JP2020067919A - Bid support system - Google Patents

Abstract

To provide a bid support system for a supply and demand adjustment market.SOLUTION: The bid support system includes: a power demand prediction unit that predicts the power demand in an area under own control; a supply capacity management part that manages the supply capacity of the area; a system operation information prediction part that predicts the available capacity of each interconnection line; and a transaction price prediction part that predicts the transaction price of the supply and demand adjustment market on the basis of the electricity demand predicted by the power demand prediction unit, the supply capacity managed by the supply capacity management part, and the available capacity that is predicted by the system operation information prediction section.SELECTED DRAWING: Figure 1

Description

  The present invention is suitable for application to, for example, a bid support system.

  In Japan, the electric power system reform is in progress, and the final stage is the separation of electric power from ships. As a result, the electric power transmission and distribution business of the general electric utility (electric power system operator), which has conventionally supplied electric power in the vertically integrated business form, is separated from the power generation and retail business (delivery and electric power separation). The power transmission and distribution business will be carried out by the general power transmission and distribution business, and the power generation and retail business will be carried out by the power generation business, the retail electric power business, or a power generation and retail business that integrates both.

  In addition, a supply and demand adjustment market will be created in order to adjust the supply and demand balance and reduce the procurement cost of the adjustment power required for frequency control, and to promote power interchange over a wide area in accordance with the separation of power transmission. In this supply and demand adjustment market, the short-term supply and demand adjustment capacity is traded through the market. The power generation company sells the adjustment power (adjusted power supply) to the market and bids, and the general transmission and distribution company buys and sells the market. By doing so, you are trading in the market.

  Here, since the adjustment power is used for supply and demand balance adjustment and frequency control after gate close (GC), the supply and demand adjustment market uses electric power energy whose main purpose is to adjust the supply and demand balance up to GC. It is created as a separate market from the Japan Electric Power Exchange (JEPX) that handles it.

  Due to the above-mentioned situation, conventionally, the general electric power company has performed frequency control and supply / demand balance adjustment by utilizing its own power source in the area under its own jurisdiction (see Patent Document 1), but establishment of a supply / demand adjustment market. As a result, general power transmission and distribution companies will be required to procure and operate cheaper adjustment power over a wide area through the market to reduce adjustment costs.

  On the other hand, the power generation / retailer forecasts the power demand in advance and adjusts the supply amount according to the forecast (see Patent Document 2). By strategically providing its own adjustment power (adjusted power supply) to the market, it is required to operate the most economical generator that maximizes profits.

JP, 2014-204577, A JP, 2017-182698, A

  However, since the supply and demand adjustment market is a newly created market, there is no technology capable of appropriately determining the necessity of bidding, and such technology is required.

  The present invention has been made in consideration of the above points, and it is an object of the present invention to propose a bid support system capable of appropriately determining the necessity of a bid.

  In order to solve such a problem, in the present invention, a power demand forecasting unit that forecasts power demand in an area under its control, a power supply managing unit that manages the power supply in the area, and an empty capacity of each interconnection line Based on a predicted grid operation information prediction unit, a power demand predicted by the power demand prediction unit, a supply capacity managed by the supply capacity management unit, and an available capacity predicted by the grid operation information prediction unit. Then, the adjustment power transaction price forecasting unit for forecasting the transaction price in the supply and demand adjustment market is provided.

  According to the above configuration, based on the power demand predicted by the power demand prediction unit, the supply capacity managed by the supply capacity management unit, and the free capacity predicted by the system operation information prediction unit, the supply and demand adjustment market The transaction price can be predicted.

  According to the present invention, it is possible to realize a bid support system for a supply and demand adjustment market.

It is a figure which shows an example of a structure which concerns on the bid assistance system by 1st Embodiment. It is a figure which shows an example of a structure which concerns on the supply and demand adjustment market bidding processing apparatus by 1st Embodiment. It is a figure which shows an example of a structure which concerns on the bid assistance system by 2nd Embodiment. It is a figure showing an example of a processing procedure concerning calculation of a bid amount by a 2nd embodiment. It is a figure which shows an example of a structure which concerns on the bid assistance system by 3rd Embodiment. It is a figure showing an example of a processing procedure concerning calculation of a bid amount by a 3rd embodiment.

  An embodiment of the present invention will be described below in detail with reference to the drawings. In the present embodiment, for example, a general power transmission and distribution company reduces adjustment costs by procuring adjustment power from a supply and demand adjustment market and operating in a wide area, and a power generation / retailer provides its own adjustment power (adjustment power source). We will explain the technology (configuration) to support the planning of adjustment power trading in order to realize the most economical generator operation that maximizes profits by strategically supplying to the supply and demand adjustment market.

  In the application of this technology to general power transmission and distribution companies, the necessary adjustment capacity of the area is calculated, and the necessity of bidding to the supply and demand adjustment market is judged from the result and each forecast and actual information. As a result, the general power transmission and distribution company can procure the power from the market only when the cost can be reduced by procuring and operating the adjustment power in a wide area.

  In the application of this technology to power generation / retailers, the necessity of bidding in the supply and demand adjustment market is judged by comparing the calculation result of the company's adjustable capacity provision amount and the energy trading price forecast value. As a result, the power generation / retailer can trade, for example, in a market where it can sell its own adjustment power (adjusted power supply) at a higher price.

(1) First Embodiment In FIG. 1, reference numeral 1 generally indicates a bid support system according to the first embodiment. It should be noted that the following is merely an example, and the invention itself is not intended to be limited to the following specific contents.

  FIG. 1 is a diagram illustrating an example of a configuration according to the bid support system 1. The bid support system 1 includes, for each area (for example, area A to area N), a central power supply command center system 110 including a supply and demand adjustment market bid processing device 100, and a demand and supply adjustment system 120 including the supply and demand adjustment market bid processing device 100. It is configured to include. Each of the central power feeding command system 110 and the supply and demand adjustment system 120 is connected to the supply and demand adjustment market 130, the electric power wide area operation promotion organization 140, the Japan Wholesale Electric Power Exchange 150 (JEPX), and the weather information company 160. Further, it may be connected to an engine (system, device, etc.) other than these.

  The supply and demand adjustment market bid processing device 100 may be configured as one function of the central power supply command center system 110, may be configured as one function of the supply and demand adjustment system 120, or may be configured as a center. It may be configured as one function of the power supply command center system 110 and the supply and demand adjustment system 120.

  The supply and demand adjustment market bid processing device 100 is, for example, an information processing device (computer) such as a notebook computer or a server device, and a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory) not shown. ), An HDD (Hard Disk Drive), a communication device, an output device, and the like. Functions of the demand and supply adjustment market bidding processing device 100 (a power demand forecasting unit 201, a supply capability management unit 202, a grid operation information forecasting unit 203, an adjustment power transaction price forecasting unit 204, an in-house adjusted power supply information management unit 205, a demand and supply adjustment market, which will be described later. The bid necessity determination unit 206 or the like) may be realized by, for example, the CPU reading a program stored in the ROM into the RAM and executing the program (software), or by hardware such as a dedicated circuit. It may be realized by a combination of software and hardware. Further, some of the functions of the supply and demand adjustment market bid processing device 100 may be realized by another computer capable of communicating with the supply and demand adjustment market bid processing device 100.

  The central power supply command station system 110 is a system used by general power transmission and distribution companies, and is a system for procuring and operating cheaper adjusting power in a wide area through the market to reduce the adjusting cost.

  The supply and demand adjustment system 120 is a system used by a power generation / retailer, has one or a plurality of generators 121, and strategically provides its own adjustment power (adjusted power source) to the market to maximize profits. It is a system for operating the most economical generator 121 that can be realized.

  FIG. 2 is a diagram showing an example of a configuration of the supply and demand adjustment market bid processing device 100. The demand / supply adjustment market bidding processing device 100 includes a power demand forecasting unit 201, a supply capability management unit 202, a system operation information forecasting unit 203, an adjustment power transaction price forecasting unit 204, an in-house adjusted power supply information management unit 205, and a demand / supply adjustment market bidding necessity. The determination unit 206 is included.

  The power demand forecasting unit 201 forecasts power demand in an area under its control. The power demand prediction unit 201, for example, obtains weather information relating to the present and forecast such as weather, temperature (including maximum temperature and minimum temperature), precipitation amount, snowfall amount, humidity, atmospheric pressure, wind direction, wind speed, and sunshine time on the Internet, It is acquired from the weather information company 160 via a communication line or the like. The power demand prediction unit 201 predicts the power demand amount of the company and its own area based on the acquired weather information. The method for predicting the power demand amount is not particularly limited, and a known prediction method can be appropriately adopted. The power demand prediction unit 201 records the predicted power demand amount (power demand prediction value) and the past power demand record value in the power demand record / prediction 211.

  The supply capacity management unit 202 manages the supply capacity of the area under its control. The supply capacity management unit 202 records the past actual value and the future plan value (supply capacity plan value) in the supply capacity actual / plan 212 as the supply capacity (including the regulated power supply) information of the company and its own area, for example. There is.

  The system operation information prediction unit 203 predicts the free capacity of each interconnection line. The system operation information prediction unit 203 records, for example, the past actual value and the future plan value of the interconnecting line empty capacity acquired from the wide area electric power operation promotion organization 140 in the system operation result / plan 213. The past actual value and the future planned value of the interconnection line empty capacity may be calculated by each of the central power feeding command system 110 and the supply and demand adjustment system 120.

  The adjustment power transaction price prediction unit 204 is based on the power demand predicted by the power demand prediction unit 201, the supply power managed by the supply power management unit 202, and the available capacity predicted by the grid operation information prediction unit 203. And predict the transaction price in the supply and demand adjustment market. The adjustment power transaction price prediction unit 204 records, for example, the past transaction record of the supply and demand adjustment market 130 as the actual value (transaction record value) in the adjustment power transaction record / prediction 214. The adjustment power transaction price prediction unit 204 predicts the future adjustment price transaction price from the transaction actual value, the power demand forecast value, the supply capacity plan value of each company, and the like, and predicts the adjustment power transaction price (adjustment power transaction price). ) Is recorded in the adjustment power transaction record / prediction 214.

  The in-house adjusted power supply information management unit 205 manages the operating cost of the in-house adjusted power supply. The in-house adjusted power supply information management unit 205 holds, for example, the operating cost (startup cost, unit price for raising / lowering) of the in-house adjusted power supply in the in-house adjusted power supply information 215. The operating cost of the in-house adjusted power supply may be set by the operator on the screen or the like, and the value may be recorded in the in-house adjusted power supply information 215.

  The demand / supply adjustment market bidding necessity determination unit 206 calculates the demand / supply adjustment market 130 based on various actual values and forecast values (planned values) calculated by the processing units 201 to 205 and recorded in the respective data 211 to 215. To determine if bidding to The operator may be notified of the determination result on a screen or the like.

  In FIG. 2, various data such as the power demand record / prediction 211, supply capability record / plan 212, system operation record / plan 213, adjusting power transaction record / prediction 214, in-house adjusted power supply information 215, etc. An example in which it is stored in the processing device 100 (for example, HDD) has been shown, but the present invention is not limited to this. All or part of various data may be stored in a storage device that can communicate with the supply and demand adjustment market bid processing device 100.

  Further, the bid support system 1 may be provided with an output unit (display, printer, speaker, etc.) that outputs the transaction price predicted by the adjustment power transaction price prediction unit 204.

  According to the configuration described above, the general power transmission and distribution company can reduce the adjustment cost by procuring and operating the cheaper adjusting power in a wide area through the market based on the predicted transaction price of the adjusting power. In addition, the power generation / retailer can maximize profits by strategically providing its own adjusting power (adjusted power supply) to the market.

(2) Second Embodiment Even after the establishment of the demand and supply adjustment market, the general transmission and distribution company, as the power system operator, maintains the stable operation of the power system, so that the power demand and the power from the generator are maintained. It is necessary to match the supply amount. In particular, in recent years, there has been a problem that a large amount of renewable energy, such as solar power generation and wind power generation, is being introduced into the grid. For this problem, a supply and demand control function that considers output fluctuations of renewable energy. Has been devised. For example, there is disclosed a technique capable of improving frequency control performance by separating output fluctuations of natural energy and demand fluctuations of general loads (see Japanese Patent Laid-Open No. 2014-204577).

  By using the technique described in Patent Document 1, it is possible to optimize the supply and demand balance adjustment and the frequency control by utilizing the power supply owned by the company against the increase in output fluctuation due to the increase in renewable energy. However, in a situation where it is necessary to adjust the balance between supply and demand and frequency control over a wide area using the adjustment power procured in the supply and demand adjustment market, it is difficult to truly reduce the adjustment cost by the method of Patent Document 1. Is.

  In the present embodiment, an example will be described in which the supply and demand adjustment market bid processing device 100 is applied to a central power feeding command center system 110 of a general power transmission and distribution business operator. For example, as shown in FIG. 3, the supply and demand adjustment market bidding processing device 100 is configured to include an adjustment power required amount calculation unit 301 that calculates the adjustment power required amount of an area under its own control.

  The demand / supply adjustment market bidding necessity determination unit 206 calculates the transaction price predicted by the adjustment power transaction price prediction unit 204, the operating cost managed by the in-house adjusted power supply information management unit 205, and the adjustment power necessary amount calculation unit 301. Whether or not a bid is required in the supply and demand adjustment market is determined based on the required adjustment power and the adjustment power procurement amount of the adjustment power supply in the supply and demand adjustment market. The demand / supply adjustment market bidding necessity determination unit 206, for example, various actual values and predicted values (planned values) calculated by the respective processing units 202 to 206 and recorded in the storage units 214 and 215, and adjustment force necessary amount calculation. Comparing the necessary amount of adjusting power (adjusting power required amount) of the area calculated by the department 301, and procuring from the supply and demand adjustment market 130 by the amount that the procurement cost of the adjusting power is lower than the operating cost of the own regulated power supply. The bid amount (market procurement amount) is calculated using the above as a judgment condition. Note that the necessary amount of adjusting power for the own area may be set by the operator via a screen or the like, instead of being calculated by the necessary adjustment amount calculating unit 301.

  FIG. 4 is a diagram illustrating an example of a processing procedure for calculating a bid amount (market procurement amount) in the supply and demand adjustment market bid processing device 100.

  First, the power demand prediction unit 201 predicts the power demand in the processing target time section (the time section) (step S401).

  Next, the supply capacity management unit 202 calculates the supply capacity of the time section (step S402).

  Next, the grid operation information prediction unit 203 predicts the interconnection line empty capacity of the time section (step S403).

  Next, the adjustment power transaction price prediction unit 204 predicts the adjustment power transaction price of the time section (step S404).

  Next, the demand / supply adjustment market bidding necessity determination unit 206 determines the adjustment power procurement cost (a price obtained by adding a fee or the like to the adjustment power transaction price of the relevant time section) and the own adjustment power supply information management unit 205 owns it. The operating cost of the regulated power source is compared for each regulated power source in the market (step S405). When the demand-supply adjustment market bidding necessity determination unit 206 determines that the adjustment power procurement cost is lower than the operating cost of the in-house adjusted power supply, the process is moved to step S406 as market procurement, and the adjustment power procurement cost is adjusted by the own adjustment power supply. If it is determined that the operating cost does not fall below the above, the process proceeds to step S408, assuming that the market procurement is not performed.

  In step S406, the supply and demand adjustment market bidding necessity determination unit 206 determines whether the market procurement amount satisfies the adjustment power required amount of the own area calculated by the adjustment power required amount calculation unit 301. If the market supply / demand adjustment market determination unit 206 determines that the market procurement amount can satisfy the adjustment capability required amount of the own area, the process proceeds to step S407, and the market procurement amount cannot satisfy the adjustment capability required amount of the own area. If it is determined that, the processing from step S405 is repeated for another regulated power supply on the market.

  In this way, the supply and demand adjustment market bidding necessity determination unit 206 determines the transaction price of the adjusted power supply to be processed and the expenses related to the procurement until the adjustment power requirement of the supply and demand adjustment market is adjusted in order from the adjustment power supply with the lowest procurement cost. When the adjustment power adjustment cost including and is compared with the operation cost and it is determined that the adjustment power adjustment cost is equal to or higher than the operation cost, it is determined not to bid on the supply and demand adjustment market for the adjusted power supply to be processed, When it is determined that the adjustment power adjustment cost is less than the operating cost, it is determined that the adjustment power supply to be processed is to be bid in the supply and demand adjustment market.

  In the present embodiment, when the required adjustment power does not satisfy the required adjustment power, it is determined that the required adjustment power will be procured from the regulated power source to be processed, and the required adjustment power does not satisfy the required adjustment power. In this case, it is decided to procure the amount of adjustable power procured from the regulated power source to be processed, and the remaining required amount of adjustable power (necessary amount of adjustable power-procured amount of adjustable power to be treated) is procured from another regulated power source in the market. However, the present invention is not limited to this.

  In step S407, the demand / supply adjustment market bidding necessity determination unit 206 calculates the sum of the adjustment power procurement amounts as the adjustment power market procurement amount (bid amount).

  In step S408, the supply and demand adjustment market bidding necessity determination unit 206 determines that the market procurement of adjustment power is impossible, and ends the processing.

  According to the above-described processing, the general power transmission and distribution business operator can procure in the market when the cost can be reduced by procuring and operating the adjusting power in a wide area.

(3) Third Embodiment On the other hand, the power generation / retailer predicts the power demand amount in advance, adjusts the supply amount according to the forecast, and matches the power demand amount with the power supply amount. It is necessary to achieve the same amount for 30 minutes at the same time. In order to minimize the gap (imbalance) between the electric power demand and the electric power supply, it is necessary to accurately predict the electric power demand and to properly procure the necessary electric power demand. There is. In this regard, a technique for calculating the imbalance amount and supporting the elimination of the generated imbalance is disclosed (see Japanese Patent Laid-Open No. 2017-182698).

  Further, the technique described in Patent Document 2 is a technique for utilizing the transaction of electric power energy (kWh) in order to minimize the imbalance, and an adjustment power (adjustment power supply) for eliminating the generated imbalance. (ΔkW) transaction is not assumed.

  In the present embodiment, an example will be described in which the supply and demand adjustment market bidding processing device 100 is applied to a supply and demand adjustment system 120 of a power generation / retailer. For example, as shown in FIG. 5, the supply and demand adjustment market bid processing device 100 is configured to include an energy transaction price prediction unit 501, an adjustment power provisionable amount calculation unit 502, and an energy transaction performance / prediction 511.

  The energy transaction price prediction unit 501 records the past transaction record of the Japanese wholesale power exchange 150 in the energy transaction record / prediction 511 as a record value. Further, the energy transaction price prediction unit 501 predicts a future energy transaction price from the transaction actual value, the power demand predicted value, the supply capacity plan value of each company, etc., and the predicted energy transaction price is the energy transaction actual result / prediction 511. To record.

  The adjustable power available supply amount calculation unit 502 calculates the power sale merit in the energy transaction by removing the operating cost and the expense related to the power sale from the transaction price predicted in the energy transaction market. The adjustment power supplyable amount calculation unit 502 uses, for example, the predicted price of the energy transaction calculated by the energy transaction price prediction unit 501 as input information, is a power sale merit (profit) in the energy transaction, for example, income (sold Price) -cost (operating cost, commission, etc.)) is calculated.

  The demand / supply adjustment market bidding necessity determination unit 206 bids on the supply / demand adjustment market based on the transaction price predicted to be traded in the energy trading market and the transaction price predicted by the adjustment power transaction price prediction unit 204. Determine the necessity. The demand / supply adjustment market bidding necessity determination unit 206 uses, for example, the adjustment power transaction based on various actual values and predicted values (planned values) calculated by the processing units 202 to 206 and recorded in the storage units 212 to 216. If the power selling merit in the energy trading is less than the power selling merit in the energy trading, the power selling merit is calculated and compared with the power selling merit in the energy trading calculated by the adjustable power supplyable amount calculating unit 502. A bid amount (market power sales amount) and a bid price are calculated under the condition that a selling bid is made in the supply and demand adjustment market. Here, the condition for calculating the power sale merit in each market may be set by the operator on a screen or the like.

  FIG. 6 is a diagram showing an example of a processing procedure for calculating a bid amount (market power sale amount) in the supply and demand adjustment market bid processing device 100.

  First, the power demand prediction unit 201 predicts the power demand in the time section (step S601).

  Next, the supply capacity management unit 202 calculates the supply capacity of the time section (step S602).

  Next, the grid operation information prediction unit 203 predicts the interconnection line empty capacity of the time section (step S603).

  Next, the adjustment power transaction price prediction unit 204 predicts the adjustment power transaction price of the time section (step S604).

  Next, the supply and demand adjustment market bidding necessity determination unit 206 calculates the power selling merit in the adjustment power transaction based on the adjustment power transaction price (step S606).

  The demand / supply adjustment market bidding necessity determination unit 206 compares the power sale merit of the adjustment power transaction with the power sale merit of the energy transaction (step S606). If the power supply / demand adjustment market bidding necessity determination unit 206 determines that the power selling merit in the adjustment power transaction exceeds the power selling merit in the energy transaction, it determines that a bid is placed in the power supply / demand adjustment market, and moves the process to step S607. If it is determined that the power sale merit in the adjustment power trade does not exceed the power sale merit in the energy trade, it is determined that the bid is not placed in the supply and demand adjustment market, and the process proceeds to step S608.

  In step S607, the supply and demand adjustment market bidding necessity determination unit 206 calculates (determines) the bid amount (market power sales amount) and the bid price for the supply and demand adjustment market 130.

  In step S608, the supply and demand adjustment market bidding necessity determination unit 206 determines that the market power sale of the adjustment power is not possible, and the processing ends.

  In this way, the demand and supply adjustment market bidding necessity determination unit 206 determines from the power sale merit in the energy transaction calculated by the adjustment power supplyable amount calculation unit 502 and the transaction price predicted by the adjustment power transaction price prediction unit 204. If it is judged that the power selling merit in the energy trading is less than the power selling merit in the energy trading, the power supply merit in the energy trading excluding the operating cost and the cost related to the power selling is compared with It is determined that a bid will be placed on the adjusted market.

  According to the above-mentioned processing, the power generation / retailer can trade in the market where it can sell its adjustment power (adjusted power supply) at a higher price.

(4) Other Embodiments In the above embodiment, the case where the present invention is applied to the bid support system has been described, but the present invention is not limited to this, and various other systems and devices. , Can be widely applied to methods and programs.

  In addition, in the above description, information such as programs, tables, and files for realizing each function is stored in a memory, a storage device such as a hard disk or SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD. Can be placed in

  In addition, the configurations described above may be appropriately changed, rearranged, combined, or omitted without departing from the scope of the present invention.

  1 ... Bidding support system, 100 ... Supply and demand adjustment market bid processing device.

Claims (6)

A power demand forecasting unit that forecasts power demand in the area under its control,
A supply capacity management unit that manages the supply capacity of the area,
A system operation information prediction unit that predicts the free capacity of each interconnection line,
Based on the power demand predicted by the power demand prediction unit, the supply capacity managed by the supply capacity management unit, and the free space predicted by the grid operation information prediction unit, the transaction price of the supply and demand adjustment market is calculated. Adjustable transaction price forecasting unit to forecast,
A bid support system comprising: An adjusting unit for outputting the transaction price predicted by the transaction price predicting unit;
The bid support system according to claim 1, wherein: An in-house adjusted power supply information management unit that manages the operating costs of the in-house adjusted power supply,
An adjusting force requirement calculating unit for calculating the adjusting force requirement of the area,
The transaction price predicted by the adjustment power transaction price prediction unit, the operating cost managed by the in-house adjusted power supply information management unit, the adjustment power required amount calculated by the adjustment power required amount calculation unit, and the supply and demand adjustment. A supply and demand adjustment market bidding necessity determination unit that determines whether or not a bid is required in the supply and demand adjustment market based on the adjustment power procurement amount of the market adjustment power supply;
The bid support system according to claim 1, further comprising: The supply and demand adjustment market bidding necessity determination unit determines the transaction price of the adjusted power supply to be processed and the expenses related to the procurement until the adjustment power supply with the lowest adjustment power procurement cost of the supply and demand adjustment market is satisfied in order. If the adjustment power adjustment cost including the adjustment power cost is compared with the operation cost, and it is determined that the adjustment power adjustment cost is equal to or higher than the operation cost, a bid is not made to the supply and demand adjustment market for the adjusted power supply to be processed. If it is determined that the adjustment power adjustment cost is less than the operating cost, it is determined to bid on the supply and demand adjustment market for the adjustment power source to be processed,
The bid support system according to claim 3, wherein: Based on the transaction price predicted to be traded in the energy trading market and the transaction price predicted by the adjustment power transaction price prediction unit, it is necessary to determine whether or not to bid in the supply and demand adjustment market. Equipped with a rejection unit,
The bid support system according to claim 1, wherein: An in-house adjusted power supply information management unit that manages the operating costs of the in-house adjusted power supply,
An adjustment power supplyable amount calculation unit for calculating a power selling merit in an energy transaction that excludes the operating cost and the cost related to power selling from the transaction price predicted in the energy trading market,
The demand and supply adjustment market bidding necessity determination unit determines the power selling merit in the energy transaction calculated by the adjustment power supplyable amount calculation unit and the operating cost from the transaction price predicted by the adjustment power transaction price prediction unit. If it is determined that the power selling merit in the energy trading is less than the power selling merit in the adjusting power transaction, comparing the power selling merit in the power trading in the power trading excluding the expenses related to power selling, Decide to bid on the adjusted market,
The bid support system according to claim 5, wherein:

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