JP6146126B2 - Device and program for managing energy consumption - Google Patents

Description

  The present invention relates to an apparatus and a program for managing consumption of energy such as electricity and gas.

  As a technique related to this type of energy management, there is a technique disclosed in Patent Document 1. In the technique disclosed in Patent Document 1, the target power value of the target year is obtained by multiplying the actual power consumption value of the reference year by (1-target reduction rate). Next, the target power value for the target year is assigned to each month of the target year while being weighted, and the target power value for each month of the target year is determined. Next, the target power value for each month is obtained by dividing the target power value for each month of the target year by the number of days in each month.

JP 2004-187457 A

  By the way, in the above-described conventional technology, since it is not possible to compare the power consumption of the day with the target power consumption unless the day ends, the power consumption of the day is within the target power consumption at each time of the day. I cannot make an appropriate decision to fit in. For this reason, there has been a problem that it is impossible to take measures against excessive use of power at an arbitrary time (current time).

  The present invention has been made in view of the circumstances as described above. At present, it is determined in real time whether or not excessive consumption of energy is used, and the amount of energy consumption for a specified period is within the target energy consumption for the same period. The purpose is to provide a means that makes it possible to quickly take measures to suppress the problem.

  According to the present invention, the data collection means for acquiring the measurement data of the energy consumption amount, and the target energy consumption amount within the designated period are allocated based on the time series data indicating the transition of the energy consumption amount stored in the storage means. Target value calculating means for calculating a target energy consumption amount for each section obtained by dividing a specified period, target energy consumption for each section calculated by the target value calculating means, and consumption indicated by measurement data acquired by the data collecting means There is provided an energy management device comprising information providing means for providing information indicating a relationship with an energy amount.

  According to this invention, the information providing means provides the information indicating the relationship between the target energy consumption of each section calculated by the target value calculating means and the energy consumption indicated by the measurement data acquired by the data collecting means. The user can determine in real time whether or not he / she is currently using too much energy, and can quickly take measures to keep the amount of energy consumed during the specified period within the target amount of energy consumed during the specified period. it can.

It is a block diagram which shows the structure of the energy management apparatus which is one Embodiment of this invention. It is a figure explaining the processing content of the target value calculating part in the embodiment. It is a figure which shows the content of the calculation process of the target energy consumption of each time which the target value calculating part performs. It is a figure which shows the search method of the time series data of the past energy consumption used for the target value calculating part combining the target energy consumption of each time. It is a figure which shows the display screen which the information provision part of the embodiment provides.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of an energy management apparatus according to an embodiment of the present invention. The energy management apparatus according to the present embodiment is obtained by installing the energy management program according to the present embodiment on a personal computer. The energy management apparatus according to the present embodiment manages a certain office. In this office, a measuring device for measuring consumption of various kinds of energy such as electricity and gas is provided. The energy management device according to the present embodiment periodically collects energy consumption amount measurement data from these measurement devices, thereby monitoring the amount of energy consumption generated in the office, and the amount of energy consumption in a specified period. It is a device that manages to keep within the target energy consumption. The designated period may be set to an arbitrary length, but the designated period in the present embodiment is one year. Therefore, hereinafter, the amount of energy consumed during the designated period is referred to as the annual amount of energy consumed, and the target amount of energy consumed during the designated period is referred to as the yearly target energy consumption.

  As shown in FIG. 1, the energy management apparatus according to the present embodiment includes a CPU 1 that controls the entire energy management apparatus, a display unit 2 such as an LCD (Liquid Crystal Display), and an operation unit 3 that includes a keyboard, a mouse, and the like. , I / F group 4 including I / Fs for transferring data to and from a storage device such as a communication interface (I / F) and a CD-ROM, and a basic control program such as a loader ROM (Read Only Memory) 5, RAM (Random Access Memory) 6 used as a work area by CPU 1, and HDD (Hard Disk Drive Device) 7.

  The HDD 7 stores a data collection program 8, a DB (database) 9, and a consumption energy monitoring program 10. Here, the data collection program 8 and the energy consumption monitoring program 10 constitute an energy management program according to the present embodiment. The CPU 1 loads and executes this energy management program from the HDD 7 to the RAM 6 as the main memory in response to a start command given by the operation of the operation unit 3. The energy management program can be downloaded into the HDD 7 from a predetermined site via, for example, the communication I / F in the I / F group 4 and the network. Alternatively, an appropriate I / F in the I / F group 4 may be used to download the energy management program recorded on the CD-ROM or the like into the HDD 7.

The data collection program 8 in the energy management program periodically collects energy consumption measurement data from various energy consumption measurement devices in the office via the communication I / F in the I / F group 4. It is a program that causes the CPU 1 to execute processing. The data collection program 8 includes an energy conversion unit 81. The energy conversion unit 81 is a program that converts the amount of energy consumed for various types of energy indicated by the measurement data received by the communication I / F into an equivalent amount of energy consumed for specific types of energy. In the present embodiment, various types of energy consumption are converted into MJ, which is a work amount, and managed in an integrated manner. Specifically, the energy conversion unit 81 in the present embodiment converts 1 kwh of electric power into 9.76 MJ, 1 m ³ of gas into 75 MJ, and 1 L of oil into 37 MJ.

  The DB 9 stores an office calendar 90, annual report data 91, monthly report data 92, and daily report data 93. Here, the office calendar 90 includes actual data indicating whether each year of the year up to the current year is an office work day or a holiday, and the day on which the current process is being executed is the office work attendance date. This is plan data indicating the future including whether it is a day or a holiday. The annual report data 91 is data collected for each year up to the current year, and indicates the amount of energy consumed for each month in the year. The monthly report data 92 is data collected for each month up to the current month, and indicates the amount of energy consumed on each day of the month. The daily report data 93 is data collected for each day up to the current day of the current year, and indicates the amount of energy consumed at each time of the day (for example, each time at one hour intervals). As described above, the annual report data 91, the monthly report data 92, and the daily report data 93 are time-series data indicating the transition of the energy consumption amount in the office. In the present embodiment, the data collection program 8 creates and updates annual report data 91, monthly report data 92, and daily report data 93 in the DB 9 based on the measurement data acquired via the I / F group 4.

  The energy consumption monitoring program 10 in the energy management program includes a target value calculation unit 110, a target correction unit 120, and an information providing unit 130. The target value calculation unit 110 allocates the target energy consumption for each section obtained by dividing the specified period by allocating the target energy consumption within the specified period based on the time series data indicating the transition of the energy consumption stored in the DB 9. It is a means for calculating. More specifically, the target value calculation unit 110 calculates the monthly, daily, and time of the current year based on the annual target energy consumption and the annual report data 91, monthly report data 92, and daily report data 93 in the DB 9. This program calculates the target energy consumption. Here, the annual target energy consumption is, for example, data sent to the energy management apparatus from a computer at the head office that supervises a plurality of offices.

  The target correction unit 120 calculates the total value of the actual values of energy consumption from the start of the specified period to the present indicated by the measurement data collected by the data collection program 8 and the target energy consumption from the start of the specified period to the present. This is a program for correcting the target energy consumption calculated by the target value calculation unit 110 based on the difference from the value. Specifically, the target correction unit 120 calculates the total energy consumption up to the current month indicated by the measurement data acquired by the data collection program 8 and the target energy consumption up to the current month calculated by the target value calculation unit 110. Based on the difference from the total amount, the target energy consumption calculated by the target value calculator 110 for each month after the next month of the current year is corrected. In addition, the target correction unit 120 is a total value of the total energy consumption up to the current day of the month indicated by the measurement data acquired by the data collection program 8 and the target energy consumption up to the current day calculated by the target value calculation unit 110. Based on the difference, the target energy consumption amount calculated by the target value calculation unit 110 for each day after the next day is corrected.

  The information providing unit 130 is a program that provides the user with information indicating the relationship between the target energy consumption calculated by the target value calculator 110 and the energy consumption indicated by the measurement data acquired by the data collection program 8. Specifically, the information providing unit 130 calculates the time transition of the accumulated value of the consumption energy amount for the day indicated by the measurement data acquired by the data collection program 8 and the target consumption energy amount for the day calculated by the target value calculation unit 110. Information on which the time transition of the accumulated value is compared is displayed on the display unit 2. In addition, the information providing unit 130 determines the time transition of the cumulative value of the consumed energy amount of the current month indicated by the measurement data acquired by the data collection program 8 and the time of the cumulative value of the target consumed energy amount of the current month calculated by the target value calculating unit 110. Information that contrasts the transition is displayed on the display unit 2. In addition, the information providing unit 130 determines the time transition of the cumulative value of the current consumption energy amount of the current year indicated by the measurement data acquired by the data collection program 8 and the time of the cumulative value of the target energy consumption amount of the current year calculated by the target value calculation unit 110. Information that contrasts the transition is displayed on the display unit 2.

Next, the operation of this embodiment will be described. FIG. 2 is a diagram illustrating a schematic operation of the target value calculation unit 110. In the present embodiment, the target value calculation unit 110 calculates a target energy consumption amount for each month of the year in accordance with, for example, a command given by an operation of the operation unit 3 (see FIG. 2A). Specifically, the annual target energy consumption is EYT, the monthly energy consumption indicated by the annual report data 91 of the previous year in DB9 is EMPj (j = 1-12), and the total energy consumption of the previous year is EYP. In this case, the target energy consumption EMTj (j = 1 to 12) for each month j of the current year is calculated according to the following equation.
EMTj = EYT × EMPj / EYP (1)

  In a preferred embodiment, the target value calculation unit 110 displays a bar graph A1 indicating the target energy consumption EMTj (j = 1 to 12) for each month j calculated in this way as shown in FIG. , And a line graph A2 indicating the cumulative value of the target energy consumption EMTj up to each month j are displayed on the display unit 2.

Further, the target value calculation unit 110 calculates a target energy consumption amount for each day in the current month, for example, every time the month changes (see FIG. 2B). Specifically, the target energy consumption for the current month is EMTj, and the energy consumption for each day indicated by the monthly report data 92 for the previous month in DB9 is EDPk (k = 1 to kmax, kmax = 31, 30, 29, or 28). When the total amount of energy consumption for the current month is EMPj, the target energy consumption EDTk (k = 1 to kmax) for each day k of the current month is calculated according to the following equation.
EDTk = EMTj × EDPk / EMPj (2)

  In a preferred embodiment, the target value calculation unit 110 follows the command given by the operation of the operation unit 3, for example, as shown in FIG. 2B, the target energy consumption EDTk (k = 1 to 1) for each day k of the current month. kamx) is displayed on the display unit 2 together with a line graph B2 indicating the cumulative value of the target energy consumption EDTk up to each day k.

  In addition, the target value calculation unit 110 calculates a target energy consumption amount ETTn (n = 1 to 12) at each time of the day (see FIG. 2C), for example, every time the day changes and the reference time is reached. In a preferred embodiment, the target value calculation unit 110 follows the command given by the operation of the operation unit 3, for example, as shown in FIG. 2C, the target energy consumption ETTn (n = 1 to 12) at each time n of the day. ) Is displayed on the display unit 2 together with the line graph C2 indicating the cumulative value of the target energy consumption ETTn up to each time n.

Here, with reference to FIG. 3, a calculation process of the target energy consumption amount ETTn (n = 1 to 12) at each time of the day will be described. The actual consumption of energy has the property of changing every moment as environmental conditions change. For this reason, in setting the target energy consumption amount, it is necessary to follow the change in the situation (change in the situation that causes energy consumption) and accurately review the future and correct the target value.
Therefore, in the present embodiment, when the day changes and the base time (in this example, time 9:00) is reached, the target value calculation unit 110 determines each time of the day based on the transition pattern of the energy consumption up to the base time. Target energy consumption is calculated. Specifically, it is as follows.

  First, the target value calculation unit 110 obtains an energy consumption amount EWTn (n = 1 to n0) up to the reference time n0 of the day (see FIG. 3A). Next, the target value calculation unit 110 selects one daily report data from each daily report data 93 within the past one year up to the current day. That is, the pattern shape of the transition pattern of the energy consumption amount up to the reference time n0 indicated by the daily report data is closest to the pattern shape of the transition pattern of the energy consumption amount EWTn (n = 1 to n0) up to the reference time n0 of the day. This is daily report data that can be useful (see FIG. 3B).

  Next, the energy consumption amount EXTn (n = n0 to nmax) after the reference time n0 is selected from the energy consumption amounts at the respective times indicated by the selected daily report data (see FIG. 3C). Next, a transition pattern h.EXTn (n = n0-24) obtained by multiplying the transition pattern EXTn (n = n0-24) after the reference time n0 by the coefficient h is a transition pattern EWTn (n = 1-n) before the reference time n0. n0), level adjustment is performed to adjust the coefficient h (see FIGS. 3D and 3E). Next, using the energy consumption amount EWTn (n = 1 to n0) up to the reference time n0 of the day and the energy consumption amount h · EXTn (n = n0 to 24) after level adjustment, the target for each time of the day A consumed energy amount ETTn (n = 1 to 24) is synthesized (see FIG. 3F).

  FIG. 4 shows a specific example of a past consumption energy amount search method used for synthesizing the target consumption energy amount ETTn (n = 1 to 24) at each time. In this example, when the target value calculation unit 110 obtains the energy consumption EWTn (n = 1 to n0) at each time up to the reference time n0 on the current day (see FIG. 4A), the target value calculation unit 110 in FIG. As shown, the normalized consumption, the upper limit value, and the lower limit value at each time n (n = 1 to n0 (n0 = 9 in this example)) are calculated. Here, the normalized consumption amount is a value obtained by dividing the energy consumption amount EWTn (n = 1 to n0) at each time up to the reference time n0 of the day by the energy consumption amount EWT1 at the start of the day, and the upper limit value and The lower limit value is a value obtained by multiplying the normalized consumption by 1 ± α (α is a predetermined constant). Next, the target value calculation unit 110 calculates the normalized consumption amount at each time from the energy consumption amount at each time indicated by each daily report data 93 within the past year until the current day. Then, the normalized consumption amount obtained from the energy consumption amount at each time indicated by each daily report data 93 is compared with the upper limit value and lower limit value of the normalized consumption amount at each time until the reference time of the day, For each daily report data, the number of times (the number of times) that the normalized consumption has fallen between the upper limit value and the lower limit value is counted. Then, the target value calculation unit 110 selects daily report data having the maximum count value, and synthesizes the target energy consumption at each time of the day using the energy consumption at each time indicated by the selected daily report data. (See FIG. 4D).

  The above is the details of the target energy consumption calculation process executed by the target value calculator 110 at the reference time. Although this process may be performed only once a day, in a preferred embodiment, the target value calculation unit 110 executes this process a plurality of times a day. That is, when the target value calculation unit 110 executes this process at time 9:00, which is the first reference time, and sets the target energy consumption amount at each time, the target value calculation unit 110 sets, for example, time 10:00, which is the next reference time. And wait. When the reference time 10:00 arrives, the same processing is executed again, and the target energy consumption at each time is set.

  The target correction unit 120 monitors the cumulative value of the actual value of the energy consumption indicated by the measurement data collected by the data collection program 8, and based on this monitoring result, the target consumption for each month calculated by the target value calculation unit 110 The amount of energy and the target amount of energy consumed each day are corrected. Specifically, for example, in a certain month, when the cumulative value of the actual energy consumption amount up to the current month within the year exceeds the target energy consumption cumulative value, the target correction unit 120 calculates the target energy consumption amount from the target amount of energy consumption. In order to recover the excess amount, the target energy consumption for each month after the next month calculated by the target value calculation unit 110 is decreased (or increased) by a certain ratio. Further, for example, when the cumulative value of the actual energy consumption amount up to the current day of the current month exceeds the target energy consumption cumulative value on a certain day, the target correction unit 120 determines whether the energy consumption amount exceeds the target amount. Therefore, the target energy consumption for each day after the next day calculated by the target value calculation unit 110 is reduced (or increased) by a certain ratio.

  The information providing unit 130 causes the display unit 2 to display information indicating the relationship between the target energy consumption calculated by the target value calculator 110 and the energy consumption indicated by the measurement data acquired by the data collection program 8. 5A to 5C exemplify display screens provided by the information providing unit 130. FIG. The user can display a desired screen on the display unit 2 by operating the operation unit 3.

  In the example shown in FIG. 5A, the information providing unit 130 displays a graph by comparing the cumulative value of the target value of the energy consumption amount and the cumulative value of the actual value at each time of the day on the top of the display screen. . Further, the information providing unit 130 displays a meter for displaying a level difference between the current energy consumption and the threshold in the middle of the display screen. When the deviation from the threshold value of the consumed energy amount exceeds a predetermined limit, the information providing unit 130 automatically issues an alarm and gives an output signal to the energy consumption target device, thereby automatically consuming energy. Perform volume reduction control. In addition, the information providing unit 130 displays, in the lower part of the display screen, the cumulative value of the energy consumption amount up to the current day, the target energy consumption amount, and the level relationship. By visually recognizing the display screen of FIG. 5A, the user can immediately determine whether or not the current energy consumption state is appropriate, such as changing the set temperature of the air conditioner. Actions can be taken to keep the amount within the target energy consumption.

  In the example shown in FIG. 5B, the information providing unit 130 displays a graph by comparing the cumulative value of the target value of the energy consumption amount and the cumulative value of the actual value on each day of the current month on the top of the display screen. . Further, the information providing unit 130 displays a meter for displaying a level difference between the current energy consumption and the threshold value in the middle of the display screen. Further, the information providing unit 130 displays the integrated value of the amount of energy consumption up to the present month in the lower level of the display screen. Further, in the example shown in FIG. 5C, the information providing unit 130 compares the cumulative value of the target value of the energy consumption amount and the cumulative value of the actual value in each month of the current year at the top of the display screen. indicate. In addition, the information providing unit 130 displays a level difference between the current energy consumption and the threshold value in the middle of the display screen. Moreover, the information provision part 130 displays the integrated value of the actual value of annual energy consumption level on the lower level of the display screen. By visually recognizing the display screens of FIGS. 5B and 5C, the user can take energy saving measures in units such as daily, weekly, and monthly.

  As described above, according to the present embodiment, the relationship between the target energy consumption calculated by the target value calculator 110 and the energy consumption (actual value) indicated by the measurement data acquired by the data collection program 8 is shown. Since the information is provided by the information providing unit 130, the user can immediately determine whether or not the current energy consumption state is appropriate, so that the energy consumption amount can be kept within the target energy consumption amount. You can take action.

  Further, according to the present embodiment, the expected pattern of the energy consumption status of the day is retrieved from the past daily report data collected and accumulated at the establishment, and used for synthesizing the target energy consumption at each time of the day. There is an effect that it is possible to set a reasonable target energy consumption that can be achieved according to the actual situation of the office.

  In addition, according to the present embodiment, since the current energy consumption status can be grasped, not only the excessive energy consumption but also the excessive consumption, for example, the refrigerator, the freezer, etc. were inadvertently stopped. It also leads to discovery.

  Moreover, according to this embodiment, the cumulative value of the actual value of the energy consumption amount in units of years and months is displayed. Therefore, even when an alarm of excessive energy consumption occurs for a moment, if it is confirmed that there is a margin in the results of monthly and yearly units, avoid reacting to such an alarm wastefully. It becomes possible.

  In addition, according to this embodiment, since the transition pattern of the consumption energy amount on the current day is searched based on the past results, the target consumption energy amount on the current day is calculated without separately investigating and inputting environmental information such as temperature and humidity. can do.

  In addition, according to the present embodiment, the target correction unit 120 corrects the target energy consumption calculated by the target value calculation unit 110 based on the monitoring result of the actual measurement value of the energy consumption. Energy consumption can be controlled to keep the energy amount within the annual target energy consumption.

  Further, according to the present embodiment, since the current energy consumption status can be grasped, for example, the air conditioning temperature is shifted by a predetermined amount, or a predetermined number of lighting devices are turned off, for example, by the difference value between the target value and the actual value. Energy saving guidance instructions can be output accurately and in real time, and energy saving measures can be taken.

<Other embodiments>
Although one embodiment of the present invention has been described above, other embodiments are conceivable for the present invention. For example:

(1) In the above embodiment, the DB 9 is stored in the HDD 7. However, for example, the DB 9 may be stored in a server on the Internet, and the energy management apparatus may access the DB 9 via the Internet. A plurality of energy management devices may share the DB 9 of one server. Further, in the above embodiment, the energy management device of a certain office refers to the past annual report data, monthly report data, and daily report data of the business office in order to calculate the target energy consumption. There is no past annual report data, monthly report data, or daily report data at the establishment. Therefore, in order for the energy management apparatus of a certain office to calculate the target energy consumption, it may be configured to be able to refer to past annual report data, monthly report data, and daily report data of another office.

(2) In the above embodiment, the target value calculation unit 110 consumes each time until the reference time indicated by each daily report data in order to select daily report data to be used for synthesizing the target consumption energy amount at each time of the day. The transition pattern of energy amount was referred. However, in addition to the amount of energy consumed, the daily data includes environmental data such as operating hours, production forms, changes in temperature and humidity around the office, and changes in the amount of solar radiation around the office. The daily report data used for calculating the target energy consumption may be selected in consideration of the environmental data indicating the situation up to this point and the degree of approximation of the environmental data in the daily report data.

(3) In the above embodiment, in calculating the target energy consumption at each time, in order to search for daily allowance data that approximates the pattern shape of the transition pattern of the current energy consumption, Normalized consumption was calculated from the amount of energy consumed at the time. However, in order to avoid calculating such a normalized consumption amount for each search, the normalized consumption amount may be calculated at the time of creating daily report data and stored in the DB 9 as being included in the daily report data.

(4) In the above embodiment, when the target value calculation unit 110 selects past daily report data 93 to be used for synthesizing the target energy consumption at each time of the day, the energy consumption at each time indicated by each daily report data. The number of times each normalized consumption obtained from the above was within the upper limit and lower limit was counted, and the daily report data with the largest count value was selected. However, the normalized consumption of each time until the reference time is not handled equally in this way, but for example, a weight value that becomes larger as the time closer to the reference time is assigned to each time until the reference time. When the normalized consumption at each time obtained from the daily report data falls within the range between the upper and lower limits, the weight value of the time is accumulated, and the daily report data with the largest accumulated value is obtained. May be selected.

(5) In the above embodiment, the designated period is one year, but the designated period may be a period shorter than one year (for example, half a year) or a period longer than one year (for example, two years).

(6) In the above embodiment, the reference time is generated at least once a day, but the reference time is generated in a longer cycle (for example, one week or one month), and the transition pattern of energy consumption up to the reference time Based on the above, the target energy consumption after the reference time may be calculated.

DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... Display part, 3 ... Operation part, 4 ... I / F group, 5 ... ROM, 6 ... RAM, 7 ... HDD, 8 ... Data collection program, 81 ... Energy conversion unit, 9 ... DB, 90 ... Business calendar, 91 ... Annual report data, 92 ... Monthly report data, 93 ... Daily report data, 10 ... Energy consumption monitoring program, 110 ... Target value calculation unit, 120 …… Target revision unit, 130 …… Information provision unit.

Claims (10)

A data collection means for obtaining measured energy consumption data;
A target energy consumption amount for each month of the specified period is calculated by allocating a target energy consumption amount for the specified period based on time series data indicating a transition of the energy consumption amount stored in the storage means, The target energy consumption is calculated based on the time-series data stored in the storage means to calculate the target energy consumption for each day of each month. When the set reference time is reached, the consumption stored in the storage means By searching for time series data showing the transition of energy amount, the transition pattern of the past energy consumption that approximates the transition pattern and pattern shape of the energy consumption at each time until the reference time is obtained. A target value calculating means for calculating a target energy consumption amount at each time after the reference time based on the transition of the energy amount;
And characterized by comprising the objectives energy consumption of the target value calculation means has calculated, and information providing means for providing information indicating a relationship between the energy consumption of the measurement data data acquisition means has acquired exhibits Energy management device. 2. The energy management apparatus according to claim 1, wherein the target value calculation means calculates the target energy consumption at each time a plurality of times a day while updating the reference time . A total value of the total energy consumption from the start of the specified period to the present indicated by the measurement data acquired by the data collection means and the target energy consumption from the start of the specified period to the present calculated by the target value calculation means 3. The energy management apparatus according to claim 1, further comprising target correction means for correcting a target energy consumption amount calculated by the target value calculation means based on the difference between the target value and the target value. The target correction means includes a total energy consumption from the start of the specified period to the current month indicated by the measurement data acquired by the data collection means, and a target from the start of the specified period to the current month calculated by the target value calculation means. 4. The energy management apparatus according to claim 3, wherein the target energy consumption amount calculated by the target value calculating means for each month after the next month is corrected based on a difference from the total energy consumption amount. The target correcting means includes a total energy consumption amount up to the current day of the month indicated by the measurement data acquired by the data collecting means and a total value of target energy consumption amounts to the current day of the current month calculated by the target value calculating means. 5. The energy management apparatus according to claim 3, wherein the target energy consumption calculated by the target value calculation means is corrected for each day after the next day based on the difference. The information providing means includes a time transition of a cumulative value of the consumed energy amount for the day indicated by the measurement data acquired by the data collecting means and a temporal transition of the cumulative value of the target energy consumption amount for the day calculated by the target value calculating means. 6. The energy management apparatus according to claim 1, wherein the contrasted information is displayed on a display means. 7. The data collection unit includes a unit that generates time series data indicating a transition of an energy consumption amount based on the measurement data of the energy consumption amount and stores the time series data in the storage unit. The energy management device according to claim 1. The energy management apparatus according to claim 1, wherein the data collection unit includes an energy conversion unit that converts a consumed energy amount of various types of energy indicated by the measurement data into a specific type of energy amount. Computer
A data collection means for obtaining measured energy consumption data;
A target energy consumption amount for each month of the specified period is calculated by allocating a target energy consumption amount for the specified period based on time series data indicating a transition of the energy consumption amount stored in the storage means, The target energy consumption is calculated based on the time-series data stored in the storage means to calculate the target energy consumption for each day of each month. When the set reference time is reached, the consumption stored in the storage means By searching for time series data showing the transition of energy amount, the transition pattern of the past energy consumption that approximates the transition pattern and pattern shape of the energy consumption at each time until the reference time is obtained. A target value calculating means for calculating a target energy consumption amount at each time after the reference time based on the transition of the energy amount;
A program that functions as an information providing unit that provides information indicating a relationship between a target energy consumption calculated by the target value calculating unit and a consumed energy amount indicated by measurement data acquired by the data collecting unit. The program further causes the computer to
A total value of the total energy consumption from the start of the specified period to the present indicated by the measurement data acquired by the data collection means and the target energy consumption from the start of the specified period to the present calculated by the target value calculation means 10. The program according to claim 9, wherein the program is made to function as target correcting means for correcting the target energy consumption calculated by the target value calculating means based on the difference between the target value calculating means and the target value calculating means.

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