Energy Utilization System

Abstract

An object of the present invention is to allow the power generated by a natural energy power generation device to contribute to charging many electric vehicles. [Solution] The energy utilization system (1) comprises an apartment building (2) to be constructed on a site, a natural energy power generation device (8) installed on the site and generating electricity from natural energy, a parking lot (6) installed on the site, and a power controller (50) that distributes the electricity generated by the natural energy power generation device (8) to batteries (12) of multiple electric transport vehicles (10) parked in the parking lot (6) during the power generation time of the natural energy power generation device (8), and switches charging power among the batteries (12) of the multiple electric transport vehicles (10) during the non-power generation time of the natural energy power generation device (8).

Description

[Technical field]

[0001] The present invention relates to an energy utilization system. [Background technology]

[0002] Patent Document 1 discloses a charge / discharge control system that is adopted in an apartment building in which a solar cell module is installed. A power conditioner of the charge / discharge control system supplies power from a system power source and power generated by a solar cell module to each residential section and a common area. The power conditioner supplies power from the system power source and power generated by the solar cell module to a storage battery. At night, the power conditioner supplies discharged power from the storage battery to each residential section. A charge / discharge device of the charge / discharge control system charges the battery of an electric vehicle with the discharged power of the storage battery, and charges the battery with the discharged power of the battery of an electric vehicle. The power conditioner or the charge / discharge device does not distribute the generated power of the solar cell module to a plurality of electric vehicles. The power conditioner or the charge / discharge device does not transfer power between a plurality of electric vehicles. When the solar cell module generates power during the day, since many of the electric vehicles are in use, the batteries of the electric vehicles in use are not charged, and only the unused electric vehicles are charged. Even though many electric vehicles return to the parking lot of the housing complex at night, the solar cell modules do not generate electricity, so the discharged power of the storage battery alone is not enough to charge the electric vehicles and cover the power consumption of each residential area, and the power from the grid power supply is also used for charging the electric vehicles and for the power consumption of each residential area. Therefore, it cannot be said that the power generated by the solar cell modules is contributing to the charging of electric vehicles. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-146767 A Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, an object of the present invention is to allow the generated power of a natural energy power generation device to contribute to charging many electric vehicles. [Means for solving the problem]

[0005] The following reference numbers in parentheses refer to Figures 1 and 2.

[0006] In order to solve the above problems, according to claim 1, An energy utilization system (1), An apartment building (2) to be built on the site; A natural energy power generation device (8) installed on the site and generating electric power from natural energy; A parking lot (6) installed on the premises; a power controller (50) that distributes the electric power generated by the natural energy power generation device (8) to batteries (12) of a plurality of electric vehicles (10) parked in the parking lot (6) during a power generation time period of the natural energy power generation device (8) and switches charging electric power among the batteries (12) of the plurality of electric vehicles (10) during a non-power generation time period of the natural energy power generation device (8); Equipped with 、 The power controller (50) switches charging power between the batteries (12) of the plurality of electric vehicles (10) until the charge amount of each of the batteries (12) of the plurality of electric vehicles (10) reaches a set value determined based on the daily schedule of each of the plurality of electric vehicles (10) for the next day. The present invention provides an energy utilization system (1).

[0007] According to claim 1 as described above, during a power generation time period of the natural energy power generation device (8), the electric power generated by the natural energy power generation device (8) is distributed to the batteries (12) of the multiple electric transports (10) parked in the parking lot (6). During a non-power generation time period of the natural energy power generation device (8), charging electric power is exchanged between the batteries (12) of the multiple electric transports (10). Therefore, even if the electric transports (10) are not parked in the parking lot (6) during a power generation time period, if the electric transports (10) return to the parking lot (6) during the non-power generation time period, the charging electric power to the batteries (12) of the electric transports (10) is generated by the natural energy power generation device (8). Therefore, the electric power generated by the natural energy power generation device (8) contributes to charging many electric transports (10).

[0009] The above claims 1 According to this, the battery (12) of the electric transport device (10) is charged or discharged until the charge amount of the battery (12) reaches a set value determined based on the daily schedule for the next day, so that the charge amount of the battery (12) is appropriate, neither excessive nor insufficient.

[0010] Claim 2 According to Claim 1 In the energy utilization system (1) described in The daily schedule is a destination, a route, or a distance to be traveled by the electric vehicle (10). An energy utilization system (1) is provided.

[0011] The above claims 2 According to this, the battery (12) of the electric transport device (10) is charged or discharged until the charge amount of the battery (12) reaches a set value determined based on the destination, the travel route, or the travel distance, so that the charge amount of the battery (12) is appropriate, neither excessive nor insufficient.

[0012] Claim 3 According to Claim1 or 2 In the energy utilization system (1) described in a management device (66) for managing the daily schedules of each of the plurality of electric transport machines (10) and determining setting values ​​based on the daily schedules of each of the plurality of electric transport machines (10) for the next day; An energy utilization system (1) is provided, comprising:

[0013] The above claims 3 According to this method, the daily schedules of each of a plurality of electric vehicles (10) are managed by a management device (66).

[0014] Claim 4 According to An energy utilization system (1), An apartment building (2) to be built on the site; A natural energy power generation device (8) installed on the site and generating electric power from natural energy; A parking lot (6) installed on the premises; a power controller (50) that distributes the electric power generated by the natural energy power generation device (8) to batteries (12) of a plurality of electric vehicles (10) parked in the parking lot (6) during a power generation time period of the natural energy power generation device (8) and switches charging electric power among the batteries (12) of the plurality of electric vehicles (10) during a non-power generation time period of the natural energy power generation device (8); Equipped with The power controller (50) switches charging power between the batteries (12) of the plurality of electric vehicles (10) until the charge amount of each of the batteries (12) of the plurality of electric vehicles (10) reaches a set value determined based on the operation history of each of the plurality of electric vehicles (10). An energy utilization system (1) is provided.

[0015] The above claims 4 According to this, the battery (12) of the electric transport device (10) is charged or discharged until the charge amount of the battery (12) reaches a set value determined based on the operation history, so that the past operation tendency of the electric transport device (10) is reflected in the charge amount of the battery (12), and the charge amount of the battery (12) is neither excessive nor insufficient, and is appropriate.

[0016] Claim 5 According to Claim 4In the energy utilization system (1) described in The operation history is an operating rate, a travel distance data string in which the travel distance of the electric transport (10) is arranged in daily chronological order, a speed data string in which the travel speed of the electric transport (10) is arranged in chronological order, an acceleration data string in which the acceleration of the electric transport (10) is arranged in chronological order, or a remaining charge data string in which the measured values ​​of the remaining charge amount in the battery (12) of the electric transport (10) are arranged in chronological order. An energy utilization system (1) is provided.

[0017] The above claims 5 According to this, the battery (12) of the electric transport device (10) is charged or discharged until the charge amount of the battery (12) reaches a set value determined based on the travel distance data sequence, the speed data sequence, the acceleration data sequence, or the remaining charge data sequence. Therefore, the past operating tendency of the electric transport device (10) is reflected in the charge amount of the battery (12), and the charge amount of the battery (12) is neither excessive nor insufficient.

[0018] Claim 6 According to Claim 4 or 5 In the energy utilization system (1) described in a management device (66) that manages the operation history of each of the plurality of electric transport machines (10) and determines a set value based on the operation history of each of the plurality of electric transport machines (10); An energy utilization system (1) is provided, comprising:

[0019] Claim 6 According to this method, the operation history of each of the plurality of electric transport machines (10) is managed by a management device (66).

[0020] Claim 7 According to Claim Item 1 , 2 , 4 or 5 In the energy utilization system (1) described in The housing complex (2) includes a plurality of management devices (46) installed in a plurality of private areas (4), The management device (46) displays a measured value of the charge amount of each of the batteries (12) of the plurality of electric vehicles (10). An energy utilization system (1) is provided. According to claim 8, An energy utilization system (1), An apartment building (2) to be built on the site; A natural energy power generation device (8) installed on the site and generating electric power from natural energy; A parking lot (6) installed on the premises; a power controller (50) that distributes the electric power generated by the natural energy power generation device (8) to batteries (12) of a plurality of electric vehicles (10) parked in the parking lot (6) during a power generation time period of the natural energy power generation device (8) and switches charging electric power among the batteries (12) of the plurality of electric vehicles (10) during a non-power generation time period of the natural energy power generation device (8); Equipped with The management device (46) displays a measured value of the charge amount of each of the batteries (12) of the plurality of electric vehicles (10). An energy utilization system (1) is provided.

[0021] The above claims 7、8 This allows the resident to know the charge level of the electric transport vehicle (10) while remaining in the private area (4) without having to move from the private area (4) to the electric transport vehicle (10).

[0022] According to claim 9, Claim Item 1 , 2 , 4 or 5 In the energy utilization system (1) described in The natural energy power generation device (8) is a solar power generation panel, the power generation time period is daytime, and the non-power generation time period is nighttime. An energy utilization system (1) is provided.

[0023] According to claim 9 as described above, the power generation time periods and non-power generation time periods are adapted to the rhythm of human life. In other words, even if the electric transport (10) is not parked in the parking lot (6) during the day, if the electric transport (10) returns to the parking lot (6) at night, the charging power to the battery (12) of the electric transport (10) is generated by the natural energy power generation device (8). Therefore, the power generated by the natural energy power generation device (8) contributes to charging many electric transports (10).

[0024] According to claim 10, Claim Item 1 , 2 , 4 or 5 In the energy utilization system (1) described in The natural energy power generation device (8) is installed on the roof of the apartment building (2). An energy utilization system (1) is provided.

[0025] According to claim 10, the rooftop of the apartment building (2) is spacious, which contributes to the large scale and improved power generation capacity of the natural energy power generation device (8). This increases the possibility that the power generated by the natural energy power generation device (8) can cover the charging of the electric vehicle (10). Effect of the Invention

[0026] According to the present invention, the electric power generated by the natural energy power generation device contributes to charging many electric vehicles. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 is an external view of the energy utilization system. [Diagram 2] FIG. 2 is a block diagram of the energy utilization system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, the embodiments will be described with reference to the drawings. The features and technical effects of the embodiments will be understood from the following detailed description and drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. The drawings are provided for illustrative purposes only, and therefore the scope of the present invention is not limited to the illustrations in the drawings.

[0029] <1. Energy Utilization System> Fig. 1 is a schematic diagram of an energy utilization system 1 installed on a site. Fig. 2 is a block diagram of the energy utilization system 1.

[0030] The energy utilization system 1 includes a building 2, a parking lot 6, a natural energy power generation device 8, multiple electric vehicles 10, a main meter 32, power receiving equipment 34, a main distribution board 36, multiple exclusive area electrical boards 42, multiple exclusive area meters 44, multiple individual management devices 46, a power controller 50, multiple vehicle power converters 52, a battery power converter 54, a stationary battery 56, a self-generating meter 58, a common area electrical board 62, a common area meter 64, an integrated management device 66, and multiple loads 68.

[0031] At the design stage before the construction of the energy utilization system 1, an annual energy balance is simulated based on input information, and the power generation capacity of the natural energy power generation device, the storage capacity of the stationary battery, the storage capacity of the electric transport vehicle, etc. are proposed, and the energy utilization system 1 is designed based on the proposal. The energy utilization system 1 is constructed based on such a design. The input information is, for example, building performance, location conditions, weather conditions, equipment specifications, number of households, total number of residents, residents' lifestyles, number of electric transport vehicles, specifications of the electric transport vehicles, driving patterns of the electric transport vehicles, or a combination of two or more of these. Such proposals contribute to understanding the equipment necessary for constructing the energy utilization system 1 at the design stage of the energy utilization system 1.

[0032] Building 2 is constructed on the site. Building 2 is a one-story or multi-story apartment building known as a condominium. Building 2 may have a basement. The framework of building 2 is made of reinforced concrete, steel-reinforced concrete, or wood. Building 2 may be a multi-story mixed structure. A mixed structure has a lower floor made of reinforced concrete or steel-reinforced concrete, and an upper floor made of wood built on top of that. Building 2 may be a condominium building in which condominium ownership is established under the Act on Condominium Ownership, etc., or it may be a single-building building that is not. A condominium building is also known as a condominium for sale, and a single-building building is also known as a rental apartment.

[0033] The building 2 has multiple private areas 4 and a common area 5 other than the private areas 4. The private areas 4 are, for example, private dwelling units separated by a partition wall. The common areas 5 include an entrance, a common corridor, an elevator hall, an elevator, a common staircase, a common room, a garbage disposal area, a machine room or an electrical equipment room, or a combination of two or more of these.

[0034] The natural energy power generation device 8 is installed on the site. More specifically, the natural energy power generation device 8 is installed on the rooftop of the building 2. Because the building 2 is an apartment building, the rooftop of the building 2 is large, and the natural energy power generation device 8 is large. Therefore, the maximum output of the natural energy power generation device 8 is high. The natural energy power generation device 8 may be installed on an outer wall of the building 2. The natural energy power generation device 8 may be installed on a site away from the building 2.

[0035] The natural energy power generation device 8 generates DC power from natural energy and outputs the DC power to the power controller 50. When the power generation principle of the natural energy power generation device 8 is to generate AC power using an induction motor or the like, such as a wind power generator, the natural energy power generation device 8 has an AC / DC converter that converts the AC power into DC power.

[0036] 1, the natural energy power generation device 8 has a plurality of solar power generation panels that generate DC power from solar energy. The natural energy power generation device 8 may have a power generation device other than the solar power generation panels, such as a wind power generator, in addition to or instead of the solar power generation panels.

[0037] When the natural energy power generation device 8 is a solar power generation panel, the natural energy power generation device 8 generates power during the day and does not generate power at night. The time period during which the natural energy power generation device 8 generates power is called a power generation time period, and the time period during which the natural energy power generation device 8 does not generate power is called a non-power generation time period.

[0038] The parking lot 6 is installed on the premises. There is no limit to the type of parking lot 6, but in the example shown in FIG. 1, the parking lot 6 is a flat parking lot installed outside the building 2. The parking lot 6 may be a mechanical multi-story parking lot or a self-propelled multi-story parking lot installed outside the building 2. The parking lot 6 may be installed in the basement or first floor of the building 2. The parking lot 6 may be a mechanical parking lot or a self-propelled parking lot installed inside the building 2. The parking lot 6 may be a combination of several of the types listed above. When the parking lot 6 is installed outside the building 2, the natural energy power generation device 8 may be installed in whole or in part on the roof of the parking lot 6.

[0039] The parking lot 6 is divided into a plurality of parking areas and a plurality of bicycle parking areas, and one automobile can be parked in each parking area, and one motorcycle can be parked in each bicycle parking area. Both automobiles and motorcycles are types of transport aircraft. The parking lot 6 may have one or more parking areas, and one flying transport aircraft can be parked in each parking area. The flying transport aircraft is a multi-wing aircraft that can hover, and is also called a drone. The flying transport aircraft may be manned or unmanned. The parking area, bicycle parking area, and aircraft parking area are collectively called the transport aircraft parking area. The transport aircraft parking area may be rented out to an outsider, and in this case, the resident, management association, or lessor of the building 2 may receive money or its equivalent from the lessee of the transport aircraft parking area. The transport aircraft parking area is classified into an electric transport aircraft parking area and a general transport aircraft parking area. In the electric transport aircraft parking area, an electric transport aircraft 10 can be parked exclusively. In the general transport aircraft parking area, not only electric transport aircraft other than the electric transport aircraft 10 but also non-electric transport aircraft can be parked. The electric transport aircraft 10 is an electric four-wheel vehicle, an electric two-wheel vehicle, or an electric multi-wing aircraft.

[0040] During the day, i.e., during power generation hours, the residents of the building 2 go out on the electric vehicles 10, so there tends to be fewer electric vehicles 10 remaining in the parking lot 6. During the night, i.e., during non-power generation hours, the residents of the building 2 go home, so there tends to be more electric vehicles 10 remaining in the parking lot 6.

[0041] The power receiving equipment 34 is installed in a common area inside the building 2. The power receiving equipment 34 may be installed within the premises but outside the building 2. The power receiving equipment 34 has a transformer and the like. The power receiving equipment 34 receives three-phase AC power from the power company's system power supply 30, converts the three-phase AC power into low-voltage AC power, and supplies the AC power to the main switchboard 36.

[0042] The main meter 32 periodically measures the power and amount of power supplied from the system power source 30 to the power receiving equipment 34. The main meter 32 may periodically measure the power and amount of power supplied from the power receiving equipment 34 to the main switchboard 36. The measurement period for the power and amount of power is variable or fixed. The power measured by the main meter 32 is the total power consumption consumed throughout the premises of the building 2, and the amount of power measured by the main meter 32 is the time integral of that total power consumption. The main meter 32 transmits the measurement values ​​of the power and amount of power to the integrated management device 66 each time the power and amount of power are measured.

[0043] The main switchboard 36 is installed in the common area inside the building 2. The main switchboard 36 has a transformer, a switchgear, a relay, a disconnector, a circuit breaker, a transformer, a switch, etc. The main switchboard 36 transforms the power supplied from the power receiving equipment 34, and distributes the transformed power to the common area switchboard 62 and the exclusive area switchboard 42. The main switchboard 36 may distribute the transformed power to the power controller 50.

[0044] The common area electrical panel 62 is installed in the common area 5 inside the building 2. The common area electrical panel 62 has a power panel, a light panel, etc. The common area electrical panel 62 distributes power to a plurality of loads 68 installed in the common area 5. The loads 68 receive power from the common area electrical panel 62 and consume that power to operate. The loads 68 are, for example, lights, elevators, automatic doors, air conditioning equipment, etc.

[0045] The common area meter 64 periodically measures the power and amount of power supplied from the main switchboard 36 to the common area panel 62. The measurement period for the power and amount of power is variable or fixed. The power measured by the common area meter 64 is the total power consumption consumed in the common area 5, and the amount of power measured by the common area meter 64 is the time integral of that total power consumption.

[0046] The common meter 64 transmits the measured values ​​of power and energy to the integrated management device 66 each time it measures power and energy.

[0047] The exclusive area electrical panel 42 is installed in each exclusive area 4. The exclusive area electrical panel 42 has a circuit breaker and the like. The exclusive area electrical panel 42 distributes power to the load 48 and individual management device 48 connected to the exclusive area electrical panel 42 via an in-house wiring network laid in the exclusive area 4. The load 48 receives power from the exclusive area electrical panel 42 and consumes that power to operate. The load 48 is electrical equipment such as lighting fixtures, refrigerators, air conditioners, water heaters, communication network equipment (routers, wireless base stations, wireless repeaters, telephones, etc.), televisions, audio equipment, recorders, cooking appliances, etc.

[0048] The exclusive area meter 44 periodically measures the power and amount of power supplied from the main distribution board 36 to the exclusive area panel 42. The measurement period for the power and amount of power is variable or fixed. The power measured by the exclusive area meter 44 is the total power consumed in the exclusive area 4, and the amount of power measured by the exclusive area meter 44 is the time integral of that total power consumption. The exclusive area meter 44 transmits the measurement values ​​of the power and amount of power to the individual management device 48 each time it measures the power and amount of power.

[0049] The individual management device 48 is connected to an information and communication network such as the Internet. The individual management device 48 is composed of a general-purpose computer system or a dedicated computer system. The general-purpose computer system refers to a computer system such as a mobile phone, a smartphone, a tablet computer, a laptop computer, and a desktop computer on which a general-purpose OS (Operating System) is installed. The general-purpose OS is, for example, Windows (registered trademark), Android (registered trademark), iOS (registered trademark), macOS (registered trademark), Linux (registered trademark), or Unix (registered trademark). The general-purpose OS has installed therein a program for performing monitoring, management, control, power monitoring, power management, and power control of the load 48 inside the exclusive area 4. The dedicated computer system refers to a computer system that is installed on the wall of the exclusive area 4 or the like and is specialized in the function of performing monitoring, management, control, power monitoring, power management, and power control of the load 48 inside the exclusive area 4. For example, a Home Energy Management System (HEMS) controller can be given as a dedicated computer system.

[0050] Each time the individual management device 48 receives a power measurement value from the exclusive unit meter 44, it stores the power measurement value in chronological order. As a result, the individual management device 48 accumulates a data string in which the measurement values ​​of the total power consumption of the exclusive unit 4 are arranged in chronological order. Each time the individual management device 48 receives a power measurement value from the exclusive unit meter 44, it updates and displays the latest measurement value of the total power consumption of the exclusive unit 4. The individual management device 48 displays the data string of the measurement values ​​of the total power consumption of the exclusive unit 4 in a graph. The graph shows the progress of the measurement value of the total power consumption of the exclusive unit 4.

[0051] Each time the individual management device 48 receives a measured value of the amount of power from the exclusive unit meter 44, it stores the measured value of the amount of power in chronological order. As a result, the individual management device 48 accumulates a data string in which the measured values ​​of the total power consumption of the exclusive unit 4 are arranged in chronological order. Each time the individual management device 48 receives a measured value of the amount of power from the exclusive unit meter 44, it updates and displays the latest measured value of the total power consumption of the exclusive unit 4. The individual management device 48 displays the data string of the total power consumption of the exclusive unit 4 in a graph. The graph shows the progress of the measured value of the total power consumption of the exclusive unit 4.

[0052] The power controller 50 is installed in the common area 5 inside the building 2. The power controller 50 is connected to the natural energy power generation device 8 by an electric wire. The power controller 50 is supplied with DC power output by the natural energy power generation device 8.

[0053] The private power generation meter 58 periodically measures the power and amount of power supplied from the natural energy power generation device 8 to the power controller 50. The measurement period for the power and amount of power is variable or fixed. The power measured by the private power generation meter 58 is the power generated by the natural energy power generation device 8, and the amount of power measured by the private power generation meter 58 is the time integral of that generated power. The private power generation meter 58 transmits the measurement values ​​of the power and amount of power to the integrated management device 66 each time it measures the power and amount of power.

[0054] The power controller 50 is connected to a plurality of vehicle power converters 52 and a battery power converter 54. The battery power converters 54 are installed in the common area 5 inside the building 2. The battery power converters 54 and the power controller 50 exchange DC power with each other. The vehicle power converters 52 are installed beside each of the electric vehicle parking areas in the parking lot 6. The vehicle power converters 52 and the power controller 50 exchange DC power with each other. The power controller 50 is connected to the main switchboard 36. The power controller 50 and the main switchboard 36 exchange AC power with each other.

[0055] The power controller 50 is a power conditioner having a DC / DC converter, a DC / AC converter, an AC / DC converter, a switch, a control circuit, and the like. During the power generation time period, that is, during the daytime, the power controller 50 operates in the distribution mode. In the distribution mode, the power controller 50 adjusts the voltage of the DC power supplied from the natural energy power generation device 8 by the DC / DC converter, and distributes the DC power adjusted by the DC / DC converter to the battery power converter 54 and the vehicle power converter 52. As described above, there is a tendency that there are few electric vehicles 10 remaining in the parking lot 6 during the power generation time period. During the daytime, an outsider may park his / her own electric vehicle in the vehicle parking area, and the electric vehicle may be connected to the vehicle power converter 52, and the vehicle power converter 52 may charge the battery of the electric vehicle with the distributed power. In this case, the resident, management association, or renter of the building 2 may receive money or its equivalent from an outsider.

[0056] When the power controller 50 operates in the distribution mode, if surplus power is generated in the battery power converter 54 and the transport power converter 52, the power controller 50 may or may not convert the surplus power to AC using a DC / AC converter and then supply it to the main distribution board 36. The surplus power refers to the excess power generated by the natural energy power generation device 8 when it exceeds the charging power of the battery power converter 54 and the transport power converter 52. The main distribution board 36 distributes the surplus power supplied from the power controller 50 to the common area panel 62 and the exclusive area panel 42. The main distribution board 36 supplies the surplus power supplied from the power controller 50 to the common area panel 62, but does not have to supply it to the exclusive area panel 42.

[0057] When the power controller 50 operates in the distribution mode, if a power shortage occurs in the battery power converter 54 and the transport power converter 52, the power controller 50 may or may not receive the supply of the shortage power from the main switchboard 36. The power shortage refers to the shortage when the power generated by the natural energy power generation device 8 falls short of the charging power of the battery power converter 54 and the transport power converter 52. The power controller 50 converts the shortage power supplied from the main switchboard 36 to DC and distributes it to the battery power converter 54 and the transport power converter 52.

[0058] During non-power generation times, that is, at night, the power controller 50 operates in a swapping mode. In the swapping mode, the power controller 50 receives DC power from one or more transport power converters 52, adjusts the voltage of the DC power using a DC / DC converter, and distributes the DC power adjusted by the DC / DC converter to the other transport power converters 52. The details of the swapping mode will be described later.

[0059] The power controller 50 periodically measures the charge remaining in the stationary battery 56 through the battery power converter 54. Each time the power controller 50 measures the charge, it transmits the measured charge value to the integrated management device 66.

[0060] The power controller 50 periodically measures the charge remaining in the battery 12 of the electric vehicle 10 connected to the vehicle power converter 52 through the vehicle power converter 52. The power controller 50 transmits the measured charge amount to the integrated management device 66 each time the charge amount is measured.

[0061] The battery power converter 54 is connected to the stationary battery 56. The battery power converter 54 is a power conditioner having a bidirectional DC / DC converter, a control circuit, and the like. The battery power converter 54 charges and discharges the stationary battery 56. When charging the stationary battery 56, the battery power converter 54 adjusts the voltage of the DC power supplied from the power controller 50 using the bidirectional DC / DC converter, and supplies the adjusted DC power to the stationary battery 56. When discharging the stationary battery 56, the battery power converter 54 adjusts the voltage of the DC power discharged from the stationary battery 56 using the bidirectional DC / DC converter, and supplies the adjusted DC power to the power controller 50.

[0062] The stationary battery 56 is installed in the common area 5 inside the building 2. The stationary battery 56 may be installed in a building constructed outside the building 2. The stationary battery 56 may be removable from the installation location. The stationary battery 56 has a plurality of small batteries, which may be separable and removable from the installation location. Casters may be attached to the small batteries of the stationary battery 56 to facilitate transportation. The small batteries of the stationary battery 56 may be replaced with uncharged small batteries, and such an exchange program may be implemented, or a small battery rental program may be implemented. It should be noted that the battery power converter 54 and the stationary battery 56 do not necessarily have to be installed.

[0063] The power converter 52 for the transport is a power conditioner having a bidirectional DC / DC converter, a charge / discharge cable with a plug, and a control circuit. When the charge / discharge cable with a plug is connected to the plug of the electric transport 10, the power converter 52 for the transport is connected to the battery 12 of the electric transport 10, and the power converter 52 for the transport charges and discharges the battery 12 of the electric transport 10. When charging the battery 12 of the electric transport 10, the power converter 52 for the transport adjusts the voltage of the DC power supplied from the power controller 50 using the bidirectional DC / DC converter, and supplies the adjusted DC power to the battery 12 of the electric transport 10. When discharging the battery 12 of the electric transport 10, the power converter 52 for the transport adjusts the voltage of the DC power discharged from the battery 12 of the electric transport 10 using the bidirectional DC / DC converter, and supplies the adjusted DC power to the power controller 50.

[0064] The power converter 52 for the vehicle may have a non-contact power feeder 53 installed in the parking area of ​​the electric vehicle instead of a charging / discharging cable with a plug. When the electric vehicle 10 is parked on the non-contact power feeder 53, the power converter 52 for the vehicle charges and discharges the battery 12 of the electric vehicle 10 in a non-contact manner. The method of transmitting and receiving power between the non-contact power feeder 53 and the electric vehicle 10 is an electromagnetic coupling method, a magnetic field resonance method, or an electric field coupling method.

[0065] The number of plug-equipped charging cables that the transport power converter 52 has may be one or more, and the number of electric vehicles 10 that the transport power converter 52 can charge and discharge is equal to the number of plug-equipped charging cables. When the transport power converter 52 has a plurality of plug-equipped charging cables, the plug-equipped charging cables are connected in parallel to the bidirectional DC / DC converter. The transport power converter 52 may be connected in series to the batteries 12 of a plurality of electric vehicles 10, and the transport power converter 52 may charge the batteries 12 of those electric vehicles 10.

[0066] The power controller 50, the battery power converter 54, and the transport power converter 52 (excluding the charging cable with a plug or the non-contact power supply 53) may be integrated together. A device in which they are integrated together is also called an energy management system (EMS).

[0067] The parking location of the electric vehicle 10 in the parking lot 6 is determined in advance. The vehicle power converter 52 to which the electric vehicle 10 is connected is determined in advance.

[0068] The electric transport 10 may be rented out through a rental service or a sharing service. The rental of the electric transport 10 may be limited to residents of the building 2, or may be open to not only residents of the building 2 but also outsiders. When the electric transport 10 is rented out to outsiders, the residents, management association, or lessor of the building 2, or the rental service provider or sharing service provider of the electric transport 10 may receive money or an equivalent from the tenant of the electric transport 10. The electric transport 10 may be shared by the residents of the building 2. The electric transport 10 may be exclusively owned by the residents of the building 2.

[0069] The electric transport 10 is an electric four-wheel vehicle, an electric two-wheel vehicle, or an electric multi-wing vehicle. The electric transport 10 has a chargeable and dischargeable battery 12, an electric motor driven by the power of the battery 12, a transport body that runs or flies by the power of the electric motor, and a control device. The electric transport 10 may be a plug-in hybrid transport further having a prime mover.

[0070] The battery 12 may have a plurality of small batteries, which may be separable and removable from the vehicle body. The number of small batteries in the battery 12 may be increased or decreased. Reducing the number of small batteries contributes to reducing the weight of the electric transport 10 and improving the fuel efficiency of the electric transport 10. The small batteries in the battery 12 may be replaced with charged small batteries, and such an exchange business may be implemented, or a small battery rental business may be implemented. Casters may be attached to the small batteries in the battery 12 to facilitate portability. The small batteries in the battery 12 may be replaceable with the small batteries in the stationary battery 56. Even when the small batteries in the stationary battery 56 are replaced with the battery 12 in the electric transport 10, the electric motor in the electric transport 10 may be driven by the power of the battery 12. Even if the small battery of the stationary battery 56 is replaced from the stationary battery 56 to the battery 12 of the electric transport 10, the power converter 52 for the transport can charge and discharge the battery 12. Even if the small battery of the battery 12 of the electric transport 10 is replaced from the battery 12 of the electric transport 10 to the stationary battery 56, the power converter 54 for the battery can charge and discharge the stationary battery 56.

[0071] The integrated management device 66 is connected to an information and communication network such as the Internet. The integrated management device 66 is installed in a management room in the common area 5, for example. The integrated management device 66 may be installed in a data center outside the building 2. The integrated management device 66 is a server host machine composed of a computer system. The integrated management device 66 may be composed of one computer system, or may be composed of multiple computer systems capable of distributed processing or parallel processing. The integrated management device 66 may be a cloud computing system.

[0072] Each time the integrated management device 66 receives a measured value of the amount of charge from the power controller 50, it stores the measured value of the amount of charge in chronological order. As a result, the integrated management device 66 accumulates a data string in which the measured values ​​of the amount of charge of the stationary battery 56 are arranged in chronological order. Each time the integrated management device 66 receives a measured value of the amount of charge from the power controller 50, it updates and displays the latest measured value of the amount of charge of the stationary battery 56. The integrated management device 66 displays the data string of the measured values ​​of the amount of charge of the stationary battery 56 in a graph. The graph shows the progress of the measured value of the amount of charge of the stationary battery 56.

[0073] Each time the integrated management device 66 receives a measured value of the charge amount from the power controller 50, it stores the measured value of the charge amount in chronological order. As a result, the integrated management device 66 accumulates a data string in which the measured values ​​of the charge amount of the battery 12 are arranged in chronological order for each electric transport vehicle 10. Each time the integrated management device 66 receives a measured value of the charge amount from the transport vehicle power converter 52, it updates and displays the latest measured value of the charge amount of the battery 12. The integrated management device 66 displays the data string of the measured values ​​of the charge amount of the battery 12 in a graph. The graph shows the progress of the measured value of the charge amount of the battery 12.

[0074] Each time the integrated management device 66 receives a power measurement value from the main meter 32, it stores the power measurement value in chronological order. As a result, the integrated management device 66 accumulates a data string in which the measurement values ​​of the total power consumption consumed throughout the entire site of the building 2 are arranged in chronological order. Each time the integrated management device 66 receives a power measurement value from the main meter 32, it updates and displays the latest measurement value of the overall total power consumption. The integrated management device 66 displays the data string of the measurement values ​​of the overall total power consumption in a graph. The graph shows the progress of the measurement values ​​of the overall total power consumption.

[0075] Each time the integrated management device 66 receives a measured value of the amount of power from the main meter 32, it stores the measured value of the amount of power in chronological order. As a result, the integrated management device 66 accumulates a data string in which the measured values ​​of the total amount of power consumed throughout the entire site of the building 2 are arranged in chronological order. Each time the integrated management device 66 receives a measured value of the amount of power consumed from the main meter 32, it updates and displays the latest measured value of the total amount of power consumed overall. The integrated management device 66 displays the data string of the measured values ​​of the total amount of power consumed in a graph. The graph shows the progress of the measured values ​​of the total amount of power consumed overall.

[0076] Each time the integrated management device 66 receives a power measurement value from the common area meter 64, it stores the power measurement value in chronological order. As a result, the integrated management device 66 accumulates a data string in which the measurement values ​​of the total power consumption consumed in the common area 5 are arranged in chronological order. Each time the integrated management device 66 receives a power measurement value from the common area meter 64, it updates and displays the latest measurement value of the total power consumption in the common area 5.

[0077] Each time the central management device 66 receives a measured value of the amount of power from the common area meter 64, it stores the measured value of the amount of power in chronological order. As a result, the central management device 66 accumulates a data string in which the measured values ​​of the total amount of power consumed in the common area 5 are arranged in chronological order. Each time the central management device 66 receives a measured value of the amount of power consumed in the common area 5 from the common area meter 64, it updates and displays the latest measured value of the total amount of power consumed in the common area 5. The central management device 66 displays the data string of the measured values ​​of the total amount of power consumed in the common area 5 in a graph. The graph shows the progress of the measured value of the total amount of power consumed in the common area 5.

[0078] Each time the integrated management device 66 receives a power measurement value from the private power generation meter 58, it stores the power measurement value in chronological order. As a result, the integrated management device 66 accumulates a data string in which the measurement values ​​of the power generated by the natural energy power generation device 8 are arranged in chronological order. Each time the integrated management device 66 receives a power measurement value from the private power generation meter 58, it updates and displays the latest measurement value of the power generated by the natural energy power generation device 8. The integrated management device 66 displays the data string of the measurement values ​​of the power generated by the natural energy power generation device 8 in a graph. The graph shows the progress of the measurement value of the power generated by the natural energy power generation device 8.

[0079] Each time the integrated management device 66 receives a measured value of the amount of power from the private power generation meter 58, it stores the measured value of the amount of power in chronological order. As a result, the integrated management device 66 accumulates a data string in which the measured values ​​of the amount of power generated by the natural energy power generation device 8 are arranged in chronological order. Each time the integrated management device 66 receives a measured value of the amount of power generated by the natural energy power generation device 8, it updates and displays the latest measured value of the amount of power generated by the natural energy power generation device 8. The integrated management device 66 displays the data string of the measured values ​​of the amount of power generated by the natural energy power generation device 8 in a graph. The graph shows the progress of the measured values ​​of the amount of power generated by the natural energy power generation device 8.

[0080] The integrated management device 66 and the individual management device 48 synchronize the data string of the measured charge amount for each electric vehicle 10. The individual management device 48 displays the data string of the measured charge amount for each electric vehicle 10 in a graph. The graph shows the progress of the measured charge amount. The individual management device 48 displays the latest measured charge amount.

[0081] The electric transport 10 has electronic equipment 14, such as a navigation device, installed within the transport body. The electronic equipment 14 may be removable from the transport body of the electric transport 10 and may be portable. When the electric transport 10 is exclusively used by a resident of the building 2, the electronic equipment 14 may be linked to an individual management device 48 installed in the exclusive area 4 of the occupant.

[0082] The electronic device 14 is connected to an information and communication network such as the Internet. The electronic device 14, the integrated management device 66, and the individual management devices 48 are capable of communicating with each other. A secure communication protocol such as a Virtual Private Network (VPN) may be adopted for communication between the electronic device 14, the integrated management device 66, and the individual management devices 48.

[0083] The electronic device 14 includes a central processing unit (CPU), a graphics processing unit (GPU), a random access memory (RAM), a read only memory (ROM), a storage device, a communication device, a GNSS positioning device, an input device, a display device, and the like.

[0084] The electronic device 14 has a function of identifying the current position of the electric transport vehicle 10 based on signals received from a plurality of satellites. The electronic device 14 has a function of displaying a map. The electronic device 14 has a function of displaying the current position of the electric transport vehicle 10 on a map. The electronic device 14 has a function of communicating with a control device of the electric transport vehicle 10 and acquiring a measured value of the amount of charge remaining in the battery 12 from the control device of the electric transport vehicle 10. The electronic device 14 has a function of searching for a route from the current position of the electric transport vehicle 10 to a destination. The charge amount of the battery 12 at the time of the search may be taken into consideration when searching for a route. When searching for a route, the electronic device 14 may calculate the amount of power consumption required for the electric transport vehicle 10 to move along the route. The electronic device 14 has a function of displaying a route from the current position of the electric transport vehicle 10 to a destination. The electronic device 14 has a function of displaying the calculated amount of power consumption. The route may include waypoints set between the current position and the destination. The waypoints may be charging / discharging stations that can charge / discharge the battery 12 of the electric transport vehicle 10. In this case, the electronic device 14 may set a route point based on a measurement value of the amount of charge remaining in the battery 12. The charging / discharging station may be a retail store. Discharging at the charging / discharging station may be selling electricity. Charging at the charging / discharging station may be purchasing electricity. The electronic device 14 has a function of accumulating an operation history of the electric transport 10. The operation history has a position data sequence in which the positions of the electric transport 10 are arranged in chronological order. The operation history may have a travel distance data sequence in which the distance traveled by the electric transport 10 in a day is arranged in daily chronological order. The operation history may have a speed data sequence in which the travel speed of the electric transport 10 is arranged in chronological order. The operation history may have an acceleration data sequence in which the acceleration of the electric transport 10 is arranged in chronological order. The operation history may have a remaining amount data sequence in which the measurement values ​​of the amount of charge remaining in the battery 12 of the electric transport 10 are arranged in chronological order. The operation history may have an operating rate of the electric transport 10. The availability rate is a value obtained by dividing the actual operation hours of the electric transport 10 per day by 24 hours. The actual operation hours of the electric transport 10 per day may be a past average value, and the average value may be an arithmetic average value, a weighted average value, a geometric average value, a harmonic average value, a trimmed average value, or a moving average value.

[0085] The electronic device 14 instantly transmits the difference in operation history to the integrated management device 66. The difference in operation history refers to the difference between the operation history before and after an update when the operation history is updated. The integrated management device 66 accumulates the operation history by storing the difference in operation history for each electric transport 10. The integrated management device 66 displays the contents of the operation history for each electric transport 10. The integrated management device 66 and the individual management device 48 synchronize the operation history for each electric transport 10. The individual management device 48 displays the contents of the operation history for each electric transport 10.

[0086] The battery 12 may have a plurality of small batteries, which may be separable and removable from the vehicle body. The small batteries of the battery 12 may be replaceable with the small batteries of the stationary battery 56. Even if the small batteries of the stationary battery 56 are replaced from the stationary battery 56 to the battery 12 of the electric vehicle 10, the electric motor of the electric vehicle 10 may be driven by the power of the battery 12. Even if the small batteries of the stationary battery 56 are replaced from the stationary battery 56 to the battery 12 of the electric vehicle 10, the vehicle power converter 52 may charge and discharge the battery 12. Even if the small batteries of the battery 12 of the electric vehicle 10 are replaced from the battery 12 of the electric vehicle 10 to the stationary battery 56, the battery power converter 54 may charge and discharge the stationary battery 56.

[0087] The integrated management device 66 stores and manages a daily schedule for each electric transport vehicle 10. The daily schedule is a destination, a travel route, a travel distance, or a combination of two or more of these to be traveled by the electric transport vehicle 10. The daily schedule may be input by any of the electronic device 14, the integrated management device 66, and the individual management device 48. For example, when a resident inputs a daily schedule of any electric transport vehicle 10 to the electronic device 14 by operating the electronic device 14, the electronic device 14 acquires the daily schedule and transmits it to the integrated management device 66, and the integrated management device 66 receives and stores the daily schedule. When a resident inputs a daily schedule of any electric transport vehicle 10 to the individual management device 48 by operating the individual management device 48, the individual management device 48 acquires the daily schedule and transmits it to the integrated management device 66, and the integrated management device 66 receives and stores the daily schedule. When a resident or a representative of the resident operates the integrated management device 66 to input a daily schedule for any one of the electric transport vehicles 10 into the integrated management device 66, the integrated management device 66 acquires and stores the daily schedule.

[0088] The integrated management device 66 may display a daily schedule for each electric transportation vehicle 10. The integrated management device 66 and the individual management devices 48 may synchronize the daily schedule for each electric transportation vehicle 10. The individual management devices 48 may display a daily schedule for each electric transportation vehicle 10. The integrated management device 66 and the electronic device 14 may synchronize the daily schedule for each electric transportation vehicle 10. The electronic device 14 may display a daily schedule for each electric transportation vehicle 10.

[0089] During power generation time periods, i.e., during the daytime, the integrated management device 66 operates the power controllers 50 in the allocation mode. During non-power generation time periods, i.e., at night, the integrated management device 66 operates the power controllers 50 in the swapping mode.

[0090] The integrated management device 66 executes the following process immediately before switching from the allocation mode to the replacement mode. The following process is executed every day.

[0091] The integrated management device 66 determines the set value of the charge amount for each electric transport 10 based on the daily schedule or the operation history of the next day. For example, the farther the destination in the daily schedule of the next day, the larger the set value of the charge amount set for the electric transport 10 corresponding to that daily schedule. For example, the longer the travel route in the daily schedule of the next day, the larger the set value of the charge amount set for the electric transport 10 corresponding to that daily schedule. For example, the longer the travel distance in the daily schedule of the next day, the larger the set value of the charge amount set for the electric transport 10 corresponding to that daily schedule. For example, the higher the operating rate in the operation history, the larger the set value of the charge amount set for the electric transport 10 corresponding to that operation history. For example, the longer the distance from the position farthest from the building 2 to the building 2 in the position data string in the operation history, the larger the set value of the charge amount set for the electric transport 10 corresponding to that operation history. For example, the higher the average value (arithmetic mean value, weighted average value, geometric mean value, harmonic mean value, trim average value, or moving average value) of the travel distance data sequence in the operation history, the higher the set value of the charge amount set in the electric transport 10 corresponding to that operation history. For example, the higher the average value (arithmetic mean value, weighted average value, geometric mean value, harmonic mean value, trim average value, or moving average value) of the speed data sequence in the operation history, the higher the set value of the charge amount set in the electric transport 10 corresponding to that operation history. For example, the higher the average value (arithmetic mean value, weighted average value, geometric mean value, harmonic mean value, trim average value, or moving average value) of the acceleration data sequence in the operation history, the higher the set value of the charge amount set in the electric transport 10 corresponding to that operation history. For example, the lower the average value (arithmetic mean value, weighted average value, geometric mean value, harmonic mean value, trim average value, or moving average value) of the remaining amount data sequence in the operation history, the higher the set value of the charge amount set in the electric transport 10 corresponding to that operation history.

[0092] When the set value of the charging amount is determined based on the daily schedule for the next day, the integrated management device 66 may correct the set value of the charging amount for each electric transport device 10 based on the operation history, or may correct the set value of the charging amount for each electric transport device 10 using a learned model that has been machine-learned from the operation history. When the set value of the charging amount is determined based on the operation history, the integrated management device 66 may correct the set value of the charging amount for each electric transport device 10 based on the past daily schedule, or may correct the set value of the charging amount for each electric transport device 10 using a trained model that has been machine-learned based on the past daily schedule. When the set value of the charging amount is determined based on the next day's daily schedule or operation history, the integrated management device 66 may correct the set value of the charging amount for each electric transport device 10 based on the forecast weather data for the next day, or may correct the set value of the charging amount for each electric transport device 10 based on the weight of the electric transport device 10.

[0093] The sum of the set values ​​of the charge amounts for each electric transport 10 is equal to or less than the sum of the measured values ​​of the charge amounts for each electric transport 10. The set values ​​of the charge amounts are not determined based on the daily schedule or operation history for the next day, and the integrated management device 66 may determine the set values ​​of the charge amounts for all electric transports 10 to be equal to each other. Even in this case, the sum of the set values ​​of the charge amounts for each electric transport 10 is equal to or less than the sum of the measured values ​​of the charge amounts for each electric transport 10.

[0094] Next, the integrated management device 66 subtracts the set charge amount value from the latest measured charge amount value for each electric transport device 10 to obtain the difference between the set value and the measured value. If the difference is negative, it means that the charge amount of the battery 12 of the electric transport device 10 is insufficient. If the difference is positive, it means that the charge amount of the battery 12 of the electric transport device 10 is excessive. If the difference is zero, it means that the charge amount of the battery 12 of the electric transport device 10 is appropriate.

[0095] Thereafter, when the non-power generation time period arrives, the integrated management device 66 operates the power controller 50 in the swap mode. At this time, the integrated management device 66 transmits the set value of the charge amount for each electric vehicle 10 to the power controller 50, and the power controller 50 receives and temporarily stores the set value of the charge amount for each electric vehicle 10.

[0096] In the swap mode, the power controller 50 discharges the battery 12 of the electric vehicle 10 through the power converter for transport 52 connected to the electric vehicle 10 with a positive difference, and receives a supply of power from the power converter for transport 52. The power controller 50 supplies the received power to the power converter for transport 52 connected to the electric vehicle 10 with a negative difference, and charges the battery 12 of the electric vehicle 10 through the power converter for transport 52. As a result, the charging power of the battery 12 of the electric vehicle 10 with a positive difference is transferred to the battery 12 of the electric vehicle 10 with a negative difference.

[0097] During the transfer of the charging power, the power controller 50 measures and monitors the charge remaining in the battery 12 of the electric vehicle 10 connected to the power converter for the vehicle 52 through the power converter for the vehicle 52. When the measured value of the charge amount of the battery 12 of the electric vehicle 10 reaches a set value, the power controller 50 stops charging or discharging the battery 12. The power controller 50 continues to operate in the swap mode until charging or discharging of the batteries 12 of all the electric vehicles 10 connected to the power converter for the vehicle 52 is stopped. If the sum of the set values ​​of the charge amount of each electric vehicle 10 is less than the sum of the measured values ​​of the charge amount of each electric vehicle 10, the power controller 50 stops discharging the battery 12 to be discharged last. Until then, the power controller 50 converts the power received from the battery 12 to be discharged through the power converter for the vehicle 52 into AC and supplies it to the main switchboard 36. The power is consumed by the load 48 of the private area 4 or the load 68 of the common area 5, or both. The amount of power supplied to the distribution board 42 of the exclusive unit 4 from the discharging battery 12 through the main distribution board 36, the power controller 50, and the power converter for the transport 52 may be set according to the history of the use of the electric transport 10 by the resident of the exclusive unit 4. Specifically, as the frequency or duration of use of the electric transport 10 by the resident of the exclusive unit 4 increases, the amount of power supplied to the distribution board 42 of the exclusive unit 4 from the discharging battery 12 through the main distribution board 36, the power controller 50, and the power converter for the transport 52 decreases. The frequency or duration of use of the electric transport 10 by the resident of each exclusive unit 4 is measured by the electronic device 14 and managed by the integrated management device 66. The amount of power supplied to the distribution board 42 of the exclusive unit 4 from the discharging battery 12 through the main distribution board 36, the power controller 50, and the power converter for the transport 52 is realized by the individual management device 46 controlling the exclusive part panel 42 under the command of the integrated management device 66.

[0098] <2. Summary> (1) During the power generation time of the natural energy power generation device 8, that is, during the daytime, the power generated by the natural energy power generation device 8 is distributed to the batteries 12 of the multiple electric vehicles 10 parked in the parking lot 6. During the non-power generation time of the natural energy power generation device 8, that is, during the nighttime, the charging power is switched between the batteries 12 of the multiple electric vehicles 10. Therefore, even if the electric vehicle 10 is not parked in the parking lot 6 during the day, if the electric vehicle 10 returns to the parking lot 6 at night, the charging power to the battery 12 of the electric vehicle 10 is generated by the natural energy power generation device 8. Therefore, the power generated by the natural energy power generation device 8 contributes to charging the batteries 12 of many electric vehicles 10.

[0099] (2) During non-power generation time periods, the battery 12 of the electric transport device 10 is charged or discharged until the charge level of the battery 12 reaches a set value determined based on the daily schedule for the next day, so that the charge level of the battery 12 is appropriate, neither too much nor too little.

[0100] (3) During non-power generation times, the battery 12 of the electric transport vehicle 10 is charged or discharged until the charge level of the battery 12 reaches a set value determined based on the destination, travel route, or travel distance, so that the charge level of the battery 12 is appropriate, neither too much nor too little.

[0101] (4) During non-power generation time periods, the battery 12 of the electric transport device 10 is charged or discharged until the charge amount of the battery 12 reaches a set value determined based on the operating history. Therefore, the past operating trends of the electric transport device 10 are reflected in the charge amount of the battery 12, and the charge amount of the battery 12 is appropriate, neither excessive nor insufficient.

[0102] (5) The battery 12 of the electric transport device 10 is charged or discharged until the charge level of the battery 12 reaches a set value determined based on the operating rate, the travel distance data sequence, the speed data sequence, the acceleration data sequence or the remaining charge data sequence. Therefore, the past operating trends of the electric transport device 10 are reflected in the charge level of the battery 12, and the charge level of the battery 12 is appropriate, neither too much nor too little.

[0103] (6) The individual management device 46 displays the measured charge amount of each of the batteries 12 of the multiple electric transport devices 10. Therefore, the resident can know the charge amount of the batteries 12 of the electric transport devices 10 while staying in the private area 4 without having to move from the private area 4 to the electric transport devices 10.

[0104] (7) The natural energy power generation device 8 is a solar power generation panel, the power generation time period is the daytime, and the non-power generation time period is the nighttime. Residents tend to go out in the electric transport 10 during the day. Even if the electric transport 10 is not parked in the parking lot 6 during the day, if the electric transport 10 returns to the parking lot 6 at night, the charging power to the battery 12 of the electric transport 10 is generated by the natural energy power generation device 8. Therefore, the power generation time period and the non-power generation time period are compatible with the rhythm of human life, and the power generated by the natural energy power generation device 8 contributes to charging many electric transports 10.

[0105] (8) Because the building 2 is an apartment building, the rooftop of the building 2 is spacious. This contributes to the increase in the scale and power generation capacity of the natural energy power generation device 8. This increases the feasibility of the power generated by the natural energy power generation device 8 being able to cover the charging of the electric vehicle 10.

[0106] (9) Since the electricity generated by the natural energy power generation device 8 is used to charge the electric vehicle 10, this energy utilization system 1 contributes to the promotion of carbon neutrality, the realization of a decarbonized society, and the achievement of the Sustainable Development Goals (SDGs). [Explanation of symbols]

[0107] 1 Energy Utilization System 2. Building (apartment building) 4 Private area 6. Parking 8. Natural energy power generation equipment 10 Electric transport aircraft 12 Battery 46 Individual management device 50 Power Controller 66 Integrated management device

Claims

1. An energy utilization system, comprising: An apartment building to be constructed on the site; A natural energy power generation device that is installed on the site and generates electric power from natural energy; A parking lot installed on the premises; a power controller that distributes the power generated by the natural energy power generation device to batteries of a plurality of electric vehicles parked in the parking lot during a power generation time period of the natural energy power generation device, and switches charging power between the batteries of the plurality of electric vehicles during a non-power generation time period of the natural energy power generation device; Equipped with The power controller alternates charging power among the batteries of the plurality of electric vehicles until a charge amount of each of the batteries of the plurality of electric vehicles reaches a set value determined based on a daily schedule for each of the plurality of electric vehicles for the next day. An energy utilization system characterized by:

2. In the energy utilization system according to claim 1, The daily schedule is a destination, a travel route, or a travel distance to be traveled by the electric vehicle. An energy utilization system characterized by:

3. The energy utilization system according to claim 1 or 2, A management device that manages a daily schedule for each of the plurality of electric transport machines and determines a setting value based on the daily schedule for the next day for each of the plurality of electric transport machines. An energy utilization system comprising:

4. An energy utilization system, comprising: An apartment building to be constructed on the site; A natural energy power generation device that is installed on the site and generates electric power from natural energy; A parking lot installed on the premises; a power controller that distributes the power generated by the natural energy power generation device to batteries of a plurality of electric vehicles parked in the parking lot during a power generation time period of the natural energy power generation device, and switches charging power between the batteries of the plurality of electric vehicles during a non-power generation time period of the natural energy power generation device; Equipped with The power controller alternates charging power between the batteries of the plurality of electric vehicles until the charge amount of each of the batteries of the plurality of electric vehicles reaches a set value determined based on the operation history of each of the plurality of electric vehicles. An energy utilization system characterized by:

5. The energy utilization system according to claim 4, The operation history is an operating rate, a travel distance data string in which the travel distance of the electric transport vehicle is arranged in a daily chronological order, a speed data string in which the travel speed of the electric transport vehicle is arranged in a chronological order, an acceleration data string in which the acceleration of the electric transport vehicle is arranged in a chronological order, or a remaining charge data string in which the measured value of the remaining charge amount in the battery of the electric transport vehicle is arranged in a chronological order. An energy utilization system characterized by:

6. In the energy utilization system according to claim 4 or 5, A management device that manages the operation history of each of the plurality of electric transport machines and determines a setting value based on the operation history of each of the plurality of electric transport machines. An energy utilization system comprising:

7. In the energy utilization system according to claim 1, 2, 4 or 5, A plurality of management devices are provided in a plurality of private areas of the housing complex, The management device displays a measured value of the charge amount of each of the batteries of the plurality of electric transport vehicles. An energy utilization system characterized by:

8. An energy utilization system, comprising: An apartment building to be constructed on the site; A natural energy power generation device that is installed on the site and generates electric power from natural energy; A parking lot installed on the premises; a power controller that distributes the power generated by the natural energy power generation device to batteries of a plurality of electric vehicles parked in the parking lot during a power generation time period of the natural energy power generation device, and switches charging power between the batteries of the plurality of electric vehicles during a non-power generation time period of the natural energy power generation device; A plurality of management devices are installed in a plurality of private areas of the housing complex, The management device displays a measured value of the charge amount of each of the batteries of the plurality of electric transport vehicles. An energy utilization system characterized by:

9. In the energy utilization system according to claim 1, 2, 4 or 5, The natural energy power generation device is a solar panel, the power generation time period is daytime, and the non-power generation time period is nighttime. An energy utilization system characterized by:

10. In the energy utilization system according to claim 1, 2, 4 or 5, The natural energy power generation device is installed on the roof of the housing complex. An energy utilization system characterized by:

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