JP2017027587A - Billing management system, and billing management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a billing management system by which electric energy stored in power consumers' power storage facilities is returned to the supply line side and the electric power business pays remunerations for reverse power flow to its consumers.SOLUTION: In a billing management system that manages electric power charges billed to consumers having power storage facilities, the power supplier has a contract enabling the supplier to use reverse power flow of power stored in each such consumer's power storage facility in some or all time zones. The system comprises a smart meter for measuring the wattage sold from the power storage facility to the power supplier, a transmitter for transmitting to the power supplier's billing management system via a first route of the smart meter the wattage sold from the power storage facility to the power supplier or reverse power flow, and a calculator that calculates the sum payable by the power supplier to the consumer according to the wattage or the history of reverse power flow.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power storage facility installed in a consumer, by causing the electrical energy stored in the power storage facility to flow backward to the grid side, and effectively using the stored power from the electric utility as compensation. The present invention relates to a billing management system and a billing management method for paying a customer.

  In recent years, power storage facilities installed in consumers are increasing. By installing the power storage facility, it is possible to store the surplus power that cannot be consumed by the customer at that time among the peak power shift of the customer himself or the power generated by the solar power generation facility. In addition, when using power storage equipment, for example, commercial power is purchased and stored in the power storage equipment during times when the electricity charges set by the power supplier are low, and stored in the power storage equipment during times when electricity charges are high. Operation using the generated power is also possible. In this case, the consumer can obtain an economic merit (see, for example, Patent Documents 1 and 2).

JP 2014-30334 A Japanese Patent No. 5576218

  On the other hand, with regard to the power stored in the power storage equipment, in addition to consuming it by the customer itself, the economic advantage can be further increased by performing a peak power shift by supplying the power to the other consumer by flowing back to the grid. It is desired. At this time, no system has been established for how to return electricity charges to consumers who have provided electricity. Therefore, it is desirable to build a new electricity bill system.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a billing management system capable of giving economic benefits to consumers by using a new billing system for electricity charges. It is another object of the present invention to provide a billing management method.

  One aspect of the billing management system of the present invention is a billing management system for managing a power rate for a consumer having a power storage facility, wherein an electric power company reverses the power stored in the power storage facility from a consumer through a power line. A measuring unit that measures the amount of electricity flowing backward from the power storage facility, and a contract management system of the power distribution company using the first route of the measuring unit; A transmission unit that transmits the amount of electricity sold or the history of reverse power flow, a reception unit that receives the data, and a usage consideration from the power distribution company to the customer based on the history of the amount of electricity or reverse power flow. A calculation unit for calculating an amount to be paid;

  In one aspect of the billing management system of the present invention, the calculation unit calculates the usage consideration of the power storage facility from the contract contents, the history of reverse power flow, and the unit unit price, and performs rebate.

  In one aspect of the billing management system of the present invention, the calculation unit calculates based on a basic charge associated with the use of the power storage facility and a metered charge proportional to the amount of power that has flowed backward.

  In one aspect of the billing management system of the present invention, the calculation unit calculates based on a metered rate proportional to the amount of power that has flowed in reverse.

  In one aspect of the billing management system of the present invention, the calculation unit calculates based on a rule that pays a fixed amount as the power storage facility is used.

  One aspect of the billing management system of the present invention is a billing management system for managing a power rate for a consumer having a power storage facility, wherein an electric power company reverses the power stored in the power storage facility from a consumer through a power line. It is possible to use, and to the contract management system of the power distribution company using the measurement unit that measures the amount of electricity flowing backward from the power storage facility and the second route of the measurement unit, from the power storage facility to the power distribution company A transmission unit that transmits the amount of electricity sold or the history of reverse power flow, a reception unit that receives the data, and a usage consideration from the power distribution company to the customer based on the history of the amount of electricity or reverse power flow. It has a calculation part which calculates the amount of money to pay.

  In one aspect of the billing management system of the present invention, the calculation unit calculates a usage consideration for the power storage facility from contract contents, a history of backflow, and a unit unit price, and performs rebate.

  In one aspect of the billing management system of the present invention, the calculation unit calculates based on a basic charge associated with the use of the power storage facility and a metered charge proportional to the amount of power that has flowed backward.

  In one aspect of the billing management system of the present invention, the calculation unit calculates based on a metered rate proportional to the amount of power that has flowed in reverse.

In one aspect of the billing management system of the present invention, the calculation unit calculates based on a rule that pays a fixed amount as the power storage facility is used.
In one aspect of the billing management system of the present invention, the calculation unit is a unit price corresponding to a stage of the amount of power that flows backward, and the power for which the reverse flow is performed based on a unit price that increases as the amount of power increases. The usage consideration is calculated by calculating the charge for each stage of the quantity based on the unit price corresponding to the stage and obtaining the sum.
In one aspect of the billing management system of the present invention, the calculation unit calculates usage consideration based on power based on an amount of power represented by the received data or power determined according to equipment used by the consumer. .

  One aspect of the billing management system of the present invention is a billing management system that manages a power charge for a customer having a power storage facility, and that stores the power stored in the power storage facility in an electric business in a certain or all time zone. A contract that allows a consumer to use reverse power through a power line from a consumer, the smart meter measures the amount of electricity sold from the power storage facility to the electric utility, and the transmission unit communicates with the smart meter communication route The amount of electricity sold from the electricity storage facility to the electricity company or the history of reverse power flow is transmitted to the contract management system of the electricity company or power distribution company using the calculation unit. Based on the tidal current history, the amount of payment to be paid to the consumer from the electric power company or power distribution company is calculated.

The present invention was reversely flowed from the storage facility to the grid as a consideration for returning the benefits of the power generation company, transmission / distribution company, and electric power retailer to the customer who installed the storage system. This is a billing management system capable of paying a usage fee according to the amount of electric power. According to this, a consumer can enjoy an economic merit. In addition, when power generators, power transmission / distribution operators, and power retailers control consumer power storage systems for their own business operations, they are paying attention to the use of power storage systems. Can be included.
Furthermore, since the present invention produces merits for both consumers and businesses, it is possible to realize a power supply and demand mechanism using a storage battery that can be maintained with a high degree of satisfaction.

It is a figure which shows the structural example of the customer facility 10 in 1st Embodiment. It is a figure which shows the structural example of the charge management system 1 in 1st Embodiment.

<First Embodiment>
In the present embodiment, the power storage equipment installed in the consumer is not used only for the consumer itself, but the power stored in other consumers is also used by flowing back to the grid, It is intended to increase the economic merit of power storage equipment installed by consumers by receiving the consideration.
In this embodiment, the power value of the smart meter M attached to the consumer, which flows backward from the customer to the grid, is read, and the value is used for electricity using the A route (first route) of the smart meter. The amount of electricity sold from the power storage facility to the power company or the history of reverse tide is transmitted to the contract management system such as the personal computer, server, and cloud of the business.
Or, by using the C route (second route), by transmitting the amount of electricity sold from the power storage equipment to the new power, etc., or the history of reverse tide to a contract management system such as a new power, personal computer, server, cloud, etc. Then, an electricity bill system is constructed to pay usage consideration to consumers based on the amount of electricity or the history of reverse tide.

  Further, the discount amount (reduction amount) can be increased as the capacity of the storage battery of the power storage system increases. Since the capacity of the power storage system is larger, the load leveling effect and the supply and demand adjustment effect obtained by controlling the power storage system are larger, so it makes sense that the discount amount is calculated according to the capacity of the storage battery. ing.

Hereinafter, as a consumer for explaining the first embodiment, explanation will be made assuming a consumer facility of a general house. FIG. 1 is a diagram illustrating a configuration example of a customer facility 10 according to the first embodiment.
The customer facility 10 includes a power storage facility 11, a photovoltaic power generation facility 12, a distribution board 13, a load 14, a smart meter M, a power management unit 15, and a modem 16. The smart meter M includes a power meter for power purchase Mp and a power meter for power sale Mq.
The power storage facility 11 stores electric power input for charging, and discharges and outputs the stored electric power. The configuration of the power storage facility 11 is not limited, and may be a storage battery, a lithium ion capacitor, a flywheel, or the like.
The solar power generation facility 12 is one of power generation devices that use sunlight, which is renewable energy, and generates power by converting light energy into electric power by the photovoltaic effect. The photovoltaic power generation equipment 12 is installed in a place where sunlight is not easily shielded by other buildings, such as the roof of the customer facility 10. Thereby, the solar power generation facility 12 irradiates the surface on which the power generation element is disposed without being shielded from sunlight, and efficiently converts the irradiated sunlight into electric power.

The distribution board 13 is a power path switching unit that switches power paths.
The distribution board 13 can form an electric power path in the customer facility 10 so as to supply commercial power supplied from the outside to the load 14. Moreover, the distribution board 13 can form an electric power path in the customer facility 10 so as to supply the load 14 with the electric power generated by the solar power generation equipment 12.
Moreover, the distribution board 13 can form an electric power path in the customer facility 10 so as to charge the power storage equipment 11 with electric power supplied from one or both of commercial power and the solar power generation equipment 12. Moreover, the distribution board 13 can form an electric power path in the customer facility 10 so that the electric power output from the power storage equipment 11 by discharging is supplied to the load 14.
Furthermore, the distribution board 13 is configured to supply power generated by the photovoltaic power generation equipment 12 to the power storage equipment 11 in the other customer facilities 10 via, for example, a commercial power system. Can be formed. Moreover, the distribution board 13 can form an electric power path so that the electric power output by discharge of the electrical storage equipment 11 may be supplied to the load 14 in the other customer facilities 10.

The load 14 includes at least one device or facility that consumes power in order to operate itself in the customer facility 10.
The purchased power meter Mp measures the amount of purchased commercial power.
The power sale wattmeter Mq compensates for the power consumption of the load 14 in the customer facility 10 out of the power generated by the solar power generation facility 12 (solar power generation), and stores electricity as needed. The facility 11 is charged and the amount of surplus power generated as surplus is measured.

The power management unit 15 has a cooperation function between the controller function of the power storage facility 11 and the external power management system 30 owned by the retailer. The power management unit 15 may have a function of Home Energy Management System (HEMS).
As a communication means between the power storage facility 11 and the power management unit 15, for example, the MAC layer / physical layer is IEEE802.11b / g / n, IEEE802.15.4, etc., and ECHONET Lite is considered as a communication protocol.
Through the communication between the power storage facility 11 and the power management unit 15, data on the emergency power amount and the chargeable amount is transmitted from the power storage facility 11 to the power management unit 15, and the power storage facility 11 is transmitted from the power management unit 15 to the power storage facility 11. A control command to is sent. Examples of the control command include predetermined operation modes of the power storage equipment 11 such as “constant power charging”, “constant power discharging”, “load following discharge”, “standby”, and the like. The stored power storage facility 11 can perform a predetermined operation.
The modem 16 is a transmission / reception unit for performing communication between the power storage facility 11 and the power management system 30 via a public Internet line.

FIG. 2 is a schematic block diagram showing the configuration of the charge management system 1 including the above-described customer facility 10. This billing management system 1 manages a power charge for a consumer having a power storage facility. Further, in this billing management system 1, a contract is made so that the electric utility can use the power stored in the power storage facility from the consumer through the power line in reverse or in a certain time zone.
The customer facility 10 is communicably connected to a contract management system 20 of an electric power company and a contract management system 30 of a power distribution company such as new power via a communication network.
The smart meter M of the customer facility 10 includes a sales power measuring unit 101 that measures the amount of electricity sold from the power storage facility 11 to the electric utility. The sold power measuring unit 101 can also measure the amount of electricity sold from the power storage facility 11 to the power distribution company.
Further, the smart meter M includes a reverse flow power measurement unit 102 that measures the amount of power reversely flowed from the power storage facility 11 to the electric utility system.
The history storage unit 103 measures each of the amount of power sold to the electric power company, the amount of power sold to the power distribution company, and the amount of power measured by the reverse flow power measurement unit 102, measured by the sold power measurement unit 101. The history is stored as history information.
The communication unit 104 uses the first route of the smart meter M to transmit the amount of electricity sold from the power storage facility 11 to the electric utility or the history of reverse power flow to the contract management system 20 of the electric utility.
In addition, the communication unit 104 transmits the amount of electricity sold from the power storage facility 11 to the power distribution company or the history of reverse power flow to the contract management system of the power distribution company using the second route of the smart meter M.
As a timing for transmitting the history from the communication unit 104, the history may be transmitted every time power is sold or reverse power flow is performed, or is transmitted at regular intervals (for example, timing in accordance with the date for calculating the electricity bill). You may make it do.

The contract management system 20 can be configured by a personal computer, a server, a cloud, etc. owned by an electric power company.
The contract management system 20 includes a communication unit 201 and a calculation unit 205. The communication unit 201 communicates with the smart meter M and transmits / receives various data.

The calculation unit 205 calculates the amount of money to be paid from the electric utility to the consumer based on the amount of electricity or the history of reverse power flow. The calculation unit 205 can calculate the usage consideration of the power storage facility from the contract contents, the history of reverse flow, and the unit unit price, and perform rebate. Further, the calculation unit 205 can calculate based on a basic charge associated with the use of the power storage facility 11 and a metered charge proportional to the amount of power that has flowed backward. For example, for the customer to be calculated, the contract type is Plan A, and the total reverse tide power amount for the calculation target for one month (the reverse tide power amount for 1 month is akWh, the reverse tide power for 2 month) When the amount is bkWh,..., The reverse power amount of the month 31 is ckWh, and the total amount of these reverse power amounts is w1, this w1 is the total reverse power amount The total amount of the month is calculated according to the following formula (1).
Total amount = basic charge [yen] + total reverse power consumption [kWh] x power charge unit price [yen / kWh] (1)
Here, the basic charge is a charge (amount) determined in advance between the electric power company and the consumer. This basic fee is, for example, an amount determined for each calculation target period (for example, one month). The reverse power flow amount is, for example, the reverse power amount during the calculation target period (for example, one month). The power rate unit price is a unit price of reverse power that is predetermined between the electric power company and the consumer.

Further, the calculation unit 205 can calculate based on a metered rate proportional to the amount of power that has flowed in reverse.
For example, for the calculation target consumer, the total reverse tide power amount of the calculation target for one month (the reverse tide power amount on January 1 is akWh, the reverse tide power amount on March 2 is bkWh,... ○ If the reverse power on the 31st of month is ckWh, etc., and the total value of these reverse power) is w2, then this w2 is the total reverse power and the total amount for that month is It calculates according to the formula (2).
Total amount = total reverse power consumption [kWh] x unit price of electricity charge [yen / kWh] (2)
Here, the unit price of the power rate is a unit price of the reverse power that is predetermined between the electric power company and the consumer.

Further, the calculation unit 205 can calculate based on a rule that pays a certain amount as the power storage facility 11 is used. For example, a predetermined amount (fixed amount) can be determined in advance as a power storage facility usage fee from an electric power company to a consumer every month.
The calculation unit 205 performs calculation according to at least one of these calculation functions.

  Regarding the usage consideration calculated by the calculation unit 205, an amount corresponding to the usage consideration may be paid from the electric utility to the consumer of the customer facility 10. In addition, when the customer facility 10 calculates the difference between the electricity fee purchased from the electric utility and the usage fee, and the electricity fee is higher than the usage fee, the amount corresponding to the usage fee is calculated from the electricity fee. When the offset electricity rate is paid from the customer of the customer facility 10 to the electric utility, and the electricity fee is lower than the usage fee, the amount obtained by subtracting the electric fee from the usage fee is calculated from the electric utility to the customer facility 10. You can also pay to other customers.

The contract management system 30 can be configured by a personal computer, a server, a cloud, etc. owned by an electric power distribution company.
The contract management system 30 includes a communication unit 301 and a calculation unit 305. The communication unit 301 communicates with the smart meter M and transmits / receives various data.

  The calculation unit 305 calculates the amount of payment for usage consideration from the power distribution company to the consumer based on the amount of electricity or the history of reverse power flow. In addition, the calculation unit 305 can calculate the usage consideration of the power storage facility from the contract contents, the history of reverse tide, and the unit unit price, and perform rebate. Further, the calculation unit 305 can calculate based on a basic charge associated with the use of the power storage facility 11 and a metered charge proportional to the amount of power that has flowed backward. Further, the calculation unit 305 can calculate based on a metered rate proportional to the amount of power that has flowed in the reverse direction. Moreover, the calculation part 305 can be calculated based on the rule which pays a fixed amount with using the electrical storage equipment 11. FIG. The calculation unit 305 performs calculation according to at least one of these calculation functions.

  Of the functions of the calculation unit 205 of the contract management system 20, the calculation unit 305 may apply the calculation method based on the above-described equations (1) and (2). Similarly to the rules applied by the calculation unit 205, the calculation unit 305 calculates a predetermined amount (fixed amount) every month as a storage facility usage fee when calculating based on a rule that pays a fixed amount. It may be determined in advance as paying from the customer to the consumer.

  Regarding the usage consideration calculated by the calculation unit 305, an amount corresponding to the usage consideration may be paid from the power distribution company to the customer of the customer facility 10. In addition, when the customer facility 10 calculates the difference between the electricity fee purchased from the electric utility and the usage fee, and the electricity fee is higher than the usage fee, the amount corresponding to the usage fee is calculated from the electricity fee. When the offset electricity rate is paid from the customer of the customer facility 10 to the electric utility, and the electricity fee is lower than the usage fee, the amount obtained by subtracting the electric fee from the usage fee is calculated from the electric utility to the customer facility 10. You can also pay to other customers.

  The electric power distribution company can supply and sell the electric power sold from the power storage facility 11 of the customer facility 10 to the electric power distribution company or the reversely flowed electric power to other consumers. Thereby, the consumer who has the electrical storage apparatus 11 can utilize the stored electric power effectively, and can enjoy the merit reflected in the electricity bill. In addition, the stored power is utilized by other customers, thereby reducing the peak shift of power and the generation of surplus power without being stored in the power storage facility 11 although it is generated by the solar power generation facility. can do.

  Here, the power distribution company is, for example, a power retailer. A retailer procures electric power from a power generation company (electricity company) and sells it to a plurality of consumers. If the amount of power procured can be reduced, the amount of procurement can be reduced, thereby making it possible to set the electricity bill collected from the consumer at a low cost. As a method for reducing the amount of power procured, for example, there is a technique for reducing inverter loss inside a power storage facility as disclosed in Japanese Patent Application Laid-Open No. 2014-30334, and a local consumer group disclosed in Japanese Patent No. 5576218. Applications such as technology to increase the self-sufficiency rate of electricity by natural energy can be considered. All of these are to control power storage equipment installed in the customer facility from the outside, thereby reducing loss of the power storage equipment and improving the power self-sufficiency rate. Here is the need for retailers to control power storage equipment installed by consumers from the outside in order to reduce the amount of power procured.

In addition to this, it is also possible to use imbalance adjustment by retailers and power generation companies, and use of power storage facilities of customers for the purpose of reducing the burden on the transmission and distribution network by transmission and distribution companies.
Thus, when a retailer etc. controls a storage battery of a consumer for its own purpose, payment of the price to a consumer is desired. Thus, in the present embodiment, in the contract management system 30 of the retailer, the demand for owning the power storage facility 11 based on the amount of power sold to the retailer and the history of reverse power flow. It is possible to calculate the payment amount of the usage consideration for the house and pay the consumer based on the calculation result.

Next, a first modification of the above embodiment will be described. When calculating the reverse power charge, the reverse power charge may be calculated according to a multi-stage charge plan. In this case, the calculation unit 205 or the calculation unit 305 described above sets and calculates a unit price for a charge for the amount of power that has flowed in reverse. For example, the reverse power flow rate is set so that the unit price increases as the reverse power flow increases. Specifically, it is conceivable to set 25 yen / kWh at 0 to 100 kWh as the first stage, 30 yen / kWh at 101 to 200 kWh as the second stage, and 35 yen / kWh at 201 kWh or more as the third stage. Then, the total amount of the reverse power charge during the calculation target period (for example, one month) is calculated based on the following equation (3).
Total amount = (first-stage reverse power flow amount × first-stage reverse power flow unit price [yen / kWh] + second-stage reverse power flow amount × second-stage reverse power flow unit amount [yen / kWh] + third-stage reverse power flow amount × Third-stage reverse power flow unit [yen / kWh]) (3)
Here, the total reverse tide power amount for one month to be calculated (the reverse tide electric energy amount on March 1 is akWh, the reverse tide electric energy amount on March 2 is bkWh,... When the tidal power amount is ckWh or the like and the total value of these reverse tidal power amounts is 150 kWh, it can be calculated as follows based on the equation (3).
Total amount = 100 (kWh) × 25 [yen / kWh] +50 (kWh) × 30 [yen / kWh] +0 (kWh) × 35 [yen / kWh]) = 2500 (yen) +1500 (yen) +0 (yen) = 4000 (yen)

  By setting the multi-stage charge in this way, the benefit to the customer increases as the reverse flow occurs, so the electric power company or power distribution company can encourage the reverse flow to the customer.

Next, a second modification of the above embodiment will be described. In the above-described embodiment and the first modified example, the case where the charge is calculated based on the electric energy (wh) has been described, but in this modified example, the case where the charge is calculated based on the electric power (W) will be described. . In this modification, for example, there are the following charge calculation methods (a) to (d).
(A) At the time of customer equipment registration, the basic charge is proportional to the output. That is, the basic fee is set according to the output size. For example, 1,000 yen for less than 1 kW, 1,500 yen for less than 1 kW to less than 2 kW, 2,000 yen for less than 2 kW to less than 3 kW, and 2,500 yen for more than 3 kW To do. Then, when 2 kW is set as the scale of the power storage equipment and power generation equipment used by the consumer, the amount paid to the consumer from the electric power company or power distribution company is calculated as 2,000 yen. .
(B) The charge is determined according to the maximum value of the measured reverse power flow in the month to be calculated. For example, 1,000 yen for less than 1 kW, 1,500 yen for less than 1 kW to less than 2 kW, 2,000 yen for less than 2 kW to less than 3 kW, and 2,500 yen for more than 3 kW To do. If the maximum value of the reverse power flow in which the consumer has performed reverse power flow is 2.5 kW in the calculation target period (for example, one month), the electric power company or power distribution company is provided to the consumer. The amount to be paid from is calculated as 2,000 yen.
(C) A multi-stage charge is set for the maximum output of electric power at regular intervals. For example, 5 yen for less than 1 kW, 15 yen for less than 1 kW to less than 2 kW, 50 yen for less than 2 kW to less than 3 kW, and 100 yen for more than 3 kW. And it calculates according to the measured value of the reverse flow electric power for every fixed time (every 1 hour). For example, when the reverse power from 8 o'clock to 9 o'clock is 1.5 kW, the reverse power from 9 o'clock to 10 o'clock is 2.5 kW, and the reverse power from 10 o'clock to 11 o'clock is 0.8 kW, 15 Calculated as Yen +50 Yen +5 Yen. In such a calculation, a charge for every fixed time (every hour) is calculated in a calculation period (for example, one month), and a reverse charge is calculated by calculating the sum.
(D) A multi-stage charge is set for the minimum output of power every fixed time. For example, 5 yen for less than 1 kW, 15 yen for less than 1 kW to less than 2 kW, 50 yen for less than 2 kW to less than 3 kW, and 100 yen for more than 3 kW. And it calculates according to the measured value of the reverse flow electric power for every fixed time (every 1 hour). For example, when the reverse power from 8 o'clock to 9 o'clock is 1.5 kW, the reverse power from 9 o'clock to 10 o'clock is 2.5 kW, and the reverse power from 10 o'clock to 11 o'clock is 0.8 kW, 15 Calculated as Yen +50 Yen +5 Yen. In such a calculation, a charge for every fixed time (every hour) is calculated in a calculation period (for example, one month), and a reverse charge is calculated by calculating the sum.

In addition, a program for realizing the functions of the charge management systems 1 and 20a is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed for charging. May be. Here, the “computer system” includes an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes modifications and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Billing management system, 10 ... Customer facility, 11 ... Power storage equipment, 12 ... Solar power generation equipment, 1
DESCRIPTION OF SYMBOLS 3 ... Distribution board, 14 ... Load, 15 ... Power management part, 16 ... Modem, 20, 30 ... Contract management system, 201, 301 ... Communication part, 205, 305 ... Calculation part

Claims (9)

A billing management system for managing power charges for consumers equipped with power storage facilities,
It is possible for the electric power company to use the power stored in the power storage facility from the customer through the power line, using the reverse tide,
A measuring unit that measures the amount of electricity reversely flowed from the power storage facility by the electric utility, and a measuring unit that measures the amount of electricity used by the consumer from the electric company through the power line,
A transmission unit for transmitting data on the amount of electricity sold to the electric power company to a contract management system of the electric power company;
A charging management system comprising: a receiving unit that receives the data; and a calculating unit that calculates an amount of payment for usage charges from an electric power company to a consumer based on a history of an amount of electricity or a reverse flow. A billing management system for managing power charges for consumers equipped with power storage facilities,
It is possible for the electric power company to use the power stored in the power storage facility from the customer through the power line, using the reverse tide,
A measuring unit for measuring the amount of electricity flowing backward from the power storage facility;
A transmission unit for transmitting the amount of electricity sold from the power storage facility to the power distribution company to the contract management system of the power distribution company using the second route of the measurement unit, and a history of reverse power flow;
A charging management system, comprising: a receiving unit that receives the data; and a calculation unit that calculates an amount of payment for usage charges from a power distribution company to a consumer based on the history of the amount of electricity or reverse flow. The calculation unit includes:
The billing management system according to claim 1 or 2, wherein a usage fee for the power storage facility is calculated from contract contents, a history of reverse power flow, and a unit unit price, and a rebate is performed. The calculation unit includes:
The charge management system according to claim 1 or 2, wherein the charge management system is calculated based on a basic charge associated with the use of the power storage facility and a pay-as-you-go charge that is proportional to the amount of electric power flowing backward. The calculation unit includes:
4. The charge management system according to claim 3, wherein the charge management system calculates the charge based on a metered charge proportional to the amount of electric power flowing backward. The calculation unit includes:
The billing management system according to claim 3, wherein the billing management system calculates a rule based on a rule of paying a certain amount as the power storage facility is used. The calculation unit includes:
Based on the unit price corresponding to the stage of the amount of power that flows backward, and the unit price that increases as the amount of power increases, the charge for each stage of the amount of power that has undergone the reverse power flow is based on the unit price corresponding to the stage. The charge management system according to claim 3, wherein the usage consideration is calculated by calculating and calculating the sum. The calculation unit includes:
The charge management system according to claim 3, wherein usage consideration is calculated based on power based on an amount of power represented by the received data or power determined according to equipment used by the customer. A billing management system for managing power charges for consumers equipped with power storage facilities,
In a certain or all time period, the electric power company has signed a contract that allows the electric utility to use the power from the customer through the power line in reverse power,
The smart meter measures the amount of electricity sold from the electricity storage facility to the electric utility,
The transmission unit transmits the amount of electricity sold from the power storage facility to the electric power company to the contract management system of the electric power company or power distribution company using the communication route of the smart meter, and the history of reverse power flow,
A billing management method in which a calculation unit calculates an amount of payment to be paid to a consumer from an electric power company or a power distribution company based on the amount of electricity or a history of reverse flow.

Images