Energy trading system

Abstract

To make electric power to supply to a damaged area obtainable when a disaster is happening, by using a server and an agent in a P2P electric power trade market.SOLUTION: A trade market server 3 receives a bid (bid information n1 to n4) with the attribute set to "contribution" through an agent when the server receives the bid information n0 in which the purchase is set to "buy", the price is set to "0 yen", and the attribute is set to "contribution" from a B pallet management server. The trade marker server 3 makes an agreement as long as it can supply the power bid for by an agent, for free, to a damaged area.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present disclosure relates to an energy trading system. [Background technology]

[0002] JP 2020-114051 A (Patent Document 1) proposes a mechanism in which, when a disaster occurs, an electric vehicle capable of moving by autonomous driving provides electricity to evacuation shelters, etc. In this Patent Document 1, a specific facility is assigned to an electric vehicle capable of supplying power to the outside, and location information of the assigned specific facility is transmitted to the electric vehicle, so that the electric vehicle provides electricity to the specific facility. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-114051 A Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 discloses that electricity will be supplied to facilities that require electricity during a disaster, such as evacuation shelters, but does not disclose how electricity will be procured to be supplied to disaster-stricken areas.

[0005] In recent years, with the liberalization of the power market, the introduction of P2P (Peer to Peer) energy trading, in which individuals or corporations with power resources directly trade electricity with other individuals or corporations, is being considered. Since the P2P energy trading market is a direct energy trade between the electricity supplier and the electricity consumer, it consists of a server that manages the energy trading market and an agent that allows users participating in the energy trading market to make bids.

[0006] The present disclosure aims to provide an energy trading system that uses a server and an agent in a P2P energy trading market to enable procurement of electricity to be supplied to disaster-stricken areas in the event of a disaster. [Means for solving the problem]

[0007] The energy trading system disclosed herein includes a server that manages an energy trading market in which energy trading is carried out directly between the electricity supplier and the electricity demander, and an agent that allows users participating in the energy trading market to place bids. The server includes a disaster detection unit that detects the occurrence of a disaster, and a disaster management unit that, when the occurrence of a disaster is detected, accepts, via the agent, bids for donated power, which is electricity to be donated to a disaster-stricken area.

[0008] According to this configuration, a user can use the agent to place a bid in an energy trading market (P2P energy trading market) where energy trading is carried out directly between the energy supplier and the energy demander, thereby enabling direct energy trading between individuals and corporations. When the disaster detection unit detects the occurrence of a disaster, the disaster management unit of the server managing the P2P energy trading market accepts bids for donated energy, which is energy to be donated to disaster-stricken areas, via the agent. Donations of energy can be made using the server managing the P2P energy trading market and the agent, and the P2P energy trading market can be utilized to procure energy to be supplied to disaster-stricken areas. Effect of the Invention

[0009] According to the present disclosure, by using a server and an agent in a P2P energy trading market, it is possible to provide an energy trading system that makes it possible to procure electricity to be supplied to disaster-stricken areas when a disaster occurs. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram for explaining an example of an energy trading system according to an embodiment. [Diagram 2] FIG. 1 is a diagram illustrating an example of a P2P energy trading market. [Diagram 3] FIG. 1 is a diagram illustrating an example of a bid in a general trading market for P2P energy trading. [Figure 4] FIG. 1 is a diagram illustrating an example of a bidding in a direct trading market for P2P energy trading. [Diagram 5] A diagram showing an example of the hardware configuration of an agent, a trading market server, and a B palette management server. [Figure 6] FIG. 4 is a diagram illustrating an example of resource information. [Figure 7] FIG. 13 is a diagram showing an example of bid information in resource information. [Figure 8] FIG. 11 is a diagram illustrating an example of agent information. [Figure 9] 1 is a block diagram showing functions executed by a trading market server to procure electricity to be supplied to a disaster-stricken area in the event of a disaster. [Figure 10] FIG. 1 is a diagram illustrating a bidding process for donating electricity to disaster-stricken areas. [Figure 11] 13 is a flowchart of a process for collecting electricity donations executed by the trading market server. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and their description will not be repeated.

[0012] <Electricity trading system configuration> Fig. 1 is a diagram for explaining an example of an energy trading system 1 according to the present embodiment. With reference to Fig. 1, the energy trading system 1 includes a trading market server 3, electric vehicles 5A-5E, charging / discharging facilities 6A-6H, a factory 7A, a company 7B, a commercial facility 7C, a residence 7D, a store 7E, an electric power company 9, a power transmission line network PL, and a communication network 10. The electric vehicles 5A-5E, the factory 7A, the company 7B, the commercial facility 7C, the residence 7D, and the store 7E are power resources in the energy trading system 1, and function as so-called prosumers. Each power resource is configured to be able to exchange power with other power resources via the power transmission line network PL or directly.

[0013] The number of electric vehicles and the number of charging / discharging facilities are not limited to the numbers shown in the figure. Furthermore, facilities such as the factory 7A are not limited to those shown in the figure. Furthermore, hereinafter, the electric vehicles 5A to 5E may be referred to as "electric vehicles 5" without distinction. Furthermore, the charging / discharging facilities 6A to 6H may be referred to as "charging / discharging facilities 6" without distinction. Furthermore, the factory 7A, the company 7B, the commercial facility 7C, the house 7D, and the store 7E may be referred to as "facilities 7" without distinction.

[0014] The electric vehicle 5 is an electric vehicle that can run using electric power stored in a battery. The electric vehicle 5 is electrically connected to a charging / discharging facility 6, and is configured so that the battery can be charged and discharged through the charging / discharging facility 6. The electric vehicle 5 may be, for example, an electric vehicle (BEV: Battery Electric Vehicle) or a plug-in hybrid vehicle (PHEV: Plug-in Hybrid Electric Vehicle). FIG. 1 shows an example in which the electric vehicle 5 is a BEV. The electric vehicle 5 is configured so that it can be electrically connected to the charging / discharging facility 6, and can exchange electric power with the power transmission network PL or a facility 7 through the charging / discharging facility 6.

[0015] The facility 7 is electrically connected to the power transmission network PL and can receive and transmit electric power to and from the power transmission network PL. The facility 7 is also electrically connected to the charging / discharging equipment 6 and can receive and transmit electric power to and from the electric vehicle 5 connected to the charging / discharging equipment 6. The facility 7 is equipped with a battery that stores electric power and is configured to enable charging and discharging of the battery via the power transmission network PL or the charging / discharging equipment 6.

[0016] The facility 7 further includes a photovoltaic power generation device (hereinafter also referred to as "PV" (Solar Photovoltaics)) 8. Specifically, a PV 8A is installed in the factory 7A, a PV 8B is installed in the company 7B, a PV 8C is installed in the commercial facility 7C, a PV 8D is installed in the house 7D, and a PV 8E is installed in the store 7E. The PV 8 is a device that generates electricity using sunlight, which is a type of renewable energy. The PV 8 includes a solar panel that generates electricity by the photoelectric effect, an inverter that boosts the voltage of the electricity generated by the solar panel, and the like. Note that instead of or in addition to the PV 8, a power generation device that generates electricity using renewable energy other than sunlight (for example, wind power, geothermal heat, biomass, etc.) may be installed in the facility 7. Note that, although FIG. 1 shows an example in which the PV 8 is installed on the roof of the facility 7, the PV 8 may be installed on the ground within the premises of the facility 7, and the installation manner is not particularly limited. The electricity generated by the PV 8 can be supplied to electricity consumers through the power grid PL or the charging and discharging equipment 6.

[0017] The charging / discharging equipment 6 is electrically connected to the power transmission line network PL or a facility 7. The charging / discharging equipment 6 includes a power cable. The charging / discharging equipment 6 can be electrically connected to the electric vehicle 5 via the power cable, and the electric vehicle 5 can receive and transmit power to and from the power transmission line network PL or the facility 7 via the charging / discharging equipment 6 to which it is connected.

[0018] The power company 9 manages a power plant (not shown). Electric power generated by the power plant is supplied to each facility 7 through a power transmission network PL (power grid), and can also be supplied to an electric vehicle 5A connected to charging / discharging facilities 6A to 6C.

[0019] Conventionally, electricity has been supplied to facilities 7 and electric vehicles 5 from power plants of electric power companies 9 through a power transmission network PL. With the recent liberalization of electricity and the spread of renewable energy generation technology, electricity trading is being considered not only between electric power companies 9 but also between individuals or corporations that have electricity resources. In the electricity trading system 1 according to this embodiment, electricity trading between individuals or corporations (each facility 7 or each electric vehicle 5), that is, P2P (Peer to Peer) electricity trading, can be performed. In P2P electricity trading, electricity trading is performed directly between the electricity supplier and the electricity demander.

[0020] The market server 3 provides a platform for carrying out P2P energy trading. The market server 3 is configured to be able to communicate with the electric vehicle 5, the charging / discharging equipment 6, and the facility 7 through a communication network 10. As will be described later in detail, a plurality of energy trading markets are formed in the market server 3. When the facility 7 or the electric vehicle 5 wishes to carry out P2P energy trading, the facility 7 or the electric vehicle 5 (more specifically, an agent (described later) that executes the energy trading of the facility 7 or the electric vehicle 5) specifies the energy trading market in which it wishes to carry out the energy trading and submits a bid to the market server 3, for example, with bidding conditions including the time period in which it wishes to buy and sell the energy, the amount of energy bought and sold per unit time period, and the trading price. The market server 3 issues an agreement for energy trading between a seller and a buyer who meet the bidding conditions by an arbitrary algorithm, and processes a bid for which no other party who meets the conditions is found as a non-contract. Note that "bidding" means the act of ordering an energy trade (purchase or sale), or the order itself. "Agreement" means the act of deciding to enter into a bid for electricity trading, or the decision itself.

[0021] FIG. 2 is a diagram showing a schematic diagram of an example of a P2P energy trading market. Referring to FIG. 2, in the P2P energy trading market, an "agent" that executes a bid on the P2P energy trading market plans and executes the bid, manages the agreement, creates a charge / discharge plan based on the agreement, and so on. Agents 2A-2K are provided for each facility 7 and electric vehicle 5. In the following, the agents 2A-2K may be referred to as "agent 2" without distinguishing between them. The agent 2 creates an energy trading plan (bidding plan) for the P2P energy trading market, and the agent 2 executes a bid on the P2P energy trading market (trading market server 3). Although not shown in the figure, when an electric power company 9 executes a bid on the P2P energy trading market, the agent 2 of the electric power company 9 executes the bid.

[0022] In the P2P energy trading market, there are a "general trading market" and a "direct trading market". In this embodiment, the general trading market and the direct trading market are formed in the trading market server 3. The general trading market is a market that handles trading of electricity transmitted through the power transmission line network PL, and an unspecified number of agents 2 can participate in the energy trading. In the general trading market, an agreement for energy trading is made (matching) according to any rule determined by an operator that manages the P2P energy trading market. As a matching rule, for example, when a seller's proposed price and a buyer's proposed price match in a predetermined unit time period, a transaction is made on a first-come, first-served basis. As another matching rule, a method of making a transaction at an appropriate price after first sorting out bids (orders) between sellers and buyers made in a unit time period is also possible.

[0023] Fig. 3 is a diagram for explaining an example of bidding in a general trading market for P2P energy trading. With reference to Fig. 3, in the general trading market, an unspecified number of sellers bid a pair (p, q) of a selling price and an amount of energy for each predetermined unit time slot (1, 2, ... n), while an unspecified number of buyers bid a pair (P, Q) of a purchase price and an amount of energy. Note that the unit time slot is a time span (e.g., 30 minutes) set in the general trading market. The trading of the amount of energy is carried out for each amount of energy (power x length of unit time slot) transmitted within the unit time slot.

[0024] Referring again to FIG. 2, the direct trading market is a market that handles trading of electricity transmitted from an electric vehicle 5 moving to a facility 7 without passing through a power grid PL, and only agents having an ID of the direct trading market can participate in the electricity trading. In the direct trading market, one market is formed for the facility 7 where the charging / discharging equipment 6 is installed. In the direct trading market, an agreement for electricity trading is made (matching) according to any rules that are independently determined by the operator of each market. As the matching rules, the above-mentioned method described for the general trading market can be adopted. In this embodiment, the trading market server 3 manages the general trading market and the direct trading market according to matching rules for each P2P energy trading market (general trading market and direct trading market), but a server equivalent to the trading market server 3 may be provided for each P2P energy trading market.

[0025] Fig. 4 is a diagram for explaining an example of bidding in a direct trading market for P2P energy trading. With reference to Fig. 4, in the direct trading market, a seller presents a pair (p, q) of a selling price and an amount of energy for each predetermined unit time slot (1, 2, ... n), and multiple buyers having IDs of the direct trading market bid a pair (P, Q) of a purchase price and an amount of energy. The unit time slot is a time span that is individually set in the direct trading market. The trading of the amount of energy is carried out for each amount of energy (power x length of unit time slot) transmitted within the unit time slot.

[0026] 1 again, the energy trading system 1 according to this embodiment includes a B pallet station 110 connected to the power transmission line network PL. The B pallet station 110 is a facility that mainly charges batteries mounted on the B pallets 111A to 111D. The B pallet station 110 includes a battery that stores power, and is configured to be capable of charging and discharging the battery through the power transmission line network PL.

[0027] The B pallets 111A-111D are vehicles equipped with batteries, which move to the locations of the facilities 7 and the electric vehicles 5 and supply electricity stored in the batteries to the facilities 7 and the electric vehicles 5. Below, the B pallets 111A-111D may be referred to as the "B pallet 111" without distinguishing between them. The battery equipped on the B pallet 111 can be connected to the charging / discharging equipment 6, and can also be charged and discharged via the charging / discharging equipment 6.

[0028] The B pallet management server 100 is configured to be able to communicate with the trading market server 3, the B pallet station 110, and the B pallet 111 through the communication network 10. The B pallet management server 100 manages the SOC (State Of Charge) of the battery mounted on the B pallet 111, the parking position of the B pallet 111, the charging and discharging of the B pallet station 110, and the like.

[0029] When a disaster occurs, it is conceivable that the B pallet 111 may be dispatched to a disaster area where the power grid has been cut off, to supply power to evacuation shelters and the like. In order to dispatch the B pallet 111 to the disaster area, it is necessary to charge the battery mounted on the B pallet 111. For this reason, it is desirable to establish a system for procuring power to be supplied to the disaster area (power to charge the battery mounted on the B pallet 111).

[0030] In the P2P energy trading market, as described above, the agent 2 submits a bid to the market server 3. The market server 3 then concludes the energy trade (matching) in accordance with matching rules for each P2P energy trading market (general trading market and direct trading market). In this embodiment, by utilizing the agent 2 and the market server 3 in the P2P energy trading market, it becomes possible to procure electricity to be supplied to disaster-stricken areas when a disaster occurs.

[0031] Fig. 5 shows an example of the hardware configuration of the agent 2, the trading market server 3 and the B pallet management server. Referring to Fig. 5, the agent 2 includes a processor 21, a memory 22, and a communication device 23. The agent 2 is provided for each facility 7 or electric vehicle 5 (prosumer). The agent 2 may be provided in the corresponding prosumer, or in a cloud capable of communicating with the corresponding prosumer. The agent 2 may also be configured by a mobile terminal connected to the corresponding prosumer by short-range wireless communication (Wi-Fi, Bluetooth, etc.).

[0032] The processor 21 is a computing entity (computer) that executes various processes by executing various programs. The processor 21 is composed of a central processing unit (CPU), a field-programmable gate array (FPGA), a graphics processing unit (GPU), etc.

[0033] The memory 22 stores programs and data for the processor 21 to execute various processes. The memory 22 is configured with storage media such as a read only memory (ROM) and a random access memory (RAM). The memory 22 stores an arithmetic program 25 and resource information 26.

[0034] The computing program 25 specifies the processing executed by the processor 21. For example, the computing program 25 includes a program for making a bid to the market server 3 for energy trading in the P2P energy trading market managed by the market server 3.

[0035] The resource information 26 includes information about the prosumer (for example, the factory 7A) corresponding to the agent 2, and in particular, information about the bid and contract for the electricity transaction.

[0036] Fig. 6 is a diagram showing an example of resource information 26. Fig. 6 shows, as an example, resource information 26 in agent 2 (business agent) of factory 7A. Referring to Fig. 6, resource information 26 includes an ID, type information, history information, SOC (State Of Charge) information, bidding information, contract information, a charge / discharge plan, and charge / discharge performance.

[0037] The ID includes identification information for identifying the prosumer (factory 7A in this example). The type information includes information related to the type of the prosumer. The information related to the type of the prosumer includes, for example, information for identifying a business operator, a house, an electric vehicle, etc. The history information includes information related to the past power usage history of the prosumer. The information related to the usage history may be divided, for example, by day of the week or by time period. The SOC information includes information related to the amount of power (storage amount) currently stored in the battery owned by the prosumer. The bidding information includes information related to a bidding currently being conducted. The contract information includes information related to a history of past contracts, and information for identifying whether or not the currently conducted bidding has been contracted. The charge / discharge plan includes information related to the charge / discharge plan of the prosumer based on the contract. The charge / discharge performance includes information related to the results of charging and discharging according to the charge / discharge plan.

[0038] FIG. 7 is a diagram showing an example of bid information in the resource information 26. The ID is identification information for identifying the prosumer and is the same information as the ID in the resource information 26. The bid ID is identification information for identifying this bid. The time is the start time of the electricity transaction. The buying and selling is a distinction between supply (selling) and demand (buying). The quantity is the amount of electricity being traded. The price is the buying and selling unit price per kWh. The attributes distinguish between trading on the general market and the direct market.

[0039] 5 again, the communication device 23 transmits and receives various data to and from the market trading server 3 through the communication network 10. When placing a bid in the P2P energy trading market, the agent 2 transmits the bidding information shown in FIG.

[0040] The market server 3 includes a processor 31, a memory 32, and a communication device 33. The market server 3 is a device that manages P2P energy trading between prosumers in the P2P energy trading market (the general trading market and the direct trading market), and executes processes related to energy trading.

[0041] The processor 31 is a computing entity (computer) that executes various processes by executing various programs. The processor 31 is configured with a CPU, an FPGA, a GPU, and the like.

[0042] The memory 32 stores programs and data for the processor 31 to execute various processes. The memory 32 is composed of storage media such as ROM and RAM. The memory 32 stores an arithmetic program 35 and agent information 36.

[0043] The calculation program 35 specifies the processing to be executed by the processor 31. For example, the calculation program 35 includes a program for executing a bidding process for accepting bids from a plurality of agents 2, and a contract process based on the bids. The contract process effects a contract for an electricity transaction between a seller and a buyer who meet the bidding conditions, and processes a bid for which no other party meeting the conditions is found as a non-contract.

[0044] The agent information 36 includes information about the agents 2 participating in the P2P energy trading market managed by the trading market server 3, and in particular includes information about the bids and agreements for energy trading for each agent 2.

[0045] Fig. 8 is a diagram showing an example of the agent information 36. Referring to Fig. 8, the agent information 36 includes an ID, type information, bid information, and contract information.

[0046] The ID includes identification information for identifying an agent 2 participating in the P2P energy trading market managed by the trading market server 3. The type information includes information on the type of prosumer, such as information for identifying an electric vehicle, a business operator, a house, etc. The bidding information includes information on the past bidding history of each agent 2 and information on the currently bidding. The contract information includes information on the past contract history of each agent 2 and information for identifying whether the currently bidding has been contracted or not.

[0047] The trading market server 3 uses the bidding information of each agent 2 received via the communication device 33 to effect an energy trading agreement between a seller and a buyer whose bidding conditions match, and treats bids for which no other party matching the conditions is found as no agreement.

[0048] 5, the B pallet management server 100 includes a processor 101, a memory 102, and a communication device 103. The B pallet management server 100 communicates with the B pallet 111 via the communication device 103, and manages the SOC, charge and discharge, etc. of the battery mounted on the B pallet 111, and formulates a driving plan for the B pallet 111. The B pallet management server 100 also manages the SOC of the B pallet station 110, and formulates a charge and discharge plan.

[0049] The processor 101 is a computing entity (computer) that executes various processes by executing various programs. The processor 101 is composed of a CPU, an FPGA, a GPU, etc. The memory 102 stores programs and data for the processor 101 to execute various processes. The memory 102 is composed of storage media such as a ROM and a RAM. The memory 102 stores a calculation program 105 and B palette information 106.

[0050] The calculation program 105 specifies the processing to be executed by the processor 101. For example, the calculation program 105 includes a program for monitoring and managing a plurality of B pallets 111, and a program for managing the B pallet station 110. The calculation program 105 also includes a program for creating bidding information, as shown in FIG.

[0051] The B pallet information includes, for each B pallet 111, information such as ID (identification information), SOC, current position, and travel plan.

[0052] 9 is a block diagram showing functions executed by the market server 3 to procure electricity to be supplied to a disaster-stricken area when a disaster occurs. The disaster detection unit 311 detects the occurrence of a disaster. For example, in accordance with the Basic Act on Disaster Countermeasures, when a disaster countermeasure headquarters is established in a local government, or when an emergency disaster countermeasure headquarters or an emergency disaster countermeasure headquarters is established in the Cabinet Office, information on the establishment of these disaster countermeasure headquarters may be obtained via the communication network 10 to detect the occurrence of a disaster.

[0053] When the occurrence of a disaster is detected, the disaster management unit 312 accepts bids for donated power, which is power to be donated to a disaster-stricken area, via the agent 2. The bidding for donated power executed by the disaster management unit 312 is in a form almost similar to the mechanism of donation-based crowdfunding, and is for procuring power to be supplied to a disaster-stricken area, and accepts donations of power in response to a call for donated power.

[0054] In this embodiment, when the occurrence of a disaster is detected, the disaster management unit 312 requests the B pallet management server 100 to make a bid for purchasing electricity via the communication network 10 in order to collect donated electricity to be supplied (donated) to the disaster-stricken area. The B pallet management server 100 that receives the request creates bidding information n0 for collecting donated electricity and transmits it to the disaster management unit 312 (trading market server 3). As shown in FIG. 9, this bidding information n0 is created so that trading: "buy", price: "0 yen", and attribute: "donation". The amount (transaction electricity amount) is the target procurement electricity and may be any value, but if a specific amount of electricity is requested by the disaster countermeasure headquarters or the like, it is desirable that it is the requested amount of electricity. In this embodiment, the amount of the bidding information n0 is "1000 kWh". This bidding information n0 represents the purchase of 1000 kWh of electricity free of charge, that is, the collection of donated electricity of 1000 kWh (target procurement electricity).

[0055] When the disaster management unit 312 receives the bid information n0 from the B pallet management server 100 and confirms that the attribute is "donation" and the price is "0 yen", it determines that the bid information n0 is a bid for a solicitation of donated electricity and accepts a donation for the solicitation of donated electricity. The acceptance of the donation is carried out by bidding on the P2P electricity trading market using the agent 2.

[0056] FIG. 10 is a diagram for explaining a bid to donate electricity to a disaster-stricken area. In FIG. 10, bid information n0 is bid information n0 of a bid made by the B pallet management server 100 to solicit donated electricity. Bid information n1 to n4 are bids to make donations in response to the solicitation of donated electricity. To make a donation in response to the solicitation of donated electricity, a bid is made with the attribute set to "donation." Bid information n1 is, for example, a bid made by agent 2 of factory 7A, with the following settings: trade: "sell," quantity: "30 kWh," price: "0 yen," attribute: "donation." Bid information n1 is a bid to provide 30 kWh of electricity as a donation (free of charge).

[0057] The bid information n2 is, for example, a bid made by the agent 2 of the electric power company 9, and is set as follows: trade: "sell", quantity: "1000 kWh", price: "26 yen", attribute: "donation". The bid information n2 is a bid indicating that up to 1000 kWh of electricity can be provided as donated electricity at a unit price of 26 yen (price per kWh).

[0058] Bid information n3 is, for example, a bid made by agent 2 of house 7D, and is set to trade: "buy", quantity: "10 kWh", price: "26 yen", and attribute: "donation". Bid information n2 is a bid indicating a donation of 260 yen (purchasing 10 kWh of electricity at a unit price of 26 yen and making a donation). Bid information n4 is, for example, a bid made by agent 2 of electric vehicle 5B, and is set to trade: "buy", quantity: "5 kWh", price: "26 yen", and attribute: "donation". Bid information n4 is a bid indicating a donation of 100 yen (purchasing 5 kWh of electricity at a unit price of 20 yen and making a donation).

[0059] The disaster management unit 312 aggregates bidding information whose attribute is set to "donation" and performs matching. The matching rule in the disaster management unit 312 is that the power bid by the agent 2 can be provided free of charge (can be provided as donated power). For example, in the example shown in FIG. 10, the bidding information n1 can provide 30 kWh of power free of charge, so a contract is made. The bidding information n3 can purchase 10 kWh of power from the bid (bidding information n2) of the agent 2 of the power company 9, so a contract is made for 10 kWh, and 10 kWh of donated power can be provided. At this time, the disaster management unit 312 subtracts 10 kWh from the amount of the bidding information n2, 1000 kWh, and rewrites it to "990 kWh". The unit price of the bidding information n4 is 20 yen, which is cheaper than the unit price of 26 yen of the bidding information n2, so the power cannot be purchased, and the transaction is not concluded and no contract is made. In this way, the disaster management unit 312 makes a contract only when the power bid by the agent 2 can be provided as donated power. In the example shown in Fig. 10, 40 kWh of power is donated as donated power.

[0060] 11 is a flowchart of the electricity donation collection process executed by the trading market server 3. This flowchart is repeatedly processed at predetermined intervals. In step (hereinafter, step is abbreviated as "S") 10, it is determined whether or not a disaster has been detected by the disaster detection unit 311. If a disaster has not been detected, a negative determination is made and the current process is terminated. If a disaster is detected by the disaster detection unit 311, a positive determination is made in S10 and the process proceeds to S11.

[0061] In S11, the disaster management unit 312 requests the B pallet management server 100 to make a bid for the purchase of electricity, and then proceeds to S12.

[0062] In S12, the disaster management unit 312 judges whether or not a bid with the attribute: "donation" and the price: "0 yen" has been received from the B pallet management server 100. When the B pallet management server 100, upon receiving the request, creates bidding information n0 for soliciting donated electricity and transmits it to the disaster management unit 312 (market trading server 3), the attribute of the received bidding information n0 is set to "donation" and the price is set to "0 yen", so a positive judgment is made in S12 and the process proceeds to S13. If the bidding information n0 has not been received, a negative judgment is made and S12 is repeatedly processed until the bidding information n0 is received.

[0063] In S13, bids with the attribute of the bidding information set to "donation" are aggregated and matched from among the bids received from each agent 2. For example, a notice requesting donations of electricity to disaster-stricken areas may be posted on the website of the P2P energy trading market to solicit donations of electricity.

[0064] The disaster management unit 312 aggregates bids with the attribute set to "donation" and makes a contract only if the power bid by agent 2 can be provided free of charge (the power bid by agent 2 can be provided as donated power). Then, the process proceeds to S14, where it is determined whether the total amount of agreed power has reached the target procurement power set in the bidding information n0 (1000 kWh in this embodiment) or whether the period for collecting donated power has ended. The period for collecting donated power can be set in advance depending on the situation in the disaster area, and may be, for example, one week from the start of collection.

[0065] In S14, if the total amount of the contracted power reaches the target procurement power or if the solicitation period has ended, the process ends. If the total amount of the contracted power does not reach the target procurement power and the solicitation period has not ended, the process returns to S13 and continues aggregating and matching bids from agents 2.

[0066] Information on the agreed-upon electricity (donated electricity) is transmitted from the trading market server 3 (disaster management unit 312) to the B pallet management server 100. The B pallet management server 100 then manages the B pallet 111 so that it charges with the procured donated electricity and then travels to the disaster area. For example, when donated electricity is procured in the "general trading market", the B pallet 111 is managed so that it charges with electricity equivalent to the donated electricity at the P pallet station 110 and then travels to the disaster area, and when donated electricity is procured in the "direct trading market", the B pallet 111 is managed so that it charges at the agreed-upon facility 7 and then travels to the disaster area.

[0067] According to this embodiment, by using the hardware (the trading market server 3, the agent 2) in the P2P energy trading market, it is possible to procure electricity to be supplied to disaster-stricken areas when a disaster occurs. In particular, by setting the attribute of the bidding information to "donation" and setting the matching rule to "electricity bid by the agent 2 can be provided to the disaster-stricken area free of charge", it is possible to virtually create a "donation-based crowdfunding" in the P2P energy trading market, so that users (individuals and corporations) participating in the P2P energy trading market can easily participate in donations without preparing a new payment service or software for crowdfunding.

[0068] In this embodiment, when the disaster detection unit 311 of the market trading server 3 detects a disaster, the disaster management unit 312 requests the B pallet management server 100 to create and transmit bidding information n0 for soliciting donated electricity. However, when a disaster occurs, the B pallet management server 100 may itself create bidding information n0 for soliciting donated electricity and transmit the created bidding information n0 to the market trading server 3 (disaster management unit 312). In this case, the function (step) of determining that the attribute of the bidding information n0 is "donation" and the price is "0 yen" corresponds to the "disaster detection unit" in this disclosure.

[0069] In this embodiment, the virtual "donation-based crowdfunding" has been described as an "All in" type in which a contract is made even if the total amount of donated electricity does not reach the target procurement power, but it may also be an "All or Nothing" type in which no contract is made if the total amount of donated electricity does not reach the target procurement power.

[0070] The following are examples of embodiments of the present disclosure. 1) An energy trading system comprising: a server (3) that manages an energy trading market in which energy transactions are conducted directly between the energy supplier and the energy demander; and an agent (2) for users participating in the energy trading market to place bids, wherein the server (3) comprises a disaster detection unit (311) that detects the occurrence of a disaster, and a disaster management unit (312) that, when the occurrence of a disaster is detected, accepts bids for donated energy, which is energy to be donated to a disaster-stricken area, via the agent (2).

[0071] In 2)1, the B pallet management server 100 manages the B pallet (111) that transports electricity stored in batteries to disaster-stricken areas, and when a disaster occurs, the B pallet management server 100 solicits bidding for donated electricity, and then accepts bids for donated electricity from the agent (2).

[0072] 3) In 1 or 2, the server (3) enters into a contract only if the power bid by the agent (2) can be provided to the disaster area free of charge.

[0073] 4) In any one of 1 to 3, the disaster detection unit detects the occurrence of a disaster when it receives a bid to procure electricity free of charge from the B pallet management server (100).

[0074] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present disclosure is defined by the claims, not by the description of the embodiments described above, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0075] 1 Energy trading system, 2, 2A to 2K Agent, 3 Trading market server, 5, 5A to 5E Electric vehicle, 6, 6A to 6H Charging and discharging equipment, 7 Facility, 7A Factory, 7B Company, 7C Commercial facility, 7D House, 7E Store, 9 Power company, 10 Communication network, 21 Processor, 22 Memory, 23 Communication device, 25 Calculation program, 26 Resource information, 31 Processor, 32 Memory, 33 Communication device, 35 Calculation program, 36 Agent information, 100 B Pallet management server, 101 Processor, 102 Memory, 103 Communication device, 105 Calculation program, 106 B Pallet information, 111, 111A to 111D B Pallet, 311 Disaster detection unit, 312 Disaster management unit, n0 to n4 Bidding information, PL Power line network.

Claims

[Claim 1] An energy trading system comprising: a server that manages an energy trading market in which energy trading is carried out directly between an energy supplier and an energy demander; and an agent that allows users participating in the energy trading market to place bids, The server, A disaster detection unit that detects the occurrence of a disaster; Disaster Management Department. The disaster management department When a disaster is detected, a solicitation bid is made to solicit donations of target procurement power, which is power to be donated to a disaster-stricken area; At least one first bid including information indicating an amount of power to be sold, information indicating a unit price of the power to be sold, and information indicating that the power selling fee will be donated; receiving at least one second bid including information indicating an amount of purchased power, information indicating a unit price of purchased power, and information indicating that the purchased power will be donated; When the electricity selling price of the first bid and the electricity purchasing price of the second bid match, the first bid and the second bid are contracted; When the power obtained by contracting the first bid and the second bid reaches the target procurement power, the contract process for the solicited bid is terminated.

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