KR101432125B1 - Method and system for charging power rates - Google Patents

Abstract

The present invention relates to a method of controlling an electric power system, comprising the steps of: receiving a power consumption by a time slot of a customer during a unit period; accumulating electric power consumption by the time slot to calculate a cumulative electric power consumption; Wherein the electricity rate per unit electric power is increased in proportion to the cumulative electric power consumption of the consumer during the unit period, and in the reverse progressive section in which the cumulative electric power consumption is less than a preset electric power consumption, Of the power consumption of the customer.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of calculating a power charge, and more particularly, to a method of calculating a power charge of a customer connected to a power grid.

Currently, the electricity rates that are generally applied apply different electricity tariffs, such as residential, general, industrial, educational, and agricultural, depending on the type of customer.

Among these types of customers, the electricity bill for residential use applies the progressive agent, which increases the electricity rate per unit electric power charge as the cumulative electric power consumption increases. These progressive agents demonstrate the net effect of suppressing the power usage of the customer.

Table 1 below shows the electricity (low-voltage) electricity bill that applies to customers at KEPCO.

Cumulative power usage Fee per unit electricity (KRW / KWh) For the first 100kWh 57.3 Up to 100kWh 118.4 Up to 100kWh 175 Up to 100kWh 258.7 Up to 100kWh 381.5 Above 500kWh 670.6

FIG. 1 is a graph showing electricity charges per unit electric power amount versus accumulated electric power consumption of a customer when a progressive agent is applied, as shown in Table 1 above. Referring to FIG. 1, it can be seen that the electricity rate per unit electric power increases as the cumulative electric power consumption of the consumer increases. In addition, as the cumulative power consumption increases, the increase in the electricity rate per unit electric power is accelerated in the high-use period where the electric power consumption of the consumer is relatively high. Therefore, the consumer can suppress the power consumption so that the cumulative power consumption is not placed in the high-use period, thereby preventing waste of resources due to power generation nationwide. On the other hand, the change in the electricity rate per unit electric power of the low use period in this progressive agent shows that the electricity rate per unit electric power increases as the cumulative electric power consumption increases, but the rate of increase is lower than that in the high use period.

In this progressive agent, the use of electric power is suppressed so that cumulative electric power consumption is not used in the high-use period, but the electric power charge does not change much in comparison with the increase in cumulative electric power consumption in low-use period. have.

It is an object of the present invention to provide a method and system for calculating a power charge that can induce a reduction in power consumption of a customer even in a low use period in which cumulative power consumption is low.

In order to achieve the above-mentioned object, the present invention provides a method for controlling power consumption of a customer, comprising the steps of: receiving power consumption by a time slot of a customer during a unit period; accumulating power consumption by the time slot to calculate cumulative power consumption; And calculating an electricity rate per unit electric power, wherein the electricity rate per unit electric power is increased in proportion to the cumulative electric power consumption of the consumer during the unit period, and in the reverse progressive section in which the cumulative electric power consumption is less than a preset power consumption amount And the rate of increase of the electricity rate per unit electric power is reduced.

At this time, it is preferable that the predetermined power consumption is a customer reference load which is an average power consumption of a customer for a certain period.

In addition, it is preferable that the rate of increase of the electricity rate per unit electric power increases in the progressive section in which the accumulated electric power consumption exceeds the preset electric power consumption.

On the other hand, it is preferable that the magnitude of the change in the electricity rate per unit power of the backward progressive section and the progressive section with respect to the magnitude of the variation of the constant accumulated power usage based on the preset power usage amount is larger in the reverse progressive section.

The method may further include a reduction step of imposing an additional charge on the estimated electric power per unit electric power of the reverse progressive section when the cumulative electric power consumption exceeds the preset electric power consumption.

According to another aspect of the present invention, there is provided a method of controlling an electric power generating program, the method comprising the steps of: receiving an application for participation from a participant requesting participation of an inverse progressive power charge program; receiving power consumption by time of a participant application customer during a unit period; The method of claim 1, further comprising the steps of: calculating a cumulative power usage amount; and calculating an electricity fee per unit electric power for the electric power consumption by the time of the participation application customer, Wherein the rate of increase of the electricity rate per unit electric power decreases in a period in which the electric power consumption increases in proportion to a usage amount but the accumulated electric power consumption is less than a preset electric power consumption amount.

The method may further include receiving, from the participation application customer, any one type information selected from a plurality of pieces of electricity rate type information provided in advance to the participation application customer.

At this time, the type information includes an electricity rate per unit electric power corresponding to each cumulative electric power consumption value, an increase rate of electric charges per unit electric power in the reverse progressive section, an increase rate of electric charges per unit electric power in the progressive section, Or the like.

Also, the present invention provides a method for controlling a power consumption of a customer, comprising: a power consumption reception unit for receiving a power consumption of a customer by a time slot from a gateway installed in the customer; a cumulative power consumption calculation unit for calculating a cumulative power consumption of the customer by summing the power consumption by the time of the received customer; And a CBL calculating unit for calculating a customer reference load which is an average power consumption of a customer for a predetermined period of time, , It provides a system for calculating the electricity price of a customer who calculates the electricity rate per unit electric power according to the inverse progressive system in which the rate of increase of electric charges per unit electric power decreases as the cumulative electric power consumption increases.

In addition, the terminal may further include a reception terminal for receiving an application for participating in an inversely progressive power charge program from a user of the customer.

The present invention has an advantage in that it can induce reduction of electric power consumption of a customer even in a low use period where the cumulative power consumption is not large.

FIG. 1 is a graph showing a relationship between an electricity price per unit electric power and a power consumption amount by a general progressive agent.
FIG. 2 and FIG. 3 are block diagrams schematically illustrating a configuration of a system for calculating a power price of a customer according to an embodiment of the present invention.
4 is a graph showing power consumption of a customer by time slot.
FIG. 5 is a graph showing the relationship between the electricity rate per unit electric power and the cumulative electric power consumption of the consumer.
6 is a graph showing the relationship between the progressive rate and the cumulative power consumption of the customer.
7 is a flowchart illustrating a method of calculating a power charge of a customer according to an embodiment of the present invention.
8 is a flowchart illustrating a method of calculating a power charge of a customer according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

2, a description will be made of a system for calculating the electricity price of a customer according to an embodiment of the present invention.

Referring to FIG. 2, a customer electricity billing system according to an exemplary embodiment of the present invention may include an operation server 10 that calculates an electricity bill per unit electric power according to a cumulative power consumption of a customer. In addition, the gateway 20 may include a gateway 20 installed in the customer and transmitting the power usage amount of the customer to the operation server 10 by time zone. The smart tag 31 may further include a smart tag 31 installed in the household appliance 30 installed in the customer and transmitting the electric power consumption of each home appliance 30 to the gateway 20.

The operation server 10 is connected to the gateway 20 through a wired / wireless network. Also, the gateway 20 is connected to the smart tag 31 via a wired / wireless network. The home appliance (30) performs a desired function by using electric power flowing through a power line. The home appliance 30 includes all devices that consume power, including a refrigerator, an air conditioner, a washing machine, a television, an office machine, and the like.

The configuration of the operational server 10 and the gateway 20 will be described in detail with reference to FIG.

Referring to FIG. 3, the operation server 10 may include a power consumption receiving unit 11 for receiving a power consumption amount of a reception time by the gateway 20 from the gateway 20. In addition, it may include a database unit 12 for storing power consumption by time of a received customer. The system may further include a cumulative power usage calculation unit 13 for calculating a cumulative power consumption of the customer by summing the power consumption by the time of the received customer. Further, it may include an electricity bill calculating section 14 for calculating an electricity bill per unit electric power in accordance with the cumulative power consumption amount. In addition, it may include a CBL calculating unit 15 that calculates a customer baseline load (CBL) using the cumulative power consumption.

The gateway 20 may include a power consumption collecting unit 21 that receives the power consumption of each home appliance 30 from the smart tag 31 installed in each home appliance 30 in real time. And a power consumption transmitting unit 22 for collecting real-time power consumption of each of the collected home appliances and transmitting the power consumption by time slot of the customer to the power consumption receiving unit 11 of the operation server 10. [

Here, the power consumption by the time slot of the customer transmitted from the power consumption transmitting unit 22 to the power consumption receiving unit 11 means the total power consumption of the customer in the corresponding time slot. In this case, the time period means unit time, and the unit time may be seconds, minutes, or hours, but is not limited thereto. That is, the power consumption transmitting unit 22 transmits the power consumption of the customer to the power consumption receiving unit 11 every second, every minute, or every hour. For example, when the unit time (time zone) is one minute, the power consumption of the customer for one minute is transmitted to the power consumption reception unit 11 of the operating server 10 every minute.

In the present embodiment, the smart tags 31 are installed in the respective home appliances 30 to transmit the power consumption of the home appliances 30 to the gateway 20. However, It is not. That is, the power consumption receiver of the gateway may receive power consumption by the time slot of the customer from the power meter of the customer installed in the switchboard.

The power consumption receiving unit 11 of the operating server 10 receives power consumption by time of the customer and the data base 12 stores the power consumption of the received power by time. Referring to FIG. 4, the power consumption by the time slot of the customer may vary with time. That is, when the electric appliances are used frequently in the corresponding time zone, the electric power consumption of the consumer increases, and when the electric appliances are used less, the electric power consumption of the consumer decreases.

The cumulative power usage calculating unit 13 calculates the cumulative power consumption of the cus- tomer by using the power consumption by the time slot of the cus- tomer stored in the database unit 12. [ The cumulative power usage calculation unit 13 calculates the cumulative power consumption by summing up the power consumption in each time period. In Fig. 4, the cumulative power consumption of the customer between t1 and t2 can be obtained by statistically dividing the power consumption of the customer by the time period from t1 to t2.

Referring to FIG. 5, the calculation of the electricity rate per unit electric power according to the cumulative electric power consumption will be described.

The electricity bill calculating section 14 calculates the electricity bill per unit electric power according to the accumulated electric power consumption amount. More specifically, the electricity bill calculating section 14 calculates an electricity bill per unit electric power by applying an inverse progressive agent in an inverse progressive section in which the cumulative power consumption amount is less than a predetermined power consumption amount (Pre-Determined Load (PDL)). Further, the electricity bill calculating section 14 calculates the electricity bill per unit electric power by applying the progressive agent in the progressive section where the accumulated electric power consumption exceeds the preset power consumption amount. Herein, the inverse progressive means that the rate of increase of the electric charge per unit electric power decreases as the cumulative electric power consumption increases, and the progressive means that the rate of increase of the electric charge per unit electric power increases as the cumulative electric power consumption increases. Referring to FIG. 5, as the cumulative power consumption of the consumer increases, the electricity rate per unit electric power increases. However, as the cumulative power consumption increases, the rate of increase of the electricity rate per unit electric power decreases in the reverse progressive section based on the preset power usage amount (PDL). Also, in the progressive section, as the cumulative power consumption decreases, the rate of increase of the electricity rate per unit electric power increases. The customer's electricity billing system according to an embodiment of the present invention can suppress the power consumption of the customer even in a section where cumulative power consumption is relatively small by providing a reverse progressive section separately from the progressive section based on a preset power consumption amount. That is, when the conventional progressive agent or the progressive section is applied in a batch, the electric power charge per unit electric power is small in the section where the cumulative electric power consumption is relatively small, so that it is not possible to motivate the consumer to suppress the electric power consumption. The electricity rate calculation system according to the embodiment calculates the electricity rate per unit electric power as the cumulative electric power consumption is lower by setting the reverse progressive section, thereby inducing motivation for suppressing the electric power consumption of the consumer even in the section where the cumulative electric power consumption is small, It is possible to reduce the amount of electric power used to prevent waste of national resources.

6, the relationship between the progression rate of the electricity billing system according to an embodiment of the present invention and the cumulative power consumption of the consumer is shown in FIG. Referring to FIG. 6, the progression rate gradually decreases before the cumulative power usage amount reaches a predetermined power usage amount (PDL), and the progression rate increases when the cumulative power usage amount exceeds a predetermined power usage amount (PDL).

On the other hand, it is preferable that the change in the progression rate of the reverse progression section is larger than the change in the progression rate of the progression section on the basis of the preset power usage amount (PDL). That is, it is preferable that the change of the progressive rate according to the cumulative power usage amount is larger in the reverse progressive section than the progressive section. It is preferable that the cumulative power usage change a1 of the backward progressive section with respect to the same progression rate a3 is larger than the progressive power usage variation a2 of the progressive section on the basis of the preset power usage amount PDL. As described above, the change in the progressive rate in the reverse progressive section is set to be larger than the change in the progressive rate in the progressive section, thereby advantageously restraining the use of electric power of the customer. That is, it is easier for the customer to reduce the electric power consumption of the consumer since the lower electric power consumption per unit electric power can be applied to the consumer as the electric power consumption is suppressed.

에 대한 역누진 구간과 누진 구간의 단위전력당 전기요금의 변화의 크기는 역누진 구간에서 더 큰 것이 바람직하다. 즉, 미리 설정된 전력사용량에서

만큼 전력사용량의 감소가 발생할 때, 이에 대응한 역누진 구간의 단위전력당 전기요금의 변화의 크기(

)은, 미리 설정된 전력사용량에서

만큼 전력사용량의 증가가 발생할 때, 이에 대응한 누진 구간의 단위전력당 전기요금의 변화의 크기(

) 보다 더 큰 것이 바람직하다.
Referring again to FIG. 5, the magnitude of the change in the cumulative power usage amount based on the preset power usage amount (PDL)

It is preferable that the magnitude of the change in the electric charge per unit electric power of the progressive section and the magnitude of the change in the electric charge in the progressive section is larger in the reverse progressive section. In other words,

The amount of change in the electricity rate per unit electric power of the reverse progressive section corresponding to the decrease

) Is set at a predetermined power consumption

The amount of change in the electricity rate per unit electric power of the progressive section corresponding to the increase

).

Meanwhile, it is preferable that the predetermined power usage (PDL) is a customer baseline load (CBL) in a customer's electricity billing system according to an exemplary embodiment of the present invention. The customer reference load is calculated by the CBL calculating section 15. [ The customer reference load means the average power consumption of a customer for a certain period of time. The customer reference load can be calculated by measuring the power consumption of the customer for a certain period of time and by averaging the power consumption of the customer during the certain period of time. The predetermined period may be a day, a week, a month, or a year, but is not limited thereto. For example, if a certain period is 100 days and a unit period is 10 days, the power consumption of the customer for 100 days is measured and divided by the number of times of the unit period of 10 to calculate the customer reference load which is the average power consumption of the 100- , Where the unit of customer reference load is KW / 10 days. Alternatively, if the period is 30 days and the unit period is 1 day, the power consumption of the customer for 30 days can be measured and divided by the number of times of the unit period, 10, to calculate the average of the power consumption of the customer for 30 days. , The average power consumption of the consumer The average power consumption of the average consumer is KW / day.

If the predetermined amount of power used is the customer reference load, the electricity billing unit charges the electricity bill per unit electric power according to the reverse progression agent in the period when the cumulative power consumption of the customer is less than the customer reference load, In the section, electric charges are charged per unit electric power according to the progressive agent. In this case, the cumulative power consumption refers to the power consumption of the customer accumulated during the unit period of the customer reference load. That is, the cumulative power consumption is again calculated when the unit period ends. For example, in the case where the unit period of the customer reference load is 1 day, the customer reference load is 15 KW / day, and the cumulative power consumption of the first day is 13 KW, the inverse progressive agent is applied to the cumulative power consumption of the first day . The cumulative power usage of the second day is newly calculated at the second day of the arithmetic. When the cumulative power consumption of the second day is 20 KW, the inverse progressive system is used for the usage up to 15 KW. For the usage from 15 KW to 18 KW A progressive agent is applied.

According to another embodiment of the present invention, the electricity price calculation system of the customer may further include a customer terminal (not shown) receiving the participation application of the inverse progressive electricity price program from the user of the customer. According to the present embodiment, the customer can apply for participation of the inverse progressive electricity rate program through the receiver terminal, and the inverse progressive electricity rate program is applied to the participant applicant. The customer terminal receives an application for participating in the progressive power tariff program from a user of the customer and transmits the application to the operation server 10. The operating server receives the participation application from the participation application customer, and applies the inverse progressive power programming program to the participation application user.

Hereinafter, a method of calculating a power charge of a customer according to an embodiment of the present invention will be described with reference to FIG.

A method of calculating a power charge for a customer according to an embodiment of the present invention includes: receiving a power usage amount of each time slot of a customer during a unit time period (S10); calculating a cumulative power usage amount by accumulating the power usage amount by each time slot (S30) (S40) of calculating an electricity rate per unit electric power with respect to the electric power consumption by the time slot of the customer.

In step S10, the total power consumption of the customer for each time slot is received. At this time, the power consumption per time slot is transmitted to the power consumption reception unit 11 of the operation server 10 by the power consumption transmission unit 22 of the gateway 20 installed in the customer. At this time, the received power consumption per time slot is stored in the database unit. Here, the power consumption per time unit means the total power consumption of the customer per unit time. The unit time may be seconds, minutes, or hours, but is not limited thereto. The step of receiving power usage by time slot is performed for a unit time period, where the unit time period may be, but is not limited to, day, week, month, or year.

In step S20 of calculating the cumulative power usage, the cumulative power consumption of the customer is calculated by accumulating the power usage by the received time zone. The cumulative power usage can be calculated by summing up the power usage by time zone.

In step S30 (S40) of calculating the electricity rate per unit electric power, the electricity rate per unit electric power is calculated with respect to the cumulative electric power consumption of the customer. At this time, the electricity rate per unit electric power is increased in proportion to the cumulative electric power consumption of the customer during the unit period, but the increase rate of the electricity rate per unit electric power is decreased in the reverse progressive interval in which the cumulative electric power consumption is less than the preset electric power consumption The inverse progressive agent is applied (S30)

If the unit period does not expire in the unit time period (S50), the cumulative power usage is compared with the preset power usage amount, and if the cumulative power usage is less than the preset power usage amount, the inverse progressive agent is applied. When the unit period expires, the cumulative power consumption is again calculated using the expiration time as a new starting point.

On the other hand, it is preferable that the predetermined power consumption amount is a customer reference load, which is the average power consumption of the customer for a certain period of time. The customer reference load is calculated by the CBL calculating section 15. [ The customer reference load can be calculated by measuring the power consumption of the customer for a certain period of time and by averaging the power consumption of the customer during the certain period of time. The predetermined period may be a day, a week, a month, or a year, but is not limited thereto.

On the other hand, in the progressive section in which the cumulative power consumption exceeds the preset power consumption amount, the progressive agent is applied to calculate the electricity rate per unit electric power. (S40) The progressive agent means that the rate of increase of electric charges per unit electric power increases as the cumulative electric power consumption increases it means.

In addition, it is preferable that the magnitude of the change of the electricity rate per unit power of the progressive section and the magnitude of the change of the constant cumulative power usage based on the preset power usage amount is larger in the reverse progressive section. For example, assuming that the magnitude of a change in a certain cumulative power demand is 10 KW, when the 10 KW is used less based on the preset power consumption, the change in the electricity rate per unit electric power is 10 KW It is desirable that the change in the electricity rate per unit electric power is larger when used more. Therefore, the lower the electricity consumption of the customer, the more incentive (reduction of the electricity rate per unit electric power) becomes, and the consumer can be more motivated to suppress the electric power use.

Meanwhile, according to an embodiment of the present invention, when the cumulative power usage exceeds the preset power usage, a reduction step S70 is performed in which an additional fee is charged to the estimated electricity price per unit power of the progressive reverse progression period .

It is an object of the present invention to impose a high incentive and suppress power consumption of a customer as the electric power use is reduced by providing an inverse progressive section. In order to meet the above-mentioned purpose and to suppress the power use, it includes a reduction step of removing the incentive applied in the reverse progressive section when the power consumption of the customer exceeds the preset power consumption amount. In the reduction step, when the cumulative power consumption of the customer exceeds the preset power consumption amount, an additional charge is applied to the electricity charge per unit electric power applied in the reverse progressive section. For example, in the case where the electricity rate per unit electric power according to the cumulative electric power consumption amount is calculated as 30 KW-10 Yuan, 40 KW-15 Yuan, 50 KW 18 Yuan in the reverse progressive section, when the cumulative electric power consumption exceeds the preset electric power consumption , And a surcharge of 2 won will be imposed on them to charge 30KW-12 won, 40KW-17 won, and 50KW-20 won. At this time, the additional charge may be imposed to charge a certain additional charge in all sections of the reverse progressive section, or to increase the additional charge as the cumulative power consumption increases.

Referring to FIG. 8, a method of calculating a power charge of a customer according to another embodiment of the present invention will be described.

A method for calculating a power price of a customer according to another embodiment of the present invention includes receiving a participation application from a participant application customer who wants to participate in an inverse progressive power charge program (S60) (S30) of calculating the electric power consumption per unit electric power of the participant applicant by the time slot (S30) ) ≪ / RTI > (S40). The method may further include a reducing step (S70) of imposing an additional charge on the estimated electric power per unit electric power of the progressive reverse progression section when the cumulative electric power consumption exceeds a preset electric power consumption amount.

In this embodiment, the participation application is received from the participant applicant for the inverse progressive electricity rate program, and the inverse progressor of the electricity rate per unit electric power is applied to the participant applicant. In the step of receiving the participation application (S60), the participation application of the participating application client is received from the client terminal. The participant application client can input the participation application through the inter-user terminal provided in the client, and the input participation application is transmitted to the operation server 10. [

The steps S30, S40, and S70 of calculating the electricity bill per unit electric power are performed in the same manner as the above-described embodiment The detailed description will be omitted. That is, the features that distinguish the reverse progressive section from the progressive section on the basis of the preset power consumption amount and set the rate of change of the electricity rate per unit electric power in each section are the same as those of the above-described embodiment.

Meanwhile, in the present embodiment, it may further include providing electric fee type information per unit electric power for a plurality of electric power usage amounts by time slot to the participating electric appliance user. The method may further include receiving any one of the plurality of types of electricity rate type information selected from the participation application customers.

The customer is provided with electricity rate type information per unit electric power for a plurality of electric power consumption per hour. The electricity rate type information per unit electric power consumption per hour is the electricity rate per unit electric power corresponding to each accumulated electric power consumption value, the rate of increase of electricity rate per unit electric power in the reverse progressive section, , And a penalty at the reduction step (additional charge). Electricity rate type information per unit electric power consumption for a plurality of time zones is set so that at least a part of the detailed information included in the above type information is set to be different from each other. For example, in any type of information, the decrease in the rate of increase of the electricity rate per unit electric power is slow in the reverse progressive section, and the increase rate of the electric rate per unit electric power is slow in the progressive section, The increase rate of the electricity rate per unit electric power is steep, and the increase rate of the electric rate per unit electric power can be set steeply even in the progressive section. The user of the cus- tomer can select any of these types of information according to the usage pattern. The plurality of type information may be provided to a user through a customer terminal provided in the customer, and the user may select any one of the type information through the customer terminal. The selected type information is transmitted to the operation server.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

10 Operation server 11 Power usage receiver
12 Database part 13 Cumulative power usage calculation part
14 Electricity charge government departments 15 CBL calculation department
20 Gateway 21 Power consumption collecting unit
22 Power Consumption Transmitter 30 Home Appliances

Claims (10)

Receiving a power usage by a time zone of a customer for a unit period;
Accumulating electric power consumption by the time slot to calculate a cumulative electric power consumption; And
And calculating an electric charge per unit electric power for the electric power consumption by the time slot of the customer,
The increase rate of the electricity rate per unit electric power decreases in the reverse progressive section in which the electricity rate per unit electric power is increased in proportion to the cumulative electric power consumption of the consumer during the unit period but the accumulated electric power consumption is less than the preset electric power consumption amount A method of calculating a power charge of a customer. The method according to claim 1,
Wherein the predetermined power usage amount is a customer reference load, which is an average power usage amount of a consumer during a predetermined period. The method according to claim 1,
Wherein the electricity rate per unit electric power is increased in a progressive section in which the cumulative electric power consumption exceeds a preset electric power consumption rate. The method of claim 3,
Wherein the magnitude of the change in the electricity rate per unit power of the progressive section and the magnitude of the change in the constant cumulative power usage based on the preset power usage amount is larger in the reverse progressive section, Way. 5. The method of claim 4,
Further comprising a reduction step of imposing an additional charge on the estimated electric power per unit electric power of the reverse progressive section when the cumulative electric power consumption exceeds the preset electric power consumption amount . Receiving an application for participation from a participant requesting to participate in an inverse progressive power program;
Receiving a power usage amount per time slot of a participating application user during a unit period;
Accumulating electric power consumption by the time slot to calculate a cumulative electric power consumption; And
And calculating an electricity rate per unit electric power with respect to the electric power consumption by the time slot of the participation application customer,
The electricity rate per unit electric power is increased in proportion to the cumulative electric power consumption of the participant applicant during the unit period but the increase rate of the electric power per unit electric power is decreased in the section where the cumulative electric power consumption is less than the preset electric power consumption amount A method of calculating a power charge of a customer. The method according to claim 6,
Further comprising the step of receiving from the participant application a type information of a selected one of a plurality of electric charge type information per unit electric power provided in advance to the participation application customer. 8. The method of claim 7,
The type information includes at least one of an electricity rate per unit electric power corresponding to each cumulative electric power consumption value, an increase rate of electric charges per unit electric power in the reverse progressive section, an increase rate of electric charges per unit electric power in the progressive section, Wherein the method comprises the steps of: A power usage receiving unit for receiving a power usage amount of a customer by a time slot from a gateway installed in the customer;
A cumulative power usage calculation unit for calculating a cumulative power consumption of the customer by summing the power consumption by the time of the received customer;
An electricity bill calculating unit for calculating an electricity bill per different unit electric power according to cumulative electric power consumption; And
And a CBL calculation unit for calculating a customer reference load, which is an average power consumption of the customer for a predetermined period of time,
Wherein the electricity rate calculation unit calculates an electricity rate per unit electric power according to an inverse progressive regime in which an increase rate of the electricity rate per unit electric power decreases as the cumulative electric power consumption increases in an interval where the cumulative electric power consumption is less than a customer reference load. 10. The method of claim 9,
Further comprising a customer terminal for receiving an application for participating in an inverse progressive power program from a user of the customer.

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