KR20210012579A - Method for trading distributed energy resource and computer program stored in computer readable storage for performing the same - Google Patents

Abstract

Provided is a method for trading small-scale distributed resources, which includes the steps of: acquiring a total amount of power used by prosumers participating in power trading; acquiring the total amount of power generated including prosumer′s sales power generation, self-use power generation, and surplus power; acquiring at least one of a market purchase power amount corresponding to the amount of power purchased by the prosumer and an amount of power purchased short of sales; and calculating the profit and loss from the electricity transaction based on an electricity rate corresponding to the total amount of electricity used, the electricity rate after electricity transaction, the total electricity purchase, and the total electricity sales. The present invention can efficiently trade energy between small-scale distributed resources.

Description

Small-scale distributed resource trading method and computer program stored in a computer-readable storage medium to execute it {METHOD FOR TRADING DISTRIBUTED ENERGY RESOURCE AND COMPUTER PROGRAM STORED IN COMPUTER READABLE STORAGE FOR PERFORMING THE SAME}

The present invention relates to a small-scale distributed resource transaction method and a computer program stored in a computer-readable storage medium to execute the same, and more particularly, a small-scale distributed resource transaction method capable of transacting power between prosumers, and a computer to execute the same. It relates to a computer program stored in a storage medium readable by.

In general, prosumer is a compound word of producer (producer) and consumer (consumer), meaning a consumer who participates in production. Prosumer was first used by futurist Alvin Toffler in 1980 in his book The Third Wave, predicting that in the 21st century the boundaries between producers and consumers will be broken. In the present invention, a prosumer refers to a consumer and producer who consumes power (or energy) and participates in power generation.

As small-scale photovoltaic power generation facilities (renewable power generation facilities) for small-scale buildings and homes have recently spread, prosumers that earn profits by selling the remaining electricity produced by users themselves are attracting great attention. In particular, energy prosumers are rapidly being activated in the US, Australia, and Germany, where the proportion of new and renewable energy is high.

From the standpoint of power facility construction and operation, as the construction of large-scale power generation and transmission facilities becomes increasingly difficult, the installation of small-scale distributed renewable energy facilities (small-scale distributed resources) is expected to increase. As the number of renewable energy sources connected to the power system increases, and the spread of distributed power and ESS at the demand end, the traditional centralized power system operation is facing its limit.

As the number of distributed power sources increases rapidly, it is difficult to predict the amount of demand and generation, making it increasingly difficult to control all of them at the central (power exchange) using the conventional method.

Therefore, there is a need to develop a small-scale distributed resource transaction method that can effectively mediate the power exchange and small-scale distributed resources at the terminal and manage energy transactions between them.

Accordingly, the technical problem of the present invention is conceived in this respect, and an object of the present invention is a small-scale distributed resource transaction method capable of efficiently transacting energy between small-scale distributed resources, and a computer stored in a computer-readable storage medium to execute the method. It is to provide a program.

A small-scale distributed resource transaction method according to an embodiment for realizing the object of the present invention includes: acquiring a total amount of power used by a prosumer participating in the power transaction; Acquiring a total power generation amount including sales power generation amount, self-use power generation amount, and surplus power amount of the prosumer; Acquiring at least one or more of a market purchase power amount and a sales shortage purchase power amount corresponding to the amount of power purchased by the prosumer; Calculating an electric charge corresponding to the total amount of power used; Calculating an electric charge after the electric power transaction; Calculating a total amount of electricity purchased through the electricity transaction; Calculating a total amount of electricity sold through the electricity transaction; And calculating a profit or loss due to the power transaction based on an electric charge corresponding to the total amount of used electric power, an electric charge after the electric power transaction, the total electric power purchase, and the total electric power sales.

In an embodiment of the present invention, the small-scale distributed resource includes at least one of a renewable energy facility, an electric storage device, or an electric vehicle, and the renewable energy facility includes hydrogen energy, fuel cell, and solar It may include a power generation facility using at least one or more of energy, wind power, hydropower, or marine energy.

In an embodiment of the present invention, the prosumer may perform at least one transaction of selling or purchasing power generated from the small-scale distributed resource.

In one embodiment of the present invention, the sales generation amount includes generation amount sold through the power transaction within a predetermined period of the total generation amount, and the self-use generation amount is sold within the predetermined period of the total generation amount and remains The amount of power generated by the prosumer is included among the amount of power generation, and the amount of surplus power includes a value obtained by subtracting the amount of power generated by the sales and the amount of power generated by the self-used from the total amount of power generation, and the amount of surplus power may be transmitted to either KEPCO or an intermediary service provider. .

In one embodiment of the present invention, the market purchase power amount includes the amount of power purchased through the power market in which the power transaction is made, and the sales shortfall purchase power amount is a sales contract when the actual power generation amount of the prosumer is smaller than the expected power generation amount. The amount of electricity purchased from an intermediary may be included in order to preserve the generated generation amount.

In one embodiment of the present invention, the step of calculating the electric charge corresponding to the total amount of used electric power comprises calculating an electric charge corresponding to the total amount of used electric power based on an electric charge calculation formula corresponding to the electric charge calculation standard of KEPCO. Can be calculated.

In one embodiment of the present invention, the calculating of the electricity rate after the electricity transaction is based on an electricity rate calculation formula corresponding to the electricity rate calculation standard of KEPCO, and the market purchase electricity amount, the self An electric charge corresponding to the amount of electricity generated by subtracting the amount of power generation used and the amount of surplus power transmitted to the KEPCO may be calculated.

In one embodiment of the present invention, the total amount of power purchase includes a value obtained by adding a purchase amount corresponding to the amount of electricity purchased in the market and a purchase amount corresponding to the amount of electricity purchased in the shortfall, and the total amount of electricity sales corresponds to the amount of electricity sold. It may include a value obtained by adding a sales amount and a sales amount corresponding to the amount of surplus power transmitted to the intermediary service provider.

In an embodiment of the present invention, the calculating of the profit or loss due to the power transaction comprises subtracting the total amount of electricity purchase and the total amount of power purchase after the power transaction from the electricity rate corresponding to the total amount of electricity used, and adding the total amount of electricity sales. May contain values.

A computer program stored in a computer-readable storage medium according to an embodiment for realizing the object of the present invention comprises the steps of: acquiring a total amount of power used by a prosumer participating in the power transaction in power transaction of small-scale distributed resources; Acquiring a total power generation amount including sales power generation amount, self-use power generation amount, and surplus power amount of the prosumer; Acquiring at least one or more of a market purchase power amount and a sales shortage purchase power amount corresponding to the amount of power purchased by the prosumer; Calculating an electric charge corresponding to the total amount of power used; Calculating an electric charge after the electric power transaction; Calculating a total amount of electricity purchased through the electricity transaction; Calculating a total amount of electricity sold through the electricity transaction; And calculating a profit or loss resulting from the power transaction based on an electric charge corresponding to the total amount of used electric power, an electric charge after the electric power transaction, the total electric power purchase, and the total electric power sales.

In an embodiment of the present invention, the small-scale distributed resource includes at least one of a renewable energy facility, an electric storage device, or an electric vehicle, and the renewable energy facility includes hydrogen energy, fuel cell, and solar It may include a power generation facility using at least one or more of energy, wind power, hydropower, or marine energy.

In an embodiment of the present invention, the prosumer may perform at least one transaction of selling or purchasing power generated from the small-scale distributed resource.

In one embodiment of the present invention, the sales generation amount includes generation amount sold through the power transaction within a predetermined period of the total generation amount, and the self-use generation amount is sold within the predetermined period of the total generation amount and remains The amount of power generated by the prosumer is included among the amount of power generation, and the amount of surplus power includes a value obtained by subtracting the amount of power generated by the sales and the amount of power generated by the self-used from the total amount of power generation, and the amount of surplus power may be transmitted to either KEPCO or an intermediary service provider. .

In one embodiment of the present invention, the market purchase power amount includes the amount of power purchased through the power market in which the power transaction is made, and the sales shortfall purchase power amount is a sales contract when the actual power generation amount of the prosumer is smaller than the expected power generation amount. The amount of electricity purchased from an intermediary may be included in order to preserve the generated generation amount.

In one embodiment of the present invention, the step of calculating the electric charge corresponding to the total amount of used electric power comprises calculating an electric charge corresponding to the total amount of used electric power based on an electric charge calculation formula corresponding to the electric charge calculation standard of KEPCO. Can be calculated.

In one embodiment of the present invention, The step of calculating the electricity rate after the electricity transaction is based on the electricity rate calculation formula corresponding to the electricity rate calculation standard of KEPCO, the market purchased electricity amount, the self-use power generation amount, and the KEPCO transmitted from the total amount of used electricity. It is possible to calculate an electric charge corresponding to the amount of power obtained by subtracting the amount of excess power.

In one embodiment of the present invention, the total amount of power purchase includes a value obtained by adding a purchase amount corresponding to the amount of electricity purchased in the market and a purchase amount corresponding to the amount of electricity purchased in the shortfall, and the total amount of electricity sales corresponds to the amount of electricity sold. It may include a value obtained by adding a sales amount and a sales amount corresponding to the amount of surplus power transmitted to the intermediary service provider.

In an embodiment of the present invention, the calculating of the profit or loss due to the power transaction comprises subtracting the total amount of electricity purchase and the total amount of power purchase after the power transaction from the electricity rate corresponding to the total amount of electricity used, and adding the total amount of electricity sales. May contain values.

According to such a small-scale distributed resource transaction method and a computer program stored in a computer-readable storage medium to execute the small-scale distributed resource transaction method, profit or loss due to small-scale distributed resource transaction can be easily checked.

1 is a conceptual diagram for explaining a small-scale distributed resource transaction according to the present invention.
2 is an example of a screen of profit and loss status due to power transaction.
3 is a flowchart illustrating a method of trading small-scale distributed resources according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a conceptual diagram for explaining a small-scale distributed resource transaction according to the present invention.

Referring to FIG. 1, a small-scale distributed resource transaction according to an embodiment of the present invention may be performed through an intermediary service provider 1 and a market participant 2 connected through the Internet. Here, the market participant 2 may be a user who uses the small-scale distributed resource transaction method according to an embodiment of the present invention.

Market participant 2 can be defined as a buyer and a seller. Vendors can incorporate the concept of prosumers. The prosumer may perform at least one transaction of selling or purchasing electricity generated from small-scale distributed resources. Therefore, the market participant 2 can be both a seller and a buyer.

When new users join (i.e. participate) in a small distributed resource trading market, it may not be possible to distinguish between buyers and sellers. All market participants (2) can basically be buyers, or sellers if certain requirements are met.

Due to the nature of a product called electricity, it is necessary to have basic power generation facilities to sell electricity, and to secure stable electricity sales, it may be required to equip a certain level of equipment. In addition, it is possible to check whether individuals can participate in the small-scale power trading market for power purchase (for example, through a contract with KEPCO or whether to establish a specific facility set in advance).

Operators operating a small distributed resource trading market (for example, brokerage service provider (1)) are required to determine whether a member who wants to sell electric power products has a certain level of equipment or not, and whether a member who wants to purchase electric power products can participate in the market. You can check and authenticate whether you can.

Only those who have obtained the above verification and certification can become a member of the system, and in an embodiment, the membership management service of Hyperledger Fabric can be applied to the certification.

A member who wants to sell power products must obtain the above certification from an operator to register power products in the market.

As a seller, the market participant (2) can select a sales type related to whether or not to register electric power products in the small-scale distributed resource trading market. The market participant (2) can select any one of a consumer, a prosumer, and a power generation company when participating in the market in relation to the sales type.

Consumers can purchase products, but they cannot sell products, and may require authentication as to whether power purchase is possible.

The prosumer can purchase and sell products, and may include a user who uses and sells the generated electricity at the same time. The amount of power that can be sold by a prosumer may be limited based on the amount of power generated. Prosumers may be required to certify that power can be purchased. Prosumers may be required to certify that electricity can be sold.

A power generation business operator can purchase and sell products, and may include users who only sell generated power without self-use. The amount of electricity that can be sold by a power generation company may be limited based on the amount of power generated. In an embodiment, the limit on the amount of power available for sale to the power generation service provider may be smaller than the limit on the amount of power available for sale to the prosumer. Generators may not need certification as to whether electricity can be purchased. Power generators may be required to certify whether electricity can be sold.

An operator operating a small distributed resource trading market (for example, an intermediary operator (1)) can manage the transaction history of the market participants (2). The market participant (2) can check the transaction history through the participating small-scale distributed resource transaction program (software or application). In one embodiment, the transaction history may include a listing and details for each listing.

Since electricity bills are settled on a monthly basis, the calculation of profit or loss from electricity transactions must be aggregated on a monthly basis. Taking this into account, the transaction history list can be organized by grouping individual transactions on a monthly basis.

Each item of the transaction history list may include purchase power, purchase amount, sales power, sales amount, and profit or loss from power transactions by synthesizing information on transactions included in the month.

Details of each item in the transaction history list may include details of individual transactions and profit and loss status.

Details of individual transactions may include information on the transaction number, the date the transaction was made, the seller, the amount of electricity purchased, the purchase unit price, and the purchase price.

The profit and loss status may include data on the amount of electricity used, the amount of power generation, and the amount of electricity purchased, and the profit or loss from the power transaction calculated based on the data, and a detailed description thereof will be described below with reference to FIGS. 2 and 3.

2 is an example of a screen of profit and loss status due to power transaction. 3 is a flowchart illustrating a method of trading small-scale distributed resources according to an embodiment of the present invention.

2 and 3, the small-scale distributed resource transaction method relates to a transaction method applicable to a platform for trading small-scale distributed resources, and may be applied to a settlement system of a P2P power transaction system implemented in various ways. The small-scale distributed resource transaction method can be executed through a computer program stored in a computer-readable storage medium.

In one embodiment, the small-scale distributed resource transaction method includes obtaining the total amount of power used by the prosumer participating in the power transaction (S100), obtaining the total amount of power generated including the amount of power generated by the prosumer, the amount of power generated by the prosumer, and the amount of power surplus ( S200), obtaining at least one or more of the amount of electricity purchased in the market and the amount of electricity purchased in the shortfall in sales corresponding to the amount of electricity purchased by the prosumer (S300), calculating an electricity rate corresponding to the total amount of used electricity (S400), after the power transaction The step of calculating the electricity rate (S500), the step of calculating the total amount of electricity purchased through the electricity transaction (S600), the step of calculating the total amount of electricity sold through the electricity transaction (S700), and It may include a step (S800) of calculating a profit or loss due to the electricity transaction based on the electricity rate, the electricity rate after the electricity transaction, the total electricity purchase amount, and the total electricity sales amount.

The profit/loss status may include data on the total amount of electricity used, the total amount of power generation, and the amount of electricity purchased, and the profit or loss from the electricity transaction calculated based on the data.

The total amount of power used may include the total amount of power actually used during a unit period (for example, on a monthly basis) in which profit or loss is calculated.

The total amount of power generation may be the sum of the amount of power generated in the month through the power generation facility. Here, the power generation facility may mean a small-scale distributed resource. The small-scale distributed resource may include at least one or more of a renewable energy facility, an electric storage device, or an electric vehicle. The renewable energy facility may include a power generation facility using at least one of hydrogen energy, fuel cell, solar energy, wind power, hydropower, or marine energy of a predetermined scale.

The total amount of power generation may include sales power generation, self-use power generation, and surplus power. That is, the total amount of power generation can be expressed as follows.

Total power generation = sales power generation + self-use power generation + surplus power

In the above equation, the amount of power surplus may be either an amount of surplus power transmitted to KEPCO or an amount of surplus power transmitted to an intermediary service provider. In one embodiment, the amount of surplus power may be measured through a separate meter for surplus power.

The processing method for the surplus power relates to the processing method for the surplus power remaining after sale and self-use among the generated power, and can be divided into a case of transmitting to KEPCO and a case of transmitting to an intermediary.

In the case of transmitting by KEPCO, it may include a method of transmitting surplus power to KEPCO and making an offset transaction. Offset transaction refers to a system in which the surplus power remaining after self-use of the generated power is transmitted to KEPCO and discounted by the amount corresponding to the amount of power transmitted to KEPCO within the power rate limit.

In the case of transmitting to an intermediary business, a method of transmitting surplus power to the intermediary business and selling them in a lump may be included. The surplus power can be handled in a way that the intermediary purchases collectively through a contract with the intermediary for the surplus power remaining after the sale and self-use of generated electricity.

When surplus power is transmitted to a brokerage service provider, information on the price per unit power for surplus power is required, and the price per unit power for surplus power can be determined by a contract between the seller and the broker.

The sales power generation may include the total amount of power generation sold through the small-scale distributed resource trading market during a predetermined period (ie, the month) among the total power generation of the prosumer.

The amount of power generated by self-use may include the total amount of power generated by the power generation entity directly used by the power generation entity without being transmitted to KEPCO or not transmitted to an intermediary among the remaining power generation sold in the month. The amount of electricity generated by self-use can be expressed as follows.

Self-use power generation = Total power generation-Sales power generation-Surplus power

In the above equation, the amount of power surplus may be either an amount of surplus power transmitted to KEPCO or an amount of surplus power transmitted to an intermediary service provider.

The amount of electricity purchased in the market may include the amount of electricity purchased in the month through a small distributed resource trading market in which electricity is traded.

A prosumer or power generation business operator who sells electricity through a small-scale distributed resource transaction market is unable to generate some or all of the electricity generation for which the sales contract is concluded because the actual generation amount is less than the expected generation amount. Can preserve.

The amount of electricity purchased from the shortfall in sales may include the amount of electricity purchased from an intermediary in order to preserve the amount of electricity for which a sales contract has been concluded when the actual generation amount of the prosumer is less than the expected generation amount.

The electricity rate corresponding to the total amount of electricity used may be calculated based on an electricity rate calculation formula corresponding to the electricity rate calculation standard of KEPCO.

After the electricity transaction, the electricity rate is based on KEPCO's electricity rate, excluding the amount of electricity purchased through the small-scale distributed resource transaction market, the amount of electricity generated by the company, and the amount of electricity remaining after self-use and transmitted to KEPCO from the total amount of electricity used for a month. It may include.

In one embodiment, the electricity rate after the electricity transaction is based on the electricity rate calculation formula corresponding to the electricity rate calculation standard of KEPCO, and the total amount of electricity used minus the amount of electricity purchased in the market, the amount of electricity generated by self-use, and the amount of surplus electricity transmitted to KEPCO. It can be obtained by calculating an electric charge corresponding to the amount of electricity. In other words, the electricity rate after the electricity transaction can be expressed as follows.

Electricity charge after electricity transaction = Electricity rate based on KEPCO for [total power consumption-market purchase power-self-use power generation-surplus power (transmission of KEPCO)]

In the above equation, the amount of power surplus may be the amount of power surplus transmitted to KEPCO.

The total amount of electricity purchase may include the sum of the amount required to purchase electricity in the small-scale distributed resource trading market and the amount required to purchase from an intermediary service provider to preserve the sales volume in case of insufficient power generation.

In an embodiment, the total amount of power purchase may include a value obtained by adding a purchase amount corresponding to the amount of power purchased in the market and a purchase amount corresponding to the amount of power purchased in a shortage. In other words, the total amount of electricity purchased can be expressed as follows.

Total power purchase = purchase amount of power purchased in the market + purchase amount of purchased power in shortage

The total amount of electricity sales may include the total amount of sales sold through the small-scale distributed resource trading market in the month and the sum of sales received by sending (selling) surplus electricity to the brokerage business.

In an embodiment, the total amount of electricity sales may include a sales amount corresponding to the sales generation amount and a value obtained by adding the sales amount corresponding to the amount of surplus power transmitted to the intermediary. In other words, the total amount of electricity sales can be expressed as follows.

Total amount of electricity sales = sales amount of sales generation + sales amount of surplus electricity (transmitted by intermediary)

In the above equation, the amount of surplus power may be the amount of surplus power transmitted to the broker.

The profit or loss from electricity transaction may include a value obtained by subtracting the total amount of electricity bills and electricity purchases after the electricity transaction from the electricity rate corresponding to the total amount of electricity used, and adding the total amount of electricity sales.

On the contrary, the profit or loss from the electricity transaction may include the electricity rate corresponding to the total amount of electricity used, minus the total electricity rate and purchase amount after the electricity transaction, add the total electricity sales amount, and subtract the monthly maintenance fee (fixed cost). .

In other words, the profit or loss from electricity transaction can be expressed as follows.

Profit and loss from electricity trading = a-(b + c) + d-e

Here, a denotes an electric charge corresponding to the total amount of power used, b denotes an electric charge after a power transaction, c denotes a total amount of electric power purchase, d denotes a total amount of power sales, and e denotes a monthly maintenance cost (fixed cost).

The present invention described above has been described with reference to the embodiments shown in the drawings, but these are only exemplary, and those of ordinary skill in the art will appreciate that various modifications and variations of examples are possible therefrom. However, such a modification should be considered to be within the technical protection scope of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: Broker 2: market participants

Claims (18)

In the power transaction of small-scale distributed resources,
Obtaining a total amount of power used by a prosumer participating in the power transaction;
Acquiring a total power generation amount including sales power generation amount, self-use power generation amount, and surplus power amount of the prosumer;
Acquiring at least one of a market purchase power amount and a sales shortfall purchase power amount corresponding to the amount of power purchased by the prosumer;
Calculating an electric charge corresponding to the total amount of power used;
Calculating an electric charge after the electric power transaction;
Calculating a total amount of electricity purchased through the electricity transaction;
Calculating a total amount of electricity sold through the electricity transaction; And
Comprising the step of calculating a profit or loss resulting from the power transaction based on an electric charge corresponding to the total amount of used electric power, an electric charge after the electric power transaction, the total electric power purchase, and the total electric power sales. The method of claim 1, wherein the small-scale distributed resource
Including at least one or more of a renewable energy facility, an electric storage device, or an electric vehicle,
The renewable energy facility comprises a power generation facility using at least one of hydrogen energy, fuel cell, solar energy, wind power, hydropower, or marine energy of a predetermined scale. The method of claim 1, wherein the prosumer is
A method of trading small-scale distributed resources, characterized in that at least one transaction of selling or purchasing power generated from the small-scale distributed resources is performed. The method of claim 1,
The sales generation amount includes generation amount sold through the power transaction within a predetermined period of the total generation amount,
The self-use power generation amount includes the power generation amount used by the prosumer among the remaining power generation amount sold within the predetermined period of the total power generation amount,
The surplus power amount includes a value obtained by subtracting the sales power generation amount and the self-use power generation amount from the total power generation amount,
The amount of power surplus is transmitted to either KEPCO or an intermediary service provider. The method of claim 4,
The amount of power purchased in the market includes the amount of power purchased through the power market in which the power transaction is made,
Wherein the amount of power purchased for the shortfall in sales includes an amount of power purchased from an intermediary company in order to preserve the amount of power for which a sales contract has been concluded when the actual power generation amount of the prosumer is less than the expected power amount. The method of claim 5, wherein calculating an electric charge corresponding to the total amount of power used
A small-scale distributed resource transaction method, characterized in that, based on an electricity rate calculation formula corresponding to the electricity rate calculation standard of KEPCO, an electricity rate corresponding to the total amount of used electricity is calculated. The method of claim 5, wherein calculating an electricity rate after the electricity transaction
Electricity rate corresponding to the amount of electricity obtained by subtracting the amount of electricity purchased from the market, the amount of power generated by the self-use, and the amount of surplus power transmitted to the KEPCO based on the electricity rate calculation formula corresponding to the electricity rate calculation standard of KEPCO Characterized in that to calculate, small-scale distributed resource transaction method. The method of claim 5,
The total amount of power purchase above is
Includes a value obtained by adding a purchase amount corresponding to the amount of electricity purchased in the market and a purchase amount corresponding to the amount of electricity purchased in the shortfall,
The total amount of electricity sales above is
And a value obtained by adding a sales amount corresponding to the sales generation amount and a sales amount corresponding to the surplus power transmitted to the intermediary service provider. The method of claim 5, wherein calculating profit or loss due to the power transaction comprises:
And a value obtained by subtracting the total amount of electricity purchased and the electricity price after the electricity transaction from the electricity rate corresponding to the total amount of electricity used, and adding the total amount of electricity sales. In the power transaction of small-scale distributed resources,
Obtaining a total amount of power used by a prosumer participating in the power transaction;
Acquiring a total power generation amount including sales power generation amount, self-use power generation amount, and surplus power amount of the prosumer;
Acquiring at least one of a market purchase power amount and a sales shortfall purchase power amount corresponding to the amount of power purchased by the prosumer;
Calculating an electric charge corresponding to the total amount of power used;
Calculating an electric charge after the electric power transaction;
Calculating a total amount of electricity purchased through the electricity transaction;
Calculating a total amount of electricity sold through the electricity transaction; And
In order to execute the step of calculating the profit or loss due to the power transaction based on the electric charge corresponding to the total amount of electricity used, the electric charge after the electric power transaction, the total electric power purchase, and the total electric power sales, a computer-readable storage medium Stored computer programs. The method of claim 10, wherein the small-scale distributed resource
Including at least one or more of a renewable energy facility, an electric storage device, or an electric vehicle,
The new and renewable energy facility includes a power generation facility that uses at least one of hydrogen energy, fuel cell, solar energy, wind power, water power, or marine energy of a predetermined scale, and is stored in a computer-readable storage medium. program. The method of claim 10, wherein the prosumer is
A computer program stored in a computer-readable storage medium, characterized in that performing at least one transaction of selling or purchasing power generated from the small-scale distributed resources. The method of claim 10,
The sales generation amount includes generation amount sold through the power transaction within a predetermined period of the total generation amount,
The self-use power generation amount includes the power generation amount used by the prosumer among the remaining power generation amount sold within the predetermined period of the total power generation amount,
The surplus power amount includes a value obtained by subtracting the sales power generation amount and the self-use power generation amount from the total power generation amount,
A computer program stored in a computer-readable storage medium, characterized in that the surplus power is transmitted to either KEPCO or an intermediary service provider. The method of claim 13,
The amount of power purchased in the market includes the amount of power purchased through the power market in which the power transaction is made,
The amount of power purchased for the shortfall in sales includes an amount of power purchased from an intermediary company in order to preserve the amount of power for which a sales contract has been concluded when the actual power generation amount of the prosumer is less than the expected power amount. program. The method of claim 14, wherein calculating an electric charge corresponding to the total amount of power used
A computer program stored in a computer-readable storage medium, characterized in that the electric charge corresponding to the total amount of used electric power is calculated based on an electric charge calculation formula corresponding to the electric charge calculation standard of KEPCO. The method of claim 14, wherein calculating an electricity rate after the electricity transaction
Electricity rate corresponding to the amount of electricity obtained by subtracting the amount of electricity purchased from the market, the amount of power generated by the self-use, and the amount of surplus power transmitted to the KEPCO based on the electricity rate calculation formula corresponding to the electricity rate calculation standard of KEPCO A computer program stored in a computer-readable storage medium, characterized in that to calculate. The method of claim 14,
The total amount of power purchase above is
Includes a value obtained by adding a purchase amount corresponding to the amount of electricity purchased in the market and a purchase amount corresponding to the amount of electricity purchased in the shortfall,
The total amount of electricity sales above is
A computer program stored in a computer-readable storage medium, characterized in that it comprises a value obtained by adding a sales amount corresponding to the sales generation amount and a sales amount corresponding to the surplus power transmitted to the intermediary. The method of claim 14, wherein calculating the profit or loss due to the power transaction
A computer program stored in a computer-readable storage medium, comprising a value obtained by subtracting the total amount of electricity purchases after the electricity transaction from the electricity rate corresponding to the total amount of electricity used, and adding the total amount of electricity sales.

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