display control means causes the remaining battery level to be displayed on the display unit along with the electricity trading price, the imbalance price, and the electricity usage. <1> From <3> It is a display control device as described in any one of the following. This disclosure provides visibility into battery levels, in addition to electricity trading prices, imbalance prices, and electricity usage. This significantly enhances users' ability to determine whether or not to increase or decrease their imbalance levels.

[0070] <5> Aspect 5 of the present disclosure is characterized in that the display control means causes the display unit to display the amount of the imbalance deficit along with the electricity trading price and the imbalance price. <1> From <4> It is a display control device as described in any one of the following. This disclosure visualizes not only electricity trading prices and imbalance prices, but also the amount of imbalance deficit. This allows users to determine whether or not they should increase or decrease the amount of imbalance (amount of imbalance deficit).

[0071] <6> Aspect 6 of this disclosure is characterized in that the amount of the imbalance deficiency decreases as the imbalance price increases and the electricity trading price decreases. <1> From <4> It is a display control device as described in any one of the following. This disclosure ensures that a determination can be made as to whether or not the amount of imbalance should be increased or decreased.

[0072] <7> Aspect 7 of this disclosure is characterized in that the amount of the imbalance deficit increases as the imbalance price decreases and the electricity trading price increases. <1> From <6> It is a display control device as described in any one of the following. This disclosure ensures that a determination can be made as to whether or not the amount of imbalance should be increased or decreased.

[0073] <8> Aspect 8 of the present disclosure is characterized in that the display control means causes the surplus imbalance amount to be displayed on the display unit along with the electricity trading price and the imbalance price. <1> From <7> It is a display control device as described in any one of the following. This disclosure visualizes not only electricity trading prices and imbalance prices, but also surplus imbalance amounts. This allows users to determine whether or not they should increase or decrease the amount of imbalance (surplus imbalance).

[0074] <9> Aspect 9 of this disclosure is characterized in that the amount of surplus imbalance increases as the imbalance price increases and as the electricity trading price decreases. <1> From <8> It is a display control device as described in any one of the following. This disclosure ensures that a determination can be made as to whether or not the amount of imbalance should be increased or decreased.

[0075] <10> Aspect 10 of this disclosure is characterized in that the amount of surplus imbalance decreases as the imbalance price decreases and as the electricity trading price increases. <1> From <9> It is a display control device as described in any one of the following. This disclosure ensures that a determination can be made as to whether or not the amount of imbalance should be increased or decreased.

[0076] <11> Aspect 11 of the present disclosure is characterized in that the display control means causes the display unit to display recommendation information indicating whether or not the amount of imbalance should be increased or decreased, along with the electricity trading price and the imbalance price. <1> From <10> It is a display control device as described in any one of the following. According to this disclosure, recommendations will be displayed, making it easier for users to determine whether or not they should increase or decrease the amount of imbalance based on these recommendations.

[0077] <12> Aspect 12 of this disclosure is characterized in that the imbalance amount is either the excess imbalance amount or the deficit imbalance amount. <1> From <11> It is a display control device as described in any one of the following. This disclosure visualizes excess or deficit imbalances, allowing users to easily determine whether or not to increase or decrease the amount of imbalance based on this information.

[0078] <13> Aspect 13 of the present disclosure is characterized in that the display control means causes the imbalance profit or loss to be displayed on the display unit along with the electricity trading price and the imbalance price. <1> From <12> It is a display control device as described in any one of the following. This disclosure makes imbalance gains and losses visible, allowing users to easily determine whether or not to increase or decrease the amount of imbalance based on this information.

[0079] <14> Aspect 14 of this disclosure is characterized in that the imbalance price is a price common to both the deficit imbalance price and the surplus imbalance price. <1> From <13> It is a display control device as described in any one of the following. According to this disclosure, since the price is common to both the under-imbalance price and the surplus imbalance price, users can easily evaluate the imbalance price.

[0080] <15> Aspect 15 of this disclosure is a display control method characterized by having a display control step that displays both the electricity trading price and the imbalance price in the electricity trading market. According to this disclosure, by going through a display control step, electricity trading prices (e.g., spot prices) and imbalance prices can be clearly distinguished and visualized. This allows users to see at a glance whether they should sell or buy electricity at the spot price or the imbalance price.

[0081] <16> Aspect 16 of this disclosure describes a computer, <1> From <14> This is a program for causing a display control device to function as one of the following. According to this disclosure, a computer can be made to function as the display control device described above. [Explanation of Symbols]

[0082] 10 Display control device 13a Display section 15 Control Unit 41 Electricity price image 41a Electricity trading price 41b Imbalance Price 42 Power Usage Images 43. Image showing the breakdown of electricity consumption. 44 Battery level image 45 Imbalance Amount Image 46 Imbalance Profit / Loss Image 152 Image generation means 152a Electricity price image generation means 152b Power use image generation means 152c Power consumption breakdown image generation means 152d Battery remaining charge image generation means 152e Imbalance Amount Image Generation Means 152f Imbalance Profit / Loss Image Generation Method 153 Display control means S30 Display control step

Claims

1. An acquisition means for acquiring the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The system includes a display control means that causes the electricity trading price and the imbalance price, both acquired by the acquisition means, to be displayed on the display unit. The display control means displays the electricity trading price and the imbalance price on the display unit, aligning the respective time axes of the electricity trading price and the imbalance price. A display control device characterized by the following:

2. An acquisition means for acquiring the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The system includes a display control means that causes the electricity trading price and the imbalance price, both acquired by the acquisition means, to be displayed on the display unit. The aforementioned imbalance price is a price common to both the deficit imbalance price and the surplus imbalance price. A display control device characterized by the following:

3. An acquisition means for acquiring the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The system includes a display control means that causes the electricity trading price and the imbalance price, both acquired by the acquisition means, to be displayed on the display unit. The display control means causes the display unit to display recommendation information indicating whether or not the amount of imbalance should be increased or decreased, along with the electricity trading price and the imbalance price. A display control device characterized by the following:

4. An acquisition means for acquiring the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The system includes a display control means that causes the electricity trading price and the imbalance price, both acquired by the acquisition means, to be displayed on the display unit. The display control means causes the electricity trading price and the imbalance price to be displayed on the display unit in association with each other. A display control device characterized by the following:

5. An acquisition means for acquiring the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity, The system includes a display control means that causes the electricity trading price and the imbalance price, both acquired by the acquisition means, to be displayed on the display unit. The display control means causes the electricity trading price and the imbalance price to be displayed on the display unit in association with each other, The electricity trading price and the imbalance price are displayed on the display unit with their respective time axes aligned. A display control device characterized by the following:

6. An acquisition means for acquiring the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The system includes a display control means that causes the electricity trading price and the imbalance price, both acquired by the acquisition means, to be displayed on the display unit. The display control means causes the electricity trading price and the imbalance price to be displayed on the display unit in association with each other. The aforementioned imbalance price is a price common to both the deficit imbalance price and the surplus imbalance price. A display control device characterized by the following:

7. An acquisition means for acquiring the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The system includes a display control means that causes the electricity trading price and the imbalance price, both acquired by the acquisition means, to be displayed on the display unit. The display control means causes the display unit to display recommendation information indicating whether or not the amount of imbalance should be increased or decreased, along with the electricity trading price and the imbalance price, and The electricity trading price, the imbalance price, and the recommendation information are displayed in association with each other on the display unit. A display control device characterized by the following:

8. The display control device according to any one of claims 1 to 7, characterized in that the display control means causes the electricity usage to be displayed on the display unit along with the electricity trading price and the imbalance price.

9. The display control device according to claim 8, characterized in that the display control means causes the display unit to display the breakdown of electricity consumption along with the electricity trading price, the imbalance price, and the electricity usage.

10. The display control device according to claim 8, characterized in that the display control means causes the remaining battery level to be displayed on the display unit along with the electricity trading price, the imbalance price, and the electricity usage.

11. The display control device according to any one of claims 1 to 7, characterized in that the display control means causes the display unit to display the amount of the deficit imbalance along with the electricity trading price and the imbalance price.

12. The display control device according to claim 11, characterized in that the amount of the deficit imbalance decreases as the imbalance price increases and the electricity trading price decreases.

13. The display control device according to claim 11, characterized in that the amount of the deficit imbalance increases as the imbalance price decreases and the electricity trading price increases.

14. The display control device according to any one of claims 1, 3 to 5, or 7, characterized in that the display control means causes the surplus imbalance amount to be displayed on the display unit along with the electricity trading price and the imbalance price.

15. The display control device according to claim 14, characterized in that the amount of surplus imbalance increases as the imbalance price increases and as the electricity trading price decreases.

16. The display control device according to claim 14, characterized in that the amount of surplus imbalance decreases as the imbalance price decreases and the electricity trading price increases.

17. The display control device according to any one of claims 1, 2, 4 to 6, characterized in that the display control means causes the display unit to display recommendation information indicating whether or not the amount of imbalance should be increased or decreased, along with the electricity trading price and the imbalance price.

18. The display control device according to claim 17, characterized in that the imbalance amount is either an excess imbalance amount or an insufficient imbalance amount.

19. The display control device according to claim 3 or 7, characterized in that the imbalance amount is an excess imbalance amount or a deficit imbalance amount.

20. The display control device according to any one of claims 1 to 7, characterized in that the display control means causes the imbalance profit or loss to be displayed on the display unit along with the electricity trading price and the imbalance price.

21. The display control device according to any one of claims 1, 3 to 5, and 7, characterized in that the imbalance price is a price common to both the deficit imbalance price and the surplus imbalance price.

22. A computer acquires the electricity trading price and the imbalance price stored in a trading device that conducts the buying and selling of electricity, The computer includes a display control step that causes the computer to display both the electricity trading price and the imbalance price acquired by the acquisition step on the display unit. A display control method characterized in that, in the display control step, the computer displays the electricity trading price and the imbalance price on the display unit by aligning the respective time axes of the electricity trading price and the imbalance price.

23. A computer acquires the electricity trading price and the imbalance price stored in a trading device that conducts the buying and selling of electricity, The computer includes a display control step that causes the computer to display both the electricity trading price and the imbalance price acquired by the acquisition step on the display unit. A display control method characterized in that the imbalance price is a price common to both the insufficient imbalance price and the surplus imbalance price.

24. A computer acquires the electricity trading price and the imbalance price stored in a trading device that conducts the buying and selling of electricity, The computer includes a display control step that causes the computer to display both the electricity trading price and the imbalance price acquired by the acquisition step on the display unit. A display control method characterized in that, in the display control step, the computer causes the display unit to display recommendation information indicating whether or not the amount of imbalance should be increased or decreased, along with the electricity trading price and the imbalance price.

25. A computer acquires the electricity trading price and the imbalance price stored in a trading device that conducts the buying and selling of electricity, The computer includes a display control step that causes the computer to display both the electricity trading price and the imbalance price acquired by the acquisition step on the display unit. A display control method characterized in that, in the display control step, the computer causes the power trading price and the imbalance price to be displayed on the display unit in association with each other.

26. A computer acquires the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The computer includes a display control step that causes the computer to display both the electricity trading price and the imbalance price acquired by the acquisition step on the display unit. In the display control step, the computer displays the electricity trading price and the imbalance price in association with each other on the display unit, and A display control method characterized by displaying the electricity trading price and the imbalance price on the display unit while aligning the respective time axes of the electricity trading price and the imbalance price.

27. ​​A computer acquires the electricity trading price and the imbalance price stored in a trading device that conducts the buying and selling of electricity, The computer includes a display control step that causes the computer to display both the electricity trading price and the imbalance price acquired by the acquisition step on the display unit. In the display control step, the computer causes the power trading price and the imbalance price to be displayed on the display unit in association with each other. A display control method characterized in that the imbalance price is a price common to both the insufficient imbalance price and the surplus imbalance price.

28. A computer acquires the electricity trading price and the imbalance price of the electricity trading market, which are stored in a trading device that conducts the buying and selling of electricity. The computer includes a display control step that causes the computer to display both the electricity trading price and the imbalance price acquired by the acquisition step on the display unit. In the display control step, the computer causes the display unit to display recommendation information indicating whether or not the amount of imbalance should be increased or decreased, along with the electricity trading price and the imbalance price, and A display control method characterized by displaying the electricity trading price, the imbalance price, and the recommendation information in association with each other on the display unit.

29. A program for causing a computer to function as a display control device according to any one of claims 1 to 7.

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