JP5139394B2 - Energy management system - Google Patents

Description

  The present invention relates to an energy management system, and more particularly, to an energy management system that displays a screen for confirming the status of energy consumption, the implementation status of energy saving measures, and the like.

  In the energy management work in buildings such as buildings, it is necessary to manage the amount of energy used in the buildings owned by companies and the entire buildings used. Specifically, companies that own or use multiple buildings, manage energy usage targets and performance across multiple buildings, reduce energy usage, and regularly report on these. is necessary. Penalties will also be imposed if the specified reduction in energy consumption cannot be achieved.

  Against this backdrop, energy-related data used in multiple customer buildings is acquired, managed, aggregated, and statistical data is stored, providing information to achieve the target of energy-saving effect from statistical data, and effective energy saving There has been an energy management system that implements countermeasures (see, for example, Patent Document 1).

JP 2008-102709 A

  In the technique disclosed in Patent Document 1, it is proposed to calculate an evaluation value for achieving the target of the energy saving effect, and to perform an energy saving measure that can be implemented as a system when the target is not achieved. However, it has been difficult for customers who own buildings and the like to plan drastic energy saving measures including planning to reduce energy consumption over a long period of time and replacing equipment.

  An object of the present invention is to provide an energy management system that can provide customers with the current energy consumption and degree of achievement of energy saving targets, and can support planning including energy saving measures for achieving energy saving goals. There is to do.

  In order to achieve the above object, the energy management system according to the present invention is based on the information on the energy consumption of the standard year and the energy reduction amount applied every year. A target value calculation unit that calculates a target value for usage and updates the calculated target value based on information related to energy reduction for a specific year; The energy use amount reduced by the energy saving measure applied to the current year is applied to calculate the predicted energy use for the next fiscal year, and the energy use amount reduced by the energy saving measure applied in the specific year is calculated. Calculate the energy usage forecast value for the specific year by applying it to the energy usage information of the previous year of the year By using the energy consumption predicted value calculation unit for calculating the predicted value of energy usage for each year after the reference year, the target value for the calculated energy usage for each year and the energy usage for each year And a display information generation unit that generates display information for displaying the predicted value of the quantity.

  Here, the energy usage predicted value calculation unit updates the predicted value of the energy usage amount in each year after the reference year based on the information input on the screen displayed based on the display information, The display information generation unit preferably generates the display information again based on the updated information.

  Further, the display information generation unit can display the contents of energy saving measures applied in a specific year for each year, and can select the contents of energy saving measures to be applied in the specific year on the displayed screen. The display information is generated as described above, and the predicted energy use value calculation unit calculates the energy for each year after the reference year based on the energy usage reduced by the energy saving measure selected on the displayed screen. It is preferable to update the predicted usage amount.

  In addition, the target value calculation unit updates the target value of the energy usage amount in each year after the reference year based on the information input on the screen displayed based on the display information, and the display information The generation unit preferably generates the display information again based on the updated information.

  Further, the display information generation unit displays the information on the energy reduction amount applied every year, and displays the information on the energy reduction amount applied every year on the displayed screen. The target value calculation unit generates information, and the target value calculation unit is configured to target energy usage for each fiscal year after the reference fiscal year based on the information on the energy reduction amount applied each fiscal year input on the displayed screen. It is preferable to update the value.

  In addition, the display information generation unit displays the information on the energy reduction amount for the specific year, and displays the display information so that the information on the energy reduction amount for the specific year can be input on the displayed screen. The target value calculation unit generates and updates the target value of the energy usage amount in each year after the reference year based on the information on the energy reduction amount for the specific year input on the displayed screen. It is preferable to do.

  The display information generation unit may generate the display information so as to display the calculated target value of the energy usage for each year and the predicted value of the energy usage for each year in a graph for each year. preferable.

  Moreover, it is preferable that the said display information production | generation part displays the graph of the year where the predicted value of the said energy usage is higher than the target value of the said energy usage in the aspect different from the graph of another year.

  Moreover, it is preferable that the information regarding the energy reduction amount applied every year is input via the network from an information processing terminal different from the information processing terminal including the target value calculation unit.

Further, the energy conservation measures a has identifying information and the energy use is reduced by the energy-saving measures and further energy saving measure information storage unit stored in association, the energy consumption for predicted value calculation unit acquires It is preferable to acquire information on the amount of energy used reduced by the energy saving measure based on the information for identifying the energy saving measure.

Further, information for identifying the energy-saving measures is preferably input via a network from an information processing terminal different from the information processing terminal that includes the energy used for predicted value calculation unit.

  According to the present invention, an energy management system capable of providing a customer with the current energy consumption and the degree of achievement of an energy saving target and supporting planning including an energy saving measure for achieving the energy saving target is provided. It becomes possible to do.

It is a figure which shows the energy management system which concerns on embodiment of this invention. It is a figure which shows the example of a display of the energy-saving plan screen which concerns on embodiment of this invention. It is a figure which shows the example of a display of the energy-saving plan screen which concerns on embodiment of this invention. It is a figure which shows the example of a display of the energy-saving plan screen which concerns on embodiment of this invention. It is a figure which shows the example of a display of the energy-saving plan screen which concerns on embodiment of this invention. It is a figure which shows the example of the information which the information processing terminal which concerns on embodiment of this invention transmits to an electric power integration management center. It is a flowchart which shows the calculation operation | movement of the target value which concerns on embodiment of this invention. It is a flowchart which shows the calculation operation | movement of the predicted value which concerns on embodiment of this invention. It is a flowchart which shows the judgment operation | movement of the highlight display presence / absence based on embodiment of this invention. It is a figure which shows the hardware constitutions of the information processing apparatus which concerns on embodiment of this invention.

Hereinafter, an embodiment of an energy management system according to the present invention will be described with reference to the drawings.
FIG. 1 is a system configuration diagram showing an energy management system according to an embodiment of the present invention. Moreover, FIGS. 2-5 is a figure which shows an example of the energy-saving plan screen provided to a customer.

  First, a system configuration according to the present embodiment will be described. As shown in FIG. 1, the energy management system according to the present embodiment is a system that manages energy for a plurality of customer buildings 4, and the power accumulation management center 1 is connected to the customer building 4 via the general line 2 or the Internet 3. Connected to each device included in the. In such a configuration, the power integration management center 1 analyzes data on energy consumption acquired from each customer building 4 via a general line, and transmits the analysis result to the customer building 4 via the Internet 3.

  As shown in FIG. 1, each customer building 4 is provided with a plurality of energy consumption measuring devices such as a wattmeter 6 and a gas meter 8, and each measurement result is input to the pulse integrating device 5 as a pulse signal. . The pulse integrating device 5 integrates the pulse signals input from the respective energy consumption measuring machines and generates pulse data. The pulse data generated in this way is acquired by the power integration management center 1. Further, as shown in FIG. 1, each customer building 4 is provided with an information processing terminal 7 for information processing and display. The information processing terminal 7 is configured by a general PC (Personal Computer) or the like, and displays an analysis result transmitted from the power integration management center 1 via the Internet 3. In this embodiment, the case where the information processing terminal 7 is provided in each customer building 4 is taken as an example, but a PC or the like installed in another building can also be used as the information processing terminal 7. is there.

  As shown in FIG. 1, the power integration management center 1 includes a control device 11, a communication interface 12, a collection device 13, a schedule management device 14, a calculation device 15, a screen creation device 16, and a storage device 17. The control device 11 controls the overall operation in the power integration management center 1. The communication interface 12 communicates with an external device via the general line 2 and the Internet 3. In this system, the communication interface 12 is connected to the pulse integrating device 5 provided in each customer building 4 via the general line 2. As described above, the pulse integrating device 5 is connected to a plurality of power meters 6 and gas meters 8, and the communication interface 12 acquires the power consumption in each customer building 4 via the pulse integrating device 5.

  The collection device 13 collects energy measurement values in each customer building 4. The schedule management device 14 manages the collection timing of the energy measurement values by the collection device 13. The computing device 15 computes a target value and the like for the current fiscal year and after based on the collected energy measurement values. The screen creation device 16 generates a screen for displaying information notified to the customer as a result of processing by the power integration management center 1.

  The storage device 17 is a storage medium for storing various data such as collected data. As shown in FIG. 1, the customer table, the building table, the year data table, the reference year table, the annual reduction target value table, the current year reduction rate A target value table, an energy saving measure table, an energy saving measure list table, and a predicted value display presence / absence table are stored.

  Here, the customer table is information stored in advance in association with a customer name and a customer number. The building table is information stored in advance in association with a customer number, a building name, and a building number. The year data table is information stored in association with a building number, a year, and an energy usage amount of the year. The energy measurement value acquired from the customer building 4 by the collecting device 13 described above is stored in this screw data table as the amount of energy used for each year. The reference year table is information stored in association with a building number and a reference year set for the building. The annual reduction rate target value table is information stored in association with a building number and an annual reduction rate target value.

  The current year reduction rate target value table is information stored in association with a building number, a year, and a current year reduction rate target value. The energy saving measure table is information stored in association with a building number, a year, and an energy saving measure number in the year. The energy saving measure list table is information stored in advance in association with an energy saving measure name, an energy saving measure number, and an energy consumption reduction rate due to the energy saving measure. That is, since the energy saving measure list table is stored, the storage device 17 functions as an energy saving measure information storage unit. The predicted value display presence / absence table is information stored in association with a building number and a flag indicating whether or not the predicted value is displayed for the building.

  In such a system configuration, the information processing terminal 7 issues a screen request for an energy saving plan screen to the power accumulation management center 1 via the Internet 3, and the power accumulation management center 1 is exemplified in FIGS. 2 to 5. A simple energy saving plan screen is provided to the information processing terminal 7. Here, FIG. 6 shows an example of information transmitted to the power integration management center 1 when the information processing terminal 7 makes a screen request for the energy saving design screen. As shown in FIG. 6, when the information processing terminal 7 makes a screen request, the customer name, the building name, the base year, the annual reduction rate target, the current year reduction rate target, the necessity of displaying the predicted value, the applied measure and the measures Send information about the year of application. Note that there may be a plurality of information on applied measures.

  Based on the information received by the communication interface 12, the computing device 15 of the power accumulation management center 1 determines the energy usage target value for each year from the reference year to the last display year, and the energy usage for each year from the reference year to last year. Calculate the energy usage prediction value from the current year to the last display year, and the necessity of graph emphasis display for each year. In the example of FIGS. 2 to 5, the last display year is 10 years after the reference year.

  The screen creation device 16 of the power integration management center 1 generates display information of the energy saving plan screen to be provided to the customer based on the information received by the communication interface 12 and the calculation result calculated by the calculation device 15. Then, the communication interface 12 transmits the information generated by the screen creation device 16 to the information processing terminal 7 that is the screen request source via the Internet 3.

  Note that the display information generated by the screen creation device 16 may be generated by the information processing terminal 7. In this case, the information processing terminal 7 needs to have a function similar to the screen generation function of the screen creation device 16. When the information processing terminal 7 generates display information of the energy saving plan screen, the communication interface 12 transmits a calculation result by the calculation device 15 to the information processing terminal 7. And the said function in the information processing terminal 7 produces | generates the display information of an energy saving plan screen based on the received calculation result.

  Next, processing in the power integration management center 1 after receiving the information shown in FIG. 6 will be described. When the communication interface 12 receives the information shown in FIG. 6, the control device 11 searches the customer table in the storage device 17 for a record that matches the received customer name, and acquires the customer number from the obtained record. Then, the control device 11 searches the building table for a record that matches the customer number and the building name, and acquires the building number from the obtained record. When the building number is acquired, the control device 11 searches the energy saving measure list table for a record that matches the received applied measure, and acquires the energy saving measure number and the energy consumption reduction rate from the obtained record.

  In addition, the control device 11 sets the received reference year, annual reduction rate target, current year reduction rate target, prediction value display necessity and the acquired energy saving measure number and application year to the reference year table and annual reduction rate target value table, respectively. The current year reduction rate target value table, predicted value display presence / absence table, and energy saving measure table are stored. After storing the information in this manner, the control device 11 controls the calculation device 15 to calculate the energy usage target value for each year from the reference year to the last display year.

  FIG. 7 is a flowchart showing the calculation process of the target value displayed on the energy saving plan screen, and shows the process executed by the calculation device 15 according to the control of the control device 11. As shown in FIG. 7, first, the arithmetic unit 15 acquires a reference year used for graph display from a reference year table stored in the storage device 17 (S701). And the arithmetic unit 15 acquires the information of the energy usage amount of a reference | standard year from the time data table memorize | stored in the memory | storage device 17 (S702).

Next, the computing device 15 calculates a basic target value for each year based on the annual reduction rate target acquired from the annual reduction rate target value table (S703). In S703, the arithmetic unit 15 calculates the basic target value of the reference year + N years using the following equation (1).

  When the basic target value of the reference year + N years is calculated, the calculation device 15 determines whether or not the current year reduction rate target value is stored in the current year reduction rate target value table of the storage device 17 (S704). As a result of the determination in S704, if the current year reduction rate target value is not stored (S704 / NO), the arithmetic unit 15 sets the basic target value for each year calculated in S703 as the energy usage target value and ends the process. .

If the current year reduction rate target value is stored as a result of the determination in S704 (S704 / YES), the computing device 15 calculates the energy usage target value from the basic target value and current year reduction rate target calculated in S703 ( S705). In S705, the arithmetic unit 15 uses the following equation (2), year of energy consumption target value (hereinafter, referred to as E ₀₎ to calculate the, using the following equation (3), those Calculate energy usage target values for the year following the year set as the year. In the following formulas (2) and (3), the current year is set as the base year + n years, and the following year and thereafter, by defining n <N, the base year + N years as in the above formula (1). Eyes.

式（２）、（３）により、当年度及び翌年度以降のエネルギー使用量目標値を算出すると、前年度以前のエネルギー使用量目標値としては式（１）によって算出した基本目標値を適用し、処理を終了する。このような処理により、エネルギー使用量目標値の演算が完了する。このように、演算装置１５は、目標値算出部として機能する。

When the energy usage target values for the current year and the following year are calculated using formulas (2) and (3), the basic target value calculated by formula (1) is applied as the energy usage target value for the previous year and earlier. The process is terminated. By such processing, calculation of the energy usage target value is completed. Thus, the arithmetic device 15 functions as a target value calculation unit.

  When the calculation of the energy usage target value is completed, the control device 11 next controls the calculation device 15 to calculate the predicted energy usage amount for the current fiscal year and thereafter. FIG. 8 is a flowchart showing the calculation process of the predicted value displayed on the energy saving plan screen, and shows the process executed by the calculation device 15 according to the control of the control device 11. As shown in FIG. 8, first, the computing device 15 refers to the energy saving measure table in the storage device 17 and determines whether there is an energy saving measure to be applied in the calculation target year (S801).

As a result of the determination in S801, when there is an energy saving measure to be applied in the calculation target year (S801 / YES), the arithmetic unit 15 acquires the energy reduction rate of the energy saving measure from the energy saving measure list table, and calculates the energy reduction rate. By using the following equation (4), an energy usage prediction value is calculated (S802).

  “Energy usage amount in the previous year” in the equation (4) is used when the energy usage amount is already stored in the year data table for the year corresponding to the “previous year”. On the other hand, when the energy usage is not stored in the year data table for the year corresponding to the “previous year”, the predicted value of the energy usage for that year is used.

  As a result of the determination in S801, when there is no energy saving measure to be applied in the calculation target year (S801 / NO), the “previous year energy consumption” included in the equation (4) is directly used as the calculation target energy consumption prediction. A value is set (S803). Then, when the process of either S802 or S803 is completed, the process ends. By such processing, the predicted energy usage amount for each fiscal year is calculated. Thus, the arithmetic device 15 also functions as an energy usage predicted value calculation unit.

  When the calculation of the energy usage predicted value is completed, the calculation device 15 next determines whether or not the graph highlight display of the energy usage predicted value after the current year is necessary. FIG. 9 is a flowchart showing processing when the arithmetic device 15 determines whether or not graph emphasis display is necessary. As illustrated in FIG. 9, the arithmetic device 15 first compares the energy usage target value calculated by the process of FIG. 7 with the energy usage predicted value calculated by the process of FIG. 8 (S901). If the predicted energy usage amount does not exceed the energy usage target value (S901 / NO), the highlighting determination is not performed, and the process ends. On the other hand, as a result of the comparison in S901, when the predicted energy usage amount is larger (S901 / YES), the arithmetic unit 15 sets the graph for the year to be highlighted (S902).

  Information for generating an energy saving plan screen is prepared by such processing of the control device 11 and the calculation device 15. Next, the energy saving plan screen according to the present embodiment will be described. The screen creation device 16 of the power accumulation management center 1 includes the information received from the information processing terminal 7 by the communication interface 12 and stored in the storage device 17, the information calculated by the processes of FIGS. Create an energy-saving plan screen based on the amount of energy used up to the previous year stored in the table. That is, the screen creation device 16 functions as a display information generation unit.

  As shown in FIG. 2, the energy saving plan screen includes graphs 61 a to 61 k that graph energy usage target values for each year, graph 62 a that graphs energy usage for each year, and pull-down 63 for selecting a building to be displayed in a graph. , A pull-down 64 for selecting a reference year, a text box 65 for inputting an annual reduction target, a text box 66 for inputting a current year reduction rate target value, a check box 67 for selecting whether or not a predicted value is required, a button 68 for instructing a graph display, It includes a legend 69 for displaying the contents shown in the graph, and pull-downs 610a to 610k for selecting an energy saving measure to be applied in each year.

  Figure 2 shows the case where the base year is 2009, the current year is 2010, the annual reduction rate target is 1%, the current year reduction rate target is not specified, whether the predicted value display is necessary, and no applicable measures are specified. It is an example of a screen display. When the user operates the information processing terminal 7 and the button 68 is pressed on the energy saving plan screen, the information processing terminal 7 pulls down 63 and 64, text boxes 65 and 66, and check boxes 67 via the Internet 3. , The setting contents in the pull-down 610a to 610k, that is, the same information as the information described in FIG. In the power integration management center 1, the communication interface 12 receives the transmitted information, and the screen creation device 16 generates display information of the energy saving plan screen again based on the received setting contents under the control of the control device 11. .

  Figure 3 shows the case where the base year is 2009, the current year is 2010, the annual reduction rate target is 1%, the current year reduction rate target is 3%, whether the predicted value display is necessary or not, and no applicable measure is specified. It is an example of a screen display. As shown in FIG. 3, when the current year reduction rate target is designated, the energy use target value 61b of the current year can be changed, and the short-term target to be achieved in the current year can be freely changed. Moreover, the energy usage target values 61c to 61k after the current year are automatically changed according to the value of the energy usage target value 61b for the current year.

  Figure 4 shows that the base year is 2009, the current year is 2010, the annual reduction rate target is 1%, the current year reduction rate target is not specified, the forecast value display necessity is required, and the 2010 measures are applied to intermittent air conditioning. It is an example of a screen display when a high-efficiency LED lighting is applied in FY2014 and a high-efficiency packaged air conditioner is applied in FY2017. As shown in FIG. 4, when it is necessary to display the forecast, energy usage predicted values 62b to 62k for the current fiscal year and thereafter are displayed. Moreover, when the measure name and the application year of the applied measure are changed and the button 68 is pressed, the energy usage predicted values 62b to 62k are recalculated.

  FIG. 5 shows that the reference year is 2009, the current year is 2010, the annual reduction rate target is 1%, the current year reduction rate target is not specified, the forecast value display necessity is required, and the 2010 application measures are intermittent operation of the air conditioner. It is an example of a screen display when the application measure in 2014 is high-efficiency LED lighting. When highlighting for each year is necessary as in FY2017 to FY2019 in FIG. 5, the predicted energy usage amounts 62i to 62k for the corresponding year are highlighted. For highlighting, for example, the corresponding graph portion may be blinked, or may be colored with a color different from the graph portions of other years.

  Thus, in the energy management system according to the present embodiment, display information of the energy saving plan screen as shown in FIG. 2 to FIG. 5 is provided from the power integration management center 1 to the information processing terminal 7. By operating the terminal 7, it becomes possible to easily draft an energy saving implementation plan that takes energy saving measures into consideration. In addition, by using a GUI (Graphical User Interface) as shown in FIGS. 2 to 5, information for supporting the planning of an energy saving implementation plan can be displayed with a simple operation, improving the convenience for the user. can do.

  Note that the power integration management center 1 according to the present embodiment has been described by taking as an example the case of being configured by a plurality of devices as described in FIG. However, it is also possible to configure as a single device including the functions of each device shown in FIG. Each function of the power accumulation management center 1 according to the present embodiment is realized by a general information processing apparatus such as a server or a PC. The hardware configuration of such an information processing apparatus will be described with reference to FIG.

  FIG. 10 is a block diagram illustrating a hardware configuration of each device included in the power integration management center 1 according to the present embodiment and an information processing device such as the information processing terminal 7. In the following description, the hardware configuration of the information processing apparatus that realizes the function of the power integration management center 1 will be described as an example, but the same applies to the information processing terminal 7.

  As illustrated in FIG. 9, the information processing apparatus according to the present embodiment includes the same configuration as a general server, PC, or the like. That is, the information processing apparatus according to the present embodiment includes a CPU (Central Processing Unit) 101, a RAM (Random Access Memory) 102, a ROM (Read Only Memory) 103, an HDD (Hard Disk Drive) 104, and an I / F 105. Connected through. Further, an LCD (Liquid Crystal Display) 106 and an operation unit 107 are connected to the I / F 105.

  The CPU 101 is a calculation unit and controls the operation of the entire information processing apparatus. The RAM 102 is a volatile storage medium capable of reading and writing information at high speed, and is used as a work area when the CPU 101 processes information. The ROM 103 is a read-only nonvolatile storage medium and stores a program such as firmware. The HDD 104 is a non-volatile storage medium capable of reading and writing information, and stores an OS (Operating System), various control programs, application programs, and the like.

  The I / F 105 connects and controls the bus 108 and various hardware and networks. The LCD 106 is a visual user interface for the user to check the state of the information processing apparatus. The operation unit 107 is a user interface such as a keyboard and a mouse for a user to operate the information processing apparatus and input information. Since the user does not directly operate the devices included in the power accumulation management center 1 according to the present embodiment, the user interfaces such as the LCD 106 and the operation unit 107 can be omitted in the power accumulation management center 1.

  In such a hardware configuration, a program stored in a storage medium such as the ROM 103, the HDD 104, or an optical disk (not shown) is read into the RAM 102, and operates according to the control of the CPU 101, thereby configuring a software control unit. A functional block that realizes the functions of the information processing apparatus such as the power integration management center 1 and the information processing terminal 7 according to the present embodiment is configured by a combination of the software control unit configured as described above and hardware. .

1 Power Accumulation Management Center,
2 General line,
3 Internet,
4 Customer building,
5 Pulse accumulator,
6 Wattmeter,
7 Information processing terminal,
8 Gas meter,
11 control device,
12 Communication interface,
13 Collection device,
14 Schedule management device,
15 arithmetic unit,
16 screen creation device,
17 storage device,
61a-61k, 62a-62k graph,
63, 64 pull-down,
65, 66 text box,
67 check boxes,
68 buttons,
69 Legend,
610a-610k pull-down

Claims (11)

An energy management system for managing energy consumed in a building,
Based on the information on the energy consumption of the standard year and the energy reduction amount applied every year, calculate the target value of energy consumption for each fiscal year after the standard year, and the energy reduction amount for a specific year A target value calculation unit that updates the calculated target value based on information about
Calculate the energy usage forecast value for the next fiscal year by applying the energy usage reduced by the energy conservation measures applied in the following fiscal year to the energy usage of the reference fiscal year, and apply to the specific fiscal year By applying the energy usage reduced by energy conservation measures to the information on energy usage in the previous year of the specific year and calculating the predicted energy usage for the specific year, each year after the standard year An energy usage predicted value calculation unit for calculating a predicted value of energy usage of
An energy management system comprising: a display information generation unit configured to generate display information for displaying the calculated target value of energy usage for each year and the predicted value of energy usage for each year. The energy usage predicted value calculation unit updates the predicted value of the energy usage amount of each year after the reference year based on information input on the screen displayed based on the display information,
The energy management system according to claim 1, wherein the display information generation unit generates the display information again based on the updated information. The display information generation unit displays the contents of energy saving measures applied in a specific year for each year, and allows the user to select the contents of energy saving measures to be applied in the specific year on the displayed screen. Generating the display information;
The energy use predicted value calculation unit updates the predicted value of the energy use amount in each year after the reference year based on the energy use amount reduced by the energy saving measure selected on the displayed screen. The energy management system according to claim 2. The target value calculation unit updates the target value of the energy usage amount in each year after the reference year based on the information input on the screen displayed based on the display information,
The energy management system according to claim 1, wherein the display information generation unit generates the display information again based on the updated information. The display information generation unit displays the display information so that information on the energy reduction amount applied every year is displayed, and information on the energy reduction amount applied every year can be input on the displayed screen. Generate and
The target value calculation unit updates the target value of the energy usage amount in each year after the reference year based on the information on the energy reduction amount applied every year input on the displayed screen. The energy management system according to claim 4. The display information generation unit generates the display information so that information on the energy reduction amount for the specific year is displayed, and information on the energy reduction amount for the specific year can be input on the displayed screen. ,
The target value calculation unit updates the target value of the energy usage amount in each year after the reference year based on the information on the energy reduction amount for the specific year input on the displayed screen. The energy management system according to claim 4 or 5, characterized in that   The display information generating unit generates the display information so as to display the calculated target value of the energy usage for each year and the predicted value of the energy usage for each year in a graph for each year. The energy management system according to any one of claims 1 to 6.   The display information generation unit displays a graph of a year in which the predicted value of energy usage is higher than a target value of the energy usage in a manner different from graphs of other years. The energy management system described.   The information on the energy reduction amount applied every year is input from an information processing terminal different from the information processing terminal including the target value calculation unit via a network. The energy management system described in. An energy-saving measure information storage unit that stores information for identifying the energy-saving measure and energy usage that is reduced by the energy-saving measure;
Predicted value calculating unit for the energy consumption is either one of claims 1 to 9, characterized in that to obtain the information of the energy consumption to be reduced by the energy-saving measures on the basis of the acquired information for identifying the energy-saving measures have The energy management system described in. Information for identifying the energy-saving measures, the energy of claim 10, wherein the input via the network from an information processing terminal different from the information processing terminal that includes the energy used for predicted value calculation unit Management system.

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