JP2013219848A - Apparatus control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus control system capable of achieving both of increased power selling amount by power creation of a photovoltaic power generator and improved running cost of a system.SOLUTION: The equipment control system 1 includes a photovoltaic power generator 5 that generates electric power using energy obtained from sunshine; various types of electric apparatuses operated using electric power generated by the photovoltaic power generator 5 and system power 9; and integrated ECU 41 that controls the operation of the photovoltaic power generator 5 and the operation of an electrical apparatus. The integrated ECU 41 controls so that the operation of the electrical apparatus is stopped or an operation output is decreased, on the basis of power generation information about power generation amount by the photovoltaic power generator 5.

Description

  The present invention relates to a device control system that controls the operation of an electric device in accordance with the power generation state of a solar power generation device.

  According to the technique described in Patent Document 1, when the amount of electric power that can be supplied from the solar cell is equal to or greater than a predetermined value, the hot water supply device is operated using the electric power from the solar cell to store hot water in the tank. Therefore, according to the technique of Patent Document 1, since hot water is stored in the tank by effectively using the power of the solar cell during the day, it is possible to provide a hot water storage type hot water supply apparatus that requires as little running cost as possible.

  The technology described in Patent Document 2 relates to a system in which a solar battery that generates DC power is connected to a commercial power supply via an inverter circuit, and an electric device is connected between the inverter circuit and the commercial power supply. In the system, when the power flows backward to the commercial power source and the voltage of the AC power becomes higher than a predetermined value, the electric device in the stopped state can be operated to increase the private power consumption.

JP 2004-271164 A Japanese Patent No. 3838955

  The technology of Patent Document 1 can operate the hot water supply device using surplus power generated by the solar power generation device, but does not control the hot water supply device so as to increase surplus power or power that can be sold.

  In the technique of Patent Document 2, when the AC power of the reverse power flow becomes higher than a predetermined value due to the power generation of the solar power generation device, when the electrical device is in an operating state, the reverse power flow is continued until the electrical device is stopped. The determination as to whether the AC voltage is higher than a predetermined value is continued. Therefore, in the technique of Patent Document 2, since it is not possible to perform control for stopping the operation of an electric device when a reverse power flow to a commercial power source due to power generation by a solar power generation device, in other words, when the amount of power sales increases, The amount of power sold to the power supply cannot be increased.

  Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a device control system capable of increasing the amount of power sold by power generation by a solar power generation device and improving the running cost of the system.

  In order to achieve the above object, the following technical means are adopted. That is, the present invention relating to the device control system is operated using a solar power generation device (5) that generates power using energy obtained from sunlight, and power generated by the solar power generation device and system power (9). And a control device (41) for controlling the operation of each of the photovoltaic power generation device and the electrical device, and the control device generates power generation information related to the power generation amount of the photovoltaic power generation device. The power saving mode is implemented in which the operation of the electric device is stopped or the operation output is reduced in the daytime period included from sunrise to sunset.

  According to the present invention, in the solar power generation device, by controlling the electric device so as to stop the operation or reduce the operation output in accordance with the power generation information of the solar power generation device in a sunshine time period. The amount of power generated can be reduced. For this reason, regarding the power generation by the solar power generation device, it is possible to carry out control to increase the amount of power sold while using the electric device. Therefore, it is possible to obtain a device control system capable of increasing the amount of power sold by the power generation of the solar power generation device and improving the running cost of the system.

  Note that the reference numerals in parentheses described in the claims and the above-described means are examples of a correspondence relationship with the specific means described in the embodiments described later as one aspect, and are technical terms of the present invention. It does not limit the range.

It is the schematic which showed the apparatus control system which concerns on 1st Embodiment to which this invention is applied. It is the block diagram which showed the structure of the apparatus control system. It is a flowchart which shows the process sequence of the equipment control performed based on electric power generation information in the equipment control system of 1st Embodiment. It is a figure which shows the transition relationship of the normal mode and power saving mode performed in the apparatus control system of 1st Embodiment. In the apparatus control system of 1st Embodiment, it is the figure which showed the screen displayed when there exists induction | guidance | derivation to a power saving mode. It is the figure which showed the screen which can set a power saving mode in the apparatus control system of 1st Embodiment. In 1st Embodiment, it is the figure which showed the screen displayed when the power saving mode is not set and there is a guidance to the power saving mode. In 1st Embodiment, it is the figure which showed the screen displayed when the power saving mode is set and there is a guidance to the power saving mode. In 1st Embodiment, it is the figure which showed the screen displayed when the power saving mode is not set and there is no guidance to the power saving mode. In 1st Embodiment, it is the figure which showed the screen displayed when the power saving mode is set and there is a guidance to the power saving mode. In 1st Embodiment, it is the figure which showed the screen on which the power saving mode mark was displayed. In 2nd Embodiment, it is a flowchart which shows the process sequence of the equipment control performed based on electric power generation information. In 3rd Embodiment, it is a flowchart which shows the process sequence of the equipment control performed based on electric power generation information. In 4th Embodiment, it is a flowchart which shows the process sequence of the equipment control performed based on electric power generation information. In 5th Embodiment, it is a flowchart which shows the process sequence of the apparatus control performed at midnight time zone. In 6th Embodiment, it is a flowchart which shows the process sequence of the apparatus control performed at midnight time zone. It is the schematic which showed the other form of the apparatus control system of 1st Embodiment.

  A plurality of modes for carrying out the present invention will be described below with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly show that combinations are possible in each embodiment, but also combinations of the embodiments even if they are not specified, unless there is a particular problem with the combination. Is also possible.

  The device control system according to the present invention controls the operation of a solar power generation device that can sell surplus power generated and the operation of an electric device that is operated using the power generated by the solar power generation device. It is a system that controls the amount of power sold and the amount of power used by an electric device based on predetermined conditions. Further, in the following embodiment, a device control system having an integrated remote device that manages various electric devices including a solar power generation device and a hot water supply device is described, but the device control system according to the present invention is It goes without saying that the present invention is not limited to those applied to this system.

(First embodiment)
1st Embodiment which is one form of the apparatus control system to which this invention is applied is described with reference to FIGS.

  As shown in FIG. 1, the device control system 1 includes a solar power generation device 5 having a solar battery that generates solar energy and generates power, power from the solar power generation device 5, system power supplied from an electric power company, and the like. The power conditioner 8 that receives the power 9 and supplies it to various electric devices or sells it to the system power 9, and the integrated remote device 4 that remotely controls the photovoltaic power generation device 5 and the plurality of electric devices at a remote location. Is a system mainly comprising The device control system 1 controls various air conditioners 7 and a hot water supply device 2 as an example of an electric device, and is a charge system that is cheaper than power generation using sunlight and an electric charge during daytime hours. Hot water supply satisfying the user's demands and usage results can be performed while giving priority to energy saving by utilizing boiling operation performed in a predetermined charge time zone (for example, late night charge time zone).

  The DC power generated by the solar power generation device 5 from the solar energy and the AC power transmitted from the system power 9 are sent to the power conditioner 8. The power conditioner 8 is a power conversion device that efficiently converts DC power generated by the solar power generation device 5 into AC power, or converts AC power from the system power 9 into DC power. The electric power sent to the power conditioner 8 is converted between AC and DC and supplied to various electric devices such as the air conditioner 7 and the hot water supply device 2 and the outlet 6. Various electrical devices are, for example, lighting equipment, air conditioners, floor heating devices, refrigerators, fully automatic washing machines, bathroom heating devices, and the like.

  The hot water supply device 2 is a hot water storage type hot water supply device that stores hot water that has been boiled and uses it for hot water supply. The hot water supply device 2 includes a heat pump unit 20 that is a heating device using a heat pump cycle, a tank unit 3 that stores hot water that has been boiled by the heat pump unit 20, an operation of the heat pump unit 20 that is related to boiling operation, and an electromagnetic that is related to hot water supply. And a hot water supply ECU 30 that controls the operation of each part such as a valve and a mixing valve. The hot water supply device 2 uses only hot water stored in a tank using the system power 9 in the late-night charge time zone, or the solar power generation device 5 in the daytime when taking out hot water in a bathtub or shower. The hot water supply water is boiled and used by using the power of the power or the power from the grid power 9.

  The heat pump unit 20 includes a heat pump cycle that uses a refrigerant as a heat exchange medium, and is a heating device that can heat water stored in the tank of the tank unit 3. The heat pump cycle includes a compressor, a refrigerant / water heat exchanger, a decompressor, and an air heat exchanger. The compressor is a device that compresses and discharges carbon dioxide refrigerant. The refrigerant / water heat exchanger heats the hot water by exchanging heat between the refrigerant compressed by the compressor and the hot water from the tank. The decompressor decompresses the high-pressure refrigerant that has passed through the refrigerant / water heat exchanger into a low-pressure state. The air heat exchanger causes heat exchange with the air blown by the blower to evaporate the low-pressure refrigerant decompressed by the decompressor. The refrigerant that has passed through the air heat exchanger is compressed again by the compressor and discharged in a high-pressure state.

  The tank and the heat pump cycle are connected by a circulation circuit. The water in the tank circulates in the circulation circuit by the driving force of the pump. In this way, the hot hot water heated by the refrigerant / water heat exchanger flows from the upper part of the tank to form a hot part at the upper part of the tank, and the cold part water stored at the bottom of the tank. Flows into the refrigerant / water heat exchanger, heated by the refrigerant / water heat exchanger, and then sent to the upper part of the tank.

  The operation of the heat pump unit 20 is controlled by a control signal from the heat pump ECU 21 communicating with the hot water supply ECU 30, and the operation state is input to the hot water supply ECU 30 via the heat pump ECU 21. The heat pump unit 20 boils hot water supply water using the grid power 9 in the late-night charge time period and stores it in the tank in order to store the amount of heat predicted to be used the next day from the past usage record in the tank. .

  The tank is a metal tank excellent in corrosion resistance, and a heat insulating material (not shown) is disposed on the outer peripheral portion thereof, so that hot water for hot water supply can be kept warm for a long time. The hot water supply ECU 30 is based on temperature information from a plurality of hot water storage temperature thermistors provided at intervals in the upper and lower sides of the tank, and heated water above the tank and water before being heated below the tank. Can be detected. In this way, the hot water supply ECU 30 can calculate the amount of heat stored in the tank by detecting the temperature and the amount of hot water.

  The hot water supply ECU 30 is configured to be able to communicate with a heat pump ECU 21 that controls the operation of the heat pump unit 20 and a bathroom controller that is installed in the bathroom and operated by a user. The hot water supply ECU 30 is also configured to communicate with the integrated remote device 4 that manages the device control system 1.

  The hot water supply ECU 30 is configured mainly by a microcomputer, and a built-in ROM is provided with a preset control program, and is provided with a storage device such as a RAM so as to be updatable. The hot water supply ECU 30 is based on the temperature information from each thermistor, the flow information from each flow counter, the operation signal of the operation input unit of the bathroom controller and the integrated remote device 4, etc., and the actuators such as the heat pump unit 20, various valves and pumps. To control. The bathroom controller and the integrated remote device 4 include a power supply operation unit, a hot water supply set temperature operation unit, a hot water filling operation unit, a hot water filling set temperature operation unit, a chasing operation unit, a chasing setting temperature operation unit, an automatic mode operation unit. Etc. are provided.

  The integrated remote device 4 is a remote operation that is installed in a building so that the operation of the photovoltaic power generation device 5 and the operation of various electric devices such as the hot water supply device 2 can be remotely controlled, for example, in a living room or kitchen. Device. The integrated remote device 4 is integrated with an integrated ECU 41 that performs remote control, a touch panel that is a display screen and an operation screen on which operation input can be performed, and a display setting unit 401 that is operated when setting the main screen of the touch panel. An operation setting unit 42 that is operated and input when controlling the operation of each device. The integrated ECU 41 includes a display control unit 410 that displays a display form of a touch panel, and a recommended display setting unit 402 that is a display unit that prompts the user to enter a recommended power saving mode. As the touch panel, a panel having various operation methods such as a resistive film method, a projection capacitance method, a surface capacitance method, and an ultrasonic surface acoustic wave method can be employed.

  The integrated remote device 4 has a display state in which the operation of the photovoltaic power generation device 5 can be controlled and a display state in which the operation of various electric devices can be controlled by operating the display setting unit 401 and the like on the touch panel. And can be displayed respectively. That is, the user can control a controllable device corresponding to the display state by operating the touch panel.

  The integrated ECU 41 displays the display screen of the touch panel by the display control unit 410 and remotely controls the operation of the solar power generation device 5 and the operation of various electric devices including the hot water supply device 2 at remote locations. Various information such as the operation status and setting information of the electric device and the solar power generation device 5 integrated by the device control system 1 is displayed on the display screen of the touch panel by the display control of the display control unit 410. The touch panel is configured to display information related to the solar power generation device 5 and information related to the electrical device, and to be configured to allow a predetermined part of the displayed portion to be operated and input, for example, by a panel having a liquid crystal display unit and an input unit Composed. In addition, the integrated remote device 4 measures and displays the operation and energy usage of each electrical device at home, etc., where the power is used, to encourage users to save energy and limit the electrical usage of the electrical device, etc. It also functions as a home energy management system that reduces energy consumption.

  The display setting unit 401 is a predetermined part of the touch panel, and switches between a display screen capable of remotely controlling the solar power generation device 5 and a display screen capable of remotely controlling the electric device when operated. When the display setting unit 401 is operated, the operation signal is input to the integrated ECU 41, and the display control unit 410 performs control to switch the display screen of the touch panel in response to the operation signal.

  The touch panel displays a large amount of information related to the operation of the hot water supply device 2 on the main screen when a screen capable of remotely controlling the hot water supply device 2 by an operation input to the display setting unit 401 is displayed. The information regarding the power generation amount of 5 is displayed small. Moreover, when the screen which can remotely control the solar power generation device 5 by the operation input with respect to the display setting part 401 is displayed on the touch panel, the power generation information related to the operation of the solar power generation device 5 is greatly increased on the main screen. While displaying, the information regarding the driving | operation of the hot-water supply apparatus 2 is displayed small.

  Next, an example of device control executed by the device control system 1 will be described with reference to the flowchart of FIG. The device control relates to a power saving mode performed based on the power generation information of the solar power generation device 5. Processing related to the device control is mainly executed by hot water supply ECU 30. The integrated ECU 41 may perform the process related to the device control.

  The hot water supply ECU 30 starts processing according to the flowchart of FIG. 3 at a predetermined time in the morning, for example, 8:01. As shown in FIG. 3, the hot water supply ECU 30 receives power generation information related to the power generation amount of the solar power generation device 5 in step 10. Next, in step 20, it is determined whether or not the received power generation information is at a level that satisfies the power saving mode execution condition. The case where the power saving mode execution condition is satisfied is a case where the power generation amount for a predetermined time is equal to or greater than a predetermined value. Here, the power generation amount in the 6 o'clock range (between 6 o'clock and 7 o'clock) is 100 W / h or more.

  As described above, when the amount of power generation in a predetermined time before the time zone in which the power saving mode is performed is larger than the predetermined value, it is determined that there is surplus power that can be sold, and the electric device in the daytime time zone is determined. Limit power usage. Further, when the power generation amount is smaller than a predetermined value, it is determined that there is no surplus power that can be sold, and the power usage of the electric device in the daytime time zone is not limited. The daytime time zone is a predetermined time zone included from sunrise to sunset, and can be set to any time zone in the time zone from sunrise to sunset.

  If the hot water supply ECU 30 determines in step 20 that the power generation amount is low and the execution conditions of the power saving mode are not satisfied, it determines that there is no surplus power that can be sold. And it progresses to step 25, and in order to be able to implement the heating operation of the daytime time zone using the electric power generated by the solar power generation device 5, execution of the set modes (for example, the normal mode) other than the power saving mode is executed. The flow chart of this control is finished. The hot water supply ECU 30 transmits the processing result of step 25 to the integrated ECU 41.

  If the hot water supply ECU 30 determines in step 20 that the power generation amount is high and the execution condition of the power saving mode is satisfied, it determines that there is surplus power that can be sold. Then, the process proceeds to step 30, where the execution of the power saving mode in the daytime time zone is determined, and the flowchart of this control is ended. Further, the hot water supply ECU 30 transmits the processing result of step 30 to the integrated ECU 41. As described above, the power saving mode is a mode that is automatically guided when the above-described power saving mode execution condition is satisfied when automatic operation is set.

  Next, the operation mode implemented by the hot water supply apparatus 2 will be described. The operation modes are roughly classified into a power saving mode and a normal mode other than the power saving mode. The automatic setting of the power saving mode is effective in modes other than the full tank mode and the full use mode, and the power saving mode is performed when the automatic mode and the automatic energy saving mode are set. The normal mode includes an automatic mode, an automatic energy saving mode, a full tank mode, and a full-use mode.

  The full tank mode is a mode in which the hot water supply device 2 is operated so that the tank unit 3 stores heat in a full tank state. The exhaust mode is a mode in which the hot water supply device 2 is operated to such an extent that the amount of heat stored in the tank unit 3 can be used up. The entrusted mode is a mode in which the predicted use heat amount is obtained based on the past use history of hot water supply, and the hot water supply device 2 is operated so that the predicted use heat amount is not insufficient. The entrusted energy saving mode is a mode in which the hot water supply device 2 is operated so as to suppress the electric power used more than the entrusted mode.

  The transition of the operation mode performed in the hot water supply apparatus 2 is as shown in the transition diagram shown in FIG. In other words, the power saving mode cannot be set while the full tank mode is being set and when the exhaust mode is being set. If the full tank mode is set by manual operation while the power saving mode is set, the power saving mode is canceled. If the full-use mode is set by manual operation while the power saving mode is set, the power saving mode is canceled. That is, even when the power saving mode is set, if the mode is changed by a manual operation, the user's operation is given priority.

  Next, the heating operation when the power saving mode is set will be described. When the amount of heat stored in the tank unit 3 falls below a predetermined amount in the daytime time zone during which the power saving mode is set, the hot water supply ECU 30 performs the hot water supply device 2 even when the conditions for implementing the power saving mode are satisfied. To store the amount of heat in the tank unit 3. The predetermined amount is, for example, a predetermined minimum hot water storage amount of 30 L that needs to be stored in the tank unit 3 at the minimum in the power saving mode, and needs to be stored in the tank unit 3 at the minimum in the normal mode other than the power saving mode. A predetermined minimum hot water storage amount 80 L can be set. Further, the predetermined amount may be a value that is determined and updated based on the past usage record.

  According to this control, when the amount of hot water corresponding to the minimum heat storage amount is not stored in the tank unit 3, the boiling operation is performed urgently even when the power saving mode is set. Hot water can be replenished, and hot water outbreak can be prevented during daytime hours. Therefore, the device control system 1 is a system that can realize the inconvenience of the user due to the shortage of hot water, in addition to the effect of increasing the amount of power sold and improving the running cost of the system.

  As described above, the hot water supply ECU 30 ensures the minimum amount of stored hot water between the end of the daytime period or the midnight time period and the next start of the midnight time period when the power saving mode is set. Other than the heating operation to be performed, the boiling operation by the hot water supply device 2 is prohibited. During the power saving mode setting, in the boiling operation for securing the minimum amount of stored hot water, the boiling temperature determined by the same method as in the case of the boiling operation in the midnight time zone is set.

  Next, regarding various electric devices other than the hot water supply device 2, device control at the time of setting the power saving mode will be described. When the electric device is the air conditioner 7, the integrated ECU 41 sets the air conditioner 7 to stop the operation from the start of power generation until the end of power generation in the daytime period when the power saving mode execution condition is satisfied. To control. Alternatively, the integrated ECU 41 stops the operation of the air conditioner 7 during the daytime period from the start of power generation to the end of power generation, and stops the operation when the power generation amount exceeds a predetermined value that can sufficiently sell power. To release. Alternatively, the integrated ECU 41 controls the air conditioner 7 so as to suppress the operation output during the daytime period from the start of power generation to the end of power generation. The operation output in this case is controlled so that the control temperature is raised by 2 ° C. during cooling and the control temperature is lowered by 2 ° C. during heating with respect to the set temperature.

  When the electric device is a floor heating device, the integrated ECU 41 controls the floor heating device so that the operation is stopped during the daytime period from the start of power generation to the end of power generation when the power saving mode execution condition is satisfied. To do. Alternatively, the integrated ECU 41 stops the operation of the floor heating device during the daytime period from the start of power generation to the end of power generation, and cancels the operation stop when the power generation amount exceeds a predetermined value that can sufficiently sell power To do. Alternatively, the integrated ECU 41 stores past power generation start times, starts operation a predetermined time (for example, 2 hours) before the predicted power generation start time obtained from the actual power generation start time, and generates power during the daytime period. When the operation is started, the floor heating device is controlled to stop the operation. Alternatively, the integrated ECU 41 controls the floor heating device so as to suppress the operation output during the daytime period from the start of power generation to the end of power generation. The operation output in this case is controlled so that the control temperature is lowered by 2 ° C. with respect to the set temperature.

  When the electric device is a refrigerator, the integrated ECU 41 controls the refrigerator so as to suppress the operation output during the daytime period from the start of power generation to the end of power generation. The operation output in this case is controlled so that the refrigeration intensity is lower than the set value.

  When the electric device is a fully automatic washing machine, the integrated ECU 41 stores the past power generation start time so that the washing is completed before the predicted power generation start time obtained from the actual power generation start time. The fully automatic washing machine is controlled so that the operation is stopped when the operation is started and the power generation is started in the daytime.

  The device control system 1 may have a function that allows the user to manually set whether or not to execute the power saving mode during the daytime. In this case, the device control system 1 displays a display unit that prompts the user to enter the power saving mode when the execution condition of the power saving mode is satisfied. As shown in FIG. 5, this display unit is an attention mark composed of “i mark”. This attention mark is also a recommended display setting unit 402 that is operated and input when advice regarding the power saving mode is to be displayed on the screen of the touch panel.

  In FIG. 5, display units such as “solar”, “eco-cute”, “setting”, “history”, and the like arranged at the top of the touch panel are display setting units 401. When the “solar” display unit of the display setting unit 401 is touched, the display control unit 410 displays the screen shown in FIG. 5 on the touch panel. This state is a display state in which the solar power generation device 5 can be controlled. The power generation information related to the power generation amount is displayed as main, and the information related to the operation of the hot water supply device 2 is displayed as sub.

  By inputting the recommended display setting unit 402 in FIG. 5, the display control unit 410 changes the screen of the touch panel to the screen illustrated in FIG. 6. In the screen shown in FIG. 6, when the “mode diagnosis” display unit is operated and input, the display control unit 410 is optimal based on the recent usage record of Ecocute (a registered trademark of Kansai Electric Power Co., Inc.) that is the hot water supply device 2. Displays the contents of diagnosis of various operation modes. In addition, when the “power saving mode” display unit 403 (the display unit 403 displaying “i mark”) is input, the display control unit 410 displays advice on the power saving mode on the screen.

  The advice display screens are as shown in FIGS. FIG. 7 is a screen displayed when there is an “i mark” display that recommends the power saving mode in a state where the power saving mode is not set. The advice displayed in this case is the previous day's power generation amount, power sale price, comments recommending the power saving mode, and notes regarding hot water runs out.

  When the user wants to confirm the advice display and set the power saving mode in the daytime period, the user can input the operation setting unit 420 including the “set power saving mode” display unit in FIG. When the operation setting unit 420 is input, the display control unit 410 displays a screen similar to that in FIG. 5 without the “i mark” display. Further, when the “Eco-Cute” display setting unit 401 is operated and input, the top screen of “Eco-Cute” shown in FIG. 11 is displayed. In this screen, the display control unit 410 displays a “power saving mode mark” display unit 404 indicating that the power saving mode is being set. The integrated ECU 41 controls the operation of the hot water supply device 2 to execute the power saving mode in the daytime period according to the operation input of the operation setting unit 420.

  Once the recommended display setting unit 402 in FIG. 5 is operated and input, the “i mark” display disappears from the screen regardless of whether or not the power saving mode is set. Further, the display control unit 410 controls the screen so that the “i mark” is not displayed for seven days after the recommended display setting unit 402 is operated and input even when the execution condition of the power saving mode is satisfied again. .

  In the top screen of “Eco Cute” shown in FIG. 11, an input unit 422 that is a “tank hot water” display included in the operation setting unit 42 and a “today hot water hot water stop” display are displayed at the bottom of the touch panel screen. An input unit 423, an input unit 424 that is a “setting value up / down adjustment” display, an input unit 425 that is a “menu determination” display, and an input unit that is a “call” display are displayed. When the input unit 423 is touched, the hot water supply ECU 30 controls the operation to add hot water to the tank. When the input unit 423 is touched, the hot water supply ECU 30 performs control to stop today's hot water supply operation. When the input unit 425 is touched, a command for determining the operation menu related to the hot water supply apparatus 2 to the current setting state is transmitted from the integrated ECU 41 to the hot water supply ECU 30. Touching the input section of the “call” display enables a call with the bathroom.

  Further, the unit price of power sale is set by operating and inputting the “unit price setting” display section on the screens of FIGS. 7 to 10 and the user inputting the power sale price per kW. Based on this, the power sale price of the previous day is calculated. When the unit price is not set, a message that the unit price is not set is displayed on the touch panel screen. When the unit price is changed, the user can input and reset a new unit price.

  FIG. 8 is a screen that is displayed when the “i mark” is displayed to recommend the cancellation of the power saving mode in a state where the power saving mode is set. The advice displayed in this case is a comment recommending cancellation of the power generation amount, the power sale amount, and the power saving mode on the previous day. When the user wants to cancel the power saving mode during the daytime period after confirming this advice display, the user can input the operation setting unit 421 including the “do not set power saving mode” display unit in FIG. When the operation setting unit 421 is input, the display control unit 410 displays a screen similar to that in FIG. 5 without the “i mark” display.

  FIG. 9 is a screen displayed when the “i mark” is not displayed in a state where the power saving mode is not set. The advice displayed in this case is a comment that does not recommend the power generation amount, power sale amount, and power saving mode of the previous day. When the user confirms the advice display and sets the power saving mode during the daytime period, the user can input the operation setting unit 421 including the “set power saving mode” display unit in FIG. 9. When the operation setting unit 421 is input, the display control unit 410 displays a screen similar to that in FIG. 5 without the “i mark” display.

  FIG. 10 is a screen displayed when the “i mark” is not displayed in the state where the power saving mode is set. The advice displayed in this case is a comment recommending the continuation of the power saving mode based on the power generation amount of the previous day, the amount of electricity sold, the actual use of hot water supply, and precautions regarding running out of hot water. When the user wants to cancel the power saving mode during the daytime period after confirming the advice display, the user can input the operation setting unit 420 including the “do not set the power saving mode” display unit in FIG. When the operation setting unit 420 is input, the display control unit 410 displays a screen similar to that in FIG. 5 without the “i mark” display. When the operation setting unit 421 including the “set power saving mode” display unit in FIG. 9 is operated and the “ecocute” display setting unit 401 is further input, the screen shown in FIG. 11 which is the top screen of “ecocute” Is displayed. In this screen, the display control unit 410 displays a “power saving mode mark” display unit 404 indicating that the power saving mode is being set. The integrated ECU 41 controls the operation of the hot water supply device 2 to continue the power saving mode in the daytime period according to the operation input of the operation setting unit 420.

  The operational effects brought about by the device control system 1 of the first embodiment will be described below. The device control system 1 includes a solar power generation device 5 that generates power using energy obtained from sunlight, various electric devices that are operated using the power generated by the solar power generation device 5 and the system power 9, and And an integrated ECU 41 that controls the operation of the solar power generation device 5 and the operation of the electric device. The integrated ECU 41 controls to stop the operation of the electric device during the daytime period or to reduce the operation output based on the determination based on the power generation information related to the power generation amount by the solar power generation device 5 (step 30).

  According to this, by controlling various electric devices so as to stop the operation or reduce the operation output based on the determination based on the power generation information of the solar power generation device 5 in the daytime hours with sunshine, The amount of electric power generated by the solar power generation device 5 can be reduced. For this reason, about the electric power generation by the solar power generation device 5, it is possible to perform the control to increase the amount of power sold by the solar power generation device 5 by suppressing the power use of the electric device while using the electric power in the electric device. Therefore, the device control system 1 can achieve both an increase in the amount of power sold by the power generation of the solar power generation device 5 and an improvement in the running cost of the system.

  When the hot water supply ECU 30 determines that the power generation amount in the morning predetermined time range (range from 6 o'clock to 7 o'clock) by the solar power generation device 5 is equal to or more than a predetermined amount (for example, 100 W / h or more), Stop the operation of the electric device or reduce the operation output. According to this, the amount of heat that can be sold is determined based on the amount of power generation in a predetermined time range in the morning. And when it is determined that it is more effective from the viewpoint of running cost, effective energy use, and the like, the use of electric power in the electric device can be suppressed than the use of electric power in the electric device.

  Various electric apparatuses include a hot water supply device 2 having a heating device that generates heat for hot water supply and a tank unit 3 that stores the heat generated by the heating device. According to this, during the daytime when there is sunshine, the heating operation by the heating device is stopped or the boiling temperature or boiling in the heating operation of the heating device is stopped based on the determination based on the power generation information of the solar power generation device 5 It is possible to control so as to reduce the operating capacity by decreasing the amount of heat generated. For this reason, about the electric power generation by the solar power generation device 5, it is possible to perform control to increase the amount of power sold by the solar power generation device 5 by suppressing the power use of the hot water supply device 2 while attempting to use the power in the hot water supply device 2. .

  The hot water supply ECU 30 has a power saving mode in which the operation of the hot water supply device 2 is stopped based on the determination based on the heat storage amount stored in the tank unit 3 in addition to the power generation information related to the power generation amount by the solar power generation device 5 in the daytime time zone. Determine whether or not to implement. According to this, when the heat storage amount of the tack unit 3 is sufficient, the power saving mode is executed, and when the heat storage amount is insufficient with respect to the predicted usage heat amount, the power saving mode is not executed. Can be executed. Therefore, it is possible to provide a highly mobile system capable of selecting whether to execute the power saving mode or not according to the excess or deficiency of the amount of heat available for hot water supply.

  Further, the integrated ECU 41 does not execute the power saving mode in the daytime time zone when the single use mode or the full tank mode is set. According to this control, when the full use mode or the full tank mode is set, priority is given to the set mode, and the power saving mode is canceled during the daytime period. It is possible to provide a system that preferentially applies a user-desired mode for the usage of the hot water supply device while at the same time improving the running cost.

  Further, the integrated ECU 41 displays an attention mark (recommended display setting unit 402) that is a display unit that prompts the user to enter the power saving mode on the screen of the integrated remote device 4. The integrated remote device 4 has an operation setting unit 420 that is operated when setting the power saving mode (see FIGS. 7 and 9). According to this, it is possible to notify the user that there is recommended information for the power saving mode by the attention mark displayed on the screen of the integrated remote device 4. Then, the user can set the power saving mode by selecting the power saving mode and operating the operation setting unit 420.

  Further, the integrated ECU 41 displays on the screen of the integrated remote device 4 to prompt guidance from the power saving mode to a mode other than the power saving mode (normal mode). The integrated remote device 4 has an operation setting unit 421 that is operated when another mode is set (see FIGS. 8 and 10). According to this, it is possible to notify the user that the normal mode is preferable to the power saving mode by the display for prompting the user to enter the normal mode. The user can set a mode other than the power saving mode by selecting the normal mode and operating the operation setting unit 421.

  Further, the integrated ECU 41 displays the effect obtained when the power saving mode is implemented on the screen of the integrated remote device 4. According to this, it is possible to provide a determination material when the user tries to set the power saving mode. In addition, when the device control system 1 recommends the power saving mode, it is possible to provide information that can be easily obtained by the user.

  Further, when the power saving mode is set, the integrated ECU 41 displays that the power saving mode is set on the screen of the integrated remote device 4 (see FIGS. 8 and 10). According to this, the user can recognize that the current setting is “power saving mode” by looking at the screen of the integrated remote device 4, and if the user does not change the setting state, It can be predicted that the power saving mode will be implemented.

(Second Embodiment)
In the device control system according to the second embodiment, in the device control processing procedure, whether or not the power saving mode can be performed is further determined based on the usage record of the hot water supply device 2 with respect to the flowchart of FIG. 3 described in the first embodiment. Judgment is different. That is, in the device control system of the second embodiment, as shown in the flowchart of FIG. 12, the determination process in step 22 is executed after the determination process in step 20. Moreover, 2nd Embodiment is the same as that of 1st Embodiment about the structure of an apparatus control system, and the description with reference to FIGS. 1-11 except FIG. 3, The effect is also the same. Only the parts different from the first embodiment will be described below.

  As shown in FIG. 12, when the hot water supply ECU 30 determines in step 20 similar to the flowchart of FIG. 3 that the power saving mode execution condition has been established, the hot water supply ECU 30 proceeds to step 22 and stores the past predetermined period stored in the storage device, for example, It is determined whether the number of hot water increases in the past week is less than three. The number of times of hot water increase is the number of times that the hot water was increased by the user's operation (for example, input by the input unit 422 of “tank hot water increase” in FIG. 11) in the past week. That is, the hot water increase count is an example of the actual use of the hot water supply device 2, and is the hot water increase count performed by the user himself.

  If the hot water supply ECU 30 determines in step 22 that the number of hot water increases in the past week is three or more, the heat storage capacity of the tank is insufficient in the future daytime hours, and there is a possibility that the hot water will run out. Judge. And it progresses to step 25, and in order to be able to implement the heating operation of the daytime time zone using the electric power generated by the solar power generation device 5, execution of the set modes (for example, the normal mode) other than the power saving mode is executed. The flow chart of this control is finished.

  If the hot water supply ECU 30 determines in step 22 that the number of hot water increases in the past week is less than three, the hot water supply ECU 30 determines from the past results that there is a low possibility that the amount of heat stored in the tank will be insufficient in the future daytime. Then, the process proceeds to step 30, where the execution of the power saving mode in the daytime time zone is determined, and the flowchart of this control is ended.

  According to the device control system of the second embodiment or the third embodiment described below, the integrated ECU 41 is based on the power generation information related to the amount of power generated by the solar power generation device 5 and based on the usage record of the hot water supply device 2. It is determined whether or not to implement a power saving mode in which the operation of the hot water supply device 2 is stopped. According to this, by using the usage record of the hot water supply device 2 as a criterion for determining whether or not to implement the power saving mode, it is possible to provide a determination that is suitable for the actual hot water supply performance of the user.

  Further, the integrated ECU 41 implements a power saving mode in which the operation of the hot water supply device 2 is stopped if the number of hot water increases in the past predetermined period is less than the predetermined number. According to this control, it is possible to properly determine that the amount of heat stored in the tank is not insufficient during daytime hours, based on the user-specific hot water supply results, and based on this determination, when the hot water does not run out and the user does not feel inconvenience The power saving mode can be implemented. Therefore, it is possible to provide control that achieves both prevention of hot water outbreak and increase in power sales.

(Third embodiment)
In the device control system according to the third embodiment, in the device control processing procedure, whether or not the power saving mode can be performed is further determined based on the usage record of the hot water supply device 2 with respect to the flowchart of FIG. 3 described in the first embodiment. Judgment is different. That is, in the device control system of the third embodiment, as shown in the flowchart of FIG. 13, the determination process of step 22A is executed after the determination process of step 20. In the third embodiment, the configuration of the device control system and the description with reference to FIGS. 1 to 11 excluding FIG. 3 are the same as those in the first embodiment, and the operational effects thereof are also the same. Only the parts different from the first embodiment will be described below.

  As shown in FIG. 13, when the hot water supply ECU 30 determines in step 20 similar to the flowchart of FIG. 3 that the power saving mode execution condition has been established, the hot water supply ECU 30 proceeds to step 22A and stores the past predetermined period stored in the storage device, for example, It is determined whether or not the number of emergency boiling operations for securing the minimum amount of hot water storage in the past week is less than three. The number of times of emergency boiling operation is the number of times of boiling operation that is automatically performed when the amount of hot water stored in the tank falls below the minimum amount of hot water that needs to be stored in the tank (for example, 30 L) in the past week. It is. That is, the number of times of the boiling operation is an example of the actual use of the hot water supply device 2 and is the number of times of emergency boiling operation that is performed in order to solve the shortage of the heat storage amount in the tank.

  If the hot water supply ECU 30 determines in step 22A that the number of emergency boiling operations in the past week is three or more, the heat storage capacity of the tank is insufficient in the daytime hours in the future, and the possibility of running out of water is determined based on past results. Judge that there is. And it progresses to step 25, and in order to be able to implement the heating operation of the daytime time zone using the electric power generated by the solar power generation device 5, execution of the set modes (for example, the normal mode) other than the power saving mode is executed. The flow chart of this control is finished.

  If the hot water supply ECU 30 determines in step 22 that the number of hot water increases in the past week is less than three, the hot water supply ECU 30 determines from the past results that there is a low possibility that the amount of heat stored in the tank will be insufficient in the future daytime. Then, the process proceeds to step 30, where the execution of the power saving mode in the daytime time zone is determined, and the flowchart of this control is ended.

  According to the device control system of the third embodiment, the integrated ECU 41 saves the operation of the hot water supply device 2 if the number of emergency boiling operations for securing the minimum amount of stored hot water in the past predetermined period is less than the predetermined number. Implement power mode. According to this control, it is possible to appropriately determine from the user's actual use of hot water that the amount of heat stored in the tank is not insufficient during the daytime, and based on this determination, the hot water does not run out and the user does not feel inconvenience. In some cases, a power saving mode can be implemented. Therefore, it is possible to provide control that achieves both prevention of hot water outbreak and increase in power sales.

(Fourth embodiment)
In the device control system according to the fourth embodiment, in the processing procedure of device control, whether or not the power saving mode can be performed is further determined based on the usage record of the hot water supply device 2 with respect to the flowchart of FIG. 3 described in the first embodiment. Judgment is different. That is, in the device control system of the fourth embodiment, as shown in the flowchart of FIG. 14, the determination process of step 22B is executed after the determination process of step 20. In the fourth embodiment, the configuration of the device control system and the description with reference to FIGS. 1 to 11 excluding FIG. 3 are the same as those in the first embodiment, and the operational effects thereof are also the same. Only the parts different from the first embodiment will be described below.

  As shown in FIG. 14, when the hot water supply ECU 30 determines in step 20 similar to the flowchart of FIG. 3 that the power saving mode execution condition has been established, the process proceeds to step 22B, and the past predetermined period stored in the storage device, For example, it is determined whether or not the target heat storage amount calculated from the hot water usage history in the past week is less than the maximum heat storage amount when storing heat at the maximum boiling temperature in the current operation mode. To do. This maximum amount of heat that can be stored in hot water is the maximum amount of hot water that can be stored in the tank as much as possible during boiling at midnight. In other words, if the user's use of hot water is large and the target heat storage amount exceeds the maximum heat storage capacity, it is not possible to cover the user's use of hot water only by boiling in the midnight hours. It is necessary to carry out boiling.

  If the hot water supply ECU 30 determines that the target heat storage amount calculated in step 22B is greater than or equal to the maximum hot water storage possible heat amount, from the past results, there is a possibility that the heat storage amount of the tank is insufficient in the future daytime hours and the hot water may run out. Judge. And it progresses to step 25, and in order to be able to implement the heating operation of the daytime time zone using the electric power generated by the solar power generation device 5, execution of the set modes (for example, the normal mode) other than the power saving mode is executed. The flow chart of this control is finished.

  If hot water supply ECU30 determines that the target heat storage amount calculated in step 22B is less than the maximum hot water storage heat amount, it determines from the past results that there is a low possibility that the heat storage amount of the tank will be insufficient in the daytime hours in the future. Then, the process proceeds to step 30, where the execution of the power saving mode in the daytime time zone is determined, and the flowchart of this control is ended.

  According to the device control system of the fourth embodiment, the integrated ECU 41 implements the power saving mode in which the operation of the hot water supply device 2 is stopped if the target heat storage amount is less than the maximum hot water storage possible heat amount in the past predetermined period. According to this control, it is possible to appropriately determine from the user's actual use of hot water that the amount of heat stored in the tank is not insufficient during the daytime, and based on this determination, the hot water does not run out and the user does not feel inconvenience. In some cases, a power saving mode can be implemented. Therefore, it is possible to provide control that achieves both prevention of hot water outbreak and increase in power sales.

(Fifth embodiment)
In addition to device control according to the flowchart of FIG. 3 described in the first embodiment, the device control system according to the fifth embodiment further performs a daytime operation during the boiling operation in the midnight time zone before the daytime time zone. The difference from the first embodiment is that the heat amount replenishment control for replenishing the tank with the heat amount that is insufficient when the power saving mode is performed in the time zone is performed. That is, in the equipment control system of the fifth embodiment, the heat amount replenishment control is performed in the heating operation control in the midnight hours according to the flowchart shown in FIG. In the fifth embodiment, the configuration of the device control system and the description with reference to FIGS. 1 to 11 are the same as those in the first embodiment, and the operational effects thereof are also the same. Only the parts different from the first embodiment will be described below.

  The process related to the heat quantity replenishment control is executed mainly by the hot water supply ECU 30 as in the flowchart of FIG. As shown in FIG. 15, the heat supplement control starts at a predetermined time (for example, 23:00 on the previous day) when the heating operation control in the midnight time zone is started. First, in step 100, it is determined whether or not the current setting mode is the power saving mode. For example, if the power saving mode is set in the previous daytime period, and then the full tank mode or the full use mode is not set by the user's driving operation, the mode of the previous daytime period is maintained, The current setting mode is a power saving mode.

  If hot water supply ECU 30 determines in step 100 that the power saving mode is not set, it proceeds to step 105 and executes a normal boiling operation (hereinafter also referred to as “normal boiling operation”) processing in the midnight time zone. Then, this control is finished. Normal boiling operation processing is based on past usage records and calculates the predicted usage heat amount that is predicted to be used by the next midnight time zone, and the boiling operation that can store the predicted usage heat amount in the tank at midnight. It is the process which controls the hot-water supply apparatus 2 so that it may be completed by the end of a time zone.

  When the hot water supply ECU 30 determines that the power saving mode is set in step 100, the hot water supply ECU 30 proceeds to step 110, where the boiling temperature of the boiling operation executed in the midnight time zone is set to the normal heating operation. The temperature is determined to be higher by a predetermined temperature T1 than the boiling temperature. The predetermined temperature T1 is a temperature determined in advance based on experimental data, empirical rules, and the like measured in the master device and the monitor device. For example, when the amount of stored hot water is 330 L, the heat amount of 330 kcal can be supplemented by setting T1 to 1 ° C.

  Then, in step 120, the operation for the power saving mode in which the amount of heat larger than that in the normal boiling operation is heated at the setting of the boiling temperature higher than the normal boiling temperature by the predetermined temperature T1 is executed. The flowchart ends. By the heating operation for the power saving mode, it is possible to replenish in advance the amount of stored heat that is insufficient when the power saving mode in the daytime time period thereafter is performed.

  According to the device control system of the fifth embodiment, the integrated ECU 41 uses the power saving mode in the daytime period with respect to the predicted usage heat amount predicted from the past hot water supply use results in the midnight time period before the daytime time period. The hot water supply device 2 is operated so as to compensate for the shortage of heat, and the amount of heat is stored in the tank unit 3. According to this control, by implementing the power saving mode in the daytime period, it is possible to increase both the amount of power sold by the power generation of the solar power generation device 5 and the running cost of the system, and the previous electricity bill is inexpensive. By strengthening the heating operation during a midnight time zone, it is possible to provide a control that can reduce the occurrence of hot water outage during the daytime zone and the running cost.

(Sixth embodiment)
The device control system of the sixth embodiment is different from the heat supply control described in the fifth embodiment in that step 110A is executed instead of step 110. That is, the device control system of the sixth embodiment is different from the fifth embodiment in the amount of heat supplementation control for the amount of heat supplement control performed in the heating operation control in the midnight time zone. In the sixth embodiment, the configuration of the device control system and the description with reference to FIGS. 1 to 11 are the same as those in the first embodiment, and the operational effects thereof are also the same as those in the first and fifth embodiments. is there. Only portions different from the fifth embodiment will be described below.

  As shown in FIG. 16, when it is determined in step 100 that the power saving mode is set, the processing related to the heat amount supplement control of the sixth embodiment proceeds to step 110A and performs the heating operation performed in the midnight time zone. The boiling start time is determined to be a predetermined time α earlier than the boiling start time set in the normal boiling operation. The predetermined time α is a time that is determined in advance based on the experimental data, empirical rules, and the like measured by the master device and the monitor device. For example, when the boiling start time is advanced by α hours, the boiling time can be set longer, and the boiling operation can be completed more reliably in the midnight time zone.

  Then, in step 120A, the operation for the power saving mode in which the amount of heat larger than that in the normal boiling operation is heated with the setting of the boiling start time that is earlier than the normal boiling start time by a predetermined time α is performed. The control flowchart ends. With the heating operation for the power saving mode, it becomes possible to replenish in advance the heat storage amount that is insufficient when the power saving mode in the subsequent daytime period is performed in the midnight time period.

(Other embodiments)
In the above-described embodiment, the preferred embodiment of the present invention has been described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. It is. The structure of the said embodiment is an illustration to the last, Comprising: The scope of the present invention is not limited to the range of these description. The scope of the present invention is indicated by the description of the scope of claims, and further includes meanings equivalent to the description of the scope of claims and all modifications within the scope.

  In the device control system 1 included in the present invention, various electric devices are operated using the power generated by the solar power generation device 5 and the system power 9. That is, various electric devices are operated using only the power supplied from the solar power generation device 5, operated using only the system power 9, and the power from the solar power generation device 5. In some cases, the system power 9 is used for operation.

  The device control system according to the present invention includes a device control system 1A that further includes a storage battery 10 in addition to the device control system 1 described in the first embodiment (see FIG. 17). The storage battery 10 can store the power generated by the grid power 9 and the solar power generation device 5, and can supply the stored power to various electric devices or sell the power. .

  In the above embodiment, the embodiment using the hot water supply device using the heat pump unit as the heating device for heating the hot water supply water has been described. However, the hot water supply device included in the present invention is a hot water supply water between the hot water storage tank and the heating device. Any hot water supply apparatus having an electrically driven device such as a water pump for circulating the gas may be used, and a hot water supply apparatus using a gas combustor or the like as a heating apparatus may be used.

  In each of the above embodiments, the various controls are described as being executed by the hot water supply ECU 30, but may be executed by the integrated ECU 41. Also, the hot water supply ECU 30 and the integrated ECU 41 do not communicate with each other by separate control devices, but the hot water supply ECU 30 and the integrated ECU 41 are integrated control devices, or the hot water supply device in which the integrated ECU 41 controls the operation of the hot water supply device 2. It may have a function of the ECU 30.

  In the second embodiment and the third embodiment, on the basis of the usage record of the hot water supply device 2 such as the number of times of hot water increase in the past week and the number of times of boiling to ensure the minimum amount of hot water stored in the past week, the saving in the daytime period Although it is determined whether or not the power mode can be implemented, the determination is not limited to this criterion. For example, according to the average value per day of the amount of hot water used in the past week and a value obtained by adding a deviation to this average value, the possibility of insufficient heat storage may be used as a criterion.

2 ... Hot water supply device (electric device)
3 ... Tank unit 4 ... Integrated remote device (remote control device)
5 ... Solar power generation device 7 ... Air conditioner 9 ... System power 20 ... Heat pump unit (heating device)
41. Integrated ECU (control device)

Claims (13)

A solar power generation device (5) capable of generating electricity using energy obtained from sunlight and selling the surplus of the generated power;
An electric device (2, 7) operated using the electric power generated by the solar power generation device and the system power (9);
A control device (41) for controlling the operation of each of the photovoltaic power generation device and the electrical device;
With
In the daytime period included from sunrise to sunset, the control device may stop the operation of the electric device or reduce the operation output based on the determination based on the power generation information related to the power generation amount of the solar power generation device. A device control system that implements a power mode.   The control device stops the operation of the electric device or reduces the operation output when it is determined that the power generation amount in the morning predetermined time range by the solar power generation device is equal to or greater than a predetermined amount. A device control system characterized by that.   The electric device includes a hot water supply device (2) having a heating device (20) for generating heat for hot water supply and a tank unit (3) for storing the heat generated by the heating device. The device control system according to claim 1 or 2.   Furthermore, the said control apparatus implements the power saving mode which stops the driving | operation of the said hot-water supply apparatus in the said daytime time slot | zone based on the judgment based on the heat storage amount stored in the said tank unit. Equipment control system.   The device control according to claim 3, wherein the control device further performs a power saving mode in which the operation of the hot water supply device is stopped during the daytime time period based on a determination based on a usage record of the hot water supply device. system.   The control device is a time zone before the daytime time zone, and in a predetermined time zone where the electricity bill is cheaper than the daytime time zone, with respect to the predicted use heat amount predicted from the past hot water supply use results, The apparatus control system according to claim 3, wherein the hot water supply device is operated to store the heat amount in the tank unit so as to make up for the shortage of heat amount due to the power saving mode during the daytime period. The control device has a single-use mode in which the hot water supply device is operated so that the amount of heat stored in the tank unit is used up, and a full tank mode in which the hot water supply device is operated so as to store heat in the tank unit in a full tank state. And is configured to carry out
The said control apparatus does not implement the said power saving mode in the said daytime time slot | zone, when the said exhaust mode or the said full tank mode is set. The device control system according to one item.   When the amount of heat stored in the tank unit falls below a predetermined amount during the daytime period, the control device operates the hot water supply device even when a condition for executing the power saving mode is satisfied. The device control system according to any one of claims 3 to 7, wherein heat is stored in the tank unit.   9. The apparatus control system according to claim 8, wherein the predetermined amount is set to a minimum heat storage amount that needs to be stored in the tank unit at a minimum in a normal mode other than the power saving mode. A remote control device (4) for displaying the amount of power generated by the solar power generation device and displaying hot water supply information related to a hot water supply operation by the hot water supply device,
The control device displays a display unit (402) for prompting the user to enter the power saving mode on the remote control device,
The device control system according to any one of claims 3 to 9, wherein the remote control device includes an operation setting unit (420) that is operated when the power saving mode is set. The control device displays on the remote control device a prompt for guidance from the power saving mode to a mode other than the power saving mode,
The device control system according to claim 10, wherein the remote control device includes an operation setting unit (421) that is operated when the other mode is set.   The device control system according to claim 10 or 11, wherein the control device displays an effect obtained when the power saving mode is implemented on the remote operation device. A remote control device (4) for displaying the amount of power generated by the solar power generation device and displaying hot water supply information related to a hot water supply operation by the hot water supply device,
13. The control device according to claim 1, wherein when the power saving mode is set, the control device displays on the remote control device that the power saving mode is set. Equipment control system as described in.

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