SE505642C2 - An energy distribution system - Google Patents

Abstract

The present invention concerns an energy distribution system with one or more energy suppliers and several energy consumers (3), where each consumer is assigned energy measuring equipment (2). The instantaneous value of each system-related energy measuring equipment can be read by a computer. Each consumer (3) is provided with a terminal (11) connected to the computer (5), at which consumer (3) can activate the computer (5) via the terminal to show the relevant consumption during a selected period of time or equivalent.

Description

V1 'N ä 505 642 [z _ This is normally done by reading an energy consumption measuring device belonging to each consumer and then sending, to each of these consumers, one against the consumption, and in the case of a system of fixed charges, whole or part of the fee, corresponding bill, with defined payment terms.

Such a debiting system means that the supplier has to wait a long time before the compensation is received and in addition the supplier is charged with costs for reading each consumer's consumption, to register notified movements, to close and open for energy delivery after non-payment and payment, a cost which the supplier must distribute to all consumers. Measures have also been taken to improve and streamline the required billing system, in order on the one hand to fulfill a wish from the suppliers to be able to receive compensation for delivered energy, such as electricity, to each of the consumers at the lowest possible cost and à on the other hand, be able to fulfill a wish from consumers to be able to more directly adapt the charge to the current energy consumption.

A billing system which has been used in the electricity distribution stage and which can be regarded as a balanced compromise is to have each electricity-measuring equipment read once a year, with assigned staff, and to feed the value applicable to the subscriber regarding the annual consumption to a computerized billing system. allows a future annual consumption to be calculated on the basis of previous annual consumption, whereby a charge based on an estimated (proportional) energy consumption will be possible at predetermined time intervals, such as 2, 3 or 4 months, to each energy consumer.

Once a year a final account is drawn up after the reading, å '-. š fi s 642 »N | -, 3 _ which takes into account the final and actual annual consumption.

Such a charging system requires, however, that every time a subscriber or an electricity consumer moves, a written notification is required to the supplier, who must again send staff to read the energy measuring equipment or accept that the relocated subscriber reads the equipment himself and based on that thus reading the value establish a final adjusted count.

Practical experience shows that self-reading can create problems every time a newly relocated subscriber does not approve the relocated subscriber's reading.

Today's system also entails major disadvantages as the subscribers' ability to pay is often poor. In the event of non-payment, the following procedure applies: Reminder is issued seven days after the due date of the invoice. After another twenty days, debt collection claims are sent. If payment has not been received ten days after the collection request, the electricity delivery will be suspended. In the event of bankruptcy, the electricity supplier loses the entire bill amount plus payment for another six weeks of electricity delivery. The opening procedure is also staff-intensive.

Since reading only takes place once a year, it is possible to detect meter error only at this time.

Practical experience from such a debiting system is that many consumers complain about bills received. Subscribers with electric heating of homes have well-founded reasons to complain more often, since an above-mentioned proportional estimated consumption and the distribution over the different seasons of the year can not take the necessary account of the year's temperature variations and thus some charges, which apply to the warmer time of year, to be perceived as unrealistically high. 505 eíš i '~ "__4 .. u .y The need for a new billing system, which can even more take into account the wishes of suppliers and consumers' wishes for a better insight into current consumption, is therefore great.

If further consideration is given to some instructions, given in accordance with the present invention, it can be stated that various pre-purchase systems are previously known, where an electricity energy consumer has to pay in advance for a rental of an appliance and for utilized electricity consumption.

Examples of the prior art in this respect are coin telephones, vacuum cleaners, copiers and the like, which can be activated by coin tossing and / or banknote feeding equipment. Parking systems also exist and are based on the pre-purchase principle.

Further examples of the prior art are shown in the publications.

US; B; ái5l3i3ß2i An energy distribution system is shown here. The system is designed to remotely read a consumer's meter from a central unit. For this purpose, communication signals are used which carry a control command, corresponding to the electrical consumption at the place of consumption. Furthermore, an option is provided here to transform over the signals to the consumer's television receiver, by reading the memory (30) via a generator (34).

QS; A; Ai2lßi121i A system for measuring the current energy consumption of a consumer is specified here and the system makes it possible to transfer measured values to a distributor for a charging purpose. The mentioned measured values can be transmitted via the telephone line. f "d šns 642 Also here is a system where the energy consumption of different users or consumers is converted into signals that can be transmitted and read by a microprocessor. ns-a_¿ 953 Q8] Here is a home-internal information system, where a current status of several home-related devices can be evaluated via a home-related bus line and where the respective status can be displayed on a television receiver, whereby the viewer can easily check each current status.

Ennkschan_11L12§Ai A system is shown here where a "wattmeter" is connected to a central unit and where a "gas meter" and other meters are also connected to the central unit.

The various meters or sensors are assigned their respective inputs.

N ï H IEKHISKI_EBQBLEM Taking into account the previous state of the art, as described above, it should be considered a technical problem to be able to offer a functioning system, for a charge of a utilized energy consumption, which can suitably be based on a pre-purchase principle and which would be able to significantly reduce and even eliminate the losses that an energy supplier may suffer in the event of bankruptcy and reduce and even eliminate the interest losses that lie in any payment corresponding to proportionate or actual energy consumption taking place in arrears and during utilization of a TV cable network.

It should be considered as a technical problem to be able to adapt the billing system and control over current consumption sos s¿ä ”AA ~ * __6 .. so that it adapts well to a price-controlled deregulated market and thus create conditions for registering different amounts of energy during different periods without manual reading, which will offer an opportunity to be able to change and choose different electricity suppliers in a flexible way.

It must also be considered a technical problem to be able to offer an energy distribution system, which requires small human resources and where consumers' dissatisfaction with a calculated and proportionate charge has been completely eliminated.

It must also be considered a technical problem to be able to create such conditions by simple means that every energy consumer, and preferably every electricity-energy consuming subscriber within an electricity-energy distributing system, can at any time he so desires an instantaneous information on current consumption and / or information on remaining energy consumption, which corresponds to a previously made advance payment.

It must also be considered a technical problem to be able to realize the advantages of allowing each consumer in such an energy distributing system to be equipped with a terminal, connected to a computer, and preferably a monitor, whereby each consumer can, via the terminal and possibly a personal code, activate the computer to get a visual information about current consumption via the monitor or similar. Such visual information may include information on the energy withdrawn, if an estimated time remains, with the same energy consumption, before the pre-purchase has been used up and the like, as well as a catalog of the subscriber's energy consumption, including advice to subscribers fl eñte fl.

It should also be considered a technical problem to be able to realize the benefits of giving each consumer an opportunity to pay to the supplier via a pre-purchase system one of .y á _, ....- 'v, __7 _ D the consumer himself determined , which will represent a certain fixed fee, such as a dependence on a certain power outlet and / or a certain energy consumption, and that said monitor via the computer can momentarily show the size of unused input.

It is also a technical problem to be able to realize the advantages that will be offered in a deregulated electricity-energy market, whereby a competition which arises in this case necessitates individual tariffs, which can easily be implemented in this system.

It is also a technical problem to be able to realize the importance of and the simplicity of having each energy measuring equipment be equipped with or assigned a contactor, connected in the power supply circuit, which at a consumed amount of energy is affected by the computer to interrupt the power supply. The amount of energy consumed does not have to be directly adjusted to the last amount paid, but here an opportunity is offered for the supplier to use adapted credit levels.

Furthermore, it should be considered a technical problem to be able to realize the simplifications inherent in allowing a number of consumers to be coordinated to and connected to one and the same computer, which is connected to each one of the said consumers assigned, of the energy measuring equipment.

Furthermore, it should be considered a technical problem to be able to realize the importance of and the simplicity of using a common connection for all consumers, preferably one in a home, such as a villa, apartments in an apartment building, already installed line, such as telephone line or preferably a TV cable, adapted to transmit individual information from each consumer to said computer and vice versa.

It must also be considered a technical problem to be able to realize the simplifications associated with using a connection, preferably a telephone line but also the energy supplier's own lines, such as power lines, by using signal transmission message (harmonics) alternatively, sound resp. operator, via terminal equipment assigned to the operator, communicate with said computer, to evaluate the instantaneous status of the computer and control the functions of the computer.

There is also a technical problem in being able to realize the benefits of having information stored in the computer by resp. supplier and thereby be able to evaluate resp. consumer, p.g.a. the advance purchase, outstanding energy and, depending on an estimated energy consumption, to announce resp. consumers an estimated time when the energy consumption, based on the pre-purchase, has been consumed and that a new pre-purchase should be considered.

The supplier can also announce the estimated time when the energy supply can be assumed to cease.

LQSHIHQEH In order to solve one or more of the above technical problems, the present invention now provides an energy distribution system with one or more energy suppliers and a plurality of energy consumers and where each consumer is assigned his own energy measuring equipment.

In such a system, the present invention provides that a TV cable or the like is common to all system-associated consumers, that the instantaneous value of each system-associated energy measuring equipment is readable by a computer unit, that each consumer is provided with a terminal connected to the computer unit and preferably a monitor (such as a television set), each consumer being able to activate the computer unit via the terminal and preferably a code to display over the monitor, or otherwise, current consumption for a selected period of time or the like that each consumer has his own code and that the computer unit is connected to the TV cable via an interface. As proposed embodiments, falling within the scope of the present invention, it is provided that each consumer should be able, via a pre-purchase system, to pay for a fixed fee, such as a certain power outlet, etc. and / or a certain energy consumption and that said monitor can show unused input and the like.

Furthermore, it is instructed that each electrical energy measuring equipment shall be provided with a contactor connected in the power supply circuit, which in the event of the amount of energy consumed is affected by the computer to interrupt the power supply.

It is further indicated that a number of consumers are connected to one and the same computer, which is connected to each of the mentioned consumers assigned energy measuring equipment.

Furthermore, a first connection common to all consumers is provided, such as an antenna cable adapted for TV signals, adapted to be able to transmit individual information from resp. consumers to said computer and vice versa. Via a second connection, such as a telephone line, connected to the computer or the energy supplier's own power lines by using harmonics, resp. supplier connected to the computer.

Furthermore, it is instructed that resp. consumer, p.g.a. the pre-purchase, the remaining energy is determinable and readable and that in the case of a predetermined remaining amount of energy, the end point is calculated and this announces resp. supplier resp. consumer.

The advantages which can mainly be considered to be characteristic of an energy distribution system, in particular an electrical energy distribution system, in accordance with the present invention, especially if the system also uses a pre-purchase system, is that this has created conditions for electricity. sus ÉÄ2 AA ~~ _ lg _ ull gile supplier to reduce losses, associated with bankruptcies and the like, as well as interest losses, at the same time as the human resources can be reduced and for resp. consumers are given an opportunity to better adapt payments made to e.g. utilized electricity consumption and where the consumer himself can easily determine his consumption by taking a code to a computer unit.

What can primarily be considered as characteristic of an energy distribution system, in accordance with the present invention, is stated in the characterizing part of the following claim 1.

A presently proposed electrical energy distribution system, in accordance with the present invention, will now be described in more detail with reference to the accompanying drawing, in which: Figure 1 shows the basic structure of the system in block diagram form, Figure 2 schematically shows a pre-purchase equipment and Figure 3 shows in strong functional simplification a computer equipment, usable according to figure 1.

Thus, with reference to Figure 1, there is shown in strong simplification an electrical energy distribution system, where an incoming electrical energy supply conductor or cable 2 is distributed to a number of electrical energy measuring equipment, where the figure shows that an incoming and distributed line or cable 2a is connected to an electrical energy measuring equipment 2b and then out on a power supply line or cable 2c to an electrical energy consumer 3.

For the understanding of the present invention, it is irrelevant which equipment the subscriber or consumer 3 has, so that these are not even indicated.

Since other electrical energy measuring equipment is connected to the respective electrical energy consumers 3a, 3b, 3c and 3d, in the same way as the equipment 2b is connected to the consumer 3, no description of the complete system in this respect is required.

It suffices to state that the system can incorporate a number of electrical energy consumers, one of whom has been given the reference number 3.

The invention is now based on the fact that each system-associated electrical energy measuring equipment, such as the instantaneous value indicated by the reference numeral 2b, can be read via a line 4.

A computer 6 available by service personnel or an operator can cooperate with the computer 5, comprising a card reader 6a and a keyboard 6b. The terminal is mobile and can be connected temporarily to the computer 5 via an interface 6 ”.

A modem equipment 7 is connected to the computer 5, so that over a telephone line 8 each of the electrical energy suppliers can come into contact with and in collaboration with the computer 5 evaluate data entered in the computer, such as additions and changes made from the terminal 6 and from the electrical energy. the measuring values specified in the measuring equipment 2b. The information entered into the computer 5 via subscriber-associated readers 12 'will also be available to the supplier and / or service personnel or operator. This will be described in more detail with reference to Figure 3. l.

The computer 5 is connected, via an interface equipment 9, to a TV antenna cable 10. This antenna cable 10 is intended to coordinate all consumers 3, 3a-3d, which are associated with the computer 5, whereby each consumers can get in touch with said computer.

For this purpose, each consumer must be provided with a terminal 11, comprising an interface and a reader. For the consumer 3, an interface 12 and a reader 12 'are illustrated.

A monitor 13 is advantageously further connected to the cable 10, and this is considered to belong to a TV set 13 '.

Each consumer 3 is then provided with a terminal 11 connected to the computer 5 and a monitor 13, wherein each consumer can via the terminal 11, and preferably a code activated thereon, activate the computer 5 to show on its own monitor 13 current consumption during a selected time period or the like.

Each consumer 3 can pay a fee determined by the consumer himself and the time of payment via a pre-purchase system, which is shown very diagrammatically in Figure 2.

Figure 2 is intended to illustrate a pre-purchase equipment 20, provided with a banknote entry 21 and a keyboard 22. The banknote entry can, if desired, be coordinated with a code, whereby a card 23 is supplied with information corresponding to the amount paid, a number identification and possibly entered identification code.

This card 23 shall be used in the system and shall in any case be provided with a number identification, legible within the system.

The subscriber or consumer 3 can thus obtain and use a card 23 and this may be available, depending on the chosen payment, in different denominations, such as 200, 500, 1000 and 2000 SEK. .

It is within the system's possibilities to recognize a consumer via the computer 5 a certain discount when pre-purchasing higher denominations, which means that the energy extracted will be cheaper for subscribers or consumers who feed the system with a card of high denomination.

The subscriber or consumer 3 can via the terminal 11 and the monitor 13 receive instant information about their electricity consumption and the remaining electricity supply and can thus determine the time for acquiring a new card.

The computer 5 is connected via a line 14 to a contactor 2d, which is activatable to interrupt the supply of electrical energy if no new "card" 23 is fed into the system via the reader 12 'or in another way, for example that the supplier enters paid fees. via the telephone line 8 and the modem equipment 7 to the computer 5.

The system offers the possibility of determining the share of the fixed costs that the supplier's tariff contains through daily settlement. Delayed fixed charges, caused e.g. that the subscriber has not purchased a new card, is only settled when loading a new card to the reader.

Some electricity suppliers have distribution networks in areas that cannot transmit the maximum power, and then the supplier can "strengthen" its electricity network within the said area by introducing time tariffs (low prices during certain hours or very high prices during other hours or periods) and thus the supplier can regulate energy use and avoid new investments. In the proposed system, such tariffs can be introduced in a very simple way for each subscriber, area or region. f 'H. Eel: _ 14 _ The system can be adapted to all existing approved electricity meters without restriction.

The machine 20 receives a receipt, which reports taxes, such as VAT and energy tax.

The terminal 6 can, as Figure 1 shows, be connected and disconnected by an operator for temporary use, via an interface 6 ', to a central computer 5 and can in a known manner read the value, which is present on an inserted card 23 in the card reader 6b . The information is transmitted to the computer 5.

The terminal 6 and the reader 12 'are both arranged so as to destroy the area on the card 23 where the information is located, thereby making the card unusable for a re-entry without prior pre-purchase in the equipment, according to Figure 2. from a computer 5.

When a card 23 is inserted in the card reader 6a of the terminal 6 or in a corresponding card reader 12 'or in another system-related manner, and if a system with identification code has been activated on the keyboard 6b, it is checked that the activated code corresponds to the code on the card 23 and that the value of the card with its number identification is entered in the computer 5.

Thereafter, an evaluation is made of how much energy the amount entered corresponds to, with regard to a deduction for fixed fees, such as a subscription fee, power requirements or the like, and supplements for any discounts. Necessary consideration should thus be given to the power requirement.

The system also offers the possibility that it can determine the relevant proportion of the annual fixed charges but also the charges relating to the time between the last payment made and the current payment and make _15 .. a deduction for these and then evaluate the amount of energy represented by the remaining amount.

The percentage of fixed costs of the fixed fees can also be deducted.

The energy value thus obtained is input to a memory, a memory 3a for the consumer 3.

Via the line 4, the energy consumption is continuously sensed and this is stored summed up in a memory, a memory 3b for the consumer 3.

A calculation unit 30 included in a computer equipment 5 is adapted to recalculate the information from the reader 12 'within a section 31 to a value corresponding to a fixed fee and a calculated number of kWh.

By activating the computer equipment 5 and its calculation unit 30, via the equipment 11, the cable 10 and the circuit 9, each consumer, such as the consumer 3, can on his monitor or TV set 13 get all information about the consumption, via a computer-oriented and for current information calculating section 32, on the remaining amount paid in, via a section 33 on calculated time when the payment made is consumed with an assumed average consumption, etc. Messages input from the electrical energy supplier via line 8, a receiver 34 and a section 35 can also be displayed via the television set 13, by connecting it via the equipment 11 to a special channel, an energy channel via a section 36.

The exemplary embodiment illustrates that five different electrical energy consumers 3, 3a-3d are connected via an antenna cable 10 to one and the same computer 5 and which are connected to each of the said consumers assigned energy measuring equipment. 1.3: 505 ÉÃ2 'f ~ _ 15 _ ningarna.

The card 23, which can be used to advantage, is used today in a number of different areas. Requirements that should advantageously be placed on the card are: The card 23 must have a quality that means that it can be used at least 15 times.

Each card must have its own identification code and / or number identification.

- The programmable memory area used in each case must be destroyed so that the card can not be used again except after a new programming.

Programming should only be able to be performed by the supplier and equipment owned by the supplier.

- There must be an opportunity for a so-called "handshake" between the card 23, the terminal 11 and the computer 5, at each use.

- The use of the card should be very simple.

It must be possible to purchase such programmable cards 23 in different places.

There must be unprogrammed cards in an equipment 20 or machine. The consumer can choose between using a previously purchased card (which can be used 15 times in the machine) or buying a new card, with a deduction for the card cost.

The consumer 3 can select the value to be programmed on the card by feeding the machine 20 with banknotes, another magnetic card, credit card or the like. After the entry, the card 23 will be programmed with the denomination entered.

It should also be possible to buy pre-programmed cards with different denominations in certain places.

It may also be possible to have the programming done at home, with the help of a reader and a telephone, if you use an approved payment card | \ v * See 642 _ 17 _. It is an absolute requirement that the programming can take place in a secure manner without the possibility for unauthorized persons to communicate with the system.

All communication between a reader 12 'and a computer belonging to it and TV sets must take place via TV antenna cables, which are already installed in each apartment building. The system has been designed in a maintenance-friendly way, so that ev. errors can be easily identified and remedied.

In the computer 5 there may be a control program within section 37, which performs function check of communications and reports any. error, either via TV sets or message directly from the computer 5 to the supplier via line 8. The communication is two-way, i.e. from the reader 12 'to the computer 5 and from the computer to the reader and the TV set.

The computer 5 can also be automatically, via a section 38, connected to the telephone network via line 8 or the electrical cable network so that communication with e.g. electricity suppliers is possible. The communication takes place with a frequency protocol with a security code for different types of authorization. The communication must be provided with a security system that prevents unauthorized persons from entering the computer 5. In addition, the security system must include an alarm system, within section 39, which alerts the electricity supplier when unauthorized persons attempt to break into the system.

The use of already installed cables for TV antenna means that no extra costs for advanced indoor cabling are needed. In this way, you get access to TV sets and to the transmission of information to the customer. Since the computer 5 is connected to the telecommunications network, the electricity supplier can transmit information to customers or consumers both collectively and individually, via a section 40.

C In addition, the electricity supplier can, via a section 43, retrieve all in- H Av:: _. 505 såå ~~ -'13 _ interesting information stored in the computer 5. Change of current tariff for each consumer, which is usually done annually, can now be done via the telephone network to all computers 5 that are in the system, via a section 42 Continuous information , via a section 43, about each consumption, gives the electricity supplier the opportunity to quickly identify any faults in meters and possibly. cheating in the system.

The reader 12 'and the terminal 11 are a product owned and supplied by the supplier and are consumer connected. In the reader 12 'there are opportunities to both read and write on the card.

Requirements for the reader are: - Can be used in a very simple way.

- Have high quality to withstand home environment, e.g. families with children.

- Can be replaced in a simple way.

- Easy to identify errors.

- The design must be aesthetic and fit in a home environment.

The interface 12 is an adaptation unit that converts codes from the reader 12 'into a code adapted to a selected communication protocol. Correspondingly, the information from computer 5 relating to the reader 12 'is converted into a code which matches the reader 12'. The interface 12 also opens the communication channel towards the TV set. Each interface 12 has an identification code that cannot be changed. That code is used as a filter when transmitting information concerning the apartment or the consumer where it is installed.

The interface 12 must also have LEDs, which must be able to warn the subscriber or consumer when it is time to buy a new card, via a calculation circuit 44.

The subscribers who do not have a TV set have a simple communication with the system in this way. Other diodes must be used -419- i to report that a fault has occurred in the system. The reader 12 'and the interface 12 should be placed in the same unit. The requirements placed on the reader must also apply to the interface.

The equipment ll must be designed in a completely electrically safe way with a negligible energy consumption. The reader 12 'and the interface 12 must function even if the power supply to the consumer is switched off.

The reader 12 'and the interface 12 are owned and maintained by the electricity supplier. The consumer can pay a deposit to the landlord when he moves into the apartment. The deposit is refunded when the customer moves.

The card 23 must contain the following information: - Security codes with individual identification.

- Paid amount.

This information is transmitted to the computer 5 when the card 23 is inserted in the reader 12 'or in the unit 6. If the computer 5 approves the transmission within a section 45, the reader is given the go-ahead to make the memory space which stores the information of the paid amount unusable. This information must be readable later by a special control unit, within a section 46, in the event of a need for control. When the computer approves the transfer, a green LED lights up on the interface 12.

The computer 5 converts the input value into energy, where a part is set aside for the periodic fixed charge.

The consumer can get all the available information on his TV screen if he turns on a selected channel number, one that is set to the same transmission frequency as information from the computer 5.

Each information message is sent with the reader's 12 'code, via a section 47, which causes the interface 12 to open the information channel only if it recognizes the code. On the TV screen, the customer can see how many kWh he has left to consume before recharging the reader.

Average daily consumption and information on increasing or decreasing consumption in relation to the previous period are, within a section 48, also available. Instantaneous consumption, last-hour consumption, and a recommendation when a new card should be purchased can be found on the screen, via a section 49.

In addition, there will also be announcements and tips on energy saving measures, etc., via a section SO. This information can be supplemented with much other information, which relates to the energy sector. The municipality can, for example, send certain information via the same channel.

In each apartment building it is proposed that there should be a computer 5.

The computer must be adapted to the purposes required by the system. The computer 5 must be placed in a safe place, close to the electricity meters. The computer must be connected to resp. electricity meters via digital inputs and outputs.

Consumption pulses from the meter are transferred to the computer via digital inputs. The computer must contain information about the meter type and number, within the memory 3b. After each meter change, this information must be changed. The traditional meter with its integration work remains. This allows for double control of the amount of energy delivered.

When the computer 5 detects that the customer is close to the final consumption with its paid amount of energy, a message will be sent to the customer, using a section 51. If no new payment is made, the computer will interrupt the electricity supply, by via the digital output, and a section 52, affect a switch or contactor 2d, which is mounted on the phase cable 2a, Zc. Customers who do not have access to TV appa- ff W i5os »s42 _21 .. l.

I 'I' -. can see on a red LED, which is mounted on the interface 12, that a new card must be obtained.

The design of the programs that calculate the tariff is done individually from each electricity supplier.

The information program can also be designed individually.

The computer 5 is also connected to the telephone network 8 (or the cable network 2 and adapted equipment of a known type and not shown), via a modem equipment 7. The electricity supplier can call the computer 5 and change certain parameters and obtain information about the consumables. Some control of reasonableness in electricity consumption is performed by the program, which forwards prepared material to the electricity supplier. The telecommunications communication program is secure and prevents unauthorized access to the system. There is also an alarm system that warns if an unauthorized person tries to communicate with the system. If the computer 5 stops working, the system will work the old way. As soon as the computer works again, the necessary information will be obtained. The computer will be down in the event of a power failure.

The calculation unit 30 should further be provided with a section 53, where extracted energy from a certain time is stored and a section 54 where residual energy is stored, as well as a section 55 indicating the end date at a normal consumption.

A section 56 is adapted to be able to give certain consumers credit.

A section 58 is intended to generate an optical warning and / or send a letter when a predetermined time remains at a normal consumption.

The invention is of course not limited to the embodiment given above as an example, but may undergo modifications within the scope of the inventive concept illustrated in the following claims.

Claims (9)

ë fl f '"542 _ 23 _ BBIEHIKBBY Energy distribution system, with one or more energy suppliers and a plurality of energy consumers (3-3d), where each energy consumer (3) is assigned an energy measuring equipment (Zb), with the instantaneous value of each energy measuring equipment of each system readable by a computer unit ( 5) and which computer unit cooperates with an energy consumer-related cable intended for television receivers (10), characterized in that a number of energy consumers (3-3d) are coordinated into a TV cable (10), that each consumer (3) is provided with its own terminal (11) which can be connected to the computer unit via the TV cable (10), so that each consumer (3) can, via the terminal and with a terminal-related and issued code, activate the computer unit ( 5) to show to the consumer belonging to the television receiver or equivalent consumer-related and current energy consumption during a selected period of time or similar, that each energy consumer (3-3d) is assigned a code different from others and that the computer unit n (5) is connected to the TV cable via an interface (9). 2. A system according to claim 1, characterized in that each consumer (3) has paid an amount via a pre-purchase system, corresponding to e.g. a certain power consumption and / or a certain energy consumption, and that said television receiver (13) is arranged to show via the computer unit a current unused share of the amount paid. System according to claim 1, characterized in that each energy measuring equipment (2b) is provided with a contactor, connected in a current supply circuit, which at a predetermined amount of energy consumed is influenced by the computer unit (5) to interrupt the current supply. to the consumer. 505 s4ifi2ii "i _ 24 _ System according to claim 1 or 3, characterized in that all system-related consumers are connected to one and the same computer unit (5), which is connected to, each of the said consumers assigned, energy measuring equipment. 5. A system according to claim 2, characterized in that, respectively, of consumers, p.g.a. the pre-purchase, the amount of energy outstanding is determinable and readable and that in the case of a predetermined remaining amount of energy, an end time for consumption is calculated and this end time notifies the supplier resp. consumer. 6. A system according to claim 1, characterized in that said terminal (II) is arranged in a space belonging to the consumer, such as an apartment. System according to claim 1, characterized in that all system-related terminals (II) are connected to the computer unit (5) via a TV program-related coaxial conductor. 8. A system according to claim 2, characterized in that different amounts of energy are recordable during different time periods. 9. A system according to claim 1 or 8, characterized in that different electricity suppliers can be selected in a flexible manner during different time periods.