POWER TRADING SUPPORT DEVICE, POWER TRADING SUPPORT METHOD, AND PROGRAM

Abstract

To support an operator to determine an appropriate combination of a balancing group BG and an electric energy resource.SOLUTION: An electricity trading support device of an embodiment comprises a processing unit. By means of an attribute database associating one or more BGs with each of a plurality of electricity supply areas and associating one or more electricity plants with each of the BGs and a power generation prediction database storing therein a power generation prediction result for each of electric energy resources belonging to the electricity plants, in a registration mode, the processing unit causes a display unit to display electricity plants allowed to be associated with BGs and registers a combination of a BG and an electricity plant selected by an operator with the attribute database and, in a prediction output mode, the processing unit causes the display unit to selectively display respective items of power supply areas, BGs, and electricity plants, and integrates and displays power generation prediction results of respective electric energy resources belonging to an electricity plant associated with an item selected by the operator.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to an energy trading support device, an energy trading support method, and a program. [Background technology]

[0002] In recent years, balancing groups (hereinafter referred to as "BG") have been used as a group of businesses that settle imbalances (differences between plans and actual results) in electricity trading. There are two types of BG: power generation BGs by power generation businesses and demand BGs by consumers. In the following, when simply referred to as "BG," it refers to power generation BGs.

[0003] For example, a BG operates multiple renewable energy sources (such as solar power generators and wind power generators; hereafter also referred to as power resources or resources). Although the amount of power generated by each renewable energy source fluctuates, a BG works to simultaneously and uniformly plan the amount of power generated across the entire system, reducing the risk of imbalances.

[0004] In addition, the combination of resources associated with a BG can be changed. The operator of the aggregator aims to achieve the planned amount of simultaneous and equal amounts for each BG while managing multiple resources, and to suppress the loss of revenue due to imbalance settlement. To achieve this, the operator needs to determine the appropriate combination of BG and resources at each specified timing. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-47519 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the operator's work is diverse, including the management and control of distributed resources, the buying and selling of electricity in the electricity market, and the submission of power generation and sales plans. In addition, the operator must manage multiple resources to operate economically while suppressing the amount of imbalance. Therefore, it would be meaningful if the operator could easily determine the appropriate combination of multiple resources and resources in the BG for the above-mentioned work.

[0007] Therefore, an object of the embodiments of the present invention is to provide an energy trading support device, an energy trading support method, and a program that can support an operator in determining an appropriate combination of BGs and power resources. [Means for solving the problem]

[0008] An energy trading support device of an embodiment includes an attribute database in which one or more balancing groups are associated with each of a plurality of power areas and one or more power plants are associated with each balancing group, and an energy generation prediction database in which energy generation prediction results are stored for each power resource belonging to the power plant. In a registration mode, the device displays the power plants that can be associated with the balancing groups on a display unit, and registers a combination of the balancing group and the power plant selected by an operator in the attribute database. In a prediction output mode, the device displays each item of the power area, the balancing group, and the power plant on the display unit in a selectable manner, and accumulates and displays the energy generation prediction results for each power resource belonging to the power plant that is associated with the item selected by the operator. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram showing a schematic overview of the entire power system according to the embodiment. [Diagram 2] FIG. 2 is a diagram illustrating the contents of the attribute DB according to the embodiment. [Diagram 3]FIG. 3 is a diagram illustrating an example of a predicted output screen of the power generation amount according to the embodiment. [Figure 4] FIG. 4 is a diagram illustrating an example of a power price prediction output screen according to the embodiment. [Diagram 5] FIG. 5 is a diagram illustrating an example of an operation plan screen for a storage battery according to the embodiment. [Figure 6] FIG. 6 is a diagram illustrating an example of a screen showing a breakdown of power for each resource according to the embodiment. [Figure 7] FIG. 7 is a diagram illustrating an example of a screen showing details of wholesale destinations of electricity according to the embodiment. [Figure 8] FIG. 8 is a flowchart showing a process performed by the UI function according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an electric power system including an electric power trading support apparatus according to the present embodiment will be described with reference to the drawings.

[0011] Fig. 1 is a block diagram showing a schematic overview of an entire power system S according to an embodiment. The power system S includes a cross-regional organization for electric power transmission and reception 1, a wholesale electricity exchange 2, a user terminal 3, a cloud environment 5, a renewable energy power source 6, a generator 7, a private power generator 8, and a storage battery 9. In the following, the renewable energy power source 6, the generator 7, the private power generator 8, and the storage battery 9 may be collectively referred to as resources. In Fig. 1, the arrows indicate the main flow of information, and information may flow through parts without arrows.

[0012] The renewable energy source 6 is a power generation resource that uses renewable energy (solar power, wind power, biomass, hydroelectric power, geothermal power, etc.).

[0013] The generator 7 is a power generation resource that uses non-renewable energy (thermal power, atomic power, etc.).

[0014] The private power generator 8 is, for example, a private power generator owned by a high-voltage consumer.

[0015] The storage battery 9 is a secondary battery that can be repeatedly charged and discharged.

[0016] The Organization for Cross-regional Coordination of Transmission Operators (OCCTO) is an organization that promotes the cross-regional operation of the electric power industry. The Organization for Cross-regional Coordination of Transmission Operators (OCCTO) is an example of the Organization for Cross-regional Coordination of Transmission Operators (OCCTO). The Organization for Cross-regional Coordination of Transmission Operators (OCCTO) monitors the supply and demand of electricity for each business operator.

[0017] The wholesale electricity exchange 2 is a place where registered member businesses trade electricity, and is, for example, the Japan Electric Power Exchange (JEPX) or a supply and demand adjustment market.

[0018] The user terminal 3 is an information processing device operated by an operator of an aggregator that adjusts the supply and demand balance of the power system on a BG basis or the like, and is, for example, a PC (Personal Computer), a smartphone, a tablet terminal, etc. The user terminal 3 includes a display unit 31 and an energy trading application 32.

[0019] The display unit 31 is a means for displaying information, and is, for example, an LCD (Liquid Crystal Display), a touch panel, or the like.

[0020] The energy trading application 32 is application software for connecting to and communicating with the cloud environment 5 and the wholesale energy exchange 2 to perform information processing for various transactions and the like.

[0021] The cloud environment 5 is an environment that provides various services (functions) by cloud computing, and includes a renewable energy BG prediction function 51, a renewable energy BG market cooperation function 52, a UI (User Interface) function 53 (electricity trading support device), and a resource cooperation I / F 54. Note that, for convenience of explanation, the functions 51 to 53 are described separately, but two or more of them may be configured as an integrated unit.

[0022] An operator can use all the functions in the cloud environment 5 by logging in to the cloud environment 5 from a browser on the user terminal 3 .

[0023] The renewable energy BG prediction function 51 is a function for predicting power generation of renewable energy power sources 6, and includes prediction data 511, a PV (Photovoltaic: solar power generator) power generation prediction unit 512, a wind power generation prediction unit 513, a spot price prediction unit 514, an advance market price prediction unit 515, simulation data 516, a trading strategy processing unit 517, a battery planning unit 518, and time-series actual data 519.

[0024] The predicted data 511 stores the predicted data by each of the units 512-515.

[0025] The PV power generation prediction unit 512 predicts the amount of power generated by PV among the renewable energy power sources 6.

[0026] The wind power generation prediction unit 513 predicts the amount of power generated by the wind power generator out of the renewable energy power source 6.

[0027] The spot price prediction unit 514 predicts the electricity price in the spot market among the electricity transactions at the wholesale electricity exchange 2.

[0028] The hourly market price prediction unit 515 predicts the electricity price in the hourly market among the electricity transactions in the wholesale electricity exchange 2.

[0029] The simulation data 516 stores data created by the trading strategy processing unit 517 and the battery planning unit 518.

[0030] A trading strategy processing unit 517 uses the forecast data stored in the forecast data 511 and the performance data stored in the time-series performance data 519 to simulate a strategy for electricity trading with a predetermined algorithm.

[0031] The storage battery planning unit 518 creates a plan for charging and discharging the storage battery 9.

[0032] The time-series performance data 519 stores the time-series performance data acquired from the resource.

[0033] The renewable energy BG market collaboration function 52 is a function that performs market collaboration for renewable energy BG, and includes forecast data 521, time-series actual data 522, resource data 523, a plan registration unit 524, a control plan creation unit 525, a transaction processing unit 526, and a settlement processing unit 527.

[0034] The predicted data 521 stores the predicted data obtained from the predicted data 511 .

[0035] The time-series performance data 522 stores the time-series performance data acquired from the time-series performance data 519 .

[0036] The resource data 523 stores various information regarding resources, such as locations, specifications, variables, parameters, and other setting values.

[0037] The plan registration unit 524 registers plans related to power acquired from the cross-regional organization for electric power transmission 1.

[0038] A control plan creation unit 525 creates a resource control plan based on the forecast data 521, the time-series performance data 522, the resource data 523, and the data in the plan registration unit 524, and transmits the control plan to the resource.

[0039] The trading processing unit 526 performs electricity trading processing in response to access from the energy trading application 32 of the user terminal 3.

[0040] The settlement processing unit 527 performs electricity settlement processing in response to access from the energy trading application 32 of the user terminal 3.

[0041] The UI function 53 is a function that assists the operator of the aggregator in determining an appropriate combination of BG and power resources, and includes an attribute DB (Data Base) 531, a power generation amount prediction DB 532, an acquisition unit 533, and a processing unit 534.

[0042] In the attribute DB 531, one or more BGs are associated with each of a plurality of power areas, and one or more power plants are associated with each BG. Here, Fig. 2 is a diagram showing the contents of the attribute DB 531 according to the embodiment.

[0043] 2, the attribute DB 531 has a five-level hierarchical structure. First, there is an aggregator in the first level. One or more power areas in the second level are associated with the aggregator. One or more BGs in the third level are associated with each power area.

[0044] Also, one or more power plants in the fourth hierarchical level are associated with each BG. In this case, within the power area, a power plant can be made to belong to any BG. Furthermore, multiple BGs can be set within a power area, making management possible on a BG-by-BG basis. One or more resources in the fifth hierarchical level are associated with each power plant.

[0045] Furthermore, in the attribute DB 531, design values ​​and locations of each resource in the system are set. Resources are also managed on a power plant basis. By managing multiple resources on a power plant basis, it is possible to create an operation plan for the storage battery 9 limited to that power plant. For example, it is possible to plan and control the charging of the storage battery 9 based only on the amount of renewable energy generated within the power plant, and to plan and control the discharging of the storage battery 9 within the authorized output of the entire power plant.

[0046] Furthermore, even geographically distant resources may be virtually associated with one power plant. Normally, multiple resources that are geographically close are bundled together to form one virtual power plant, but in this embodiment, by using a cloud environment, it is possible to associate distant resources as belonging to the same power plant. Although such an operation is not actually possible under the current system, this function is useful when it becomes possible under the system and it is desirable to associate distant resources (for example, when the so-called smoothing effect of power generation is likely to be more effective).

[0047] In this way, all resources are managed by one aggregator. Recording and forecasting of actual power generation values ​​are performed on a resource-by-resource basis, and the actual and forecasted power generation values ​​of the resources under a specified power plant, BG, or power area can be accumulated, visualized, and presented to the user (details will be described later).

[0048] Returning to FIG. 1, the power generation amount prediction DB 532 is data similar to the prediction data 511, and stores the power generation amount prediction result for each resource.

[0049] The acquisition unit 533 acquires various input data such as search conditions from the user terminal 3 .

[0050] The processing unit 534 executes various information processes. For example, in a registration mode, the processing unit 534 causes the display unit 31 of the user terminal 3 to display power plants that can be associated with BGs, and registers in the attribute DB 531 a combination of a BG and a power plant selected by an operator.

[0051] In addition, in the prediction output mode, the processing unit 534 causes the display unit 31 of the user terminal 3 to display each of the items of the power area, BG, and power plant in a selectable manner, and accumulates and displays the power generation prediction results for each power resource belonging to the power plant associated with the item selected by the operator. This will be described with reference to FIG.

[0052] 3 is a diagram showing an example of a power generation amount prediction output screen according to an embodiment. A search condition selection screen is displayed in an area R1. A BG list is displayed as a search condition in an area R2. A power plant list is displayed as a search condition in an area R3.

[0053] Area R4 displays the total value of the power generation forecast results for each power resource belonging to the power plant associated with the item (power area, BG, power plant) selected by the operator, and the total value of the actual power generation results. The bar graph shows the total value of the actual power generation results. Graphs P1 to P5 show the respective forecast results using five different current day forecast models for predicting power generation. Graphs Q1 to Q5 show the respective forecast results using five different day-ahead forecast models for predicting power generation.

[0054] In the case of renewable energy sources 6, the amount of power generated depends on the weather, etc., so the forecast values ​​have uncertainty. For that reason, on this screen, multiple forecast results obtained using various forecasting methods (here, five forecasting methods) based on weather forecasts, etc. are shown as lines.

[0055] For example, if the operator selects "entire power area" in area R2, the resources associated with all power areas, i.e., the total of the predicted power generation results and the total of the actual power generation values ​​for all resources, are displayed in area R4.

[0056] Also, for example, when the operator selects "Area A" in area R2, the total value of the predicted power generation amount results and the total value of the actual power generation amount values ​​of the resources associated with power area A are displayed in area R4.

[0057] Also, for example, when the operator selects "Power Plant A" in area R3, the total value of the predicted power generation amount results and the total value of the actual power generation amount values ​​of the resources associated with power plant A are displayed in area R4.

[0058] Although not directly shown in Fig. 3, individual BGs may be displayed in a selectable manner, and the total value of the predicted power generation amount results and the total value of the actual power generation amount values ​​of the resources associated with the selected BG may be displayed in the region R4. In that case, for example, when one of the power areas in the region R2 is selected, the BGs under the power area may be displayed and made selectable.

[0059] By looking at such a screen, operators can make decisions on future electricity market trading bid amounts while taking into consideration the range of uncertainty about future power generation from actual power generation values ​​and multiple future forecast values.In addition, the forecast results of both the current day forecast model and the day-ahead forecast model are displayed, and since the shorter the forecast lead time, the higher the forecast accuracy is generally, operators can intuitively understand the direction of change between the day-ahead and current day forecasts (whether the power generation forecast has increased or decreased).

[0060] In addition, when the processing unit 534 displays power plants that can be associated with BGs on the display unit 31 of the user terminal 3 in the registration mode, it may be configured to display, for each BG, only the power resources that exist in the power area that includes the location of the BG.

[0061] In addition, in the registration mode, the processing unit 534 may display power resources that can be associated with the power plant on the display unit 31 of the user terminal 3, and register the combination of the power plant and power resource selected by the operator in the attribute DB 531.

[0062] Furthermore, in the prediction output mode, the processing unit 534 may display selection buttons for the power area, BG, and power plant side by side on one screen of the display unit 31 of the user terminal 3.

[0063] Returning to FIG. 1, the resource cooperation I / F 54 is an interface function that cooperates with each resource. For example, it is as follows. (1) Function to issue control commands to resources (2) CSV (Comma Separated Value) file upload function (3) API (Application Program Interface) function for data registration (4) PV monitoring function (5) Linking function with other power monitoring systems (not shown) (6) Battery linkage function (7) OpenADR (automatic demand response) function (8) Individual resource linking function

[0064] 1, a system or service function may be provided between the resource cooperation I / F 54 and the resource. For example, a negawatt system may be provided between the resource cooperation I / F 54 and the private power generator 8. For example, a battery VPP (Virtual Power Plant) service function may be provided between the resource cooperation I / F 54 and the storage battery 9.

[0065] In this way, the resource collaboration I / F 54 enables collaboration with multiple types of resources.

[0066] Other examples of the display screen will be described below with reference to Fig. 4 to Fig. 7. Fig. 4 is a diagram showing an example of a power price prediction output screen in the embodiment. A user can check price prediction information in the power market by looking at this screen. A search condition selection screen is displayed in an area R11.

[0067] Area R12 displays price prediction information and actual price information in graphs for a specified area or the nationwide area. Graph SR shows the actual spot market price. Graph SP shows the spot market price forecast. Graph TR shows the actual market price ahead. Graph TP shows the forecast market price ahead. Area R13 displays price prediction information and actual price information in numerical form.

[0068] In the electricity market, spot markets and hourly markets have been established, and operators must predict the prices in multiple markets before deciding on the amount and price to bid into the market.By looking at the screen in Fig. 4, operators can simultaneously grasp the performance and prices of multiple markets, enabling them to make accurate and prompt decisions on the amount and price to bid into the market.

[0069] 5 is a diagram showing an example of an operation plan screen for the storage battery 9 according to the embodiment. A search condition selection screen is displayed in an area R21. A storage battery list screen is displayed in an area R22.

[0070] Region R23 displays a charge and discharge plan for the storage battery 9. Graph G1 indicates the SoC (State of charge). Graph G2 indicates the discharge plan. Graph G3 indicates the charge plan.

[0071] Area R24 displays the imbalance amount (bar graph) and the system price (line graph). Area R25 displays the charging amount plan and the actual charging amount.

[0072] Area R26 displays detailed battery information, such as the BG name, power plant name, battery name, and battery operation mode.

[0073] The operator can display an operation plan for the storage battery 9 as shown in FIG. 5 according to the constraints of the operation plan for the storage battery 9 and check the actual charge / discharge status and SoC of the storage battery 9.

[0074] 6 is a diagram illustrating an example of a screen showing a breakdown of power for each resource according to the embodiment. A search condition selection screen is displayed in an area R31. A BG list screen is displayed in an area R32.

[0075] Area R33 displays a breakdown of electricity by resource (e.g., biomass, hydroelectric, wind, PV, batteries, market procurement, etc.).

[0076] Area R34 displays the imbalance amount (bar graph) and the system price (line graph). Area R35 displays the planned, actual and imbalance figures.

[0077] Area R36 displays a list of power plants and their operating status.

[0078] By looking at a screen like the one shown in Figure 6, operators can easily understand the breakdown of power resources and use this information in their work.

[0079] In the region R33 in FIG. 6, the portion after the present time may be displayed in a lighter color, so that the past and future portions can be distinguished at a glance.

[0080] 7 is a diagram showing an example of a screen showing the breakdown of wholesale destinations of electricity in the embodiment. This screen is used by the operator to decide the amount of bid to put on the market and to actually place a bid on the market. By operating the operation button for "Post-bid plan" in the upper left, the electricity generation source and the type of wholesale destination (bar graph) are displayed in the case where the bidded power generation amount is provisionally agreed upon.

[0081] More specifically, for example, in the electricity wholesale destination breakdown display mode, the processing unit 534 causes the display unit 41 to display an operation button for "post-bid plan," and when the operation button is operated by the operator, the amount of electricity for each electricity wholesale destination, in the case where the amount of electricity already bid for sale is hypothetically agreed upon, is displayed in different colors, patterns, or the like so as to be easily identifiable to the operator.

[0082] By looking at a screen like the one in Figure 7, the operator can easily grasp the amount of electricity for each wholesale destination, and can utilize it in each task. For example, if a power generation plan is created based on the predicted power generation amount the day before the transaction, and it turns out on the day of the transaction that the amount of power generation is lower than the previous day's forecast, the operator performs an operation to change the planned amount of power sales. Here, by displaying the power sales to JEPX as a wholesale destination and the power sales by bilateral transactions in a way that makes it easy to distinguish at a glance, the operator can easily adjust the amount of power sales to JEPX while maintaining the power sales by bilateral transactions when the amount of power generation is lower than the previous plan. It is assumed that a penalty is set for bilateral transactions when the amount of power sales specified in the contract cannot be achieved, while in market transactions, the revenue from power sales only decreases according to the decrease in the amount of power sales, and it is considered that the operator mainly adjusts only the market transactions. Therefore, by facilitating such operations, the burden on the operator can be reduced.

[0083] Next, a process for displaying the screen of Fig. 3 will be described with reference to Fig. 8. Fig. 8 is a flowchart showing a process by the UI function 53 of the embodiment.

[0084] First, in step S1, the acquisition unit 533 acquires input attribute information from the user terminal 3 (information on the combination of each item in FIG. 2).

[0085] Next, in step S2, the acquisition unit 533 registers in the attribute DB 531 the attribute information acquired in step S1.

[0086] Next, in step S3, the search conditions input from the user terminal 3 (for example, "area A", "BG1", "power plant A", etc.) are acquired.

[0087] Next, in step S4, the processing unit 534 identifies a resource corresponding to the search condition input in step S3 (a resource subordinate to the search condition).

[0088] Next, in step S5, the processing unit 534 integrates the results of the power generation amount prediction of the resource identified in step S4.

[0089] Next, in step S6, the processing unit 534 causes the display unit 31 of the user terminal 3 to display the information obtained through the processing in step S5 (area R4 in FIG. 3).

[0090] Next, in step S7, the processing unit 534 determines whether new search conditions (for example, "Area A", "BG1", "Power Plant A", etc.) have been acquired from the user terminal 3, and if Yes, the process returns to step S4, and if No, the process proceeds to step S8. In other words, when the search conditions are changed, the screen display in area R4 in Fig. 3 is switched, and a graph display according to the latest search conditions is displayed.

[0091] In step S8, the processing unit 534 determines whether or not a display end operation has been performed on the user terminal 3, and if Yes, the process proceeds to step S9 to end the display, and if No, the process returns to step S7.

[0092] In this manner, according to the UI function 53 of the cloud environment 5 of this embodiment, as shown in FIG. 3, the power generation prediction results of the relevant resources are accumulated according to the search conditions and displayed, thereby assisting the operator in determining an appropriate combination of BG and resources.

[0093] Furthermore, in the registration mode, if only resources that exist in the power area that includes the location of each BG are displayed, the operability for the operator can be further improved.

[0094] Furthermore, in the registration mode, if it is possible to virtually associate geographically separated resources with a single power plant, the operation of the resources can be planned and controlled as if they were resources within a single power plant.

[0095] Furthermore, in the forecast output mode, if selection buttons for the power area, BG, and power plant are displayed side by side on one screen, the operability for the operator can be further improved.

[0096] Moreover, by displaying the screens shown in Figs. 4 to 7, the operator's work can be supported.

[0097] The program executed by the UI function 53 of this embodiment may be provided by being recorded in a computer-readable recording medium such as a CD-ROM, a flexible disk (FD), a CD-R, or a digital versatile disk (DVD) in the form of an installable or executable file.

[0098] The program may be stored on a computer connected to a network such as the Internet and provided by being downloaded via the network. The program may be provided or distributed via a network such as the Internet.

[0099] The program may also be provided in a state where it is pre-installed in a ROM or the like.

[0100] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0101] 1...Cross-regional Organization for Electric Power Generation, 2...Wholesale Electric Power Exchange, 3...User terminal, 5...Cloud environment, 6...Renewable energy power source, 7...Generator, 8...Private generator, 9...Storage battery, 31...Display unit, 32...Electricity trading application, 51...Renewable energy BG prediction function, 52...Renewable energy BG market cooperation function, 53...Acquisition unit, 54...Resource cooperation I / F, 511...Prediction data, 512...PV power generation prediction unit, 513...Wind power generation prediction unit, 514...Spot price prediction unit, 515...Time Previous market price prediction unit, 516...simulation data, 517...transaction strategy processing unit, 518...battery planning unit, 519...time series actual data, 521...prediction data, 522...time series actual data, 523...resource data, 524...plan registration unit, 525...control plan creation unit, 526...transaction processing unit, 527...settlement processing unit, 531...attribute DB, 532...power generation prediction DB, 533...acquisition unit, 534...processing unit, S...power system

Claims

1. an attribute database in which one or more balancing groups are associated with each of a plurality of power areas, and one or more power plants are associated with each of the balancing groups; a power generation amount prediction database that stores a power generation amount prediction result for each power resource belonging to the power plant; Using In a registration mode, the power plants that can be associated with the balancing groups are displayed on a display unit, and a combination of the balancing group and the power plant selected by an operator is registered in the attribute database; An energy trading support device comprising: a processing unit that, in a prediction output mode, causes the display unit to selectably display each item of the power area, the balancing group, and the power plant, and accumulates and displays the power generation prediction result for each power resource belonging to the power plant associated with the item selected by the operator.

2. The processing unit includes:

2. The energy trading support device according to claim 1, wherein in the registration mode, when the display unit is caused to display the power plants that can be associated with the balancing groups, for each balancing group, only the power resources that exist in the power area that includes the location of the balancing group are displayed.

3. The processing unit includes:

2. The energy trading support device according to claim 1, wherein in the registration mode, the display unit displays the power resources that can be associated with the power plants, and a combination of the power plants and the power resources selected by the operator is registered in the attribute database.

4. The processing unit includes:

2. The energy trading supporting apparatus according to claim 1, wherein in the prediction output mode, selection buttons for the power area, the balancing group, and the power plant are displayed side by side on one screen of the display unit.

5. The processing unit includes:

2. The energy trading support device according to claim 1, wherein in an energy wholesale destination breakdown display mode, an operation button for a post-bid plan is displayed on the display unit, and when the operation button is operated by the operator, the amount of energy already bid for electricity sale is hypothetically contracted and is identifiably displayed for each energy wholesale destination.

6. an attribute database in which one or more balancing groups are associated with each of a plurality of power areas, and one or more power plants are associated with each of the balancing groups; a power generation amount prediction database that stores a power generation amount prediction result for each power resource belonging to the power plant; A method for supporting energy trading using In a registration mode, displaying the power plants that can be associated with the balancing group on a display unit, and registering a combination of the balancing group and the power plant selected by an operator in the attribute database; and in a prediction output mode, causing the display unit to selectably display each of the items, namely, the power area, the balancing group, and the power plant, and accumulating and displaying a power generation prediction result for each of the power resources belonging to the power plant associated with the item selected by the operator.

7. an attribute database in which one or more balancing groups are associated with each of a plurality of power areas, and one or more power plants are associated with each of the balancing groups; a power generation amount prediction database that stores a power generation amount prediction result for each power resource belonging to the power plant; Using the above, the computer In a registration mode, the power plants that can be associated with the balancing groups are displayed on a display unit, and a combination of the balancing group and the power plant selected by an operator is registered in the attribute database; A program for causing the display unit to function as a processing unit that, in a prediction output mode, causes each item of the power area, the balancing group, and the power plant to be selectable, and accumulates and displays the power generation prediction results for each power resource belonging to the power plant that is associated with the item selected by the operator.

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