JP2023155652A - Energy management device, energy management system, energy management method, and energy management program - Google Patents

Abstract

To provide an energy management device, an energy management system, an energy management method, and an energy management program for performing economical operation control of a to-be-controlled facility over an operational period.SOLUTION: In an energy management system 1, a data acquisition unit 40 of an energy management device 4 acquires data including information on such as energy supply and demand from a plurality of to-be-controlled facilities 3 including a storage facility and a consuming facility. An operation planning unit 43 creates an operation plan for the to-be-controlled facilities 3 on the basis of the acquired data. A procurement cost calculation unit 44 calculates a procurement cost of energy from the outside with the operation plan. An operating cost estimation unit 45 estimates an operating cost for the to-be-controlled facilities 3 during an operation period with the operation plan. A facility control unit 49 controls the to-be-controlled facilities 3 on the basis of the operation plan. The operation planning unit 43 creates the operation plan by modifying the operation plan on the basis of the operating cost after the operation plan is temporarily determined on the basis of the procurement cost.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to an energy management device, an energy management system, an energy management method, and an energy management program.

Patent Document 1 discloses an example of a control device that manages a storage battery connected in parallel with an external power supply source. In the control device, a power storage capacity secured during a power outage that should be secured in the storage battery in case the power supply from the power supply source is stopped is input. In the control device, a charging time period for charging the storage battery with power from the power supply source is input. The control device causes the storage battery to be charged during the input charging time period. If the newly input power storage capacity to be secured during a power outage after the change is larger than the power storage capacity of the storage battery, the control device will use the changed power storage capacity regardless of whether it is the charging time zone input by the charging time zone input section. Charges the storage battery to the guaranteed storage capacity in the event of a power outage.

Japanese Patent Application Publication No. 2013-176187

Storage batteries can deteriorate due to charging and discharging. Deterioration of a storage battery affects its lifespan. However, in the control device of Patent Document 1, the influence of the life span of equipment to be controlled, such as a storage battery, is not considered as an operating cost over a long operating period. For this reason, there is a possibility that uneconomical operation control will be performed on the equipment to be controlled over the operation period.

The present disclosure relates to solving such problems. The present disclosure provides an energy management device, an energy management system, an energy management method, and an energy management program that economically control the operation of equipment to be controlled over an operation period.

The energy management device according to the present disclosure collects information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of energy stored from a plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy. a data acquisition unit that acquires data including the data, an operation planning unit that creates an operation plan for the plurality of controlled equipment based on the data acquired by the data acquisition unit, and procurement of energy from outside when following the operation plan. a procurement cost calculation unit that calculates a cost; an operation cost estimation unit that estimates an operation cost during a preset operation period when the operation plan is followed for at least one of the plurality of controlled equipment; an equipment control unit that controls the plurality of controlled equipment based on a plan, the operation planning unit tentatively determining the operation plan based on the procurement cost, and then modifying the operation plan based on the operation cost. Create by doing.

The energy management system according to the present disclosure includes a plurality of control target facilities including storage equipment that stores energy and consumption equipment that consumes energy, an integrated management device that collects information on energy procurement sources, and a plurality of control target equipment that collects information on energy procurement sources. a data acquisition unit that acquires data including at least one of information on energy demand, supplyable energy, and storage capacity from equipment; an operation planning unit that creates an operation plan; a procurement cost calculation unit that calculates the cost of procuring energy from the outside when following the operation plan based on information collected by the integrated management device; and the plurality of controlled equipment. an operation cost estimation unit that estimates an operation cost during a preset operation period when following the operation plan; and an equipment control unit that controls the plurality of controlled equipment based on the operation plan. and, the operation planning unit creates the operation plan by tentatively determining the operation plan based on the procurement cost and then modifying it based on the operation cost.

The energy management method according to the present disclosure collects information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of energy stored from a plurality of equipment to be controlled including storage equipment that stores energy and consumption equipment that consumes energy. a data acquisition step of acquiring data including data, an operation planning step of creating an operation plan for the plurality of controlled equipment based on the data acquired in the data acquisition step, and procurement of energy from outside when following the operation plan. a procurement cost calculation step of calculating a cost; an operation cost estimation step of estimating an operation cost during a preset operation period when the operation plan is followed for at least one of the plurality of controlled equipment; an equipment control step of controlling the plurality of equipment to be controlled based on a plan, and the operation planning step includes a provisional determination step of provisionally determining the operation plan based on the procurement cost; and a modification step of modifying the tentatively determined operation plan based on the operation cost.

The energy management program according to the present disclosure allows a computer to determine at least one of the amount of energy demanded, the amount that can be supplied, and the amount of energy stored from a plurality of equipment to be controlled including storage equipment that stores energy and consumption equipment that consumes energy. a data acquisition step of acquiring data including information on the data; an operation planning step of creating an operation plan for the plurality of controlled equipment based on the data acquired in the data acquisition step; a procurement cost calculation step of calculating an energy procurement cost; and an operation cost estimation step of estimating the operation cost during a preset operation period when the operation plan is followed for at least one of the plurality of control target facilities. , an equipment control step of controlling the plurality of control target equipment based on the operation plan, and the operation plan step tentatively determines the operation plan based on the procurement cost. The method includes a provisional determination step, and a modification step of modifying the operation plan tentatively determined in the provisional determination step based on the operation cost.

According to the energy management device, energy management system, energy management method, or energy management program according to the present disclosure, economical operation control can be performed over the operation period for equipment to be controlled.

FIG. 1 is a configuration diagram of an energy management system according to an embodiment. FIG. 3 is a diagram showing an example of an operation plan in the energy management system according to the first embodiment. 3 is a diagram showing an example of energy supply and demand based on the operation plan shown in FIG. 2. FIG. 4 is a diagram showing an example of procurement costs based on the supply and demand of energy shown in FIG. 3. FIG. 5 is a flowchart illustrating an example of the operation of the energy management device according to the first embodiment. 1 is a hardware configuration diagram of main parts of an energy management system according to a first embodiment; FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Modes for implementing the subject matter of the present disclosure will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are given the same reference numerals, and overlapping explanations are simplified or omitted as appropriate. Note that the subject of the present disclosure is not limited to the following embodiments, and modifications of any constituent elements of the embodiments or modifications of any constituent elements of the embodiments may be made without departing from the spirit of the present disclosure. Can be omitted.

Embodiment 1.
FIG. 1 is a configuration diagram of an energy management system 1 according to an embodiment.

The energy management system 1 is a system that manages energy consumed or produced in a facility, office, factory, region, or the like to which the energy management system 1 is applied. The energy management system 1 procures energy from an external supplier. The external supplier is, for example, an electric power company that supplies commercial AC power as energy. The energy management system 1 does not limit the form of energy to be managed. In addition to electric power, the energy management system 1 may manage energy in the form of cold heat, fuel gas, hydrogen, or the like, for example. The energy management system 1 includes an integrated management device 2, a plurality of controlled equipment 3, and an energy management device 4.

The integrated management device 2 is composed of, for example, one or more server computers. Some or all of the functions of the integrated management device 2 may be implemented using storage or processing resources on a cloud service. The integrated management device 2 executes each function by, for example, reading a program recorded on a recording medium and operating according to the program. The recording medium that records the program may be built into the integrated management device 2, connected to the integrated management device 2, or communicated with the integrated management device 2, for example. It may also be connected to an external device.

The integrated management device 2 manages information related to the entire energy management system 1. The integrated management device 2 collects, for example, information on procurement unit prices from suppliers as information on energy suppliers. The procurement unit price is the price when procuring a unit amount of energy such as electric power. The information on the procurement unit price is, for example, information such as the unit price of electricity supplied by the electric power company. The procurement unit price is determined by the procurement menu. The procurement menu may be selected from a menu prepared and presented in advance by the supplier, or may be based on an individual contract with the supplier. The procurement menu may present a fixed procurement unit price, or may present a procurement unit price that varies depending on conditions such as energy consumption time, or may indicate a procurement unit price that changes over time. It may also be possible to present a procurement unit price linked to. The integrated management device 2 may perform a future prediction of the procurement unit price based on, for example, past history with respect to a dynamic procurement unit price such as a procurement unit price linked to a market price.

Each controlled equipment 3 is equipment placed under the management of the energy management system 1. The controlled equipment 3 may include, for example, equipment that produces or converts energy. The controlled equipment 3 includes, for example, solar equipment 3a that converts sunlight into energy such as electric power. The controlled equipment 3 includes, for example, a combined heat and power equipment that converts fuel and the like into energy such as electric power and heat, that is, a CGS equipment 3b (CGS: Co-Generation System). The controlled equipment 3 includes storage equipment that stores energy. The storage equipment includes, for example, a storage battery equipment 3c that stores energy as electric power. The storage facility may store energy in the form of cold or other forms. The controlled equipment 3 includes consumption equipment that consumes energy supplied from an external supply source. The consumption facilities include, for example, an air conditioning facility 3d, a hot water supply facility 3e, a lighting facility 3f, a ventilation facility 3g, and an elevator facility 3h. The air conditioning equipment 3d or the hot water supply equipment 3e may also serve as a storage equipment that stores energy as heat. The controlled equipment 3 may include a distribution board 3i that distributes power, for example. The controlled equipment 3 may include other equipment.

The plurality of controlled equipment 3 is managed by an administrator or the like. The administrator may be the owner of the controlled equipment 3, or may be a management company, a maintenance company, or the like. The administrator manages the controlled equipment 3 through the management terminal 5, for example. The management terminal 5 is, for example, a personal computer or a general-purpose information terminal such as a smartphone. The management terminal 5 is connected to devices of the energy management system 1 such as the integrated management device 2, some or all of the equipment 3 to be controlled, or the energy management device 4 through a communication network such as the Internet or a telephone network.

The energy management device 4 is composed of, for example, one or more server computers. Some or all of the functions of the energy management device 4 may be implemented using storage or processing resources on a cloud service. For example, the energy management device 4 reads a program recorded on a recording medium, and executes each function by operating according to the program. The recording medium that records the program may be built into the energy management device 4, connected to the energy management device 4, or communicated with the energy management device 4, for example. It may also be connected to an external device.

The energy management device 4 is equipped with a function such as a BEMS (Building Energy Management System). The energy management device 4 is a device that manages energy consumed or produced in a plurality of control target facilities 3 to be managed. In the energy management device 4, a supplier from which energy is procured and a procurement menu are set. The supplier and the procurement menu are set, for example, by the administrator of the controlled equipment 3 through the management terminal 5. The energy management device 4 is applied to, for example, a business office, a factory, or a facility provided in a region to which the energy management system 1 is applied. Here, the facility to which the energy management device 4 is applied is, for example, an indoor facility, an outdoor facility, or a complex of these facilities. A facility to which the energy management device 4 is applied includes, for example, one or more buildings. The facility to which the energy management device 4 is applied may be, for example, a part of a building. The controlled equipment 3 to be managed by the energy management device 4 is provided, for example, in a facility to which the energy management device 4 is applied. Note that, for example, when a business office, factory, or region to which the energy management system 1 is applied includes a plurality of facilities, the energy management system 1 may include a plurality of energy management devices 4 applied to each facility. . The energy management device 4 includes a data acquisition section 40 , a driving history storage section 41 , a weather information acquisition section 42 , an operation planning section 43 , a procurement cost calculation section 44 , an operation cost estimation section 45 , and a deterioration estimation section 46 , a failure estimation section 47 , a presentation section 48 , and an equipment control section 49 .

The data acquisition unit 40 is a part equipped with a function of acquiring data from each controlled equipment 3 managed by the energy management device 4. The data acquisition unit 40 acquires, for example, data including information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of energy stored. The data acquisition unit 40 may acquire data including the storable amount of energy. The data acquisition unit 40 may acquire data from which at least one of the demand amount, supplyable amount, and storage amount of energy can be derived.

The data acquisition unit 40 acquires, for example, data including information such as operation time, number of times of start and stop of operation, number of alarms, and enthalpy from the air conditioner 3d. The data acquisition unit 40 acquires, for example, data including information such as operating time, the number of times of operation start and stop, and the number of alarms from the ventilation equipment 3g. The data acquisition unit 40 acquires, for example, data including information such as operating time, the number of times of operation start and stop, and the number of alarms from the lighting equipment 3f. The data acquisition unit 40 acquires, for example, data including information such as operation time, number of times of operation start and stop, number of alarms, amount of hot water stored, and boiling time from the hot water supply equipment 3e. The data acquisition unit 40 acquires, for example, data including information such as the operating time, the number of times of operation start and stop, and the number of alarms from the elevator equipment 3h. The data acquisition unit 40 acquires, for example, data including information such as operating time, number of alarms, power generation amount, and power generation efficiency from the solar equipment 3a. The data acquisition unit 40 acquires, for example, data including information such as the amount of stored electricity, the operating time, and the number of operating cycles from the storage battery equipment 3c. The data acquisition unit 40 acquires data including information such as operating cost and number of alarms from the CGS equipment 3b, for example. The data acquisition unit 40 acquires data including information such as power consumption of each controlled equipment 3 from the distribution board 3i, for example.

The operation history storage unit 41 is a part that stores the operation history of each controlled equipment 3. The driving history storage unit 41 accumulates and stores, as a driving history, data acquired by the data acquisition unit 40 from each controlled equipment 3, for example.

The weather information acquisition unit 42 is a part equipped with a function of acquiring weather information about the location where the controlled equipment 3 is installed. The location where the controlled equipment 3 is provided is, for example, a region where a facility to which the energy management device 4 that manages the controlled equipment 3 is installed is installed. The weather information includes information on past observed weather history and/or future weather forecasts. Weather information includes information such as temperature and humidity, for example. The weather information acquisition unit 42 acquires weather information from, for example, an external weather information service.

The operation planning unit 43 is a part equipped with a function of creating an operation plan for the equipment 3 to be controlled. The operation planning section 43 creates an operation plan based on the data acquired by the data acquisition section 40. The operation plan defines the timing of starting or stopping the operation of each controlled equipment 3, the output during operation, the operation mode, etc. The output during operation corresponds to the amount of energy consumed in the consumption equipment, for example. The output during operation corresponds to the input/output amount of energy in the storage facility, such as the amount of charging and discharging of electric power, for example. The operation mode of the controlled equipment 3 may be, for example, an energy saving mode in which the controlled equipment 3 is operated with a higher priority on reducing energy consumption, or an energy saving mode in which the controlled equipment 3 is operated with a higher priority on improving performance such as user convenience. This includes a high performance mode in which the controlled equipment 3 is operated. The elevator equipment 3h may be operated in a high performance mode, for example, by shifting some of the elevators to a sleep mode to reduce power consumption. The lighting equipment 3f may be operated in an energy-saving mode, for example, in an operation mode that suppresses the upper limit of brightness when turned on by a user's operation. An operation plan is created for a planning period, for example. The planning period is a short period, such as one day. The operation plan defines, for example, the output or operation mode for each time period within the plan period.

The procurement cost calculation unit 44 is a part equipped with a function of calculating the procurement cost of energy from an external supply source. The procurement cost calculation unit 44 calculates the procurement cost when each controlled equipment 3 follows the operation plan created by the operation planning unit 43. The procurement cost calculation unit 44 refers to the information on the supplier collected by the integrated management device 2 in calculating the procurement cost. For example, the procurement cost calculation unit 44 obtains the procurement unit price corresponding to the procurement menu from the integrated management device 2 by presenting the procurement source and procurement menu currently adopted by the energy management device 4 to the integrated management device 2. do. Note that information on suppliers and procurement menus employed by the energy management device 4 may be managed in the integrated management device 2. For example, the procurement cost calculation unit 44 calculates the amount of energy to be procured that is necessary when following the operation plan, and calculates the procurement cost based on the calculated amount of procurement and the unit price of procurement.

The operation cost estimating unit 45 is a part equipped with a function of estimating the operation cost during the operation period for a part or all of the controlled equipment 3. The operation period is a preset long period. The operation period is set to be longer than the planned period of the operation plan, for example. The operation period is set, for example, as a period corresponding to the life span or amortization period of any of the controlled equipment 3. The operation cost includes, for example, a cost that changes depending on the accumulation of operation history such as deterioration of the equipment 3 to be controlled. The operation cost may include maintenance and inspection costs such as the cost of replacing parts that become necessary due to deterioration of the equipment 3 to be controlled, or the cost of repairing failures whose occurrence probability increases due to deterioration of the equipment 3 to be controlled. The operation cost estimation unit 45 estimates the operation cost when each controlled equipment 3 follows the operation plan created by the operation planning unit 43, for example, as follows.

The operation cost estimation unit 45 estimates, for example, the operation cost when the same operation as the operation according to the created operation plan is performed for each controlled equipment 3 over the operation period. For example, when the operation plan created for each controlled equipment 3 is characterized by an operation index such as operation frequency, the operation cost estimation unit 45 determines whether the operation characterized by the operation index will continue over the operation period. Estimate operational costs as The operation index includes, for example, the number of times the controlled equipment 3 starts or ends operation. The operational indicators may include, for example, the number of times energy is stored and released in the storage facility. The operation index is, for example, the number of charging/discharging cycles in the storage battery equipment 3c. Further, the operation cost estimating unit 45 may correct the estimated operation cost based on the operation history of each controlled equipment 3. The operation cost estimating unit 45 corrects the operation cost using, for example, the average value, variance, or other statistical amount obtained by statistically processing the performance values of the driving index based on the driving history.

Note that the life of the controlled equipment 3 may change depending on the operating history. At the end of the life of the controlled equipment 3, renewal costs such as disposal and new installation of the controlled equipment 3 occur. Even if there is no change in the size of the renewal cost itself, the operable period changes due to an increase or decrease in the service life, so the renewal cost per operable period changes. For this reason, the operating cost estimating unit 45 may calculate the installation cost or update cost of the controlled equipment 3 together with the estimated lifespan based on the operating history and the daily operating cost based on the operating history. For example, the operation cost estimating unit 45 evaluates the total evaluation of the effect of reducing operation costs through active operation, the shortening of life through active operation, and the total evaluation of the increase in operation cost due to life extension operation and the extension of life. The operating costs may be estimated by comparing the The operation cost estimating unit 45 may estimate a value obtained by dividing the update cost of the controlled equipment 3 by the lifespan, or may estimate the lifespan itself as one expression of the operation cost. Alternatively, since the timing of occurrence of renewal costs may vary depending on the lifespan, the operating cost estimating unit 45 estimates a value obtained by discounting the future value of renewal costs to the present value, including in the operating costs, based on the timing of occurrence of renewal costs. You may.

The deterioration estimating unit 46 is a part equipped with a function of estimating the deterioration of the controlled equipment 3 over the operation period. The deterioration of the controlled equipment 3 includes wear or consumption of the controlled equipment 3, functional decline of the controlled equipment 3, and the like. The deterioration of the controlled equipment 3 estimated by the deterioration estimating unit 46 is used, for example, for estimating the operational cost in the operational cost estimating unit 45. The deterioration of the controlled equipment 3 is used, for example, to estimate the operating cost based on the operating period of the controlled equipment 3, with the expected time when the required performance will no longer be obtained due to deterioration as the timing for updating the controlled equipment 3. . The deterioration estimation unit 46 estimates the deterioration of, for example, storage equipment as the equipment 3 to be controlled. Deterioration of storage equipment may include functional decline such as a decline in storage capacity.

Degradation of storage equipment occurs, for example, due to the storage and release of energy. At this time, the deterioration estimating unit 46 estimates the deterioration of the storage equipment based on operational indicators such as the number of times energy is stored and released. For example, the deterioration estimating unit 46 estimates the deterioration when each of the controlled equipment 3 follows the operation plan created by the operation planning unit 43, using an operation index or the like similarly to the operation cost estimating unit 45.

Furthermore, deterioration of storage equipment occurs due to changes in the operating environment, such as weather conditions, for example. At this time, the deterioration estimation unit 46 estimates the deterioration of the storage facility using the weather information acquired by the weather information acquisition unit 42. The deterioration estimating unit 46 estimates the atmospheric temperature of the operating environment of the storage facility, for example, based on weather information. The deterioration estimation unit 46 estimates the deterioration of storage equipment such as the storage battery equipment 3c based on the estimated atmospheric temperature.

The failure estimating unit 47 is a part that is equipped with a function of estimating the probability of failure occurring during the operation period for part or all of the equipment 3 to be controlled. The failure estimation unit 47 estimates, for example, the probability of occurrence of a failure when each of the controlled equipment 3 follows the operation plan created by the operation planning unit 43, using an operation index or the like similarly to the operation cost estimation unit 45. For example, the failure estimation unit 47 increases the probability of failure occurrence as the cumulative value of the number of times the controlled equipment 3 starts or ends operation, or the cumulative value of the number of times energy is stored and released in the storage equipment, etc. presume. The probability of occurrence of a failure in the controlled equipment 3 estimated by the failure estimating unit 47 is used, for example, to estimate the operational cost in the operational cost estimating unit 45. For example, the estimated damage amount, degree of influence, and repair cost due to the failure are compared and evaluated with the repair cost due to preventive maintenance, and the operation cost is revised to reflect the appropriate operation plan. Alternatively, the influence of a failure on operational costs may be calculated by an expected value obtained by multiplying the estimated probability of occurrence of a failure by the cost of repairing the failure. The influence of a failure on operating costs may be expressed, for example, by a probability distribution of possible operating costs, or may be calculated by a probabilistic simulation such as the Monte Carlo method.

The presentation unit 48 is a part equipped with a function of presenting information to the administrator of the equipment 3 to be controlled. The presentation unit 48 presents information to the administrator through the management terminal 5, for example, by outputting a notification signal to the management terminal 5. The presenting unit 48 is configured to display, for example, an operation plan created by the operation planning unit 43, a procurement cost calculated by the procurement cost calculation unit 44, an operation cost estimated by the operation cost estimation unit 45, a deterioration estimated by the deterioration estimation unit 46, or a failure. Information such as the probability of occurrence of a failure estimated by the estimating unit 47 is presented to the administrator.

The equipment control unit 49 is a part that is equipped with a function of controlling the operation of the equipment 3 to be controlled. The equipment control unit 49 controls the operation of each equipment 3 to be controlled, for example, by outputting a control signal to each equipment 3 to be controlled. The equipment control unit 49 controls the operation of each control target equipment 3 based on the operation plan created by the operation planning unit 43.

Next, an example of calculation of procurement costs in the energy management device 4 will be explained using FIGS. 2 to 4.
FIG. 2 is a diagram showing an example of an operation plan in the energy management system 1 according to the first embodiment.
FIG. 3 is a diagram showing an example of energy supply and demand based on the operation plan shown in FIG. 2.
FIG. 4 is a diagram showing an example of procurement costs based on the supply and demand of energy shown in FIG. 3.

In FIG. 2, an example of a driving plan is shown by a stacked bar graph. The horizontal axis in FIG. 2 represents the passage of time. The vertical axis in FIG. 2 represents energy production or consumption. The vertical axis in FIG. 2 is plotted so that the production amount is a negative value.

The operation plan is expressed by the energy consumption or production amount of each controlled equipment 3 for each time period in the planning period. Here, for things that include uncertainty such as the amount of energy produced by the solar equipment 3a, the operation plan may be expressed by a predicted value of the amount of energy produced. The predicted value is calculated by, for example, the driving planning unit 43 based on, for example, driving history. The operation plan is created based on, for example, weather information during the planning period or predictions of the flow of people at the facility. The driving plan may be created based on driving history or the like.

In FIG. 3, an example of energy supply and demand is shown by a line graph. The horizontal axis in FIG. 3 represents the passage of time. The vertical axis in FIG. 3 represents the amount of energy demanded or supplied. The vertical axis in FIG. 3 is plotted so that the supply amount is a negative value.

In FIG. 3, the total amount of energy demand and supply is shown. The total amount of energy supplied is the sum of the amount of energy procured from external sources and the amount of energy produced by the equipment 3 to be controlled. The energy production amount here may include the release amount of energy stored in the storage facility. The total energy demand is calculated, for example, based on the operation plan of the consumption equipment. The energy production amount is calculated, for example, based on the operation plan of the controlled equipment 3 that produces or releases energy. The energy procurement amount is calculated as, for example, the portion of the total energy demand that cannot be covered by the energy production amount. The total amount of energy supplied is calculated, for example, based on the amount of energy production and the amount of energy procurement.

In FIG. 4, an example of procurement costs is shown by a composite graph of a line graph and a bar graph. The horizontal axis in FIG. 4 represents the passage of time. The vertical axis on the left side of FIG. 4 represents the procurement amount. The vertical axis on the right side of FIG. 4 represents the procurement unit price.

The procurement unit price is based on information collected by the integrated management device 2, for example. The procurement cost estimating unit calculates the procurement cost for each time period based on the energy procurement amount and the procurement unit price for each time period. The procurement cost estimation unit calculates the procurement cost in the planning period by taking the sum of the procurement costs for each time period in the planning period.

The operation planning section 43 tentatively determines an operation plan based on the procurement cost calculated by the procurement cost calculation section 44. The operation planning unit 43 temporarily determines the operation plan by, for example, optimization processing using the operation plan as a design variable and procurement cost as an objective function. The driving planning unit 43 may temporarily determine the driving plan by processing such as machine learning, which uses the data acquired by the data acquisition unit 40 as input and outputs the driving plan. At this time, the machine learning model is trained to reduce procurement costs as much as possible, for example.

Next, an example of the operation of the energy management device 4 will be described using FIG. 5.
FIG. 5 is a flowchart showing an example of the operation of the energy management device 4 according to the first embodiment.

The process shown in FIG. 5 is started, for example, at every preset timing. The preset timing is, for example, regular timing at intervals corresponding to the planning period.

In step S501, the data acquisition unit 40 acquires data from each controlled equipment 3. The acquired data is accumulated and stored in the driving history storage section 41. After that, the process of the energy management device 4 proceeds to step S502.

In step S502, the operation planning unit 43 creates a candidate operation plan for the controlled equipment 3 based on the data acquired by the data acquisition unit 40 and the like. After that, the process of the energy management device 4 proceeds to step S503.

In step S503, the procurement cost calculation unit 44 calculates, based on the operation plan candidate created by the operation planning unit 43, the procurement cost in the planning period when following the operation plan candidate. After that, the process of the energy management device 4 proceeds to step S504.

In step S504, the driving planning unit 43 determines whether driving plan candidates can be provisionally determined. When determining that the driving plan candidate can be adopted from the viewpoint of procurement cost, the driving planning unit 43 determines that the driving plan candidate can be tentatively determined. For example, when the operation plan is tentatively determined by an optimization process for reducing procurement costs, the operation planning unit 43 determines that the operation plan can be tentatively determined if a condition for terminating the optimization process is satisfied. The termination condition for the optimization process is, for example, the convergence condition when the optimization process is based on convergence calculation, or the condition for the number of calculations when the optimization process is based on iterative calculation a preset number of times, etc. be. Alternatively, the operation planning unit 43 may determine that provisional determination is possible, for example, when the procurement cost is less than a preset threshold. When the operation planning unit 43 determines that the operation plan candidate can be tentatively determined, the process of the energy management device 4 proceeds to step S505. On the other hand, when the operation planning unit 43 determines that the operation plan candidate cannot be provisionally determined, the process of the energy management device 4 proceeds to step S502, and re-creates the operation plan candidate.

In step S505, the operation cost estimating unit 45 estimates the operation cost for some or all of the equipment 3 to be controlled. At this time, the operating cost estimating section 45 may estimate the operating cost using the deterioration estimated by the deterioration estimating section 46 or the failure occurrence probability estimated by the failure estimating section 47. After that, the process of the energy management device 4 proceeds to step S506.

In step S506, the operation planning unit 43 determines whether the estimated operation cost satisfies the operation standard. The operational standards are set in advance through, for example, the management terminal 5. The operational standard is, for example, a standard such as whether the estimated operational cost is lower than a preset tolerance value. The operational standard may be, for example, whether the estimated lifespan is longer than a preset tolerance value as an expression of operational cost. If the operating cost does not meet the operating criteria, the process of the energy management device 4 proceeds to step S507. On the other hand, when the operating cost satisfies the operating criteria, the operation planning unit 43 creates an operation plan by directly employing the tentatively determined operation plan candidates. After that, the process of the energy management device 4 proceeds to step S508.

In step S507, the operation planning unit 43 corrects the tentatively determined operation plan to reduce operational costs. At this time, the operation planning unit 43 adjusts the output or operation mode for each time period within the planning period, for example, so that the operation index that affects the operation cost changes. Note that the procurement cost calculation unit 44 may calculate the procurement cost and the operation cost estimation unit 45 may estimate the operation cost for the revised operation plan. At this time, the operation planning unit 43 may compare the reduction in operating costs due to the modification of the operation plan and the increase or decrease in procurement costs. As a result of the comparison, the operation planning unit 43 may re-revise the operation plan if cost benefits cannot be obtained due to an increase in procurement costs that exceeds the effect of reducing operating costs. The operation planning unit 43 may compare the reduction in the estimated value of the operating cost and the increase or decrease in the calculated value of the procurement cost by comparing the obtained values as they are, or by multiplying them by a weighting factor, etc. good. The weighting coefficient may be such that, for example, procurement costs that occur closer to each other and are more accurate are given more weight, or operation costs that have a greater impact are given more weight. Alternatively, the weighting factors may be set based on the operational period and the planning period. The operation planning unit 43 may compare the reduction in the estimated value of the operational cost divided by the operational period and the increase or decrease in the calculated value of the procurement cost divided by the planned period. After the operation plan is revised, the process of the energy management device 4 proceeds to step S508. Note that, after modifying the driving plan, the energy management device 4 may advance the process to step S502 and create a driving plan candidate again, for example. At this time, the operation planning unit 43 may impose constraints that constrain the operation index modified based on the operation cost in the provisional determination of the operation plan.

In step S508, the failure estimation unit 47 estimates the probability of failure occurrence for some or all of the controlled equipment 3. For example, when the probability of occurrence of a failure has already been estimated, such as when a driving plan candidate is directly adopted as the driving plan, the failure estimating unit 47 may omit estimating the probability of occurrence. The presentation unit 48 determines whether at least one of the failure occurrence probabilities estimated by the failure estimation unit 47 exceeds a preset threshold. The threshold value is set, for example, through the management terminal 5 or the like. If the determination result is YES, the process of the energy management device 4 proceeds to step S509. On the other hand, if the determination result is NO, the process of the energy management device 4 proceeds to step S511.

In step S509, the presentation unit 48 presents the failure occurrence probability estimated by the failure estimation unit 47 to the administrator via the management terminal 5 or the like. The presentation unit 48 may also present the operation plan, procurement cost, operation cost, etc. After that, the process of the energy management device 4 proceeds to step S510.

The manager who receives the information from the presentation unit 48 considers whether to change the control conditions for some or all of the equipment 3 to be controlled.

The control conditions may include, for example, a criterion for determining whether or not to make a tentative decision in step S504, or an operation criterion in step S506. The control conditions may include, for example, the supplier and procurement menu currently employed by the energy management device 4. For example, information collected by the integrated management device 2 is presented to the administrator through the management terminal 5 as to the suppliers and procurement menus that can be selected as control conditions. The information may be obtained directly from the integrated management device 2 by the management terminal 5, or may be obtained by the presentation unit 48 of the energy management device 4 from the integrated management device 2 and then transmitted to the management terminal 5. It may be something that Furthermore, the energy management device 4 may also create operation plans, calculate procurement costs, estimate operating costs, etc. for suppliers and procurement menus that are not currently adopted. At this time, the presentation unit 48 of the energy management device 4 may present the supplier and procurement menu that can be selected as control conditions to the administrator together with the operation plan, procurement cost, operation cost, and the like.

When the administrator determines to change the control conditions, the changed control conditions are transmitted to the energy management device 4 through the management terminal 5.

In step S510, the operation planning unit 43 determines whether the control conditions have been changed. If the determination result is Yes, the process of the energy management device 4 proceeds to step S502. On the other hand, if the determination result is No, the process of the energy management device 4 proceeds to step S511.

In step S511, the equipment control unit 49 generates a control signal based on the operation plan for each equipment 3 to be controlled. The equipment control unit 49 outputs the generated control signal to the corresponding equipment 3 to be controlled. After that, the processing of the energy management device 4 ends.

As described above, the energy management system 1 according to the first embodiment includes a plurality of controlled equipment 3, an integrated management device 2, and an energy management device 4. The plurality of controlled equipment 3 includes storage equipment that stores energy and consumption equipment that consumes energy. The integrated management device 2 collects information on energy suppliers. The energy management device 4 includes a data acquisition section 40, an operation planning section 43, a procurement cost calculation section 44, an operation cost estimation section 45, and an equipment control section 49. The data acquisition unit 40 acquires data including information on at least one of energy demand, supplyable energy, and storage energy from the plurality of controlled equipment 3 . The operation planning section 43 creates an operation plan for the plurality of control target facilities 3 based on the data acquired by the data acquisition section 40 . The procurement cost calculation unit 44 calculates the procurement cost of energy from outside when the operation plan is followed, based on information collected by the integrated management device 2 and the like. The operation cost estimation unit 45 estimates the operation cost for at least one of the controlled equipment 3 during a preset operation period when the operation plan is followed. The equipment control unit 49 controls the plurality of equipment 3 to be controlled based on the operation plan. The operation planning unit 43 creates an operation plan by tentatively determining the operation plan based on the procurement cost and then modifying it based on the operation cost.
Further, the energy management method according to the first embodiment includes a data acquisition step, an operation planning step, a procurement cost calculation step, an operation cost estimation step, and an equipment control step. The data acquisition step is a step of acquiring data including information on at least one of the demand amount, supplyable amount, and storage amount of energy from the plurality of controlled target facilities 3. The operation planning step is a step of creating an operation plan for the plurality of controlled equipment 3 based on the data acquired in the data acquisition step. The procurement cost calculation step is a step of calculating the procurement cost of external energy when following the operation plan. The operation cost estimating step is a step of estimating the operation cost for at least one of the controlled equipment 3 during the operation period when the operation plan is followed. The equipment control step is a step of controlling the plurality of equipment 3 to be controlled based on the operation plan. The operation planning step includes a tentative determination step and a modification step. The provisional determination step is a step in which the operation plan is provisionally determined based on the procurement cost. The modification step is a step of modifying the operation plan provisionally determined in the provisional determination step based on the operating cost.
Further, the energy management program according to the first embodiment includes a data acquisition step, an operation planning step, a procurement cost calculation step, an operation cost estimation step, and an equipment control step in a computer such as the energy management device 4. Let it run.

With such a configuration, the operation plan for the controlled equipment 3 is tentatively determined to reduce procurement costs that occur in the short term, and then modified based on the operating costs that will have a long-term effect. Therefore, uneconomical operation control such as excessive utilization of the controlled equipment 3 or excessive conservation of the controlled equipment 3 can be suppressed. As a result, economically advantageous operation control can be performed on the controlled equipment 3 over a long operating period corresponding to the life span or depreciation period. Furthermore, procurement costs and operational costs may differ in terms of accuracy and monetary scale. Since the operation plan is tentatively determined based on the more accurate procurement cost and then adjusted based on the operation cost, the stability and accuracy of calculations related to the creation of the operation plan are further improved.

The energy management device 4 also includes a deterioration estimation section 46. The deterioration estimation unit 46 estimates deterioration of the storage equipment due to storage and release of energy. The operation cost estimator 45 estimates the operation cost based on the deterioration estimated by the deterioration estimator 46.

Such a configuration allows for more accurate evaluations of economics over long periods of operation, since the deterioration of the storage equipment due to energy storage and release is taken into account in the operating costs.

The energy management device 4 also includes a weather information acquisition section 42 and a deterioration estimation section 46. The weather information acquisition unit 42 acquires weather information including at least either a weather history or a weather forecast for a location where a plurality of controlled equipment 3 is provided. The deterioration estimation unit 46 estimates the deterioration of storage equipment using weather information. The operation cost estimator 45 estimates the operation cost based on the deterioration estimated by the deterioration estimator 46.

With such a configuration, the deterioration of the controlled equipment 3 due to weather conditions such as changes in temperature or humidity is taken into account in the operational cost, so that the accuracy of economic evaluation over a long period of operation can be further improved. .

The energy management device 4 also includes a failure estimation section 47 and a presentation section 48. The failure estimating unit 47 estimates the probability of failure occurrence during the operation period when the operation plan is followed for at least one of the controlled equipment 3. The presenting unit 48 presents the probability of failure occurrence estimated by the failure estimating unit 47 to the administrator who manages the plurality of equipment 3 to be controlled.

With such a configuration, the failure risk during the operation period is presented to the administrator, so that the controlled equipment 3 can be operated in consideration of the possibility of failure. Note that the presentation unit 48 may present the information only when the probability of occurrence of a failure exceeds a threshold value, or may make the presentation regardless of whether the probability of occurrence of a failure is high or low.

Note that the deterioration estimating unit 46 may estimate the storable amount of energy of the storage facility based on the estimated deterioration of the storage facility. For example, the deterioration estimating unit 46 performs estimation assuming that the more the deterioration progresses, the smaller the storable amount becomes. The progress of deterioration and the storable amount may be related, for example, by a monotonically decreasing function, or may be related by a preset table. Further, the operation planning section 43 may create an operation plan based on the storable amount of energy of the storage facility estimated by the deterioration estimating section 46.

With such a configuration, a decrease in the storable amount due to deterioration of the storage equipment is taken into consideration in the operation plan, so that the accuracy of economic evaluation is further improved.

Further, the operation planning unit 43 may create an operation plan so that a predetermined storage amount of energy to be used in an emergency is ensured for all of the plurality of controlled target facilities 3. The stored amount corresponds to, for example, the energy required when activating BCP (Business Continuity Planning). The operation planning section 43 may create an operation plan for securing the storage amount based on the storable amount of energy of the storage facility after deterioration estimated by the deterioration estimating section 46. The operation planning unit 43 may impose securing the storage amount as a constraint condition when tentatively determining operation plan candidates, or may impose it as an operational standard, for example. Securing the storage amount may be set in advance through the management terminal 5 as a control condition.

With such a configuration, the energy required in an emergency such as when BCP is activated can be secured more economically and more reliably.

Further, the presentation unit 48 may present the information to the administrator via the management terminal 5 or the like when the operation planning unit 43 fails in tentatively determining the driving plan or modifying the tentatively determined driving plan based on operational costs. At this time, the administrator may directly modify the operation plan through the management terminal 5, for example, or may change the control conditions and cause the energy management device 4 to recreate the operation plan.

Next, an example of the hardware configuration of the energy management system 1 will be described using FIG. 6.
FIG. 6 is a hardware configuration diagram of the main parts of the energy management system 1 according to the first embodiment.

Each function of the energy management system 1 can be realized by a processing circuit. The processing circuit includes at least one processor 100a and at least one memory 100b. The processing circuitry may include at least one dedicated hardware 200 along with or in place of the processor 100a and memory 100b.

When the processing circuit includes a processor 100a and a memory 100b, each function of the energy management system 1 is realized by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. The program is stored in memory 100b. The processor 100a implements each function of the energy management system 1 by reading and executing programs stored in the memory 100b.

The processor 100a is also referred to as a CPU (Central Processing Unit), a processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP. The memory 100b is configured of a nonvolatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, and EEPROM.

When the processing circuitry comprises dedicated hardware 200, the processing circuitry is implemented, for example, in a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

Each function of the energy management system 1 can be realized by a processing circuit. Alternatively, each function of the energy management system 1 can be realized all together by a processing circuit. Regarding each function of the energy management system 1, a part may be realized by the dedicated hardware 200, and other parts may be realized by software or firmware. In this way, the processing circuit realizes each function of the energy management system 1 using dedicated hardware 200, software, firmware, or a combination thereof.

From the above description, possible configurations of the technology according to the present disclosure include various configurations shown as additional notes below.
(Additional note 1)
a data acquisition unit that acquires data including information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of storage from a plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy; ,
an operation planning unit that creates an operation plan for the plurality of controlled equipment based on the data acquired by the data acquisition unit;
a procurement cost calculation unit that calculates the procurement cost of external energy when following the operation plan;
an operation cost estimating unit that estimates an operation cost for at least one of the plurality of control target facilities during a preset operation period when the operation plan is followed;
an equipment control unit that controls the plurality of equipment to be controlled based on the operation plan;
Equipped with
The operation planning unit creates the operation plan by tentatively determining the operation plan based on the procurement cost and then modifying it based on the operation cost.
Energy management device.
(Additional note 2)
comprising a deterioration estimation unit that estimates deterioration of the storage equipment due to storage and release of energy,
The operation cost estimation unit estimates the operation cost based on the deterioration estimated by the deterioration estimation unit.
The energy management device according to Supplementary Note 1.
(Additional note 3)
a weather information acquisition unit that acquires weather information including at least either a weather history or a weather forecast for a location where the plurality of controlled equipment is installed;
a deterioration estimation unit that estimates deterioration of the storage facility using the weather information;
Equipped with
The operation cost estimation unit estimates the operation cost based on the deterioration estimated by the deterioration estimation unit.
The energy management device according to Supplementary Note 1.
(Additional note 4)
The deterioration estimation unit estimates a storable amount of energy of the storage equipment based on the estimated deterioration of the storage equipment,
The operation planning unit creates the operation plan based on the storable amount of energy of the storage facility estimated by the deterioration estimating unit.
The energy management device according to Supplementary Note 2 or 3.
(Appendix 5)
a failure estimating unit that estimates the probability of occurrence of a failure during the operation period when the operation plan is followed for at least one of the plurality of equipment to be controlled;
a presentation unit that presents the failure occurrence probability estimated by the failure estimation unit to an administrator who manages the plurality of controlled equipment;
The energy management device according to any one of Supplementary Notes 1 to 4, comprising:
(Appendix 6)
The operation planning unit creates the operation plan so that a preset storage amount of energy to be used in an emergency is secured throughout the plurality of controlled equipment.
The energy management device according to any one of Supplementary notes 1 to 5.
(Appendix 7)
A plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy;
An integrated management device that collects information on energy suppliers;
a data acquisition unit that acquires data including information on at least one of energy demand, supplyable energy, and storage energy from the plurality of controlled equipment;
an operation planning unit that creates an operation plan for the plurality of controlled equipment based on the data acquired by the data acquisition unit;
a procurement cost calculation unit that calculates an external energy procurement cost when following the operation plan based on information collected by the integrated management device;
an operation cost estimating unit that estimates an operation cost for at least one of the plurality of control target facilities during a preset operation period when the operation plan is followed;
an equipment control unit that controls the plurality of equipment to be controlled based on the operation plan;
Equipped with
The operation planning unit creates the operation plan by tentatively determining the operation plan based on the procurement cost and then modifying it based on the operation cost.
Energy management system.
(Appendix 8)
a data acquisition step of acquiring data including information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of storage from a plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy; ,
an operation planning step of creating an operation plan for the plurality of controlled equipment based on the data acquired in the data acquisition step;
a procurement cost calculation step of calculating the procurement cost of external energy when following the operation plan;
an operation cost estimation step of estimating the operation cost during a preset operation period when the operation plan is followed for at least one of the plurality of controlled target facilities;
an equipment control step of controlling the plurality of equipment to be controlled based on the operation plan;
Equipped with
The operation planning step includes:
a provisional determination step of provisionally determining the operation plan based on the procurement cost;
a modification step of modifying the operation plan provisionally determined in the provisional determination step based on the operation cost;
including,
Energy management methods.
(Appendix 9)
to the computer,
a data acquisition step of acquiring data including information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of storage from a plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy; ,
an operation planning step of creating an operation plan for the plurality of controlled equipment based on the data acquired in the data acquisition step;
a procurement cost calculation step of calculating the procurement cost of external energy when following the operation plan;
an operation cost estimation step of estimating the operation cost during a preset operation period when the operation plan is followed for at least one of the plurality of controlled target facilities;
an equipment control step of controlling the plurality of equipment to be controlled based on the operation plan;
It is an energy management program that runs
The operation planning step includes:
a provisional determination step of provisionally determining the operation plan based on the procurement cost;
a modification step of modifying the operation plan provisionally determined in the provisional determination step based on the operation cost;
including,
Energy management program.

1 energy management system, 2 integrated management device, 3 controlled equipment, 3a solar equipment, 3b CGS equipment, 3c storage battery equipment, 3d air conditioning equipment, 3e hot water supply equipment, 3f lighting equipment, 3g ventilation equipment, 3h elevator equipment, 3i minutes Electric panel, 4 Energy management device, 5 Management terminal, 40 Data acquisition unit, 41 Operation history storage unit, 42 Weather information acquisition unit, 43 Operation planning unit, 44 Procurement cost calculation unit, 45 Operation cost estimation unit, 46 Deterioration estimation unit , 47 failure estimation unit, 48 presentation unit, 49 equipment control unit, 100a processor, 100b memory, 200 dedicated hardware

Claims (9)

a data acquisition unit that acquires data including information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of storage from a plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy; ,
an operation planning unit that creates an operation plan for the plurality of controlled equipment based on the data acquired by the data acquisition unit;
a procurement cost calculation unit that calculates the procurement cost of external energy when following the operation plan;
an operation cost estimating unit that estimates an operation cost for at least one of the plurality of control target facilities during a preset operation period when the operation plan is followed;
an equipment control unit that controls the plurality of equipment to be controlled based on the operation plan;
Equipped with
The operation planning unit creates the operation plan by tentatively determining the operation plan based on the procurement cost and then modifying it based on the operation cost.
Energy management device. comprising a deterioration estimation unit that estimates deterioration of the storage equipment due to storage and release of energy,
The operation cost estimation unit estimates the operation cost based on the deterioration estimated by the deterioration estimation unit.
The energy management device according to claim 1. a weather information acquisition unit that acquires weather information including at least either a weather history or a weather forecast for a location where the plurality of controlled equipment is installed;
a deterioration estimation unit that estimates deterioration of the storage facility using the weather information;
Equipped with
The operation cost estimation unit estimates the operation cost based on the deterioration estimated by the deterioration estimation unit.
The energy management device according to claim 1. The deterioration estimation unit estimates a storable amount of energy of the storage equipment based on the estimated deterioration of the storage equipment,
The operation planning unit creates the operation plan based on the storable amount of energy of the storage facility estimated by the deterioration estimating unit.
The energy management device according to claim 2 or 3. a failure estimating unit that estimates the probability of occurrence of a failure during the operation period when the operation plan is followed for at least one of the plurality of equipment to be controlled;
a presentation unit that presents the failure occurrence probability estimated by the failure estimation unit to an administrator who manages the plurality of controlled equipment;
The energy management device according to any one of claims 1 to 3, comprising: The operation planning unit creates the operation plan so that a preset storage amount of energy to be used in an emergency is secured throughout the plurality of controlled equipment.
The energy management device according to any one of claims 1 to 3. A plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy;
An integrated management device that collects information on energy suppliers;
a data acquisition unit that acquires data including information on at least one of energy demand, supplyable energy, and storage energy from the plurality of controlled equipment;
an operation planning unit that creates an operation plan for the plurality of controlled equipment based on the data acquired by the data acquisition unit;
a procurement cost calculation unit that calculates an external energy procurement cost when following the operation plan based on information collected by the integrated management device;
an operation cost estimating unit that estimates an operation cost for at least one of the plurality of control target facilities during a preset operation period when the operation plan is followed;
an equipment control unit that controls the plurality of equipment to be controlled based on the operation plan;
Equipped with
The operation planning unit creates the operation plan by tentatively determining the operation plan based on the procurement cost and then modifying it based on the operation cost.
Energy management system. a data acquisition step of acquiring data including information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of storage from a plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy; ,
an operation planning step of creating an operation plan for the plurality of controlled equipment based on the data acquired in the data acquisition step;
a procurement cost calculation step of calculating the procurement cost of external energy when following the operation plan;
an operation cost estimation step of estimating the operation cost during a preset operation period when the operation plan is followed for at least one of the plurality of controlled target facilities;
an equipment control step of controlling the plurality of equipment to be controlled based on the operation plan;
Equipped with
The operation planning step includes:
a provisional determination step of provisionally determining the operation plan based on the procurement cost;
a modification step of modifying the operation plan provisionally determined in the provisional determination step based on the operation cost;
including,
Energy management methods. to the computer,
a data acquisition step of acquiring data including information on at least one of the amount of energy demanded, the amount that can be supplied, and the amount of storage from a plurality of controlled equipment including storage equipment that stores energy and consumption equipment that consumes energy; ,
an operation planning step of creating an operation plan for the plurality of controlled equipment based on the data acquired in the data acquisition step;
a procurement cost calculation step of calculating the procurement cost of external energy when following the operation plan;
an operation cost estimation step of estimating the operation cost during a preset operation period when the operation plan is followed for at least one of the plurality of controlled target facilities;
an equipment control step of controlling the plurality of equipment to be controlled based on the operation plan;
It is an energy management program that runs
The operation planning step includes:
a provisional determination step of provisionally determining the operation plan based on the procurement cost;
a modification step of modifying the operation plan provisionally determined in the provisional determination step based on the operation cost;
including,
Energy management program.

Images