JP6754615B2 - Incentive calculation system and control method of incentive calculation system - Google Patents

Description

The present invention relates to an incentive calculation system and a control method for the incentive calculation system.

In recent years, the number of power storage facilities installed in consumers has increased. The installation of power storage equipment enables peak shift of electric power, which promotes load leveling and contributes to the efficiency of business operations of electric power retail electric power companies, power transmission and distribution companies, and power generation companies. On the other hand, consumers who have installed power storage equipment can benefit from the power storage equipment because they can supply power even in an emergency, that is, during a power outage of commercial power. In addition, it is economical to purchase commercial electricity and store it in the electricity storage facility during the time when the electricity rate is low, which is set by the retail electricity company, and use the electricity stored during the time when the electricity rate is high. Benefits can be obtained (see, for example, Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2014-30334 Japanese Patent No. 5576218

However, due to changes in the power generation composition of power generation companies and the division into power generation business, power transmission and distribution business, and retail electricity business, it is possible that the current low nighttime rate setting will disappear, and in that case, demand The benefits of installing home power storage equipment are reduced. In addition, in order to keep the price of electricity supplied to consumers low, power generation companies, power transmission and distribution companies, retail electricity companies, etc. can control the electricity storage facilities of consumers to improve business profitability. It is being considered. Furthermore, in the future, electricity consumers will install storage batteries at their own expense, and power generation companies, power transmission and distribution companies, retail electricity companies, energy resource aggregators, energy management companies, etc. will pay all or part of the cost. It is also considered that the electricity will be borne and installed on the premises of the electricity consumer.

In these cases, a mechanism for creating incentives that can be enjoyed by the installers of the electricity storage equipment installed is required.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an incentive calculation system and an incentive calculation system capable of realizing a highly convincing and sustainable power supply and demand mechanism utilizing a storage battery. The purpose is to provide a control method.

One aspect of the control method of the incentive calculation system of the present invention is an incentive calculation system for calculating an incentive for an installer of a power storage facility, from the equipment of the consumer facility of the installer according to the intention of the installer. The non-provided storage capacity that can be changed by transmitting data including the non-provided storage capacity, and is based on the non-provided storage capacity secured in the power storage facility and the storage capacity including the non-provided storage capacity. A calculation unit that calculates the available storage capacity by subtracting the non-provided storage capacity from the capacity, multiplies the available storage capacity by the first coefficient, and then adds the second coefficient to calculate the incentive . It has a receiving unit that receives the non-provided storage capacity set according to the intention from the installer for each predetermined period, and the calculation unit receives the non-provided storage capacity when the receiving unit receives the non-provided storage capacity. The available storage capacity is calculated by subtracting the received non-provided storage capacity from the storage capacity, and the second coefficient is added after multiplying the provideable storage capacity by the first coefficient .
One aspect of the control method of the incentive calculation system of the present invention is that in the above-mentioned incentive calculation system, the first measurement value, which is the measurement value of the power meter for power purchase at the consumer facility, and the measurement of the power meter for selling power. Electricity charge calculation that calculates the electricity purchase charge of the electricity purchased by the consumer of the customer facility and the electricity sales charge of the sold electricity according to a predetermined calculation method based on the second measurement value which is a value. It has a unit, a billing amount calculation unit that calculates a billing cost based on a power purchase charge and a power sale charge calculated by the electricity charge calculation unit, and an incentive calculated by the calculation unit.

One aspect of the control method of the incentive calculation system of the present invention is a control method of an incentive calculation system having a calculation unit and a reception unit for calculating an incentive for an installer of a power storage facility, and the calculation unit is the installer. The non-provided storage capacity that can be changed by transmitting data including the non-provided storage capacity from the equipment of the customer facility of the installer according to the intention from the above, and the non-provided storage capacity secured in the storage facility and the above The available storage capacity is calculated by subtracting the non-provided storage capacity from the storage capacity based on the storage capacity including the non-provided storage capacity, and the available storage capacity is multiplied by the first coefficient. The incentive is calculated by adding the second coefficient in, the receiving unit receives the non-provided storage capacity set according to the intention from the installer at a predetermined period, and the calculation unit receives the non-provided storage capacity. When the receiving unit receives the non-provided storage capacity, the available non-provided storage capacity is calculated by subtracting the received non-provided storage capacity from the stored capacity, and the available storage capacity is multiplied by the first coefficient and then the first. Add 2 coefficients .
Further, one aspect of the control method of the incentive calculation system of the present invention is the control method of the incentive calculation system described above, wherein the incentive calculation system further includes an electricity charge calculation unit and a billing amount calculation unit. The electricity rate calculation unit is determined in advance based on the first measurement value, which is the measurement value of the electricity meter for purchasing electricity at the consumer facility, and the second measurement value, which is the measurement value of the electricity meter for selling electricity. According to the calculation method, the electricity purchase charge of the electricity purchased by the consumer of the consumer facility and the electricity sale charge of the sold electricity are calculated, and the billing amount calculation unit calculates the electricity purchase charge by the electricity charge calculation unit. The billing cost is calculated based on the charge, the electricity selling charge, and the incentive calculated by the calculation unit.

The present invention provides to consumers, power generation companies, power transmission and distribution companies, retail electricity companies, energy resource aggregators, energy management companies, etc. who have installed power storage equipment, power generation business and power transmission and distribution business by installing power storage equipment. It is related to an incentive calculation system that calculates incentives according to the capacity [kWh] of the storage battery as a consideration for returning the benefits of the people and retail electric power companies. According to this, consumers, etc. are incentives (economical). Benefits) can be enjoyed. For example, when a power generation company, a power transmission and distribution company, a retail electric power company, etc. control a consumer's power storage equipment for their own business operation, the consumer is informed of the consideration for using the power storage equipment. Can include. It makes sense to calculate the discount amount according to the capacity of the storage battery, because the larger the capacity of the storage equipment, the greater the load leveling effect and the supply and demand adjustment effect obtained by controlling the storage equipment. ing.
Furthermore, since the present invention produces merits for both consumers and businesses, it is possible to realize a highly convincing and sustainable power supply and demand mechanism utilizing a storage battery.
Thereby, according to the present invention, it is possible to provide a control method of an incentive calculation system and an incentive calculation system that can realize a highly convincing and sustainable mechanism of power supply and demand utilizing a storage battery.

It is a figure which shows the structural example of the consumer facility 10 in 1st Embodiment. It is a figure which shows the configuration example of the incentive calculation system 20 in 1st Embodiment. It is a figure which shows an example of the discount amount table. It is a figure which shows the configuration example of the consumer facility 10 in the 2nd Embodiment. It is a figure which shows the configuration example of the incentive calculation system 20a in 2nd Embodiment. It is a figure which shows the configuration example of the incentive calculation system 20 in 1st Embodiment. It is a flowchart which shows the operation example of the incentive calculation system 20 shown in FIG. It is a figure which shows the other configuration example of the incentive calculation system 20 in 1st Embodiment. It is a flowchart which shows the operation example of the incentive calculation system 20 shown in FIG. It is a figure which shows the configuration example of the incentive calculation system 20a and the power storage equipment 11a in the 2nd Embodiment. It is a flowchart which shows the operation example of the incentive calculation system 20a and the power storage equipment 11a shown in FIG. It is a figure which shows the other configuration example of the incentive calculation system 20a and the power storage equipment 11a in the 2nd Embodiment. It is a flowchart which shows the operation example of the incentive calculation system 20a and the power storage equipment 11a shown in FIG. It is a figure which shows the configuration example of the incentive calculation system 20b and the power storage equipment 11b in the 3rd Embodiment.

<First Embodiment>
A retail electricity company procures electricity from a power generation company and sells it to multiple consumers. Since the power consumption of a plurality of consumers as a whole is high during the day and low at night, the amount of power corresponding to the power consumption is procured from the power generation company for each time zone of a predetermined time unit, for example, a 30-minute unit. However, since it is more efficient for retail electricity companies to operate a generator with a constant amount of power generation throughout the day, retail electricity companies can use electricity at a low price when there is little difference in the amount of electricity procured between day and night. Can be procured. Therefore, retail electric power companies achieve load leveling by having consumers who have installed power storage equipment store commercial power at night and use the power stored during the day. There is a need to want. Since the larger the capacity of the power storage equipment can contribute to the load leveling, the retail electric power company discounts the consideration according to the capacity of the power storage equipment from the electricity rate.
In the first embodiment, the economic merit (incentive) of discounting the consideration according to the capacity of the electricity storage facility from the electricity rate to the consumer who has the electricity storage facility installed by the retail electric power company will be explained. To do. However, as incentives, in addition to discounts on electricity charges, services for the amount of electricity used from the next month onward, replacement when the storage battery deteriorates, points awarded, and returns to other services can be considered. In the future, electricity consumers will install electricity storage equipment at their own expense, and power generation companies, power transmission and distribution companies, retail electricity companies, energy resource aggregators, energy management companies, etc. will pay all or one of the costs. It is also possible that the department will bear the burden and install it on the premises of the electricity consumer. Therefore, in the first and second embodiments, the incentive for the retail electric power company to discount the consideration according to the capacity of the electricity storage facility from the electricity rate to the customer who has installed the electricity storage facility will be described. In the third and fourth embodiments, incentives other than the discount of electricity charges for the installer of the power storage equipment will be described.

As a consumer for explaining the first embodiment, a consumer facility of a general house is assumed. FIG. 1 is a diagram showing a configuration example of the consumer facility 10 according to the first embodiment.
The consumer facility 10 includes a power storage facility 11, a photovoltaic power generation facility 12, a distribution board 13, a load 14, a power meter Mp for purchasing power, and a power meter Mq for selling power.
The power storage facility 11 stores the electric power input for charging, and discharges and outputs the stored electric power. The configuration of the power storage facility 11 is not limited, and may be a storage battery, a lithium ion capacitor, a flywheel, or the like.
The photovoltaic power generation facility 12 is one of the power generation devices that utilize sunlight, which is a renewable energy, and generates electricity by converting the light energy into electric power by the photovoltaic effect. The photovoltaic power generation facility 12 is installed in a place where sunlight is not easily shielded by other buildings, such as the roof of a consumer facility 10. As a result, the photovoltaic power generation facility 12 irradiates the surface on which the power generation element is arranged without shielding the sunlight, and efficiently converts the irradiated sunlight into electric power.

The distribution board 13 branches the electric power path and electrically connects the power storage equipment, the commercial system, the solar power generation equipment, the in-house load, and the like.
The distribution board 13 electrically connects the commercial system and the load 14 in the consumer facility 10 so as to branch the electric power path and supply the commercial electric power supplied from the outside to the load 14.
Further, the distribution board 13 divides the electric power path in the consumer facility 10 and supplies electricity to the photovoltaic power generation facility 12 and the load 14 so as to supply the electric power generated by the photovoltaic power generation facility 12 to the load 14. Connect to.
Further, the distribution board 13 is connected to the commercial system so as to branch the electric power path in the consumer facility 10 and charge the electric power storage facility 11 with the electric power supplied from one or both of the commercial electric power and the solar power generation facility 12. One or both of the solar power generation facility 12 and the power storage facility 11 are electrically connected.
Further, the distribution board 13 electrically supplies the power storage equipment 11 and the load 14 so as to branch the power path in the consumer facility 10 and supply the power output by the discharge from the power storage equipment 11 to the load 14. Connect to.
Further, the distribution board 13 branches the electric power path in the consumer facility 10 and transfers the electric power generated by the solar power generation facility 12 to the other consumer facility 10 via, for example, a commercial electric power system. The solar power generation facility 12 and the power storage facility 11 in the other consumer facility 10 are electrically connected so as to be supplied to the power storage facility 11.
Further, the distribution board 13 branches the electric power path in the consumer facility 10 and supplies the electric power output by the discharge of the electric power storage facility 11 to the load 14 in the other consumer facility 10. And the load 14 in the other consumer facility 10 are electrically connected.

The load 14 is configured to include one or more devices and equipment that consume electric power in order to operate itself in the consumer facility 10.
The power purchase power meter Mp measures the amount of purchased commercial power.
The power meter Mq for selling power measures the amount of surplus power generated as a surplus after supplementing the power consumption of the load 14 in the house among the power generated by the solar power generation facility 12 (photovoltaic power generation power). To do.

Next, the incentive calculation system 20 which is the incentive calculation system in the present embodiment will be described with reference to the drawings. In the description of the first and second embodiments, the incentive for the retail electric power company to discount the consideration according to the capacity of the power storage equipment to the customer who has installed the power storage equipment from the electricity rate will be described. ..
FIG. 2 is a diagram showing a configuration example of the incentive calculation system 20 according to the first embodiment.
The incentive calculation system 20 includes a calculation unit 21, a meter reading value receiving unit 22, and a memory 23.
Further, the calculation unit 21 includes an electricity charge calculation unit 211, a discount amount calculation unit 212, and a billing amount calculation unit 213.
The measured value (meter reading value P) of the power meter Mp for purchasing power at the consumer facility 10 and the measured value (meter reading value Q) of the power meter Mq for selling power are meter-read by the power transmission and distribution business operator and confirmed. The value is monthlyly transmitted to the retail electric power company's incentive calculation system 20 via the Internet line. The meter reading value receiving unit 22 receives the meter reading value P and the meter reading value Q and outputs them to the electricity charge calculation unit 211.
The retail electric power company receives meter reading data of a plurality of consumers to which it supplies electricity, and the electricity charge calculation unit 211 of the incentive calculation system 20 calculates the electricity charge according to a predetermined calculation method. The electricity charges calculated by the electricity charge calculation unit 211 are roughly classified into electricity purchase charges for electricity purchased by consumers and electricity sales charges for selling electricity.

Further, in the incentive calculation system 20, the "non-provided storage capacity" and the "storage capacity" of the power storage equipment 11 installed in each customer in advance are registered and stored in the memory 23 of the server. .. Here, it is assumed that the operator manually inputs to the incentive calculation system 20. At the time of contracting with the customer, the operator inputs contract information such as the contractor's name, contact information, non-provided storage capacity, and storage capacity into the memory 23. The memory 23 is composed of a first storage unit 231 in which the non-provided storage capacity is registered and a second storage unit 232 in which the storage capacity is registered.

Here, the "non-provided storage capacity" is the amount of electric energy secured for use by a storage battery installer such as an electricity consumer or in an emergency such as a power outage.
Some household power storage devices 11 can set the amount of power to be secured in case of an emergency, that is, a power outage. At all times, the electric power that is discharged and stored while leaving the set amount of electric power is used. In an emergency, the set amount of power is also used. As a result, the consumer can use at least the set "non-provided storage capacity" in the event of a power outage.
In addition, when the set value is changed by the consumer, the mechanism that can change the "non-provided storage capacity" is stored only in the presence of contacting the retail electricity company or entering the password by the retail electricity company. It is desirable that the equipment 11 is provided.

The "storage capacity" is the electric power that can be stored in the power storage facility 11, and includes the "non-provided storage capacity".
As described above, it is conceivable that the operator manually inputs the incentive calculation system 20 when storing the "storage capacity" in the memory 23, but the method is not limited to this method.
This is because the "storage capacity" may be the manufacturer's rated value (catalog value) according to the model of the power storage equipment 11, or may be set by subtracting it in consideration of charge / discharge efficiency. Further, in consideration of the case where the capacity is reduced due to aged deterioration in the future, it is conceivable to take the average of the capacities that are considered to be deteriorated for a certain period of time, for example, 10 years, and use it as the “storage capacity”.
In this way, since the "storage capacity" is determined by the product model, a table for linking the product model and the "storage capacity" is provided in the incentive calculation system 20, and the model number is entered by inputting the model number. It is conceivable to calculate the discount amount by replacing it with "storage capacity".

In addition, "providable storage capacity" means that power generation companies, power transmission and distribution companies, retail electricity companies, energy management companies, energy resource aggregators, etc. control the power storage facilities installed in electricity demand areas. It is the amount of electricity that can be used by.
Here, the "providable storage capacity" is the amount of power obtained by subtracting the "non-provided storage capacity" from the "storage capacity", and is the amount of power of the power storage equipment that actually contributes to load leveling. When the "non-provided storage capacity" is 0, the "storage capacity" is the same as the "providable storage capacity".
Further, the "providable storage capacity" and the "non-provided storage capacity" can be changed or set for each day, month, season, weekday / holiday, time zone, and the like. In addition, the "providable storage capacity that can be provided by the power storage facility" is provided to the power generation company, power transmission / distribution company, retail electricity company, energy management company, energy resource aggregator, etc. that control the power storage facility. It refers to the destination that provides electric power, and may be, for example, other consumers, power generation companies, power transmission / distribution companies, retail electricity companies, energy management companies, and the like.

The discount amount calculation unit 212 refers to a preset discount amount table and calculates a discount amount corresponding to the “providable storage capacity”. FIG. 3 is a diagram showing an example of a discount amount table.
The billing amount calculation unit 213 calculates the billing cost based on the power purchase charge and the power sale charge calculated by the electricity charge calculation unit 211 and the discount amount calculated by the discount amount calculation unit 212.

In the present embodiment, the storage capacity is 10 kWh, and the non-provided storage capacity is 4 kWh. Assuming that the non-provided storage capacity is 4 kWh, the power storage facility 11 always stores 4 kWh, and when discharging, the discharge is stopped leaving 4 kWh. Then, the available storage capacity that actually contributes to the load leveling is 6 kWh, which is obtained by subtracting the non-provided storage capacity of 4 kWh from the storage capacity of 10 kWh.
In the calculation unit 21 of the incentive calculation system 20, the electricity charge calculation unit 211 calculates the above-mentioned power purchase charge and power sale charge, and the discount amount calculation unit 212 calculates the discount amount as a consideration for the installation of the power storage equipment 11 of the consumer. Calculates.
As a calculation process executed by the discount amount calculation unit 212, first, the non-provided storage capacity of 4 kWh is subtracted from the stored capacity of 10 kWh to calculate the available storage capacity of 6 kWh. Next, the discount amount calculation unit 212 calculates the discount amount according to the preset discount amount table (FIG. 3). According to the discount amount table shown in FIG. 3, when the available storage capacity is 6 kWh, the discount amount is calculated as 1,000 [yen / month].
The billing amount calculation unit 213 deducts this discount amount from the above-mentioned power purchase fee, adds the cost that all consumers are obliged to bear, such as fuel adjustment cost, and bills the consumer. It is desirable to clearly indicate on the invoice so that the discount amount due to the installation of the power storage facility 11 can be understood.

<Second embodiment>
A retail electricity company procures electricity from a power generation company and sells it to multiple consumers. If the amount of electricity procured can be reduced, the amount of electricity procured can be reduced, and as a result, the electricity bill collected from consumers can be set at a low price. As a method for reducing the amount of power procured, for example, there is a technique for reducing inverter loss inside a power storage facility as shown in Japanese Patent Application Laid-Open No. 2014-30334, and a group of local consumers shown in Japanese Patent No. 5576218. Applications such as technology to increase the self-sufficiency rate of electricity by natural energy can be considered. All of these are intended to reduce the loss of the power storage equipment and improve the power self-sufficiency rate by controlling the power storage equipment installed in the consumer facility from the outside. Here is the need for retail electric power companies to externally control the power storage equipment installed by consumers in order to reduce the amount of electricity procured.
In addition to this, imbalance adjustment by retail electric power companies and power generation companies, and utilization of power storage equipment of consumers for the purpose of reducing the burden on the power transmission and distribution network by power transmission and distribution companies can be considered.
In this way, when a retail electric power company or the like controls a consumer's storage battery for its own purpose, it is desirable to pay the consumer's consideration. Since the larger the capacity of the power storage equipment is, the greater the proportion that can contribute to the purpose of the retail electric power company, etc., the retail electric power company pays the consideration according to the capacity of the power storage equipment in the form of discounting from the electricity rate.

As a consumer for explaining the examples, a general house with a solar power generation facility and a power storage facility is assumed. The power storage equipment of the consumer is provided with a function that can arbitrarily set the non-provided storage capacity, and can be set by the customer. In addition, since the storage capacity changes due to deterioration of the power storage equipment over time, it is provided with a function of periodically estimating the storage capacity. In the estimation method currently in practical use, there is a method in which all the electric power stored in the electricity storage facility is once discharged, charged until it is fully charged, and the electric energy storage capacity is estimated from the amount of electric power that can be charged at that time.
Strictly speaking, the storage capacity decreases due to deterioration over time. The manufacturer's compensation for power storage equipment is, for example, "maintaining a power storage capacity of 50% or more after 10 years". When using a power storage facility for energy management, how much capacity can be used is important information for making a control plan for the power storage facility. Research and development of a function to grasp the state of the storage battery in real time and estimate the storage battery capacity at the present time has been made, and by incorporating such a technology, the storage capacity can be updated at any time. The method that has been put into practical use by the method of estimating the storage battery capacity is to perform annual maintenance operation to discharge all the stored power of the power storage equipment, charge it until it is fully charged, and estimate it based on the charged power. Is.
The power storage facility is provided with a storage unit that stores the non-provided storage capacity set by the customer and the estimated storage capacity (estimated storage capacity) in the memory. In addition, it has a transmission unit that transmits the non-provided storage capacity and the storage capacity stored in the memory to the outside.

FIG. 4 is a diagram showing a configuration example of the consumer facility 10 in the second embodiment.
The consumer facility 10 includes a power storage facility 11a, a photovoltaic power generation facility 12, a distribution board 13, a load 14, a power meter Mp for purchasing power, a power meter Mq for selling power, a HEMS (Home Energy Management System) 15, and a modem 16. Consists of including.
The HEMS 15 has a controller function of the power storage facility 11a and a function of linking with an external power management system 30 owned by a retail electric power company.
As the communication means between the power storage facility 11a and the HEMS 15, for example, the MAC layer / physical layer is performed by IEEE802.11b / g / n, IEEE802.15.4 or the like, and the communication protocol may be ECHONET Lite or the like. By communication between the power storage equipment 11a and the HEMS 15, data of the non-provided storage capacity and the storage capacity are transmitted from the power storage equipment 11a to the HEMS 15, and a control command to the power storage equipment 11a is transmitted from the HEMS 15 to the power storage equipment 11a. The control command includes a predetermined operation mode of the power storage facility 11a, for example, "constant power charge", "constant power discharge", "load follow-up discharge", "standby", etc., and receives any of the control commands. The power storage equipment 11a has been arranged to perform a predetermined operation.
The modem 16 is a transmission / reception unit for communicating between the power storage equipment 11a and the power management system 30 via a public internet line.
The power storage facility 11a subtracts the non-provided storage capacity from the first storage unit 101 that stores the non-provided storage capacity, the second storage unit 102 that stores the storage capacity (or the estimated storage capacity), or the storage capacity. It has a storage unit 100 (both storage units are not shown in FIG. 4) for storing the available storage capacity.

FIG. 5 is a diagram showing a configuration example of the incentive calculation system 20a according to the second embodiment.
The incentive calculation system 20a includes a calculation unit 21, a meter reading value receiving unit 22, and a receiving unit 24.
The difference from the incentive calculation system 20 in the first embodiment is that the memory 23 is not included and the receiving unit 24 is included. That is, in FIG. 5, the operator does not input to the incentive calculation system 20, but information such as the storage capacity that can be provided to the power storage facility 11a is stored, and the information is automatically stored in the incentive calculation system 20a by communication to the power management system. The form sent via 30 is shown.
Further, the calculation unit 21 includes an electricity charge calculation unit 211, a discount amount calculation unit 212, and a billing amount calculation unit 213, similarly to the incentive calculation system 20.

The power management system 30 includes an information collecting unit 31, a storage battery control determination unit 32, a transmission / reception unit 33, and a transmission unit 34.
Communication between the HEMS 15 and the power management system 30 in the consumer facility 10 is performed via the modem 16 and the public internet line. Data including the user ID, the non-provided storage capacity of the power storage facility 11a, and the storage capacity is transmitted from the HEMS 15, and the transmission / reception unit 33 in the power management system 30 receives the data.
In the power management system 30, the information collecting unit 31 calculates the data received from the HEMS 15 of the plurality of consumers by the transmission / reception unit 33, and the storage battery control determination unit 32 performs the operation of each power storage facility 11a owned by the plurality of consumers. The determination is made, and the transmission / reception unit 33 transmits the control command to the HEMS 15. Further, in the power management system 30, the transmission unit 34 transmits data of the non-provided storage capacity and the storage capacity to the incentive calculation system 20a, and the reception unit 24 of the incentive calculation system 20a receives the data.
That is, the incentive calculation system 20a indirectly receives the data of the non-provided storage capacity and the storage capacity from the power storage facility 11a via the HEMS 15 and the power management system 30. The incentive calculation system 20a directly receives data of the non-provided storage capacity and the storage capacity from the power storage facility 11a via the HEMS 15, the modem 16, and the Internet line without going through the power management system 30 by the receiving unit 24. It is also possible to receive.

Similar to the first embodiment, the incentive calculation system 20a calculates the electricity charge in the electricity charge calculation unit 211 based on the meter reading values P and Q received from the power transmission and distribution operator, and also includes the non-provided storage capacity and the storage capacity. The discount amount is calculated by the discount amount calculation unit 212 from the capacity.
The discount amount is calculated by, for example, the following formula (1).
D = 85.5 x R + 800 ... (1)
Here, D represents the discount amount [yen].
Further, R is calculated by the discount amount calculation unit 212 based on the formula of available storage capacity [kWh] = storage capacity-non-provided storage capacity. However, if R is less than 2.5 kWh, D = 0 yen. The upper limit of D is 1,600 yen. Further, the calculated value of D is calculated by rounding down after the decimal point.
For example, when the storage capacity is 6.08 kWh and the non-provided storage capacity is 3.5 kWh, the discount amount D is 1,020 yen according to the formula (1). Since the non-provided storage capacity can be set arbitrarily by the consumer at any time, it is conceivable to acquire the data once a day and calculate the discount amount by daily calculation.

Subsequently, an operation example of the incentive calculation system in the first embodiment and the second embodiment described above will be described.
FIG. 6 is a diagram showing a configuration example of the incentive calculation system 20 according to the first embodiment. Further, FIG. 7 is a flowchart showing an operation example of the incentive calculation system 20 shown in FIG.
The incentive calculation system 20 includes a calculation unit 21 and a memory 23 (first storage unit 231 and second storage unit 232).
The operator inputs the storage capacity of the user's contract information into the incentive calculation system 20 (step ST1).
The second storage unit 232 stores the input storage capacity (step ST2).
The operator inputs the non-provided storage capacity of the user's contract information into the incentive calculation system 20 (step ST3).
The first storage unit 231 stores the input non-provided storage capacity (step ST4).
The calculation unit 21 calculates the discount amount according to the storage capacity (step ST5).
The discount amount calculation unit 212 in the calculation unit 21 subtracts the non-provided storage capacity from the storage capacity to calculate the available storage capacity.
The calculation unit 21 calculates the discount amount (step ST6).
The discount amount calculation unit 212 in the calculation unit 21 refers to the preset discount amount table and calculates the discount amount corresponding to the available storage capacity.

FIG. 8 is a diagram showing another configuration example of the incentive calculation system 20 according to the first embodiment. Further, FIG. 9 is a flowchart showing an operation example of the incentive calculation system 20 shown in FIG.
The incentive calculation system 20 includes a calculation unit 21 and a memory 23.
The difference from FIG. 6 is that the non-provided storage capacity of the user's contract information is input to the memory 23 by the user. As described above, since the storage capacity is determined by the model of the product, the incentive calculation system 20 has a table for associating the model of the product with the storage capacity. The incentive calculation system 20 obtains the storage capacity by inputting the model number into the table and calculates the discount amount. The model number may be included in the user's contract information and may be input to the incentive calculation system 20 in advance. As a result, the model number can be replaced with the "storage capacity" by inputting the model number into the table.
The operator inputs the non-provided storage capacity of the user's contract information into the incentive calculation system 20 (step ST11).
The memory 23 stores the input non-provided storage capacity (step ST12).
The calculation unit 21 calculates the discount amount according to the storage capacity (step ST13).
The discount amount calculation unit 212 in the calculation unit 21 subtracts the non-provided storage capacity from the storage capacity to calculate the available storage capacity.
The calculation unit 21 calculates the discount amount (step ST14).
The discount amount calculation unit 212 in the calculation unit 21 refers to the preset discount amount table and calculates the discount amount corresponding to the available storage capacity.

FIG. 10 is a diagram showing a configuration example of the incentive calculation system 20a and the power storage facility 11a according to the second embodiment. Further, FIG. 11 is a flowchart showing an operation example of the incentive calculation system 20a and the power storage equipment 11a shown in FIG.
The power storage facility 11a includes a first storage unit 101 that stores the non-provided storage capacity, a second storage unit 102 that stores the storage capacity, and a transmission unit 160 (modem 16 and HEMS 15).
The incentive calculation system 20a includes a calculation unit 21 and a reception unit 24.
In this configuration, the incentive calculation system 20a directly receives data of non-provided storage capacity and storage capacity from the power storage facility 11a via the HEMS 15, the modem 16, and the Internet line without going through the power management system 30. It is a configuration that receives by 24. Of course, the incentive calculation system 20a is configured to indirectly receive the data of the non-provided storage capacity and the storage capacity by the receiving unit 24 via the power management system 30 between the incentive calculation system 20a and the power storage facility 11a. You may.
In the power storage facility 11a, the second storage unit 102 stores the storage capacity (step ST21).
In the power storage facility 11a, the first storage unit 101 stores the non-provided storage capacity (step ST22).
In the power storage facility 11a, the transmission unit 160 transmits the storage capacity and the non-provided storage capacity to the incentive calculation system 20a (step ST23).
In the incentive calculation system 20a, the receiving unit 24 receives the storage capacity and the non-provided storage capacity from the power storage facility 11a (step ST24).
In the incentive calculation system 20a, the calculation unit 21 calculates the discount amount according to the storage capacity and the non-provided storage capacity (step ST25).
The discount amount calculation unit 212 in the calculation unit 21 subtracts the non-provided storage capacity from the storage capacity to calculate the available storage capacity.
In the incentive calculation system 20a, the calculation unit 21 calculates the discount amount (step ST26).
The discount amount calculation unit 212 in the calculation unit 21 calculates the discount amount based on the equation (1).
The storage capacity is stored in the second storage unit 102 of the power storage facility 11a, but since the storage capacity is determined by the model of the power storage facility 11a, it is input to the incentive calculation system 20a in advance and stored in the power storage facility. In communication with 11a, there may be a case where only the non-provided storage capacity needs to be received.

FIG. 12 is a diagram showing another configuration example of the incentive calculation system 20a and the power storage equipment 11a according to the second embodiment. Further, FIG. 13 is a flowchart showing an operation example of the incentive calculation system 20a and the power storage equipment 11a shown in FIG.
The power storage facility 11a includes a storage unit 100 and a transmission unit 160 (modem 16 and HEMS 15) for storing the available storage capacity obtained by subtracting the non-provided storage capacity from the storage capacity.
The incentive calculation system 20a includes a calculation unit 21 and a reception unit 24.
In this configuration, the incentive calculation system 20a receives the data of the storage capacity that can be provided directly or indirectly from the power storage facility 11a by the receiving unit 24.
In the power storage facility 11a, the second storage unit stores the stored storage capacity stored at the time of filing (step ST31).
In the power storage facility 11a, the first storage unit stores the stored non-provided storage capacity according to the customer setting (step ST32).
In the power storage facility 11a, the HEMS 15 subtracts the non-provided storage capacity from the storage capacity to calculate the available storage capacity (step ST33).
In the power storage facility 11a, the storage unit 100 stores the power storage capacity that can be provided (step ST34).
In the power storage facility 11a, the transmission unit 160 transmits the available storage capacity to the incentive calculation system 20a (step ST35).
In the incentive calculation system 20a, the receiving unit 24 receives the available storage capacity from the power storage facility 11a (step ST36).
In the incentive calculation system 20a, the calculation unit 21 calculates the discount amount according to the available storage capacity (step ST37).
In the incentive calculation system 20a, the calculation unit 21 calculates the discount amount (step ST38).
The discount amount calculation unit 212 in the calculation unit 21 calculates the discount amount based on the equation (1).

<Third embodiment>
In the third embodiment, as an example of the incentive, the incentive to provide the service according to the predetermined calculation formula from the electricity consumption of the next month will be described.
FIG. 14 is a diagram showing a configuration example of the incentive calculation system 20b and the power storage facility 11b according to the third embodiment.
As shown in FIG. 14, the power storage facility 11b is installed in a detached house (customer facility 10) with solar power generation. Here, the cost bearer and the owner of the power storage facility 11b are retail electricity companies that have signed an electricity supply and demand contract with the residents living in the house. That is, the retail electric power company installs the power storage equipment 11b in a plurality of houses at its own cost. A storage battery usage fee is collected from residents on a regular basis. It may take the form of a power storage equipment lease. Further, it is the energy resource aggregator that controls the power storage facility 11b.
Further, the HEMS 15b is installed in the consumer facility 10 in which the power storage facility 11b is installed, and the storage capacity of the power storage facility 11b installed in the memory (storage unit 100b) of the HEMS 15b and the storage capacity arbitrarily set by the resident are not provided. The storage capacity is stored.

The HEMS 15b transmits power information and the like to the management server 30b that manages the information of the HEMS 15b via the Internet. The management server 30b sequentially accumulates power information from the HEMS 15b, and collects hourly data such as the amount of electricity used daily, the amount of solar power generation, the amount of charge / discharge of the storage battery, and the remaining amount of electricity stored in the consumer facility 10. Provide to residents. Residents can check this on their personal computers or smartphones via the Internet. Further, the management server 30b transmits the electric power information, the storage capacity, and the non-provided storage capacity to the control server 40 owned by the energy resource aggregator together with the equipment ID assigned in advance to the storage equipment 11b.

The control server 40 transmits control information of the power storage equipment 11b to the management server 30b. The control information includes, for example, (target power storage equipment ID, operation mode, electric power), (12345, discharge, 3 kW), (23456, discharge, 2 kW), (34567, standby, 0 kW), and the like. The control information of 11b is transmitted.
Upon receiving this, the management server 30b transmits the target control information to the HEMS 15b of the consumer facility 10 in which each power storage facility 11b is installed. The HEMS 15b receives this control information and controls the storage battery of the power storage facility 11b as instructed by the control server 40.

The energy resource aggregator receives a request from a retail electric power company to increase or decrease the amount of demand for a house (customer facility 10) in which a power storage facility 11b is installed, together with its size [kW]. Alternatively, it also receives a request for an increase or decrease in power generation.
The energy resource aggregator controls the power storage equipment 11b within a controllable range based on the request, and responds to this request by charging or discharging.
The retail electric power company is responsible for operating the supply and demand management, which is its business, according to the supply and demand plan submitted in advance in predetermined time units, for example, 30 minutes units, and the actual value deviates from the planned value (imbalance). A charge (imbalance charge) to be paid to the power transmission and distribution business operator is incurred accordingly. In this way, the energy resource aggregator controls the power storage facility 11b installed in the consumer facility 10 which is the demand area. The balance fee can be reduced.

The retail electric power company owns the incentive calculation system 20b, and acquires the storage capacity and the non-provided storage capacity from the control server 40 by the receiving unit 24b together with the equipment ID given in advance to the power storage equipment 11b. The calculation unit 21b of the incentive calculation system 20b calculates the available storage capacity by the formula of available storage capacity = storage capacity-non-provided storage capacity. According to the available storage capacity calculated by the incentive calculation system 20b, the retail electric power company gives an incentive to provide services according to a predetermined calculation formula from the amount of electricity used in the next month.

For example, if it is agreed in advance that the incentive amount [kWh] = the storage capacity that can be provided x 10 and the storage capacity that can be provided = the storage capacity 10kWh-the storage capacity that is not provided 4kWh = 6kWh, then 6 from the amount of electricity used in the next month. [KWh] x 10 = 60 [kWh] is provided as an incentive.
In the present embodiment, the owner of the power storage facility 11b is a retail electric power company, but this may be an energy resource aggregator or a resident, and in either case, it is within the scope of the present invention. To do.

<Fourth Embodiment>
In the fourth embodiment, the case where the incentive is given not as a discount on the electricity charge but as a replacement cost when the storage battery deteriorates will be described in the second embodiment.
As a customer for explaining the embodiment, a general house with a solar power generation facility and a power storage facility 11a is assumed. The power storage equipment 11a of the consumer is provided with a function that can arbitrarily set the non-provided storage capacity, and can be set by the customer. Further, since the storage capacity changes due to the deterioration of the power storage facility 11a with time, a storage capacity estimation unit for periodically estimating the storage capacity is provided.
The configuration of the storage battery system (storage equipment 11a) includes a plurality of storage battery modules, a power conditioner, a battery management unit that monitors and controls the state of the storage battery, and a case. The storage battery module is further composed of a plurality of storage battery cells.

In a certain power storage facility 11a, when eight cells of a lithium ion battery having a capacity of 30 Ah are electrically connected in series to form one module, and seven modules are electrically connected in series, a total of 56 cells are connected. It will be a 6kWh storage battery system that uses cells.
When the power storage facility 11a has been used for 15 years, the capacity of the storage battery system has reached 3 kWh due to deterioration over time, so the storage battery cell is replaced. The provision obtained from the history of the estimated storage capacity for the past 15 years (estimated storage capacity estimated by the storage capacity estimation unit by the function of estimating the storage capacity at the present time) and the set non-provided storage capacity. The average value of the possible storage capacity is calculated, and the number of services of the storage battery cell to be replaced is calculated by a predetermined formula. These calculations are performed by the incentive calculation system 20a.

For example, the incentive calculation system 20a calculates the number of services of the storage battery cell by the following equation.
Number of cells to be serviced [pieces] = average value of storage capacity that can be provided [kWh] x number of days of storage battery use x multiplication factor [pieces / kWh]
Here, the fraction of the calculation result is truncated. In addition, the multiplication factor differs depending on the purchase cost of the cell and the like. In addition, the number of days of use of the storage battery shall be from the day when the storage power is started to the day before the cell replacement day.
As an example of calculation, if the average value of the storage capacity that can be provided is 4.2 [kWh], the number of days the power storage equipment is used is 5405 days, and the multiplication factor is 0.00036, the number of cells to be serviced is 8 from the above formula. ..

As described above, the incentive calculation system 20 (incentive calculation system) of the present invention is an incentive calculation system that calculates an incentive for the installer of the power storage facility 11, and includes the non-provided storage capacity secured in the power storage facility 11. It has a calculation unit 21 that calculates an incentive according to the storage capacity including the non-provided storage capacity.
Further, the incentive calculation system 20 (incentive calculation system) of the present invention is an incentive calculation system for calculating an incentive for the installer of the power storage equipment 11, and is an incentive according to the available storage capacity that can be provided from the power storage equipment 11. It has a calculation unit 21 for calculating.

Further, the incentive calculation systems 20a and 20b (incentive calculation system) of the present invention are provided with a non-provided storage capacity and a transmission unit (transmission unit 160, HEMS15b) for transmitting the stored capacity including the non-provided storage capacity to the outside. The non-provided storage capacity transmitted by the transmitting unit and the receiving units (reception units 24, 24b) that directly or indirectly receive the stored capacity, the non-provided storage capacity received by the receiving unit, and the above. It has a calculation unit (calculation units 21, 21b) that calculates an incentive according to the storage capacity.
Further, the incentive calculation systems 20a and 20b (incentive calculation system) of the present invention are provided with transmission units (transmission unit 160, HEMS15b) for transmitting the provideable storage capacity to the outside, and the provideable storage capacity transmitted by the transmission unit. A receiving unit (reception units 24, 24b) that directly or indirectly receives the capacity, and a calculation unit (calculation unit 21, 21b) that calculates an incentive according to the available storage capacity received by the receiving unit. Has.

According to the incentive calculation systems 20, 20a, 20b (incentive calculation system) of the present invention, electricity is supplied according to the capacity [kWh] of the storage battery (the storage capacity that can be provided by the power storage facilities 11 and 11a and the power storage capacity that can be provided by HEMS15b). Incentives such as discounted charges (billing) can be calculated. That is, according to the incentive calculation systems 20, 20a, 20b (incentive calculation system) of the present invention, the merits of both the consumer and the business operator are produced, so that the power supply and demand utilizing the storage battery is highly convincing and sustainable. The mechanism can be realized.
Thereby, according to the present invention, it is possible to provide a control method of an incentive calculation system and an incentive calculation system that can realize a highly convincing and sustainable mechanism of power supply and demand utilizing a storage battery.

Further, a program for realizing the functions of the incentive calculation systems 20, 20a, and 20b is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed for charging. May be done. The term "computer system" as used herein includes hardware such as an OS and peripheral devices.
In addition, the "computer system" includes a homepage providing environment (or display environment) if a WWW system is used.
Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Furthermore, a "computer-readable recording medium" is a volatile memory (RAM) inside a computer system that serves as a server or client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, it shall include those that hold the program for a certain period of time. Further, the above-mentioned program may be a program for realizing a part of the above-mentioned functions, and may be a program for realizing the above-mentioned functions in combination with a program already recorded in the computer system.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and changes within the scope not deviating from the gist of the present invention are also included.

10 ... Consumer facilities, 11, 11a, 11b ... Power storage equipment, 12 ... Solar power generation equipment, 13 ... Distribution board, 14 ... Load, 15, 15b ... HEMS, 16 ... Modem, 20, 20a, 20b ... Incentive calculation System, 21,21b ... Calculation unit, 22 ... Meter reading value reception unit, 23 ... Memory, 24, 24b ... Reception unit, 30 ... Power management system, 30b ... Management server, 31 ... Information collection unit, 32 ... Storage battery control determination unit , 33 ... Transmission / reception unit, 34,160 ... Transmission unit, 40 ... Control server, 100, 100b ... Storage unit, 101,231 ... First storage unit, 102,232 ... Second storage unit, 211 ... Electricity charge calculation Department, 212 ... Discount amount calculation unit, 213 ... Billing amount calculation unit, Mp ... Electricity purchase power meter, Mq ... Power sale power meter

Claims (4)

It is an incentive calculation system that calculates incentives for installers of power storage equipment.
The non-provided storage capacity that can be changed by transmitting data including the non-provided storage capacity from the equipment of the customer facility of the installer according to the intention of the installer, and the non-provided storage capacity secured in the power storage facility. The available storage capacity is calculated by subtracting the non-provided storage capacity from the storage capacity based on the storage capacity including the non-provided storage capacity, and the first coefficient is added to the available storage capacity. An arithmetic unit that calculates incentives by multiplying and adding a second coefficient ,
It has a receiving unit that receives a non-provided storage capacity set according to the intention of the installer at a predetermined period.
When the receiving unit receives the non-provided storage capacity, the calculation unit calculates the available storage capacity by subtracting the received non-provided storage capacity from the stored capacity, and sets the first coefficient to the available storage capacity. Multiply and add the second coefficient
Incentive calculation system. Based on the first metric value, which is the metric value of the power meter for power purchase at the consumer facility, and the second metric value, which is the metric value of the wattmeter for selling electricity, according to a predetermined calculation method. Electricity charge calculation unit that calculates the electricity purchase charge of electricity purchased by the consumer of the customer facility and the electricity sale charge of the sold electricity,
A billing amount calculation unit that calculates a billing cost based on a power purchase charge and a power sale charge calculated by the electricity charge calculation unit and an incentive calculated by the calculation unit.
The incentive calculation system according to claim 1. It is a control method of an incentive calculation system having a calculation unit and a reception unit for calculating an incentive for an installer of a power storage facility.
The calculation unit
The non-provided storage capacity that can be changed by transmitting data including the non-provided storage capacity from the equipment of the consumer facility of the installer according to the intention of the installer, and the non-provided storage capacity secured in the power storage facility. The available storage capacity is calculated by subtracting the non-provided storage capacity from the storage capacity based on the storage capacity including the non-provided storage capacity, and the first coefficient is added to the available storage capacity. Calculate the incentive by multiplying and adding the second coefficient ,
The receiver
Receives the non-provided storage capacity set according to the intention from the installer every specified period,
The calculation unit
When the receiving unit receives the non-provided storage capacity, the available non-provided storage capacity is calculated by subtracting the received non-provided storage capacity from the stored capacity, and the available storage capacity is multiplied by the first coefficient and then the first. A control method for an incentive calculation system that adds two coefficients . The incentive calculation system further includes an electricity charge calculation unit and a billing amount calculation unit.
The electricity rate calculation unit
Based on the first metric value, which is the metric value of the power meter for power purchase at the consumer facility, and the second metric value, which is the metric value of the wattmeter for power sale, according to a predetermined calculation method. Calculate the electricity purchase fee of the electricity purchased by the consumer of the consumer facility and the electricity sale fee of the electricity sold.
The billing amount calculation unit
The billing cost is calculated based on the power purchase charge and the power sale charge calculated by the electricity charge calculation unit and the incentive calculated by the calculation unit.
The control method of the incentive calculation system according to claim 3.

Images