JP5416576B2 - Electricity rate selection system - Google Patents

Description

  The present invention relates to an electricity charge system selection system for selecting a plurality of types of electricity charge systems that a customer can contract with an electric power company.

  Currently, there are multiple types of electricity rate systems (electricity rate plans) that customers can contract with an electric power company. For example, in the case of a power company, in addition to the three basic plans of “metered lamp A”, “metered lamp B”, and “low piezoelectric lamp”, there are optional plans such as “lamp by hour” and “midnight power”. It is selectable.

  In addition, in the patent document 1, in view of future power liberalization, when a customer selects and contracts freely from a plurality of electric power companies, the customer's own consumption conditions are satisfied and the cost is low and optimal. A power company selection support system that supports selection of a power company has been proposed.

JP 2000-78747 A

  Traditionally, a change in the electricity rate structure that a customer has contracted with an electric power company usually requires written procedures, and it takes a considerable number of days (for example, several weeks) to actually change the electricity rate structure. ).

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electricity rate system selection system capable of changing the electricity rate system with which a customer contracts with an electric power company more easily and earlier than before. It is in.

  In order to achieve the above object, the invention of claim 1 is an electricity rate system selection system for selecting a plurality of types of electricity rate systems that a consumer can contract with an electric power company. An operation input receiving unit that has a customer terminal device and a selection device installed at the base, and that receives an operation input for selecting any one type of electricity rate system from among a plurality of types of electricity rate systems A power measurement unit that measures the power supplied to the load device via the power wiring, and an electricity rate system selection information indicating the one type of electricity rate system selected by the operation input received by the operation input reception unit, and An information transmission unit that transmits power information indicating a power measurement value measured by the power measurement unit to the consumer terminal device, and the consumer terminal device is arranged in parallel with the electricity bill system selection information transmitted from the information transmission unit of the selection device. An information transmission unit that receives power information, an electricity rate system selection information received by the information transmission unit and an electricity rate calculation unit that calculates an electricity rate based on the power information, an electricity rate calculated by the electricity rate calculation unit, And a data communication unit for transmitting customer information including the electricity rate system selection information and customer identification information to an electric power company.

  According to the first aspect of the present invention, it is possible to change the electricity charge system simply by causing the operation input receiving unit provided in the selection device to accept an operation input for selecting the electricity charge system. As a result, it is possible to change the electricity rate system with which the customer contracts with the power company more easily and earlier than before. In addition, the power measurement unit of the selection device measures the amount of power supplied to the load device, and the electricity charge calculation unit of the customer terminal device is based on the measured value of the power amount and the electricity charge system selected by the selection device. In order to calculate the electricity charge, it is possible to select an electricity charge system that applies only to a specific load device.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the information transmission unit of the selection device transmits the electricity rate system selection information and the power information by a transmission signal using the power wiring as a transmission medium.

  According to the invention of claim 2, since it is not necessary to wire a line dedicated to information transmission between the selection device and the customer terminal device, the wiring is saved.

  The invention of claim 3 is characterized in that, in the invention of claim 1, the information transmission unit of the selection device transmits the electricity bill system selection information and the power information by a transmission signal using radio waves as a transmission medium.

  According to the invention of claim 3, since it is not necessary to wire a dedicated line for information transmission between the selection device and the customer terminal device, the wiring is saved.

  The invention of claim 4 is characterized in that, in the invention of claim 1, the information transmission unit of the selection device transmits the electricity rate system selection information and the power information by a transmission signal using infrared as a transmission medium.

  According to the invention of claim 4, since it is not necessary to wire a line dedicated to information transmission between the selection device and the customer terminal device, the wiring is saved.

  According to a fifth aspect of the present invention, in the second aspect of the invention, a power conversion device that converts AC power supplied from an electric power company into DC power and distributes the power is installed at a customer's site, and the selection device and the customer terminal device The information transmission unit transmits the transmission signal superimposed on a DC voltage applied to the power wiring.

  According to invention of Claim 5, it can respond also to DC distribution.

  The invention of claim 6 is the invention of claim 3 or 4, wherein a transmission signal transmitted from the information transmission unit of the selection device using radio waves or infrared rays as a transmission medium is received, and the information contained in the transmission signal is transmitted through the power wiring. It has the relay apparatus which relays to a consumer terminal device as a medium, It is characterized by the above-mentioned.

  According to the invention of claim 6, even in an environment where direct communication from the selection device to the customer terminal device is not possible, the relay device capable of wireless communication with the selection device performs wired communication with the customer terminal device and relays the transmission signal. Therefore, it is possible to extend the distance at which information can be transmitted between the selection device and the customer terminal device.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the selection device includes a plug receiver to which an insertion plug of a load device is inserted and removed, and a connection portion for connecting the plug receiver to the power wiring. A plug housing, a connecting portion, an operation input receiving portion, an information transmission portion, and a difference between the plug receptacle, the connecting portion, the operation input receiving portion, and the information transmission portion, which are provided outside the case and are plugged into the outlet installed at the customer's place. It is provided with a plug.

  According to invention of Claim 7, a selection apparatus is realizable as a tap-type plug connector.

  The invention according to claim 8 is the invention according to any one of claims 1 to 6, wherein the selection device includes a plug receiver to which an insertion plug of a load device is inserted and removed, and a connection portion for connecting the plug receiver to the power wiring. And a receptacle that houses the plug receptacle, the connection portion, the operation input acceptance portion, and the information transmission portion, and that is embedded in an embedding hole provided on the wall surface.

  According to the invention of claim 8, the selection device can be realized as an outlet-type plug-in connector.

  The invention according to claim 9 is the distribution board box according to any one of claims 1 to 6, wherein the selection device houses the operation input reception unit and the information transmission unit, and is installed in the box of the consumer. The housing is provided with a housing.

  According to invention of Claim 9, a selection apparatus is realizable as an internal unit of a distribution board.

  According to the present invention, there is an effect that it is possible to change an electricity rate system with which a customer contracts with an electric power company more easily and earlier than before.

1 is a system configuration diagram showing Embodiment 1 of the present invention. The selection apparatus in the same as above is shown, (a) is a block diagram, (b) is an external perspective view. It is a block diagram of the consumer terminal device same as the above. It is a sequence diagram for operation | movement description same as the above. The other form of the selection apparatus same as the above is shown, (a) is a front view, (b) is a side view. It is a block diagram of the relay apparatus same as the above. The distribution board which accommodated the selection apparatus in Embodiment 2 of this invention is shown, (a) is the partially broken front view, (b) is a side view. It is a block diagram of the selection apparatus same as the above.

(Embodiment 1)
As shown in FIG. 1, the electricity charge system selection system of the present embodiment includes a management server device 1 for an electric power company to manage the electricity charge of each consumer, and a source of the consumer (in the illustrated example, a house H). It has the customer terminal device 2 and the selection device 3 to be installed. Here, as a plurality of types of electricity rate systems (electricity rate plans) that can be selected, “usage lamp A”, “usage lamp B”, “low piezoelectric lamp”, “hourly lamp”, “ In addition to “Midnight Power”, there are electricity billing systems for all-electric homes, and electricity billing systems under separate power sales contracts. However, the electricity charge system included in the options is not limited to the above, and another type of electricity can be selected depending on the electric power company.

  In the house H, the power line (power line) Lp is drawn from the power system of the power company to the distribution board (residential distribution board) 4 and branches into a plurality of indoor wirings (power wirings) Lx in the distribution board 4. Has been. Each power line Lx is connected to an outlet 5 embedded in the wall of the house H.

  The load device 6 is an electric appliance for home use such as an air conditioner, a washing machine, an electromagnetic cooker, and the plug (power plug) 61 attached to the tip of the power cord 60 is plugged into the outlet 5 or the like. As a result, power is supplied from the power line Lx.

  As shown in FIG. 3, the customer terminal device 2 detects a current flowing through the power line Lp and a voltage applied to the power line Lp, and measures a power amount (integrated power amount) supplied to the consumer. 23, an information transmission unit 21 that performs data transmission (power line carrier communication <PLC>) with the selection device 3 using the power line Lp as a transmission medium, as will be described later, and a terminal control unit 20 having a CPU as a main component, The data communication unit 22 that performs data communication with the management server device 1 via the wide area network WAN, and an electrically rewritable nonvolatile semiconductor memory, includes customer identification information (customer number) and contract. And a memory unit 24 for storing contents (electricity charge system). In other words, the customer terminal device 2 corresponds to a watt-hour meter (integrated watt-hour meter) installed under the customer who has contracted with the power company, and the customer terminal device 2 is connected to the consumer according to the amount of power measured by the power measuring unit 23. The terminal controller 20 calculates the charged electricity bill, and transmits the calculated electricity bill information to the management server device 1 from the data communication section 22 together with the consumer identification information. In the present embodiment, the terminal control unit 20 corresponds to an electricity bill calculation unit. Then, the management server device 1 acquires and manages information on the electricity bill for each customer from the information received from the customer terminal device 2. The wide area network WAN used for data communication by the data communication unit 22 is a network managed by the Internet or a power company.

  As shown in FIG. 2, the selection device 3 includes a plug receptacle 30, an insertion plug 31, an operation input acceptance unit 32, a control unit 33, an information transmission unit 34, a power measurement unit 35, a current sensor 36, a power supply unit 37, and a case 38. It has. As shown in FIG. 2 (b), the case 38 is formed of a rectangular parallelepiped synthetic resin molded body, a pair of insertion openings 38a, 38a are opened on one of the side surfaces facing in the longitudinal direction, and the power cable 38b is connected to the other side surface. Has been derived. One end of the power cable 38b is electrically connected to the plug receptacle 30 in the case 38, and the plug 31 is provided at the other end. A current sensor 36 is provided in the electric path between the plug receiver 30 and the power cable 38b, and the power measuring unit 35 is supplied to the load device 6 based on the current detected by the current sensor 36 and the voltage detected from the electric path. The amount of electric power (integrated electric energy) is measured. Note that the measured value of the electric energy measured by the power measuring unit 35 is converted into a digital signal (measured value data) and is taken into the control unit 33.

  The operation input receiving unit 32 has a plurality of push button switches SW1, SW2,. A plurality of (six in the illustrated example) operations for individually pressing these pushbutton switches SW1, SW2,..., SWn are provided on one surface (the upper surface in FIG. 2B) along the longitudinal direction of the case 38. The buttons 32a are arranged side by side so as to be movable up and down. That is, when any one of the operation buttons 32a is pressed, any one push button switch (for example, SW1) corresponding to the operation button 32a is turned on, and an operation input corresponding to the turned on push button switch SW1 is accepted. Then, the operation input receiving unit 32 outputs an operation signal indicating the pushed pushbutton switches SW1, SW2,..., SWn to the control unit 33. Here, the control unit 33 stores a correspondence relationship between a plurality of pushbutton switches SW1, SW2,..., SWn and a plurality of selectable electricity billing systems. For example, when an operation signal indicating that the pushbutton switch SW4 is turned on is input to the control unit 33, the power charge system associated with the pushbutton switch SW4 (for example, the power charge system of “light by time zone”) ) Is selected.

  The information transmission unit 34 performs data transmission (power line carrier communication <PLC>) using the power line Lp as a transmission medium with the information transmission unit 21 of the customer terminal device 2. In the information transmission unit 34, a transmission signal including measurement value data measured by the power measurement unit 35 and selection information (electricity rate system selection data) of the electricity rate system corresponding to the operation input received by the operation input reception unit 32 is transmitted to the power line Lp. It transmits to the customer terminal device 2 via. The information transmission unit 34 superimposes and transmits a high-frequency transmission signal on the AC voltage of the power line Lx by a superimposing circuit 34a including a transformer T and low-frequency blocking capacitors C and C.

  The power supply unit 37 converts AC power supplied through the plug 31 connected to the outlet 5 and the power cable 38 b into DC power and supplies the power to the units 32 to 35.

  Next, the operation of this embodiment will be described with reference to the sequence diagram of FIG. First, the management server device 1 notifies the customer terminal device 2 of initial setting information (current customer contract content <electricity billing system>) by data communication. In the customer terminal device 2, when the data communication unit 22 receives the information, the terminal control unit 20 stores information for initial setting (electricity billing system) in the memory unit 24. Thereafter, the terminal control unit 20 of the customer terminal device 2 calculates an electricity bill every 30 minutes based on the integrated power amount measured by the power measuring unit 23 and the electricity bill system stored in the memory unit 24. The calculated electricity bill information (electricity bill data) is transmitted from the data communication unit 22 to the management server device 1. The management server device 1 acquires and manages information on electricity charges for each customer from the information received from the customer terminal device 2.

  When the plug 31 of the selection device 3 is plugged into the outlet 5, the power supply unit 37 starts supplying power and the control unit 33 is activated. The activated control unit 33 first causes the information transmission unit 34 to transmit a transmission signal including a participation request message to the customer terminal device 2. In the customer terminal device 2, when the information transmission unit 21 receives the transmission signal, the terminal control unit 20 causes the information transmission unit 21 to transmit a transmission signal including a participation permission message to the selection device 3. In the selection device 3, when the information transmission unit 34 receives the transmission signal and the control unit 33 receives a message indicating permission to participate, a power rate system selection process is executed.

  Here, the load device 6 supplied with power via the selection device 3 is used (operated) in a specific time zone such as an air conditioner or a television receiver installed in the living room (living room) of the house H. It is assumed that the electric device is of a type that concentrates on a time zone (a time zone in which the family gathers in the living room, such as weekday morning and evening, nighttime, and holiday daytime). Further, it is assumed that there is an electricity charge system in which the electricity charge for the specific time period is set as a discounted electricity charge system, and the operation button 32a corresponding to the electricity charge system is pressed. The control unit 33 determines that the electricity rate system has been selected based on the operation signal output from the operation input accepting unit 32, and uses the information on the selected electricity rate system (electricity rate system selection data) as the power measurement unit 35. It transmits to the consumer terminal device 2 by a transmission signal with the information (measurement value data) of the electric power measurement value measured by (1).

  In the customer terminal device 2, the information transmission unit 21 receives a transmission signal including the electricity rate system selection data from the selection device 3, and the terminal control unit 20 receives the electricity rate system selection data and the measured value data. The terminal control unit 20 converts a part of the contract stored in the memory unit 24, that is, an electricity rate system applied to a specific load device 6 to which power is supplied via the selection device 3, into the electricity rate system selection data. Is changed to the electricity billing system shown in FIG. Thereafter, the terminal control unit 20 applies an initial electricity billing system to the difference between the amount of power measured by its own power measurement unit 23 and the amount of power notified from the selection device 3. Electricity charges are calculated individually by applying the changed electricity charge system to the notified power amount. Further, the terminal control unit 20 causes the data communication unit 22 to transmit the calculated electricity bill information (electricity bill data) to the management server device 1.

  As described above, according to the present embodiment, it is possible to change the electricity billing system simply by causing the operation input receiving unit 32 included in the selection device 3 to accept an operation input for selecting the electricity billing system. As a result, it is possible to change the electricity rate system with which the customer contracts with the power company more easily and earlier than before. In addition, the power measuring unit 35 of the selection device 3 measures the amount of power supplied to the load device 6, and based on the measured value of the power amount and the electricity rate system selected by the selection device 3, Since the electricity rate calculation unit (terminal control unit 20) calculates the electricity rate, it is possible to select an electricity rate system that is applied only to a specific load device (the load device 6 fed through the selection device 3). .

  Moreover, in this embodiment, since the information transmission part 34 of the selection apparatus 3 and the information transmission part 21 of the consumer terminal device 2 are performing information transmission by the transmission signal which uses the power wiring Lx as a transmission medium, the selection apparatus 3 and demand Since there is no need to wire a dedicated line for information transmission between the home terminal device 2, there is an advantage that wiring can be saved. Note that information transmission may be performed using a transmission signal using radio waves as a transmission medium or a transmission signal using infrared rays as a transmission medium instead of a transmission signal using the power wiring Lx as a transmission medium.

  In this embodiment, the selection device 3 is realized as a tap-type plug connector (so-called table tap). However, as shown in FIG. It can also be realized as a built-in outlet). The selection device 3 shown in FIG. 5 is a synthetic resin that houses a plug receptacle 30, an insertion plug 31, an operation input acceptance unit 32, a control unit 33, an information transmission unit 34, a power measurement unit 35, a current sensor 36, and a power supply unit 37. A container 300, a mounting frame (not shown) for fixing the container 300 to an embedding box (not shown), and a combined outlet plate 301 attached to the front surface of the mounting frame. ing. A pair of insertion ports 300a, 300a are opened at the lower front of the body 300, and a plurality of (six in the illustrated example) operation buttons 32a are arranged side by side vertically. However, since the operation of each unit is the same as that of the selection device 3 including a tap-type plug connector, the description thereof is omitted.

  By the way, when the information transmission unit 34 of the selection device 3 performs wireless transmission using radio waves or infrared rays as a transmission medium, information transmission is performed depending on the environmental conditions such as the distance between the selection device 3 and the customer terminal device 2 and the presence or absence of obstacles. There is a possibility of not being able to. Therefore, a relay signal is received that is transmitted from the information transmission unit 34 of the selection device 3 using radio waves or infrared rays as a transmission medium, and information included in the transmission signal is relayed to the customer terminal device 2 using the power wiring Lx as a transmission medium. A device 7 may be provided. As shown in FIG. 6, the relay device 7 includes a radio communication unit 70 that performs radio transmission (wireless communication) with the selection device 3 using radio waves or infrared rays as a transmission medium, and a signal processing unit that performs signal processing of transmission signals. 71, a wired communication unit 72 that performs wired transmission (power line carrier communication) using the power wiring Lx as a transmission medium between the customer terminal device 2, a power supply unit 73 that supplies operation power to each unit 70 to 72, An insertion plug 74 to be inserted into the outlet 5 is provided.

  Then, if the relay device 7 is installed by inserting the plug 74 into the outlet 5 that is installed at a position where the distance to the selection device 3 is short and there is no obstacle, a transmission signal wirelessly transmitted from the selection device 3 Is received by the wireless communication unit 70 of the relay device 7, and the signal processing unit 71 converts the transmission signal into a transmission signal for wired transmission and transmits it from the wired communication unit 72 to the customer terminal device 2 via the power wiring Lx. (Relay) can be. Thereby, the distance which can transmit information between the selection apparatus 3 and the customer terminal device 2 can be extended.

(Embodiment 2)
The present embodiment is characterized in the configuration of the selection device 8, and the management server device 1, the customer terminal device 2, and the like other than the selection device 8 are common to the first embodiment. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The selection device 8 in this embodiment is housed in a box 40 of a distribution board (residential distribution board) 4 as shown in FIG. A main breaker and a plurality of branch breakers (not shown) are accommodated in the box 40, and the selection device 8 is accommodated in a limiter space (a space on the right side when viewed from the front) in the box 40. The front surface of the box 40 is covered with a door 41 so as to be freely opened and closed.

  As illustrated in FIG. 8, the selection device 8 includes a control unit 80 having a CPU as a main component, an operation input reception unit 81, a display unit 82, a power measurement unit 83, an information transmission unit 84, and a power supply unit 85. These parts 80 to 85 are housed in a synthetic resin housing 86 (see FIG. 7A). On the front surface of the housing 86, operation buttons 81a, 81b, 81c, 81d, 81e for pressing a push button switch (not shown) of the operation input receiving unit 81, and a display device (for example, 7) Segment liquid crystal displays) 82a and 82b are exposed.

  The display unit 82 displays the branch circuit identification number on one display device 82a, and displays the number (plan number) for identifying the electricity rate system on the other display device 82b. Operation buttons 81a and 81b are juxtaposed in the vertical direction below the display device 82a on the front surface of the housing 86, operation buttons 81c and 81d are juxtaposed in the vertical direction below the display device 82b, and an operation button 81e is provided at the bottom. It is arranged. When the control unit 80 receives an operation signal from the operation input receiving unit 81 by pressing the operation button 81a, the control unit 80 causes the display unit 82 to advance the identification number of the branch circuit displayed on the display device 82a by one, so that the operation button 81b When the operation signal by the push operation is received from the operation input reception unit 81, the identification number of the branch circuit displayed on the display device 82a is returned to the display unit 82 by one. Similarly, when the control unit 80 receives an operation signal from the operation input accepting unit 81 by pressing the operation button 81c, the control unit 80 causes the display unit 82 to advance the plan number of the electricity fee system displayed on the display device 82b by one, When an operation signal generated by pressing the operation button 81d is received from the operation input receiving unit 81, the display unit 82 is caused to return one plan number of the electricity bill system displayed on the display device 82b. Then, when the control unit 80 receives an operation signal from the operation input receiving unit 81 by pressing the operation button 81e, the control unit 80 also applies to the branch circuit identification number displayed on the display device 82a at that time. It is determined that the electricity rate system of the plan number displayed on the display device 82b has been selected.

  On the other hand, the power measuring unit 83 individually measures the amount of power for each of a plurality of branch circuits branched via the branch breaker. And the control part 80 acquires the measured value data of the electric energy of the branch circuit corresponding to the electricity bill system selected as mentioned above from the power measurement part 83, and acquired measurement value data and the electricity bill system selection data Is transmitted from the information transmission unit 84 to the customer terminal device 2 through the power line Lp. Since the operation of the customer terminal device 2 that has received the transmission signal is the same as that of the first embodiment, the description thereof is omitted.

  As described above, according to the present embodiment, the selection device 8 can be realized as an internal unit of the distribution board 4, and the selection device 8 can be accommodated in an empty space (limiter space) of the distribution board 4 to save space. There is an advantage.

  In the first and second embodiments described above, the AC power supplied from the power company is directly distributed through the power wiring Lx. However, the AC power supplied from the power company is converted into direct current by the power converter (AC / DC converter). You may make it convert into electric power and distribute electricity. In this case, the information transmission units 34 and 21 of the selection device 3 and the customer terminal device 2 transmit the transmission signal superimposed on the DC voltage applied to the power line Lx.

DESCRIPTION OF SYMBOLS 1 Management server apparatus 2 Customer terminal device 3 Selection apparatus Lp Power line Lx Power wiring

Claims (9)

An electricity tariff system selection system for a customer to select multiple types of electric tariff systems that can be contracted with an electric power company,
Having a customer terminal device and a selection device installed under the customer,
The selection device measures the power supplied to the load device via the power input and the operation input receiving unit that receives an operation input for selecting any one type of electricity rate system from among a plurality of types of electricity rate systems A power measurement unit that performs power consumption selection, information on the electric charge system selected by the operation input received by the operation input reception unit, and power information that indicates a power measurement value measured by the power measurement unit. An information transmission unit for transmitting to the terminal device,
The customer terminal device receives the electricity rate system selection information and the power information transmitted from the information transmission unit of the selection device, and the electricity transmission system based on the electricity rate system selection information and the power information received by the information transmission unit. An electricity rate calculation unit that calculates a rate, and a data communication unit that transmits customer information including the electricity rate calculated by the electricity rate calculation unit, the electricity rate system selection information, and customer identification information to an electric power company. An electricity tariff system selection system characterized by that.   2. The system for selecting an electricity rate system according to claim 1, wherein the information transmission unit of the selection device transmits the electricity rate system selection information and the power information by a transmission signal using the power wiring as a transmission medium.   2. The system for selecting an electricity rate system according to claim 1, wherein the information transmission unit of the selection device transmits the electricity rate system selection information and the power information by a transmission signal using radio waves as a transmission medium.   2. The electric charge system selection system according to claim 1, wherein the information transmission unit of the selection device transmits the electric charge system selection information and the power information by a transmission signal using infrared as a transmission medium.   A power conversion device that converts AC power supplied from an electric power company into DC power and distributes it is installed at the customer's site, and the information transmission unit of the selection device and the customer terminal device applies the transmission signal to the power wiring. The system for selecting an electricity charge system according to claim 2, wherein the transmission is superimposed on a direct current voltage.   A relay device that receives a transmission signal transmitted from the information transmission unit of the selection device using radio waves or infrared rays as a transmission medium and relays information contained in the transmission signal to a consumer terminal device using a power wiring as a transmission medium; The electricity bill system selection system according to claim 3 or 4.   The selection device includes a plug receptacle for inserting / removing an insertion plug of the load device, a connection portion for connecting the plug receptacle to the power wiring, and a case for housing the plug receptacle, the connection portion, the operation input reception portion, and the information transmission portion. And an insertion plug that is provided outside the case and that is plugged in and connected to an outlet installed at a customer's location. 7. Electricity rate system selection system described in 1.   The selection device houses a plug receptacle in which an insertion plug of a load device is inserted and removed, a connection portion for connecting the plug receptacle to a power wiring, the plug receptacle, a connection portion, an operation input reception portion, an information transmission portion, The electricity bill system selection system according to any one of claims 1 to 6, further comprising a container body embedded in an embedded hole provided in a wall surface.   The selection device includes an operation input receiving unit and an information transmission unit, and includes a housing disposed in a box of a distribution board installed at a customer's place. The electricity bill system selection system according to any one of the above.

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