Power supply control device, power supply control program, and power supply control method

Abstract

To prevent an amount of power supplied to a power system from deviating from a plan.SOLUTION: A power supply control device executes at least one of: charge processing of monitoring a difference between an amount of planned power which is an amount of power planned in advance to be supplied by a building capable of supplying at least one of power generated by a photovoltaic power generation panel and power stored in a storage battery to a power system to the power system and an amount of actually used power which is an amount of power obtained by subtracting an amount of power consumed in the building from the amount of power generated by the photovoltaic power generation panel, and when the amount of actually used power exceeds the amount of planned power by more than a predetermined amount of first power, controlling a facility attached to the storage battery to charge the storage battery with at least part of the difference; and discharge processing of, when the amount of actually used power falls below the amount of planned power by more than a predetermined amount of second power, controlling the facility attached to the storage battery to supply an amount of power equal to the at least part of the difference to the power system.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a power supply control device, a power supply control program, and a power supply control method. [Background technology]

[0002] In recent years, in order to mitigate global warming caused by carbon dioxide emissions, the use of electricity generated without using fossil fuels has been attracting attention. One example of such electricity is electricity generated using solar panels. Furthermore, electricity generated using solar panels has the advantage that it can be shared among buildings that have solar panels installed, thereby reducing the burden on the power grid and making it easy to use efficiently.

[0003] However, when electricity generated using solar panels is supplied to a power grid, the amount to be supplied to the power grid must be planned in advance for a predetermined period of time. This plan is also notified to an organization that manages the interchange of power through the power grid. One example of a technology for achieving such a plan is a power management device disclosed in Patent Document 1. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-093719

[0005] The power management device includes a customer facility classification unit and a power control unit. The customer facility classification unit classifies a plurality of customer facilities in a power management area so that the facilities belong to at least one of a first customer facility group and a second customer facility group. The power control unit controls power equipment in customer facilities belonging to the first customer facility group so as to achieve a power generation plan formulated for the power management area, and controls power equipment in customer facilities belonging to the second customer facility group so as to achieve a demand plan formulated for the power management area.

[0006] However, the above-mentioned power management device may not be able to prevent the amount of power supplied to the power grid from deviating from the plan due to changes in weather, changes in the amount of power consumed by buildings where solar panels are installed, etc. Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a power supply control device, a power supply control program, and a power supply control method that can prevent the amount of power supplied to a power grid from deviating from the plan. [Means for solving the problem]

[0008] One aspect of the present invention is a monitoring unit that monitors the difference between a planned amount of power, which is the amount of power that a building that is installed with photovoltaic panels and is capable of supplying at least one of the power generated by the photovoltaic panels and the power stored in a storage battery to a power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the photovoltaic panels minus the amount of power consumed by the building; a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; a planning unit that, when the charging process is executed, includes an amount of power charged to the storage battery in the charging process in the planned power amount after the charging process is executed; The power supply control device is provided with:

[0010] One aspect of the present invention is a power supply control device that includes: a monitoring unit that monitors the difference between a planned power amount, which is the amount of power that a building that is installed with solar power generation panels and is capable of supplying at least one of the power generated by the solar power generation panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance; and an actual power amount, which is the amount of power generated by the solar power generation panels minus the amount of power consumed by the building; a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference to the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount; and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; and a planning unit that, when the discharging process is executed, subtracts the amount of power discharged in the discharging process from the planned power amount after the discharging process is executed.

[0011] Furthermore, in the above-mentioned power supply control device, after the discharge process is performed, the control unit controls the equipment attached to the storage battery so as to charge the storage battery with an amount of power equal to the amount of power discharged in the discharge process.

[0012] One aspect of the present invention is a power supply control device that includes a monitoring unit that monitors the difference between a planned amount of power, which is the amount of power that a building that is installed with solar panels and is capable of supplying at least one of the power generated by the solar panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the solar panels minus the amount of power consumed by the building; and a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference to the storage battery when the actual amount of power exceeds the planned amount of power by more than a predetermined first amount of power, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual amount of power is lower than the planned amount of power by more than a predetermined second amount of power, wherein the control unit controls the equipment associated with the storage battery to reduce the charging rate of the storage battery to a predetermined charging rate or less before executing the charging process.

[0013] One aspect of the present invention is a monitoring unit that monitors a difference between a planned amount of power, which is an amount of power that a building that is installed with photovoltaic panels and is capable of supplying at least one of power generated by the photovoltaic panels and power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is an amount of power obtained by subtracting an amount of power consumed in the building from the amount of power generated by the photovoltaic panels; and a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference to the storage battery when the actual amount of power is higher than the planned amount of power by more than a predetermined first amount of power, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual amount of power is lower than the planned amount by more than a predetermined second amount of power. The control unit controls equipment associated with the storage battery to make the charging rate of the storage battery equal to or higher than a predetermined charging rate before executing the discharging process. It is a power supply control device.

[0014] One aspect of the present invention is a monitoring function that monitors the difference between a planned amount of power, which is the amount of power that a building that is installed with solar panels and is capable of supplying at least one of the power generated by the solar panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the solar panels minus the amount of power consumed by the building; a control function that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; a planning function that, when the charging process is executed, includes an amount of power charged to the storage battery in the charging process in the planned power amount after the charging process is executed; This is a power supply control program that enables a computer to achieve the above.

[0015] In one aspect of the present invention, a building is equipped with photovoltaic panels and is capable of supplying at least one of power generated by the photovoltaic panels and power stored in a storage battery to a power grid. The building monitors a difference between a planned amount of power, which is an amount of power that the building plans to supply to the power grid in advance, and an actual amount of power, which is an amount of power obtained by subtracting the amount of power consumed in the building from the amount of power generated by the photovoltaic panels. When the actual amount of power exceeds the planned amount of power by more than a predetermined first amount of power, the building performs at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual amount of power is lower than the planned amount of power by more than a predetermined second amount of power. death , When the charging process is executed, the planned power amount after the charging process is executed includes the amount of power charged to the storage battery by the charging process. A power supply control method. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide a power supply control device, a power supply control program, and a power supply control method that can prevent the amount of power supplied to a power grid from deviating from a plan. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a diagram illustrating an example of a photovoltaic power generation panel, a storage battery, a power system, and a power supply control device according to an embodiment of the present invention. [Figure 2] 1 is a diagram illustrating an example of a hardware configuration of a power supply control device according to an embodiment of the present invention. [Figure 3] FIG. 2 is a diagram illustrating an example of a software configuration of a power supply control device according to an embodiment of the present invention. [Figure 4] FIG. 10 is a diagram illustrating an example of a case where a discharge process according to an embodiment of the present invention is performed. [Figure 5] FIG. 10 is a diagram illustrating an example of a case where a charging process according to an embodiment of the present invention is executed. [Figure 6] 4 is a flowchart illustrating an example of a process executed by a power supply control device according to an embodiment of the present invention. [Figure 7] 4 is a flowchart illustrating an example of a process executed by a power supply control device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] [Embodiment] A power supply control device, a power supply control program, and a power supply control method according to an embodiment will be described with reference to FIGS.

[0019] Fig. 1 is a diagram showing an example of a solar power generation panel, a storage battery, a power system, and a power supply control device according to an embodiment of the present invention. Fig. 1 shows a solar power generation panel 10, a storage battery 20, a power system 30, and a power supply control device 40.

[0020] The solar power generation panel 10 is installed on at least one of a building and the site of the building. The power generated by the solar power generation panel 10 can be supplied to at least one of the building, the site of the building, and a power grid. The building referred to here is, for example, a detached house, an apartment building, or an office building.

[0021] The storage battery 20 is installed in a building or on the premises of the building. In this case, the storage battery 20 may be fixed in the building or on the premises of the building, or may be movable within at least one of the building and the premises of the building. Alternatively, the storage battery 20 is mounted on a hybrid vehicle (HV), an electric vehicle (EV), or the like used in the vicinity of the building. In either case, the storage battery 20 is installed in the building or on the premises of the building, and can be connected to equipment associated with the storage battery 20, and can supply power to at least one of the building, the premises of the building, and a power grid through the equipment. Furthermore, the state of charge (SOC) of the storage battery 20 is preferably equal to or less than a predetermined state of charge to leave room for charging. Furthermore, the state of charge of the storage battery 20 is preferably equal to or greater than a predetermined state of charge to leave room for discharging.

[0022] The power grid 30 supplies power to at least one of the building and the site of the building. The power grid 30 can also receive power from at least one of the photovoltaic power generation panel 10 and the storage battery 20.

[0023] The power supply control device 40 controls the equipment associated with the storage battery 20 to prevent the actual power amount from deviating from the planned power amount. The actual power amount is the amount of power obtained by subtracting the amount of power consumed by the building from the amount of power generated by the solar power generation panel 10. The power consumed by the building includes power consumed by the building and may also include power consumed within the building's premises. The planned power amount is the amount of power that the building is planned to supply to the power grid 30 from at least one of the solar power generation panel 10 and the storage battery 20.

[0024] The equipment associated with the storage battery 20 is electrical equipment used to supply the power stored in the storage battery 20 to at least one of the building, the site of the building, and the power grid 30, and to supply the power generated by the solar power generation panel 10 to the storage battery 20. The power supply control device 40 may be installed in the building, on the site of the building, or outside the site of the building.

[0025] 2 is a diagram showing an example of the hardware configuration of a power supply control device according to an embodiment of the present invention. As shown in Fig. 2, a power supply control device 40 includes a processor 41, a main memory device 42, a communication interface 43, an auxiliary memory device 44, an input / output device 45, and a bus 46.

[0026] The processor 41 is, for example, a CPU (Central Processing Unit), which reads and executes a power supply control program to realize each function of the power supply control device 40. The processor 41 may also read and execute a program other than the power supply control program to realize a function required to realize each function of the power supply control device 40.

[0027] The main storage device 42 is, for example, a RAM (Random Access Memory), and stores in advance a power supply control program and other programs that are read and executed by the processor 41.

[0028] The communication interface 43 is an interface circuit for communicating with other devices via a network, such as a wide area network (WAN), a local area network (LAN), the internet, or an intranet.

[0029] The auxiliary storage device 44 is, for example, a hard disk drive (HDD), a solid state drive (SSD), a flash memory, or a read only memory (ROM).

[0030] The input / output device 45 is, for example, an input / output port. For example, an input device and an output device are connected to the input / output device 45. The input device is, for example, a display, a touch panel display, a mouse, or a keyboard, and is used to operate the power supply control device 40 and input data to the power supply control device 40. The output device is, for example, a display, a touch panel display, or a speaker, and is used by the power supply control device 40 to present information to the user.

[0031] The bus 46 connects the processor 41, the main memory device 42, the communication interface 43, the auxiliary memory device 44, and the input / output device 45 so that data can be transmitted and received among them.

[0032] Next, the software configuration of the power supply control device will be described with reference to Fig. 3. Fig. 3 is a diagram showing an example of the software configuration of the power supply control device according to an embodiment of the present invention. As shown in Fig. 3, the power supply control device 40 includes a monitoring unit 401, a control unit 402, and a planning unit 403. The monitoring unit 401, the control unit 402, and the planning unit 403 are all realized by the processor 41 reading and executing a power supply control program stored in the main memory device 42.

[0033] The monitoring unit 401 monitors the difference between the planned power amount and the actual power amount. The monitoring unit 401 may continuously monitor the difference between the planned power amount and the actual power amount, or may monitor it at predetermined intervals, or may monitor it at a preset timing. For example, the monitoring unit 401 monitors the actual power amount by monitoring the amount of power consumed by home appliances used in a building or on the premises of the building, and monitors the difference between the planned power amount and the actual power amount. Furthermore, the monitoring unit 401 monitors the actual power amount by monitoring the amount of power generated by the solar power generation panel 10, and monitors the difference between the planned power amount and the actual power amount.

[0034] The control unit 402 determines whether the actual power amount exceeds the planned power amount by more than a predetermined first power amount. The predetermined first power amount is, for example, a power amount that exceeds the minimum significant difference between the actual power amount and the planned power amount. Alternatively, the predetermined first power amount is a power amount that is not acceptable as a difference between the actual power amount and the planned power amount. When the actual power amount exceeds the planned power amount by more than the predetermined first power amount, the control unit 402 executes a charging process to control equipment associated with the storage battery 20 so that at least a portion of the difference between the actual power amount and the planned power amount is charged to the storage battery 20. The control unit 402 also stores data indicating the content of the executed charging process in at least one of a storage device installed outside the power supply control device 40 and the auxiliary storage device 44. Furthermore, before executing the charging process, the control unit 402 preferably controls equipment associated with the storage battery 20 to reduce the charging rate of the storage battery 20 to a predetermined charging rate or less.

[0035] FIG. 4 is a diagram showing an example of a case where a charging process according to an embodiment of the present invention is executed. The horizontal axis of FIG. 4 represents time. The vertical axis of FIG. 4 represents the amount of power. The solid line shown in FIG. 4 represents the actual amount of power. The dotted line shown in FIG. 4 represents the planned amount of power. For example, when the actual amount of power exceeds the planned amount of power by more than a predetermined first amount of power, the control unit 402 executes the charging process described above, and brings the actual amount of power closer to the planned amount of power, as shown by the arrow in FIG. 4.

[0036] The control unit 402 also determines whether the actual power amount is lower than the planned power amount by more than a predetermined second power amount. The predetermined second power amount is, for example, a power amount that exceeds the minimum significant difference between the actual power amount and the planned power amount. Alternatively, the predetermined second power amount is a power amount that is not acceptable as a difference between the actual power amount and the planned power amount. When the actual power amount is lower than the planned power amount by more than the predetermined second power amount, the control unit 402 executes a discharge process to control equipment associated with the storage battery 20 so as to supply to the power grid 30 an amount of power equal to at least a portion of the difference between the actual power amount and the planned power amount. The control unit 402 also stores data indicating the content of the executed discharge process in at least one of a storage device installed outside the power supply control device 40 and the auxiliary storage device 44. Furthermore, before executing the discharge process, the control unit 402 preferably controls equipment associated with the storage battery 20 to raise the storage battery 20 to a predetermined storage rate or higher.

[0037] FIG. 5 is a diagram showing an example of a case where a discharge process according to an embodiment of the present invention is executed. The horizontal axis of FIG. 5 represents time. The vertical axis of FIG. 5 represents the amount of power. The solid line shown in FIG. 5 represents the actual power amount. The dotted line shown in FIG. 5 represents the planned power amount. For example, when the actual power amount is lower than the planned power amount by more than a predetermined second power amount, the control unit 402 executes the above-mentioned discharge process to bring the actual power amount closer to the planned power amount, as shown by the arrow in FIG. 5.

[0038] When the charging process is executed, the planning unit 403 executes a process of including the amount of power charged to the storage battery 20 by the charging process in the planned power amount after the charging process is executed. The planning unit 403 may execute the process based on data that is stored in at least one of a storage device and the auxiliary storage device 44 that are installed outside the power supply control device 40 and that indicates the content of the charging process that has already been executed.

[0039] Furthermore, when a discharge process is executed, the planning unit 403 subtracts the amount of power discharged in the discharge process from the planned power amount after the discharge process is executed. In this case, the control unit 402 controls equipment attached to the storage battery 20 so that, after the discharge process is executed, the storage battery 20 is charged with an amount of power equal to the amount of power discharged in the discharge process. For example, after the discharge process is executed, the control unit 402 controls equipment attached to the storage battery 20 so that, after the discharge process is executed, the storage battery 20 is charged with an amount of power equal to the amount of power discharged in the discharge process from the photovoltaic power generation panel 10. Furthermore, the planning unit 403 may execute these processes based on data that is stored in at least one of a storage device and an auxiliary storage device 44 installed outside the power supply control device 40 and indicates the content of the discharge process that has already been executed.

[0040] Next, an example of processing executed by the power supply control device 40 will be described with reference to Fig. 6. Fig. 6 is a flowchart showing an example of processing executed by the power supply control device according to an embodiment of the present invention. The processing shown in Fig. 6 may be executed at predetermined intervals or at a timing set in advance.

[0041] In step S11, the control unit 402 determines whether the actual power amount exceeds the planned power amount by more than a predetermined first power amount. If the control unit 402 determines that the actual power amount exceeds the planned power amount by more than the predetermined first power amount (step S11: YES), the control unit 402 proceeds to step S12. On the other hand, if the control unit 402 determines that the actual power amount does not exceed the planned power amount by more than the predetermined first power amount (step S11: NO), the control unit 402 ends the process.

[0042] In step S12, the control unit 402 executes a charging process for controlling the equipment attached to the storage battery so that at least a part of the difference between the actual power amount and the planned power amount is charged to the storage battery.

[0043] Next, an example of processing executed by the power supply control device 40 will be described with reference to Fig. 7. Fig. 7 is a flowchart showing an example of processing executed by the power supply control device according to an embodiment of the present invention. The processing shown in Fig. 7 may be executed at predetermined intervals or at a timing set in advance.

[0044] In step S21, the control unit 402 determines whether the actual power amount is lower than the planned power amount by more than a predetermined second power amount. If the control unit 402 determines that the actual power amount is lower than the planned power amount by more than the predetermined second power amount (step S21: YES), the control unit 402 proceeds to step S22. On the other hand, if the control unit 402 determines that the actual power amount is not lower than the planned power amount by more than the predetermined second power amount (step S21: NO), the control unit 402 ends the process.

[0045] In step S22, the control unit 402 executes a discharge process for controlling the equipment attached to the storage battery so as to supply to the power grid an amount of power equal to at least a part of the difference between the actual power amount and the planned power amount.

[0046] The above has described the power supply control device 40 according to the embodiment. The power supply control device 40 includes a monitoring unit 401 and a control unit 402.

[0047] The monitoring unit 401 monitors the difference between the planned power amount and the actual power amount. The planned power amount is the amount of power that is planned in advance to be supplied to the power grid by a building that is capable of supplying at least one of the power generated by the photovoltaic power generation panels 10 and the power stored in the storage battery 20 to the power grid 30. The actual power amount is the amount of power obtained by subtracting the amount of power consumed by the building from the amount of power generated by the photovoltaic power generation panels 10.

[0048] When the actual power amount exceeds the planned power amount by more than a predetermined first power amount, the control unit 402 executes a charging process to control equipment attached to the storage battery 20 to charge at least a part of the difference to the storage battery 20. Furthermore, when the actual power amount is lower than the planned power amount by more than a predetermined second power amount, the control unit 402 executes a discharging process to control equipment attached to the storage battery 20 to supply power equal to at least a part of the difference to the power grid.

[0049] This allows the power supply control device 40 to prevent the actual power amount from deviating from the planned power amount.

[0050] The power supply control device 40 further includes a planning unit 403 that, when the charging process is executed, includes the amount of power charged to the storage battery 20 in the charging process in the planned power amount after the charging process is executed. This allows the power supply control device 40 to set the planned power amount taking into account the amount of power charged to the storage battery 20 in the charging process.

[0051] The power supply control device 40 further includes a planning unit 403 that, when a discharge process is executed, subtracts the amount of power discharged in the discharge process from the planned power amount after the discharge process is executed. This allows the power supply control device 40 to set a planned power amount that takes into account the amount of power discharged in the discharge process.

[0052] After the discharge process is executed, the power supply control device 40 controls the equipment attached to the storage battery 20 so that the amount of power equal to the amount of power discharged in the discharge process is charged to the storage battery 20. In this way, the power supply control device 40 supplies the amount of power discharged in the discharge process to the storage battery 20, and it is possible to avoid a situation where the power stored in the storage battery 20 becomes insufficient.

[0053] Before executing the charging process, the power supply control device 40 controls the equipment attached to the storage battery 20 so that the charging rate of the storage battery 20 is equal to or lower than a predetermined charging rate. This allows the power supply control device 40 to continue executing the charging process until the charging rate of the storage battery 20 reaches 100%, and even if the difference between the actual power amount and the planned power amount is large, the difference can be reduced.

[0054] Before executing the discharge process, the power supply control device 40 controls the equipment attached to the storage battery 20 so that the charge rate of the storage battery 20 becomes equal to or higher than a predetermined charge rate. This makes it possible for the power supply control device 40 to continue executing the discharge process until the charge rate of the storage battery 20 becomes 0%, and makes it possible to reduce the difference between the actual power amount and the planned power amount even if the difference is large.

[0055] In the above-described embodiment, an example was given in which the processor 41 reads and executes a power supply control program to realize the data acquisition unit 101 and the power supply control unit 102 shown in FIG. 3, but the present invention is not limited to this.

[0056] At least some of the functions of the power supply control device 40 shown in Fig. 3 may be realized by hardware including circuitry such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a GPU (Graphics Processing Unit). Alternatively, at least some of the functions of the power supply control device 40 shown in Fig. 3 may be realized by a combination of software and hardware. Furthermore, these pieces of hardware may be integrated into one or may be separated into multiple pieces.

[0057] Although the embodiments of the present invention have been described above with reference to the drawings, the power supply control device, the power supply control program, and the power supply control method are not limited to the above-described embodiments, and various modifications, substitutions, combinations, and / or design changes can be made without departing from the spirit and scope of the present invention.

[0058] Furthermore, the effects of the above-described embodiments of the present invention are described as examples. Therefore, the embodiments of the present invention may also achieve other effects that a person skilled in the art can recognize from the description of the above-described embodiments in addition to the above-described effects. [Explanation of symbols]

[0059] 10...Solar power generation panel, 20...Storage battery, 30...Power system, 40...Power supply control device, 41...Processor, 42...Main memory device, 43...Communication interface, 44...Auxiliary memory device, 45...Input / output device, 46...Bus, 401...Monitoring unit, 402...Control unit, 403...Planning unit

Claims

1. a monitoring unit that monitors the difference between a planned amount of power, which is the amount of power that a building that is installed with photovoltaic panels and is capable of supplying at least one of the power generated by the photovoltaic panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the photovoltaic panels minus the amount of power consumed in the building; a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; a planning unit that, when the charging process is executed, includes an amount of power charged to the storage battery in the charging process in the planned power amount after the charging process is executed; A power supply control device comprising:

2. a monitoring unit that monitors the difference between a planned amount of power, which is the amount of power that a building that is installed with photovoltaic panels and is capable of supplying at least one of the power generated by the photovoltaic panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the photovoltaic panels minus the amount of power consumed in the building; a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; a planning unit that, when the discharge process is executed, subtracts the amount of power discharged in the discharge process from the planned power amount after the discharge process is executed; A power supply control device comprising:

3. After the discharge process is executed, the control unit controls equipment associated with the storage battery to charge the storage battery with an amount of power equal to the amount of power discharged in the discharge process. The power supply control device according to claim 2 .

4. a monitoring unit that monitors the difference between a planned amount of power, which is the amount of power that a building that is installed with photovoltaic panels and is capable of supplying at least one of the power generated by the photovoltaic panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the photovoltaic panels minus the amount of power consumed in the building; a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; Equipped with The control unit controls equipment associated with the storage battery so that the charging rate of the storage battery is equal to or lower than a predetermined charging rate before executing the charging process. Power supply control device.

5. a monitoring unit that monitors the difference between a planned amount of power, which is the amount of power that a building that is installed with photovoltaic panels and is capable of supplying at least one of the power generated by the photovoltaic panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the photovoltaic panels minus the amount of power consumed in the building; a control unit that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; Equipped with The control unit controls equipment associated with the storage battery so that the charging rate of the storage battery is equal to or higher than a predetermined charging rate before performing the discharging process. Power supply control device.

6. a monitoring function for monitoring the difference between a planned amount of power, which is the amount of power that a building that is installed with photovoltaic panels and is capable of supplying at least one of the power generated by the photovoltaic panels and the power stored in a storage battery to the power grid, plans to supply to the power grid in advance, and an actual amount of power, which is the amount of power generated by the photovoltaic panels minus the amount of power consumed by the building; a control function that executes at least one of a charging process that controls equipment associated with the storage battery to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; a planning function that, when the charging process is executed, includes an amount of power charged to the storage battery in the charging process in the planned power amount after the charging process is executed; A power supply control program that enables a computer to achieve this.

7. a building that is equipped with photovoltaic power generation panels and is capable of supplying at least one of the power generated by the photovoltaic power generation panels and the power stored in a storage battery to the power grid, and monitors the difference between a planned power amount, which is the amount of power that is planned in advance to be supplied to the power grid, and an actual power amount, which is the amount of power generated by the photovoltaic power generation panels minus the amount of power consumed by the building; executes at least one of a charging process that controls equipment associated with the storage battery so as to charge at least a portion of the difference into the storage battery when the actual power amount exceeds the planned power amount by more than a predetermined first power amount, and a discharging process that controls equipment associated with the storage battery so as to supply an amount of power equal to at least a portion of the difference to the power grid when the actual power amount is lower than the planned power amount by more than a predetermined second power amount; When the charging process is executed, the planned power amount after the charging process is executed includes the amount of power charged to the storage battery by the charging process. Power supply control method.

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