JP7100443B2 - housing complex - Google Patents

Description

This disclosure relates to a drop-in board and an apartment house.

It is known that power is supplied from a distributed power source including a renewable energy power generation facility such as a solar power generation device to a common area of an apartment house (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-37354

From the viewpoint of energy saving measures in houses, it is required that the power of distributed power sources including renewable energy power generation facilities be consumed in-house in apartment houses.

An object of the present disclosure is to provide a drop-in board and an apartment house in which the electric power of a distributed power source including a renewable energy power generation facility is easily consumed in-house.

The apartment house according to the embodiment of the present disclosure includes a drop board, a door-to -door load, a shared load, a distributed power source, and a door-to -door electric energy meter . The service board collectively receives power from the power grid in order to supply power to the door-to-door load and the shared load based on a collective power receiving contract that receives power less than a predetermined value. The service board includes a first watt-hour meter, a second watt-hour meter , a third watt-hour meter, an acquisition unit, and a communication unit . The first watt-hour meter is connectable to the power grid and measures the amount of power collectively received from the power grid in order to supply power to the door-to -door load and the shared load provided in the housing complex. The second watt-hour meter can be connected to the shared load and is connected to the first watt-hour meter. The third watt-hour meter is connected between at least a part of the wiring to which the first watt-hour meter and the second watt-hour meter are connected and the distributed power supply, and is the distributed type. Measure the amount of power output by the power supply. The acquisition unit acquires measurement results from at least one of the first watt-hour meter, the second watt-hour meter, and the third watt-hour meter. The communication unit can transmit the measurement result to the server. The second watt-hour meter measures the electric energy including the electric energy supplied from the distributed power source to the shared load and the electric energy supplied from the electric power network to the shared load. The door-to-door watt-hour meter is located outside the service board and is connected between at least a part of the wiring to which the first watt-hour meter and the second watt-hour meter are connected and the door-to-door load. The amount of electric power supplied to the door-to-door load is measured .

According to the service board and the apartment house according to the embodiment of the present disclosure, the electric power of the distributed power source including the renewable energy power generation facility is easily consumed by the apartment house.

It is a block diagram which shows the schematic structure example of the apartment house and the drop-in board which concerns on one Embodiment. It is a block diagram which shows the schematic structure example of the apartment house and the drop-in board which concerns on one Embodiment. It is a block diagram which shows the schematic structure example of the pull-in board which concerns on a comparative example. It is (A) front view and (B) side view which shows the structural example of an apartment house. (A) is a plan view showing a configuration example in a state where the door of the retractable board is closed, and (B) is a plan view showing a configuration example in a state where the door of the retractable board is open.

Net Zero Energy House has been proposed as an energy saving measure for housing. The net zero energy house is also called ZEH (net Zero Energy House). The house may be equipped with renewable energy power generation equipment such as solar power generation or wind power generation. A house can be recognized as ZEH by self-consuming the power output by the renewable energy power generation facility with a load 40 (see FIG. 1) provided in the house. By increasing the power consumed in-house in ZEH, the power received from the power grid 50 (see FIG. 1) can be reduced.

In recent years, the number of detached houses constructed as ZEH is increasing. On the other hand, an apartment house 1 (see FIG. 1) such as a condominium or an apartment may be constructed as ZEH. The apartment house 1 may be equipped with a renewable energy power generation facility. The apartment house 1 can be recognized as ZEH because some of the electric power output from the renewable energy power generation facility is self-consumed. In the apartment house 1, the electric power output from the renewable energy power generation facility is consumed not only by the shared load 42 (see FIG. 1) provided in the common area but also by the individual load 41 (see FIG. 1) provided in each house. By doing so, the amount of electricity consumed in-house can be increased. That is, it is required that the electric power output from the renewable energy power generation facility is consumed by the door-to-door load 41.

As shown in FIG. 1, the apartment house 1 according to the embodiment includes a lead-in board 10, a door-to-door load 41, a shared load 42, and a distributed power source 60. The service board 10 is connected to the power grid 50 and can receive power from the power grid 50. The drop board 10 is connected to the distributed power source 60 and can receive the power output from the distributed power source 60. The lead-in board 10 is connected to the door-to-door load 41 and the shared load 42, and can supply electric power to the door-to-door load 41 and the shared load 42. When the power output from the distributed power source 60 exceeds the power consumption of the door-to-door load 41 and the shared load 42, the service board 10 may sell the surplus power to the power grid 50.

The distributed power source 60 may include a photovoltaic power generation facility 61. The photovoltaic power generation facility 61 is also referred to as PV61 (PhotoVoltaics). The distributed power source 60 may include a renewable energy power generation facility such as a solar power generation facility 61 or a wind power generation facility. The renewable energy power generation facility is not limited to the solar power generation facility 61 or the wind power generation facility, and may include other facilities. The distributed power source 60 may include a storage battery 62. The distributed power source 60 may include a power conditioner that controls the power output from the renewable energy power generation facility or the storage battery 62.

The door-to-door load 41 is a power load provided in each house of the apartment house 1. The door-to-door load 41 may be, for example, an electric device such as a lighting fixture, a refrigerator, a television, or an air conditioner used in each house. The shared load 42 is a power load provided in the common portion of the apartment house 1. The common area may be, for example, a corridor or stairs of an apartment house 1. The shared load 42 may include, for example, a lighting fixture such as an outdoor light provided in the common portion. The shared load 42 may include a septic tank blower power supply provided in the common portion. The shared load 42 may include emergency equipment such as a fire alarm. The shared load 42 is not limited to these, and may include other equipment such as air conditioning equipment. The door-to-door load 41 and the shared load 42 are collectively referred to as a load 40. The number of the door-to-door loads 41 shown in FIG. 1 is two, but may be three or more. The number of shared loads 42 shown in FIG. 1 is one, but may be two or more.

In the present embodiment, it is assumed that the management entity of the apartment house 1 has a collective power receiving contract with an electric power company that supplies electric power to the electric power network 50. When a collective power receiving contract is concluded, the service board 10 collectively receives power from the power grid 50 and supplies power to each load 40. The electric power company may charge the management entity of the apartment house 1 an electricity charge based on the amount of electric energy collectively received from the power network 50 by the apartment house 1. The management entity of the apartment house 1 may charge the resident of each house an electricity charge based on the amount of electric power received by each house. When a collective power receiving contract is concluded, the power consumption of each load 40 of the apartment house 1 can be added up to equalize the power consumption of the apartment house 1 as a whole. That is, the peak cut of the power consumption can be realized in the entire apartment building 1. By realizing the peak cut of power consumption, the electricity charge can be reduced. For example, the basic charge or unit price of electricity charges can be reduced.

When the management entity of the apartment house 1 concludes a collective power receiving contract, either a high-voltage collective power receiving contract or a low-voltage collective power receiving contract is selected. The high-voltage batch power reception contract is a contract to receive power collectively with an electric capacity equal to or higher than a predetermined value. The low-voltage batch power reception contract is a contract to receive power collectively with an electric capacity less than a predetermined value. The predetermined value is appropriately set by the electric power company. The predetermined value may be, for example, 50 kW or the like. The management entity of the apartment house 1 may conclude either a high-voltage collective power receiving contract or a low-voltage collective power receiving contract based on the number of units of the apartment house 1.

If a high-voltage batch power reception contract is signed, it may be necessary to install high-voltage power receiving equipment such as cubicles, or to appoint a security manager such as a chief electrical engineer, but the unit price of electricity will be high. Can be reduced. When the number of units in the apartment house 1 is small, the power demand of the apartment house 1 as a whole may be less than a predetermined value. If the power demand of the apartment house 1 as a whole remains below a predetermined value, the management entity of the apartment house 1 may conclude a low-voltage collective power receiving contract. If a low-voltage batch power reception contract is signed, it is not necessary to install high-voltage power receiving equipment and appoint a security manager such as a chief electrical engineer. That is, the cost burden for installing the high-voltage power receiving equipment and appointing the security manager is avoided. When a low-voltage collective power receiving contract is concluded, the management entity of the apartment house 1 cannot enjoy the merits such as reduction of the unit price of the electricity charge associated with the high-voltage collective power receiving contract. On the other hand, regardless of whether the high-voltage collective power receiving contract or the low-voltage collective power receiving contract is concluded, the peak cut of the power consumption can be realized by leveling the power consumption of the entire apartment house 1. Therefore, even when a low-voltage collective power receiving contract is concluded instead of a high-voltage collective power receiving contract, the management entity of the apartment house 1 can enjoy the merit of reducing the unit price of electricity charges by cutting the peak power consumption.

The lead-in board 10 includes a first watt-hour meter 21. The first watt hour meter 21 is connected to the power grid 50. The first watt-hour meter 21 has a configuration that can be connected to the power grid 50 in a state where the service board 10 is not installed in the apartment house 1. The lead-in board 10 may include a first breaker 31. The first breaker 31 may be connected in series with the first watt hour meter 21. The first watt-hour meter 21 measures the amount of electric power collectively received from the power grid 50 by the service board 10. The first watt-hour meter 21 may measure the amount of power sold from the distributed power source 60 to the power grid 50 via the service board 10. The first electric energy meter 21 may be managed by an electric power company with which the management entity of the apartment house 1 has a collective power receiving contract. The first watt-hour meter 21 may be a watt-hour meter with a certification. The electric power company may charge the management entity of the apartment house 1 an electricity charge based on the measurement result of the first electric energy meter 21.

The lead-in board 10 includes a second watt-hour meter 22. The second watt hour meter 22 is connected to the shared load 42. The second watt-hour meter 22 has a configuration that can be connected to the shared load 42 in a state where the service board 10 is not installed in the apartment house 1. The drop board 10 may include a second breaker 32. The second breaker 32 may be connected in series with the second watt-hour meter 22. The second watt-hour meter 22 may measure the amount of power received by the shared load 42. The amount of electric power received by the shared load 42 may be the total amount of electric power received by the shared load 42 from the power grid 50 and the amount of electric power received by the shared load 42 from the distributed power source 60. The second watt-hour meter 22 may measure the amount of power received by the shared load 42 from the power grid 50 and the amount of power received by the shared load 42 from the distributed power source 60. The second electric energy meter 22 may be managed by the management entity of the apartment house 1. The second watt-hour meter 22 may be a watt-hour meter with a certification. Since the second watt-hour meter 22 is a watt-hour meter with a test, the amount of power received by the shared load 42 can be measured with a more reliable numerical value.

At least a part of the wiring connecting the first watt-hour meter 21 and the second watt-hour meter 22 is connected to the distributed power source 60. At least a part of the wiring connecting the first watt-hour meter 21 and the second watt-hour meter 22 can be connected to the distributed power source 60 in a state where the service board 10 is not installed in the apartment house 1. Has.

The lead-in board 10 may include a first terminal 11. The first terminal 11 may connect the first watt hour meter 21 and the power grid 50. The first terminal 11 can receive power from the power grid 50. The lead-in board 10 may include a second terminal 12. The second terminal 12 may connect the second watt-hour meter 22 and the shared load 42. The second terminal 12 can supply electric power to the shared load 42. The first terminal 11 and the second terminal 12 have a configuration that can be connected to the power grid 50 and the shared load 42, respectively, in a state where the service board 10 is not installed in the apartment house 1. The drop board 10 may include a branch node 18. The branch node 18 may be located at least a part of the wiring connecting the first watt-hour meter 21 and the second watt-hour meter 22. The branch node 18 may be connected to each of the first terminal 11 and the second terminal 12. The first terminal 11, the first electric energy meter 21, the first breaker 31, and the branch node 18 may be connected in series. The position to which the first watt-hour meter 21 is connected and the position to which the first breaker 31 is connected may be exchanged. The branch node 18, the second watt-hour meter 22, the second breaker 32, and the second terminal 12 may be connected in series. The position to which the second watt-hour meter 22 is connected and the position to which the second breaker 32 is connected may be exchanged.

The lead-in board 10 may include a third watt-hour meter 23. The third watt-hour meter 23 may be connected to the distributed power source 60. The third watt-hour meter 23 may have a configuration that can be connected to the distributed power source 60 in a state where the service board 10 is not installed in the apartment house 1. The lead-in board 10 may include a third terminal 13. The third terminal 13 may connect the third watt-hour meter 13 and the distributed power source 60. The third terminal 13 can receive electric power from the distributed power source 60. The lead-in board 10 may include a third breaker 33. The third breaker 33 may be connected in series with the third electricity meter 23. The third watt-hour meter 23 may measure the amount of power received by the service board 10 from the distributed power source 60. When the storage battery 62 of the distributed power source 60 stores electricity, the distributed power source 60 can receive power from the power grid 50. The third watt hour meter 23 may measure the amount of power received by the distributed power source 60 from the power grid 50. The third electric energy meter 23 may be managed by the management entity of the apartment house 1. The third watt-hour meter 23 may be a watt-hour meter with a certification or a watt-hour meter without a certification. The branch node 18, the third watt hour meter 23, the third breaker 33, and the third terminal 13 may be connected in series. The position to which the third watt-hour meter 23 is connected and the position to which the third breaker 33 is connected may be exchanged.

When the lead-in board 10 does not include the third electric energy meter 23, the lead-in board 10 draws in from the distributed power source 60 based on the measurement result of the first electric energy meter 21 and the measurement result of the second electric energy meter 22. The amount of power received by the board 10 may be calculated. The lead-in board 10 may not be able to acquire the measurement result of the first watt-hour meter 21. Since the lead-in board 10 is provided with the third electric energy meter 23, the lead-in board 10 receives power from the distributed power source 60 even when the lead-in board 10 cannot acquire the measurement result of the first electric energy meter 21. Electric energy can be measured.

When the service board 10 does not include the third electric energy meter 23, the service board 10 acquires data regarding the output of the distributed power source 60, and based on the data, the power received by the service board 10 from the distributed power source 60. The amount may be calculated. The data regarding the output of the distributed power source 60 may be, for example, the operation data of the power conditioner. When the service board 10 is provided with the third electric energy meter 23, the electric power amount received from the distributed power source 60 can be obtained more easily as compared with the case where the third electric energy meter 23 is not provided.

The lead-in board 10 may include a fourth terminal 14. The fourth terminal 14 may be connected to the branch node 18. The fourth terminal 14 may be connected to the load 41 for each house and the fourth electric energy meter 24 provided in each house of the apartment house 1. The fourth terminal 14 may have a configuration that can be connected to the door-to-door load 41 and the fourth watt-hour meter 24 in a state where the service board 10 is not installed in the apartment house 1. In a state where the service board 10 is installed in the apartment house 1, the door-to-door load 41, the fourth watt-hour meter 24, the fourth terminal 14, and the branch node 18 may be connected in series. The fourth watt-hour meter 24 may measure the amount of power received by the door-to-door load 41. The electric power received by the door-to-door load 41 may be the total electric energy of the electric power received by the door-to-door load 41 from the power grid 50 and the electric power received by the door-to-door load 41 from the distributed power source 60. The fourth electric energy meter 24 may measure the amount of electric power received by the household load 41 from the power grid 50 and the amount of electric power received by the household load 41 from the distributed power source 60. The fourth electric energy meter 24 may be managed by the management entity of the apartment house 1. The fourth watt-hour meter 24 may be a watt-hour meter with a certification. Since the fourth watt-hour meter 24 is a watt-hour meter with a certification, the amount of power received by the door-to-door load 41 can be measured with a more reliable numerical value. The management entity of the apartment house 1 may charge the resident of each house an electricity charge based on the measurement result of the fourth electricity meter 24. As a result, the management entity of the apartment house 1 can charge the resident of each house with a more reliable numerical value.

The service board 10 may include a router 70 capable of transmitting the measurement result of the watt hour meter to an external server 81 or the like. The router 70 may include an acquisition unit 71 and a communication unit 72. The acquisition unit 71 may be communicably connected to the second watt hour meter 22. The acquisition unit 71 may be communicably connected to the third watt hour meter 23. The acquisition unit 71 may be communicably connected to the fourth watt hour meter 24. The acquisition unit 71 may be further communicably connected to the first watt hour meter 21. The communication unit 72 may be communicably connected to the acquisition unit 71. The communication unit 72 may be communicably connected to the server 81. The communication unit 72 is not limited to the server 81, and may be communicably connected to another external device. The communication unit 72 may communicate with the server 81 or another external device or the like via a communication network 80 such as the Internet. The communication unit 72 may include an antenna 73 for transmitting and receiving radio waves for communication.

The acquisition unit 71, the communication unit 72, the first watt-hour meter 21, the second watt-hour meter 22, the third watt-hour meter 23, and the fourth watt-hour meter 24 each use a communication device that communicates with each of the other components. You may be prepared. The communication device may be, for example, a communication interface conforming to the RS485 standard, or may be a communication interface such as a LAN (Local Area Network). The communication device may be communicably connected to other components by wire or wirelessly.

The acquisition unit 71 may acquire the measurement result from the first electric energy meter 21, the second electric energy meter 22, the third electric energy meter 23, or the fourth electric energy meter 24. The communication unit 72 may acquire the measurement results of the first watt-hour meter 21, the second watt-hour meter 22, the third watt-hour meter 23, or the fourth watt-hour meter 24 from the acquisition unit 71. The communication unit 72 obtains the measurement results of the first watt-hour meter 21, the second watt-hour meter 22, the third watt-hour meter 23, or the fourth watt-hour meter 24, which is acquired by the acquisition unit 71, to the server 81 or another external device. It may be transmitted to a device or the like.

By transmitting the measurement result of the watt-hour meter to the server 81 or the like, an error in meter reading is less likely to occur and the cost for meter reading can be reduced as compared with the case where the meter is visually read.

As shown in FIG. 2, the lead-in board 10 according to the embodiment may include a fourth watt-hour meter 24, unlike the pull-in board 10 shown in FIG. The fourth electric energy meter 24 may be connected to the door-to-door load 41. The fourth watt-hour meter 24 may have a configuration that can be connected to the door-to-door load 41 in a state where the service board 10 is not installed in the apartment house 1. The pull-in board 10 may be provided with a fourth breaker 34, unlike the pull-in board 10 shown in FIG. The fourth breaker 34 may be connected in series with the fourth electricity meter 24. The branch node 18, the fourth watt-hour meter 24, the fourth breaker 34, and the fourth terminal 14 may be connected in series. The position to which the fourth watt-hour meter 24 is connected and the position to which the fourth breaker 34 is connected may be exchanged. By providing the lead-in board 10 with the fourth watt-hour meter 24, the installation space of the fourth watt-hour meter 24 can be reduced in each house of the apartment house 1.

The first watt-hour meter 21, the second watt-hour meter 22, the third watt-hour meter 23, and the fourth watt-hour meter 24 are collectively referred to as watt-hour meters. The first breaker 31, the second breaker 32, the third breaker 33, and the fourth breaker 34 are collectively referred to as a breaker.

Next, a comparative example for one embodiment will be described. In the first comparative example shown in FIG. 3, the apartment house 1 includes a drop board 90. In the first comparative example, the management entity of the apartment house 1 does not conclude a collective power receiving contract with the electric power company. Instead, the resident of each house in the apartment house 1 has a door-to-door power receiving contract with the electric power company. The door-to-door load 41 receives power from the power grid 50 door-to-door based on the door-to-door power receiving contract. The management entity of the apartment house 1 has a door-to-door power receiving contract with the electric power company for the shared load 42. The shared load 42 receives power from the power grid 50 separately from the door-to-door load 41 based on the door-to-door power receiving contract. The electric power company charges electricity charges to the residents of each house and the management entity of the apartment house 1.

The service board 90 includes a fifth terminal 91 connected to the power grid 50, a sixth terminal 92 connected to the door-to-door load 41, a seventh terminal 93 connected to the shared load 42, and a distributed power source 60. It is provided with an eighth terminal 94 connected to. The lead-in board 90 includes a first branch node 95 connected to the fifth terminal 91 and the sixth terminal 92. The lead-in board 90 includes a first branch node 95 and a second branch node 96 connected to the seventh terminal 93 and the eighth terminal 94. The service board 90 includes a fifth watt-hour meter 97 connected to the sixth terminal 92 and a sixth watt-hour meter 98 connected to the seventh terminal 93 and the eighth terminal 94. The fifth watt-hour meter 97 is managed by the electric power company and measures the amount of electric power received by the door-to-door load 41. The sixth watt-hour meter 98 is managed by the electric power company and measures the amount of electric power received by the shared load 42. The electric power output from the distributed power source 60 is supplied to the shared load 42. When the power output from the distributed power source 60 is larger than the power consumption of the shared load 42, the surplus power is reverse-flowed to the power grid 50 side. The sixth watt hour meter 98 measures the electric energy of the surplus electric power that is reversely flowed. The lead-in board 90 includes a fifth breaker 99. The fifth breaker 99 is located between the fifth terminal 91 and the first branch node 95, between the first branch node 95 and the sixth terminal 92, and between the second branch node 96 and the seventh terminal 93 and the eighth terminal. It is connected to 94.

In the first comparative example, the electric power output from the distributed power source 60 is directly supplied to the shared load 42. On the other hand, for the door-to-door load 41, the surplus power that is reverse power flowed to the side of the power grid 50 via the sixth watt-hour meter 98 is supplied via the fifth watt-hour meter 97. The surplus power that is reversely flowed to the side of the power grid 50 via the sixth watt-hour meter 98 may be regarded as the power supplied from the power grid 50 after being sold once. That is, of the electric power output from the distributed power source 60, the electric power consumed by the door-to-door load 41 may not be considered to be self-consumed in the apartment house 1.

On the other hand, in the present embodiment, the electric power output from the distributed power source 60 can be directly supplied to the door-to-door load 41 without going through the first watt-hour meter 21. By doing so, the electric power output from the distributed power source 60 can be considered to be self-consumed in the apartment house 1. As a result, the apartment house 1 is easily recognized as ZEH.

In the first comparative example, the shared load 42 directly receives the electric power output from the distributed power source 60. In this case, the electricity charge charged to the management entity of the housing complex 1 based on the power consumption of the shared load 42 is reduced by the power output from the distributed power source 60. In the first comparative example, the door-to-door load 41 does not directly receive the electric power output from the distributed power source 60. In this case, the electricity charge charged to the resident of each house based on the power consumption of the load 41 for each house is not reduced by the power output from the distributed power source 60. That is, the resident of each house may not enjoy the merit that the apartment house 1 is provided with the distributed power source 60.

On the other hand, in the present embodiment, the power consumed by each load 40 of the apartment house 1 as a whole and the power output from the distributed power source 60 are offset, so that the house 1 receives power collectively from the power grid 50. The amount of power can be reduced. In this case, the amount charged by the electric power company to the management entity of the apartment house 1 may be reduced. As a result, the electricity charges charged to the residents of each house can be reduced. That is, the resident of each house can enjoy the merit that the apartment house 1 is provided with the distributed power source 60. For example, the electric power output from the PV 61 as the distributed power source 60 can offset the electric power consumed by each load 40 of the apartment house 1 as a whole. That is, the electric power consumed by each load 40 can be covered by the electric power output by the PV61. The electric power output from the PV 61 can be large in the daytime when the unit price of the electric power received from the electric power grid 50 is high. That is, the amount of electric power with a high unit price can be reduced by the electric power output from the PV61. As a result, the electricity charges charged to the residents of each house can be reduced.

The second comparative example is different from the first comparative example shown in FIG. 3 in that the distributed power source 60 is provided for the load 41 for each house. In the second comparative example, the electric power output from each distributed power source 60 is directly supplied to the load 41 for each house. Of the power output from each distributed power source 60, surplus power exceeding the power consumption of the load 41 for each house is sold to the power grid 50 based on the power receiving contract for each house. The power receiving contract for each house is newly concluded according to the replacement of the resident of each house. A contract regarding the sale of surplus electricity may require complicated procedures such as registration of the transfer destination of the electricity charges sold. If the contract for selling surplus electricity is included in the power receiving contract for each house, each time the resident of each house is replaced, the new resident is forced to perform complicated procedures.

On the other hand, in the present embodiment, among the electric power output from the distributed power source 60, the surplus electric power exceeding the power consumption of the load 40 of the entire apartment house 1 is sold to the electric power grid 50 based on the collective power receiving contract. The lump-sum power reception contract can be continued regardless of the replacement of residents in each house. When the management entity of the apartment house 1 concludes a collective power receiving contract including a contract for selling surplus power, and the resident of each house is replaced, the new resident can avoid complicated procedures.

In the second comparative example, the distributed power source 60 is installed corresponding to each house of the apartment house 1. That is, the number of distributed power sources 60 installed can be equal to the number of apartments 1. In this case, the installation cost of the distributed power source 60 increases, and the installation space of the distributed power source 60 in each house is required.

On the other hand, in the present embodiment, the distributed power source 60 may be a shared facility of the apartment house 1. In this case, the installation cost and installation space of the distributed power source 60 can be reduced as compared with the case where the distributed power source 60 is installed corresponding to each house.

As shown in FIGS. 4A and 4B, the apartment building 1 may include a PV61 located along the roof. The PV61 may be installed across the roof of each house. When the PV61 is installed across the roof of each house, the installation area of the PV61 can be expanded as compared with the case where the PV61 is separately installed on the roof of each house. That is, since the PV61 is not the equipment of each house of the apartment house 1 but the shared equipment, the installation area of the PV61 can be expanded.

The apartment house 1 may include a retractable board 10 located along the outer wall. One lead-in board 10 may be provided for one apartment building 1. One lead-in board 10 may be connected to each house of the apartment house 1.

The number of units of the apartment house 1 shown in FIG. 4A is 3, but it may be 2 or 4 or more. The apartment house 1 shown in FIG. 4A is a one-story building, but may be a two-story or more building.

As shown in FIGS. 5 (A) and 5 (B), the retractable board 10 may include a door 16 having a window 15 and a housing 17. The lead-in board 10 may mount a first watt-hour meter 21, a second watt-hour meter 22, and a third watt-hour meter in the housing 17. The lead-in board 10 may mount the first breaker 31, the second breaker 32, and the third breaker 33 on the housing 17. The pull-in board 10 may mount the router 70 on the housing 17. The lead-in board 10 may mount wiring for connecting each component on the housing 17. By mounting the watt-hour meter on the drop-in board 10, the space or cost required for installing the watt-hour meter can be reduced as compared with the case where the watt-hour meter is installed separately.

As shown in FIG. 5A, with the door 16 closed, the watt-hour meter, the breaker, or the like mounted on the lead-in board 10 can be protected from the outside of the lead-in board 10. As shown in FIG. 5B, the watt-hour meter, the breaker, or the like can be operated with the door 16 open. In other words, with the door 16 closed as shown in FIG. 5A, the watt-hour meter, the breaker, or the like can be protected from being operated from the outside of the drop board 10.

The window 15 may include a transparent member. The watt-hour meter can be visually recognized through the window 15 with the door 16 of the lead-in board 10 closed. The window 15 includes a member that easily transmits radio waves, and may be located in the vicinity of the antenna 73. By doing so, the efficiency of transmitting and receiving radio waves by the antenna 73 can be improved.

The figure illustrating the embodiment according to the present disclosure is schematic. The dimensional ratios on the drawings do not always match the actual ones.

Although the embodiments according to the present disclosure have been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications or modifications based on the present disclosure. It should be noted, therefore, that these modifications or modifications are within the scope of this disclosure. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and a plurality of components can be combined or divided into one.

In the present disclosure, the description of "first", "second" and the like is an identifier for distinguishing the configuration. The configurations distinguished by the descriptions such as "first" and "second" in the present disclosure can exchange numbers in the configurations. For example, the first terminal can exchange the second terminal with the identifiers "first" and "second". The exchange of identifiers takes place at the same time. Even after exchanging identifiers, the configuration is distinguished. The identifier may be deleted. Configurations with the identifier removed are distinguished by a code. Based solely on the description of identifiers such as "1st" and "2nd" in the present disclosure, it shall not be used as an interpretation of the order of the configurations or as a basis for the existence of identifiers with smaller numbers.

1 Apartment house 10 Retractable board 11-14 1st to 4th terminals 15 Windows 16 Doors 17 Housing 18 Branch nodes 21 to 24 1st to 4th electricity meters 31 to 34 1st to 4th breakers 40 (41, 42) ) Load (door-to-door load, shared load)
50 Power grid 60 Distributed generation 61 Solar power generation equipment (PV)
62 Storage battery 70 Router 71 Acquisition unit 72 Communication unit 73 Antenna 80 Communication network 81 Server

Claims (3)

Equipped with a drop-in board, door-to -door load, shared load, distributed power supply, and door-to -door electricity meter .
The drop board is
Based on a collective power reception contract that receives power less than a predetermined value, power is collectively received from the power grid in order to supply power to the door-to-door load and the shared load.
A first watt-hour meter that can be connected to the power grid and measures the amount of power collectively received from the power grid in order to supply power to the door-to -door load and the shared load provided in the housing complex.
A second watt-hour meter that can be connected to the shared load and is connected to the first watt-hour meter .
It is connected between at least a part of the wiring to which the first watt-hour meter and the second watt-hour meter are connected and the distributed power supply, and measures the amount of power output by the distributed power supply. With the third electricity meter
An acquisition unit that acquires measurement results from at least one of the first watt-hour meter, the second watt-hour meter, and the third watt-hour meter.
With a communication unit that can send the measurement results to the server
Equipped with
The second watt-hour meter measures the electric energy including the electric energy supplied from the distributed power source to the shared load and the electric energy supplied from the electric power network to the shared load .
The door-to-door watt-hour meter is located outside the service board and is connected between at least a part of the wiring to which the first watt-hour meter and the second watt-hour meter are connected and the door-to-door load. An apartment house that measures the amount of electric power supplied to the load for each house. The apartment house according to claim 1, wherein the acquisition unit acquires measurement results from the door-to-door electricity meter. The drop-in board is provided with a door and a window.
The window is provided at a position where the first electric energy meter, the second electric energy meter, and the third electric energy meter can be visually recognized through the window with the door closed. Or the apartment house described in 2.

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