JP2011007453A - Device and method of calculating energy saving effect amount - Google Patents

Abstract

PROBLEM TO BE SOLVED: To expand an application target enabling automatic calculation of energy saving effect amount.SOLUTION: As a data type usable for calculation of the energy saving effect amount, a heat source cold water measurement temperature is defined as a "first type measurement value", a cooling tower cooling water measurement temperature as a "second type measurement value", a heat source cold water set temperature as a "set value" and a cold water reference temperature difference as a "reference value", and a priority order is determined in order of the "first type measurement value", "second type measurement value", "set value" and "reference value" and is registered in a data type storage part 2B. By using data on the "second type measurement value" when data on the "first type measurement value" is not accumulated in a collection data storage part 2A, by using data on the "set value" when the data on the "second type measurement value" is not accumulated either, and by using data on the "reference value" when the data on the "set value" is not accumulated either, the energy saving effect amount is calculated.

Description

  The present invention relates to an energy saving effect amount calculation apparatus and method for calculating a difference between an energy consumption amount before an energy saving measure and an energy consumption amount after an energy saving measure as an energy saving effect amount.

  Conventionally, an air-conditioning control system as shown in Patent Document 1 has been proposed as a system applied to large energy users such as semiconductor manufacturing establishments. In this air conditioning control system, the air conditioning operation management company stores the result measured by the outside air state measuring means in the outside air state history database, and obtains the predicted maximum temperature information of the day from the weather forecast providing means. Using these pieces of information, the outside air state transition predicting means predicts the transition of the outside air state on that day. Then, using each information stored in the air conditioning heat load database, the air conditioning equipment characteristic database, and the air conditioning equipment setting temperature / humidity database, an optimal operation method (energy saving operation) method of the air conditioning equipment is provided to the semiconductor manufacturing establishment. Hereinafter, energy saving is abbreviated as energy saving.

  When such an air conditioning control system is introduced, the difference between the energy consumption before the energy saving measure and the energy consumption after the energy saving measure is obtained as an energy saving effect amount. There are things like considering it. For example, cooling water variable flow rate control is an example of an energy saving operation method. In this case, the energy saving effect amount is the difference between the energy consumption amount when the cooling water variable flow rate control is performed and the energy consumption amount when the cooling water variable flow rate control is not performed (when the cooling water pump is driven at a constant flow rate). The amount of energy saving effect is calculated and converted into a long-term amount of months or years.

Here, the amount of energy consumption when the cooling water variable flow rate control is performed can be obtained using the following equation (1). Using this formula (1), the pump power is calculated at a cycle of 1 minute, the pump power calculated at the cycle of 1 minute is integrated, and the amount of energy consumed per day when cooling water flow control is performed (energy saving measures) The amount of energy consumed in the next day) is obtained.
Pump power (kW) = pump rated power (kW) x pump operating condition x heat source load factor (%) (1)

Further, the amount of energy consumption when the cooling water variable flow rate control is not performed can be obtained using the following equation (2). Using this formula (2), the pump power is calculated at a cycle of 1 minute, the pump power calculated at the cycle of 1 minute is integrated, and the amount of energy consumed per day when the cooling water variable flow rate control is not performed (energy saving measure) (Energy consumption of the previous day) is obtained.
Pump power (kW) = pump rated power (kW) x pump operating state (2)

  In the above formulas (1) and (2), the pump refers to the cooling water pump, the pump operation state indicates the on / off state of the cooling water pump, and is set to “1” when the pump is on. When it is “off”, it is set to “0”. Further, the heat source load factor is obtained as heat source load factor (%) = cold water temperature difference (° C.) ÷ cold water rated temperature difference (° C.) × 100.

JP 2002-89929 A

  In the above-described equation (1), the heat source load factor is obtained as heat source load factor (%) = cold water temperature difference (° C.) ÷ cold water rated temperature difference (° C.) × 100. In this case, the cold water temperature difference can be obtained as cold water temperature difference (° C.) = Heat source cooling water inlet measured temperature (° C.) − Heat source cooling water outlet measured temperature (° C.). In other words, if the heat source cooling water inlet temperature and the heat source cooling water outlet temperature are collected and accumulated as measured values, it is assumed that the cooling water variable flow rate control was performed without actually performing the cooling water variable flow rate control. The amount of energy consumed per day can be calculated from the measured values, and the energy saving effect amount can be automatically calculated (automatic prediction).

  However, if this automatic calculation of the energy saving effect amount is to be executed, the heat source cooling water inlet temperature and the heat source cooling water outlet temperature of the target establishment must be collected and accumulated as measured values. For establishments where the water inlet temperature and the heat source cooling water outlet temperature are not collected and stored as measured values, the energy saving effect amount cannot be calculated automatically, and there is a problem that the applicable establishments are limited.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide an energy saving effect amount calculation device and method capable of expanding an application target capable of automatically calculating an energy saving effect amount. Is to provide.

  In order to achieve such an object, the present invention calculates an energy saving effect amount in an energy saving effect amount calculation device that calculates a difference between an energy consumption amount before an energy saving measure and an energy consumption amount after an energy saving measure as an energy saving effect amount. Data type storage means for storing a plurality of types of registered data types with priorities registered as the types of data that can be used for the first time, and actually obtained as usable data among the plurality of registered data types And an energy saving effect amount calculating means for calculating an energy saving effect amount using data of the highest priority data type. The present invention can be realized not only as an energy saving effect amount calculation device but also as an energy saving effect amount calculation.

  In the present invention, the energy saving effect amount is calculated using data of the data type with the highest priority actually obtained as usable data among a plurality of registered data types. For example, if the data type is registered in the order of measured value, set value, and standard value, if the measured value is not obtained, the energy saving effect amount is calculated using the set value. If not obtained, the energy saving effect amount is calculated using the standard value.

  According to the present invention, a plurality of types of data types are registered with priorities determined, and the highest priority data actually obtained as usable data among the plurality of registered types of data. Since the energy saving effect amount is calculated using the type of data, for example, when the measured value is not obtained, the setting value is used to calculate the energy saving effect amount, and the measured value and the set value are obtained. If the energy saving effect amount is not calculated, the energy saving effect amount is calculated using the standard value, so that it is possible to expand the application targets that can automatically calculate the energy saving effect amount.

It is a figure which shows the principal part of the air-conditioning control system using one Embodiment of the energy saving effect amount calculation apparatus which concerns on this invention. It is a functional block diagram of the principal part of the energy-saving effect amount calculation apparatus in this air-conditioning control system. It is a flowchart for demonstrating the processing operation in this energy-saving effect amount calculation apparatus. It is a figure which shows the example which converted and displayed the energy saving effect amount of 1 day in money amount in this energy saving effect amount calculation apparatus.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a main part of an air conditioning control system using an embodiment of an energy saving effect amount calculating apparatus according to the present invention.

  In the figure, 100 is an A office (base A), and 200 is an air conditioning operation management company. The A office 100 is provided with an air conditioning facility 1, and the air conditioning operation management company 200 is provided with an energy saving effect amount calculation device 2 according to the present invention. The office A 100 and the air conditioning operation management company 200 are connected to each other via a network, but the configuration is omitted for the sake of simplicity.

  In the A office 100, the air conditioning facility 1 includes a heat source unit (refrigerator) 3 that generates cold water, a pump 4 that transports the cold water generated by the heat source unit 3, a forward header 5, a forward water pipe 6, A load device 7 such as an air conditioner that receives supply of cold water sent from the header 5 via the outgoing water pipeline 6, a return water pipeline 8, and heat exchanged in the load equipment 7 and sent via the return water pipeline 8. A return header 9 to which the cold water coming back is returned, a bypass pipe 10 provided between the forward header 5 and the return header 9, and a cooling tower 11 provided as an auxiliary to the heat source device 3 are provided. . The cooling tower 11 includes a cooling tower fan 11-1 and a cooling water pump 11-2, and pumps the cooling water generated by the cooling tower fan 11-1 to the heat source unit 3 by the cooling water pump 11-2.

  In this air conditioning equipment 1, temperature sensors T 1 and T 2 are provided at the inlet / outlet of the cold water from the heat source device 3, and temperature sensors T 3 and T 4 are provided at the inlet / outlet of the cooling water from the cooling tower 11. The temperature sensor T1 measures the temperature of the cold water entering the heat source device 3 as the heat source cold water inlet temperature, and the temperature sensor T2 measures the temperature of the cold water exiting from the heat source device 3 as the heat source cold water outlet temperature. The temperature sensor T3 measures the temperature of the cooling water entering the cooling tower 11 as the cooling tower cooling water inlet temperature, and measures the temperature of the cooling water exiting from the cooling tower 11 as the cooling tower cooling water outlet temperature.

  In the air conditioning operation management company 200, the energy saving effect amount calculation device 2 is provided with various data such as measured values and set values at the A office 100 via the network, and these data are collected data from the A office 100. Accumulated as.

  In this example, the measured value of the heat source cold water inlet temperature from the temperature sensor T1 (heat source cold water inlet measured temperature) tin from the temperature sensor T1 in the A office 100, the measured value of the heat source cold water outlet temperature from the temperature sensor T2 (heat source cold water outlet measured temperature) tout. , Measured value of cooling tower cooling water inlet temperature from temperature sensor T3 (cooling tower cooling water inlet measured temperature) tcin, measured value of cooling tower cooling water outlet temperature from temperature sensor T4 (cooling tower cooling water outlet measured temperature) tcout Is stored in the energy saving effect amount calculation device 2 as collected data with a period of 1 minute.

  Also, actual data (setting value log) of the set value (heat source cold water inlet set temperature) tinsp of the heat source cold water inlet temperature and the set value (heat source cold water outlet set temperature) toutsp of the heat source cold water outlet at the A office 100 are given, It is stored in the energy saving effect amount calculation device 2 as collected data with a period of 1 minute.

  Further, the heat source cold water rated temperature difference Δtrt, the cooling tower cooling water rated temperature difference tcrt, and the cold water standard temperature difference Δtst in the A office 100 are given as design values, and are stored in the energy saving effect amount calculation device 2 as collected data. In addition, the operation schedule of the heat source unit 3 in the office A is given as information indicating the pump operation state of the cooling water pump 11-2, and the rated power of the cooling water pump 11-2 is given as pump rated power, thereby saving energy. The collected data is accumulated in the quantity calculation device 2.

  In the above description, the A office (base A) 100 has been described as a representative. However, various data such as measured values and set values at the office are also similarly obtained from other offices (other bases). It is given via the network and is stored in the energy saving effect amount calculation device 2 as collected data from the establishment.

  In addition, when collecting collected data from each office, the heat source cold water rated temperature difference Δtrt, the cooling tower cooling water rated temperature difference tcrt, the cooling water standard temperature difference Δtst, the operation schedule of the heat source unit, the rated power of the cooling water pump, etc. are air-conditioned. In the case where the operation management company 200 collectively manages the data, it is not necessary to collect the data from each business site. In addition, in each office, the heat source cold water rated temperature difference Δtrt, the cooling tower cooling water rated temperature difference tcrt, the cold water standard temperature difference Δtst, and the rated power of the cooling water pump may be the same.

  FIG. 2 shows a functional block diagram of the main part of the energy saving effect amount calculation device 2. The energy saving effect amount calculation device 2 has a collection data storage unit 2A for storing collected data from each office as a functional block unique to the present embodiment, and a priority order as a data type that can be used for calculating the energy saving effect amount. Calculated by a data type storage unit 2B that stores a plurality of types of registered data, an energy saving effect amount calculation unit 2C that calculates an energy saving effect amount according to an instruction from the operator, and an energy saving effect amount calculation unit 2C The energy saving effect amount display unit 2D that displays the energy saving effect amount converted into a monetary amount and a calculation formula storage unit 2E that stores a calculation formula of energy consumption used when calculating the energy saving effect amount in the energy saving effect amount calculation unit 2C And. The energy saving effect amount calculation device 2 is realized by hardware including a processor and a storage device, and a program that realizes various functions in cooperation with the hardware.

  In the present embodiment, in the data type storage unit 2B, the heat source cold water measured temperature (heat source cold water inlet measured temperature, heat source cold water outlet measured temperature) is “first type measured value”, and the cooling tower cooling water measured temperature (cooling tower cooling). Measured water inlet temperature, cooling tower cooling water outlet measured temperature) “Type 2 measured value”, heat source cold water set temperature (heat source cold water inlet set temperature, heat source cold water outlet set temperature) “set value”, chilled water standard temperature difference Four data types are registered as “standard values”. In addition, for these four data types, “first type measured value (heat source cold water measured temperature)”, “second type measured value (cooling tower cooling water measured temperature)”, “set value (heat source cold water set temperature)” ”,“ Standard value (cold water standard temperature difference) ”in order of priority.

  Further, the calculation formula storage unit 2E stores the above-described formula (1) as a formula for obtaining the consumed energy amount (consumed energy amount after energy saving measure) when the cooling water variable flow rate control is performed. The above-described equation (2) is stored as an equation for obtaining the amount of energy consumed when the variable flow rate control is not performed (the amount of energy consumed before the energy saving measure). Here, as shown in FIG. 2, the equation (1) is expressed as P1 = pump rated power (kW) × pump operating state × heat source load factor (%), and the equation (2) is expressed as P2 = Expressed as pump rated power (kW) x pump operating state.

  The calculation formula storage unit 2E stores the following four calculation formulas as formulas for obtaining the heat source load factor when calculating P1. In these calculation formulas, calculation formula 1 uses “first type measurement value (heat source cold water measurement temperature)” as a data type, and calculation formula 2 uses “second type measurement (cooling tower cooling water measurement temperature value)”. The calculation formula 3 uses “set value (heat source cold water set temperature)” and the calculation formula 4 uses “standard value (cold water standard temperature difference)”.

(1) Heat source load factor (%) = (heat source cold water inlet measured temperature (° C.) − Heat source cooling water outlet measured temperature (° C.)) ÷ heat source cold water rated temperature difference (° C.) × 100 = (tin−tout) ÷ Δtrt × 100 ··· Formula 1
(2) Heat source load factor (%) = (cooling tower cooling water inlet measured temperature (° C.) − Cooling tower cooling water outlet measured temperature (° C.)) ÷ cooling tower cooling water rated temperature difference (° C.) × 100 = (tcin− tcout) ÷ Δtcrt × 100 (2)
(3) Heat source load factor (%) = (heat source cold water inlet set temperature (° C.) − Heat source cold water outlet set temperature (° C.)) ÷ heat source cold water rated temperature difference (° C.) × 100 = (tinsp−toutsp) ÷ Δtrt × 100 .... Calculation formula 3
(4) Heat source load factor (%) = Chilled water standard temperature difference (° C.) ÷ Heat source cold water rated temperature difference (° C.) × 100 = Δtst ÷ Δtrt × 100

[Calculation and display of energy saving effect amount]
Next, a processing operation in the energy saving effect amount calculation device 2 will be described with reference to a flowchart shown in FIG.

  For example, when the operator designates the A office and is instructed to calculate the energy saving effect amount (YES in step S101), the energy saving effect amount calculation unit 2C has priority 1 registered in the data type storage unit 2B. It is checked whether or not data of that data type is stored in the collected data storage unit 2A (step S102).

  In this case, the data type of the priority 1 is “first type measurement value (heat source cold water measurement temperature)”, and the heat source cold water inlet measurement temperature tin and the heat source cold water outlet measurement temperature tout are collected as “first type measurement value”. Accumulated in the storage unit 2A.

  Accordingly, the energy saving effect amount calculation unit 2C proceeds to step S106, obtains the heat source load factor by the calculation formula 1 in the calculation formula storage unit 2E, and obtains the heat source load factor, the pump rated power of the cooling water pump, and the pump operation. According to the equation (1) in the calculation formula storage unit 2E from the state, the pump power P1 is calculated at a cycle of 1 minute, the pump power P1 calculated at the cycle of 1 minute is integrated, and the cooling water variable flow rate control is performed. The amount of energy consumed per day (the amount of energy consumed per day after energy saving measures) is calculated.

  Then, the energy saving effect amount calculation unit 2C proceeds to step S110, and calculates the pump power P2 at a cycle of 1 minute from the pump rated power of the cooling water pump and the pump operating state by the equation (2) in the calculation formula storage unit 2E. Then, the pump power P2 calculated in this one-minute cycle is integrated to obtain the amount of energy consumed per day (the amount of energy consumed per day before the energy saving measure) when the cooling water variable flow rate control is not performed.

  Then, the energy saving effect amount calculation unit 2C obtains, as an energy saving effect amount, the difference between the daily energy consumption after the energy saving measure obtained in step S106 and the daily energy consumption before the energy saving measure obtained in step S110. (Step S111), the obtained energy saving effect amount is sent to the energy saving effect amount display unit 2D. The energy saving effect amount display unit 2D converts the energy saving effect amount from the energy saving effect amount calculation unit 2C into a monetary amount for a long period, such as a month or year, and displays it (step S112).

  The processing operation described above has been described for the case where the energy saving effect amount calculation unit 2C is designated with the establishment A and the instruction for calculating the energy saving effect amount is given. In the same way, the energy saving effect amount is calculated and displayed.

[When the data of “1st type measurement value (heat source cold water measurement temperature)” has not been accumulated]
When an instruction to calculate the energy saving effect amount is given by specifying another business location, the data of “first type measurement value (heat source cold water measurement temperature)” of the business location is not accumulated in the collected data storage unit 2A There may be cases. In this case, the energy saving effect amount calculation unit 2C checks whether or not the data type of the priority order 2 registered in the data type storage unit 2B is stored in the collected data storage unit 2A. (Step S103).

  Here, the data type of the priority order 2 is “second type measured value (cooling tower cooling water measured temperature)”, and if data of this data type is accumulated in the collected data storage unit 2A (YES in step S103) ), The energy saving effect amount calculation unit 2C calculates the heat source load factor by the calculation formula 2 in the calculation formula storage unit 2E, and stores the calculation formula from the calculated heat source load factor, the pump rated power of the cooling water pump, and the pump operation state. One day when it is assumed that the pump power P1 is calculated at a cycle of 1 minute and the pump power P1 calculated at a cycle of 1 minute is integrated to perform the cooling water variable flow control by the equation (1) in the part 2E. The amount of energy consumed (the amount of energy consumed per day after the energy saving measure) is obtained (step S107).

[When the data of “Type 2 measurement value (cooling tower cooling water measurement temperature)” has not been accumulated]
If the collected data storage unit 2A has not accumulated the “second-type measurement value (cooling tower cooling water measurement temperature)” data of the establishment, the energy saving effect amount calculation unit 2C is registered in the data type storage unit 2B. For the data type of priority 3, the data type is checked whether data of that data type is stored in the collected data storage unit 2A (step S104).

  Here, the data type of priority 3 is “set value (heat source cold water set temperature)”, and if the data of this data type is accumulated in the collected data storage unit 2A (YES in step S104), the energy saving effect amount The calculation unit 2C calculates the heat source load factor by the calculation formula 3 in the calculation formula storage unit 2E, and the calculation formula storage unit 2E uses the calculated heat source load factor, the pump rated power of the cooling water pump, and the pump operating state ( 1) The pump power P1 is calculated at a one-minute cycle according to the equation (1), and the pump power P1 calculated at the one-minute cycle is integrated to assume the amount of energy consumed per day when it is assumed that the cooling water flow rate control is performed ( The amount of energy consumed per day after the energy saving measure is obtained (step S108).

[When “Set value (heat source cold water set temperature)” data was not accumulated)
When the data of the “set value (heat source cold water set temperature)” of the establishment is not accumulated in the collected data storage unit 2A, the energy saving effect amount calculation unit 2C has the priority order registered in the data type storage unit 2B. For the data type 4, it is checked whether data of that data type is stored in the collected data storage unit 2 </ b> A (step S <b> 105).

  Here, if the data type of priority 4 is “standard value (cold water standard temperature difference)” and data of this data type is accumulated in the collected data storage unit 2A (YES in step S105), the energy saving effect amount The calculation unit 2C calculates the heat source load factor by the calculation formula 4 in the calculation formula storage unit 2E, and the calculation formula storage unit 2E uses the calculated heat source load factor, the pump rated power of the cooling water pump, and the pump operating state ( 1) The pump power P1 is calculated at a one-minute cycle according to the equation (1), and the pump power P1 calculated at the one-minute cycle is integrated to assume the amount of energy consumed per day when it is assumed that the cooling water flow rate control is performed ( The amount of energy consumed per day after the energy saving measure is obtained (step S109).

  In addition, when the data of the “standard value (cold water standard temperature difference)” of the establishment is not accumulated in the collected data storage unit 2A, the energy saving effect amount calculation unit 2C is unable to calculate the energy saving effect amount. Judgment is made (step S113), and the judgment result is sent to the energy saving effect amount display unit 2D. The energy saving effect amount display unit 2D displays that the energy saving effect amount cannot be calculated in response to the determination result of the energy saving effect amount calculation unit 2C.

  Thus, in the present embodiment, when the data of “first type measurement value (heat source cold water measurement temperature)” is not accumulated in the collected data storage unit 2A, “second type measurement value (cooling tower) If the energy saving effect amount is calculated using the “cooling water measurement temperature” data and the “second type measurement value (cooling tower cooling water measurement temperature)” data is not accumulated, the “setting value (heat source cold water) If the energy saving effect amount is calculated using the “set temperature)” data and the “set value (heat source cold water set temperature)” data is not accumulated, the “standard value (cold water standard temperature difference)” data is used. The amount of energy saving effect is calculated by using this, and the applicable business establishments (bases) capable of automatically calculating the energy saving effect amount are expanded.

  In the above-described embodiment, the energy saving effect amount display unit 2D converts the energy saving effect amount from the energy saving effect amount calculation unit 2C into a long-term amount of month or year, and displays it. The energy saving effect amount may be converted into an amount and displayed. FIG. 4 shows an example in which the daily energy saving effect amount is converted into an amount and displayed. In this example, the amount of energy consumed (pump power P1, P2) before and after the energy saving measure obtained at a cycle of 1 minute is displayed together with the energy saving effect amount.

  In the above-described embodiment, the energy saving effect amount is obtained when the cooling water variable flow rate control is performed as an example of the energy saving operation method. However, it goes without saying that the embodiment is not limited to the cooling water variable flow rate control. Yes. For example, the present invention can be applied to an example in which room temperature is used when obtaining the energy saving effect amount. In this case, since the room temperature is controlled to the set temperature by feedback control, even if the measured value of the room temperature is not obtained, if the measured data of the set value of the room temperature control (room temperature set value log) is obtained, it is practical The automatic prediction accuracy of the standard energy saving effect can be maintained. In addition, when neither the measured value of the room temperature nor the measured data of the set value of the room temperature control is obtained, the standard value of the room temperature is used.

  The apparatus and method for calculating the energy saving effect amount of the present invention includes a plurality of establishments (bases) as an apparatus and method for calculating the difference between the energy consumption amount before the energy saving measure and the energy consumption amount after the energy saving measure as the energy saving effect amount. It can be used in various systems such as an air-conditioning control system constructed by connecting the computers via a network.

  DESCRIPTION OF SYMBOLS 1 ... Air-conditioning equipment, 2 ... Energy-saving effect amount calculation apparatus, 2A ... Collected data storage part, 2B ... Data type memory | storage part, 2C ... Energy-saving effect amount calculation part, 2D ... Energy-saving effect amount display part, 2E ... Calculation formula memory | storage part, DESCRIPTION OF SYMBOLS 3 ... Heat source machine (refrigerator), 4 ... Pump, 5 ... Out header, 6 ... Outbound pipe line, 7 ... Load equipment, 8 ... Return water line, 9 ... Return header, 10 ... Bypass pipe, 11 ... Cooling tower, 11-1 ... cooling tower fan, 11-2 ... cooling water pump, 100 ... A office (A base), 200 ... air conditioning operation management company.

Claims (8)

In the energy saving effect amount calculation device that calculates the difference between the energy consumption amount before the energy saving measure and the energy consumption amount after the energy saving measure as the energy saving effect amount,
A data type storage means for storing a plurality of types of data registered by setting priorities as data types that can be used to calculate the energy saving effect amount;
Energy saving effect amount calculating means for calculating the energy saving effect amount using data of the highest priority data type that is actually obtained as usable data among the plurality of registered data types. An energy-saving effect amount calculation device comprising: In the energy-saving effect amount calculation apparatus described in Claim 1,
The data type storage means includes
Storing measured values and set values as the plurality of types of data;
The set value has a lower priority than the measured value. An energy-saving effect amount calculation device. In the energy-saving effect amount calculation apparatus described in Claim 1,
The data type storage means includes
Store measured values, set values and standard values as the plurality of types of data,
The set value has a lower priority than the measured value, and the standard value has a lower priority than the set value. In the energy-saving effect amount calculation apparatus described in any one of Claims 1-3,
An energy saving effect amount calculation device comprising: an energy saving effect amount display means for displaying the calculated energy saving effect amount in terms of money. In the energy saving effect amount calculation method for calculating the difference between the energy consumption amount before the energy saving measure and the energy consumption amount after the energy saving measure as the energy saving effect amount,
A data type registration step for registering a plurality of data types in a memory with a priority order as data types that can be used for calculating the energy saving effect amount,
An energy saving effect amount calculating step of calculating the energy saving effect amount using data of the highest priority data type that is actually obtained as usable data among the plurality of registered data types. A method for calculating an energy saving effect amount, comprising: In the energy-saving effect amount calculation method described in Claim 5,
The data type registration step includes:
The measured value and the set value are registered as the plurality of types of data, and the priority order of the set value is registered lower than the priority order of the measured value. In the energy-saving effect amount calculation method described in Claim 5,
The data type registration step includes:
The measurement value, setting value, and standard value are registered as the plurality of types of data, with the setting value priority order lower than the measurement value priority order, and the standard value priority order lower than the setting value priority order. A method for calculating an energy saving effect amount. In the energy-saving effect amount calculation method described in any one of Claims 5-7,
An energy saving effect amount calculation method comprising: an energy saving effect amount display step for displaying the calculated energy saving effect amount in terms of money.

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