ENERGY-SAVING EFFECT DISPLAY DEVICE, ENERGY-SAVING EFFECT DISPLAY METHOD, AND ENERGY-SAVING EFFECT DISPLAY PROGRAM

Abstract

To accurately evaluate an effect of an energy-saving measure.SOLUTION: An energy-saving effect display device includes: a calculation part configured to obtain, according to performance data related to a past operation condition of an object facility, implementation time index data related to an energy use status in the object facility in an implementation time of an energy-saving measure and non-implementation time index data related to an energy use status at the object facility in a non-implementation time of the energy-saving measure; and a display control part configured to cause a display part to display improvement effect information showing a relation between the performance data and improvement effect data showing an improvement effect by an implementation of the energy-saving measure obtained according to the implementation time index data and the non-implementation time index data.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to an energy-saving effect display device, an energy-saving effect display method, and an energy-saving effect display program. [Background technology]

[0002] For example, energy saving is being considered in facilities such as factories. Known energy saving technologies are described in, for example, Patent Documents 1 to 4. For example, Patent Document 3 discloses a technology that calculates energy costs before and after the application of an energy saving measure based on past performance data of a target facility, and compares the energy costs before and after the application of the energy saving measure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-106514 A [Patent Document 2] JP 2006-304595 A [Patent Document 3] JP 2005-141403 A [Patent Document 4] JP 2019-193571 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, energy costs can change due to various factors other than energy-saving measures. For example, in facilities such as factories, energy usage can change significantly depending on production conditions. Therefore, it is difficult to accurately evaluate the effectiveness of energy-saving measures by simply comparing energy costs before and after the implementation of the energy-saving measures, as in the above-mentioned technology.

[0005] The present disclosure describes an energy-saving effect display device, an energy-saving effect display method, and an energy-saving effect display program that are capable of accurately evaluating the effect of an energy-saving measure. [Means for solving the problem]

[0006] An energy-saving effect display device according to one embodiment of the present disclosure includes a calculation unit that calculates implementation-time index data relating to energy usage in a target facility when an energy-saving measure is being implemented and non-implementation-time index data relating to energy usage in the target facility when an energy-saving measure is not being implemented, based on performance data relating to the past operating conditions of the target facility, and a display control unit that causes a display unit to display improvement effect information indicating the relationship between the performance data and improvement effect data that indicates the improvement effect due to the implementation of the energy-saving measure, obtained based on the implementation-time index data and the non-implementation-time index data.

[0007] An energy saving effect display method according to one embodiment of the present disclosure includes determining, based on performance data relating to the past operating conditions of the target facility, implementation-time index data relating to energy usage in the target facility when an energy saving measure is being implemented and non-implementation-time index data relating to energy usage in the target facility when the energy saving measure is not being implemented, and displaying on a display unit improvement effect information indicating the relationship between the performance data and improvement effect data indicating the improvement effect due to the implementation of the energy saving measure, obtained based on the implementation-time index data and the non-implementation-time index data.

[0008] An energy saving effect display program according to one embodiment of the present disclosure causes a computer to obtain, based on performance data relating to the past operating conditions of the target facility, implementation-time index data relating to energy usage in the target facility when an energy saving measure is being implemented and non-implementation-time index data relating to energy usage in the target facility when the energy saving measure is not being implemented, and display on a display unit improvement effect information indicating the relationship between the performance data and improvement effect data indicating the improvement effect due to the implementation of the energy saving measure, obtained based on the implementation-time index data and the non-implementation-time index data.

[0009] In the above-mentioned energy-saving effect display device, energy-saving effect display method, and energy-saving effect display program, implementation index data and non-implementation index data relating to the energy usage status in a target facility are obtained based on performance data relating to the past operating status of the target facility. Then, improvement effect information indicating the relationship between the performance data and the improvement effect data obtained based on the implementation index data and non-implementation index data is displayed on the display unit. By referring to the improvement effect information, the user can grasp the presence or absence of a correlation between the performance data and the improvement effect data. This allows the user to grasp the impact that a change in the performance data has on the improvement effect data, and therefore allows the user to analyze in detail the factors behind the change in the improvement effect data. As a result, the user can accurately evaluate the effect of the energy-saving measures.

[0010] In some embodiments, the improvement effect data may include both non-implementation index data and implementation index data. In this case, the user can separately grasp the change in the non-implementation index data relative to the change in the performance data and the change in the implementation index data relative to the change in the performance data, and therefore can analyze the cause of the change in the improvement effect data in more detail. As a result, the user can more accurately evaluate the effect of the energy saving measures.

[0011] In some embodiments, the improvement effect data may be data indicating a difference between the non-implementation index data and the implementation index data. In this case, the user can easily grasp the presence or absence of a correlation between the performance data and the index data. As a result, the user can easily evaluate the effect of the energy saving measure.

[0012] In some embodiments, the improvement effect data may include first improvement effect data including both non-implementation index data and implementation index data, and second improvement effect data indicating a difference between the non-implementation index data and the implementation index data. The display control unit may cause the display unit to display improvement effect information indicating a relationship between the performance data and the first improvement effect data, and improvement effect information indicating a relationship between the performance data and the second improvement effect data. In this case, the user can use the two pieces of improvement effect information to analyze the cause of the change in the improvement effect data in more detail and accurately. As a result, the user can more accurately evaluate the effect of the energy-saving measures.

[0013] In some embodiments, the performance data may include first performance data and second performance data of a type different from the first performance data. The display control unit may display, on the display unit, improvement effect information indicating a relationship between the first performance data and the improvement effect data, and improvement effect information indicating a relationship between the second performance data and the improvement effect data. In this case, the user can grasp the presence or absence of a correlation between the improvement effect data and the multiple types of performance data. This allows the user to grasp in more detail the influence of a change in the performance data on a change in the improvement effect data. In other words, the user can distinguish between a type of performance data that affects a change in the improvement effect data and a type of performance data that does not affect a change in the improvement effect data, and can analyze the cause of a change in the improvement effect data in more detail. As a result, the user can more accurately evaluate the effect of the energy saving measures.

[0014] In some embodiments, the implementation time index data may include first implementation time index data and second implementation time index data of a different type from the first implementation time index data. The non-implementation time index data may include first non-implementation time index data of the same type as the first implementation time index data and second non-implementation time index data of the same type as the second implementation time index data. The display control unit may display, on the display unit, improvement effect information indicating a relationship between the performance data and improvement effect data obtained based on the first implementation time index data and the first non-implementation time index data, which indicates an improvement effect due to the implementation of the energy-saving measure, and improvement effect information indicating a relationship between the performance data and improvement effect data obtained based on the second implementation time index data and the second non-implementation time index data, which indicates an improvement effect due to the implementation of the energy-saving measure. In this case, the user can grasp the presence or absence of a correlation between the performance data and the multiple types of index data. This allows the user to grasp how the performance data affects the difference in the types of index data. In other words, the user can distinguish between the types of index data that affect the changes in the performance data and the types of index data that do not affect the changes in the performance data, and can analyze the causes of the changes in the improvement effect data in more detail. As a result, the user can more accurately evaluate the effects of the energy saving measures. Effect of the Invention

[0015] According to some aspects of the present disclosure, there are provided an energy-saving effect display device, an energy-saving effect display method, and an energy-saving effect display program that are capable of more accurately evaluating the effect of an energy-saving measure. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a configuration diagram of an energy-saving effect display device according to an embodiment. [Diagram 2] FIG. 2 is an example of a screen for setting extraction conditions. [Diagram 3] 3(a) and 3(b) are diagrams for explaining the estimation process of the energy index estimation unit. [Figure 4] Figure 4(a) is a graph showing the relationship between "production volume" and "energy cost." Figure 4(b) is a graph showing the relationship between "production volume" and "CO2 emissions." [Diagram 5] Fig. 5(a) is a graph showing the relationship between "temperature" and "energy cost". Fig. 5(b) is a graph showing the relationship between "temperature" and "CO2 emissions". [Figure 6] Fig. 6(a) is a graph showing the relationship between "production volume" and "energy cost reduction amount". Fig. 6(b) is a graph showing the relationship between "production volume" and "CO2 emission reduction amount". [Figure 7] Fig. 7(a) is a graph showing the relationship between "temperature" and "energy cost reduction amount". Fig. 7(b) is a graph showing the relationship between "temperature" and "CO2 emission reduction amount". [Figure 8] FIG. 8 is a diagram showing an example of a procedure for operating the energy-saving effect display device. [Figure 9] FIG. 9 is a diagram illustrating an example of a hardware configuration of the energy-saving effect display device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated descriptions will be omitted as appropriate.

[0018] [Energy saving effect display device] First, a configuration of an energy-saving effect display device 1 according to an embodiment will be described with reference to Fig. 1. The energy-saving effect display device 1 is used to evaluate the effectiveness of energy-saving measures for a target facility. The target facility is, for example, a factory or a plant. The energy-saving measures include, for example, systematic measures such as reducing the amount of received power or fuel consumption by optimizing the operation plan of energy equipment (gas turbines, boilers, storage batteries, etc.), as well as manual measures such as encouraging frequent shut-off of lighting and air conditioning.

[0019] 1, the energy-saving effect display device 1 includes, for example, an energy data input unit 21, an energy data storage processing unit 11, an energy database 12, an extraction condition designation unit 22, an energy data extraction unit 13, an energy-saving measure implementation time data extraction unit 14, an energy index calculation unit 15 (calculation unit), an energy index estimation unit 16 (calculation unit), a graph creation unit 17 (display control unit), a display unit 31, and a display switching unit 23 (display control unit). Of these, the energy data input unit 21, the extraction condition designation unit 22, and the display switching unit 23 may be configured as an input interface 20 that acquires information input by a user. The display unit 31 may be configured as an output interface 30 that outputs information handled by the energy-saving effect display device 1 to a user.

[0020] The energy data input unit 21 receives energy data D1 (performance data) related to the past operation status of the target facility. The information related to the operation status of the target facility includes, for example, information related to the consumption status of energy required for the operation of the target facility, such as the amount of power consumed, the amount of steam consumed, the amount of fuel consumed, the unit price of electricity, the unit price of steam, and the unit price of fuel, as well as information related to the production status, such as the production volume of products manufactured by the operation of the target facility, and information related to the weather conditions, such as the temperature, when the target facility was operated. Therefore, the energy data D1 includes various data, such as the amount of power consumed, the amount of steam consumed, the amount of fuel consumed, the unit price of electricity, the unit price of steam, the unit price of fuel, the temperature, humidity, and the production volume. The various data of the energy data D1 may affect the energy index D2. Hereinafter, any one of the various data of the energy data D1 may be referred to as "first energy data" (first performance data), and the other one, i.e., a type of data different from the "first energy data", may be referred to as "second energy data" (second performance data).

[0021] Date and time information indicating the date and time when the energy data D1 was acquired and history information indicating the implementation history of energy saving measures for the target facility when the energy data D1 was acquired are input to the energy data input unit 21 together with the energy data D1. That is, the energy data D1 is input to the energy data input unit 21 in a state where it is associated with the date and time information and the history information. The date and time information is information indicating the day or time period when the energy data D1 was acquired. The history information is information indicating whether or not energy saving measures were implemented for the target facility when the energy data D1 was acquired. The energy data D1 may be automatically input to the energy data input unit 21 from an external system or may be manually input to the energy data input unit 21.

[0022] The energy data storage processing unit 11 performs a process of saving (storing) the energy data D1 input to the energy data input unit 21 in the energy database 12. The energy database 12 stores the input energy data D1 together with date and time information and history information. Therefore, the energy data D1 is stored in the energy database 12 in a state where it is associated with the date and time information and the history information.

[0023] The extraction condition designation unit 22 acquires conditions (extraction conditions) for extracting energy data D1 to be finally displayed on the display unit 31 from the energy data D1 stored in the energy database 12. The designation of the extraction conditions is performed, for example, by a user. The extraction conditions may include designation of a period to be displayed on the display unit 31 and designation of the energy data D1 to be displayed on the display unit 31. The period to be displayed is designated, for example, in units of hours, days, weeks, months, or years, and is determined by designating the start and end points of the period. When the "period" is designated, the electricity unit price, steam unit price, fuel unit price, and temperature of the energy data D1 may each be expressed as an average value during the period. When the period is designated in months, the power consumption, steam consumption, fuel consumption, and production amount of the energy data D1 may each be expressed as an amount per month.

[0024] Screen example X shown in FIG. 2 is an example of a screen for specifying extraction conditions. As shown in FIG. 2, screen example X has items for specifying extraction conditions for each of "period" and "energy data". "Period" in screen example X has an item for specifying the start point of the "period" and an item for specifying the end point of the "period". In screen example X, any month selected by the user is input as the start point and end point of the "period". "Energy data" in screen example X has items for each type of energy data.

[0025] The "Energy Data" items in the example screen X include monthly power consumption [kWh / month], monthly production [kWh / month], average temperature [℃], average electricity cost [yen / kWh], and average fuel cost [yen / Nm 3 ] are shown. In addition to these, the "energy data" item of screen example X may show other types of energy data (for example, the amount of steam consumed per month). The items provided in the "energy data" of screen example X may be arbitrarily selected by user input. Furthermore, in addition to the designation of the "period" and the designation of the "energy data", screen example X may also be provided with the designation of "history information". In this case, the user may select whether or not to implement an energy measure in the "history information" item of screen example X. In such an embodiment, it is not necessary for the history information to be stored in the energy database 12.

[0026] For each "energy data" item in screen example X, a check box labeled "specify" or the like is provided in the input field. Each item is specified by checking or unchecking the check box. When a check box for a certain item is checked, the energy data D1 related to that item is subject to extraction. On the other hand, when a check box for a certain item is not checked, the energy data D1 related to that item is not subject to extraction. Therefore, the energy data D1 to be extracted can be switched depending on whether the check box is checked or unchecked. This makes it easy to switch between enabling and disabling extraction conditions.

[0027] In the screen example X shown in FIG. 2, the check box of the item indicating the average fuel unit price is not checked, so that the average fuel unit price of the energy data D1 is excluded from the extraction conditions. In this way, when the check box of a certain item is unchecked (i.e., when a certain item is excluded from the extraction conditions), the background color of the item (for example, the "value" column) may be changed. This allows the user to intuitively understand that the item is not used in the extraction conditions. Also, as shown in the screen example X, the lower limit value and the upper limit value of the energy data D1 in the specified period may be displayed for each item of the energy data D1. Also, as shown in the screen example X, the number of months that match the extraction conditions specified by the user (shown as "corresponding months" in FIG. 2) may be displayed. The user can adjust (for example, relax or strengthen) the extraction conditions based on this information. In this way, the screen for specifying the extraction conditions may have a function of assisting the user in specifying the extraction conditions by displaying information that the user can refer to.

[0028] Referring again to FIG. 1, the energy data extraction unit 13 extracts energy data D1 that matches the extraction condition specified by the extraction condition specification unit 22 from the energy data D1 stored in the energy database 12. The energy-saving measure implementation data extraction unit 14 further extracts energy data at the time of implementing the energy-saving measure (hereinafter referred to as "implementation-time energy data D11") from the energy data D1 extracted by the energy data extraction unit 13. Specifically, the energy-saving measure implementation data extraction unit 14 identifies the implementation-time energy data D11 from the energy data D1 extracted by the energy data extraction unit 13 by referring to history information associated with the energy data D1. Note that the energy data D1 includes energy data at the time of not implementing the energy-saving measure (hereinafter referred to as "non-implementation-time energy data D12") in addition to the implementation-time energy data D11.

[0029] The energy index calculation unit 15 calculates an energy index D2 (index data) for a period corresponding to the energy data D1 based on all the energy data D1 extracted by the energy data extraction unit 13 (i.e., the implementation-time energy data D11 and the non-implementation-time energy data D12). The energy index D2 is data related to the energy usage status in the target facility, and is used as a target for evaluating energy conservation measures. The energy index D2 is, for example, the amount of energy used, the amount of CO2 emitted, 2 For example, when the extraction condition designation unit 22 designates the "period" in months, the energy consumption, CO2 emissions, and other data are included. 2 The amount and energy cost may each be an amount per month. The energy usage may be the amount of energy required for one production unit (i.e., the amount of energy required to produce one product). Hereinafter, any one of the various data of the energy index D2 may be referred to as a "first energy index" (first index data), and the other one, i.e., a type of data different from the "first energy index", may be referred to as a "second energy index" (second index data).

[0030] The energy index calculation unit 15 calculates an energy index D2 when an energy saving measure is implemented (hereinafter referred to as "an actual value D21 of an energy index when implemented") based on the implementation-time energy data D11, which is an actual value. Also, the energy index calculation unit 15 calculates an energy index D2 when an energy saving measure is not implemented (hereinafter referred to as "an actual value D22 of an energy index when not implemented") based on the non-implementation energy data D12, which is an actual value.

[0031] On the other hand, the energy index estimation unit 16 obtains an estimated value D23 of the non-implementation energy index (non-implementation index data) in the case where the energy saving measure is not implemented, based on the implementation energy data D11. As a result, based on the same implementation energy data D11, an estimated value D23 of the non-implementation energy index, which is the estimation result of the energy index estimation unit 16, is obtained in addition to the actual value D21 of the implementation energy index, which is the calculation result of the energy index calculation unit 15. The energy index estimation unit 16, together with the energy index calculation unit 15, is configured as a calculation unit for calculating the energy index D2 based on the energy data D1.

[0032] Usually, the energy data D1 varies depending on the operation status of the target facility, so that the implementation-time energy data D11 does not match the non-implementation-time energy data D12. Therefore, for one energy data D1, only one of the implementation-time energy index actual value D21 and the non-implementation-time energy index actual value D22 exists. In response to this, the energy index estimation unit 16 estimates and calculates the non-implementation-time energy index estimated value D23 based on the implementation-time energy data D11 that is the basis for the calculation of the implementation-time energy index actual value D21. As a result, for one implementation-time energy data D11, both the implementation-time energy index actual value D21 and the non-implementation-time energy index estimated value D23 exist. This makes it possible to compare the implementation-time energy index actual value D21 and the non-implementation-time energy index estimated value D23 for the common implementation-time energy data D11.

[0033] The energy-saving effect display device 1 does not necessarily have to include the energy index estimation unit 16. For example, by setting an area in which the energy-saving measures are implemented and an area in which the energy-saving measures are not implemented in the target facility, the implementation-time energy data D11 and the non-implementation-time energy data D12 can be simultaneously acquired under a common operating condition. In this case, the energy index calculation unit 15 can obtain the implementation-time energy index actual value D21 and the non-implementation energy index actual value D22 based on the common energy data D1, so that both the implementation-time energy index actual value D21 and the non-implementation energy index actual value D22 are present for the common energy data D1. In this case, it becomes possible to compare the implementation-time energy index actual value D21 and the non-implementation energy index actual value D22 for the common implementation-time energy data D11.

[0034] Here, the estimation process of the energy index estimation unit 16 will be described with reference to Fig. 3(a) and Fig. 3(b). The energy index estimation unit 16 uses the non-execution energy data and the non-execution energy index as learning data, and constructs an estimation model M for calculating an estimated value D23 of the non-execution energy index based on the execution energy data D11 by machine learning. For example, supervised learning can be used as the machine learning. For example, supervised learning algorithms include neural networks including deep learning, decision trees, and support vector regression.

[0035] 3(a) conceptually illustrates the process during learning of the energy index estimation unit 16. As illustrated in FIG. 3(a), the energy index estimation unit 16 uses non-implementation energy data (e.g., power consumption, steam consumption, fuel consumption, electricity unit price, fuel unit price, temperature, production volume, etc.) as explanatory variables of teacher data, and calculates non-implementation energy indices (e.g., energy consumption, energy consumption required per production, CO2 emissions, etc.) as explanatory variables of teacher data. 2 An estimation model M is constructed by performing a learning process using the training data (e.g., amount, energy cost, etc.) as the objective variables.

[0036] FIG. 3(b) conceptually illustrates the process of the energy index estimation unit 16 during estimation. As shown in FIG. 3(b), the energy index estimation unit 16 estimates the estimated value D23 of the non-execution energy index as the objective variable from the explanatory variable based on the implementation energy data D11 using the constructed estimation model M. In this way, the energy index estimation unit 16 calculates the estimated value D23 of the unknown non-execution energy index based on the known implementation energy data D11. As a result, both the actual value D21 of the implementation energy index and the estimated value D23 of the non-execution energy index are obtained for the common energy data D1. Note that the timing of the machine learning in FIG. 3(a) is arbitrary as long as it is before the result is displayed on the display unit 31 (i.e., before step S3 in FIG. 7 described later). For example, the estimation model M may be incorporated in the design stage of the energy-saving effect display device 1, or learning and re-learning may be performed each time during the execution of the energy-saving effect display device 1 while using the latest data.

[0037] The graph creation unit 17 shown in FIG. 1 creates one or more graphs (improvement effect information) to be displayed on the display unit 31 based on the energy index D2 calculated by the energy index calculation unit 15 and the energy index estimation unit 16. The graph displayed on the display unit 31 shows the relationship between the energy data D1 and improvement effect data obtained based on the actual value D22 and the estimated value D23 of the non-implementation energy index and the actual value D21 of the implementation energy index. The improvement effect data is data showing the improvement effect of the energy usage situation due to the implementation of the energy saving measure. The improvement effect data may be, for example, first improvement effect data including both the actual value D22 and the estimated value D23 of the non-implementation energy index and the actual value D21 of the implementation energy index. In this case, the first improvement effect data may include only one of the actual value D22 and the estimated value D23 of the non-implementation energy index.

[0038] The graph creation unit 17 creates a first graph showing the relationship between, for example, the energy data D1, the actual value D22 and the estimated value D23 of the non-execution energy index, and the actual value D21 of the execution energy index. The graph creation unit 17 may create the first graph for each type of energy data D1 (i.e., for each of the first energy data and the second energy data). The graph creation unit 17 may create the first graph for each type of energy index D2 (i.e., for each of the first energy index and the second energy index).

[0039] The improvement effect data may be, for example, second improvement effect data indicating a difference between the estimated value D23 of the non-execution energy index and the actual value D21 of the execution energy index. In this case, the graph creation unit 17 creates a second graph indicating a relationship between the energy data D1 and the difference between the estimated value D23 of the non-execution energy index and the actual value D21 of the execution energy index. The graph creation unit 17 may create a second graph for each type of energy data D1 (i.e., for each of the first energy data and the second energy data). The graph creation unit 17 may create a second graph for each type of energy index D2 (i.e., for each of the first energy index and the second energy index). The second improvement effect data may indicate a ratio between the estimated value D23 of the non-execution energy index and the actual value D21 of the execution energy index.

[0040] The graph creation unit 17 may create only one of the first graph and the second graph, or may create both the first graph and the second graph. The graph creation unit 17 outputs the created graph to the display unit 31 and causes the display unit 31 to display the output graph. The graph creation unit 17, together with the display switching unit 23, is configured as a display control unit for controlling the contents displayed on the display unit 31. The graph creation unit 17 may create an approximation equation that approximates the relationship between the energy data D1 and the improvement effect data. As a method for creating the approximation equation, any method may be adopted, such as power approximation, polynomial approximation, exponential approximation, linear approximation, logarithmic approximation, and moving average. In addition, the degree of the polynomial approximation is not particularly limited. The graph creation unit 17 may cause the display unit 31 to display the approximation equation and an approximation line indicated by the approximation equation together with the created graph.

[0041] The display unit 31 displays one or more graphs created by the graph creation unit 17 on the screen. The display switching unit 23 acquires an instruction to switch and change the contents and format displayed on the display unit 31. The instruction to switch the display contents is given, for example, by a user. The display switching unit 23 instructs the display unit 31 to change the display contents based on the contents instructed by the user. The display switching unit 23 may have various functions for improving the visibility of the graph, such as a function to enlarge, reduce, and change the scale of the graph, or a function to switch between displaying and hiding the graph. Note that the energy-saving effect display device 1 does not need to include the display unit 31. In this case, the graph creation unit 17 may display the graph on a display unit such as an external display.

[0042] Next, examples of graphs displayed by the display unit 31 will be described in detail with reference to Figures 4 to 7. The display unit 31 displays, for example, graph G1 in Figure 4(a), graph G2 in Figure 4(b), graph G3 in Figure 5(a), graph G4 in Figure 5(b), graph G5 in Figure 6(a), graph G6 in Figure 6(b), graph G7 in Figure 7(a), and graph G8 in Figure 7(b). The graphs G1 to G4 correspond to the first graph described above, and the graphs G5 to G8 correspond to the second graph described above.

[0043] The graph G1 shows the relationship between the "production volume" which is an example of the first energy data, the actual value D22 and the estimated value D23 of the "energy cost" which is an example of the first energy index (first index data at the time of execution) at the time of non-execution, and the actual value D21 of the "energy cost" which is an example of the first energy index (first index data at the time of execution) at the time of execution. The graph G1 is represented by a matrix arrangement with the "production volume [pieces]" in the column direction (horizontal axis) and the "energy cost per month [yen]" in the vertical direction (vertical axis). The plot P11 shows the relationship between the "production volume" and the actual value D22 of the "energy cost". The plot P12 shows the relationship between the "production volume" and the estimated value D23 of the "energy cost". The plot P13 shows the relationship between the "production volume" and the actual value D21 of the "energy cost".

[0044] Graph G2 in Figure 4(b) shows the relationship between "production volume" and "emissions CO2," which is an example of the second energy indicator (second indicator data for non-implementation) when the energy consumption is not increased. 2 The actual value D22 and the estimated value D23 of the "CO2 emission amount" and the "CO2 emission amount" which is an example of the second energy indicator at the time of implementation (second implementation time indicator data) are shown. 2 The graph G2 shows the relationship between the actual value D21 of "production volume [units]" on the column direction (horizontal axis) and the actual value D22 of "monthly CO emissions." 2 The graphs G2 and G1 are represented by a matrix arrangement with the vertical axis representing the amount of CO2 emitted. The types of energy indicators D2 on the vertical axis are different between the graphs G2 and G1. The plot P21 is a graph showing the relationship between "production volume" and "CO2 emissions". 2 The plot P22 shows the relationship between "production volume" and the actual value D22 of "CO emissions." 2 The plot P23 shows the relationship between "production volume" and the estimated value D23 of "emissions CO 2 This shows the relationship with the actual value D21 of "amount".

[0045] Graph G3 in FIG. 5(a) shows the relationship between "temperature" which is an example of the second energy data, the actual value D22 and the estimated value D23 of "energy cost", and the actual value D21 of "energy cost". Graph G3 is represented by a matrix arrangement with "temperature [°C]" in the column direction (horizontal axis) and "energy cost per month [yen]" in the vertical direction (vertical axis). Graph G3 and graph G1 have different types of energy data D1 on the horizontal axis. Plot P31 shows the relationship between "temperature" and the actual value D22 of "energy cost". Plot P32 shows the relationship between "temperature" and the estimated value D23 of "energy cost". Plot P33 shows the relationship between "temperature" and the actual value D21 of "energy cost".

[0046] Graph G4 in Figure 5(b) shows the relationship between "temperature" and "emissions of CO 2 The actual value D22 and estimated value D23 of "CO emissions" 2 Graph G4 shows the relationship between "temperature [℃]" on the column direction (horizontal axis) and "monthly CO emissions" on the graph. 2 The graphs G4 and G2 are represented by a matrix arrangement with the vertical axis representing the amount of CO2 emitted. The graphs G4 and G2 have different types of energy data D1 on the horizontal axis. 2 The plot P42 shows the relationship between "temperature" and the actual value D22 of "CO2 emissions." 2 The plot P43 shows the relationship between "temperature" and the estimated value D23 of "CO2 emissions." 2 This shows the relationship with the actual value D21 of "amount".

[0047] In graph G5 of FIG. 6(a), plot P5 shows the relationship between "production volume" and "energy cost reduction." "Energy cost reduction" is the difference between the estimated value D23 of "energy cost" and the actual value D21 of "energy cost." Graph G5 is represented in a matrix arrangement with "production volume [pieces]" in the column direction (horizontal axis) and "monthly energy cost reduction [yen]" in the vertical direction (vertical axis). In graph G6 of FIG. 6(b), plot P6 shows the relationship between "production volume" and "CO2 emissions."2 This shows the relationship between the amount of CO2 emissions and the reduction in CO2 emissions. 2 The reduction amount is "CO emissions 2 The estimated value of "CO2 emissions" D23 and "CO2 emissions" 2 The graph G6 shows the difference between the actual value D21 of "production volume [units]" and the actual value D22 of "monthly CO emissions." 2 The graphs are represented by a matrix arrangement with the vertical axis representing the amount of reduction [t]. The graphs G6 and G5 have different types of energy indicators D2 on the vertical axis.

[0048] In graph G7 of FIG. 7(a), plot P7 shows the relationship between "temperature" and "energy cost reduction." Graph G7 is represented in a matrix arrangement with "temperature [°C]" in the column direction (horizontal axis) and "monthly energy cost reduction [yen]" in the vertical direction (vertical axis). Graph G7 and graph G5 differ in the type of energy data D1 on the horizontal axis. In graph G8 of FIG. 7(b), plot P8 shows the relationship between "temperature" and "CO2 emissions." 2 Graph G8 shows the relationship between "Temperature [℃]" on the horizontal axis and "Monthly CO2 Emissions Reduction" on the vertical axis. 2 The graphs G8 and G6 are represented by a matrix arrangement with the reduction amount "t" along the vertical direction (ordinate). The graphs G8 and G6 differ in the type of energy data D1 along the abscissa.

[0049] The display unit 31 may display the graphs G1 to G8 side by side on one screen at the same time, or may display the graphs G1 to G8 separately on a plurality of screens. When the display unit 31 displays the graphs G1 to G8 separately on a plurality of screens, the display unit 31 may display each of the graphs G1 to G8 on a separate screen. Alternatively, the display unit 31 may display any two or more of the graphs G1 to G8 on one screen, and may display the remaining data on a separate screen. For example, the display unit 31 may simultaneously display the graphs G1 and G2 on a first screen, simultaneously display the graphs G3 and G4 on a second screen, simultaneously display the graphs G5 and G6 on a third screen, and simultaneously display the graphs G7 and G8 on a fourth screen. In this way, when the display unit 31 displays the graphs G1 to G8 separately on a plurality of screens, the display unit 31 may be configured to switch between the screens by a button or the like.

[0050] The display unit 31 does not have to display all of the graphs G1 to G8 on the screen, and may display only some of the graphs G1 to G8 on the screen. For example, the display unit 31 may display only a graph showing the relationship between a specific type of energy data D1 and a specific type of energy index D2. For example, the display unit 31 may display only the graphs G1 and G5 showing the relationship between "energy cost" and "production volume", or may display only the graphs G1 and G5 showing the relationship between "CO2" and "production volume". 2 Only the graphs G2 and G6 showing the relationship between "emissions" and "production volume" may be displayed, or only the graphs G3 and G7 showing the relationship between "energy cost" and "temperature" may be displayed. 2 Alternatively, only the graphs G4 and G8 showing the relationship between "emission amount" and "temperature" may be displayed. Furthermore, the display unit 31 may display only either the graphs G1 to G4 or the graphs G4 to G8.

[0051] The display unit 31 may display graphs other than the graphs G1 to G8. For example, the display unit 31 may display a graph showing the relationship between "production volume" and "energy usage", which is another example of the energy indicator D2. Alternatively, the display unit 31 may display a graph showing the relationship between "fuel consumption" and "CO2 emission", which is another example of the energy data D1. 2A graph showing the relationship between "energy consumption amount," "amount of steam consumed," "amount of fuel consumed," "unit price of electricity," "unit price of steam," and "unit price of fuel" may be displayed. In this way, the types of energy data D1 and the types of energy indicators D2 shown in the graph are not particularly limited. In other words, the types of energy data D1 shown in the graph are not limited to "temperature" and "production amount," and may be other types such as "power consumption amount," "amount of steam consumed," "amount of fuel consumed," "unit price of electricity," "unit price of steam," and "unit price of fuel." Similarly, the types of energy indicators D2 shown in the graph are not limited to "energy cost" and "CO2 emission amount," and may be other types such as "power consumption amount," "amount of steam consumed," "amount of fuel consumed," "unit price of electricity," "unit price of steam," and "unit price of fuel." 2 The information is not limited to "amount," but may be of another type such as "energy consumption."

[0052] [How to display energy saving effects] Next, an energy-saving effect display method using the energy-saving effect display device 1 will be described with reference to Fig. 8. Fig. 8 shows an example of a procedure for using the energy-saving effect display device 1.

[0053] First, the user starts the energy-saving effect display device 1 (step S1). Next, the user sets extraction conditions for energy data D1 using the extraction condition designation unit 22 (step S2). Thereafter, the energy data D1 is extracted based on the set extraction conditions, and an energy index D2 is calculated based on the extracted energy data D1. Next, graphs G1 to G8 are created by the graph creation unit 17 based on the energy data D1 and the energy index D2, and the created graphs G1 to G8 are displayed on the display unit 31 (step S3). Thereafter, the user stops the energy-saving effect display device 1 (step S4).

[0054] 8, the energy-saving effect display device 1 is started and stopped every time the graphs G1 to G8 are displayed on the display unit 31, but once the energy-saving effect display device 1 is started, it does not have to be stopped unless there is a particular need. In this case, energy data D1 may be sequentially input to the energy-saving effect display device 1, and the graphs G1 to G8 created based on the energy data D1 may be redrawn on the display unit 31 at regular intervals (for example, every hour or every day). This type of configuration is particularly effective when the effects of energy-saving measures are displayed on a signage or large display.

[0055] [Hardware configuration] Next, the hardware configuration of the energy-saving effect display device 1 will be described with reference to FIG. 9. FIG. 9 is a diagram showing an example of the hardware configuration of the energy-saving effect display device 1. The energy-saving effect display device 1 includes one or more computers 100. The computer 100 has a CPU (Central Processing Unit) 101, a main memory unit 102, an auxiliary memory unit 103, a communication control unit 104, an input device 105, and an output device 106. The energy-saving effect display device 1 is configured by one or more computers 100 configured by these hardware and software such as programs. When the energy-saving effect display device 1 is configured by multiple computers 100, these computers 100 may be connected locally or may be connected via a communication network such as the Internet or an intranet. By this connection, one energy-saving effect display device 1 is logically constructed.

[0056] The CPU 101 executes an operating system, application programs, and the like. The main memory unit 102 is composed of a ROM (Read Only Memory) and a RAM (Random Access Memory). The auxiliary memory unit 103 is a storage medium composed of a hard disk, a flash memory, and the like. The auxiliary memory unit 103 generally stores a larger amount of data than the main memory unit 102. At least a part of each unit constituting the energy-saving effect display device 1 is realized by the auxiliary memory unit 103. The communication control unit 104 is composed of a network card or a wireless communication module. At least a part of each unit constituting the energy-saving effect display device 1 may be realized by the communication control unit 104. The input device 105 is composed of a keyboard, a mouse, a touch panel, and a microphone for voice input, and the like. For example, at least a part of the input interface 20 is realized by the input device 105. The output device 106 is composed of a display, a printer, and the like. At least a part of the output interface 30 is realized by the output device 106. For example, the output device 106 may display data output by the output interface 30 on a display, etc.

[0057] The auxiliary storage unit 103 stores the program 110 and data necessary for processing in advance. The program 110 causes the computer 100 to execute each functional element of the energy-saving effect display device 1. For example, the program 110 causes the computer 100 to execute the processing related to the above-mentioned steps S1 to S4. For example, the program 110 is read by the CPU 101 or the main storage unit 102, and operates at least one of the CPU 101, the main storage unit 102, the auxiliary storage unit 103, the communication control unit 104, the input device 105, and the output device 106. For example, the program 110 reads and writes data in the main storage unit 102 and the auxiliary storage unit 103. The program 110 may be provided after being recorded on a tangible recording medium such as a CD-ROM, a DVD-ROM, or a semiconductor memory. The program 110 may be provided via a communication network as a data signal.

[0058] [Effects] The effects of the energy-saving effect display device 1, the energy-saving effect display method, and the energy-saving effect display program described above will be described. In this embodiment, graphs G1 to G8 are displayed on the display unit 31. A user can evaluate the effect of an energy-saving measure by referring to the displayed graphs G1 to G8. Referring to the graph G1 in FIG. 4(a), it can be seen that there is a strong correlation between "production volume" and "energy cost". Furthermore, in the graph G1, the slope of the straight line L12 connecting the multiple plots P13 is smaller than the slope of the straight line L11 connecting the multiple plots P11 and P12. These slopes correspond to the energy cost required for one production unit.

[0059] In this way, the difference between lines L11 and L12 becomes larger as the "production volume" increases, which shows that the effect of energy-saving measures on "energy costs" becomes greater in proportion to the "production volume". Similar results are obtained in graph G5 shown in FIG. 6(a). In graph G5, the "energy cost reduction amount" becomes greater as the "production volume" increases, which shows that the effect of energy-saving measures on "energy costs" becomes greater in proportion to the "production volume". From these results, the user can understand that the effect of energy-saving measures on "energy costs" changes due to changes in the "production volume", specifically, that the effect of energy-saving measures on "energy costs" becomes greater in proportion to the "production volume".

[0060] As shown in graph G2 in Figure 4(b), "CO emissions 2 It can be seen that there is a correlation between the "amount of CO emissions" and the "production volume." Specifically, the "amount of CO emissions" is proportional to the "production volume." 2 From this result, it can be seen that the effect of energy conservation measures on "CO2 emissions" is large. 2The effect of energy conservation measures on "CO emissions" changes due to changes in "production volume." Specifically, the effect of energy conservation measures on "CO emissions" changes in proportion to "production volume." 2 This makes it possible to understand that the effect of energy conservation measures on "amount of energy consumed" will be greater.

[0061] As shown in graph G8 in Figure 7(b), "CO emissions 2 It can be seen that there is a negative correlation between "CO emission" and "temperature." Specifically, the lower the "temperature," the lower the "CO emission." 2 The lower the "temperature," the greater the "reduction in CO emissions." 2 It can be seen that the effect of energy conservation measures on "CO2 emissions" is large. For example, if a user practices energy conservation by frequently turning off gas stoves in winter, the effect of the energy conservation measures is thought to be reflected in graph G8. From this result, it can be seen that the user is 2 The effect of energy conservation measures on the amount of CO emissions changes due to changes in temperature. Specifically, the lower the temperature, the lower the amount of CO emissions. 2 On the other hand, as shown in graph G3 in Fig. 5(a) and graph G7 in Fig. 7(a), no correlation can be seen between "temperature" and "energy cost."

[0062] In this way, the user can understand whether there is a correlation between the energy data D1 and the energy index D2 by referring to the graphs G1 to G8 displayed on the display unit 31. This allows the user to understand how the energy data D1 (i.e., factors other than the energy-saving measures) affect the change in the energy index D2, and therefore allows the user to analyze in detail the factors behind the change in the energy index D2. For example, from the results of the graph G1, the user can understand that the effect of the energy-saving measures on the "energy cost" increases in proportion to the "production volume". As a result, the user can accurately evaluate the effect of the energy-saving measures. This allows the user to thoroughly consider the continued implementation of the energy-saving measures and the effect of investing in the energy-saving measures based on the evaluation results of the energy-saving measures.

[0063] In this embodiment, the graphs G1 to G4 include both the actual value D22 and the estimated value D23 of the non-implementation energy index and the actual value D21 of the implementation energy index. In this case, the user can separately grasp the change in the actual value D22 and the estimated value D23 of the non-implementation energy index relative to the change in the energy data D1 and the change in the actual value D21 of the implementation energy index relative to the change in the energy data D1, so that the user can analyze the cause of the change in the energy index D2 in more detail. As a result, the user can more accurately evaluate the effect of the energy saving measures.

[0064] In this embodiment, the graphs G5 to G8 show the difference between the estimated value D23 of the non-implementation energy index and the actual value D21 of the implementation energy index. In this case, the user can easily understand the presence or absence of a correlation between the energy data D1 and the energy index D2. As a result, the user can easily evaluate the effect of the energy saving measures.

[0065] In this embodiment, the graph creation unit 17 causes the display unit 31 to display graphs G1 to G4 showing the relationship between the energy data D1, the actual value D22 and the estimated value D23 of the non-implementation energy index, and the actual value D21 of the implementation energy index, and graphs G5 to G8 showing the relationship between the energy data D1 and the difference between the estimated value D23 of the non-implementation energy index and the actual value D21 of the implementation energy index. In this case, the user can analyze the cause of the change in the energy index D2 in more detail and more accurately. As a result, the user can more accurately evaluate the effect of the energy saving measures.

[0066] In this embodiment, the graphs G1 to G8 include multiple types of energy data D1. In this case, the user can understand whether there is a correlation between the multiple types of energy data D1 and the energy index D2. This allows the user to understand in more detail how factors other than the energy saving measures affect the change in the energy index D2. In other words, the user can distinguish between the type of energy data D1 that affects the change in the energy index D2 and the type of energy data D1 that does not affect the change in the energy index D2, and can analyze the factors of the change in the energy index D2 in more detail. As a result, the user can more accurately evaluate the effect of the energy saving measures.

[0067] In this embodiment, the graphs G1 to G8 include multiple types of energy indicators D2. In this case, the user can understand whether there is a correlation between the multiple types of energy indicators D2 and the energy data D1. This allows the user to understand how factors other than the energy-saving measures affect the different types of energy indicators D2. In other words, the user can distinguish between the types of energy indicators D2 that affect the change in the energy data D1 and the types of energy indicators D2 that do not affect the change in the energy data D1, and can analyze the factors of the change in the energy indicators D2 in more detail. As a result, the user can more accurately evaluate the effect of the energy-saving measures.

[0068] [Variations] As described above, the present disclosure is not necessarily limited to the above-described embodiment, and various modifications are possible without departing from the gist of the present disclosure.

[0069] For example, in the above embodiment, the display unit displays the graphs G1 to G8, but the improvement effect information displayed on the display unit is not limited to the graph format. For example, the improvement effect information may be displayed in other data formats such as a table format, or may be displayed as text including numerical values ​​related to the improvement effect. The type of energy data is not limited to the above example. For example, water may be considered as energy, and the energy data may include "water charges" and "water usage." In the above embodiment, the display unit may highlight and display only plots corresponding to the current month (or day, week, hour, or year, depending on the embodiment) in each of the graphs G1 to G8 by coloring, etc. This makes it easier to understand the effect of energy saving in the most recent operation. In addition, the display unit may display information on the uncertainty of the estimated value of the non-implementation energy index (for example, a width of ±3σ (standard deviation)) in each of the graphs G1 to G8.

[0070] In the above-described embodiment, the target facility has been mainly described as a factory, but the target facility may be a general commercial facility, a hospital facility, an accommodation facility, or a transportation facility. If the target facility is a commercial facility, the energy data may include floor area x business hours, and total working hours of employees. If the target facility is a hospital facility or an accommodation facility, the energy data may include the number of hospitalized patients and the number of overnight guests. If the target facility is a transportation facility, the energy data may include fuel consumption, transportation volume (e.g., weight of goods), transportation distance, and transportation time.

[0071] In the above-described embodiment, the energy-saving measures are not necessarily limited to organizational operation rules. For example, the energy-saving measures may be the introduction of a specific energy device or the modification of a control program. For example, when a charge / discharge program for a storage battery is modified, the energy-saving effect display device, the energy-saving effect display method, and the energy-saving effect display program according to the present disclosure can be used to evaluate the effect of the modification on the energy index of the entire factory, such as the operating cost.

[0072] Many energy conservation measures are centered on reducing costs. For example, in Patent Document 3, only costs are evaluated. However, in recent years, from the perspective of preventing global warming, companies have been required to reduce CO emissions. 2 In response to this, the present embodiment aims to reduce not only the cost but also the amount of CO emissions. 2 Since it is possible to multilaterally evaluate the improvement effect of energy-saving measures in terms of the amount of energy consumed, etc., this contributes to Goal 13 of the Sustainable Development Goals (SDGs) led by the United Nations, "Take urgent action to mitigate climate change and its impacts." Therefore, from this point of view, the energy-saving effect display device 1, the energy-saving effect display method, and the energy-saving effect display program according to the present embodiment are superior to those of Patent Document 3 and the like. [Explanation of symbols]

[0073] 1. Energy saving effect display device 15 Energy Index Calculation Unit (Calculation Unit) 16 Energy index estimation unit (calculation unit) 17 Graph creation section (display control section) 23 Display switching unit (display control unit) 31 Display section 100 Computers D1 Energy data (actual data) D2 Energy Index (Index Data) D21 Energy indicator performance at the time of implementation (indicator data at the time of implementation) D22 Actual values ​​of energy indicators when not implemented (non-implementation indicator data) D23 Non-implementation energy indicators estimates (non-implementation indicator data) G1~G8 graphs (improvement effect information)

Claims

1. A calculation unit that calculates implementation index data relating to an energy usage situation in the target facility when an energy saving measure is implemented and non-implementation index data relating to an energy usage situation in the target facility when the energy saving measure is not implemented, based on performance data relating to a past operating situation of the target facility; a display control unit that displays on a display unit improvement effect information indicating a relationship between the performance data and improvement effect data that indicates an improvement effect due to the implementation of the energy-saving measure, the improvement effect data being obtained based on the implementation index data and the non-implementation index data; Equipped with The performance indicator data includes first performance indicator data and second performance indicator data of a different type from the first performance indicator data, The non-execution time index data includes first non-execution time index data of the same type as the first execution time index data, and second non-execution time index data of the same type as the second execution time index data, The display control unit is improvement effect information indicating a relationship between the performance data and improvement effect data indicating an improvement effect due to the implementation of the energy saving measure, the improvement effect data being obtained based on the first implementation-time index data and the first non-implementation-time index data; An energy saving effect display device that displays on the display unit improvement effect information indicating the relationship between the actual data and improvement effect data indicating the improvement effect due to the implementation of the energy saving measure, the improvement effect data being obtained based on the second implementation time index data and the second non-implementation time index data.

2. The energy-saving effect display device according to claim 1 , wherein the improvement effect data includes both the non-implementation index data and the implementation index data.

3. The energy-saving effect display device according to claim 1 , wherein the improvement effect data is data indicating a difference between the non-implementation index data and the implementation index data.

4. the improvement effect data includes first improvement effect data including both the non-implementation index data and the implementation index data, and second improvement effect data indicating a difference between the non-implementation index data and the implementation index data, The display control unit is improvement effect information indicating a relationship between the performance data and the first improvement effect data; The energy-saving effect display device according to claim 1 , further comprising: improvement effect information indicating a relationship between the performance data and the second improvement effect data, the improvement effect information being displayed on the display unit.

5. The performance data includes first performance data and second performance data of a different type from the first performance data, The display control unit is improvement effect information indicating a relationship between the first performance data and the improvement effect data; The energy-saving effect display device according to claim 1 , further comprising: displaying, on the display unit, improvement effect information indicating a relationship between the second performance data and the improvement effect data.

6. Obtaining implementation index data relating to the energy usage status in the target facility when the energy saving measure is implemented and non-implementation index data relating to the energy usage status in the target facility when the energy saving measure is not implemented based on performance data relating to the past operating status of the target facility; displaying, on a display unit, improvement effect information indicating a relationship between the performance data and improvement effect data indicating an improvement effect due to the implementation of the energy-saving measure, the improvement effect data being obtained based on the implementation index data and the non-implementation index data; Including, The performance indicator data includes first performance indicator data and second performance indicator data of a different type from the first performance indicator data, The non-execution time index data includes first non-execution time index data of the same type as the first execution time index data, and second non-execution time index data of the same type as the second execution time index data, In displaying the improvement effect information on the display unit, improvement effect information indicating a relationship between the performance data and improvement effect data indicating an improvement effect due to the implementation of the energy saving measure, the improvement effect data being obtained based on the first implementation-time index data and the first non-implementation-time index data; An energy saving effect display method, which displays on the display unit improvement effect information indicating the relationship between the actual data and improvement effect data indicating the improvement effect due to the implementation of the energy saving measure, the improvement effect data being obtained based on the second implementation time index data and the second non-implementation time index data.

7. Obtaining implementation index data relating to the energy usage status in the target facility when the energy saving measure is implemented and non-implementation index data relating to the energy usage status in the target facility when the energy saving measure is not implemented based on performance data relating to the past operating status of the target facility; displaying, on a display unit, improvement effect information indicating a relationship between the performance data and improvement effect data indicating an improvement effect due to the implementation of the energy-saving measure, the improvement effect data being obtained based on the implementation index data and the non-implementation index data; Run the following on your computer: The performance indicator data includes first performance indicator data and second performance indicator data of a different type from the first performance indicator data, The non-execution time index data includes first non-execution time index data of the same type as the first execution time index data, and second non-execution time index data of the same type as the second execution time index data, In displaying the improvement effect information on the display unit, improvement effect information indicating a relationship between the performance data and improvement effect data indicating an improvement effect due to the implementation of the energy saving measure, the improvement effect data being obtained based on the first implementation-time index data and the first non-implementation-time index data; An energy-saving effect display program that causes the display unit to display improvement effect information indicating the relationship between the performance data and improvement effect data indicating the improvement effect due to the implementation of the energy-saving measure, the improvement effect data being obtained based on the second implementation-time index data and the second non-implementation-time index data.

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