JP2003032887A - Wide-area power supply transaction method and wide- area power supply and transaction system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wide-area power supply and transaction method which can reduce the electric rate and balance the quantity of power generation by power undertakers and the quantity of consumption by obviating the necessity of power undertakers having excessive generation facilities. SOLUTION: This system is equipped with a power demand monitor center which always monitors the supply power supplied from each power undertaker stated above and the power consumption in each power receiving facility, between a plurality of power undertakers and the plural power receiving facilities of a plurality of customers which are supplied with power from each power undertaker stated above, and each power undertaker stated above classifies each power receiving facility of each customer started above into a plurality of groups under a certain condition. The above power demand monitor center supplies and transacts surplus power to the upper limit value of each from other customer within a group in question, or the customer in other group in case that there is a fear of the power consumption of the power receiving facility of some customer within some group getting over a preset upper limit value, thus it balances the supply and demand as a whole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wide area power interchange transaction method and a wide area electricity interchange transaction system using a communication network, and more particularly to a stable and inexpensive power supply while maintaining an efficient power supply and demand state. This is related to the technology that is effective when planning.

[0002]

[Prior art] The current idea of power supply is focused on stable supply even at the maximum demand. Therefore, existing electric power companies receive high voltage of 6000V or more or extra high voltage of 20,000V or more. For large electric consumers (large customers) such as large-scale office buildings, department stores, hospitals, etc., when renewing the electric power supply contract every year, consider the past electric power consumption results and the load equipment status of the consumers. hand,
After discussing the maximum power consumption (contracted power) for the next year, the electric power company accumulates the value and makes a supply plan for the year. On the other hand, for large-scale customers, the basic charge is set at a unit price per 1kW, and the existing electric power company installs a special power meter that measures the power consumption every 30 minutes at the customer's power receiving point, and always consumes it. Electric power is recorded, but if the customer consumes the electric power in excess of the contracted electric power, a new contracted electric power with the surplus added will be decided from the following month, and the basic charge will be raised accordingly. Furthermore, the contract power is 5
If customers over 00kW use more than 100kW, the basic charge will be raised from the next month, and the additional basic charge calculated by multiplying the excess power by the above unit price will be multiplied by 1.5. I am billing the customer as money). By increasing the basic charge and collecting penalties as described above, existing electric power companies are promoting the prevention of excessive power consumption by customers and adjusting the demand to maintain the balance between supply and demand.

[0003]

Although the conventional method is effective as a power supply and demand balance measure for electric power companies, it is a large-scale customer that even if it temporarily exceeds the contracted electric power, it consumes the electric power as described above. There was a problem of having to raise the price and pay the contract surplus. In addition, the contract unit with the electric power company is in principle a building unit or a factory unit, so even if the same company has a separate site, it will be a separate contract, and one of the offices will be in a state where the contracted power is exceeded. Therefore, even if the other business had sufficient power, it could not take measures to prevent the contract power from being exceeded due to mutual exchange. Furthermore, even for existing electric power companies, the maximum power consumption value agreed with customers for high-voltage and special high-voltage power reception should be summed up, and all customers must have sufficient supply capacity even if they perform maximum consumption. It is necessary to build a shipping power facility that assumes
Equipment becomes idle at night and spring and autumn when power consumption decreases,
There was a problem that the efficiency of equipment operation decreased.

On the other hand, since March 2000, the received voltage is 200
The electric power retailing business has been liberalized only for ultra-large-scale customers of 00V or more and contract power of 2000kW or more, and the newly entered electric power companies can generate the power generated by themselves and the surplus power generated by the thermal power stations attached to the steelworks. It is now possible to purchase and hand over to the electric power transmission companies (existing 10 electric power companies) and use the power transmission and distribution equipment of the existing electric power transmission companies to supply to the customers of the electric power companies. Hereinafter, in the present specification, the existing 10 electric power companies will be referred to as electric power transmission companies, and the newly entered electric power companies will be simply referred to as electric power companies. In this case, the electric power company negotiates a maximum power consumption (contracted electric power) value with the customer and further contracts electric power with the electric power transmission company (connection supply contract). In this connection and supply contract, it is obligatory to constantly adjust the supply and demand so that the electric power transmission to the electric power transmission business and the power consumption of its own customers are always in equilibrium, so that if many customers If the power consumption exceeds the maximum power consumption value contrary to the above-mentioned agreement, the power supply and demand balance of the entire electric power company collapses and the electric power company falls into an excess demand state, and the electric power company replenishes the shortage of power from the electric power transmission company. As a result, the electric power company has a problem of having to pay the contract surcharge to the electric power transmission company.

Therefore, the electric power company constantly monitors the power consumption trend of each customer, and allows the customer who has exceeded the consumption amount to use the power from another customer who has a surplus power up to the upper limit. , It was necessary to balance the supply and demand balance within the company by asking other customers, including that customer, to save electricity. Furthermore, as the liberalization of electricity is expected to increase in the future and the number of small customers such as small and medium-sized enterprises is expected to increase, electric power companies are required to calculate (billing) electricity bills for customers, issue and mail bills, and use customer bank accounts. It is not possible for an electric power company to independently carry out charge billing / collection operations such as charge deduction
Considered to be costly.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a wide area power interchange transaction method and a wide area electricity interchange transaction system in which an electric power company generates excessive power. Eliminates the need for equipment
It is intended to provide a technology capable of reducing the electricity price and balancing the amount of power generation and the amount of consumption by the electric power company. Another object of the present invention is to provide, in a wide-area power interchange transaction method and a wide-area electricity interchange transaction system, a technique that enables an electric power company to improve efficiency in charging and collecting electricity charges. It is in. The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[0007]

Among the inventions disclosed in the present application, a brief description will be given to the outline of typical ones.
It is as follows. In order to solve the above problems, in the present invention, power is supplied from each power provider between a plurality of power providers and power receiving facilities of a plurality of customers to which power is supplied from each power provider. A power demand monitoring center that constantly monitors the power supply and the power consumption of each of the power receiving facilities is arranged. The power demand monitoring center is a power consumption data transmitted from a power meter installed at a power receiving point of each power receiving facility of all customers of an electric power company via a communication line (for example, a telephone line), and a plurality of electric power companies. The power supply / demand balance is constantly monitored and the power supply / demand status is received by receiving the transmission power data (power generated or purchased by each power carrier) of each power carrier transmitted from the power supplier via a communication line. Based on the above, the power saving execution signal is remotely transmitted to the demand control device or the like installed in the power receiving facility of each customer (for example, office building or store) through the communication line. The electric power company divides each of the power receiving facilities into a plurality of groups based on a power consumption pattern (for example, a fluctuation rate of power consumption or a time period when a consumption peak is reached) in the power receiving facility of each customer for a certain time or for a certain period. Classify.

For example, by combining power receiving facilities having similar power consumption patterns into one group, or combining power receiving facilities having different time zones or days of the week when power consumption peaks, one group is formed. Supply and demand can be adjusted easily. In addition, for example, even if the offices are dispersed in the same company, etc., they must be considered as one group and the power consumption values of the respective offices should be summed up so that the total exceeds the contracted power with the electric power company. In this case, it is possible not to collect excess contract money from customers. Also, in charging and collecting electricity charges,
The electricity demand monitoring center charges the customer based on the data such as the accumulated electric energy read from the electricity meter installed in each customer's electricity receiving facility via the communication line, and charges this together with the telephone number given to the electricity meter. By transmitting to the telecommunications carrier or the like, the telecommunications carrier or the like collects the electricity charge together with the telephone charge, etc., so that the electric power company can streamline the electricity charge billing / collecting work. Furthermore, the power demand monitoring center receives a contract from a plurality of electric power companies for a connection supply contract individually signed by the electric power company, and collectively contracts with the electric power carrier.

According to the present invention, in the power demand monitoring center, power consumers having different consumption peak hours and peak days of the week are configured as one customer group, and power providers having similar power consumption patterns are provided. Even if the power consumption suddenly increases and there is a power consumer who exceeds the contracted power set in consultation with the power company, by configuring one customer group, other power reception within the group will be If there is a risk of exceeding the contracted power as a whole, another group may further exceed the maximum power that can be supplied by the power company.
By sharing their own surplus power, it is possible to easily level the power supply in a short time. As a result, it is not necessary for each electric power company to have an excessive power generation facility, etc., so that it is possible to reduce the cost of electricity and balance the amount of power generation and consumption by the electric power company. In addition to the unnecessary payment of excess contracts to electric power companies, it is also possible for electric power consumers who have surplus electric power to enjoy the benefits such as discounting of electricity charges through flexible transactions.

Further, since a plurality of business establishments such as the same company can be grouped together to make a contract, it is possible to avoid excess contract power by accommodating the surplus power in the group, and to lower the electricity rate by leveling the power demand. Can be realized. Furthermore, since the electricity demand monitoring center collectively contracts for connection and supply contracts with existing electric power companies on behalf of the electric power companies, it is necessary for the electric power companies to independently adjust the supply and demand to supply the same amount at the same time. There is no. Therefore, even if there is an electric power company whose electric power demand exceeds the maximum supplyable amount, the electric power demand monitoring center acts as an intermediary to carry out flexible transactions with other electric power companies that have surplus electric power, so that it is possible to expedite in a wide area. It is possible to adjust demand and supply. In addition, billing for electricity
By entrusting the collection work to the power demand monitoring center and telecommunications carriers, it is not necessary for the power companies to perform these services individually, and by outsourcing jointly with other new companies, charges are charged.・ The cost of collection work can be reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings for explaining the embodiments, the same reference numerals are given to those having the same function, and the repeated description thereof will be omitted. [First Embodiment] FIG. 1 is a block diagram showing a schematic configuration of a wide area power interchange transaction system according to a first embodiment of the present invention. In addition,
The present embodiment is an embodiment in which electric power interchange transactions are performed within one electric power company, and in the present embodiment, the electric power company 11 is directly connected to the electric power transmission company 12 that undertakes electric power transmission. It shows the case where a supply contract is concluded. The electric power company 11 and the customer, through prior consultation, each power receiving facility (for example, an office building, a large store such as a department store, a railway, etc.) 10
Determine the maximum annual power consumption value (contracted power value) of 4,
Based on that, we set a monthly basic fee and sign a contract.

When the contract customer is decided, the electric power company 11
Group power receiving facilities into groups. If the power receiving facilities having similar power consumption patterns are collected and grouped, various power receiving facility group groups having different power consumption patterns can be configured. For example, the office building group
It consumes the most power during the daytime on weekdays, but the power consumption drops sharply on Saturdays, Sundays, and holidays. On the other hand, large store groups such as department stores have peak power consumption on Saturdays, Sundays, and holidays, and railway groups have peak power consumption on weekday mornings and evenings. Also, in groups such as telephone exchanges and Internet data centers, power consumption is almost constant throughout the year. Note that FIG. 1 illustrates a case where the power receiving facility is divided into two groups, a group A (108) and a group B (109). The power demand monitoring center 13 can efficiently supply power by operating the power in consideration of the power consumption characteristics of these groups. For example, between the office building group and the large store group, the peak consumption bands are in conflict with each other, so that there is an advantage that it is easy to carry out power interchange transactions.

Further, in FIG. 1, 101 is a computer installed in the electric power company 11, and 103 is a computer installed in the power demand monitoring center 13.
2 is a block diagram showing a schematic configuration of the computer 103 shown in FIG. 1. As shown in FIG. 2, the computer 103 includes a CPU 110, a main memory 111, an input means 112 such as a keyboard / mouse, a display 113, and communication. Control unit 114 and storage means 1 such as a magnetic disk
It consists of 15. Then, the computer 103 uses the wide area power interchange transaction program 12 loaded in the main memory.
0 is executed to execute the wide area power interchange transaction of the present embodiment. It should be noted that this program is provided by a recording medium such as a CD-ROM, or by downloading via a network. Further, the storage means 11 shown in FIG.
5, a customer database 131 and a power company database 132 are stored. As shown in FIG. 3, in the customer database 131, for each customer management number,
Telephone number of the telephone line to which the electricity meter is connected, personal data such as customer name, address, bank account, power consumption pattern type, group name to which it belongs, contract power value, maximum power consumption value, accumulated power for the month It stores the amount of consumption, discounts / additional charges due to flexible transactions for the current month, past clearing power consumption, and so on. As shown in FIG. 4, the electric power company database 132
For each power company management number, the power interchange transaction value by partner company for the month, cumulative power supply amount for the month, maximum power supply value, power company data such as power company name and transfer bank account, etc. Is stored.

The power interchange process in the wide area power interchange transaction system of the present embodiment will be described below with reference to FIGS. Computer 101 of electric power company 11
The computer 103 of the power demand monitoring center 13 uses the telephone line 111 to indicate that the electric power company 11 has transmitted the electric power procured by the electric power transmission company 12 to the electric power transmission company 12 by purchasing the electric power from its own power generation facility or from another company. (Step 201). At this time, the computer 101 of the electric power company 11 transmits the transmission power value to the electric power transmission company 102 to the computer 103 of the power demand monitoring center 13 (step 202). This electric power is sent to each of the power receiving facilities 104 of the customer via the power transmission network 105 of the electric power transmission company 102, and the consumption amount is recorded and monitored by the electric power meter 106 installed at the power receiving point, and as necessary. , Electric power data, etc.
3 to the computer 103 (step 20)
3). Computer 10 of power demand monitoring center 13
3 includes a customer information database 131, and the customer information database 131 stores the customer information described above.

The computer 103 of the power demand monitoring center 13 calculates the electricity charge on behalf of the electric power company 11 based on these pieces of information. When the power consumption of the power receiving facility 104 suddenly increases due to a hot summer and the contract power level is approached to some extent (step 204), the power meter 1
06 issues an alarm to the computer 103 of the power demand monitoring center 13 using the telephone line 107 (step 205). In response to this, the computer 103 of the power demand monitoring center 13 notifies the power receiving facility 104 that the contract power may be exceeded (step 206). The customer who receives this notification determines whether or not to save power (step 207). It would be good if the customer could save power and keep it within the contracted power (step 208).
If the customer determines that the contract power is inevitable due to the refusal to save power, the computer 103 of the power demand monitoring center 13 determines that the group A to which the power receiving facility 104 belongs.
Power receiving facility in (108), or other group B (10
In the power receiving facility in 9), it is investigated whether there is a customer who can accommodate the excess (step 209).

[0016] As a result of the investigation, the power receiving facility 110 which is flexible
Exists in another group B (109) (step 2
10) and if it accepts flexible transactions (step 21)
1), the computer 10 of the power demand monitoring center 13
3 receives the remaining power of the power receiving facility 110 from the power receiving facility 10
Then, the transaction for 4 is established and the power interchange is started (step 212). However, if there is no interchangeable power receiving facility (step 210) or refusal to accommodate flexibility (step 2)
11), the power demand monitoring center 13
The computer 103 of the electric power company issues a power saving request to some or all of the customers of the electric power company (step 22).
7) If it is still in the excessive demand state (step 228), adjustment for adjusting the electric power from another electric power company is started (step 229). Note that a method of executing a flexible transaction between electric power companies will be described in detail in a second embodiment described later. After that, if the outside air temperature decreases and the cooling heat demand subsides, and the power demand of the power receiving facility 104 that has fallen into excess demand falls below the contract power value (step 213), the computer 103 of the power demand monitoring center 13 , Power interchange is stopped (step 214).

At this time, the computer 103 of the power demand monitoring center 13 receives the maximum power consumption value in the power meter of the power receiving facility 104 via the telephone line 107 (step 215). The excess power value of the power receiving facility 104 is calculated from this data (step 216), and the electricity charge is calculated by adding the surcharge accordingly (step 21).
7). On the other hand, the power receiving facility 110 according to the accommodation, or
The power receiving facility that has accepted the power saving request in step 227 receives a part of the premium as an accommodation cooperation fee (step 2
18). The electricity fee including this surcharge and the accommodation cooperation fee are charged to the computer 10 of the power demand monitoring center 13.
3 in the customer database 132. In addition, the power demand monitoring center 13 charges the brokerage fee to the power company 1
Received from 1 (step 219). As a result, although the customer who has the power receiving facility 104 whose power demand exceeds the contracted power is temporarily charged with a surcharge for the excess, the monthly basic charge is not increased unlike the conventional case, and further, The customer who has the power receiving facility 110 can enjoy the benefits such as the reduction of the electricity charge by utilizing the remaining power capacity in the idle state.

On the other hand, on the contrary, when the electric power supply of the electric power company 11 exceeds the demand of the power receiving facility and becomes in the excessive supply state (step 220), the electric power demand monitoring center 13
The computer 103 of (1) investigates whether there is another electric power supplier in a supply shortage state (step 221), and if there is a corresponding electric power operator, supplies the surplus to the company (step 222). . If there is no corresponding electric power company, the computer 103 of the electric power demand monitoring center 13 gives an instruction to the computer 101 of the electric power company 11 to suppress the amount of power generated by itself and the amount of power purchased (step 223). After that, if the demand amount recovers until it almost balances with the supply amount (step 224), the flexible transmission to other companies or the restraint of in-house power generation / purchasing will be canceled (step 225), and the surplus will be removed by other companies. In the case where the payment is made to the above, the cooperation money is received from the partner company via the power demand monitoring center 13 (step 226).

Next, with reference to FIG. 8, a description will be given of charging and collection of electricity charges in the present embodiment. at first,
The telephone number assigned to the power meter for each customer is registered in the customer database 131 of the computer 103 of the power demand monitoring center 13 (step 230). If the customer is a company, for example, this telephone number is given to each power meter installed in a distributed business office or factory. To calculate the electricity bill when the transaction is performed, the computer 103 of the power demand monitoring center 13 reads out the data of the integrated electricity amount through the telephone line by the telephone number given to the electricity meter (step 231). Calculate the cumulative power for the current month. An approximate amount of money is calculated from the calculated amount of power (step 232), and the power demand monitoring center 1
The calculation or calculation is performed by adjusting the discount or premium amount due to the power interchange transaction stored in the customer database 132 of the computer 103 of No. 3 (step 233). By the electric power companies jointly using these charge calculation operations at the electric power demand monitoring center 13, the electric power companies do not need to provide their own charge calculation centers.

The collection of the electricity charge utilizes the fact that a telephone number is assigned to each power meter, and notifies the telephone number of the collection destination and the calculated electricity charge to the telecommunications carrier (step 238). ), The telecommunications carrier, etc., bills the electricity bill together with the monthly telephone bill (step 239), and the power provider receives the electricity bill from the telecommunications carrier (step 240). As a result, electric power companies can reduce costs such as billing / receipt preparation, mailing, and financial institution fees for debiting charges. In addition, when a company that is a customer wants to collectively pay the electricity charges of dispersed business establishments and factories (step 234), the telephone number given to each electric power meter of each business establishment can be used. By registering the electricity demand monitoring center 13 in association with each other as one billing target telephone number (step 235), the electricity charges of each establishment are collected in the billing target telephone number (step 236), and the telecommunications carrier etc. It is possible by entrusting the collection.

Further, when it is desired to collectively bill the electricity charges according to the business divisions of a company, the telephone number assigned to each electricity meter is grouped into the business divisions by the customer's instruction. This is possible by registering the telephone number designated by the customer as the charging target telephone number in the power demand monitoring center 13. That is, by summing up the electric charges calculated from the data such as the integrated electric energy of the electric power meter installed in the business unit and corresponding to the charging telephone number, the telephone number to be charged to the telecommunications carrier and the The electricity charge amount is notified (step 238), and the telecommunications carrier etc. collects the electricity charge together with the telephone charge etc. from the customer who has the telephone number to be charged in response to this (step 239), and collects the collected electricity charge. Pay the electric power company (step 240). As described above, in the present embodiment, flexible billing and collection of electricity charges can be realized at low cost.

[Second Embodiment] FIG. 9 is a block diagram showing a schematic configuration of a wide area power interchange system according to a second embodiment of the present invention. In the present embodiment, the electric power company A (2
1) entrusts a power supply demand monitoring center 24 to conclude a connection and supply contract with a power transmission carrier 23 that undertakes power transmission together with a plurality of power carriers such as another power carrier B (22), and The monitoring center 24 is the power transmission company 2
3 shows a case in which a connection and supply contract is directly concluded with 3 and the power supply and demand balance control is collectively performed. First, the electric power company A (2
1) and the electric power company B (22) predetermine the maximum electric power that can be supplied (contract electric power value), and the electric power demand monitoring center 24 determines the contract electric power value with the electric power transmission enterprise 23 with the value. , Conclude a connection supply contract at once. That is, a plurality of electric power companies and electric power transmission companies are entered to collectively mediate. Electric power company A (21) and electric power company B (2
In 2), the power receiving facilities are divided into groups by the method described above. In addition, in FIG. 9, 310 is the electric power company A.
The power receiving facility group 311 indicates a power receiving facility group of the electric power company B.

The power interchange process in the wide area power interchange transaction system of the present embodiment will be described below with reference to FIGS. 10 to 12. The computer 101 of the electric power company A (21) and the computer 102 of the electric power company B (22) are the electric power company A (21) and the electric power company B, respectively.
The computer 103 of the power demand monitoring center 24 indicates that (22) has transmitted the power procured by the power transmission company 23 to the power transmission company 23 by purchasing power from its own power generation facility or from another company.
(Step 401). At this time, the computer 101 of the electric power company A (21),
And the computer 102 of the electric power company B (22)
The transmission power value to the power transmission carrier 23 is transmitted to the computer 103 of the power demand monitoring center 24 (step 402). Power receiving facility 30 of power company A (21)
5, and the power receiving facility 309 of the power company B (22) are supplied with power via the power transmission line 306 of the power carrier 23, and the consumption is monitored by the power meter 307 installed at the power receiving point. , Will be recorded. Electricity meter 30
7 sends data such as the power consumption value to the computer 103 of the power demand monitoring center 24 via the telephone line 308 as needed (step 403).

Further, the customer having the power receiving facility 305 and the customer having the power receiving facility 309 determine the maximum annual power consumption value in advance in consultation with the power business operator A (21) and the power business operator B (22), respectively. However, the monthly basic fee etc. is determined based on it. Power demand monitoring center 2
The computer 103 of No. 4 stores customer and electric power company information as a database. In the database, for each customer number assigned to each customer, the telephone number of the telephone line to which the electricity meter is connected, the contracted power value, the maximum power consumption value, the power consumption pattern type, the group name to which the user belongs, the past total Electricity consumption, discounts through flexible transactions
The total amount of premiums and the like are recorded, and the electricity demand monitoring center 24 calculates the electricity rate based on these data, instead of the electricity business operator A (21) and the electricity business operator B (22).

When the power consumption of the customer is rapidly increasing, such as in the daytime in the midsummer, or when the electric power company approaches the maximum available power value (step 404), the computer 103 of the power demand monitoring center 24 , Even if the power consumption trend of the customer is investigated and the flexible trade or the power saving request is made within the electric power company as in the first embodiment (step 405),
When it is determined that there is a risk of excess demand (step 406), among the other electric power companies who have contracted to the electric power demand monitoring center 24, the electric power company or the power receiving facility that still has a sufficient supply capacity is Investigate if there is (Step 4
07) If there is a corresponding power receiving facility or business operator (step 408), the power interchange transaction with the power business operator whose contracted power is exceeded is mediated (step 409). In the present embodiment, the power receiving facility 305 and the power company A (21) are in a state of excess demand, and the power receiving facility 309 and the power company B (2)
2) responds to the power interchange. However, if there is no electric power company or power receiving facility that has sufficient supply,
In the worst case where the corresponding power receiving facility or the power exchanged by the business operator is insufficient (step 410), the computer 103 of the power demand monitoring center purchases the power from the power transmission operator 23 and notifies the power operator who has exceeded the contracted power. Power is transmitted to make up for the shortage (step 411). After that, the computer 103 of the power demand monitoring center 24 judges that the outside air temperature has dropped and the cold heat demand has subsided, and the power demand of the power company A (21) that has fallen into the excess demand state has fallen below the maximum supplyable value. If so (step 412), power interchange and supply are stopped (step 413).

The computer 103 of the power demand monitoring center 24 reads the maximum power consumption value using the telephone line 308 from the power meter 307 of the power receiving facility 305 that has exceeded the contracted power (step 414) and calculates the contracted power excess amount. (Step 415). On the basis of this result, the computer 103 of the power demand monitoring center 24 calculates the electricity charge by adding a surcharge corresponding to the excess of the contracted power (step 416), and the electric power company A (21 who has further exceeded the power consumption. From), the intermediary fee related to the interchange transaction is collected (step 417). On the other hand, the computer 103 of the power demand monitoring center 24 calculates the charge discount amount of the power receiving facility 309 according to the accommodation and the above-mentioned power company A (2
Among the transaction brokerage fees collected from 1), the electric power company B (2
Payment of accommodation cooperation fee to 2) (step 4)
18, step 419).

When the power demand monitoring center 24 purchases electric power from the electric power transmission company 23 for supplementing the shortage (step 420), the contracted electric power value between the two is exceeded and the electric power is purchased. If so (step 421), the electric power company A (21) pays the contract excess amount to the electric power transmission company 23 via the electric power demand monitoring center 24 (step 422). On the other hand, when the electric power supply of the electric power company A (21) exceeds the demand of the customer and becomes in the excessive supply state (step 423), the computer 103 of the electric power demand monitoring center 24 is in the other insufficient supply state. It is investigated whether or not there is an electric power company (step 424), and if the electric power company B (22) is applicable, the surplus portion is flexibly supplied to the electric power company B (22) (step 425). However, if there is no corresponding electric power company, the computer 103 of the electric power demand monitoring center 24 determines that the electric power company A (2
Until the excessive supply state is resolved (step 427), 1) is instructed to suppress the in-house power generation amount and the power purchase amount (step 426).

When the surplus is accommodated by another electric power company,
The flexible cooperation money is received from the partner electric power company through the power demand monitoring center 24 (step 428). The method of charging and collecting the electricity charge is the same as that of the first embodiment, and the processing flow thereof is the same as that of FIG. As a result, low-cost and flexible billing and collection of electricity charges can be realized. As described above, according to the present embodiment, the power demand monitoring center (13, 24) plays a central role in power supply / demand balance control, which is difficult for an electric power company to operate independently. By exchanging trade with each other, stable power supply and efficient business operation become possible, and flexible power supply and demand balance can be easily achieved in a wide area that spans multiple prefectures. In addition, it will be possible to efficiently operate the electricity charge billing and collection of electric power companies. Although the invention made by the present inventor has been specifically described based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Of course,

[0029]

The effects obtained by the typical ones of the inventions disclosed in the present application will be briefly described as follows. (1) According to the present invention, it is possible to eliminate the need for an electric power company to have an excessive amount of power generation equipment, reduce the cost of electricity, and balance the amount of power generation and consumption by the electric power company. (2) According to the present invention, it becomes possible for the electric power company to improve the efficiency of the charge and collection work of the electric charge.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a wide area power interchange transaction system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a schematic configuration of a computer 103 shown in FIG.

FIG. 3 is a diagram showing the contents of a customer database 131 shown in FIG.

FIG. 4 is a diagram showing the contents of a power company database 132 shown in FIG.

FIG. 5 is a processing flowchart of the system according to the first embodiment of the present invention.

FIG. 6 is a process flowchart of the system according to the first embodiment of the present invention.

FIG. 7 is a processing flowchart of the system according to the first embodiment of the present invention.

FIG. 8 is a flowchart of a power charge billing method and a collection process thereof according to the first embodiment of the present invention.

FIG. 9 is a block diagram showing a schematic configuration of a wide area power interchange transaction system according to the first embodiment of the present invention.

FIG. 10 is a processing flowchart of the system according to the second embodiment of the present invention.

FIG. 11 is a processing flowchart of the system according to the second embodiment of the present invention.

FIG. 12 is a processing flowchart of the system according to the second embodiment of the present invention.

[Explanation of symbols]

11, 21, 22 ... Electric power company, 12, 23 ... Electric power transmission company, 13, 24 ... Electric power demand monitoring center, 10
4,110,305,309 ... Power receiving facility, 105,30
6 ... Transmission and distribution line network, 106, 307 ... Electric power meter, 10
7, 111, 308 ... Telephone line, 108 ... Power receiving facility group A, 109 ... Power receiving facility group B, 101, 102
The computer of the electric power company, 103 ... The computer of the power demand monitoring center, 310 ... The power receiving facility group of the power company A, 311 ... The power receiving facility group of the power company B.

Claims (20)

[Claims] 1. Power supply supplied from each of the electric power companies between a plurality of electric power companies and a plurality of power receiving facilities of a plurality of customers to which the electric power is supplied from each of the electric power companies, and A wide area power interchange transaction method in a wide area electricity interchange transaction system including a power demand monitoring center that constantly monitors the power consumption of each electricity reception facility, wherein each of the electric power companies sets each electricity reception facility of each of the customers to a certain condition. When there is a risk that the power consumption of a power receiving facility of a customer in a certain group will exceed a preset upper limit, the power demand monitoring center Wide-area power interchange that is characterized by trading the surplus power up to the upper limit of each customer or other group's customers to balance the supply and demand balance as a whole. Method. 2. The electric power company classifies each of the power receiving facilities into a plurality of groups based on a power consumption pattern of each of the power receiving facilities for a certain period of time or a certain period of time. Wide area power interchange transaction method described. 3. The electric power companies collectively collect power receiving facilities having similar power consumption patterns into one group,
Alternatively, the wide area power interchange transaction method according to claim 2, wherein facilities having different power consumption hours or days of the week are combined and classified into one group. 4. The wide area power interchange method according to claim 1, wherein each of the electric power companies classifies a plurality of power receiving facilities of the same customer over a wide area into one group. 5. Each of the power receiving facilities includes a power meter installed at a power receiving point, and each of the power meters constantly monitors a maximum power consumption value of the power receiving facility, and the maximum power consumption value is set in advance. When there is a risk of exceeding a preset value, a warning is sent to the power demand monitoring center via a communication line to the effect that each power receiving facility is in a power demand tight condition. The wide area power interchange transaction method according to claim 1, wherein the wide area power interchange transaction is performed. 6. The power demand monitoring center sends a power saving request to the power receiving facility in a power tight condition via a communication line, requesting power saving to urge itself to save power and reduce power consumption within the contracted power. If there is a refusal to save electricity, as a result, the power exchange transaction between the customer who has the power receiving facility that may exceed the contracted power and the customer who has the available power and is capable of power interchange transactions. The wide area power interchange transaction method according to claim 5, wherein intermediation is performed. 7. The power demand monitoring center, if there is a possibility that the total power consumption value exceeds the maximum available power value that can be supplied by each of the electric power companies, a part of each of the electric power companies The wide area power interchange method according to claim 1, wherein a power saving request is transmitted to all the customers via a communication line. 8. The power demand monitoring center, when the electric power supplied from each of the electric power companies becomes excessively supplied, generates power of each of the electric power companies through a communication line to each of the electric power companies. The wide area power interchange method according to claim 1, further comprising transmitting an instruction to suppress the operation of the facility or to transmit the power to another power provider. 9. In a connection supply contract between each of the electric power companies and an electric power transmission company that undertakes the electric power transmission business, the electric power passed by each of the electric power companies to the electric power transmission company and the power supply of each electric power company. When it is stipulated that each electric power company always adjusts the supply and demand so that the total power consumption of the customers is always balanced, the electric power demand monitoring center receives the contract from the electric power company. The wide-area power interchange transaction according to claim 1, wherein a wide range of power interchange transactions are performed among a plurality of outsourced power operators by collectively contracting with each of the power outsource operators. Method. 10. The electric power demand monitoring center charges an electric charge to a customer who has received an electric power interchange in excess of a contracted electric power with each of the electric power companies, and further increases the electric power charge according to the amount of the electric power interchanged. 8. The customer according to claim 6 and claim 7 or claim 7, wherein the surcharge is used to discount the electricity charge according to the accommodation / saving power value. Wide-area power interchange method. 11. The power demand monitoring center uses the data of the integrated power amount received from the power meter to obtain an approximate amount of the electricity charge of the customer, and from the amount of money, a premium or a discount payment is made depending on whether or not there is power interchange. The wide area power interchange transaction method according to claim 10, wherein the electricity price is calculated by performing the above. 12. When each of the power receiving facilities of the customer is dispersed over a wide range, and when each of the customers desires to collectively bill the electricity charge of each of the power receiving facilities,
The wide area power interchange method according to claim 11, wherein the power demand monitoring center calculates an electricity charge of each of the power receiving facilities and sums up the electricity charges to calculate an electricity charge. 13. The power demand monitoring center, when each customer desires to charge the electricity charge of each power receiving facility by division by business division or business establishment,
The wide area power interchange method according to claim 11, wherein the electricity charge of each power receiving facility is calculated for each business unit or each business unit. 14. An operator of the power demand monitoring center sends the electricity charge and a telephone number to charge the electricity charge to a telecommunications carrier or the like, and the telecommunications carrier who receives the electricity charge calls the telephone charge and the The wide area power interchange method according to any one of claims 11 to 13, wherein the customer having the telephone number is billed together with the electricity bill. 15. Power supply supplied from each of the electric power companies between a plurality of electric power companies and a plurality of power receiving facilities of a plurality of customers to which electric power is supplied from each of the electric power companies, and A wide area power interchange system including a power demand monitoring center that constantly monitors power consumption in each power receiving facility, wherein the power demand monitoring center is a power receiving facility for a customer in a group classified under certain conditions. First means for allowing the marginal power up to the respective upper limit value to be exchanged with another customer in the group or a customer in the other group when the power consumption of the above may exceed a preset upper limit value. A wide-area power interchange system characterized by comprising: 16. Each of the power receiving facilities includes a power meter installed at a power receiving point, and each of the power meters constantly monitors a maximum power consumption value of each of the power receiving facilities, and the maximum power consumption value is set in advance. When there is a risk of exceeding a preset value, a warning is sent to the power demand monitoring center via a communication line to the effect that each power receiving facility is in a power demand tight condition. The wide area power interchange system according to claim 15, wherein the wide area power interchange system transmits. 17. The power demand monitoring center sends a power saving request to the power receiving facility in a power tight condition via a communication line to request a power saving request to reduce power consumption within the contracted power by itself. When the power saving request is rejected, the first means is provided with a customer who has the power receiving facility that may exceed the contracted power, and a power that has surplus power. 2. An intermediary of an electric power interchange transaction with a customer capable of the interchange transaction.
The wide area power interchange transaction system according to 6. 18. The customer, in which the power demand monitoring center stores in advance a telephone number assigned to the power meter installed at a power receiving point of each power receiving facility of each customer in association with each customer. An information database, a third means for calculating an approximate amount of electricity bill of the customer using the data of the integrated electricity amount received from the electricity meter, and an electric power interchange exceeding the contracted electric power with each electric power company. For customers who receive the electricity, the electricity fee will be increased according to the amount of the interchanged power,
In addition, for customers who respond to the accommodation of the above-mentioned surplus power and customers who respond to the request for saving electricity,
Fourth means for discounting the electricity charge according to the power saving value; fifth means for calculating the electricity charge by performing a surcharge or a discount settlement depending on whether or not there is power interchange from the estimated amount; and the calculated electricity. Corresponding charges to the above telephone number,
The wide area power interchange transaction system according to claim 17, further comprising: a sixth means for storing in the customer information database. 19. When each of the power receiving facilities of the customer is dispersed over a wide range, and when each of the customers desires to collectively bill the electricity charge of each of the power receiving facilities,
The power demand monitoring center includes a seventh means for calculating the electricity charges of the respective power receiving facilities and summing them up, and the sixth means corresponds to the combined electricity charges and a telephone number of a collecting destination customer. 19. The wide area power interchange system according to claim 18, wherein the system is stored in the customer information database. 20. In the case where each of the customers desires to charge the electricity charge of each of the power receiving facilities by business division or business establishment, the power demand monitoring center,
Each business unit or each business unit is provided with an eighth means for calculating an electricity charge of each power receiving facility, and the sixth means is an electric power calculated for each business unit or each business site unit. 19. The wide area power interchange system according to claim 18, wherein the charge is stored in the customer information database in association with the telephone number of the collecting customer.