Settlement amount calculation device, imbalance settlement system, settlement amount calculation method, and program

Abstract

To provide a settlement amount calculation device capable of allocating costs of increasing or decreasing greenhouse gas emissions generated when an amount of electricity generated is adjusted to prevent an imbalance in the supply and demand of electric power.SOLUTION: A settlement amount calculation device includes: an offset amount calculation unit that calculates a fluctuation of greenhouse gas emissions according to an amount of regulated power sources and calculates an amount of offset to offset the fluctuation in emissions; an imbalance acquisition unit that acquires power generation by power generation companies, and a difference between an actual value and a planned value in electric power demand of electricity sellers; and an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation companies and power sellers on the basis of the difference acquired by the imbalance acquisition unit.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a settlement amount calculation device, an imbalance settlement system, a settlement amount calculation method, and a program. [Background technology]

[0002] Patent Document 1 discloses an energy trading system that issues energy trading tokens, each containing an amount of energy and a compensation amount, and environmental value tokens, which are an evaluation of the degree of contribution to the environment, based on the amount of energy generated or consumed by a user. This energy trading system increases the value of the environmental value tokens when electricity generated by a generation type with a high degree of contribution to the environment is stored in a storage type with a high degree of contribution to the environment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2020 / 138514 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned electricity trading system has a problem in that it does not take into consideration the environmental load when adjusting the amount of power generation to prevent an imbalance between the supply and demand of electricity.

[0005] The present invention has been made in consideration of the above circumstances, and provides a settlement amount calculation device, an imbalance settlement system, a settlement amount calculation method, and a program that can allocate the costs of increasing or decreasing greenhouse gas (GHG, Greenhouse Gas, Greenhouse Effect Gas) emissions that are generated when adjusting power generation volume so as not to cause an imbalance in the supply and demand of electricity. [Means for solving the problem]

[0006] The present invention has been made to solve the above-mentioned problems, and one aspect of the present invention is a settlement amount calculation device that includes an offset amount calculation unit that calculates the amount of fluctuation in greenhouse gas emissions according to the amount of activation of an adjustable power source and calculates an offset amount to offset the amount of fluctuation in the emissions, an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the power generation amount of a power generation company or the power demand amount of a power sales company, and an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power sales company based on the difference acquired by the imbalance acquisition unit.

[0007] Another aspect of the present invention is the settlement amount calculation device described above, wherein when the offset amount is an expense, the allocation calculation unit allocates the expense to the power generation company whose actual value of the power generation amount is below the planned value, or the power sales company whose actual value of the power demand amount exceeds the planned value.

[0008] Another aspect of the present invention is the settlement amount calculation device described above, wherein when the offset amount is revenue, the allocation calculation unit allocates the revenue to the power generation company whose actual value of the power generation amount exceeds the planned value, or the power sales company whose actual value of the power demand amount is below the planned value.

[0009] Another aspect of the present invention is an imbalance settlement system that includes an offset amount calculation unit that calculates the amount of fluctuation in greenhouse gas emissions according to the amount of activation of an adjustable power source and calculates an offset amount to offset the amount of fluctuation in the emissions, an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the power generation amount of a power generation company or the power demand amount of a power sales company, and an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power sales company based on the difference acquired by the imbalance acquisition unit.

[0010] Another aspect of the present invention is the imbalance settlement system described above, which includes a settlement unit that uses the allocation result by the allocation calculation unit to settle with the power generation company or the power sales company.

[0011] Another aspect of the present invention is the above-mentioned imbalance settlement system, which includes an output supply unit that supplies the output of the regulated power source, and an imbalance supply unit that supplies the actual value of the power generation amount of the power generation company or the difference between the actual value and the planned value of the power demand amount of the power sales company.

[0012] Another aspect of the present invention is a settlement amount calculation method having a first step of calculating the amount of fluctuation in greenhouse gas emissions according to the amount of operation of an adjustable power source and calculating an offset amount to offset the amount of fluctuation in emissions; a second step of obtaining the difference between the actual value and the planned value of the power generation amount of a power generation company or the power demand amount of a power seller; and a third step of allocating the offset amount calculated in the first step to the power generation company or the power seller based on the difference obtained in the second step.

[0013] Another aspect of the present invention is a program for causing a computer to function as an offset amount calculation unit that calculates the amount of fluctuation in greenhouse gas emissions according to the amount of activation of an adjustable power source and calculates an offset amount to offset the amount of fluctuation in emissions, an imbalance acquisition unit that acquires the difference between the actual and planned values ​​of the power generation amount of a power generation company or the power demand amount of a power sales company, and an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power sales company based on the difference acquired by the imbalance acquisition unit. [Effects of the Invention]

[0014] According to this invention, the settlement amount calculation device can allocate the cost of increasing or decreasing greenhouse gas emissions that occurs when adjusting the amount of power generation so as not to cause an imbalance between the supply and demand of electricity. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic block diagram showing the configuration of an imbalance settlement system 10 according to an embodiment of the present invention. [Figure 2] 10 is a table showing an example of the contents stored in a supply-demand plan storage unit 106 in the embodiment. [Figure 3] 10 is a flowchart illustrating the operation of the settlement amount calculation device 100 in the embodiment. [Figure 4] 10 is a flowchart illustrating the processing of an allocation calculation unit 108 in the embodiment. [Figure 5] FIG. 10 is a diagram showing an example of a screen for notifying a settlement amount by the allocation calculation unit 108 in the same embodiment. [Figure 6] FIG. 2 is an explanatory diagram illustrating the hardware configuration of each device according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a schematic block diagram showing the configuration of an imbalance settlement system 10 according to one embodiment of the present invention. The imbalance settlement system 10 includes a settlement amount calculation device 100, a regulated power supply facility 200 (power generation amount supply unit), a power generation company facility 300 (imbalance supply unit), a power seller facility 400 (imbalance supply unit), a greenhouse gas trading system 500, and a settlement system 600 (settlement unit, fee imposition and adjustment system). Note that the number of regulated power supply facilities 200, power generation company facilities 300, and power seller facilities 400 may be plural.

[0017] The settlement amount calculation device 100 calculates a settlement amount for each of a power generation company and a power seller (retailer) regarding costs or revenues associated with changes in greenhouse gas emissions from regulated power sources. The settlement amount calculation device 100 may be realized by one or more computers loading and executing a program. The settlement amount calculation device 100 may also be a settlement amount calculation system composed of multiple devices, such as multiple computers connected via a network. The settlement amount calculation device 100 is communicably connected to a regulated power source facility 200, a power generation company facility 300, a power seller facility 400, a greenhouse gas trading system 500, and a settlement system 600 via a network such as the Internet.

[0018] The regulated power supply facility 200 is a regulated power supply facility for adjusting the imbalance between the amount of power supply (power generation) and the amount of power demand. To adjust the imbalance, the regulated power supply notifies the settlement amount calculation device 100 of the amount of power to be activated for each predetermined time period. In a power transmission and distribution network, the total planned amount of power generation and the total planned amount of power demand are planned to be balanced. However, for example, when the amount of power generation by a power generation company falls short of the planned amount, the amount of power generation by the regulated power supply is increased to make up for the shortfall in power generation. Conversely, when the amount of power generation by a power generation company exceeds the planned amount, the amount of power generation by the regulated power supply is decreased to make up for the increase in power generation. Furthermore, when the power demand of a power seller falls short of the planned amount, the amount of power generation by the regulated power supply is decreased, and when the demand exceeds the planned amount, the amount of power generation by the regulated power supply is increased. These increases and decreases in the amount of power generation by the regulated power supply are called activation amounts. The activation amount takes a positive value when the amount of power generation increases, and a negative value when the amount of power generation decreases.

[0019] The regulated power source may be a power generation facility owned by a power generation company, and adjusts the amount of power generated in response to a request from a power transmission and distribution company to adjust the imbalance. The regulated power source may be a power generation facility such as a thermal power plant or a hydroelectric power plant, a power storage facility such as a storage battery, a power generation facility using natural energy, or a VPP (virtual power plant) consisting of one or more load facilities and power generation facilities. Here, the amount of power supplied by a power storage facility is also referred to as the amount of power generated. When there are multiple regulated power sources, the regulated power source facility 200 may notify the amount of power to be generated for each regulated power source.

[0020] The power generation company facility 300 notifies the settlement amount calculation device 100 of the actual value of the amount of power generated by the power generation facility operated by the power generation company for each predetermined time period. Note that the amount of power generated by the regulated power source does not need to be included in this actual value. The power seller facility 400 notifies the settlement amount calculation device 100 of the actual value of the amount of power demanded by the consumer with whom the power seller has a contract for each predetermined time period.

[0021] The greenhouse gas trading system 500 provides market prices (eg, price per ton of carbon dioxide) for trading greenhouse gas emissions. The settlement system 600 is a system that settles accounts with power generation companies and electricity selling companies using the settlement amount calculated by the settlement amount calculation device 100.

[0022] The settlement amount calculation device 100 includes an adjustment power source activation amount acquisition unit 101, an electric power supply record acquisition unit 102, an electric power demand record acquisition unit 103, an offset amount calculation unit 104, an imbalance calculation unit 105 (imbalance acquisition unit), a supply and demand plan storage unit 106, a greenhouse gas market price acquisition unit 107, and an allocation calculation unit 108. The adjustment power source activation amount acquisition unit 101 acquires the activation amount for each time period notified by the adjustment power source facility 200.

[0023] The power supply record acquisition unit 102 acquires the record value of the amount of power generated for each time period notified by the power generation company facility 300. The power demand record acquisition unit 103 acquires the record value of the amount of power demand for each time period notified by the power selling company facility 400. The unit of these record values ​​may be the amount of power (Wh) or a representative value such as the average value of power (W) for the time period.

[0024] The offset amount calculation unit 104 calculates the amount of fluctuation in greenhouse gas emissions corresponding to the amount of generation acquired by the regulated power source generation amount acquisition unit 101, and calculates an offset amount to offset the amount of fluctuation in the emissions. The increase or decrease in greenhouse gas emissions corresponding to the amount of generation may vary depending on the configuration of the regulated power source used at that time. For example, if the amount of generation of the regulated power source is increased by α kWh from the planned amount, and the greenhouse gas emissions (GHG characteristics) from the natural gas thermal power generation are β tons of carbon dioxide per kWh, the offset amount calculation unit 104 calculates the amount of fluctuation in greenhouse gas emissions corresponding to the amount of generation as an increase of α × β tons of carbon dioxide. The GHG characteristics (t / Wh) of each regulated power source may be input to the offset amount calculation unit 104 by an operator using input means such as a keyboard or mouse, or may be stored in advance by the offset amount calculation unit 104.

[0025] Furthermore, the offset amount calculation unit 104 may calculate the offset amount by multiplying the market price in greenhouse gas emissions trading by the amount of fluctuation in greenhouse gas emissions. For example, if the amount of greenhouse gas emissions corresponding to the activation amount is an increase of γ tons of carbon dioxide and the market price in greenhouse gas emissions trading is ε yen per ton, then the offset amount is the cost of γ × ε yen. Conversely, if the amount of fluctuation in greenhouse gas emissions corresponding to the activation amount is a decrease of ε' tons of carbon dioxide and the market price in greenhouse gas emissions trading is ε yen per ton, then the offset amount is the revenue of ε' × ε yen.

[0026] The imbalance calculation unit 105 calculates the difference between the actual value and the planned value of the power generation amount of the power generation company, and the difference between the actual value and the planned value of the power demand amount of the power seller. The actual value of the power generation amount of the power generation company is the actual value acquired by the power supply record acquisition unit 102. The actual value of the power demand amount of the power seller is the actual value acquired by the power demand record acquisition unit 103. The planned value of the power generation amount of the power generation company and the planned value of the power demand amount of the power seller are stored in the supply demand plan storage unit 106.

[0027] The supply and demand plan storage unit 106 stores the planned values ​​of the power generation amount of the power generation company and the planned values ​​of the power demand amount of the power seller for each predetermined time period. These planned values ​​may be provided by the power generation company facility 300 and the power seller facility 400, or may be provided by other devices.

[0028] The greenhouse gas market price acquisition unit 107 acquires the market price (market price) in greenhouse gas emission trading. Note that this acquisition does not have to be in real time. The greenhouse gas market price acquisition unit 107 may also acquire a price input by an operator. The market price may be different between the selling price and the buying price of greenhouse gas emissions.

[0029] The allocation calculation unit 108 calculates the offset amount to be allocated to the power generation company and the power selling company based on the difference between the offset amount calculated by the offset amount calculation unit 104 and the imbalance calculation unit 105. The allocation calculation unit 108 notifies the clearing system 600 of the allocated offset amount as the settlement amount with each company. Note that the allocation calculation unit 108 may calculate the total amount of the allocated offset amount for a certain period for each company and notify the clearing system 600 of that total amount as the settlement amount with that company. Furthermore, the allocation calculation unit 108 may notify the operator of the settlement amount to be notified to the clearing system 600 by displaying it on a screen.

[0030] Furthermore, when the offset amount is an expense, the allocation calculation unit 108 may allocate the expense to a power generation company whose actual value of power generation is lower than the planned value and to a power seller whose actual value of power demand is higher than the planned value. This allocation may be proportional to the absolute difference between the actual value and the planned value of each company. Furthermore, when the offset amount is a profit, the allocation calculation unit 108 may allocate the profit to a power generation company whose actual value of power generation is higher than the planned value and to a power seller whose actual value of power demand is lower than the planned value. This allocation may be proportional to the absolute difference between the actual value and the planned value of each company.

[0031] Fig. 2 is a table showing an example of the contents stored in the supply and demand plan storage unit 106 in this embodiment. As shown in Fig. 2, the supply and demand plan storage unit 106 stores, in association with each business operator name (item "Business operator" in Fig. 2), information distinguishing between power generation business operators and power sellers (item "Power generation / power sale" in Fig. 2), and planned values ​​of power generation amount or power demand amount for each time period (items "Time period T1," "Time period T2," "Time period T3," "Time period T4," ... in Fig. 2). 2, the supply demand plan storage unit 106 stores "business operator A" in association with "power generation" indicating a power generation business operator, and "x1 [Wh]," "x2 [Wh]," "x3 [Wh]," "x4 [Wh]," etc. indicating planned values ​​of power generation amount for each time period. Also, the supply demand plan storage unit 106 stores "business operator B" in association with "power sales" indicating a power sales business operator, and "y1 [Wh]," "y2 [Wh]," "y3 [Wh]," "y4 [Wh]," etc. indicating planned values ​​of power demand amount for each time period.

[0032] 3 is a flowchart illustrating the operation of the settlement amount calculation device 100 in this embodiment. First, the regulated power source activation amount acquisition unit 101 acquires the activation amount of the regulated power source from the regulated power source equipment 200 (step Sa1). Next, the greenhouse gas market price acquisition unit 107 acquires the market price of the greenhouse gas from the greenhouse gas trading system 500 (step Sa2). Next, the offset amount calculation unit 104 calculates the offset amount (step Sa3). This offset amount is calculated by calculating the increase or decrease in greenhouse gas emissions according to the activation amount acquired in step Sa1, and multiplying the increase or decrease in emissions by the market price acquired in step Sa2.

[0033] Next, the power supply record acquisition unit 102 acquires the actual value of the power generation amount from the power generation company facility 300 (step Sa4). Next, the power demand record acquisition unit 103 acquires the actual value of the power demand amount from the power seller facility 400 (step Sa5). Next, the imbalance calculation unit 105 calculates the difference between the actual value and the planned value of the power generation amount of the power generation company, and the difference between the actual value and the planned value of the power demand amount of the power seller (step Sa6). Next, the allocation calculation unit 108 allocates the offset amount calculated in step Sa3 to the power generation company and the power seller based on the difference calculated in step Sa6 (step Sa7). That is, the allocation calculation unit 108 calculates the amount of the offset amount allocated to each company. Next, the allocation calculation unit 108 notifies the settlement system 600 of the allocation result (step Sa8).

[0034] The settlement amount calculation device 100 may repeat the flow of Fig. 3 to calculate the allocation for each predetermined time period. The repetition does not have to include all of the steps of Fig. 3 each time. For example, step Sa2 may be performed only once for a time period longer than the predetermined time period, such as once a day, and the market price of greenhouse gases acquired in that one repetition may be used in each of the other repetitions. The market price acquired in step Sa2 may also be an average value for a certain period.

[0035] The order of the steps may be different from that shown in Fig. 3. For example, steps Sa1 and Sa2 may be performed in the reverse order or in parallel. Similarly, steps Sa4 and Sa5 may be performed in the reverse order or in parallel, and steps Sa3 and Sa6 may be performed in the reverse order or in parallel.

[0036] FIG. 4 is a flowchart illustrating the processing of the allocation calculation unit 108 in this embodiment. The flowchart in FIG. 4 corresponds to the processing of step Sa7 in FIG. 3. First, the allocation calculation unit 108 determines whether the offset amount calculated by the offset amount calculation unit 104 is an expense (step Sb1). Note that the offset amount calculation unit 104 may determine that the offset amount is an expense when the amount of fluctuation in greenhouse gas emissions corresponding to the activation amount of the regulated power source is a positive value (when it is an increase), and conversely, may determine that the offset amount is a revenue (not an expense) when it is a negative value (when it is a decrease). In step Sb1, when it is determined that the offset amount is an expense (step Sb1-Yes), the allocation calculation unit 108 selects, from among the power generation companies that have acquired actual values ​​of the amount of power generated and the power seller companies that have acquired actual values ​​of the amount of power demand, the power generation companies whose actual values ​​are below the planned value and the power seller companies whose actual values ​​are above the planned value (step Sb2). Next, the allocation calculation unit 108 allocates the offset cost between the selected power generation company and power seller company in proportion to the absolute difference between the actual value and the planned value (step Sb3).

[0037] On the other hand, when it is determined that the offset amount is not an expense (step Sb1-No), the allocation calculation unit 108 selects, from among the power generation company that has acquired the actual value of the power generation amount and the power seller that has acquired the actual value of the power demand amount, the power generation company whose actual value exceeds the planned value and the power seller whose actual value is below the planned value (step Sb4). Next, the allocation calculation unit 108 allocates the offset amount revenue between the selected power generation company and power seller in proportion to the absolute difference between the actual value and the planned value (step Sb5).

[0038] In step Sb1, the allocation calculation unit 108 may determine whether the offset amount is revenue, or may determine whether the offset amount is expense or revenue. When the allocation calculation unit 108 determines that the offset amount is revenue, it may perform the processes of steps Sb4 and Sb5. When the allocation calculation unit 108 determines that the offset amount is not revenue, it may perform the processes of steps Sb2 and Sb3.

[0039] FIG. 5 is a diagram showing an example of a screen for notifying the settlement amount by the allocation calculation unit 108 in this embodiment. As shown in FIG. 5, the allocation calculation unit 108 may display the target period for the settlement amount, and for each business operator, whether it is an expense or a revenue during that target period, and the settlement amount. In the example of FIG. 5, "TT" is displayed as the target period. Also, "Expenses" and "xxxxx yen" are displayed in association with "Business Operator A," "Expenses" and "yyyyy yen" are displayed in association with "Business Operator B," and "Expenses" and "zzzzz yen" are displayed in association with "Business Operator C."

[0040] FIG. 6 is an explanatory diagram illustrating the hardware configuration of each device according to the above-described embodiment. Each device is the settlement amount calculation device 100, the regulated power supply facility 200, the power generation company facility 300, the power seller facility 400, the greenhouse gas trading system 500, the settlement system 600, or a device constituting part of any of these. Each device is configured to include an input / output module I, a memory module M, and a control module P. The input / output module I is implemented to include some or all of the communication module H11, the connection module H12, the pointing device H21, the keyboard H22, the display H23, the button H3, the microphone H41, the speaker H42, the camera H51, and the sensor H52. The memory module M is implemented to include a drive H7. The memory module M may further be configured to include some or all of the memory H8. The control module P is implemented to include the memory H8 and a processor H9. These hardware components are communicatively connected to each other via a bus and are supplied with power from a power supply H6.

[0041] The connection module H12 is a digital input / output port such as a USB (Universal Serial Bus). In the case of a portable device, the pointing device H21, keyboard H22, and display H23 are touch panels. The sensor H52 is an acceleration sensor, a gyro sensor, a GPS receiver module, a proximity sensor, or the like. The power supply H6 is a power supply unit that supplies the electricity necessary to operate each device. In the case of a portable device, the power supply H6 is a battery. The drive H7 is an auxiliary storage medium such as a hard disk drive or a solid-state drive. The drive H7 may be a non-volatile memory such as an EEPROM or flash memory, or a magneto-optical disk drive or a flexible disk drive. Furthermore, the drive H7 is not limited to being built into each device, but may also be an external storage device connected to the connector of the connection module H12. The memory H8 is a main storage medium such as a random access memory. The memory H8 may also be a cache memory. The memory H8 stores instructions when executed by one or more processors H9. The processor H9 is a CPU (Central Processing Unit). The processor H9 may be an MPU (microprocessing unit) or a GPU (graphics processing unit). The processor H9 reads programs and various data from the drive H7 via the memory H8 and performs calculations to execute instructions stored in one or more memories H8.

[0042] The input / output module I is used for the regulated power source generation amount acquisition unit 101, the power supply record acquisition unit 102, the power demand record acquisition unit 103, the greenhouse gas market price acquisition unit 107, the allocation calculation unit 108, etc. The memory module M realizes the supply demand plan memory unit 106. The control module P is used to implement each unit of the settlement amount calculation device 100. Note that in this specification, etc., the descriptions of the settlement amount calculation device 100, the regulated power source generation amount acquisition unit 101, the power supply record acquisition unit 102, the power demand record acquisition unit 103, the offset amount calculation unit 104, the imbalance calculation unit 105, the supply demand plan memory unit 106, the greenhouse gas market price acquisition unit 107, and the allocation calculation unit 108 may be replaced with the description of the control module P.

[0043] The imbalance calculation unit 105 may acquire the difference between the actual value and the planned value from the power generation company facility 300 and the power seller facility 400. In this case, the settlement amount calculation device 100 may not include the power supply actual value acquisition unit 102, the power demand actual value acquisition unit 103, and the supply and demand plan storage unit 106.

[0044] Furthermore, the settlement amount calculation device 100 may calculate the difference between the actual value and the planned value for only one of the power generation company and the power seller company, and allocate the offset amount. That is, the imbalance calculation unit 105 may calculate the difference between the actual value and the planned value for either the power generation amount of the power generation company or the power demand amount of the power seller company. The allocation calculation unit 108 may allocate expenses or revenues to only one of the power generation company and the power seller company. The settlement amount calculation device 100 may not include the power supply actual value acquisition unit 102 or the power demand actual value acquisition unit 103, and the supply demand plan storage unit 106 may not store the planned values ​​of the power generation amount or the power demand amount. Furthermore, the imbalance settlement system 10 may not include the power generation company facility 300 or the power seller facility 400.

[0045] The following embodiment may also be adopted. (1) One embodiment is a settlement amount calculation device that includes an offset amount calculation unit that calculates the amount of fluctuation in greenhouse gas emissions according to the amount of activation of an adjustable power source and calculates an offset amount to offset the amount of fluctuation in the emissions; an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the power generation amount of a power generation company or the power demand amount of a power sales company; and an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power sales company based on the difference acquired by the imbalance acquisition unit. This allows the settlement amount calculation device to allocate the cost of increasing or decreasing greenhouse gas emissions that occurs when adjusting the amount of power generation so that an imbalance between power supply and demand does not occur.

[0046] (2) Another embodiment is the settlement amount calculation device described in (1), in which, when the offset amount is an expense, the allocation calculation unit allocates the expense to the power generation company whose actual value of the power generation amount is below the planned value, or the power sales company whose actual value of the power demand amount is above the planned value. This allows the settlement amount calculation device to allocate costs to the power generation company or power seller that caused the increase in the amount of regulated power source activation.

[0047] (3) Another embodiment is a settlement amount calculation device described in (1) or (2), in which, when the offset amount is revenue, the allocation calculation unit allocates the revenue to the power generation company whose actual value of the power generation amount exceeds the planned value, or the power sales company whose actual value of the power demand amount falls below the planned value. This allows the settlement amount calculation device to allocate profits to the power generation company or power seller that caused the reduction in the amount of power generated by the regulated power source.

[0048] (4) Another embodiment is an imbalance settlement system that includes an offset amount calculation unit that calculates the amount of fluctuation in greenhouse gas emissions according to the amount of operation of an adjustable power source and calculates an offset amount to offset the amount of fluctuation in the emissions; an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the power generation amount of a power generation company or the power demand amount of a power sales company; and an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power sales company based on the difference calculated by the imbalance acquisition unit. This allows the imbalance settlement system to allocate the costs of increases or decreases in greenhouse gas emissions that occur when adjusting power generation to prevent imbalances in electricity supply and demand.

[0049] (5) Another embodiment is an imbalance settlement system as described in (4), which includes a settlement unit that settles with the power generation company or the power sales company using the allocation results from the allocation calculation unit. This will allow the allocation of costs for increases or decreases in greenhouse gas emissions that arise when adjusting power generation volume to prevent imbalances in power supply and demand to power generation companies or power sellers to be settled.

[0050] (6) Another embodiment is an imbalance settlement system as described in (4) or (5), comprising a generation amount supply unit that supplies the generation amount of the regulated power source, and an imbalance supply unit that supplies the actual value of the power generation amount of the power generation company or the difference between the actual value and the planned value of the power demand amount of the power sales company. This makes it possible to obtain the activation amount for calculating the cost of increasing or decreasing greenhouse gas emissions that occurs when adjusting power generation so as not to cause an imbalance in power supply and demand, and further to obtain the imbalance in power generation or power demand for allocating the cost of the increase or decrease.

[0051] (7) Another embodiment is a settlement amount calculation method having a first step of calculating the amount of fluctuation in greenhouse gas emissions according to the amount of operation of an adjustable power source and calculating an offset amount to offset the amount of fluctuation in emissions; a second step of obtaining the difference between the actual value and the planned value of the power generation amount of a power generation company or the power demand amount of a power sales company; and a third step of allocating the offset amount calculated in the first step to the power generation company or the power sales company based on the difference obtained in the second step. As a result, the settlement amount calculation method can allocate the costs of increases or decreases in greenhouse gas emissions that occur when adjusting the amount of power generation so as not to cause an imbalance in the supply and demand of electricity.

[0052] (8) Another embodiment is a program for causing a computer to function as an offset amount calculation unit that calculates the amount of fluctuation in greenhouse gas emissions according to the amount of activation of an adjustable power source and calculates an offset amount to offset the amount of fluctuation in the emissions, an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the power generation amount of a power generation company or the power demand amount of a power sales company, and an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power sales company based on the difference acquired by the imbalance acquisition unit. This allows the program to make the computer allocate the costs of increasing or decreasing greenhouse gas emissions that occur when adjusting the amount of power generation so as not to cause an imbalance between the supply and demand of electricity.

[0053] 1 , the functions of the adjustment power source generation amount acquisition unit 101, the power supply record acquisition unit 102, the power demand record acquisition unit 103, the offset amount calculation unit 104, the imbalance calculation unit 105, the supply and demand plan storage unit 106, the greenhouse gas market price acquisition unit 107, and the allocation calculation unit 108 may be realized by recording a program on a computer-readable recording medium, and having a computer system read and execute the program recorded on this recording medium. Note that the "computer system" referred to here includes hardware such as an OS and peripheral devices.

[0054] Furthermore, if a WWW system is used, the "computer system" also includes the homepage provision environment (or display environment). "Computer-readable recording media" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as storage devices such as hard disks built into computer systems. Furthermore, "computer-readable recording media" also includes devices that dynamically store programs for a short period of time, such as communication lines used when transmitting programs over networks like the Internet or telephone lines, and devices that store programs for a fixed period of time, such as volatile memory within the computer systems that serve as servers and clients. The programs may also be programs that implement some of the aforementioned functions, or may be programs that can realize the aforementioned functions in combination with programs already stored in the computer system.

[0055] Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope that does not deviate from the gist of the present invention. [Explanation of symbols]

[0056] 10 Imbalance Clearing System 100 Settlement amount calculation device 101 Adjustment power source activation amount acquisition unit 102 Power Supply Record Acquisition Department 103 Electricity Demand Record Acquisition Department 104 Offset calculation section 105 Imbalance Calculation Unit 106 Supply and demand planning memory unit 107 Greenhouse Gas Market Price Acquisition Department 108 Allocation Calculation Unit 200 Regulated power equipment 300 Power generation facilities 400 Electricity seller facilities 500 Greenhouse Gas Trading System 600 Clearing System

Claims

1. an offset amount calculation unit that calculates a fluctuation amount of greenhouse gas emissions according to the amount of operation of the regulated power source and calculates an offset amount for offsetting the fluctuation amount of the emissions; an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the amount of power generated by the power generation company or the amount of power demand by the power selling company; an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power selling company based on the difference acquired by the imbalance acquisition unit; A settlement amount calculation device comprising:

2. The settlement amount calculation device of claim 1, wherein the allocation calculation unit allocates, when the offset amount is an expense, the expense to the power generation company whose actual value of the power generation amount is below the planned value, or to the power sales company whose actual value of the power demand amount exceeds the planned value.

3. The settlement amount calculation device described in claim 1, wherein when the offset amount is revenue, the allocation calculation unit allocates the revenue to the power generation company whose actual value of the power generation amount exceeds the planned value, or to the power sales company whose actual value of the power demand amount falls below the planned value.

4. an offset amount calculation unit that calculates a fluctuation amount of greenhouse gas emissions according to the amount of operation of the regulated power source and calculates an offset amount for offsetting the fluctuation amount of the emissions; an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the amount of power generated by the power generation company or the amount of power demand by the power selling company; an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power selling company based on the difference acquired by the imbalance acquisition unit; An imbalance clearing system comprising:

5. an activation amount supply unit that supplies an activation amount of the regulated power supply; an imbalance supply unit that supplies the actual value of the amount of power generated by the power generation company or the difference between the actual value and the planned value of the amount of power demanded by the power selling company; The imbalance clearing system of claim 4, comprising:

6. A first step in which a computer calculates the amount of fluctuation in greenhouse gas emissions according to the amount of operation of an adjustable power source, and calculates an offset amount to offset the amount of fluctuation in the emissions; a second step in which the computer acquires a difference between an actual value and a planned value of the amount of power generated by the power generation company or an amount of power demand by the power selling company; a third step in which the computer allocates the offset amount calculated in the first step to the power generation company or the power selling company based on the difference obtained in the second step; A settlement amount calculation method having the following.

7. Computer, an offset amount calculation unit that calculates a fluctuation amount of greenhouse gas emissions corresponding to the amount of operation of the regulated power source and calculates an offset amount for offsetting the fluctuation amount of the emissions; an imbalance acquisition unit that acquires the difference between the actual value and the planned value of the amount of power generated by the power generation company or the amount of power demand by the power selling company; an allocation calculation unit that allocates the offset amount calculated by the offset amount calculation unit to the power generation company or the power selling company based on the difference acquired by the imbalance acquisition unit; A program to function as a

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