KR20210041456A - The trading system and method for renewable energy certificate(REC) based on public blockchain network - Google Patents

Abstract

Provided is a system for transaction of renewable energy supply certificate (REC) based on a public blockchain network. The REC transaction system comprises: a REC producer node which creates a REC as a node matching a solar power generation company, issues a REC token related to the REC, and records REC certificate information, REC token face value information, and REC token transaction details in a block for forming a public blockchain; a small scale power brokerage node which transacts a REC linked with a REC token issued and sold by the REC producer node with a person responsible for the supply of renewable energy through a spot transaction market system and records REC transaction information including a REC sales amount according to the transaction in the block; a REC token holder node which purchases the REC token from the REC producer node and records transaction information according to the REC token purchasing in the block; and a REC exchange node which is linked with the spot transaction market system to broker the REC transaction from the small scale power brokerage node to the person responsible for the supply of renewable energy, and provides the REC sales amount to the REC producer node. The small scale power brokerage node and the REC token holder node execute smart contract algorithms based on the REC transaction information such that the difference between the REC token face value amount pre-sold at the REC producer node in advance and the actual sales amount of the REC in the spot transaction market system is automatically distributed according to profit distribution conditions set at the time of pre-sale. According to the present invention, the integrity and reliability of information can be secured.

Description

The trading system and method for renewable energy certificate (REC) based on public blockchain network}

The present invention relates to a new and renewable energy supply certificate (REC) transaction system and method based on a public blockchain network. More specifically, prior to selling RECs to those responsible for supplying new and renewable energy in the spot market for electric power transactions, new and renewable energy generators, including solar power generation companies, will be required to supply new and renewable energy in the over-the-counter market based on public blockchain technology. It relates to a REC transaction system and method that provides an environment in which you can freely trade with other third parties.

Block Chain refers to a data distribution processing technology that distributes and stores all data that are subject to management by all users participating in the network. It is also called'Distributed Ledger Technology (DLT)' or'Public Transaction Ledger' in that the ledger containing transaction information is not owned by the transaction entity or a specific institution, but is shared by all network participants. . Blockchain is a name given as a chain of blocks containing transaction details. This blockchain is a technology to prevent hacking such as forgery of transaction contents, and it sends transaction details to all users participating in the transaction, and uses a method to prevent data forgery by collating it with each transaction.

Blockchain is a core concept of decentralization, which aims for P2P (Peer to Peer) transactions, away from the existing financial system that secures and manages all transactions in financial institutions. P2P refers to a communication network that connects personal computers without a server or client, and each connected computer acts as a server and a client to share information.

In the existing financial system, financial companies have kept transaction records on a central server, whereas in a blockchain based on the P2P method, transaction information is stored in blocks and connected in sequence, which is shared by all participants.

Virtual currency, also known as electronic money or cryptocurrency, refers to currency that is traded online without real money such as bills or coins. Unlike ordinary currencies issued by governments or central banks in each country, virtual currency is valued according to rules set by the person who first devised it. In addition, due to the decentralization feature, the government or central bank does not manage transaction details and distributes based on blockchain technology, so specific institutions such as the government do not guarantee value or payment.

On the other hand, in relation to the conventional REC transaction, REC was traded in a way that the REC spot market was operated through communication between the central server that mediated the REC transaction between the REC seller computer and the REC purchaser computer and collects and stores transaction information. .

However, according to the current system, REC certificates can only be traded on the day the power trading market is held through the mediation of a central server connected online, and cannot be sold on other days. In addition, since the entity that purchases REC can only purchase the person obligated to supply new and renewable energy, there is a limit to the easy liquidation of funds by selling the REC seller, the solar power generation service provider, when it is needed. In particular, there are various technical problems in which transactions cannot be made when a failure occurs between the central server and the computer terminals for REC trading.

Korean Patent Registration 10-1976401 (announcement date May 9, 2019)

The technical problem to be solved by the present invention is based on public blockchain technology before a renewable energy generator such as a solar power generator sells a Renewable Energy Certificate (REC) to a person obligated to supply new and renewable energy in the spot market for power trading. It is to provide a new and renewable energy supply certificate (REC) transaction system and method based on a public blockchain network that provides an environment for freely transacting with third parties excluding the obligators of renewable energy in the over-the-counter market.

Another technical problem to be solved by the present invention is to solve the problem that the existing REC can be traded only on the holding date of the power exchange (Tuesday/Thursday), and the REC producer (solar power generation service provider, etc.) can trade with a third party at a desired time. It is to provide a public blockchain network-based new and renewable energy supply certificate (REC) transaction system and method that provides an environment in which funds can be liquidated.

However, the technical problems to be solved by the present invention are not limited to the above problems, and may be variously extended without departing from the spirit and scope of the present invention.

To solve the above problem, the public blockchain network-based new and renewable energy supply certificate (REC) transaction system according to an embodiment of the present invention generates a REC as a node matching a solar power generation company, and is associated with the REC. Issuing a REC token and interlocking with the REC certificate information, the REC token par value information and the REC token transaction details recorded in the block forming the public blockchain, the REC token issued and sold by the REC producer node A small power brokerage node that transacts the obtained REC with a person responsible for supplying new and renewable energy through the spot trading market system, and records REC transaction information including the amount of REC sale according to the transaction in the block, and the REC from the REC producer node. A REC token holder node that purchases a token and records transaction details according to the purchase of the REC token in the block, and the small power brokerage node to the new renewable energy supply obligation in connection with the spot market system. Including a REC exchange node that mediates REC transactions and provides the REC sales amount to the REC producer node, wherein the small power brokerage service provider node and the REC token holder node are pre-sold from the REC producer node. A smart contract algorithm is executed based on the REC transaction information so that the difference between the token face value and the amount actually sold by the REC in the spot market system is automatically allocated according to the profit distribution condition set at the time of pre-sale.

In some embodiments according to the present invention, the small power brokerage node is provided with a REC sale amount from the REC producer node based on the REC transaction information, and the REC token holder node receives the REC sales amount according to a predetermined contract condition for the REC token holder node. Profits can be distributed by purchasing tokens.

In some embodiments according to the present invention, the public blockchain network includes a plurality of REC token holder nodes, and each of the plurality of REC token holder nodes trades REC tokens with each other, and records REC token transaction details to the block. Can be recorded.

In some embodiments according to the present invention, the REC exchange node may record the spot amount information provided to the REC producer node in the block.

In order to solve the above problem, the public blockchain network-based new and renewable energy supply certificate (REC) transaction method according to an embodiment of the present invention is, in the REC producer node, the REC token face value information, REC production information, small power brokerage and Recording REC token issuance information, including contract information and profit distribution information, in a block of the public blockchain, the REC producer node, small power broker node, and REC token holder node are subject to the conditions for profit distribution according to the sale of REC. Setting a smart contract algorithm to be executed automatically, after the REC is sold through the spot market system, the REC sales price is automatically settled between the REC producer node, the small power brokerage node, and the REC token holder node The small power brokerage node and the REC token holder node according to the profit distribution condition set at the time of pre-sale by determining the difference between the amount pre-sold by the REC producer node and the amount actually sold by the REC in the spot market system. And distributing among the blocks, and connecting the blocks included in the public blockchain.

Other specific details of the present invention are included in the detailed description and drawings.

According to the present invention, based on public blockchain technology, REC producers (solar power generation companies, etc.) can freely trade RECs with third parties excluding those who are obligated to supply new and renewable energy in the over-the-counter market, not in the spot market for power transactions. It provides an environment that can be used. Accordingly, REC producers can liquidate their funds by selling RECs at a preemptive discount through issuing REC tokens to various investors.

In addition, according to the present invention, since public blockchain technology is used, anyone can participate in the node, and since forgery and alteration of REC transaction details is impossible, integrity and reliability of information can be secured.

In addition, according to the present invention, it is possible to solve the problem that REC producers (solar power generation companies, etc.) have to sell RECs to a few persons obligated to supply new and renewable energy only through the spot trading market (KPX, power exchange). It can solve the irrationality of the energy supply obligor to have substantial pricing power.

However, the effects of the present invention are not limited to the above effects, and may be variously extended without departing from the spirit and scope of the present invention.

1 is a diagram showing a distributed processing system using a block chain to which the technical idea according to the present invention can be applied.
2 and 3 are block diagrams showing the connection of blocks used in a block chain system.
4 is a block diagram schematically showing a REC transaction system based on a public blockchain network according to the present invention.
5 is a flowchart sequentially showing a REC transaction method based on a public blockchain network according to the present invention.
6 is a block diagram of a computing device of a node according to an embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments are intended to complete the disclosure of the present invention, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims.

The terms used in the present specification are for describing exemplary embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used herein, "comprises" and/or "comprising" refers to the presence of one or more other components, steps, actions and/or elements in which the recited component, step, operation and/or element is Or does not preclude additions.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions for the same elements are omitted.

REC (Renewable Energy Certificate) referred to in this specification below is referred to as a supply certificate, and the supply of new and renewable energy that must be submitted by a mandatory supplier of the Renewable Energy Supply Mandatory System (RPS) to fulfill his or her obligation to supply new and renewable energy. It is defined as issuing 1REC for 1MW power generation as a certificate proving that.

Renewable energy supply obligation and system (RPS) refers to a system in which power generation businesses (supply obligations) of a certain size (equipment capacity 500MW) or more are obligated to supply more than a certain amount of total power generation as renewable energy power Iran refers to the ratio of obligations of the supply obligor to provide the amount of renewable energy generation to his total generation. Currently, the annual supply obligation ratio is 6%, and is expected to be 7% in 2020, 8% in 2021, 9% in 2022, and 10% after 2023. The mandatory supply is determined by the ratio of the supply obligation to the total electricity production from January to December of the previous year.

As a method of supplying new and renewable energy, there are methods for the supply obligation to fill the supply obligation: ① a method of self-procuring by constructing a new renewable energy power plant directly, and ② an external procurement method of purchasing a supply certificate through the certificate trading market. Since the supply mandator can externally procure the supply certificate, the solar power generation company can obtain a supply certificate (REC) and sell it to the supply man to obtain additional profits in addition to the electricity sales profit. Each year, a supply certificate corresponding to the mandatory supply must be submitted by February, and if not fulfilled, a penalty may be imposed within 150% of the average supply certificate price, and the supply obligor may carry over the mandatory supply within 20% of the mandatory supply. Yes, flexible response is possible.

Regarding the REC sales price of a solar power generation company, it is a certificate issued by the Korea Energy Management Corporation according to the amount of renewable energy generated. , Annual sales can be determined by installation capacity (kW) × weight × annual power generation time (h) × REC unit price, and the REC unit price is determined in the two-way trading market at the power exchange, which is the spot market.

Regarding REC issuance and sales, ① REC issuance can be verified by the power generation company in the RPS comprehensive management system for the data acquired from the Korea Electric Power Corporation or the Korea Power Exchange, and within 90 days from the end of the month in which the power supply date belongs, the RPS comprehensive management system You can apply for issuance at ② REC sales are a method of trading issued RECs (in-kind) and can be traded in a two-way market (a market where buyers and sellers bid in real time and trade) operated by the Power Exchange. Trading days and trading hours are set every Tuesday/Thursday from 10 to 16:00.

The present invention transacts a new and renewable energy supply certificate (REC) based on a public blockchain network, and records the transaction details on the blockchain to provide a small power broker node, a solar power generator (REC producer) node, and a REC. It relates to a technology that can prevent forgery and alteration of transaction details by sharing among token holder nodes.

In addition, the present invention can trade only on the day the power trading market is held through the mediation of the central server for the existing REC transaction, and the REC purchase subject is also limited to the obligation to supply new and renewable energy, so that the photovoltaic power generation service provider who is the REC producer It is possible to solve the difficult problem of easily securing funds by selling RECs when necessary.

Hereinafter, before describing the public blockchain network-based REC transaction system and method according to the present invention, a distributed processing system using a blockchain will be first described.

In a distributed processing system using a block chain, a consensus algorithm is needed to determine the transaction details to be used for block generation after comparing the transaction details (transaction information) generated by each node for each specific time period. Through this consensus algorithm, nodes participating in the distributed system have the same transaction details that everyone can agree on, and through this, they trust the system.

1 is a diagram showing a distributed processing system using a block chain to which the technical idea according to the present invention can be applied.

Referring to FIG. 1, a distributed processing system 100 using a block chain is a distributed network system composed of a plurality of nodes 110-170. The nodes 110 to 170 constituting the distributed network 100 may be electronic devices having computing power, such as a computer, a mobile terminal, and a dedicated electronic device.

In general, the decentralized network 100 may store and refer to information commonly known to all participating nodes within a connection bundle of blocks called a block chain. The nodes 110-170 can communicate with each other and can be divided into a full node that is responsible for storing, managing, and disseminating the block chain, and a light node that can only participate in transactions only. . When a node is referred to in the present specification without further explanation, it is often referred to as a complete node that participates in a distributed network and performs an operation of creating, storing, or verifying a block chain, but is not limited thereto.

Each block connected to the blockchain includes transaction details, that is, transactions within a certain period of time. The nodes can manage transactions by creating, storing, or verifying the blockchain according to their respective roles.

Depending on the embodiment, the transaction may represent various types of transactions. In one embodiment, the transaction may correspond to a financial transaction to indicate the ownership status of virtual currency and its change. In another embodiment, the transaction may correspond to a real transaction for indicating the ownership status of an object and its change. In another embodiment, the transaction may correspond to an information sharing process for indicating recording, storage, and transfer of information. Nodes performing a transaction in the distributed network 100 may have a private key and a public key pair each having a cryptographic relationship.

2 and 3 are block diagrams showing the connection of blocks used in a block chain system.

Referring to FIG. 2, the block chain 200 is a kind of distributed database of one or more blocks 210, 220, 230 connected in sequence. The block chain 200 is used to store and manage transaction details of users in the block chain system, and each node participating in the network of the block chain system creates a block and connects it to the block chain 200. Although a limited number of blocks 210, 220, and 230 are shown in FIG. 2, the number of blocks that can be included in the block chain is not limited thereto.

Each block included in the block chain 200 may be configured to include a block header 211 and a block body 213. The block header 211 may include a hash value of the previous block 220 to indicate a connection relationship between blocks. In the process of verifying whether the block chain 200 is valid, the connection relationship in the block header 211 is used. The block body 213 may include data stored and managed in the block 210, for example, a transaction list or a transaction chain.

Referring to FIG. 3, the block header 211 may include a hash 2112 of a previous block, a hash 2113 of a current block, and a nonce 2114. In addition, the block header 211 may include a root 2115 indicating a header of a transaction list in a block.

As described above, the block chain 200 may include one or more connected blocks. The one or more blocks are connected based on a hash value in the block header 211. The hash value 2112 of the previous block included in the block header 211 is a hash value for the previous block 220 and is the same as the current hash 2213 included in the previous block 220. The one or more blocks are concatenated by a hash value of a previous block in each block header. Nodes participating in the distributed network verify the validity of the block based on the hash value of the previous block included in the one or more blocks, so it is impossible for a single malicious node to forge or alter the contents of an already created block. Do.

The block body 213 may include a transaction list 2131. The transaction list 2131 is a list of blockchain-based transactions. For example, the transaction list 2131 may include records of financial transactions made in the blockchain-based financial system. The transaction list 2131 may be expressed in the form of a tree. For example, the amount transmitted by the user A to the user B is recorded in the form of a list, and the storage length in the block is of the transaction included in the current block. It can be increased or decreased based on the number.

In addition, the block 210 may include other information 2116 other than the information included in the block header 211 and the block body 213.

The nodes participating in the decentralized network have the same blockchain, and the same transaction is stored in the block. Since the block containing the transaction list is shared on the network, all participants can verify it.

Hereinafter, the configuration of the REC transaction system according to the present invention will be described.

4 is a block diagram schematically showing a REC transaction system based on a public blockchain network according to the present invention.

Referring to FIG. 4, the REC transaction system 300 according to the present invention includes a REC producer node 310, a small power brokerage node 320, a REC token holder node 330, and a REC exchange node 340. It is configured to form a public blockchain network.

Public Blockchain refers to an open blockchain network in which anyone can participate without restrictions, and corresponds to a public blockchain or an open blockchain. A public blockchain network consists of a number of nodes, and a node refers to an individual computing device that participates in the network. Each node can copy and store the data stored in the blockchain, and participate in the creation of a new block through hash operation. In addition, you can freely withdraw as you can block access at any time without connecting your own computing device to the blockchain network. It is a structure in which participation and withdrawal of the blockchain network is entirely determined by the will of the node participant.

Participants of the public blockchain network are compensated by issuing cryptocurrencies to cover operating expenses such as electricity costs associated with computer use. Node participants can cover operating costs by receiving cryptocurrency issued every time a new block is created. The received cryptocurrency can be sold on a cryptocurrency exchange and used for participation expenses. This characteristic proves that the public blockchain and cryptocurrency are separate and cannot be independent. If the public blockchain network does not pay cryptocurrency, the blockchain network participants will not participate in the network because there is no economic reward, which will lead to the collapse of the blockchain network.

In the present invention, each node is connected to form a public blockchain network, and each node is described below.

First, the REC producer node 310 is a node that is matched to a renewable energy generator, and in the present invention, a node that is matched to a solar power generator is illustrated. The REC producer node 310 issues REC tokens and liquidizes funds by selling REC tokens to various investor nodes (e.g., REC token holder node 330) in addition to the REC spot trading market based on public blockchain technology. It is configured to let. At this time, the REC producer node 310 records REC certificate information (owner, issue date, etc.), REC token face value, and REC token transaction details on a block.

Previously, RECs could only be sold to persons obligated to supply new and renewable energy in the REC spot trading market, and sales to third parties were not possible. However, the present invention has the effect that REC producers can liquidate their funds by selling RECs at a pre-discount through issuing REC tokens to various investors in addition to the REC spot trading market based on public blockchain technology.

Second, after the REC token is sold at the REC producer node 310, the small power brokerage node 320 brokers the actual sale of the REC token linked to the REC token to the person obligated to supply new and renewable energy in the spot trading market. At this time, the small power brokerage business node 320 records REC transaction information including the amount of REC sale on the block, and when the REC is actually sold to a person obligated to supply new and renewable energy in the REC spot trading market, the small power brokerage node ( At 320), the REC token holder node 330 executes a smart contract algorithm based on the REC transaction information.

In the blockchain-based smart contract algorithm, the difference between the amount pre-sold by the REC producer (the face value of the REC token) and the amount actually sold by the REC in the spot market is automatically enforced. It is a transaction technique based on blockchain technology that is fairly distributed between the REC token holder node 330 and the small power broker node 320.

Third, the REC token holder node 330 purchases the REC token from the REC producer node 310, and the block by the REC producer node 310 includes REC certificate information (owner, issue date, etc.), the face value of the REC token, and the REC token. Token transaction details are recorded. According to this transaction technique, possession information and transaction information recorded on the public blockchain are not forged, so it is possible to distribute REC tokens more efficiently than the method of recording and storing transaction information on a redundant central server where large-scale investments are entered.

In addition, when the REC token is converted into real currency and the conditions for paying the profit are set in advance in the token, and the REC is sold, a contract for which the profit is promised between the small power broker node 320 and the REC token holder node 330 in advance. It is forcibly distributed according to conditions and automatically transferred between financial accounts, thereby creating a reliable transaction environment for all participants in the public blockchain.

That is, in the present invention, the REC producer node 310 that issued the REC token linked to the REC certificate records distribution transaction information for selling the token to the REC token holder node 330 on the public blockchain, and then small-scale power brokerage. After the operator node 320 actually sells the REC, the token issuance par value is paid to the REC token holder node 330, and the difference between the sale price and the face value of the REC token is additionally determined according to a predetermined condition. A smart contract algorithm of a method of automatically debiting each designated account by forcibly distributing it between 320 and the REC token holder node 330 is executed.

Fourth, the REC exchange node 340 is interlocked with the REC spot trading market to mediate the REC transaction linked with the REC token to the person responsible for the supply of new and renewable energy at the small power brokerage business node 320, and the REC sale amount is REC Provides to the producer node 310. The REC producer node 310 calculates the amount of REC sales and provides it to the small power broker node 320, and a smart contract based on REC transaction information from the small power broker node 320 to the REC token holder node 330 The algorithm is executed. As described above, the difference between the amount pre-sold by the REC producer (the face value of the REC token) and the amount actually sold by the REC in the spot trading market is automatically enforced, and the conditions for the profit distribution set at the time of pre-sale are automatically enforced. It is distributed fairly between the holder node 330 and the small power broker node 320.

The REC exchange node 340 records REC transaction information including the REC sale amount on the block, and also records the spot amount information provided to the REC producer node 310 in the block.

5 is a flowchart sequentially showing a REC transaction method based on a public blockchain network according to the present invention.

Referring to FIG. 5, the REC transaction method based on a public blockchain network according to the present invention is, first, the face value, which is the estimated minimum sales amount of RECs held by REC producers (solar power generators, etc.), REC production information, and small power. A computer node with a function of issuing REC tokens and a block production function that can include contract information and profit distribution information with an intermediary service provider is installed (S110).

Then, other REC producer nodes, computer nodes that want to purchase REC tokens, and computer nodes of small power intermediaries are connected through an Internet communication network to form a public blockchain network (S120).

In addition, the REC producer's computer node sets the face value at a discounted price based on the expected REC sales amount prior to the REC transaction, and when the REC is actually sold, the conditions for profit distribution with the small power brokerage are automatically executed. An algorithm is set and a REC token linked to the REC is issued (S130). When the REC token is issued, the REC producer sets the face value of the REC token and distributes the REC token on the public blockchain network through the computer node setting of a small power intermediary so that the REC token can be paid to investors.

The issued REC tokens are sold to investors, and after the actual REC is sold in the spot market, when a smart contract that automatically recovers the amount of REC sales is executed, REC between the REC producer node, the REC token holder node, and the small power broker node. The sales price is automatically settled, and the difference between the amount pre-sold by the REC producer (the face value of the REC token) and the amount actually sold by the REC in the spot trading market is determined with the REC token holder node according to the profit distribution conditions set at the time of pre-sale. Fairly distributed among the nodes of the small power brokerage service provider (S140).

REC token distribution shares the transaction information of the REC token with all nodes participating in the public blockchain network so that individual REC tokens can be traded without a central server in the public blockchain network, and collects the information and stacks it in blocks to prevent forgery. Connect with a chain (S150).

In the smart contract algorithm in the present invention, when a small power brokerage actually sells RECs in the existing spot trading market, based on the REC sales information and the REC token issuance information, the difference between the par value and the actual sales price of the REC token at the time of issuing REC tokens. When a token is generated, the difference is automatically distributed according to the conditions for distribution of profits between the small power intermediary and REC token holders.

In addition, through the smart contract in the present invention, photovoltaic power generation companies (REC producers) can obtain revenue by selling REC tokens regardless of the date of the spot trading market by issuing tokens linked to RECs even before the actual sale of RECs. have.

6 is a configuration diagram of a computing device of a node according to an embodiment of the present invention.

6, a computing device 1000 of a node according to an embodiment of the present invention includes a processor 1100 and a memory 1200, and the processor 1100 includes one or more cores and a graphic processing unit and/ Alternatively, a connection path (eg, a bus, etc.) for transmitting and receiving signals to and from other components may be included.

The processor 1100 according to an embodiment executes the operation of the REC transaction system described with reference to FIGS. 4 and 5 by executing one or more instructions stored in the memory 1200.

For example, the processor 1100 collects information on REC transactions generated in one or more nodes by executing one or more instructions stored in the memory, records the collected information in a block, and writes the collected information to the information recorded in the block. Based on this, relevant information is provided for at least one node.

Meanwhile, the processor 1100 may further include a random access memory (RAM) and a read-only memory (ROM) that temporarily and/or permanently store a signal (or data) processed internally. . In addition, the processor 1100 may be implemented in the form of a system on chip (SoC) including at least one of a graphic processor, RAM, and ROM.

The memory 1200 may store programs (one or more instructions) for processing and controlling the processor 1100. Programs stored in the memory 1200 may be divided into a plurality of modules according to functions.

The operations of the system described in connection with the embodiment of the present invention may be directly implemented by hardware, implemented by a software module executed by hardware, or implemented by a combination thereof. Software modules include Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Flash Memory, hard disk, removable disk, CD-ROM, or It may reside on any type of computer-readable recording medium well known in the art to which the present invention pertains.

Components of the present invention may be implemented as a program (or application) and stored in a medium in order to be executed by being combined with a computer that is hardware. Components of the present invention may be implemented as software programming or software elements, and similarly, embodiments include various algorithms implemented with a combination of data structures, processes, routines or other programming components, including C, C++ , Java, assembler, or the like may be implemented in a programming or scripting language. Functional aspects can be implemented with an algorithm running on one or more processors.

It should be understood that the above-described embodiments are illustrative and non-limiting in all respects, and the scope of the present invention will be indicated by the claims to be described later rather than the detailed description described above. And the meaning and scope of the claims, as well as all changes and modifications derived from the equivalent concept should be construed as being included in the scope of the present invention.

100: distributed network
110-170: nodes
200: Blockchain
210, 220, 230: block
300: REC trading system
310: REC producer node
320: Small power brokerage node
330: REC token holder node
340: REC exchange node

Claims (5)

Creates a REC as a node matching the solar power generation service provider, issues a REC token associated with the REC, and records the REC certificate information, the REC token face value information, and the REC token transaction details in a block forming a public blockchain. REC producer node;
To transact RECs linked with REC tokens issued and sold by the REC producer node with a person responsible for supplying new and renewable energy through the spot market system, and record REC transaction information including the amount of REC sales according to the transaction in the block Small power brokerage node;
A REC token holder node that purchases the REC token from the REC producer node and records transaction details according to the purchase of the REC token in the block; And
Including; and a REC exchange node interlocking with the spot trading market system to mediate the REC transaction from the small power brokerage service provider node to the renewable energy supply obligation, and to provide the REC sale amount to the REC producer node,
The small power brokerage service node and the REC token holder node are profits determined by pre-sale of the difference between the par value of the REC tokens pre-sold by the REC producer node in advance and the amount actually sold by the REC in the spot market system. Renewable energy supply certificate (REC) transaction system based on a public blockchain network that executes a smart contract algorithm based on the REC transaction information to automatically distribute according to the distribution condition. The method of claim 1,
The small power brokerage node is,
Receiving a REC sale amount from the REC producer node based on the REC transaction information,
Renewable energy supply certificate (REC) transaction system based on a public blockchain network that purchases REC tokens and distributes profits to the REC token holder nodes according to predetermined contract conditions. The method of claim 1,
The public blockchain network includes a plurality of REC token holder nodes,
Each of the plurality of REC token holder nodes trades REC tokens with each other and records REC token transaction details in the block, a public blockchain network-based new and renewable energy supply certificate (REC) transaction system. The method of claim 1,
The REC exchange node records the spot amount information provided to the REC producer node in the block, a new renewable energy supply certificate (REC) transaction system based on a public blockchain network. Recording REC token issuance information, including REC token par value information, REC production information, contract information with small power intermediaries, and profit distribution information, in a block of the public blockchain at the REC producer node;
Setting a smart contract algorithm such that a profit distribution condition according to the sale of RECs is automatically executed for the REC producer node, the small power brokerage business node, and the REC token holder node;
After the REC is sold through the spot market system, automatically settling the REC sales price between the REC producer node, the small power brokerage service provider node, and the REC token holder node;
The difference between the amount pre-sold by the REC producer node and the amount actually sold by the REC in the spot market system is distributed between the small power brokerage business node and the REC token holder node according to the profit distribution condition set at the time of pre-sale. The step of doing; And
Connecting the blocks included in the public blockchain; containing, a public blockchain network-based new and renewable energy supply certificate (REC) transaction method.

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