Energy trading method, information processing device, and energy trading system

Abstract

To effectively use energy by adjusting a supply amount and a supply price of hydrogen between hydrogen stations and communities each of which is independently operated and managed.SOLUTION: An energy transaction method is executed by an information processing device. The information processing device: acquires first information including planned values of a hydrogen purchase amount and a hydrogen purchase unit price from a first energy management system managing energy resources of a region to be managed; acquires second information including planned values of hydrogen sales and a hydrogen sales unit price from a second energy management system managing a hydrogen production facility; and determines a supply amount and a unit price of hydrogen supplied from the hydrogen production facility to the energy resources on the basis of the first information and the second information.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to an energy trading method, an information processing device, and an energy trading system. [Background technology]

[0002] The concept of a community EMS (Energy Management System) is being developed to manage power generation facilities such as solar power generation and wind power generation distributed in a city or region, as well as the power supply from external power grids, and the power demand generated within the city or region as a whole.In addition, hydrogen stations that produce hydrogen using solar energy or electricity provided from the power grid are being installed, mainly to supply hydrogen to fuel cell vehicles (FCVs).

[0003] The power supply and demand in a community such as a city or region, and the amount of hydrogen produced at a hydrogen station, fluctuate due to various factors including weather. For this reason, a temporary surplus or shortage of power may occur within the community, and a temporary surplus or shortage of hydrogen produced at the hydrogen station may occur. For this reason, the surplus power is charged and discharged in a storage battery, and the surplus hydrogen is stored in or released from a storage facility. In addition, a system has been proposed in which hydrogen is supplied from a nearby hydrogen station when there is a shortage of power supplied from a power generation facility in the community (see, for example, Patent Document 1). The hydrogen provided from the hydrogen station can be converted into electricity by a fuel cell in the community. In this way, it is possible to effectively utilize renewable energy, particularly solar power generation and wind power generation, and reduce the amount of electricity purchased from outside. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-192570 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the previously proposed methods, when hydrogen is exchanged between an energy resource in a community and a hydrogen station, the energy resource in the community and the hydrogen station are managed by the same EMS. Therefore, the conventional method is limited to issuing instructions for the hydrogen station to provide hydrogen when there is an energy shortage in the community. The conventional method cannot be applied to the exchange of hydrogen between an energy resource in a community and a nearby hydrogen station, which are operated and managed by different entities.

[0006] The purpose of this disclosure, made in consideration of these circumstances, is to effectively utilize energy by adjusting the amount and price of hydrogen supply between hydrogen stations and communities such as cities or regions, each of which is independently operated and managed. [Means for solving the problem]

[0007] An energy trading method according to an embodiment of the present disclosure is an energy trading method executed by an information processing device. This method includes acquiring first information including planned values ​​of a hydrogen purchase amount and a hydrogen purchase unit price from a first energy management system that manages energy resources in a managed area, acquiring second information including planned values ​​of a hydrogen sales amount and a hydrogen sales unit price from a second energy management system that manages a hydrogen production facility, and determining a supply amount and a unit price of hydrogen to be supplied from the hydrogen production facility to the energy resource based on the first information and the second information.

[0008] An information processing device according to an embodiment of the present disclosure includes a first acquisition unit, a second acquisition unit, and a control unit. The first acquisition unit acquires first information including a hydrogen purchase amount and a planned value of a hydrogen purchase unit price from a first energy management system that manages energy resources in a managed area. The second acquisition unit acquires second information including a hydrogen sales amount and a planned value of a hydrogen sales unit price from a second energy management system that manages a hydrogen production facility. The control unit determines the supply amount of hydrogen to be supplied from the hydrogen production facility to the energy resource based on the first information and the second information.

[0009] An energy trading system according to an embodiment of the present disclosure includes an information processing device, a first energy management system, and a second energy management system. The first energy management system is a first energy management system that manages energy resources in a managed area, and transmits first information including a hydrogen purchase amount and a planned value of a hydrogen purchase unit price to the information processing device. The second energy management system is a second energy management system that manages a hydrogen production facility, and transmits second information including a hydrogen sales amount and a planned value of a hydrogen sales unit price to the information processing device. The information processing device determines the supply amount of hydrogen to be supplied from the hydrogen production facility to the energy resource based on the first information and the second information. Effect of the Invention

[0010] According to the present disclosure, the amount and price of hydrogen supplied can be adjusted between hydrogen stations and communities such as cities or regions, each of which is independently operated and managed, to enable efficient use of energy. [Brief description of the drawings]

[0011] [Figure 1] 1 is a block diagram showing a schematic configuration of an energy management system according to an embodiment of the present disclosure. [Diagram 2] 2 is a block diagram showing an example of the configuration of the information processing device in FIG. 1. [Diagram 3] 2 is a block diagram showing a configuration example of the energy resource and the power consumer in FIG. 1. [Figure 4] 2 is a block diagram showing an example of the configuration of the community EMS in FIG. 1. [Diagram 5] 2 is a block diagram showing an example of the configuration of the hydrogen station and the hydrogen demander in FIG. 1. [Figure 6] FIG. 2 is a block diagram showing a configuration example of the hydrogen station EMS in FIG. 1. [Figure 7] 2 is a block diagram showing a configuration example of a hydrogen supply line in FIG. 1. [Figure 8] FIG. 2 is a diagram showing a process flow in the energy trading system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Note that the drawings used in the following description are schematic. The dimensional ratios and the like in the drawings do not necessarily correspond to the actual ones.

[0013] (Overall system configuration) The energy trading system 1 is provided to optimize hydrogen usage between communities such as cities and regions and their neighboring hydrogen stations. As shown in FIG. 1, the energy trading system 1 includes an information processing device 10, a community EMS 20, and a hydrogen station EMS 30. EMS is an abbreviation for Energy Management System. The community EMS 20 is a first energy management system. The hydrogen station EMS 30 is a second energy management system.

[0014] (Information processing device) The information processing device 10 is a computer. For example, the information processing device 10 may be any one of a PC (Personal Computer) server, a workstation, and a general-purpose computer. The information processing device 10 is configured to be able to transmit and receive information between the community EMS 20 and the hydrogen station EMS 30. As shown in FIG. 2, the information processing device 10 includes a communication unit 11, a control unit 12, and a storage unit 13.

[0015] The communication unit 11 includes a communication module for communicating with the community EMS 20 and the hydrogen station EMS 30. The communication unit 11 may be connected to the community EMS 20 and the hydrogen station EMS 30 via a dedicated line or a Virtual Private Network (VPN). The communication unit 11 also serves as a first acquisition unit and a second acquisition unit.

[0016] The control unit 12 executes information processing performed by the information processing device 10. The control unit 12 includes one or more processors. The "processor" includes a general-purpose processor that executes programmed functions by loading a specific program, and a dedicated processor specialized for specific processing. As the dedicated processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), etc. can be adopted. The control unit 12 can execute processing based on a system program, an application program, etc. stored in the storage unit 13.

[0017] The storage unit 13 stores any information used in the operation of the information processing device 10. For example, the storage unit 13 stores system programs and application programs. The storage unit 13 includes a semiconductor memory and / or a magnetic memory. The semiconductor memory includes a read only memory (ROM), a random access memory (RAM), a flash memory, and the like. The RAM includes a dynamic random access memory (DRAM) and a static random access memory (SRAM). The magnetic memory includes a hard disk. The storage unit 13 may function as, for example, a main storage device, an auxiliary storage device, or a cache memory.

[0018] The community EMS 20 and the hydrogen station EMS 30 are computers, similar to the information processing device 10. The community EMS 20 and the hydrogen station EMS 30 have components equivalent to the communication unit 11, the control unit 12, and the storage unit 13 of the information processing device 10.

[0019] The community EMS 20 manages energy resources 21 distributed in a community, which is a managed area. The community EMS 20 predicts the amount of power demand by power consumers 22 in the community and the amount of power supply by power generation facilities and power storage facilities, etc., for a predetermined period. The predetermined period is, for example, one year, half a year, one month, the day after tomorrow, the day after, the current day, or one day from the present time, but is not limited to this. The community EMS 20 creates energy operation plans for a number of predetermined periods each having a different length. The community EMS controls the energy resources 21 so that power is supplied in accordance with the operation plan during the predetermined period. The community EMS 20 purchases power from the first power system 41 as necessary.

[0020] The hydrogen station EMS 30 manages the electricity used when hydrogen stations 31 in the vicinity of the community generate hydrogen, and the generated hydrogen. The hydrogen station EMS 30 predicts the hydrogen demand of hydrogen consumers 32, such as fuel cell vehicles (FCVs). The hydrogen station EMS 30 can provide a portion of the hydrogen generated at the hydrogen station 31 to the community's energy resources 21 through a hydrogen supply line 33. The hydrogen station EMS 30 predicts the amount of power generated from renewable electricity that does not generate carbon dioxide (CO2-free electricity) based on weather forecasts and the like in the vicinity of the hydrogen station 31. The hydrogen station EMS 30 makes a hydrogen production plan for a specified period. The hydrogen production plan includes the amount of hydrogen to be produced and a plan for procuring electricity to be used to manufacture hydrogen. The hydrogen station EMS 30 can receive power from a second power system 42 as necessary.

[0021] The control unit 12 of the information processing device 10 acquires first information including a planned value of the hydrogen purchase amount and the hydrogen purchase unit price for a predetermined period from the community EMS 20 via the communication unit 11. The first information may include information on the hydrogen purchase amount and the planned value of the hydrogen purchase unit price for each time period. The control unit 12 acquires second information including a planned value of the hydrogen sales amount and the hydrogen sales unit price for a predetermined period from the hydrogen station EMS 30 via the communication unit 11. The second information may include information on the planned value of the hydrogen sales amount and the hydrogen sales unit price for each time period. The control unit 12 determines the supply amount of hydrogen to be supplied from the hydrogen station 31 to the community energy resource 21 for the predetermined period based on the first information and the second information. The control unit 12 can transmit the determined supply amount of hydrogen and / or the production amount of hydrogen to be produced at the hydrogen station 31 to the community EMS 20 and the hydrogen station EMS 30 via the communication unit 11. The control unit 12 can also store the determined supply amount of hydrogen for the predetermined period in the memory unit 13.

[0022] In one embodiment, the information processing device 10 may acquire the first information and the second information for the next day by a predetermined time each day, and adjust the supply amount and supply unit price of hydrogen to be supplied from the hydrogen station 31 to the community energy resource 21 on the next day. The predetermined time may be, for example, noon or 3:00 pm. The supply amount and supply unit price of hydrogen are reflected by information on the weather forecast for the next day.

[0023] (Energy Resources) 3, the energy resources 21 managed by the community EMS 20 include one or more of a thermal power generation facility 211, a CO2-free power generation facility 212, a heat source device 213, an electric vehicle 214, and a storage battery 215, all of which are connected to a power grid 210. The energy resources 21 further include a fuel cell 216.

[0024] The power grid 210 can transfer power and transmit and receive information related to power. The community EMS 20 can acquire information such as the amount of surplus power that can be supplied and the amount of stored power from the energy resources 21 connected to the power grid 210. The community EMS 20 can control each energy resource 21 via the power grid 210. The community EMS 20 and each energy resource 21 configure a virtual power plant (VPP).

[0025] The thermal power generation facility 211 is a power generation facility that generates power by burning fuel introduced in hospitals, factories, commercial facilities, and the like in the community. The thermal power generation facility 211 includes power generation facilities that utilize exhaust heat generated in factories, waste disposal facilities, and the like. The thermal power generation facility 211 includes, for example, a gas turbine power generation device and a steam turbine power generation device. The thermal power generation facility 211 can generate heat together with electricity and supply it to the community. This allows the thermal power generation facility 211 to use fuel with high energy efficiency.

[0026] The CO2-free power generation facility 212 is a power generation facility that does not generate greenhouse gases such as carbon dioxide within the community. The CO2-free power generation facility 212 includes, for example, photovoltaics (PV), wind power generation facilities, and geothermal power generation facilities. For example, solar panels installed in general homes or commercial facilities are included in the CO2-free power generation facility 212.

[0027] The heat source devices 213 include heat pump water heaters, air conditioners, lighting devices, and the like in homes and buildings. These heat source devices 213 can be used to suppress power demand when the power demand is high, that is, for demand response (DR). That is, when the power demand in the community is high, the community EMS 20 can reduce the amount of power supplied to the heat source devices 213. The heat source devices 213 may include a heat storage tank that can store heat. The heat storage tank may switch between storing and releasing heat depending on the amount of power supplied.

[0028] The electric vehicle 214 (EV) is equipped with a large drive battery and can be charged and discharged via appropriate charging and discharging equipment to the power grid 210 in the community. Therefore, the electric vehicle 214 can be used to adjust the power supply and demand of the community. The electric vehicle 214 includes a battery electric vehicle (BEV) and a hybrid electric vehicle (HEV). The electric vehicle 214 includes, for example, electric vehicles 214 owned by public institutions, individuals, companies, car sharing businesses, and rental car companies.

[0029] The storage battery 215 is installed in a residence, a business establishment, etc. The storage battery 215 may be installed adjacent to the thermal power generation facility 211 or the CO2-free power generation facility 212 in order to store the electricity generated by these facilities. In addition, the business operator who operates the community EMS 20 may own a large-scale storage battery 215 in order to respond to fluctuations in the supply and demand of electricity.

[0030] The fuel cell 216 generates electricity using hydrogen supplied from the hydrogen station 31 via a hydrogen supply line 33. The fuel cell 216 is operated and managed by the community EMS 20. The fuel cell 216 generates water and electricity from hydrogen and oxygen in the air. The electricity generated by the fuel cell 216 is CO2-free electricity when it is generated using CO2-free hydrogen that is generated without generating carbon dioxide.

[0031] Electric power from the energy resources 21 is supplied to electric power consumers 22, such as ordinary homes 221 and facilities 222, such as businesses. When the energy resources 21 within the community alone are not able to meet the energy demand of the electric power consumers 22, the community EMS 20 receives system electric power supply from a first electric power system 41. The first electric power system 41 is a system that transforms, transmits, and distributes electric power generated in a large-scale power plant.

[0032] The operator of the community EMS 20 purchases power from the first power system 41. The community EMS 20 reserves the power to be purchased from the first power system 41 based on a prediction of power demand for a predetermined period. When the predetermined period actually arrives and the power consumer 22 generates a power demand that is greater than the prediction, and the power purchased from the first power system 41 exceeds the reserved amount of power, the community EMS 20 can purchase the additional power by paying a higher unit price than that reserved in advance.

[0033] The power supplied by the first power system 41 includes power that generates carbon dioxide due to burning fossil fuels, etc., and CO2-free power generated by power generation equipment that does not generate greenhouse gases such as carbon dioxide. The operator of the community EMS 20 can make a contract in advance for the CO2-free power included in the power to be purchased from the first power system 41. The community EMS 20 can make all or part of the power to be purchased from the first power system 41 CO2-free power.

[0034] (Community EMS) 4, the community EMS 20 includes the following functional blocks: a demand forecasting unit 201, an energy operation planning unit 202, a hydrogen consumption planning unit 203, and an electricity trading unit 204. Processing of each functional block is executed by a control unit (processor) of the community EMS 20. Each functional block may be executed by the same processor in the community EMS 20, or may be executed by different processors in the community EMS 20.

[0035] The demand forecasting unit 201 predicts the power demand of the power consumers 22 in the community managed by the community EMS 20. The demand forecasting unit 201 may predict the power demand based on information on past power demand, forecast information on weather and temperature, and information on events in the community, etc. For this reason, the community EMS 20 may be configured to be able to communicate with an external information source that provides weather information and / or event information, etc.

[0036] The energy operation planning unit 202 determines an energy operation plan for a predetermined period based on the power demand predicted by the demand prediction unit 201. The energy operation plan includes plans for power procurement and power usage control to meet the power demand. The energy operation planning unit 202 predicts the amount of power generated by the thermal power generation facility 211 and the CO2-free power generation facility 212 included in the energy resources 21 for a predetermined period. The energy operation planning unit 202 determines the energy operation plan taking into consideration the power purchase price contracted with the first power system 41 and the market price of power.

[0037] The energy operations planning unit 20 may formulate a plan to reduce the power supplied to the heat source equipment 213 and / or the electric vehicle 214 when the power generated by the thermal power generation facility 211 and the CO2-free power generation facility 212 falls below the power demand of the power consumer 22. The energy operations planning unit 20 may also formulate a plan to discharge the power stored in the electric vehicle 214 and the storage battery 215. Furthermore, the energy operations planning unit 20 may incorporate into the energy operations plan the receipt of hydrogen supply from the hydrogen supply line 33 to generate power in the fuel cell 216, and the receipt of system power supply from the first power system 41.

[0038] In addition, the energy operation planning unit 20 may create an energy operation plan so that when the electricity generated by the thermal power generation facility 211 and the CO2-free power generation facility 212 exceeds the electricity demand of the electricity consumer 22, the surplus electricity is stored in the electric vehicle 214 and / or the storage battery 215.

[0039] Furthermore, the energy operations planning unit 20 may create an energy operations plan taking into consideration the price of electricity purchased from the first power system 41 and the price of hydrogen purchased from the hydrogen station 31. For this reason, the energy operations planning unit 20 is configured to be able to acquire the amount and price information of electricity and hydrogen that can be purchased. The energy operations planning unit 20 may create an energy operations plan to purchase electricity and / or hydrogen when the purchase price is low, and store the purchased electricity and / or electricity generated from the purchased hydrogen in the storage battery 215.

[0040] The energy operations plan includes a purchasing plan for electricity and hydrogen for each time period within a predetermined period. The energy operations planning unit 20 may create an energy operations plan, for example, to suppress the purchase of electricity during peak hours of electricity demand when the price of grid power from the first power system 41 is high, and to purchase grid power during times such as the nighttime when the price of grid power is low. The energy operations planning unit 20 may create an operations plan to purchase hydrogen when it is determined that the unit price of electricity that can be generated from hydrogen is lower than the unit price of grid power from the first power system 41.

[0041] The energy operations planning unit 20 creates an energy operations plan for a predetermined period at a predetermined timing. For example, the energy operations planning unit 20 creates an energy operations plan for a predetermined period by a predetermined date in order to reserve power to be purchased from the power market. For example, the energy operations planning unit 20 creates an energy operations plan for one year or one month by the same day of the previous year or month. For example, the energy operations planning unit 20 creates an energy operations plan for one day by the morning of the previous day. The energy operations planning unit 20 may revise the created energy operations plan as needed based on the latest information on weather, temperature, traffic information, and the like.

[0042] The energy management planning unit 20 can receive information on the amount of hydrogen supplied by the hydrogen station 31 and the unit price of hydrogen from the information processing device 10. The energy management planning unit 20 can update the energy management plan based on this information.

[0043] The energy operations planning unit 202 creates an energy operations plan in accordance with various constraint conditions. For example, the operator of the community EMS 20 may promise in advance to residents or businesses in the community the ratio of CO2-free electricity to be supplied. In this case, the energy operations planning unit 20 determines the ratio of electricity to be purchased, with the constraint condition that the ratio of CO2-free electricity must be equal to or greater than the promised ratio. The energy operations planning unit 202 creates an energy operations plan to optimize a predetermined objective variable while satisfying the constraint conditions. For example, the predetermined objective variable is the cost associated with procuring electricity to be sold to the electricity consumer 22. The energy operations planning unit 20 may create an energy operations plan to minimize this cost.

[0044] The hydrogen consumption planning unit 203 creates a hydrogen consumption plan that indicates the consumption amount of hydrogen used for power generation in the fuel cell 216 for each time period, based on the energy operation plan created by the energy operation planning unit 202. The hydrogen consumption planning unit 203 transmits the created hydrogen consumption plan to the information processing device 10.

[0045] After the hydrogen consumption planning unit 203 transmits the hydrogen consumption plan to the information processing device 10, the energy operation planning unit 202 may receive recommended values ​​for the hydrogen supply amount and supply price from the information processing device 10. The energy operation planning unit 202 further adjusts the energy operation plan based on this information. Based on the adjusted energy operation plan, the hydrogen consumption planning unit 203 creates a new hydrogen consumption plan and transmits it to the information processing device 10. When the hydrogen purchase amount and purchase price in the energy operation plan match the hydrogen sales amount and sales price of the hydrogen station EMS 30 in the information processing device 10, the energy operation plan at that time is finalized.

[0046] The power trading unit 204 reserves the purchase of power from the first power system 41 by a predetermined date based on the energy operation plan created by the energy operation planning unit 202. Furthermore, when the energy operation planning unit 202 modifies the energy operation plan, the power trading unit 204 changes the amount of power to be purchased in accordance with the content of the modification.

[0047] (Hydrogen station) As shown in FIG. 5, the hydrogen station 31 includes a hydrogen production device 311, a compressor 312, a pressure accumulator 313, a dispenser 314, and a CO2-free power generation facility 315.

[0048] The hydrogen production device 311 is a device that produces hydrogen. Methods for producing hydrogen include a method for separating hydrogen from fossil fuels such as petroleum and natural gas, and a method for producing hydrogen by electrolyzing water. In the hydrogen station 31 of one embodiment shown in FIG. 5, the hydrogen production device 311 is a device that produces hydrogen by electrolyzing water using electricity generated by a CO2-free power generation facility 315 or system electricity from the second power grid 42. Hydrogen produced only from CO2-free electricity is called CO2-free hydrogen or green hydrogen. In order to produce CO2-free hydrogen, the hydrogen station 31 may purchase all electricity from the second power grid 42 as CO2-free electricity.

[0049] The compressor 312 is a device that compresses the hydrogen produced by the hydrogen production device 311 to a predetermined pressure. The predetermined pressure is, for example, 700 to 800 atmospheres. The compressor 312 includes a mechanical compressor and an electrochemical compressor.

[0050] The pressure accumulator 313 is a container that temporarily stores the hydrogen compressed by the compressor 312 in a compressed state at high pressure for filling the fuel cell vehicle 321 or the like.

[0051] The dispenser 314 is a device that fills the fuel cell vehicle 321 with high-pressure hydrogen. The dispenser 314 monitors and controls the flow rate and temperature of hydrogen so that hydrogen can be safely filled.

[0052] The CO2-free power generation facility 315 is a power generation facility that does not generate greenhouse gases such as carbon dioxide, similar to the CO2-free power generation facility 212 of the energy resource 21. In the present embodiment, the CO2-free power generation facility 315 will be described below as a solar power generation facility. When the amount of power generated by the CO2-free power generation facility 212 is large, the hydrogen station 31 may preferentially use the power generated by the CO2-free power generation facility 212 and supplementarily use the power from the second power system 42.

[0053] The hydrogen station 31 supplies the produced hydrogen to fuel cell vehicles 321, which are hydrogen consumers 32. The hydrogen station 31 may also fill hydrogen containers 322 with the produced hydrogen and transport it to other locations. Other locations include, for example, off-site hydrogen stations that do not have hydrogen production facilities. The hydrogen station 31 can also supply surplus hydrogen to fuel cells 216 of the energy resources 21 within the community via a hydrogen supply line 33.

[0054] (Hydrogen station EMS) As shown in FIG. 6 , the hydrogen station EMS 30 includes an FCV operation prediction unit 301, an FCV hydrogen demand prediction unit 302, a PV power generation prediction unit 303, and a hydrogen production planning unit 304.

[0055] The FCV operation prediction unit 301 predicts the operation of fuel cell vehicles 321 that may be filled with hydrogen at the hydrogen station 30. For example, some fuel cell vehicles 321 may be registered as members of the hydrogen station EMS 30 as users of the hydrogen station EMS 30 in order to receive a supply of hydrogen. Drivers who are members may notify the hydrogen station EMS 30 of the operation schedule of the fuel cell vehicles 321 in advance. The FCV operation prediction unit 301 may also obtain past operation data of the fuel cell vehicles 321, and predict the operation of the fuel cell vehicles 321 in a predetermined period based on the operation records of the fuel cell vehicles 321 on the same date of each month or the same day of the week. The FCV operation prediction unit 301 may predict the number of fuel cell vehicles 321 that will be filled with hydrogen at the hydrogen station 30 in a predetermined period.

[0056] The FCV hydrogen demand prediction unit 302 predicts the amount of hydrogen demanded by the fuel cell vehicle 321 based on the operation of the fuel cell vehicle 321 predicted by the FCV operation prediction unit 301 .

[0057] The PV power generation prediction unit 303 predicts the amount of power generated by the CO2-free power generation equipment 315 of the hydrogen station 31. For example, the PV power generation prediction unit 303 may have information on the average amount of power generated by solar power generation for each time of year. The PV power generation prediction unit 303 may be configured to be able to acquire meteorological information such as temperature and weather from an external weather information provider. The PV power generation prediction unit 303 may predict the amount of power generated by solar power generation based on the predicted weather.

[0058] The hydrogen production planning unit 304 creates a hydrogen production plan for a predetermined period based on the hydrogen demand forecast for the fuel cell vehicle 321 predicted by the FCV hydrogen demand forecasting unit 302 and the amount of solar power generation predicted by the PV power generation forecasting unit 303. The hydrogen production plan is a plan that specifies what means to use and when and how much hydrogen to produce. The hydrogen production planning unit 304 may create a hydrogen production plan assuming that hydrogen will be provided to the community energy resource 21 if surplus hydrogen is produced from the predicted amount of power generation. The hydrogen production planning unit 304 may create a hydrogen production plan taking into account information such as the operating history, maintenance plan, and maintenance management costs of the hydrogen station 31. The hydrogen production planning unit 304 may take into account the amount of hydrogen stored in the pressure accumulator 313, etc.

[0059] The hydrogen production planning unit 304 calculates the amount of power required to produce the amount of hydrogen predicted by the FCV hydrogen demand prediction unit 302. If the amount of power generation predicted by the PV power generation prediction unit 303 is greater than the amount of power required to produce the amount of hydrogen according to the demand prediction, the hydrogen production planning unit 304 may produce hydrogen using only the power generated by the CO2-free power generation facility 212. If the amount of power generation predicted by the PV power generation prediction unit 303 is less than the amount of power required to produce the amount of hydrogen according to the demand prediction, the hydrogen production planning unit 304 may produce hydrogen using a supply of CO2-free power from the second power system 42 in addition to the power generated by the CO2-free power generation facility 212.

[0060] The hydrogen production planning unit 304 transmits a hydrogen supply plan including planned values ​​of the hydrogen sales volume and hydrogen sales unit price for a predetermined period to the information processing device 10. The hydrogen supply plan is a plan that specifies the conditions and methods for providing the produced hydrogen. The hydrogen supply plan is the second information. After transmitting the hydrogen supply plan, the hydrogen production planning unit 304 may receive information on the recommended supply volume and supply unit price of hydrogen to be provided to the community's energy resource 21, and / or information on the production volume of hydrogen, from the information processing device 10. The hydrogen production planning unit 304 further adjusts the hydrogen supply plan and the hydrogen production plan based on this information. The hydrogen production planning unit 304 performs a process of transmitting the adjusted hydrogen supply plan to the information processing device 10 again. When the hydrogen sales volume and sales unit price in the hydrogen supply plan match the hydrogen purchase volume and purchase unit price of hydrogen in the information processing device 10, the current hydrogen supply plan is finalized.

[0061] The hydrogen production planning unit 304 instructs the hydrogen station 31 to produce hydrogen at the appropriate time. In accordance with the hydrogen supply plan, the hydrogen production planning unit 304 instructs the hydrogen station 31 and the hydrogen supply line 33 to supply hydrogen to the fuel cell 216 included in the community's energy resource 21 at the appropriate time.

[0062] (Hydrogen supply line) 7, the hydrogen supply line 33 includes a buffer tank 331 and a pressure regulator 332 provided on a pipeline between the hydrogen station 31 and the energy resource 21. The buffer tank 331 temporarily stores hydrogen to be supplied to the fuel cell 216 of the energy resource 21. The community EMS 20 and the hydrogen station EMS 30 can acquire the amount of hydrogen stored in the buffer tank 331. The pressure regulator 332 sends the hydrogen stored in the buffer tank 331 to the fuel cell 216 in the energy resource 21 of the community. The hydrogen supply line 33 supplies a predetermined amount of hydrogen to the fuel cell 216 of the energy resource 21 at a predetermined time by adjusting the pressure regulator 332.

[0063] (Energy trading methods) Next, the procedure for determining the supply amount and supply price of hydrogen supplied from the hydrogen station 31 to the energy resource 21 in the energy trading system 1 will be described with reference to Fig. 8. In Fig. 8, the procedure executed by the community EMS 20 is designated as steps S101 to S107. The procedure executed by the hydrogen station EMS 30 is designated as steps S201 to S207. The procedure executed by the information processing device 10 is designated as steps S301 to S304. The community EMS 20 and the hydrogen station EMS 30 can each execute processing individually.

[0064] First, the community EMS 20 acquires various types of data (step S101). The data acquired by the community EMS 20 includes calendar information, information on past power usage records, event information within the community, and meteorological information such as temperature and weather. The data acquired by the community EMS 20 may include information on the amount of hydrogen remaining in the buffer tank 331 of the hydrogen supply line 33.

[0065] The community EMS 20 makes various predictions based on the acquired data in the demand prediction unit 201 (step S102). First, the community EMS 20 predicts the power demand in the community for a predetermined period in the energy operation planning unit 202. The community EMS 20 also predicts the amount of power generated by the CO2-free power generation facility 212 based on meteorological information, etc. Furthermore, the community EMS 20 predicts the market price of power that can be purchased from the first power system 41 for a predetermined period.

[0066] The community EMS 20 sets constraints on the amount and unit price of hydrogen to be consumed in the energy operation planning unit 202 based on the prediction made in step S102 (step S103). For example, when the hydrogen supplied from the hydrogen station 31 is CO2-free hydrogen, the community EMS 20 may set a lower limit of the amount of hydrogen consumed so that the CO2-free power ratio of the power consumed in the community exceeds a target value. For example, the community EMS 20 may set an upper limit of the amount of hydrogen consumed within a range in which the storage battery 215 can store the electricity generated by the fuel cell 216 using hydrogen. The community EMS 20 may set an upper limit of the unit price of hydrogen to be consumed so that the unit price of the power generated by the fuel cell 216 using hydrogen is lower than the unit price of the power that can be purchased from the first power system 41. In addition to the above, the community EMS 20 can set constraints on the amount and unit price of hydrogen to be consumed in accordance with various conditions.

[0067] The community EMS 20 performs optimization calculations for power operation for a certain period in the energy operation planning unit 202 under the conditions set in step S103 (step S104). The certain period may include various periods such as one year, one month, one week, and one day, starting from the present. That is, the community EMS 20 may perform optimization calculations for the long term in years, the medium term in months, and the short term in days. When performing long-term optimization calculations, the community EMS 20 may perform optimization including changes to the contract details with the first power system 41. When performing short-term optimization calculations, the community EMS 20 may perform optimization calculations based on the price and purchase conditions of the system power contracted with the first power system 41.

[0068] The community EMS 20 can set various variables as optimization objectives. For example, the community EMS 20 may set the optimization objective to minimize the sum of all costs of the electric power business that supplies power to the community. All costs of the electric power business include the cost of fuel for power generation including hydrogen, the cost of purchasing grid power, the cost of purchasing power from energy resources 21 owned by other companies, and all costs such as the construction, maintenance and operation costs of the energy resources 21 when the energy resources 21 are owned by the community.

[0069] The purpose of optimization is not limited to minimizing the cost of the power business. For example, the community EMS 20 may set a constraint in step S103 to keep the total cost of the power business below a predetermined amount, and set an objective in step S104 to maximize the CO2-free electricity ratio.

[0070] As a result of the optimization calculation, the community EMS 20 determines an energy operation plan indicating when and at what ratio each power source is to be used and how much power is to be supplied. The power sources include the thermal power generation facility 111, the CO2-free power generation facility 212, the storage battery 215, the fuel cell 216, and the first power system 41. The energy operation plan includes a plan for suppressing charging to the electric vehicle 214 and suppressing power supply to the heat source device 213, as necessary. At least a part of a longer-term energy operation plan that was set in the past may be reviewed based on the shorter-term energy operation plan.

[0071] In the optimization calculation in step S104, conditions such as the unit price of hydrogen purchased from the hydrogen station 31 and the amount that can be purchased are not yet determined, so the energy operation plan may be determined using the hydrogen purchasing conditions as variables.

[0072] The community EMS 20 determines a matrix of a hydrogen consumption plan based on the energy operation plan determined in step S104 (step S105). The matrix of the hydrogen consumption plan is the first information. The matrix of the hydrogen consumption plan is data in a matrix format that includes at least three variables as elements: the purchase amount, purchase time, and purchase price of hydrogen to be purchased by the community EMS 20. The data for each element may have a range rather than a single value. The matrix of the hydrogen consumption plan indicates the conditions for the community EMS 20 to purchase hydrogen. The community EMS 20 transmits the determined matrix of the hydrogen consumption plan to the information processing device 10.

[0073] Next, a description will be given of the processing of steps S201 to S205 in the hydrogen station EMS 30. The processing of steps S201 to S205 may be executed independently of the processing of steps S101 to S105 in the community EMS 20.

[0074] First, the hydrogen station EMS 30 acquires various data (step S201). The data acquired by the hydrogen station EMS 30 includes meteorological information such as temperature and weather, operation prediction data for many fuel cell vehicles 321, data on past electricity market prices, and operation records and maintenance plans for the facilities of the hydrogen station 31. The operation prediction data for the fuel cell vehicle 321 may be predicted by the FCV operation prediction unit 301 from the operation schedule of the registered fuel cell vehicle 321, as well as the weather, date, day of the week, etc.

[0075] The hydrogen station EMS 30 makes various predictions based on the data acquired in step S201 (step S202). First, the hydrogen station EMS 30 predicts the hydrogen demand from the fuel cell vehicle 321 in the FCV hydrogen demand prediction unit 302. The hydrogen station EMS 30 also predicts the amount of power generated by the CO2-free power generation equipment 315 of the hydrogen station 31 in the PV power generation prediction unit 303. Furthermore, the hydrogen station EMS 30 predicts the market price of electricity that can be purchased from the second power system 42 for a specified period of time.

[0076] The hydrogen station EMS 30 sets constraints on the amount and unit price of hydrogen that can be supplied based on the prediction made in step S202 in the hydrogen production planning unit 304 (step S203). For example, if it is estimated that there will be a surplus of hydrogen produced by the CO2-free power generation facility 212 of the hydrogen station 31, the hydrogen station EMS 30 may set the sum of the surplus hydrogen and the hydrogen stored in the accumulator 313 and the buffer tank 331 as the upper limit of the amount of hydrogen that can be sold.

[0077] Furthermore, the hydrogen station EMS 30 may set a lower limit on the unit price of hydrogen to be supplied based on all costs related to the construction, operation, maintenance, etc. of the hydrogen station 31. The hydrogen station EMS 30 may set a lower limit on the unit price of hydrogen by adding a target profit margin to the production cost per unit amount of hydrogen calculated from all of the above-mentioned costs. In addition to the above, the hydrogen station EMS 30 may set constraints on the amount of hydrogen to be provided and the unit price of hydrogen in accordance with various conditions.

[0078] The hydrogen station EMS 30 performs optimization calculations for hydrogen production at the hydrogen station 31 for a certain period of time under the conditions set in step S203 in the hydrogen production planning unit 304 (step S204). The certain period is the same period as the period for which the optimization calculations were performed in step S104 in the community EMS 20. The hydrogen station EMS 30 can set various variables as optimization objectives. For example, the hydrogen station EMS 30 may set an optimization objective to maximize the profit from hydrogen sales totaled over the entire period from construction to decommissioning of the hydrogen station EMS 30.

[0079] The optimization objective is not limited to maximizing the profit from the sale of hydrogen by the hydrogen station 31. The hydrogen station EMS 30 may set various variables as the optimization objective. For example, the hydrogen station EMS 30 may set the optimization objective to maximize the operation rate of the hydrogen station 31.

[0080] As a result of the optimization calculation, the hydrogen station EMS 30 determines a hydrogen production plan. The hydrogen production plan includes information indicating when and in what ratio the CO2-free electricity from the CO2-free power generation facility 212 and the electricity supplied from the second power system 42 will be used to produce hydrogen.

[0081] In the optimization calculation of step S204, the conditions of the supply amount and unit price of hydrogen to be supplied to the community's energy resource 21 are undetermined, so the hydrogen production plan may be determined using the hydrogen supply conditions as variables. For example, if the supply amount of hydrogen is large and the unit price of supply is high, the hydrogen station 31 can produce a large amount of hydrogen even if the cost of the electricity used is high. If the supply amount of hydrogen is large but the unit price of supply is low, the hydrogen station 31 produces hydrogen using electricity with a cost that is commensurate with the price, and so may be able to produce only a small amount of hydrogen.

[0082] The hydrogen station EMS30 determines a matrix of a hydrogen supply plan for the fuel cell 216 based on the hydrogen production plan determined in step S204 (step S205). The hydrogen supply plan matrix is ​​the second information. The hydrogen supply plan matrix is ​​data in a matrix format that includes at least three variables as elements: the sales volume, sales time, and sales price of hydrogen supplied by the hydrogen station EMS30. The data for each element may have a range rather than a single value. The hydrogen supply plan matrix indicates the conditions under which the hydrogen station EMS30 sells hydrogen. The hydrogen station EMS30 transmits the determined hydrogen supply plan matrix to the information processing device 10.

[0083] In step S301, the information processing device 10 acquires a matrix (first information) of a hydrogen consumption plan from the community EMS 20. Also, in step S301, the information processing device 10 acquires a matrix (second information) of a hydrogen supply plan from the hydrogen station EMS 30.

[0084] The information processing device 10 compares the hydrogen consumption plan acquired from the community EMS 20 with the hydrogen supply plan acquired from the hydrogen station EMS 30. The information processing device 10 determines whether the hydrogen purchase amount and hydrogen purchase price in the hydrogen consumption plan at least partially match the hydrogen sales amount and hydrogen sales price in the hydrogen supply plan (step S302).

[0085] If the hydrogen purchase amount and hydrogen purchase price in the hydrogen consumption plan match the hydrogen sales amount and hydrogen sales price in the hydrogen supply plan (step S302: Yes), the hydrogen supply amount and supply price are determined to match. The hydrogen supply amount and supply price may be determined as time-series data that changes with the scheduled supply time. The information processing device 10 transmits information on the determined hydrogen supply amount and supply price to the community EMS 20 and the hydrogen station EMS 30.

[0086] When the community EMS 20 receives the amount of hydrogen supply from the information processing device 10, it takes into consideration the amount of power generated by the fuel cell 216, which generates power using the hydrogen supply, and concludes or modifies a power purchase contract with the first power system 41 as necessary (step S106). The power purchase contract includes a contract to purchase power from the spot market. When the amount of power generated by the fuel cell 216 increases, the community EMS 20 can reduce the expensive purchase of power from the first power system 41.

[0087] The community EMS 20 also determines an operation plan to be issued to each energy resource 21, taking into consideration the amount of power generated by the fuel cell 216 (step S107). The operation plan includes the operation time and power generation amount of the thermal power generation facility 211 and the CO2-free power generation facility, and the amount of power stored in the storage battery 215 for each time period. Furthermore, the operation plan includes the power generation amount and operation time of the fuel cell 216.

[0088] Meanwhile, when the hydrogen station EMS 30 receives the amount of hydrogen supply from the information processing device 10, it takes into consideration the amount of hydrogen to be supplied to the community's energy resource 21 and concludes or modifies a power purchase contract with the second power system 42 as necessary (step S206).

[0089] The hydrogen station EMS 30 also determines a supply plan for hydrogen to be sold to hydrogen consumers 32, such as fuel cell vehicles 321, and the community (step S207).

[0090] Returning to step S302 in the information processing device 10, if the hydrogen purchase amount and hydrogen purchase price in the hydrogen consumption plan do not match the hydrogen sales amount and hydrogen sales price in the hydrogen supply plan (step S302: No), the information processing device 10 proceeds to the next step S303. In step S303, the information processing device 10 uses mathematical programming to find a solution for the supply amount and hydrogen unit price of hydrogen to be supplied from the hydrogen station 31 to the energy resource 21 (step S303).

[0091] The hydrogen consumption plan matrix and the hydrogen supply plan matrix are discrete values, and if there is no matching solution in step S302, there is a solution between the discrete values ​​of each matrix, so the information processing device 10 may search for this solution using linear programming.

[0092] The information processing device 10 calculates the supply amount, supply time, and unit price of hydrogen so as to reduce the cost of procuring electricity for the community compared to when hydrogen is not supplied, and to increase the profit from the sale of hydrogen produced by the hydrogen station 30. The supply amount and unit price of hydrogen can be set to a certain range of values ​​rather than a single value.

[0093] In addition, the information processing device 10 may calculate the amount of hydrogen supplied, the supply timing, and the supply price so as to minimize the total purchase cost of the electricity that the community EMS 20 purchases from the first power system 41 and the electricity that the hydrogen station EMS 30 purchases from the second power system 42.

[0094] Furthermore, the information processing device 10 may calculate the supply amount, supply time, and unit price of hydrogen using the hydrogen supply capacity of the hydrogen supply line 33 that supplies hydrogen from the hydrogen station 31 to the energy resource 21 as a constraint.

[0095] In addition to the above-mentioned method, the information processing device 10 may calculate the supply amount and supply price of hydrogen using various methods.

[0096] The information processing device 10 notifies the community EMS 20 and the hydrogen station EMS of the hydrogen supply amount and unit price determined in step S303 as recommended values ​​(step S304). The community EMS 20 re-executes the processes from step S103 onwards based on the received recommended values ​​of the hydrogen supply amount and unit price. The hydrogen station EMS 30 re-executes the processes from step S203 onwards based on the received recommended values ​​of the hydrogen supply amount and unit price. In steps S103 and S203, constraint conditions are set that are closer to the recommended values ​​of the hydrogen supply amount and unit price received from the community EMS 20.

[0097] Thereafter, the processes of steps S103 to S105 of the community EMS 20, steps S203 to S205 of the hydrogen station EMS 30, and steps S301 to S304 of the information processing device 10 are repeated. As the processes are repeated, the difference between the hydrogen purchase amount and hydrogen purchase price in the hydrogen consumption plan of the community EMS 20 and the hydrogen sales amount and hydrogen sales price in the hydrogen supply plan of the hydrogen station EMS 30 is narrowed. As a result, after the repeated calculations, the hydrogen supply amount and supply price are determined in step S302.

[0098] 8, if the hydrogen consumption plan and the hydrogen supply plan do not match in step 302 after a predetermined number of repeated calculations, the energy trading system 1 may stop the process. In this case, the information processing device 10 may determine that the hydrogen supply transaction has not been concluded.

[0099] As described above, in the energy trading system 1 of the present disclosure, the information processing device 10 acquires the planned values ​​of the hydrogen purchase amount and purchase price of the community EMS 20 (first information) and the planned values ​​of the hydrogen sales amount and sales price of the hydrogen station EMS 30 (second information). The information processing device 10 determines the supply amount and supply price of hydrogen to be supplied from the hydrogen station 31 to the energy resource 21, taking into consideration the first information and the second information. As a result, the determined supply amount and supply price of hydrogen reflect the status of the community EMS 20 and the hydrogen station EMS 30. In this way, in the embodiment of the present disclosure, the supply amount and supply price of hydrogen to the community energy resource 21 from the hydrogen station 31, which are independently operated and managed, can be adjusted. As a result, energy can be used effectively.

[0100] Furthermore, according to the present disclosure, it is possible to reduce the cost of power supply while satisfying requirements imposed on the community EMS 20, such as achieving a target value for the CO2-free power ratio. This enables the community EMS 20 to increase the profitability of the power business within the community while responding to the decarbonization demands of the power consumers 22 within the community.

[0101] Furthermore, the energy trading system 1 of the present disclosure provides a means for adjusting the hydrogen demand of the community's energy resource 21 and the hydrogen supply of the hydrogen station 31. This makes it possible to improve the operating rate of the hydrogen station 31 and reduce the amount of unused hydrogen that is discarded. As a result, it becomes possible to increase the overall profitability of the hydrogen station 31.

[0102] The present invention is not limited to the above-described embodiment, and many variations and modifications are possible. For example, the functions included in each means, step, etc. can be rearranged so as not to cause logical inconsistencies, and multiple means or steps can be combined into one or divided.

[0103] For example, the first energy management system is configured to treat a community such as a city or a region as a managed area. The managed area of ​​the present invention is not limited to a community. For example, the managed area may span multiple administrative districts or cities. The managed area may also be a redevelopment area containing one or multiple large buildings and facilities, or an area such as an industrial park.

[0104] In the above embodiment, hydrogen is traded between a single community and a single hydrogen station 31. However, the first energy management system and the second energy management system that trade hydrogen do not have to be in a one-to-one relationship. There may be multiple first energy management systems and / or multiple second energy management systems. The information processing device may perform a process to determine the supply amount and unit price of hydrogen between one or more first energy management systems and one or more second energy management systems.

[0105] In the above embodiment, hydrogen is transported from the hydrogen station 31 to the community's energy resource 21 (fuel cell 216) via the hydrogen supply line 33. However, hydrogen may be compressed and stored in a container and transported by a transportation vehicle, instead of through a pipeline. Also, in the above embodiment, electricity is generated from hydrogen using a fuel cell. However, the energy resource 21 may include other energy generation facilities that generate energy using hydrogen. The other energy generation facilities include, for example, hydrogen power generation facilities that burn hydrogen in a gas turbine or the like to extract electrical energy.

[0106] The method included in the present disclosure can be executed by a program. For example, the procedure executed by the information processing device 10 disclosed in FIG. 8 can be executed by a processor included in the control unit 12 of the information processing device 10 according to a program. Such a program can be stored in a non-transitory computer-readable medium. Examples of the non-transitory computer-readable medium include, but are not limited to, a hard disk, a RAM, a ROM, a flash memory, a CD-ROM, an optical storage device, a magnetic storage device, and the like. [Explanation of symbols]

[0107] 1. Energy Trading System 10. Information processing device 11 Communication unit (first acquisition unit, second acquisition unit) 12 Control section 13 Storage section 20 Community EMS (First Energy Management System) 201 Demand Forecasting Department 202 Energy Operation Planning Department 203 Hydrogen Consumption Planning Department 204 Electricity Trading Department 21 Energy Resources 210 Power grid 211 Thermal power generation facilities 212 CO2-free power generation facilities 213 Heat source equipment 214 Electric Vehicles 215 Storage battery 216 Fuel Cell 22 Electricity consumers 221 Home 222 Companies 30 Hydrogen Station EMS (Second Energy Management System) 31 Hydrogen station (hydrogen production facility) 311 Hydrogen production equipment 312 Compressor 313 Accumulator 314 Dispenser 315 CO2-free power generation facilities 32 Hydrogen consumers 321 Fuel cell vehicle 322 Hydrogen container 33 Hydrogen Supply Line 331 Buffer Tank 332 Pressure Regulating Device 41 First Power System 42 Second Power System

Claims

1. An energy trading method executed by an information processing device, comprising: acquiring first information including a planned value of a hydrogen purchase amount and a hydrogen purchase price from a first energy management system that manages energy resources in a management target area; acquiring second information including a planned value of a hydrogen sales amount and a hydrogen sales price from a second energy management system that manages the hydrogen production facility; A supply amount and a unit price of hydrogen to be supplied from the hydrogen production facility to the energy resource are determined based on the first information and the second information.

1. A method for trading energy, comprising: the first energy management system acquires a remaining amount of hydrogen in a buffer tank for temporarily storing hydrogen, the buffer tank being provided on a hydrogen supply line that supplies hydrogen to the energy resource in the area under management of the first energy management system from the hydrogen production facility managed by the second energy management system, and generates the first information taking the remaining amount of hydrogen into consideration; The second energy management system generates the second information taking into account the remaining amount of hydrogen in the buffer tank. Energy trading methods.

2. 2. The energy trading method according to claim 1, wherein the first information is matrix-format data including planned values ​​for a purchase amount, purchase time, and purchase price of hydrogen as elements, and the second information is matrix-format data including planned values ​​for a sales amount, sales time, and sales price of hydrogen as elements.

3. The energy trading method according to claim 1 or 2, wherein, when the first information and the second information match, the amount, supply timing, and supply price of hydrogen supplied from the hydrogen production equipment to the managed area are determined based on the matched contents.

4. 4. The energy trading method according to claim 1, further comprising: after determining the amount of hydrogen to be supplied, creating an operation plan including the amount of power generated and operating times of a fuel cell included in the energy resources managed by the first energy management system, the fuel cell receiving the supply of hydrogen and generating power, and transmitting the operation plan to the first energy management system.

5. 5. The energy trading method according to claim 1, further comprising: determining, when the first information and the second information do not match, recommended values ​​for the amount, timing, and unit price of the hydrogen to be supplied; transmitting the determined recommended values ​​to the first energy management system and the second energy management system; obtaining updated first information from the first energy management system; and obtaining updated second information from the second energy management system.

6. 6. The energy trading method according to claim 5, wherein the first energy management system is configured to purchase at least a portion of the electricity to be supplied to the managed area from a first power system, and the second energy management system is configured to purchase at least a portion of the electricity to be supplied to the hydrogen production facility from a second power system, and the information processing device determines the supply amount, the supply timing, and the unit price of the hydrogen so as to minimize a total purchase cost of electricity from the first power system and the second power system over a predetermined period of time.

7. 6. The energy trading method according to claim 5, wherein the recommended values ​​of the supply amount, the supply timing, and the unit price of the hydrogen are determined so as to reduce costs associated with procuring electricity to be supplied to the area to be managed and to increase profits associated with the sale of hydrogen produced by the hydrogen production facility.

8. The energy trading method described in claim 5, wherein the hydrogen supply capacity of the hydrogen supply line is used as a constraint condition to determine the recommended values ​​of the supply amount, supply timing, and unit price of the hydrogen.

9. a first acquisition unit that acquires first information including a planned value of a hydrogen purchase amount and a hydrogen purchase price from a first energy management system that manages energy resources in a management target area; a second acquisition unit that acquires second information including planned values ​​of the hydrogen sales amount and the hydrogen sales price from a second energy management system that manages the hydrogen production facility; a control unit that determines an amount of hydrogen to be supplied from the hydrogen production facility to the energy resource based on the first information and the second information; In an information processing device comprising: the first energy management system acquires a remaining amount of hydrogen in a buffer tank for temporarily storing hydrogen, the buffer tank being provided on a hydrogen supply line for supplying hydrogen from the hydrogen production facility managed by the second energy management system to the energy resource in the area managed by the first energy management system, and generates the first information taking the remaining amount of hydrogen into consideration; The second energy management system generates the second information in consideration of the remaining amount of hydrogen in the buffer tank. Information processing device.

10. 10. The information processing device according to claim 9, wherein the first information is matrix-formatted data including planned values ​​for the purchase amount, purchase time, and purchase price of hydrogen as elements, and the second information is matrix-formatted data including planned values ​​for the sales amount, sales time, and sales price of hydrogen as elements.

11. The information processing device according to claim 9 or 10, wherein when the first information and the second information match, the control unit determines the amount, supply timing, and supply price of hydrogen from the hydrogen production equipment to the managed area based on the matching content.

12. 12. The information processing device according to claim 9, wherein, after determining the amount of hydrogen to be supplied, the control unit creates an operation plan including the amount of power generation and operating times of a fuel cell, which is included in the energy resources managed by the first energy management system and generates power by receiving the supply of hydrogen, and transmits the operation plan to the first energy management system.

13. 13. The information processing device according to claim 9, wherein, when the first information and the second information do not match, the control unit determines recommended values ​​for the amount, supply timing, and unit price of the hydrogen, transmits the determined recommended values ​​to the first energy management system and the second energy management system, obtains the updated first information from the first energy management system, and obtains the updated second information from the second energy management system.

14. 14. The information processing device according to claim 13, wherein the first energy management system is configured to purchase at least a portion of the electricity to be supplied to the managed area from a first power system, and the second energy management system is configured to purchase at least a portion of the electricity to be supplied to the hydrogen production equipment from a second power system, and the control unit determines the supply amount, the supply timing, and the unit price of the hydrogen so as to minimize the total purchase cost of electricity from the first power system and the second power system over a predetermined period of time.

15. The information processing device according to claim 13, wherein the control unit determines the recommended values ​​of the supply amount, the supply timing, and the unit price of the hydrogen so as to reduce costs associated with procuring electricity to be supplied to the area to be managed and to increase profits associated with the sale of hydrogen produced by the hydrogen production equipment.

16. The information processing device according to claim 13 , wherein the control unit determines the recommended values ​​of the supply amount, the supply timing, and the unit price of the hydrogen using a hydrogen supply capacity of the hydrogen supply line as a constraint condition.

17. An information processing device; a first energy management system that manages energy resources in a management target area, the first energy management system transmitting first information including a planned value of a hydrogen purchase amount and a hydrogen purchase price to the information processing device; a second energy management system that manages a hydrogen production facility and transmits second information including a planned value of a hydrogen sales amount and a hydrogen sales unit price to the information processing device; Equipped with The information processing device determines a supply amount of hydrogen to be supplied from the hydrogen production facility to the energy resource based on the first information and the second information. In the energy trading system, the first energy management system acquires a remaining amount of hydrogen in a buffer tank for temporarily storing hydrogen, the buffer tank being provided on a hydrogen supply line that supplies hydrogen to the energy resource in the area under management of the first energy management system from the hydrogen production facility managed by the second energy management system, and generates the first information taking the remaining amount of hydrogen into consideration; The second energy management system generates the second information taking into account the remaining amount of hydrogen in the buffer tank. Energy trading system.

18. 18. The energy trading system of claim 17, wherein the first information is matrix-format data including planned values ​​for the purchase amount, purchase time, and purchase price of hydrogen as elements, and the second information is matrix-format data including planned values ​​for the sales amount, sales time, and sales price of hydrogen as elements.

19. The energy trading system of claim 17 or 18, wherein when the first information and the second information match, the information processing device determines the amount, supply timing, and supply price of hydrogen from the hydrogen production equipment to the managed area based on the matching content.

20. 20. The energy trading system according to claim 17, wherein, after determining the amount of hydrogen to be supplied, the information processing device creates an operation plan including the amount of power generation and operating times of a fuel cell, which is included in the energy resources managed by the first energy management system and generates power by receiving the supply of hydrogen, and transmits the operation plan to the first energy management system.

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