Energy management device, energy management system, energy management method, and energy management program

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

[Technical Field]

[0001] The present disclosure relates to an energy management device, an energy management system, an energy management method, and an energy management program. [Background technology]

[0002] Patent Document 1 discloses an example of a control device that manages a storage battery connected in parallel to an external power supply source. A power outage reserve storage capacity that should be reserved in the storage battery in case the power supply source stops supplying power is input to the control device. A charging time slot during which the storage battery is charged with power from the power supply source is input to the control device. The control device charges the storage battery during the input charging time slot. If the newly input, changed power outage reserve storage capacity is greater than the storage capacity of the storage battery, the control device charges the storage battery up to the changed power outage reserve storage capacity regardless of whether the charging time slot is the one input by the charging time slot input unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-176187 Summary of the Invention [Problem to be solved by the invention]

[0004] Storage batteries can deteriorate due to charging and discharging. The deterioration of a storage battery affects its lifespan. However, the control device of Patent Document 1 does not take into account the impact of the lifespan of controlled equipment such as a storage battery in the operation costs over a long period of operation. As a result, there is a possibility that uneconomical operation control will be performed on the controlled equipment over the operation period.

[0005] The present disclosure relates to solving such problems, and provides an energy management device, an energy management system, an energy management method, and an energy management program that perform economical operation control of controlled equipment over an operation period. [Means for solving the problem]

[0006] An energy management device according to the present disclosure includes a data acquisition unit that acquires data including information on at least one of an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from a plurality of controlled target facilities including storage facilities that store energy and consumption facilities that consume energy; an operation planning unit that creates an operation plan for the plurality of controlled target facilities based on the data acquired by the data acquisition unit; a procurement cost calculation unit that calculates the cost of procuring energy from outside when the operation plan is followed; an operation cost estimation unit that estimates an operation cost for at least one of the plurality of controlled target facilities during a predetermined operation period when the operation plan is followed; and an equipment control unit that controls the plurality of controlled target facilities based on the operation plan; The operation period is longer than the planning period of the operation plan, The operation planning unit ,before Based on the procurement costs The operation plan After making a tentative decision, It is determined whether the operating costs satisfy a preset operating standard, and if the operating standard is not satisfied, the provisionally determined operation plan is By adjusting based on the operating costs , the operation plan Create.

[0007] An energy management system according to the present disclosure includes: a plurality of controlled target facilities including storage facilities that store energy and consumption facilities that consume energy; an integrated management device that collects information on energy suppliers; a data acquisition unit that acquires data including at least one of information on an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from the plurality of controlled target facilities; an operation planning unit that creates an operation plan for the plurality of controlled target facilities based on the data acquired by the data acquisition unit; a procurement cost calculation unit that calculates an external energy procurement cost in accordance with the operation plan based on information collected by the integrated management device; an operation cost estimation unit that estimates an operation cost for at least one of the plurality of controlled target facilities during a preset operation period in accordance with the operation plan; and an equipment control unit that controls the plurality of controlled target facilities based on the operation plan, The operation period is longer than the planning period of the operation plan, The operation planning unit ,before Based on the procurement costs The operation plan After making a tentative decision, It is determined whether the operating costs satisfy a preset operating standard, and if the operating standard is not satisfied, the provisionally determined operation plan is By adjusting based on the operating costs , the operation plan Create.

[0008] The energy management method according to the present disclosure includes a data acquisition step of acquiring data including information on at least one of an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from a plurality of controlled target facilities including a storage facility that stores energy and a consumption facility that consumes energy; an operation planning step of creating an operation plan for the plurality of controlled target facilities based on the data acquired in the data acquisition step; a procurement cost calculation step of calculating an external energy procurement cost in accordance with the operation plan; an operation cost estimation step of estimating an operation cost for at least one of the plurality of controlled target facilities during a predetermined operation period in accordance with the operation plan; and an equipment control step of controlling the plurality of controlled target facilities based on the operation plan, The operation period is longer than the planning period of the operation plan, The operation planning step includes a tentative determination step of tentatively determining the operation plan based on the procurement cost. Determine whether the operating costs satisfy a preset operating standard, and if the operating standard is not satisfied, and a correction step of correcting the operation plan tentatively determined in the tentative determination step based on the operating cost.

[0009] An energy management program according to the present disclosure is an energy management program that causes a computer to execute a data acquisition step of acquiring data including information on at least one of an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from a plurality of controlled target facilities including storage facilities that store energy and consumption facilities that consume energy; an operation planning step of creating an operation plan for the plurality of controlled target facilities based on the data acquired in the data acquisition step; a procurement cost calculation step of calculating the cost of procuring energy from outside in accordance with the operation plan; an operation cost estimation step of estimating an operation cost for at least one of the plurality of controlled target facilities during a preset operation period in accordance with the operation plan; and an equipment control step of controlling the plurality of controlled target facilities based on the operation plan; The operation period is longer than the planning period of the operation plan, The operation planning step includes a tentative determination step of tentatively determining the operation plan based on the procurement cost. Determine whether the operating costs satisfy a preset operating standard, and if the operating standard is not satisfied, and a correction step of correcting the operation plan tentatively determined in the tentative determination step based on the operating cost. [Effects of the Invention]

[0010] According to the energy management device, energy management system, energy management method, or energy management program of the present disclosure, economical operation control is performed on the controlled equipment over the operation period. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a configuration diagram of an energy management system according to an embodiment. [Figure 2] 3 is a diagram showing an example of an operation plan in the energy management system according to the first embodiment. FIG. [Figure 3] FIG. 3 is a diagram showing an example of energy supply and demand based on the operation plan shown in FIG. 2. [Figure 4] FIG. 4 is a diagram showing an example of procurement costs based on the energy supply and demand shown in FIG. 3. [Figure 5] 5 is a flowchart showing an example of the operation of the energy management device according to the first embodiment. [Figure 6] 1 is a hardware configuration diagram of a main part of an energy management system according to a first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] The following describes embodiments of the subject matter of the present disclosure with reference to the accompanying drawings. In each drawing, identical or corresponding parts are designated by the same reference numerals, and redundant explanations are appropriately simplified or omitted. Note that the subject matter of the present disclosure is not limited to the following embodiments, and any component of the embodiments may be modified or omitted within the scope of the gist of the present disclosure.

[0013] Embodiment 1 FIG. 1 is a configuration diagram of an energy management system 1 according to an embodiment.

[0014] The energy management system 1 is a system that manages energy consumed or produced in a facility, business establishment, factory, or region to which the energy management system 1 is applied. The energy management system 1 procures energy from an external supplier. An example of the external supplier is an electric power company that supplies commercial AC power as energy. The energy management system 1 does not limit the form of energy that it manages. In addition to electricity, the energy management system 1 may also manage energy in the form of cold, fuel gas, or hydrogen, for example. The energy management system 1 includes an integrated management device 2, a plurality of controlled facilities 3, and an energy management device 4.

[0015] The integrated management device 2 is configured, for example, with 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, loading a program recorded on a recording medium and operating in accordance with the program. The recording medium on which the program is recorded may be, for example, built into the integrated management device 2, connected to the integrated management device 2, or connected to an external device that communicates with the integrated management device 2.

[0016] The integrated management device 2 manages information related to the entire energy management system 1. The integrated management device 2 collects information about energy suppliers, such as information about procurement prices, from the suppliers. The procurement price is the price at which a unit amount of energy, such as an amount of power, is procured. The procurement price information is, for example, information such as the unit price of electricity supplied by a power company. The procurement price is determined by a procurement menu. The procurement menu may be selected from a menu prepared and presented in advance by the supplier, or may be determined through an individual contract with the supplier. The procurement menu may present a fixed procurement price, a procurement price that varies depending on conditions such as the time of energy consumption, or a procurement price that is linked to the market price of energy, which changes over time. The integrated management device 2 may predict future procurement prices based on, for example, past history, for dynamic procurement prices, such as procurement prices that are linked to market prices.

[0017] Each controlled facility 3 is a facility under the management of the energy management system 1. The controlled facility 3 may include, for example, a facility that produces or converts energy. The controlled facility 3 includes, for example, a solar power facility 3a that converts sunlight into energy such as electricity. The controlled facility 3 includes, for example, a cogeneration facility (CGS facility 3b) that converts fuel into energy such as electricity and heat. The controlled facility 3 includes storage facility that stores energy. The storage facility includes, for example, a battery facility 3c that stores energy as electricity. The storage facility may store energy in the form of cold or other energy. The controlled facility 3 includes consumption facility that consumes energy supplied from an external supply source. The consumption facility includes, 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 facility 3d or the hot water supply facility 3e may also serve as storage facility that stores energy as heat. The controlled equipment 3 may include, for example, a distribution board 3i that distributes power, etc. The controlled equipment 3 may also include other equipment.

[0018] The plurality of controlled facilities 3 are managed by an administrator or the like. The administrator may be the owner of the controlled facilities 3, or a management company or maintenance company. The administrator manages the controlled facilities 3 through, for example, a management terminal 5 or the like. The management terminal 5 is, for example, a general-purpose information terminal such as a personal computer or a smartphone. The management terminal 5 is connected to the integrated management device 2, some or all of the controlled facilities 3, or devices of the energy management system 1 such as the energy management device 4, via a communication network such as the Internet or a telephone line network.

[0019] The energy management device 4 is configured, for example, with one or more server computers. Some or all of the functions of the energy management device 4 may be implemented by storage or processing resources on a cloud service. The energy management device 4 executes each function by, for example, loading a program recorded on a recording medium and operating in accordance with the program. The recording medium on which the program is recorded may be, for example, built into the energy management device 4, connected to the energy management device 4, or connected to an external device that communicates with the energy management device 4.

[0020] The energy management device 4 is equipped with functions such as a Building Energy Management System (BEMS). The energy management device 4 is a device that manages energy consumed or produced in multiple controlled facilities 3 that are subject to management. Energy suppliers and a procurement menu are set in the energy management device 4. The suppliers and the procurement menu are set, for example, via a management terminal 5 by an administrator of the controlled facilities 3. The energy management device 4 is applied to, for example, a facility installed in a business establishment, factory, or area to which the energy management system 1 is applied. Here, the facility to which the energy management device 4 is applied may be, for example, an indoor facility, an outdoor facility, or a facility that combines these. The facility to which the energy management device 4 is applied may consist of, for example, one or more buildings. The facility to which the energy management device 4 is applied may be, for example, part of a building. The controlled facilities 3 that the energy management device 4 manages are, for example, installed in the facility to which the energy management device 4 is applied. Note that, for example, if the business establishment, factory, or area to which the energy management system 1 is applied includes multiple facilities, the energy management system 1 may include multiple energy management devices 4 installed in each facility. The energy management device 4 includes a data acquisition unit 40, an operation history memory unit 41, a weather information acquisition unit 42, an operation planning unit 43, a procurement cost calculation unit 44, an operating cost estimation unit 45, a deterioration estimation unit 46, a failure estimation unit 47, a presentation unit 48, and an equipment control unit 49.

[0021] The data acquisition unit 40 is a part that has a function of acquiring data from each controlled facility 3 that is managed by the energy management device 4. The data acquisition unit 40 acquires, for example, data including information on at least one of the demand amount, available supply amount, and storage amount of energy. The data acquisition unit 40 may acquire data including the available storage amount of energy. The data acquisition unit 40 may acquire data from which at least one of the demand amount, available supply amount, and storage amount of energy can be derived.

[0022] The data acquisition unit 40 acquires data including information such as operating time, number of times operation is started and stopped, number of alarms, and enthalpy from, for example, the air conditioning equipment 3d. The data acquisition unit 40 acquires data including information such as operating time, number of times operation is started and stopped, and number of alarms from, for example, the ventilation equipment 3g. The data acquisition unit 40 acquires data including information such as operating time, number of times operation is started and stopped, and number of alarms from, for example, the lighting equipment 3f. The data acquisition unit 40 acquires data including information such as operating time, number of times operation is started and stopped, number of alarms, amount of hot water stored, and boiling time from, for example, the hot water supply equipment 3e. The data acquisition unit 40 acquires data including information such as operating time, number of times operation is started and stopped, and number of alarms from, for example, the elevator equipment 3h. The data acquisition unit 40 acquires data including information such as operating time, number of times operation is started and stopped, and number of alarms from, for example, the solar power equipment 3a. The data acquiring unit 40 acquires data including information such as the amount of stored power, operating time, and number of operating cycles from, for example, the battery storage equipment 3c. The data acquiring unit 40 acquires data including information such as operating costs and the number of alarms from, for example, the CGS equipment 3b. The data acquiring unit 40 acquires data including information such as power consumption for each controlled facility 3 from, for example, the distribution board 3i.

[0023] The operation history storage unit 41 is a part that stores the operation history of each of the control target facilities 3. The operation history storage unit 41 accumulates and stores, for example, the data acquired by the data acquisition unit 40 from each of the control target facilities 3 as operation history.

[0024] The weather information acquisition unit 42 is a part that has a function of acquiring weather information about the location where the control-target equipment 3 is installed. The location where the control-target equipment 3 is installed is, for example, an area where a facility to which an energy management device 4 that manages the control-target equipment 3 is applied is installed. The weather information includes information on one or both of the weather history observed so far and future weather forecasts. The weather information includes, for example, information such as temperature and humidity. The weather information acquisition unit 42 acquires weather information from, for example, an external weather information service.

[0025] The operation planning unit 43 is a component that has a function for creating an operation plan for the controlled equipment 3. The operation planning unit 43 creates the operation plan based on the data acquired by the data acquisition unit 40. The operation plan specifies the timing of starting or stopping operation of each controlled equipment 3, the output power during operation, and the operation mode. The output power during operation corresponds, for example, to the amount of energy consumed by the consuming equipment. The output power during operation corresponds, for example, to the amount of energy input / output to the storage equipment, such as the amount of power charged / discharged. The operation mode of the controlled equipment 3 includes, for example, an energy-saving mode in which the controlled equipment 3 is operated with priority given to reducing energy consumption, or a high-performance mode in which the controlled equipment 3 is operated with priority given to improving performance, such as user convenience. The elevator equipment 3h may be operated in the high-performance mode, for example, by switching some elevators to sleep mode to reduce power consumption. The lighting equipment 3f may be operated in the energy-saving mode, for example, by suppressing the upper limit of brightness when turned on by user operation. The operation plan is created, for example, for a planned period. The planning period is a short period such as one day, and the operation plan specifies, for example, the output or operation mode for each time period within the planning period.

[0026] The procurement cost calculation unit 44 is a part that has 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 facility 3 follows the operation plan created by the operation plan unit 43. In calculating the procurement cost, the procurement cost calculation unit 44 refers to information on suppliers collected by the integrated management device 2. For example, the procurement cost calculation unit 44 presents the suppliers and procurement menu currently used by the energy management device 4 to the integrated management device 2, and obtains the procurement unit price corresponding to the procurement menu from the integrated management device 2. Note that information on the suppliers and procurement menu used by the energy management device 4 may be managed by the integrated management device 2. For example, the procurement cost calculation unit 44 calculates the amount of energy required to be procured when following the operation plan, and calculates the procurement cost based on the calculated procurement amount and procurement unit price.

[0027] The operating cost estimating unit 45 is a component equipped with a function for estimating operating costs during an operating period for some or all of the controlled equipment 3. The operating period is a long period that is set in advance. The operating period is set, for example, to a period longer than the planned period of the operation plan. The operating period is set, for example, as a period corresponding to the lifespan or depreciation period of one of the controlled equipment 3. The operating costs include, for example, costs that change due to the accumulation of the operating history, such as deterioration of the controlled equipment 3. The operating costs may also include maintenance and inspection costs, such as the cost of replacing parts that become necessary due to deterioration of the controlled equipment 3, or the cost of repairing failures whose occurrence probability increases due to deterioration of the controlled equipment 3. The operating cost estimating unit 45 estimates the operating costs of each controlled equipment 3 when it follows the operation plan created by the operation planning unit 43, for example, as follows.

[0028] The operating cost estimating unit 45 estimates the operating costs of each controlled-target equipment 3 when the same operation as that according to the created operation plan is performed over the operating period. For example, if the operation plan created for each controlled-target equipment 3 is characterized by an operating index such as an operating frequency, the operating cost estimating unit 45 estimates the operating costs assuming that the operation characterized by the operating index will continue over the operating period. The operating index may include, for example, the number of times the controlled-target equipment 3 starts or stops operating. The operating index may also include, for example, the number of times energy is stored and released in the storage equipment. The operating index may be, for example, the number of charge / discharge cycles in the battery storage equipment 3c. The operating cost estimating unit 45 may also correct the estimated operating costs based on the operating history of each controlled-target equipment 3. The operating cost estimating unit 45 corrects the operating costs using, for example, the average, variance, or other statistics obtained by statistically processing the actual values ​​of the operating index based on the operating history.

[0029] The lifespan of the controlled equipment 3 may vary depending on its operating history. When the controlled equipment 3 reaches the end of its lifespan, renewal costs, such as the disposal and construction of the controlled equipment 3, are incurred. Even if the renewal cost itself does not change, the operational period fluctuates depending on the lifespan, resulting in a change in the renewal cost per operational period. Therefore, the operating cost estimating unit 45 may calculate the installation or renewal 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 operating cost estimating unit 45 may estimate the operating cost by comparing the total evaluation of the reduction in operating costs due to proactive operation and the shortening of the lifespan due to proactive operation with the total evaluation of the increase in operating costs due to life-extending operation and the extension of the lifespan. The operating cost estimating unit 45 may estimate the operating cost by including a value, such as the renewal cost of the controlled equipment 3 divided by its lifespan, or may estimate the lifespan itself as one expression of the operating cost. Alternatively, since the timing of occurrence of renewal costs may vary depending on the lifespan, the operating cost estimation unit 45 may estimate the value of the future value of renewal costs discounted to the present value based on the timing of occurrence of renewal costs, and include this in the operating cost.

[0030] The deterioration estimation unit 46 is a part that has a function of estimating deterioration over the operating period of the controlled equipment 3. The deterioration of the controlled equipment 3 includes wear or consumption of the controlled equipment 3, or a decline in functionality of the controlled equipment 3. The deterioration of the controlled equipment 3 estimated by the deterioration estimation unit 46 is used, for example, to estimate the operating cost in the operating cost estimation unit 45. The deterioration of the controlled equipment 3 is used, for example, to estimate the operating cost taking into account the operating period of the controlled equipment 3, using the predicted 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 controlled equipment 3. The deterioration of storage equipment may include a decline in functionality such as a decrease in the amount of storage that can be achieved.

[0031] Deterioration of the storage equipment occurs, for example, due to the storage and release of energy. At this time, the deterioration estimation unit 46 estimates the deterioration of the storage equipment based on operation indices such as the number of times energy is stored and released. For example, the deterioration estimation unit 46 estimates the deterioration when each controlled facility 3 follows the operation plan created by the operation plan unit 43 using operation indices and the like, in the same way as the operating cost estimation unit 45.

[0032] Furthermore, deterioration of storage equipment occurs due to changes in the operating environment, such as weather conditions. At this time, the deterioration estimation unit 46 estimates deterioration of the storage equipment using weather information acquired by the weather information acquisition unit 42. The deterioration estimation unit 46 estimates the ambient temperature of the operating environment of the storage equipment, for example, based on the weather information. The deterioration estimation unit 46 estimates deterioration of storage equipment, such as the battery equipment 3c, based on the estimated ambient temperature.

[0033] The failure estimation unit 47 is a component equipped with a function for estimating the probability of failure during the operation period for some or all of the controlled equipment 3. The failure estimation unit 47, for example, estimates the probability of failure when each controlled equipment 3 follows the operation plan created by the operation plan unit 43 using operation indices, as with the operation cost estimation unit 45. The failure estimation unit 47 estimates a higher probability of failure, for example, the greater the cumulative number of times the controlled equipment 3 starts or stops operation, or the cumulative number of times energy is stored and released in the storage facility. The failure probability of the controlled equipment 3 estimated by the failure estimation unit 47 is used, for example, to estimate the operation cost in the operation cost estimation unit 45. For example, the damage amount, impact, and repair cost due to the estimated failure are compared and evaluated with the repair cost of preventive maintenance, and the operation cost is revised to reflect the appropriate operation plan. Alternatively, the impact of a failure on the operation cost may be calculated using an expected value obtained by multiplying the estimated probability of failure by the repair cost of the failure. The impact of a failure on operational costs may be expressed, for example, by a probability distribution of possible operational costs, or may be calculated by a probabilistic simulation such as the Monte Carlo method.

[0034] The presentation unit 48 is a part that has a function of presenting information to the manager of the controlled equipment 3. The presentation unit 48 presents information to the manager through the management terminal 5, for example, by outputting a notification signal to the management terminal 5. The presentation unit 48 presents information such as the operation plan created by the operation plan unit 43, the procurement cost calculated by the procurement cost calculation unit 44, the operation cost estimated by the operation cost estimation unit 45, the deterioration estimated by the deterioration estimation unit 46, or the probability of occurrence of a failure estimated by the failure estimation unit 47 to the manager.

[0035] The equipment control unit 49 is a part that has a function of controlling the operation of the control-target equipment 3. The equipment control unit 49 controls the operation of each control-target equipment 3, for example, by outputting a control signal to each control-target equipment 3. The equipment control unit 49 controls the operation of each control-target equipment 3 based on the operation plan created by the operation plan unit 43.

[0036] Next, an example of calculation of procurement costs in the energy management device 4 will be described with reference to FIGS. 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. FIG. 4 is a diagram showing an example of procurement costs based on the energy supply and demand shown in FIG.

[0037] In Figure 2, an example of an operation plan is shown using a stacked bar graph. The horizontal axis of Figure 2 represents the passage of time. The vertical axis of Figure 2 represents the amount of energy produced or consumed. The vertical axis of Figure 2 is set so that the amount of production is a negative value.

[0038] The operation plan is expressed by the energy consumption or production amount of each controlled facility 3 for each time period during the planning period. Here, for an operation plan that includes uncertainty, such as the amount of energy produced by the solar power facility 3a, the operation plan may be expressed by a predicted value of the energy production amount. The predicted value is calculated by the operation planning unit 43, for example, based on the operation history, for example. The operation plan is created based on weather information during the planning period or a prediction of the flow of people in the facility, for example. The operation plan may also be created based on the operation history, for example.

[0039] In Figure 3, an example of energy supply and demand is shown using a line graph. The horizontal axis of Figure 3 represents the passage of time. The vertical axis of Figure 3 represents the amount of energy demanded or supplied. The vertical axis of Figure 3 is set so that the amount of supply is a negative value.

[0040] FIG. 3 shows the total amount of energy demand and supply. The total amount of energy supply is the sum of the amount of energy procured from external suppliers and the amount of energy produced in the controlled equipment 3. The amount of energy produced here may include the amount of energy released that was stored in the storage equipment. The total amount of energy demand is calculated, for example, based on the operation plan of the consuming equipment. The amount of energy production is calculated, for example, based on the operation plan of the controlled equipment 3 that produces or releases energy. The amount of energy procured is calculated, for example, as the portion of the total energy demand that cannot be covered by the amount of energy produced. The total amount of energy supply is calculated, for example, based on the amount of energy produced and the amount of energy procured.

[0041] In Figure 4, an example of procurement costs is shown using a composite graph of a line graph and a bar graph. The horizontal axis of Figure 4 represents the passage of time. The vertical axis on the left side of Figure 4 represents the procurement amount. The vertical axis on the right side of Figure 4 represents the procurement unit price.

[0042] The procurement unit cost is based on, for example, information collected by the integrated management device 2. The procurement cost estimation unit calculates the procurement cost for each time period based on the energy procurement amount and procurement unit cost for each time period. The procurement cost estimation unit calculates the procurement cost for the planning period by taking the sum of the procurement costs for each time period during the planning period.

[0043] The operation planning unit 43 provisionally determines an operation plan based on the procurement cost calculated by the procurement cost calculation unit 44. The operation planning unit 43 provisionally determines the operation plan, for example, by optimization processing using the operation plan as a design variable and the procurement cost as an objective function. The operation planning unit 43 may provisionally determine the operation plan by processing such as machine learning using data acquired by the data acquisition unit 40 as input and an operation plan as output. At this time, the machine learning model is trained, for example, to reduce the procurement cost as much as possible.

[0044] Next, an example of the operation of the energy management device 4 will be described with reference to FIG. FIG. 5 is a flowchart showing an example of the operation of the energy management device 4 according to the first embodiment.

[0045] 5 is started at predetermined intervals, for example. The predetermined intervals may be regular intervals corresponding to the planning period.

[0046] In step S501, the data acquisition unit 40 acquires data from each piece of control target equipment 3. The acquired data is accumulated and stored in the operation history storage unit 41. Thereafter, the processing of the energy management device 4 proceeds to step S502.

[0047] In step S502, the operation plan unit 43 creates a candidate operation plan for the control-target equipment 3 based on the data acquired by the data acquisition unit 40. After that, the process of the energy management device 4 proceeds to step S503.

[0048] In step S503, the procurement cost calculation unit 44 calculates the procurement cost for the planning period in accordance with the candidate operation plan, based on the candidate operation plan created by the operation planning unit 43. After that, the processing of the energy management device 4 proceeds to step S504.

[0049] In step S504, the operation planning unit 43 determines whether a candidate operation plan can be tentatively determined. The operation planning unit 43 determines that a candidate operation plan can be tentatively determined if it determines that the candidate operation plan can be adopted from the perspective of procurement cost. For example, when tentatively determining an operation plan by an optimization process to reduce procurement cost, the operation planning unit 43 determines that a candidate operation plan can be tentatively determined if a termination condition of the optimization process is satisfied. The termination condition of the optimization process is, for example, a convergence condition if the optimization process is performed by convergence calculation, or a condition on the number of calculations if the optimization process is performed by a predetermined number of iterative calculations. Alternatively, the operation planning unit 43 may determine that a candidate operation plan can be tentatively determined if, for example, the procurement cost is below a predetermined threshold. If the operation planning unit 43 determines that a candidate operation plan can be tentatively determined, the processing of the energy management device 4 proceeds to step S505. On the other hand, if the operation plan unit 43 determines that the operation plan candidate cannot be tentatively determined, the process of the energy management device 4 proceeds to step S502, where the energy management device 4 recreates the operation plan candidate.

[0050] In step S505, the operating cost estimation unit 45 estimates the operating costs for some or all of the controlled equipment 3. At this time, the operating cost estimation unit 45 may estimate the operating costs using the occurrence probability of deterioration estimated by the deterioration estimation unit 46 or of failure estimated by the failure estimation unit 47. Thereafter, the processing of the energy management device 4 proceeds to step S506.

[0051] In step S506, the operation plan unit 43 determines whether the estimated operating cost satisfies the operating standard. The operating standard is set in advance, for example, through the management terminal 5. The operating standard is, for example, a standard as to whether the estimated operating cost is below a preset tolerance. The operating standard may be, for example, a standard as to whether the estimated lifespan, as one expression of the operating cost, is longer than a preset tolerance. If the operating cost does not satisfy the operating standard, the processing of the energy management device 4 proceeds to step S507. On the other hand, if the operating cost satisfies the operating standard, the operation plan unit 43 creates an operation plan by adopting the provisionally determined operation plan candidate as is. Thereafter, the processing of the energy management device 4 proceeds to step S508.

[0052] In step S507, the operation planning unit 43 modifies the provisionally determined operation plan to reduce the operating costs. At this time, the operation planning unit 43 adjusts, for example, the output or operation mode for each time period within the planning period so as to change the operation indicators that affect the operating costs. For the modified operation plan, the procurement cost calculation unit 44 may calculate the procurement costs, and the operation cost estimation unit 45 may estimate the operating costs. At this time, the operation planning unit 43 may compare the reduction in operating costs due to the modification of the operation plan with the increase or decrease in procurement costs. If the comparison shows that no cost benefit is obtained due to an increase in procurement costs that exceeds the effect of the reduction in operating costs, the operation planning unit 43 may re-modify the operation plan. The operation planning unit 43 may compare the reduction in the estimated value of operating costs and the increase or decrease in the calculated value of procurement costs directly, or may compare them after multiplying them by a weighting coefficient or the like. The weighting coefficient may, for example, weight procurement costs that occur closer in time and are more accurate, or weight operating costs that have a greater impact. Alternatively, the weighting coefficient may be set based on the operating period and the planning period. The operation planning unit 43 may compare the reduction in the estimated value of the operating cost divided by the operating period with the increase or decrease in the calculated value of the procurement cost divided by the planning period. After the operation plan is corrected, the processing of the energy management device 4 proceeds to step S508. Note that after correcting the operation plan, the energy management device 4 may proceed to, for example, step S502 to create a candidate operation plan again. At this time, the operation planning unit 43 may impose a constraint condition that constrains the operation index corrected based on the operating cost when tentatively determining the operation plan.

[0053] In step S508, the failure estimation unit 47 estimates the probability of failure occurrence for some or all of the controlled equipment 3. If the probability of failure occurrence has already been estimated, for example, when a candidate operation plan is adopted as the operation plan as is, the failure estimation 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 is set, for example, via the management terminal 5. If the determination result is YES, the processing of the energy management device 4 proceeds to step S509. On the other hand, if the determination result is NO, the processing of the energy management device 4 proceeds to step S511.

[0054] In step S509, the presentation unit 48 presents the probability of occurrence of a failure estimated by the failure estimation unit 47 to the manager via the management terminal 5 or the like. The presentation unit 48 may also present an operation plan, procurement costs, operating costs, etc. Thereafter, the processing of the energy management device 4 proceeds to step S510.

[0055] The manager who receives the information from the presentation unit 48 considers whether or not to change the control conditions for some or all of the controlled equipment 3.

[0056] The control conditions may include, for example, criteria for determining whether to make a tentative decision in step S504 or operation criteria in step S506. The control conditions may include, for example, suppliers and procurement options currently used by the energy management device 4. The suppliers and procurement options selectable as control conditions are presented to the administrator via the management terminal 5, for example, as information collected by the integrated management device 2. The information may be obtained directly by the management terminal 5 from the integrated management device 2, or may be obtained from the integrated management device 2 by the presentation unit 48 of the energy management device 4 or the like and then transmitted to the management terminal 5. The energy management device 4 may also create operation plans, calculate procurement costs, and estimate operating costs for suppliers and procurement options that are not currently used. In this case, the presentation unit 48 of the energy management device 4 may present the suppliers and procurement options selectable as control conditions to the administrator together with the operation plans, procurement costs, operating costs, etc.

[0057] When the manager decides to change the control conditions, the changed control conditions are transmitted to the energy management device 4 via the management terminal 5.

[0058] In step S510, the operation plan 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.

[0059] In step S511, the equipment control unit 49 generates a control signal based on the operation plan for each piece of control-target equipment 3. The equipment control unit 49 outputs the generated control signal to the corresponding piece of control-target equipment 3. Thereafter, the processing of the energy management device 4 ends.

[0060] As described above, the energy management system 1 according to the first embodiment includes a plurality of controlled-target facilities 3, an integrated management device 2, and an energy management device 4. The controlled-target facilities 3 include storage facilities that store energy and energy consumption facilities that consume energy. The integrated management device 2 collects information on energy suppliers. The energy management device 4 includes a data acquisition unit 40, an operation plan unit 43, a procurement cost calculation unit 44, an operating cost estimation unit 45, and an equipment control unit 49. The data acquisition unit 40 acquires data including at least one of information on the energy demand, available supply, and storage amount from the controlled-target facilities 3. The operation plan unit 43 creates an operation plan for the controlled-target facilities 3 based on the data acquired by the data acquisition unit 40. The procurement cost calculation unit 44 calculates the external energy procurement cost when the operation plan is followed, based on information collected by the integrated management device 2, etc. The operating cost estimation unit 45 estimates the operating cost for at least one of the controlled-target facilities 3 during a predetermined operation period when the operation plan is followed. The equipment control unit 49 controls the plurality of pieces of control-target equipment 3 based on the operation plan. The operation plan unit 43 creates the operation plan by tentatively determining the operation plan based on the procurement cost and then modifying the plan based on the operating cost. Moreover, the energy management method according to the first embodiment includes a data acquisition step, an operation planning step, a procurement cost calculation step, an operating cost estimation step, and an equipment control step. The data acquisition step is a step of acquiring data including at least one of information on energy demand, available supply, and storage from a plurality of controlled-target facilities 3. The operation planning step is a step of creating an operation plan for the plurality of controlled-target facilities 3 based on the data acquired in the data acquisition step. The procurement cost calculation step is a step of calculating the cost of external energy procurement in accordance with the operation plan. The operating cost estimation step is a step of estimating the operating cost for at least one of the controlled-target facilities 3 during an operation period in accordance with the operation plan. The equipment control step is a step of controlling the plurality of controlled-target facilities 3 based on the operation plan. The operation planning step includes a tentative determination step and a correction step. The tentative determination step is a step of tentatively determining an operation plan based on the procurement cost. The correction step is a step of correcting the operation plan tentatively determined in the tentative determination step based on the operating cost. Moreover, the energy management program according to the first embodiment causes a computer such as the energy management device 4 to execute a data acquisition step, an operation planning step, a procurement cost calculation step, an operating cost estimation step, and an equipment control step.

[0061] With this configuration, the operation plan for the controlled equipment 3 is tentatively determined to reduce procurement costs incurred in the short term, and then modified based on operating costs, which have long-term effects. This prevents uneconomical operation control, such as overutilization of the controlled equipment 3 or excessive conservation of the controlled equipment 3. This enables economically beneficial operation control of the controlled equipment 3 over a long operating period equivalent to its lifespan or depreciation period. Furthermore, there may be differences in accuracy and monetary scale between procurement costs and operating costs. Since the operation plan is tentatively determined based on procurement costs, which are more accurate, and then adjusted based on operating costs, the stability and accuracy of calculations related to the creation of the operation plan are further improved.

[0062] The energy management device 4 also includes a deterioration estimation unit 46. The deterioration estimation unit 46 estimates deterioration of the storage equipment due to the storage and release of energy. The operating cost estimation unit 45 estimates operating costs based on the deterioration estimated by the deterioration estimation unit 46.

[0063] This configuration allows for more accurate assessment of economic viability over long periods of operation, as the deterioration of storage equipment due to energy storage and release is taken into account in the operating costs.

[0064] The energy management device 4 also includes a weather information acquisition unit 42 and a deterioration estimation unit 46. The weather information acquisition unit 42 acquires weather information including at least one of weather history and weather forecast for the location where the plurality of control target facilities 3 are installed. The deterioration estimation unit 46 estimates deterioration of the storage facility using the weather information. The operating cost estimation unit 45 estimates operating costs based on the deterioration estimated by the deterioration estimation unit 46.

[0065] With this configuration, deterioration of the controlled equipment 3 due to weather conditions such as changes in temperature or humidity is taken into account in the operating costs, which increases the accuracy of the evaluation of economic efficiency over a long operating period.

[0066] The energy management device 4 also includes a failure estimation unit 47 and a presentation unit 48. The failure estimation unit 47 estimates the probability of failure occurring during an operation period when an operation plan is followed for at least one of the control-target facilities 3. The presentation unit 48 presents the failure occurrence probability estimated by the failure estimation unit 47 to a manager who manages multiple control-target facilities 3.

[0067] With this configuration, the risk of failure during the operation period is presented to the manager, enabling the possibility of failure to be taken into consideration when operating the controlled equipment 3. Note that the presentation unit 48 may present the information only when the probability of failure exceeds a threshold, or may present the information regardless of whether the probability of failure is high or low.

[0068] The deterioration estimation unit 46 may estimate the storable energy capacity of the storage facility based on the estimated deterioration of the storage facility. For example, the deterioration estimation unit 46 performs estimation assuming that the storable capacity decreases as the deterioration progresses. The degree of deterioration and the storable capacity may be related, for example, by a monotonically decreasing function or a preset table. Furthermore, the operation plan unit 43 may create an operation plan based on the storable energy capacity of the storage facility estimated by the deterioration estimation unit 46.

[0069] With this configuration, the decrease in storage capacity due to deterioration of the storage facilities is taken into account in the operation plan, thereby improving the accuracy of the evaluation of economic efficiency.

[0070] Furthermore, the operation planning unit 43 may create an operation plan to ensure a preset storage amount of energy to be used in an emergency across the plurality of controlled facilities 3. The storage amount corresponds to, for example, the energy required when Business Continuity Planning (BCP) is activated. The operation planning unit 43 may create an operation plan to ensure the storage amount based on the energy storable amount of energy in the storage equipment after deterioration estimated by the deterioration estimation unit 46. The operation planning unit 43 may impose the ensuring of the storage amount as, for example, a constraint condition when tentatively determining a candidate operation plan, or as an operation standard. The ensuring of the storage amount may be set in advance via the management terminal 5 as a control condition.

[0071] This configuration will enable the energy required in emergencies, such as when BCP is activated, to be secured more economically and reliably.

[0072] Furthermore, when the operation planning unit 43 fails to tentatively determine an operation plan or to modify the tentatively determined operation plan due to the operating cost, the presentation unit 48 may present the operation plan to the manager via the management terminal 5. In this case, the manager may directly modify the operation plan via the management terminal 5, for example, or may change the control conditions and have the energy management device 4 re-create the operation plan.

[0073] Next, an example of the hardware configuration of the energy management system 1 will be described with reference to FIG. FIG. 6 is a hardware configuration diagram of a main part of the energy management system 1 according to the first embodiment.

[0074] Each function of the energy management system 1 may be realized by a processing circuit. The processing circuit includes at least one processor 100 a and at least one memory 100 b. The processing circuit may include at least one dedicated hardware 200 in addition to or in place of the processor 100 a and the memory 100 b.

[0075] 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 the memory 100b. The processor 100a realizes each function of the energy management system 1 by reading and executing the program stored in the memory 100b.

[0076] The processor 100a is also called a CPU (Central Processing Unit), processing device, arithmetic unit, microprocessor, microcomputer, or DSP. The memory 100b is configured by, for example, a non-volatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, or EEPROM.

[0077] Where the processing circuitry comprises dedicated hardware 200, the processing circuitry may be implemented, for example, as a single circuit, multiple circuits, a programmed processor, parallel programmed processors, an ASIC, an FPGA, or a combination thereof.

[0078] 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 collectively by a processing circuit. Some of the functions of the energy management system 1 may be realized by dedicated hardware 200, and the other parts may be realized by software or firmware. In this way, the processing circuit realizes each function of the energy management system 1 by dedicated hardware 200, software, firmware, or a combination of these.

[0079] From the above explanation, possible configurations of the technology according to the present disclosure include the configurations listed below as appendices. (Appendix 1) a data acquisition unit that acquires data including at least one of information on the demand amount, available supply amount, and stored amount of energy from a plurality of controlled facilities including a storage facility that stores energy and a consumption facility that consumes energy; an operation planning unit that creates an operation plan for the plurality of controlled facilities based on the data acquired by the data acquisition unit; a procurement cost calculation unit that calculates the cost of procuring energy from outside in accordance with the operation plan; an operating cost estimating unit that estimates an operating cost for at least one of the plurality of control-target facilities during a preset operating period in accordance with the operation plan; an equipment control unit that controls the plurality of control target equipment based on the operation plan; Equipped with The operation planning unit creates the operation plan by provisionally determining the operation plan based on the procurement cost and then modifying the operation plan based on the operating cost. Energy management devices. (Appendix 2) a deterioration estimation unit that estimates deterioration of the storage facility due to the storage and release of energy; Equipped with the operating cost estimation unit estimates the operating cost based on the deterioration estimated by the deterioration estimation unit; 10. The energy management device of claim 1. (Appendix 3) a weather information acquisition unit that acquires weather information including at least one of weather history and weather forecast for a location where the plurality of control target facilities are installed; a deterioration estimation unit that estimates deterioration of the storage facility using the meteorological information; Equipped with the operating cost estimation unit estimates the operating cost based on the deterioration estimated by the deterioration estimation unit; 10. The energy management device of claim 1. (Appendix 4) the deterioration estimation unit estimates a storable amount of energy in the storage facility based on the estimated deterioration of the storage facility; the operation planning unit creates the operation plan based on the energy storable amount of the storage facility estimated by the deterioration estimation unit. 4. The energy management device of claim 2 or 3. (Appendix 5) a failure estimation unit that estimates a probability of a failure occurring during the operation period in accordance with the operation plan for at least one of the plurality of control target facilities; a presentation unit that presents the probability of occurrence of a failure estimated by the failure estimation unit to a manager who manages the plurality of control target facilities; 5. The energy management device of claim 1, further comprising: (Appendix 6) the operation planning unit creates the operation plan so as to ensure, across the plurality of controlled facilities, a predetermined storage amount of energy to be used in an emergency. 6. An energy management device according to any one of claims 1 to 5. (Appendix 7) a plurality of controlled facilities including a storage facility that stores energy and a consumption facility 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 an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from the plurality of controlled facilities; an operation planning unit that creates an operation plan for the plurality of controlled facilities based on the data acquired by the data acquisition unit; a procurement cost calculation unit that calculates the cost of procuring energy from outside in accordance with the operation plan based on information collected by the integrated management device; an operating cost estimating unit that estimates an operating cost for at least one of the plurality of control-target facilities during a preset operating period in accordance with the operation plan; an equipment control unit that controls the plurality of control target equipment based on the operation plan; Equipped with The operation planning unit creates the operation plan by provisionally determining the operation plan based on the procurement cost and then modifying the operation plan based on the operating cost. Energy management system. (Appendix 8) a data acquisition step of acquiring data including information on at least one of an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from a plurality of controlled facilities including a storage facility that stores energy and a consumption facility that consumes energy; an operation planning step of creating an operation plan for the plurality of controlled facilities based on the data acquired in the data acquisition step; a procurement cost calculation step of calculating an external energy procurement cost in accordance with the operation plan; an operation cost estimation step of estimating an operation cost for at least one of the plurality of control-target facilities during a preset operation period in accordance with the operation plan; an equipment control step of controlling the plurality of control target equipment 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 correction step of correcting the operation plan tentatively determined in the tentative determination step based on the operating cost; Including, Energy management methods. (Appendix 9) On the computer, a data acquisition step of acquiring data including information on at least one of an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from a plurality of controlled facilities including a storage facility that stores energy and a consumption facility that consumes energy; an operation planning step of creating an operation plan for the plurality of controlled facilities based on the data acquired in the data acquisition step; a procurement cost calculation step of calculating an external energy procurement cost in accordance with the operation plan; an operation cost estimation step of estimating an operation cost for at least one of the plurality of control-target facilities during a preset operation period in accordance with the operation plan; an equipment control step of controlling the plurality of control target equipment based on the operation plan; It is an energy management program that The operation planning step includes: a provisional determination step of provisionally determining the operation plan based on the procurement cost; a correction step of correcting the operation plan tentatively determined in the tentative determination step based on the operating cost; Including, Energy management programs. [Explanation of symbols]

[0080] 1 Energy management system, 2 Integrated management device, 3 Controlled equipment, 3a Solar power equipment, 3b CGS equipment, 3c Battery equipment, 3d Air conditioning equipment, 3e Hot water equipment, 3f Lighting equipment, 3g Ventilation equipment, 3h Elevator equipment, 3i Distribution board, 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

1. a data acquisition unit that acquires data including at least one of information on the demand amount, available supply amount, and stored amount of energy from a plurality of controlled facilities including a storage facility that stores energy and a consumption facility that consumes energy; an operation planning unit that creates an operation plan for the plurality of controlled facilities based on the data acquired by the data acquisition unit; a procurement cost calculation unit that calculates the cost of procuring energy from outside in accordance with the operation plan; an operating cost estimating unit that estimates an operating cost for at least one of the plurality of control-target facilities during a preset operating period in accordance with the operation plan; an equipment control unit that controls the plurality of control target equipment based on the operation plan; Equipped with The operation period is longer than the planning period of the operation plan, the operation planning unit tentatively determines the operation plan based on the procurement cost, and then determines whether the operation cost satisfies a preset operation standard, and if the operation standard is not satisfied, creates the operation plan by correcting the tentatively determined operation plan based on the operation cost. Energy management devices.

2. a deterioration estimation unit that estimates deterioration of the storage facility due to the storage and release of energy; Equipped with the operating cost estimation unit estimates the operating cost based on the deterioration estimated by the deterioration estimation unit; The energy management device of claim 1 .

3. a weather information acquisition unit that acquires weather information including at least one of weather history and weather forecast for a location where the plurality of control target facilities are installed; a deterioration estimation unit that estimates deterioration of the storage facility using the meteorological information; Equipped with the operating cost estimation unit estimates the operating cost based on the deterioration estimated by the deterioration estimation unit; The energy management device of claim 1 .

4. the deterioration estimation unit estimates a storable amount of energy in the storage facility based on the estimated deterioration of the storage facility; the operation planning unit creates the operation plan based on the energy storable amount of the storage facility estimated by the deterioration estimation unit. The energy management device according to claim 2 or 3.

5. a failure estimation unit that estimates a probability of a failure occurring during the operation period in accordance with the operation plan for at least one of the plurality of control target facilities; a presentation unit that presents the probability of occurrence of a failure estimated by the failure estimation unit to a manager who manages the plurality of control target facilities; The energy management device according to claim 1 , further comprising:

6. the operation planning unit creates the operation plan so as to ensure, across the plurality of controlled facilities, a predetermined storage amount of energy to be used in an emergency. The energy management device according to any one of claims 1 to 3.

7. The operation planning unit modifies the provisionally determined operation plan based on the operating costs, and then imposes constraints that constrain the operation indicators modified based on the operating costs, and then recreates the operation plan based on the procurement costs. The energy management device according to any one of claims 1 to 3.

8. a plurality of controlled facilities including a storage facility that stores energy and a consumption facility 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 an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from the plurality of controlled facilities; an operation planning unit that creates an operation plan for the plurality of controlled facilities based on the data acquired by the data acquisition unit; a procurement cost calculation unit that calculates the cost of procuring energy from outside in accordance with the operation plan based on information collected by the integrated management device; an operating cost estimating unit that estimates an operating cost for at least one of the plurality of control-target facilities during a preset operating period in accordance with the operation plan; an equipment control unit that controls the plurality of control target equipment based on the operation plan; Equipped with The operation period is longer than the planning period of the operation plan, the operation planning unit tentatively determines the operation plan based on the procurement cost, and then determines whether the operation cost satisfies a preset operation standard, and if the operation standard is not satisfied, creates the operation plan by correcting the tentatively determined operation plan based on the operation cost. Energy management system.

9. a data acquisition step of acquiring data including information on at least one of an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from a plurality of controlled facilities including a storage facility that stores energy and a consumption facility that consumes energy; an operation planning step of creating an operation plan for the plurality of controlled facilities based on the data acquired in the data acquisition step; a procurement cost calculation step of calculating an external energy procurement cost in accordance with the operation plan; an operation cost estimation step of estimating an operation cost for at least one of the plurality of control-target facilities during a preset operation period in accordance with the operation plan; an equipment control step of controlling the plurality of control target equipment based on the operation plan; Equipped with The operation period is longer than the planning period of the operation plan, The operation planning step includes: a provisional determination step of provisionally determining the operation plan based on the procurement cost; a correction step of determining whether the operating cost satisfies a predetermined operating standard, and if the operating standard is not satisfied, correcting the operation plan tentatively determined in the tentative determination step based on the operating cost; Including, Energy management methods.

10. On the computer, a data acquisition step of acquiring data including information on at least one of an amount of energy demand, an amount of energy available for supply, and an amount of energy stored from a plurality of controlled facilities including a storage facility that stores energy and a consumption facility that consumes energy; an operation planning step of creating an operation plan for the plurality of controlled facilities based on the data acquired in the data acquisition step; a procurement cost calculation step of calculating an external energy procurement cost in accordance with the operation plan; an operation cost estimation step of estimating an operation cost for at least one of the plurality of control-target facilities during a preset operation period in accordance with the operation plan; an equipment control step of controlling the plurality of control target equipment based on the operation plan; It is an energy management program that The operation period is longer than the planning period of the operation plan, The operation planning step includes: a provisional determination step of provisionally determining the operation plan based on the procurement cost; a correction step of determining whether the operating cost satisfies a predetermined operating standard, and if the operating standard is not satisfied, correcting the operation plan tentatively determined in the tentative determination step based on the operating cost; Including, Energy management programs.

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