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) 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 vehicles (10) parked in the parking lot (6) during the power generation hours of the natural energy power generation device (8), and switches charged power between the batteries (12) of the multiple electric vehicles (10) during the power generation hours 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 used in an apartment building equipped with solar cell modules. A power conditioner in the charge / discharge control system supplies power from a grid power supply and power generated by the solar cell modules to each residential section and common areas. The power conditioner supplies power from the grid power supply and power generated by the solar cell modules to a storage battery. At night, the power conditioner supplies the discharged power of the storage battery to each residential section. A charging / discharging device in the charge / discharge control system charges the discharged power of the storage battery to an electric vehicle battery, and vice versa. The power conditioner or charging / discharging device does not distribute the power generated by the solar cell modules to multiple electric vehicles. The power conditioner or charging / discharging device does not transfer power between multiple electric vehicles. During the day, when the solar cell modules generate power, many electric vehicles are in use, so the batteries of the electric vehicles in use are not charged, and only unused electric vehicles are charged. Even though many electric vehicles return to the parking lot of the apartment complex at night, the solar cell modules do not generate electricity, so the discharged power from the storage battery alone is not enough to charge the electric vehicles and cover the power consumption of each residential area, and power from the grid power supply is also used to charge 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] Japanese Patent Application Publication No. 2023-146767 Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, 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. [Means for solving the problem]

[0005] The following reference numerals 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 electricity 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 that switches charging 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); An energy utilization system (1) is provided, which is characterized by comprising:

[0007] According to claim 1 as described above, during the 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 vehicles (10) parked in the parking lot (6). During the non-power generation time period of the natural energy power generation device (8), the charging power is exchanged among 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 power generation time period, if the electric vehicle (10) returns to the parking lot (6) during the non-power generation time period, the charging power to the battery (12) of the electric vehicle (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 vehicles (10).

[0008] According to claim 2, In the energy utilization system (1) according to claim 1, The power controller (50) alternates 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. An energy utilization system (1) is provided.

[0009] According to claim 2 as described above, 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 neither excessive nor insufficient, and is therefore appropriate.

[0010] According to claim 3, In the energy utilization system (1) according to claim 2, The daily schedule includes destinations, travel routes, or travel distances to be traveled by the electric vehicle (10). An energy utilization system (1) is provided.

[0011] According to claim 3 as described above, the battery (12) of the electric transport (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 neither excessive nor insufficient, and is therefore appropriate.

[0012] According to claim 4, In the energy utilization system (1) according to claim 2 or 3, a management device (66) that manages the daily schedules of the plurality of electric transports (10) and determines setting values ​​based on the daily schedules of the following day of the plurality of electric transports (10); An energy utilization system (1) is provided, which is characterized by comprising:

[0013] According to the fourth aspect of the present invention, the daily schedules of the plurality of electric transport machines (10) are managed by the management device (66).

[0014] According to claim 5, In the energy utilization system (1) according to claim 1, 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] According to claim 5 as described above, the battery (12) of the electric transport (10) is charged or discharged until the charge amount of the battery (12) reaches a set value determined based on the operation history. Therefore, the past operation tendency of the electric transport (10) is reflected in the charge amount of the battery (12), and the charge amount of the battery (12) becomes appropriate, neither excessive nor insufficient.

[0016] According to claim 6, In the energy utilization system (1) according to claim 5, The operation history is an operating rate, a travel distance data sequence in which the travel distance of the electric transport (10) is arranged in a chronological order on a daily basis, a speed data sequence in which the travel speed of the electric transport (10) is arranged in a chronological order, an acceleration data sequence in which the acceleration of the electric transport (10) is arranged in a chronological order, or a remaining charge data sequence in which the measured values ​​of the remaining charge amount in the battery (12) of the electric transport (10) are arranged in a chronological order. An energy utilization system (1) is provided.

[0017] According to claim 6 as described above, the battery (12) of the electric transport (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 operation tendency of the electric transport (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.

[0018] According to claim 7, The energy utilization system (1) according to claim 5 or 6, a management device (66) that manages the operation history of each of the plurality of electric transports (10) and determines a set value based on the operation history of each of the plurality of electric transports (10); An energy utilization system (1) is provided, which is characterized by comprising:

[0019] According to claim 7, the management device (66) manages the operation history of each of the plurality of electric transports (10).

[0020] According to claim 8, In the energy utilization system (1) according to claim 1, 2, 3, 5 or 6, a plurality of management devices (46) installed in a plurality of private areas (4) of the apartment building (2), 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] According to claim 8 as described above, the resident can know the charge amount of the electric transport (10) while staying in the private area (4) without having to move from the private area (4) to the electric transport (10).

[0022] According to claim 9, In the energy utilization system (1) according to claim 1, 2, 3, 5 or 6, 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, 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 electric power that is charged into the battery (12) of the electric transport (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).

[0024] According to claim 10, In the energy utilization system (1) according to claim 1, 2, 3, 5 or 6, 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 system (8). This increases the possibility that the power generated by the natural energy power generation system (8) can cover the charging of the electric transport vehicle (10). [Effects of the Invention]

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

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

[0028] Hereinafter, embodiments will be described with reference to the drawings. 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. Because the drawings are provided for illustrative purposes only, the scope of the present invention is not limited to the examples 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 panel 36, multiple exclusive area panel 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 panel 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 includes, 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 to construct 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 commonly known as an apartment building. Building 2 may have a basement. The framework of building 2 is made of reinforced concrete, steel-framed 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-framed reinforced concrete, and an upper floor made of wood built on top of that. Building 2 may be a condominium building where condominium ownership is established under the Act on Condominium Ownership, etc., or it may be a single-building building where condominium ownership is not established. A condominium building is also called a condominium for sale, and a single-building building is also called a rental apartment.

[0033] The building 2 has multiple private areas 4 and common areas 5 other than the private areas 4. The private areas 4 are, for example, private dwelling units separated by partition walls. The common areas 5 include an entrance, a common corridor, an elevator hall, an elevator, a common staircase, a common room, a garbage 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 roof of the building 2. Because the building 2 is an apartment building, the roof 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 the 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, as in 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 restriction on the type of parking lot 6, but in the example shown in Figure 1, the parking lot 6 is a flat parking lot installed outside the building 2. The parking lot 6 may also 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 also 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, all or part of the natural energy power generation device 8 may be installed on the roof of the parking lot 6.

[0039] The parking lot 6 is divided into multiple parking areas and multiple bicycle parking areas, each of which can accommodate one automobile and one motorcycle. Both automobiles and motorcycles are types of transport aircraft. The parking lot 6 may have one or more parking areas, each of which can accommodate one airborne transport aircraft. Airborne transport aircraft are multi-wing aircraft capable of hovering and are also known as drones. Airborne transport aircraft may be manned or unmanned. The parking areas, bicycle parking areas, and aircraft parking areas are collectively referred to as the aircraft parking area. The aircraft parking area may be rented to an outside party, in which case the resident, management association, or lessor of the building 2 may receive money or its equivalent from the lessee of the aircraft parking area. The aircraft parking area is classified into an electric aircraft parking area and a general aircraft parking area. The electric aircraft parking area can be used exclusively to park an electric aircraft 10. The general transport aircraft parking area can accommodate not only electric transport aircraft other than the electric transport aircraft 10, but also non-electric transport aircraft. 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 the power generation hours, the residents of 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 the non-power generation hours, the residents of 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 on the premises but outside the building 2. The power receiving equipment 34 includes 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 distribution board 36.

[0042] The main meter 32 periodically measures the power and amount of power supplied from the system power supply 30 to the power receiving equipment 34. The main meter 32 may also periodically measure the power and amount of power supplied from the power receiving equipment 34 to the main distribution board 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 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 ​​for the power and amount of power to the integrated management device 66 each time it measures the power and amount of power.

[0043] The main distribution panel 36 is installed in the common area inside the building 2. The main distribution panel 36 includes a transformer, a switchgear, a relay, a disconnecting switch, a circuit breaker, a transformer, a switching device, etc. The main distribution panel 36 transforms the power supplied from the power receiving equipment 34 and distributes the transformed power to the common area panel board 62 and the exclusive area panel board 42. The main distribution panel 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 includes a power panel and a light panel. 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 distribution board 36 to the common area panel board 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 the power and the amount of power to the central management device 66 every time it measures the power and the amount of power.

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

[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 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 measured values ​​of power and amount of power to the individual management device 48 each time it measures 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 may be a general-purpose computer system or a dedicated computer system. A general-purpose computer system refers to a computer system, such as a mobile phone, smartphone, tablet computer, laptop computer, or desktop computer, on which a general-purpose operating system (OS) is installed. Examples of the general-purpose OS include Windows (registered trademark), Android (registered trademark), iOS (registered trademark), macOS (registered trademark), Linux (registered trademark), and Unix (registered trademark). The general-purpose OS has installed therein a program for monitoring, managing, controlling, power monitoring, power management, and power control of the load 48 inside the private area 4. A dedicated computer system refers to a computer system installed on the wall of the private area 4 or the like, and specialized for the functions of monitoring, managing, controlling, power monitoring, power management, and power control of the load 48 inside the private area 4. For example, a Home Energy Management System (HEMS) controller is an example of 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 values ​​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 consumed from the exclusive unit meter 44, it stores the measured value of the amount of power consumed in chronological order. As a result, the individual management device 48 accumulates a data string in which the measured values ​​of the total amount of power consumed by 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 consumed by the exclusive unit 4 from the exclusive unit meter 44, it updates and displays the latest measured value of the total amount of power consumed by the exclusive unit 4. The individual management device 48 displays the data string of the total amount of power consumed by the exclusive unit 4 in a graph. The graph shows the progress of the measured value of the total amount of power consumed by 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 battery power converters 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 on each side of the electric vehicle parking area 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 distribution board 36. The power controller 50 and the main distribution board 36 exchange AC power with each other.

[0055] The power controller 50 is a power conditioner including a DC / DC converter, a DC / AC converter, an AC / DC converter, a switch, and a control circuit. During power generation hours, i.e., during the daytime, the power controller 50 operates in distribution mode. In distribution mode, the power controller 50 adjusts the voltage of the DC power supplied from the renewable energy power generation device 8 using a DC / DC converter and distributes the adjusted DC power to the battery power converter 54 and the vehicle power converter 52. As mentioned above, during power generation hours, there tends to be fewer electric vehicles 10 remaining in the parking lot 6. During the daytime, an outsider may park their own electric vehicle in the vehicle parking area, connect the electric vehicle 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, a resident, management association, or lessor 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 panel 36. The surplus power refers to the amount of power that is in excess of the power generated by the natural energy power generation system 8 when it exceeds the charging power of the battery power converter 54 and the transport power converter 52. The main distribution panel 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 panel 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 power shortage from the main distribution panel 36. The power shortage refers to the shortage when the power generated by the natural energy power generation system 8 falls below the charging power of the battery power converter 54 and the transport power converter 52. The power controller 50 converts the power shortage supplied from the main distribution panel 36 to direct current and distributes it to the battery power converter 54 and the transport power converter 52.

[0058] During periods when no power is being generated, i.e., at night, the power controller 50 operates in a swap mode. In the swap 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 other transport power converters 52. The swap mode will be described in detail later.

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

[0060] The power controller 50 periodically measures the amount of 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 value of the amount of charge to the integrated management device 66 each time the amount of charge 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, etc. 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 its installation location. The stationary battery 56 has a plurality of small batteries, which may be separable and removable from their installation location. Casters may be attached to the small batteries of the stationary battery 56 to make them easier to transport. 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 vehicle power converter 52 is a power conditioner including a bidirectional DC / DC converter, a plug-equipped charge / discharge cable, and a control circuit. When the plug-equipped charge / discharge cable is connected to the plug of the electric vehicle 10, the vehicle power converter 52 is connected to the battery 12 of the electric vehicle 10, and the vehicle power converter 52 charges and discharges the battery 12 of the electric vehicle 10. When charging the battery 12 of the electric vehicle 10, the vehicle power converter 52 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 vehicle 10. When discharging the battery 12 of the electric vehicle 10, the vehicle power converter 52 adjusts the voltage of the DC power discharged from the battery 12 of the electric vehicle 10 using the bidirectional DC / DC converter and supplies the adjusted DC power to the power controller 50.

[0064] The vehicle power converter 52 may have a contactless power supply 53 installed in the electric vehicle parking area instead of a plug-equipped charging / discharging cable. When the electric vehicle 10 is parked on the contactless power supply 53, the vehicle power converter 52 contactlessly charges and discharges the battery 12 of the electric vehicle 10. The method of transmitting and receiving power between the contactless power supply 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 provided by the vehicle power converter 52 may be one or more, and the number of electric vehicles 10 that the vehicle power converter 52 can charge and discharge is equal to the number of plug-equipped charging cables. When the vehicle power converter 52 has multiple plug-equipped charging cables, the plug-equipped charging cables are connected in parallel to the bidirectional DC / DC converter. The vehicle power converter 52 may be connected in series to the batteries 12 of multiple electric vehicles 10, and the vehicle 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 aircraft power converter 52 (excluding the plug-equipped charging cable or the contactless power supply 53) may be integrated into one unit. A device in which these components are integrated 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 to outsiders. When the electric transport 10 is rented out to an outsider, the resident, 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 its equivalent from the lessee of the electric transport 10. The electric transport 10 may be shared by residents of the building 2. The electric transport 10 may be exclusively owned by 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 rechargeable battery 12, an electric motor driven by the power of the battery 12, a transport body that runs or flies using the power of the electric motor, and a control device. The electric transport 10 may also be a plug-in hybrid transport that further has a prime mover.

[0070] The battery 12 may include multiple 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 program may be implemented, or a small battery rental program may be implemented. Casters may be attached to the small batteries in the battery 12 to make them easier to transport. The small batteries in the battery 12 may be interchangeable with the small batteries in the stationary battery 56. Even if the small batteries in the stationary battery 56 are replaced with the battery 12 of the electric transport 10, the electric motor of the electric transport 10 can still 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 vehicle 10, the vehicle power converter 52 can charge and discharge the battery 12. Even if the small battery of the battery 12 of the electric vehicle 10 is replaced from the battery 12 of the electric vehicle 10 to the stationary battery 56, the battery power converter 54 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, for example, in a management room in the common area 5. 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 configured from a computer system. The integrated management device 66 may be configured from a single computer system, or may be configured from 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 values ​​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 10. Each time the integrated management device 66 receives a measured value of the charge amount from the transport 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 value 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 consumed from the main meter 32, it stores the measured value of the amount of power consumed 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 consumed from the common area meter 64, it stores the measured value of the amount of power consumed 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 values ​​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 devices 48 synchronize the data string of the measured charge amount for each electric vehicle 10. The individual management devices 48 display 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 devices 48 display the most recent measured charge amount.

[0081] The electric transport 10 has electronic equipment 14, such as a navigation device, installed within the vehicle body. The electronic equipment 14 may be detachable from the vehicle 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 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 VPN (Virtual Private Network) 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 determining the current position of the electric vehicle 10 based on signals received from multiple 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 vehicle 10 on a map. The electronic device 14 has a function of communicating with a control device of the electric vehicle 10 and obtaining a measured value of the amount of charge remaining in the battery 12 from the control device of the electric vehicle 10. The electronic device 14 has a function of searching for a route from the current position of the electric vehicle 10 to a destination. The route search may take into account the amount of charge in the battery 12 at the time of the search. When searching for a route, the electronic device 14 may calculate the amount of power consumption required for the electric vehicle 10 to travel along the route. The electronic device 14 has a function of displaying a route from the current position of the electric 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 where the battery 12 of the electric vehicle 10 can be charged or discharged. In this case, the electronic device 14 may set a route point based on a measured 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 includes a position data sequence listing the positions of the electric transport 10 in chronological order. The operation history may include a travel distance data sequence listing the distance traveled by the electric transport 10 in a day in chronological order. The operation history may include a speed data sequence listing the travel speed of the electric transport 10 in chronological order. The operation history may include an acceleration data sequence listing the acceleration of the electric transport 10 in chronological order. The operation history may include a remaining charge data sequence listing the measured amount of charge remaining in the battery 12 of the electric transport 10 in chronological order. The operation history may include an availability rate of the electric transport 10. The availability rate is the value obtained by dividing the actual operating hours of the electric transport 10 per day by 24 hours. The actual operating hours of the electric transport 10 per day may be an average value of the past, 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 the operation history to the integrated management device 66. The difference in the operation history refers to the difference between the operation history before the update and the operation history after the update when the operation history is updated. The integrated management device 66 accumulates the operation history by storing the difference in the 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 include multiple 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 with the battery 12 of the electric vehicle 10, the electric motor of the electric vehicle 10 can be driven by the power of the battery 12. Even if the small batteries of the stationary battery 56 are replaced with the battery 12 of the electric vehicle 10, the vehicle power converter 52 can charge and discharge the battery 12. Even if the small batteries of the stationary battery 56 are replaced with the battery 12 of the electric vehicle 10, the battery power converter 54 can charge and discharge the stationary battery 56.

[0087] The integrated management device 66 stores and manages a daily schedule for each electric transportation device 10. The daily schedule includes planned destinations, travel routes, and travel distances to be traveled by the electric transportation device 10, or a combination of two or more of these. The daily schedule may be input using any of the electronic devices 14, the integrated management device 66, and the individual management devices 48. For example, when a resident operates the electronic device 14 to input a daily schedule for any electric transportation device 10 into the electronic device 14, the electronic device 14 acquires the daily schedule and transmits it to the integrated management device 66, which then receives and stores the daily schedule. When a resident operates the individual management device 48 to input a daily schedule for any electric transportation device 10 into the individual management device 48, the individual management device 48 acquires the daily schedule and transmits it to the integrated management device 66, which then 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 of the electric transporters 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 transport 10. The integrated management device 66 and the individual management devices 48 may synchronize the daily schedule for each electric transport 10. The individual management devices 48 may display a daily schedule for each electric transport 10. The integrated management device 66 and the electronic device 14 may synchronize the daily schedule for each electric transport 10. The electronic device 14 may display a daily schedule for each electric transport 10.

[0089] During power generation hours, i.e., during the daytime, the integrated management device 66 operates the power controllers 50 in the distribution mode. During non-power generation hours, i.e., at night, the integrated management device 66 operates the power controllers 50 in the swap 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 vehicle 10 based on the daily schedule for the next day or the operation history. For example, the farther the destination in the daily schedule for the next day, the larger the set value of the charge amount set for the electric vehicle 10 corresponding to that daily schedule. For example, the longer the travel route in the daily schedule for the next day, the larger the set value of the charge amount set for the electric vehicle 10 corresponding to that daily schedule. For example, the longer the travel distance in the daily schedule for the next day, the larger the set value of the charge amount set for the electric vehicle 10 corresponding to that daily schedule. For example, the higher the utilization rate in the operation history, the larger the set value of the charge amount set for the electric vehicle 10 corresponding to that operation history. For example, the longer the distance from the farthest position from building 2 to building 2 in the position data sequence in the operation history, the larger the set value of the charge amount set for the electric vehicle 10 corresponding to that operation history. For example, the higher the average value (arithmetic mean value, weighted mean value, geometric mean value, harmonic mean value, trim mean 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 mean value, geometric mean value, harmonic mean value, trim mean 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 mean value, geometric mean value, harmonic mean value, trim mean 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 mean value, geometric mean value, harmonic mean value, trim mean 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 10 based on the operation history, or may correct the set value of the charging amount for each electric transport 10 using a learned model that has been machine-learned based on the operation history. When the set value of the charge amount is determined based on the operation history, the integrated management device 66 may correct the set value of the charge amount for each electric transport 10 based on past daily schedules, or may correct the set value of the charge amount for each electric transport 10 using a trained model that has been machine-learned based on past daily schedules. When the set value of the charging amount is determined based on the daily schedule or operation history for the next day, the integrated management device 66 may correct the set value of the charging amount for each electric transport 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 10 based on the weight of the electric transport 10.

[0093] The sum of the set values ​​of the charge amounts for each electric transport 10 is less than or equal to 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 for the next day or the operation history, 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 less than or equal to 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 most recent measured charge amount value for each electric transport 10 to determine the difference between the set value and the measured value. If the difference is negative, it means that the battery 12 of the electric transport 10 is not sufficiently charged. If the difference is positive, it means that the battery 12 of the electric transport 10 is overcharged. If the difference is zero, it means that the battery 12 of the electric transport 10 is properly charged.

[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 vehicle power converter 52 connected to the electric vehicle 10 with a positive difference, and receives a supply of power from the vehicle power converter 52. The power controller 50 supplies the received power to the vehicle power converter 52 connected to the electric vehicle 10 with a negative difference, and charges the battery 12 of that electric vehicle 10 through the vehicle power converter 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] While the charging power is being transferred, the power controller 50 measures and monitors the remaining charge in the batteries 12 of the electric vehicles 10 connected to the vehicle power converter 52 through the vehicle power converter 52. When the measured charge value of the battery 12 of the electric vehicle 10 reaches a set value, the power controller 50 stops charging or discharging that battery 12. The power controller 50 continues to operate in the swap mode until charging or discharging of the batteries 12 of all electric vehicles 10 connected to the vehicle power converter 52 has stopped. If the sum of the set charge values ​​for each electric vehicle 10 is less than the sum of the measured charge values ​​for each electric vehicle 10, the power controller 50 stops discharging the battery 12 being discharged last. Until then, the power controller 50 converts the power received from the battery 12 being discharged through the vehicle power converter 52 into AC and supplies it to the main distribution board 36. The power is consumed by the loads 48 in the private area 4, the loads 68 in the common area 5, or both. The amount of power that the distribution board 42 of each exclusive unit 4 receives from the discharging battery 12 via the main distribution board 36, the power controller 50, and the vehicle power converter 52 may be set according to the history of use of the electric vehicle 10 by the resident of that exclusive unit 4. Specifically, as the frequency or duration of use of the electric vehicle 10 by the resident of the exclusive unit 4 increases, the amount of power that the distribution board 42 of that exclusive unit 4 receives from the discharging battery 12 via the main distribution board 36, the power controller 50, and the vehicle power converter 52 decreases. The frequency or duration of use of the electric vehicle 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 that the distribution board 42 of each exclusive unit 4 receives from the discharging battery 12 via the main distribution board 36, the power controller 50, and the vehicle power converter 52 is realized by the individual management device 46 controlling the exclusive unit panel 42 under instructions from the integrated management device 66.

[0098] <2. Summary> (1) During the power generation time of the natural energy power generation device 8, i.e., during the daytime, the power generated by the natural energy power generation device 8 is distributed to the batteries 12 of multiple electric vehicles 10 parked in the parking lot 6. During the time when the natural energy power generation device 8 is not generating power, i.e., during the nighttime, the charging power is swapped among the batteries 12 of multiple electric vehicles 10. Therefore, even if an electric vehicle 10 is not parked in the parking lot 6 during the day, if that electric vehicle 10 returns to the parking lot 6 at night, the charging power to the battery 12 of that 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 hours, 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 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 times, the battery 12 of the electric transport 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 10 are 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.

[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, travel distance data sequence, speed data sequence, acceleration data sequence, or remaining capacity 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 neither excessive nor insufficient.

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

[0104] (7) The natural energy power generation device 8 is a solar power generation panel, and the power generation time period is daytime, and the non-power generation time period is nighttime. Residents tend to go out in the electric vehicle 10 during the daytime. Even if the electric vehicle 10 is not parked in the parking lot 6 during the daytime, if the electric vehicle 10 returns to the parking lot 6 at night, the power charged to the battery 12 of the electric vehicle 10 is generated by the natural energy power generation device 8. Therefore, the power generation time period and 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 vehicles 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 system 8. This increases the possibility that the power generated by the natural energy power generation system 8 will 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 promoting carbon neutrality, realizing a decarbonized society, and achieving the Sustainable Development Goals (SDGs). [Explanation of symbols]

[0107] 1 Energy utilization system 2. Building (apartment) 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, An apartment complex to be built on the site; a natural energy power generation device installed on the site and generating electricity 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 that switches charging power among the batteries of the plurality of electric vehicles during a non-power generation time period of the natural energy power generation device; An energy utilization system comprising:

2. The energy utilization system according to claim 1, The power controller alternates charging power among 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 daily schedule of each of the plurality of electric vehicles for the next day. An energy utilization system characterized by:

3. The energy utilization system according to claim 2, 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:

4. The energy utilization system according to claim 2 or 3, a management device that manages the daily schedules of the plurality of electric transport machines and determines setting values ​​based on the daily schedules of the following day of the plurality of electric transport machines; An energy utilization system comprising:

5. The energy utilization system according to claim 1, The power controller alternates charging power among the batteries of the plurality of electric transports until the charge amount of each of the batteries of the plurality of electric transports reaches a set value determined based on the operation history of each of the plurality of electric transports. An energy utilization system characterized by:

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

7. The energy utilization system according to claim 5 or 6, a management device for managing the operation history of each of the plurality of electric transport machines and determining a setting value based on the operation history of each of the plurality of electric transport machines; An energy utilization system comprising:

8. The energy utilization system according to claim 1, 2, 3, 5 or 6, a plurality of management devices installed in a plurality of private areas of the apartment building, 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. The energy utilization system according to claim 1, 2, 3, 5 or 6, The natural energy power generation device 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 characterized by:

10. The energy utilization system according to claim 1, 2, 3, 5 or 6, The natural energy power generation device is installed on the roof of the apartment building. An energy utilization system characterized by:

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