JP2003187322A - Flat rate power supply method and flat rate power supply service system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat rate power supply method and a flat rate power supply service system corresponding to power consumers. <P>SOLUTION: The power consumer 100 is provided with a watt-hour meter 120 having a transmission/reception part 121 and a consumer information terminal 130 which is terminal equipment having a transmission/reception part 131, an input part 132 and an output part 133. A power supplier 200 is provided with a supplier service server 220 as a management device having a transmission/reception part 221. The supplier service server 220 refers to consumer attribute data such as past power using amount data in response to a request from the consumer information terminal 130, decides an allowable power amount and a flat rate power charge, prepares a corresponding flat rate system supply contract estimate, transmits it to the consumer information terminal 130 and makes a contract. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat-rate power supply method and a flat-rate power supply service system in which a power supplier supplies power to consumers by a flat-rate system.

[0002]

2. Description of the Related Art The most common power supply contract is a supply-based supply contract in which power consumers receive power from a power supplier. Usually, the charge that occupies the largest proportion of the charges constituting the usage charge of the meter-rate supply contract is the electricity charge. The electricity amount charge is a pay-per-use charge calculated from the amount of electricity used in January and the unit price of the electricity amount.

The supply contract has a fixed rate system. This is the demand for the use of electric lights or small appliances and their total capacity.
Applies to those whose (input) is less than or equal to the specified volt amperage, presets the contract load equipment, and sets the capacity of each contract load equipment.
The charge is determined based on (input) and the unit price of the device. In this flat-rate power supply method, power is supplied to consumers at a flat rate regardless of the amount of power used.

[0004]

[Problems to be Solved by the Invention] In the supply contract for fixed-rate power supply, the unit price of equipment is determined from the capacity (input) of each contract load facility, regardless of the power consumption, and the total capacity within the applicable range. Is an effective method for very small application range. However, it is difficult to apply it as a method of supplying power to ordinary power consumers. This is because it is difficult to determine the unit price of equipment from the capacity (input) of each load facility because the monthly power consumption of each load facility that a normal power consumer has is not constant.

In addition, general households, shops, buildings, factories,
When a normal power consumer such as a local government receives power from a power supplier, it is difficult to select the flat-rate contract because the power consumption is limited in the flat-rate contract.

[0006] Therefore, since a general electric power consumer receives electric power supply based on a metered-rate supply contract, the monthly electric power consumption is not constant throughout the year, and as a result, the monthly electric power charge is constant throughout the year. There is a problem that it is difficult to make effective use of funds because it is difficult to make a budget for the year.

Further, there is a problem that it is difficult for the electric power supplier to obtain a stable income from each electric power consumer and to estimate the electric power to be prepared.

An object of the present invention is to provide a flat-rate power supply method and a flat-rate power supply service system capable of widely performing flat-rate power supply.

Another object of the present invention is to provide a flat-rate power supply method and a flat-rate power supply service system capable of performing flat-rate power supply according to each power consumer.

[0010]

A flat-rate power supply service system of the present invention comprises a power supply unit arranged for a power supplier, a power consumption unit arranged for a power consumer, and a watt hour meter. In the flat-rate power supply service system,
Information provided by a management device arranged for a power supplier and a terminal device arranged for a power consumer connected via communication means, wherein the management device obtains information from the terminal device and the electricity meter It is characterized in that the allowable power amount and the flat-rate power charge are determined by referring to the attributes of the power consumer based on the above.

Further, the flat-rate power supply method of the present invention is a flat-rate power supply method in which power is supplied from a power supplier to a power consumer at a flat power rate, and a new allowable power amount is calculated by referring to the actual value of the previous year. It is characterized by deciding the flat-rate electricity charge.

[0012]

FIG. 1 is a functional block diagram of a flat-rate power supply service system showing an embodiment of the present invention.

Reference numeral 100 denotes a plurality of power consumers (customers) who are supplied with power. 200 is an electric power supplier that supplies electric power. Power consumer 100 and power supplier 20
Regarding the power supply system among the communication with 0, it is realized by using a configuration in which the power consumption unit 110 and the power supply unit 210, which are already known power supply mechanisms, are connected by the power supply line 310.

The power consumer 100 further includes a transceiver 12
1 and a consumer information terminal 130, which is a terminal device having a transmission / reception unit 131, an input unit 132, and an output unit 133, and the power supplier 200 is a management device further having a transmission / reception unit 221. The supplier service server unit 220 is provided. The consumer information terminal 130 and the supplier service server unit 220 are configured using a computer or the like, and function to support conclusion and management of a power supply contract. As the consumer information terminal 130, a computer, a mobile terminal, a mobile phone, or the like that can execute electronic mail software or a web browser can be used.

The transmission / reception unit 121 of the power meter 120 of the power consumer 100 and the transmission / reception unit 13 of the consumer information terminal 130.
1 and the supplier service server unit 2 of the power supplier 200
The transmitting / receiving unit 221 of 20 is connected via the communication line 320 using the Internet line. Communication line 320
May be a private line or public line.

The watt-hour meter 120 is a watt-hour meter having a known communication function, and measures the amount of power used,
The measured power consumption data is transmitted to the supplier service server unit 220 via the communication line 320. The supplier service server unit 220 uses a preset fixed period,
For example, the measurement value data is collected from the watt hour meter 120 every 30 minutes.

As will be described in detail later, the power consumer 100
A request is sent to the supplier service server unit 220 by an input from the input unit 132 of the consumer information terminal 130. The supplier service server unit 220 receives the request, creates an answer according to the request, and returns it. Consumer 100
The answer is received by displaying on the output unit 133 of the consumer information terminal 130.

FIG. 2 shows the supplier service server unit 220.
3 is a functional block diagram showing the internal configuration of FIG. Each functional unit of the supplier service server unit 220 is actually realized by a computer system (hardware) and its program (software).

The supplier service server unit 220 is
In addition to the transmitting / receiving unit 221, the input unit 222, the output unit 223, the customer management unit 224, and the power consumption management unit 22.
5, charge management unit 226, power consumption prediction management unit 227,
The contract management unit 228 and the database management unit 229 are provided.

The database management unit 229 has a customer database 2291 and a power consumption (measurement value) database 2
292, a charging (price list) database 2293 and a power consumption forecasting database 2294 are provided.

FIG. 3 shows the customer database 2291.
The power consumption database 2292 and the power consumption prediction database 2294 exemplify the customer data, measured value data, and power consumption prediction data of power consuming customers.

The customer table stored in the customer database 2291 is managed by the customer management unit 224. For example, the business type of each customer, the maximum annual power consumption, the contract number,
Others. In the drawings, character strings and numerical values are used to show the concept, but the actual data is a code meaning each of them, and a code conversion table may exist in another table. The same applies hereinafter.

The measured value table stored in the power consumption database 2292 is managed by the power consumption management unit 225, and stores, for example, the power consumption in units of one hour for each customer contract.

The power forecast table stored in the power forecast database 2294 is the power forecast manager 22.
7 stores the data for predicting the amount of power consumption, and stores, for example, temperature history data of each place.

FIG. 4 exemplifies the charge table data stored in the charge database 2293. The charge table data is data registered in advance for reference in various charge (billing) calculations. This is data registered in advance in the charging database 2293 of FIG. Seasonal tariff, time tariff, pay-per-use tariff,
It stores the price list based on a flat rate system.

In the pay-per-use tariff, the unit price may actually vary depending on the conditions. Conditions such as the amount of usage. Here, the unit price F is expressed as a set concept including those conditions.

[0027] The contract management unit 228 is a flat rate charge table.
Is the price list used when calculating the electricity price. Each tariff according to the conditions is used in the process described later. Here, the data of the tariff table of the contract in which there is a margin of deviation and the unit price is high is shown.

FIG. 5 shows that the power consumer has a consumer information terminal 13
The transition state of the display screen output to the output unit 133 of the consumer information terminal 130 when the user operates 0 to make a flat-rate power supply contract is shown. This display screen is displayed on the consumer information terminal 1 in the communication using the Internet line, for example.
30 is configured to communicate with and obtain the supplier service server unit 220 by electronic mail software or a Web browser. The information on these display screens is created and provided by the contract management unit 228 in the supplier service server unit 220.

The consumer information terminal 130 communicates with the supplier service server unit 220 based on the input from the input unit 132 when making a contract for the flat-rate power supply contract so that the supplier service server unit 220 can use the fixed amount system. The supply contract main screen 401 is acquired and displayed on the output unit 133. By selecting "new application" on the flat-rate supply contract main screen 401 and transmitting it to the supplier service server unit 220, the flat-rate supply contract-new application screen 402 is acquired and output from the supplier service server unit 220. This is displayed on the section 133.

[Usage status inquiry] is selected on the flat-rate supply contract main screen 401 and the supplier service server unit 22 is selected.
By sending to 0, the supplier service server unit 2
The flat-rate supply contract-usage status inquiry screen 403 is acquired from 20 and displayed on the output unit 133.

By selecting "Update" on the flat-rate supply contract main screen 401 and transmitting it to the supplier service server unit 220, the flat-rate supply contract-update screen 404 is acquired from the supplier service server unit 220 and output. Part 13
Display in 3.

FIG. 6 shows a contract for a flat-rate power supply contract.
The contract management unit 228 in the supplier service server unit 220 in response to a fixed-price supply contract request from the power consumer side transmitted from the consumer information terminal 130 to the supplier service server unit 220 via the Internet line or the like.
It is a flowchart of the process which is performed. This process
It starts when "new application" is selected on the flat-rate supply contract main screen 401 in FIG.

Step S10 A request for a flat-rate supply contract from the consumer information terminal 130 is accepted.

Step S11 The process is branched after confirming whether the customer has already contracted a supply-based supply contract. This confirmation is performed by collating the contract number and personal identification number.

Step S12 In the case of a customer who has already a supply contract of the metered rate system, it is further confirmed whether the customer has renewed the supply contract of the metered rate system, and the process is branched. This confirmation is made based on the contract start date, contract end date, and the like.

Step S13 In the case of a customer who has renewed the supply contract of the pay-as-you-go system (contract change for one year or more after the start of the first contract), a flat-rate supply contract estimate is prepared based on the accumulated data and responds. This flat-rate supply contract estimation process will be described later in detail, but is performed as an individual process in the flat-rate supply contract estimation process shown in FIG. The consumer information terminal 13 for the created flat-rate supply contract estimate
After transmitting to 0, it waits for a response from the consumer information terminal 130.

Step S14: If the customer has not yet renewed the pay-as-you-go supply contract (contract change within one year from the start of the first contract), create a fixed-price supply contract estimate by individual approximation processing in the fixed-price supply contract estimation process. And respond. Even if it is a pay-as-you-go contractor, if the contract is in the process of being contracted, the necessary and sufficient data has not been obtained, so the conditions will be a little similar to the customer without a contract. The process with and without data is a process that uses both individual processing and approximate processing.
After sending the created flat-rate supply contract quotation to the consumer information terminal 130, it waits for a response.

Step S15 In the case of a customer who does not have a pay-as-you-go supply contract, since there is little data for creating the fixed-rate supply contract estimate, the fixed-rate supply contract estimate is calculated by the rough calculation process in the fixed-rate supply contract estimate process. Make an estimate and respond. The creation of the flat-rate supply contract estimate by this approximation is performed by the approximate process in the flat-rate supply contract estimate process shown in FIG. 8, which will be specifically described later. The consumer information terminal 13 for the created flat-rate supply contract estimate
After transmitting to 0, it waits for a response from the consumer information terminal 130.

Step S16 The contract execution request or the contract cancellation request from the power consumption information terminal 130 is accepted, and the process is branched according to the request.

Step S17 In the case of the execution request, processing such as changing the corresponding data in the customer database is performed and the processing is ended.

Step S18 In the case of a cancellation request, cancel processing is performed and the processing ends.

FIG. 7 is a process for creating a fixed-price supply contract estimate based on the data for one year collected in the power supply based on the supply contract of the metered-rate supply contract in the individual process in the fixed-price supply contract estimation process (step S13). It is a flowchart of.

Step S131 Customer database 229 of database management unit 229
1. The data of the corresponding customer is taken out from the power consumption database 2292 to obtain the consumption for one year. Next, using the data of the charging database 2293, the total of the power usage charges for one year is calculated.

Step S132 The power consumption is estimated by using the data in the power consumption forecasting database 2294, the temperature of last year is compared with the temperature of this year, and the power consumption is estimated by the future climate change. Correct the value and calculate the amount of electricity used by the flat rate system with a margin that is highly likely to achieve the target for this customer. Note that if there is more data than for one year, the power consumption can be calculated with higher accuracy by using these, so the calculation is not necessarily limited to the data for exactly one year.

Step S133: Calculate the permissible power amount and the flat-rate power charge under the flat-rate system based on the calculated power usage amount, create the flat-rate supply contract estimate, and the consumer information as the flat-rate supply contract-new application screen 402. It is transmitted to the terminal 130. In the calculation of the flat-rate electricity charge,
Refer to the price list (1).

FIG. 8 shows a flat-rate supply contract for a customer (power consumer) who does not have any data indicating power supply based on a metered supply contract in the rough calculation process (step S15) in the flat-rate supply contract estimation process. It is a flow chart of processing which creates an estimate.

Step S151 Referring to the data of the customer group having similar attributes such as the number of outlets and the floor area from the data of the customer attribute and indoor wiring diagram, the power consumption of the customer group closest to the target new customer is used. Estimate data for new customers using quantity and fees. Here, the attribute includes, for example, a basic attribute and a predictive attribute. The basic attribute is, for example, a fixed attribute for a customer, and is, for example, the type of business or location obtained from the customer table shown in FIG. The predictive attribute is an attribute that is likely to be changed, and is, for example, a temperature predicted value obtained from the temperature history and forecast of each place.

Step S152 Based on the data of the factors that have affected the power consumption in the past, the power consumption in the case of the flat rate system is corrected.

In step S153, the allowable power amount and the flat rate of the flat-rate supply contract are calculated to create a flat-rate supply contract estimate, which is output as a new application screen similar to the flat-rate supply contract-new application screen 402.

FIG. 9 shows the power consumption transmitted from the consumer information terminal 130 to the supplier service server section 220 via the Internet line or the like in order to confirm the usage status by the power consumption customer who has contracted for the flat-rate system. 9 is a flowchart of a process executed by a contract management unit 228 in the supplier service server unit 220 in response to a usage status inquiry request of a flat-rate supply contract from the supplier side. This process is started when "inquiry of use status" is selected on the flat-rate supply contract main screen 401 in FIG.

In step S20, the usage status inquiry request of the flat-rate supply contract is received from the consumer information terminal 130.

Step S21 The process is branched after confirming whether the customer has already contracted for a flat-rate supply contract. This confirmation is performed by collating the contract number and personal identification number.

Step S22 If the customer has not contracted, a process for urging a new application for a flat-rate supply contract is executed. In this process, although illustration is omitted, a message prompting a new application for a flat-rate supply contract is created and transmitted to the consumer information terminal 130.

Step S23 For the customers who have contracted, the usage status such as the usage amount, the remaining amount, and the expected future usage of the electric power is created and the flat rate supply contract-usage status inquiry screen 403 is used as the consumer. The information is transmitted to the information terminal 130. The customer's flat rate and the amount of power used last year may be displayed together. Furthermore,
For a power consumer who wants to know in detail, the power usage amount of 30 minutes, the trend of the power usage amount in January, and the like may be displayed.

Step S24 The process is branched after confirming the inquiry end request from the consumer information terminal 130.

Step S25 Terminate the usage status inquiry processing of the flat-rate supply contract.

FIG. 10 shows a contract in the supplier service server unit 220 in response to an update (continuation) or cancellation request of a flat-rate supply contract transmitted from the consumer information terminal 130 of a consumer who has already contracted for the flat-rate system. 9 is a flowchart of processing executed by the management unit 228. This process is activated when "update" or "cancellation" is selected on the flat-rate supply contract main screen 401 in FIG.

Step S30: The request for renewal or cancellation of the flat-rate supply contract is accepted from the consumer information terminal 130.

Step S31 It is confirmed whether or not the customer has already contracted for a flat-rate supply contract, and the process is branched. This confirmation is performed by collating the contract number and personal identification number.

Step S32 In the case of a customer who has not contracted yet, a message indicating that fact is transmitted, and further, a process of transmitting a message prompting a new application for a flat-rate supply contract is executed. To end the response.

Step S33 In the case of a contracted customer, the update and cancellation are confirmed and the processing is branched.

Step S34: Cancellation processing in the flat-rate supply contract quotation processing is executed, and the estimation processing of the settlement of the electric power usage rate and the settlement of the penalties etc. is executed, and the cancellation quotation is prepared and consumed. The information is transmitted to the personal information terminal 130.

In step S35, the update process in the flat-rate supply contract estimate process is executed, and 1
Create a report on annual usage results, etc.
The update screen 404 is transmitted to the consumer information terminal 130. Here, the target achievement information of the permissible power amount in this contract is additionally referred to to determine the next permissible power amount and the flat-rate power charge. When the target is achieved, a message to that effect is displayed, and when the target is not achieved, the settlement charge is displayed as temporary power. A penalty fee is used for this settlement fee.

Step S36: A request for execution of updating or cancellation is received from the power consumption information terminal 130, and the process branches according to the request.

Step S37 In the case of the execution request, the contract renewal (continuation) or the contract cancellation process is executed, the process of changing the corresponding data in the customer database is executed, and the process ends.

Step S38 In the case of a cancellation request, update or cancellation cancellation processing is performed and the processing is terminated.

FIG. 11 shows another embodiment of the present invention, which is a modification of the individual processing in the flat-rate supply contract estimation processing of the above-described embodiment. This modification is characterized in that a flat-rate charge is calculated at a bargain price in the individual process S19 to create a flat-rate supply contract estimate. Here, a modification of the individual processing S13 will be described, but the individual processing S13 may be installed in parallel and selectively operated.

FIG. 12 is a flowchart of the individual processing S19 for creating a flat-rate supply contract estimate, and FIG. 13 is a flat-rate charge table (No. 2) referred to in this individual processing S19, FIG.
Reference numeral 4 is a flat-rate supply contract-new application screen created by estimating with the bargain price system.

Step S191 Customer database 229 of database management unit 229
1. The data of the corresponding customer is taken out from the power consumption database 2292 to obtain the consumption for one year. Next, using the data of the charging database 2293, the total of the power usage charges for one year is calculated.

Step S192 The power consumption is predicted using the data in the power consumption prediction database 2294. For example, by comparing last year's temperature with this year's temperature, you can predict the amount of electricity used due to future weather fluctuations, and calculate the amount of electricity used with a margin that is likely to achieve the target for this customer. . Note that if there is more data than for one year, the power consumption can be calculated with higher accuracy by using these, so the calculation is not necessarily limited to the data for exactly one year.

Step S193: The allowable power amount and the flat rate are calculated based on the calculated power consumption, a flat-rate supply contract estimate is prepared and transmitted to the consumer information terminal 130 as the flat-rate supply contract-new application screen 405. . In the calculation of the fixed charge, the charge list (No. 2) is referred to. Compared to the price list (No. 1) shown in FIG. 4, the price list referred to here (No. 2) is a bargain price system in which there is less margin in deviation and the unit price is cheaper if the power consumption is lower. .

If such a low-price flat-rate system is applied to households and shops where the amount of use is small but the number is large, it is advantageous for electric power suppliers. Many consumers who use a small amount of money want a cheaper system than a high-priced system, even if they conclude a flat-rate supply contract. This low-priced flat-rate system has the advantage that the electricity supplier can collect the electricity usage fee under a flat-rate contract, and the consumer is cheaper than the electricity usage fee under the metered-rate contract. There are certain advantages.

FIG. 15 is a functional block diagram of still another embodiment of the present invention, which is a preferred embodiment for implementation in an environment in which a plurality of suppliers supply power in parallel. FIG. 16 is a flowchart of transfer processing in the flat-rate supply contract estimation processing in this embodiment, and FIG.
Is the charge table (part 3) referenced in this transfer process, FIG.
Is a flat-rate supply contract for transfer-new application screen.

This embodiment has a feature that allows a consumer to switch from one of a plurality of suppliers to another.

In this embodiment, the power consumption units (not shown) of the plurality of power consumers 100 are connected to the power supply line 310.
Connected to each power supply unit (not shown) of the plurality of power suppliers 200, and each watt hour meter (not shown) and each consumer information terminal 130 are connected to each supplier service server unit via the communication line 320. 220, 230.

The consumer information terminal 130 acquires, for example, the usage history data up to the present from the currently contracted supplier service server section 220, and uses this usage history data for the transfer destination supplier service server section 230. Configure these so that they can be provided to.

Each supplier service server section 220, 230
Are basically the same as those in the above-described embodiment (see FIG. 4).
(See FIG. 6), and the contract management unit 228 executes quotation and contract processing (see FIG. 6) of the flat-rate supply contract.

Step S40 In the transfer contract, the supplier service server section 230
Does not store the history data of the power consumption of the consumer 100, so the consumer information terminal 130 has a format for obtaining the history data of the power consumption of the year that has been contracted with another supplier. Send and wait for input.

Step S41 If the power consumption history data can be obtained, the history data is obtained from the consumer information terminal 130 in the transfer process of the flat-rate supply contract estimate, and the obtained history data is used. A flat-rate supply contract quotation is created and transmitted to the consumer information terminal 130.

Step S15 If the power usage history data cannot be obtained, the flat-rate supply contract estimate is prepared by the above-described estimation and transmitted to the consumer information terminal 130. The transfer process (step S41) is executed as shown in FIG.

Step S411 Based on the attribute of the consumer and the acquired power consumption history data, the past annual consumption and the charge when the customer is assumed to be his company are estimated.

Step S412 Based on the data of the elements that have influenced the past usage,
The estimated value of the electric power consumption when the flat rate system is adopted is corrected.

Step S 413 Based on the corrected estimated value, the permissible power amount and the flat rate of the flat-rate supply contract are calculated to create a flat-rate supply contract estimate for transfer, which is sent to the consumer information terminal 130.

In the calculation of the fixed charge, the charge table (part 3) as shown in FIG. 17 is referred to. This price list (Part 3)
Since the customer's input data is unsupported and the input may be incorrect value regardless of good intention or bad intention, in order to prevent loss due to this error, the penalty fee in case of protruding is The rate is higher than the rate calculated from the actual data of other contracted customers of the supplier itself.

The consumer information terminal 130 displays the fixed amount supply contract estimate as the fixed amount supply contract-new application screen 406.

The flat-rate power supply method and the flat-rate power supply service system described above can easily realize the flat-rate power supply corresponding to the actual condition of the power consumer in response to the request from the power consumer. You can

Moreover, although the electric power consumer may be expensive, since the charge is a fixed amount, the annual electric power charge can be accurately grasped in advance, so that the budget can be fixed and the expenditure is stable. To do. In addition, the power supplier can stabilize the sales and easily plan the power supply amount.

[0088]

According to the present invention, it is possible to realize a flat-rate power supply corresponding to the actual condition of a power consumer in response to a request from the power consumer.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a flat-rate power supply service system showing an embodiment of the present invention.

FIG. 2 is a functional block diagram showing an internal configuration of a supplier service server unit in the flat-rate power supply service system shown in FIG.

FIG. 3 is customer data, power consumption data, and power consumption prediction data held by a database management unit in the supplier service server unit shown in FIG.

FIG. 4 is charge table data held by a database management unit in the supplier service server unit shown in FIG.

5 shows a transition state of a display screen output to a consumer information terminal when a flat-rate power supply contract is made in the flat-rate power supply service system shown in FIG.

FIG. 6 is a flowchart of processing executed by a contract management unit in the supplier service server unit shown in FIG. 2 for a flat-rate power supply contract.

FIG. 7 is a flowchart of individual processing in the flat-rate supply contract estimation processing in the processing shown in FIG.

8 is a flowchart of an approximate process in a flat-rate supply contract estimation process in the process shown in FIG.

9 is a flowchart of a process executed by a contract management unit in the supplier service server unit shown in FIG. 2 for use status inquiry.

10 is a flowchart of a process executed by the contract management unit in the supplier service server unit shown in FIG. 2 for contract renewal (continuation) or cancellation.

FIG. 11 is a flowchart showing a modified example of the individual process of the flat-rate supply contract estimation process according to another embodiment of the present invention.

FIG. 12 is a flowchart of individual processing for creating a flat-rate supply contract estimate in the modified example shown in FIG.

FIG. 13 is a price list referred to in the individual processing shown in FIG.

FIG. 14 is a flat-rate supply contract-new application screen created by the individual processing shown in FIG.

FIG. 15 is a functional block diagram of a flat-rate power supply service system showing another embodiment of the present invention.

16 is a flowchart of transfer processing in the flat-rate supply contract estimation processing in the embodiment shown in FIG.

FIG. 17 is a charge table referred to in the transfer process shown in FIG.

18 is a flat-rate supply contract for transfer-new application screen created by the transfer process shown in FIG.

[Explanation of symbols]

100 ... Electric power consumer, 110 ... Electric power consumption unit, 120 ... Electric energy meter, 130 ... Consumer information terminal, 200 ... Electric power supplier, 210 ... Electric power supply unit, 220 ... Supplier service server unit, 310 ... Power supply line, 320 ... communication line.

Continued front page    (72) Inventor Yasushi Tomita             7-1-1, Omika-cho, Hitachi-shi, Ibaraki Prefecture             Inside the Hitachi Research Laboratory, Hitachi Ltd. (72) Inventor Chihiro Fukui             7-1-1, Omika-cho, Hitachi-shi, Ibaraki Prefecture             Inside the Hitachi Research Laboratory, Hitachi Ltd. F-term (reference) 3E044 AA20 CC10 DA10 DE01                 3E047 JA04 KA09 LA02                 5G066 AA02 AA20 AE03 AE09

Claims (11)

[Claims] 1. A flat-rate power supply service system including a power supply unit arranged for an electric power supplier, a power consumption unit arranged for an electric power consumer, and a watt-hour meter, which are connected via communication means. A management device arranged for the power supplier and a terminal device arranged for the power consumer, wherein the management device is a power consumer based on the information acquired from the terminal device and the watt hour meter. A fixed-rate power supply service system characterized by determining an allowable amount of power and a fixed-rate power charge by referring to the attributes of. 2. The allowable power amount according to claim 1, wherein the management device refers to the basic attribute of the power consumer, the actual value of the previous year, and the prediction attribute information on the management device that affects the power consumption amount. A fixed-rate power supply service system characterized by determining a fixed-rate power charge. 3. The management device according to claim 2, wherein the allowable power amount is determined with a margin of deviation from the actual value of the power consumer in the previous year, and the price system higher than the charge price system in the previous year is used. A fixed-rate power supply service system, characterized in that the fixed-rate power charge is determined. 4. The management device according to claim 2, wherein the management device has a similar attribute based on the basic attribute of the new power consumer when the power consumer is new and has no actual value for the previous year. Calculate an estimate of the previous year's actual value for the new electricity consumer by referring to the previous year's actual value for the existing electricity consumer group, and use this estimated value as the previous year's actual value for the new electricity consumer. A flat-rate power supply service system characterized by: 5. The management device according to claim 2, wherein when there is no part of the actual value of the power consumer for the previous year, the management device has an existing power consumption with a similar attribute based on the basic attribute of the power consumer. A part of the previous year's actual value of the power consumption group and calculate an estimated value of this electric power consumer's previous year's actual value, and use it as the previous year's actual value together with the existing actual value. A flat-rate power supply service system characterized by: 6. The management device according to claim 2, wherein the management device determines the allowable power amount without allowing a deviation from an actual value of a power consumer in the previous year, and sets a price system lower than a charge price system in the previous year. A fixed-rate power supply service system, characterized in that the fixed-rate power charge is determined by using the fixed amount. 7. The flat-rate power supply service system according to claim 4 or 5, wherein the management device uses the previous year's actual value of the amount of power consumption that the power consumer has received from another power supplier. . 8. The management device according to claim 2, wherein the management device has a basic attribute of the power consumer, a previous year's actual value, and a power consumption amount when a usage status inquiry request is made by the power consumer. The flat-rate power supply service system, which predicts future usage prospects by referring to the prediction attributes of and outputs them together with information such as the usage amount and the remaining amount. 9. The management device according to claim 2, wherein the management device, when an update request is made by a power consumer, sets the allowable power amount in this contract as a prediction attribute on the management device that affects the power usage amount. A flat-rate power supply service system characterized by determining and presenting the next allowable power amount and a flat-rate power charge by additionally referring to the target achievement information. 10. A flat-rate power supply service system comprising a power supply unit arranged for an electric power supplier and a power consumption unit arranged for an electric power consumer, and a power supply connected through a communication means. It comprises a management device arranged for a trader and a terminal device arranged for a power consumer, and the management device determines an allowable power amount and a flat-rate power charge by referring to attributes of the power consumer from the terminal device. A flat-rate power supply service system characterized by: 11. A flat-rate power supply method for supplying power from a power supplier to a power consumer at a flat-rate power charge, wherein a new allowable power amount and a flat-rate power charge are determined with reference to the previous year's actual value. And flat-rate power supply method.