JPH05292672A - Energy controller - Google Patents

Abstract

PURPOSE: To enable a general power consumer to reversely send a surplus, while consuming power by providing an energy controller with a surplus estimating means for estimating excess of the energy in an energy storage means, and a means to reversely send the excess of the stored energy. CONSTITUTION: A power that has been received from the outside is stored temporarily in the storage battery unit 31 of a power unit 15. Next, a controller estimates the surplus of the power in the storage battery unit 31, based on the consumption state of load. That is, in the case that it has judged that the quantity of the stored power is above the quantity of consumed power, the indoor load is supplied with a power from the storage battery unit 31, and also the surplus power of the storage battery unit 31 is sent out to a distribution line through an inverter unit 33, in the time zone, when the electricity on sale comes to a high price. Hereby, the surplus can be sent back, while consuming energy only for the required quantity from among the one stored temporarily.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to energy consumption and sale techniques.

[0002]

2. Description of the Related Art Conventionally, for example, a technique has been considered in which electric power received from an electric power company at night is temporarily stored in a storage battery and reversely transmitted during the daytime. This is a technology for obtaining profits by using a time-slot charge system, that is, a system of discounting the power charge at night when the power is surplus and increasing the power charge during the daytime when the power is insufficient.

[0003]

However, since the conventional technology merely stores the received electric power and then reversely transmits the electric power as it is, the general electric power consumer consumes the electric power, but only the surplus portion is consumed. Could not be reverse transmitted. For this reason, there is a problem that not only a high profit cannot be obtained, but also only a loss due to power storage and orthogonal transformation increases.

An object of the present invention is to provide an energy control device that solves the above problems.

[0005]

An energy control device of the present invention is an energy purchase means for purchasing energy from an energy supply path, an energy storage means for storing energy purchased by the energy purchase means, and the above purchase. ,
Alternatively, an energy consuming means for consuming the stored energy, and a surplus amount estimating means for estimating a surplus amount of energy in the energy storing means based on an energy consumption state by the energy consuming means, and a storage in the energy storing means. The gist of the present invention is to provide an energy sending means for sending the stored energy to the supply path by the surplus amount.

[0006]

In the energy control device of the present invention, the energy purchasing means purchases energy from the energy supply path, the energy storing means stores energy, and the energy consuming means consumes energy. On the other hand, the surplus amount estimating means estimates the surplus amount of energy in the energy storage means based on the state of energy consumption by the energy consuming means, and the energy sending means sends the surplus amount of energy from the energy storing means to the supply path.

Therefore, the energy consuming means can consume a desired amount of energy stored in the energy storing means, and the surplus amount of energy in the energy storing means is sent to the supply path.

[0008]

EXAMPLES Next, examples of the present invention will be described. FIG. 1 is an overall configuration diagram of a home energy control system 1. The house energy control system 1 includes a lead-in port 2, an electricity meter 3, an electromagnetic switch 5, a current sensor 7, branch switches 9, 10 ,,
11, 12, 13, power unit 15, and air conditioner 1
7, a control device 19, and a water heater 23.

FIG. 2 is a block diagram of the electric energy meter 3. The electric energy meter 3 includes an input terminal 3A, an output terminal 3B, a voltage sensor 3C, current sensors 3D and 3E, an electric energy calculation unit 3F, and a meter 3G. The input terminal 3A is
As shown in FIG. 1, it is connected to the lead-in port 2, and the output terminal 3B is connected to the electromagnetic switch 5. The electric energy calculation unit 3F includes a voltage sensor 3C and current sensors 3D and 3E.
The electric energy is calculated based on the output values of and.

The meter 3G includes an A meter 3GA, a B meter 3GB, a C meter 3GC, and a D meter 3GD. The A meter 3GA and the B meter 3GB are for integrating the amount of received power, and the A meter 3GA is
The amount of electricity in the normal charge time zone is measured, and the B meter 3GB is
Measure the amount of electricity in the special charge time zone. Discount rates are usually applied during the special charge hours. C meter 3GC,
The D meter 3GD is for accumulating the amount of transmitted power, the C meter 3GC measures the amount of power in the first charge time zone, and the D meter 3GD measures the amount of power in the second charge time zone. .. The first charge time zone is a reverse power transmission recommended time zone, and the second charge time zone is a reverse power transmission possible time zone.

FIG. 3 is a block diagram of the power unit 15. The power unit 15 includes a power purchase charging unit 29,
Storage battery unit 31, inverter unit 33, input / output changeover switches 35 and 36, and communication interface 3
7, a current / voltage sensor 41, and terminals 48 and 49.

The terminal 48 is connected to the branch switch 9, as shown in FIG. The terminal 49 is connected to the control device 19. The power purchase charging unit 29 includes a power purchase connection terminal 29A, an output terminal 29B, and a control terminal 29C. The power purchase connection terminal 29A is the input / output changeover switch 3
It is connected to the terminal 48 via 5. Output terminal 29B
Are connected to the input / output changeover switch 36. The control terminal 29C is connected to the communication interface 37. The power purchase charging unit 29 controls the charge amount according to a signal applied to the control terminal 29C.

The storage battery unit 31 includes a current / voltage sensor 4
It is connected to the input / output changeover switch 36 via 1.
The inverter unit 33 includes an input terminal 33A, an output terminal 33B, and a control terminal 33C. The input terminal 33A is connected to the input / output changeover switch 36.
The output terminal 33B is connected to the input / output switch 36. The control terminal 33C is connected to the communication interface 37. The inverter unit 33 has a cooperation protection function with a distribution line, converts the DC applied to the input terminal 33A into AC power, and outputs the AC power to the output terminal 33B.
The signal applied to the control terminal 33C controls the converted electric energy.

The input / output changeover switch 35 includes a changeover switch 35A, an operation coil 35B, terminals 35C and 35D,
35E and. The operation coil 35B is connected to the communication interface 37. The terminal 35C is connected to the terminal 48. Terminal 35D is a power purchase connection terminal 2
9A, and the terminal 35E is connected to the output terminal 33B. The changeover switch 35A selectively connects between the terminals 35C and 35E or between the terminals 35C and 35D. The operation coil 35B switches the changeover switch 35A.

The input / output changeover switch 36 includes a changeover switch 36A, an operating coil 36B, terminals 36C and 36D,
And 36E. The operation coil 36B is connected to the communication interface 37. The terminal 36C is connected to the storage battery unit 31 via the current / voltage sensor 41. The terminal 36D is connected to the input terminal 33A, and the terminal 36E is connected to the output terminal 29B. The changeover switch 36A selectively connects the terminal 36C and the terminal 36E or the terminal 36C and the terminal 36D. The operation coil 36B switches the changeover switch 36A.

The current / voltage sensor 41 is interposed between the input / output switch 36 and the storage battery unit 31, and outputs a voltage value and a current value to the communication interface 37.
The serial side of the communication interface 37 is connected to the terminal 49, and the parallel side thereof is connected to each part in the power unit 15. The communication interface 37 executes data communication with the control device 19.

FIG. 4 shows a block diagram of the air conditioner 17. The air conditioner 17 includes a heat pump unit 61, heat exchanger units 63 and 65, a heat storage tank unit 67, and an electromagnetic opening / closing valve 6.
9, 71, 73, pumps 75, 77, solenoid valve 79
A power board 81, a control device 83, and a refrigerant pipe 85.

The heat pump unit 61 discharges the cooled or heated refrigerant from the output side 61A and sucks the returned refrigerant from the input side 61B. Heat exchanger unit 6
The refrigerants 3, 65 suck the refrigerant from the input sides 63A, 65A, exchange the heat, and discharge the refrigerant to the output sides 63B, 65B. The heat exchanger units 63 and 65 are the control units 63C and 6
5C, the air temperature sensors 63D and 65D, the air temperature sensors 63E and 65E, and the blowers 63F and 65F. The control units 63C and 65C are connected to the control device 83, and are also connected to the air temperature sensors 63D and 65D, the air temperature sensors 63E and 65E, and the blowers 63F and 65F. The control units 63C and 65C control the operating states of the heat exchange units 63 and 65, calculate the amount of heat consumed by the heat exchange units 63 and 65, and send them to the control device 83. The heat consumption amount is calculated based on the operating amounts of the blowers 63F and 65F and the input / output temperature.

The heat storage tank unit 67 draws in the refrigerant from the input side 67A, exchanges heat with the heat storage medium, and discharges it to the output side 67B. The refrigerant pipe 85 includes an output side 61A of the heat pump unit 61, a port 79A of a solenoid valve 79,
While connecting between the input sides 63A, 65A of the heat exchanger units 63, 65, the input side 61B of the heat pump unit 61, the port 79B of the solenoid valve 79, the output sides 63B, 65B of the heat exchanger units 63, 65. Connect between and. Further, the refrigerant pipe 85 is connected to the port 79C of the solenoid valve 79.
Is connected to the input side 67A of the heat storage tank unit 67, and the port 79D of the solenoid valve 79 is connected to the output side 67B of the heat storage tank unit 67. The refrigerant pipe 85 is
It has a bifurcated portion 85A.

The electromagnetic opening / closing valve 69 is interposed between the output side 61A of the heat pump unit 61 and the bifurcated portion 85A. The solenoid opening / closing valve 73 includes a two-branch portion 85A and a port 7.
It is interposed between 9A and 9A. The solenoid valve 71 is interposed between the bifurcating portion 85A and the input sides 63A and 65A.

The pump 75 includes a bifurcated portion 85A and a solenoid valve 7.
It is interposed between 1 and 1. The pump 77 has a solenoid valve 79.
Is provided between the port 79C and the input side 67A. The power board 81 is connected to the pumps 75 and 77 and supplies electric power to these.

The control device 83 includes solenoid valves 69, 71,
73 and a solenoid valve 79. Air conditioner 17
As shown in Table 1, the respective units are operated to perform the normal cooling mode, the cold heat storage mode, the heat storage cooling mode, the heat radiation cooling mode, the normal heating mode, the heat storage mode, the heat storage heating mode, and the heat radiation heating mode.

[0023]

[Table 1]

In the normal cooling mode and the normal heating mode, the heat pump unit 61 and the heat exchanger unit 6 are used.
It is operated with 3,65. Cold heat storage mode,
In the heat storage mode, cold heat or heat generated by the heat pump unit 61 is stored in the heat storage tank unit 67.

In the heat storage cooling mode and the heat storage heating mode, the cold heat generated by the heat pump unit 61,
Alternatively, heat is transferred to the heat storage tank unit 67 and the heat exchanger unit 6
3, 65. In the heat radiation cooling mode and the heat radiation heating mode, cold heat or heat stored in the heat storage tank unit 67 is supplied to the heat exchanger units 63 and 65.

FIG. 5 is a block diagram of the water heater 23. The water heater 23 includes a hot water tank 91, a heater 93, and a solenoid valve 9
5, 96, a temperature sensor 97, a water amount sensor 99, a control device 101, a water supply pipe 103, and a water supply pipe 105.

The heater 93 is arranged in the hot water tank 91 and is connected to the control device 101. Solenoid valve 9
5 is attached to the water supply pipe 103, and the control device 1
01 is connected.

The temperature sensor 97 is mounted in the hot water tank 91 and connected to the control device 101. The water amount sensor 99 is mounted in the hot water tank 91 and connected to the control device 101.

The electromagnetic valve 96 is attached to the water supply pipe 105 and is connected to the control device 101. Figure 6
3 is a configuration diagram of a control device 101. FIG. The control device 101 is C
It includes a PU 111, an input interface 113, an output interface 115, a communication interface 117, a current control circuit 119, and an earth leakage breaker 121.

The CPU 111 uses the input interface 11
3, the output interface 115, and the communication interface 117. The CPU 111 has a one-chip microcomputer configuration including well-known ROM and RAM. The input interface 113 is connected to the temperature sensor 97 and the water amount sensor 99, inputs a temperature signal from the temperature sensor 97, and inputs a water amount signal from the water amount sensor 99. The output interface 115 is
It is connected to the solenoid valves 95 and 96, and outputs a signal instructing the respective opening degrees.

The communication interface 117 is used for the control device 1.
9 is connected. The current control circuit 119 is connected to the branch switch 10 and the earth leakage breaker 121, and controls the waveform of the single-phase AC power supplied from the branch switch 10 based on the signal from the output interface 115. , To the earth leakage breaker 121.

The water heater 23 adjusts the opening of the solenoid valves 95 and 96 and controls the water temperature in the hot water tank 91 based on the signal from the controller 19. FIG. 7 is a basic flowchart of the water heater control. The water heater control is repeatedly executed by the CPU 111 shown in FIG.
In the water heater control, first, the water supply pipe control is activated every predetermined time (step 1000, hereinafter, the step is simply referred to as S). Next, the water pipe control is activated every predetermined time (S1100). Next, the energization amount control is activated every predetermined time (S1200). These are all time interrupted.

FIG. 8 shows a flow chart of the water supply pipe control process. When the water supply pipe control is activated, first, the instruction water temperature is input (S1300). The instruction water temperature is instructed by the control device 19. Next, the water temperature is input (S1
310). The temperature sensor 97 inputs the water temperature. As a result, the temperature in the hot water tank 91 is input. Next, it is determined whether the water temperature has reached the instructed water temperature (S1320). If the indicated water temperature has already been reached, this routine is terminated, and if the indicated water temperature has not yet been reached,
Next, input of the indicated water amount (S1330) and input of the water amount (S1
340) is executed. The control device 19 inputs the instruction water amount through the communication interface 117. The amount of water is input from the water amount sensor 99.

Next, it is judged whether or not the amount of water has reached the instructed amount of water (S1350). If it has reached, this routine is once terminated, and if it has not reached, the solenoid valve is "opened" for a predetermined time. Execute (S1360). Here, the solenoid valve 9
5 is controlled to the open side for a predetermined time. The predetermined time is as shown in FIG.
Set several times the round-trip time of the routine.

After controlling the opening of the solenoid valve 95, the processing is shifted to the beginning of this routine. By this water supply pipe control process, the warm water at the designated water temperature and the designated water amount is supplied to the warm water tank 91.
Can be satisfied. FIG. 9 is a flowchart of a water pipe control processing routine.

First, input of the designated water supply amount (S1400),
Input of water volume (S1410), calculation of water volume (S142)
0) are sequentially executed. The instruction water supply amount is input from the control device 19. Here, a value obtained by subtracting a desired residual water amount from the full water amount of the warm water tank 91 is set as the instruction water supply amount. The water amount is a value indicating the remaining water amount, and the value is input from the water amount sensor 99. The amount of water to be sent is calculated based on the amount of water. Here, the amount obtained by subtracting the residual water amount from the full water amount in the warm water tank 91 is regarded as the water supply amount.

Next, it is judged whether or not the water supply amount reaches the instructed water supply amount (S1430). If the water supply amount has reached the instructed water supply amount, this routine is once terminated, and if not, the solenoid valve is opened for a predetermined time (S1440). That is, if water can be sent, the solenoid valve 96 is controlled to the open side for a predetermined time.

As a result, the amount of water sent from the water heater 23 can be controlled by the controller 19. FIG. 10 is a flowchart of the energization amount control processing routine. First, the instruction energizing amount is input (S1500), the instruction water temperature is input (S1510), and the water temperature is input (S1520). The instruction energization amount is a value indicating a percentage of the energization time of the power source supplied to the heater 93, and is input from the control device 19.

The indicated water temperature is a value indicating the hot water temperature in the hot water tank 91, and is input from the control device 19. The water temperature is input from the temperature sensor 97. Next, it is determined whether the water temperature has reached the instructed water temperature (S1530). If the water temperature has reached the instructed water temperature, this routine is temporarily terminated as it is, and if not reached, a process of energizing at the instructed current amount for a predetermined time is executed (S1540). Here, the current control circuit 119 outputs a signal instructing the instruction energization amount and the energization time.

After energization, the process returns to the beginning of this routine.
According to this energization amount control processing routine, the current passed from the electromagnetic switch 5 to the heater 93 can be controlled by the controller 19 to a desired state. FIG. 11 shows the control device 1.
It is a block diagram of 9.

The control device 19 uses the input interface 13
1, CPU 133, ROM 135, RAM 137
An output interface 139, a communication interface 141, a keyboard 143, and a display 145.
And an external storage device 147 and a solar radiation prediction device 151. The solar radiation prediction device 151 is connected to the input interface 131, determines the future weather condition from the regional characteristics of the measurement point and the change state of the atmospheric pressure, estimates the solar radiation amount of the next day, and injects the solar radiation into the CPU 133. It is a device that outputs a prediction.

Next, the processing executed by the control device 19 will be described. FIG. 12 is a flowchart of the consumption amount learning processing routine. The consumption learning processing routine is CP
It is activated by the U133 every predetermined time. First, the consumption current value is input (S2300). As the current consumption value, the instruction value of the current sensor 7 is input to the input interface 131.
It is done by inputting via. After inputting the consumption current value, the power consumption amount for each time is calculated (S231).
0). Next, the hourly average power consumption on the same day of the previous week is read (S2320). The hourly average power consumption is input from the RAM 137.

Next, the hourly average power consumption of the previous week is corrected by the power consumption of today to calculate the average power consumption of each hour of the day (S2330), and the calculated average power consumption is R
It is stored in the area of today's day of week of AM137 (S234).
0). By this consumption amount learning routine, the average power consumption amount for each day of the week and every hour is created as a table in the RAM 137.

FIG. 13 is a flowchart of the charge control processing routine. The charge control process is executed by the CPU 133 at predetermined time intervals. First, it is determined whether it is the cheapest time (S2600). The determination of the cheapest time is made based on the billing information previously input from the keyboard 143. For example, when it is input that the cheapest time is from 23:00 to 7:00, the cheapest determination is made based on this data.

If it is determined that the battery is not the cheapest, this routine is once terminated, and if it is determined that the battery is the cheapest, it is next determined whether the storage battery is in a fully charged state (S2610). .. The judgment of the full charge state is made by a charge state calculation routine (not shown) based on the output value of the current / voltage sensor 41. Here, it is performed based on the integrated value of the input and output. If it is in the fully charged state, this routine is once ended.

If the storage battery is not in the fully charged state, then the chargeable capacity is calculated (S2620). The chargeable capacity is determined based on the output of the current sensor 7 and the power receiving capacity input in advance from the keyboard 143. Here, a value obtained by subtracting the output value of the current sensor 7 from the receivable capacity is calculated as the rechargeable capacity.

Next, the storage battery is charged with a chargeable capacity (S2630). This is performed by outputting a signal instructing the charging value to the power purchase charging unit 29. By the above charge control, charging can be performed with 100% power receiving capability during the cheapest time.

FIG. 14 is a flow chart of a power sale judgment routine, and FIG. 15 is an explanatory diagram of power charges. Power sale judgment is C
It is executed every predetermined time by the PU 133. First, the purchase price is input (S2700). The purchase price is
It is input in advance from the keyboard 143. For example, in FIG.
The power purchase price as indicated by the solid line is input. Next, the sale price is input (S2710). The sale price is
It is input in advance from the keyboard 143. For example, in FIG.
The power sale price indicated by the dotted line is input to. Next, the conversion efficiency is input (S2720). The conversion efficiency is input in advance from the keyboard 143. The conversion efficiency is a total efficiency of converting the purchased electric power into direct current, temporarily storing it, converting it into alternating current again, and transmitting the electric power, and is a value obtained by an experiment in advance.

Next, the profit of selling electricity is calculated (S2).
730). This is because when the value is the cheapest by referring to the value input by S2700 to S2720 (see, for example, FIG.
This is a process for calculating the profit per 1 [KWH] when the power is received at the price A1 of 5), is temporarily stored, and is transmitted at the highest price (for example, at the price B3 of FIG. 15). If you get a profit, you get a positive value, and if you get a loss, you get a negative value.

After the profit is calculated, it is determined whether or not the profit is generated (S2740), and if the profit is generated, a flag permitting power sale is set (S2750). Is set (S2760). Both flags are R
It is set in a predetermined area in AM137.

FIG. 16 is a flowchart of the discharge control processing routine. The discharge control is executed by the CPU 133 at predetermined time intervals. First, it is determined whether it is the highest valuation time (S2800). Keyboard 1 is the highest valuation time
It is judged according to the current time based on the sale price that is input in advance from 43. For example, if the current time is from 10:00 to 17:00, which is the time zone of the price B3 in FIG. 15, it is determined that it is the highest price time. Here, if it is determined that it is not the maximum valuation time, this routine is once terminated, and if it is the maximum valuation time, then it is determined whether or not the power consumption amount is larger than the stored power amount. Power consumption is S2
At 340, based on the average power consumption amount stored in the RAM 137, the power is consumed during the time period when the power sale becomes high price (here, the time period of the price A2 in FIG. 15, from 7:00 to 23:00). It is the electric energy estimated to be. The stored power amount is the amount of power stored in the storage battery unit 31, and the value in the fully charged state is used here. That is,
In S2810, it is determined whether or not the electric energy stored in the storage battery unit 31 has a surplus.

If it is determined that the power consumption amount is larger than the stored power amount, then control for consuming all the power of the storage battery is executed (S2820). That is, when the power purchase is in an expensive time zone, first, the power reception from the outside is stopped, and the power stored in the storage battery unit 31 is transmitted to the indoor wiring. The power reception from the outside is stopped by turning off the electromagnetic switch 5.

On the other hand, when it is determined that the stored power amount is equal to or more than the power consumption amount, it is determined whether or not to sell the power next (S2830). Power sale judgment is S2750, or S
This is performed based on the set state of the 2760 flag. If it is determined that the power is not to be sold, the routine is temporarily terminated, and if it is determined that the power is to be sold, the power consumption is supplied from the storage battery (S284).
0), sell the power exceeding the consumption (S2850). That is, when the power sale is in an expensive time zone, the storage battery unit 31 supplies power to the indoor wiring, and the surplus power of the storage battery unit 31 is reversely transmitted to the outside. In the reverse power transmission, the inverter unit 33 sends the power of the storage battery unit 31 to the distribution line.

By this discharge control, when power is purchased at the highest price, surplus power can be reversely transmitted to obtain a profit.
In the present embodiment described above, the electric power received from the outside is temporarily stored in the storage battery unit 31, and is consumed indoors, while performing air conditioning and hot water supply, and the amount stored in excess of the electric power consumed by these, Reverse power is transmitted to the distribution line. Moreover,
This reverse power transmission is executed under the condition that the maximum profit is obtained.

As a result, according to the present embodiment, there is an extremely excellent effect that the house energy control system 1 is provided which can maximize the profit while consuming the electric power by itself. The present invention is not limited to the above embodiments, and various embodiments can be implemented without changing the gist of the present invention.

For example, in the embodiment, the electric power of the electric lamp is received and the electric power is again transmitted to the electric power distribution line again. However, instead of this, the electric power is received from the power distribution line, and after temporary storage, the electric power is distributed to the electric power distribution line. It may be reverse power transmission. As a result, a profit can be obtained when the electricity charges differ depending on the service entrance. Further, the present invention is not limited to residential use, but may be applied to private power receiving equipment.

[0057]

The energy control device of the present invention can consume a desired amount of energy stored in the energy storage means, and can send out an excess amount of energy in the energy storage means to the supply path. ..

As a result, the surplus amount can be sent back while consuming the required amount of energy from the temporary storage. Therefore, it is extremely excellent that you can buy back when the purchase price of energy is cheap and send back the surplus while consuming this energy, and obtain the maximum profit of sale while keeping the purchase price to the minimum. Produce the effect.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a house energy control system 1.

FIG. 2 is a configuration diagram of an electric energy meter 3.

FIG. 3 is a configuration diagram of a power unit 15.

FIG. 4 is a configuration diagram of an air conditioner 17.

FIG. 5 is a configuration diagram of a water heater 23.

FIG. 6 is a configuration diagram of a control device 101.

FIG. 7 is a flowchart of a water heater control processing routine.

FIG. 8 is a flowchart of a water supply pipe control processing routine.

FIG. 9 is a flowchart of a water pipe control processing routine.

FIG. 10 is a flowchart of an energization amount control processing routine.

FIG. 11 is a configuration diagram of a control device 19.

FIG. 12 is a flowchart of a consumption amount learning processing routine.

FIG. 13 is a flowchart of a charge control processing routine.

FIG. 14 is a flowchart of a power sale determination processing routine.

FIG. 15 is an explanatory diagram of charges.

FIG. 16 is a flowchart of a discharge control processing routine.

[Explanation of symbols]

1 ... Residential energy control system, 2 ... Inlet, 3 ... Electric energy meter, 3A ... Input terminal, 3B ... Output terminal, 3C ... Voltage sensor, 3D ... Current sensor, 3F ... Electric energy calculation unit,
3G ... meter, 3GA ... A meter, 3GB ... B meter,
3GC ... C meter, 3GD ... D meter, 5 ... electromagnetic switch, 7 ... current sensor, 9 ... branch switch, 10 ... branch switch, 15 ... power unit, 17 ... air conditioner, 19 ... control device, 23 ... hot water Machine, 29 ... Purchased charging unit, 29A
... power purchase connection terminal, 29B ... output terminal, 29C ... control terminal, 31 ... storage battery unit, 33 ... inverter unit, 33A ... input terminal, 33B ... output terminal, 33C ... control terminal, 35 ... input / output switch, 35A ... Changeover switch, 35B ... Operation coil, 35C ... Terminal, 35D ... Terminal, 35E ... Terminal, 36 ... Input / output changeover switch, 36A
... Changeover switch, 36B ... Operating coil, 36C ... Terminal,
36D ... Terminal, 36E ... Terminal, 37 ... Communication interface, 41 ... Current / voltage sensor, 48 ... Terminal, 49 ... Terminal,
61 ... Heat pump unit, 61A ... Output side, 61B
Input side, 63 ... Heat exchange unit, 63 ... Heat exchanger unit, 63A ... Input side, 63B ... Output side, 63C ... Control unit, 63F ... Blower, 67 ... Heat storage tank unit, 6
7A ... Input side, 67B ... Output side, 69 ... Electromagnetic on-off valve, 7
1 ... Solenoid valve, 73 ... Solenoid on-off valve, 75 ... Pump, 77 ...
Pump, 79 ... Solenoid valve, 79A ... Port, 79B ... Port, 79C ... Port, 79D ... Port, 81 ... Power board,
83 ... Control device, 85 ... Refrigerant pipe, 85A ... Bifurcating part, 9
1 ... Warm water tank, 93 ... Heater, 95 ... Solenoid valve, 96 ...
Solenoid valve, 97 ... Temperature sensor, 99 ... Water amount sensor, 101
... control device, 103 ... water supply pipe, 105 ... water supply pipe, 113
... input interface, 115 ... output interface,
117 ... communication interface, 119 ... current control circuit,
121 ... earth leakage breaker, 131 ... input interface,
139 ... Output interface, 141 ... Communication interface, 143 ... Keyboard, 145 ... Display, 1
47 ... External storage device, 151 ... Solar radiation prediction device

Claims (1)

[Claims] 1. An energy purchasing means for purchasing energy from an energy supply path, an energy storing means for storing energy purchased by the energy purchasing means, and an energy consuming means for consuming the purchased energy or the stored energy. A surplus amount estimating means for estimating a surplus amount of energy in the energy storage means based on a state of energy consumption by the energy consuming means, and the energy stored in the energy storage means for the surplus amount. An energy control device comprising: an energy delivery means for delivering the energy to a road.