JP4837388B2 - Environmental load reduction calculation system, environmental load reduction calculation method, and environmental load reduction calculation program - Google Patents

Description

  The present invention relates to an environmental load reduction amount calculation system, an environmental load reduction amount calculation method, and an environmental load reduction amount calculation program.

Techniques for evaluating and managing environmental loads associated with energy consumption have been proposed. For example, in Patent Document 1, by constructing a city management system in which a city facility using a utility communicates and notifies the utility user of the utility consumption information as an environmental load amount to the facility user or the facility user and the utility supply facility, Under the objective of making it possible for urban facility users to be aware of the environmental impact of facility use, optimizing utility supply facilities based on these environmental impact information, and reducing the environmental impact of the city as a whole. Such a technique is disclosed. That is, in an urban system comprising utility supply facilities such as electricity and gas, city facilities that receive and supply utilities from the utility supply facilities, and users of the city facilities, Means for measuring each utility consumption required for maintenance and management, means for converting each measured utility consumption into a unified evaluation index as an environmental load, and the obtained environmental load to facility users and necessary Accordingly, there is provided an environmental load management system having means for transmitting to the utility supply facility side accordingly.
JP-A-7-129659

  By the way, there is a need to reduce the burden on the environment in terms of energy consumption, such as the need to reduce carbon dioxide emissions. Today, it is necessary to objectively evaluate the amount of environmental burden reduction associated with energy consumption. Become. Therefore, at present, for example, consumers can know their own power consumption based on the value of the meter reading slip by the meter reading of the electric power company, so compare the current month's value of the meter reading slip with the value of the same month of the previous year, and the environment You will know the amount of load reduction. If it has not been reduced, that is, if the value of the amount of environmental load reduction becomes negative, efforts will be made to reduce the environmental load on its own will.

  However, energy consumption such as electric power also depends on external factors such as temperature. For example, if the temperature of winter this year is much lower than last winter, the use of heating appliances will increase, energy consumption will increase, and the environmental burden reduction will probably be negative. Therefore, in order to objectively evaluate the environmental load reduction amount, the environmental load reduction amount must be calculated in consideration of such external factors as temperature. If such an objective and quantitative environmental load reduction amount is calculated for each consumer, the energy supply company side, for example, provides customer services such as giving service points according to the environmental load reduction amount to consumers. On the other hand, the customer side can objectively grasp the increase or decrease in the environmental load accompanying its own energy consumption, and it should be a more specific guideline for future environmental load reduction targets. Can do. However, at present, there is no technique for calculating the environmental load reduction amount in consideration of external factors such as temperature, and development has been desired.

  Accordingly, the present invention has been made in view of the above-mentioned problems, and can reduce the environmental load that can objectively and quantitatively calculate the environmental load reduction amount for each consumer while also taking into account the external factor of temperature. The main purpose is to provide an amount calculation system, an environmental load reduction calculation method, and an environmental load reduction calculation program.

  An environmental load reduction amount calculation system of the present invention that solves the above problems is an environmental load reduction amount calculation system that calculates an environmental load reduction amount performed by a customer who receives energy supply from an energy supply company. The actual energy usage data for the customer is obtained from the meter reading meter, and the actual energy usage registration unit for storing the actual energy usage data in the meter reading database, and the evaluation target date and the past The actual energy usage data for each temperature is stored by acquiring the actual energy usage data for the comparison date and calculating the difference between the two by calculating the actual energy usage change data. From the energy standard usage database, the evaluation date and the past comparison date In the energy standard change amount calculation unit that calculates the energy standard use change amount by acquiring energy standard use amount data and calculating the difference between the two, the actual energy change amount calculation unit and the energy standard change amount calculation unit By calculating the difference between the calculated actual energy use change amount and the standard energy use change amount, the environmental load reduction amount for the customer is calculated, and the calculated environmental load reduction amount is calculated in the customer information database. And an environmental load reduction amount storage unit stored in the storage.

  The environmental load reduction amount calculation system acquires the temperature data of the evaluation target date and the past comparison target date from an input / output device, stores the temperature data in a temperature database, and the evaluation target from the temperature database. A temperature change amount calculation unit that calculates temperature change amount by obtaining temperature data of a day and the past comparison date, and calculating a difference between the two, and the environmental load in the environmental load reduction amount calculation unit The amount of reduction is the sign of the value of the actual energy use change calculated by the energy actual change calculation part, and the sign of the value of the energy standard use change calculated by the energy standard use change calculator. It is preferable that the temperature change amount calculated by the temperature change amount calculation unit is calculated according to whether the temperature change amount is positive or negative.

  The environmental load reduction amount calculation system stores the standard energy usage data for each temperature stored in the standard energy usage database in a plurality of patterns classified according to the characteristics of the consumer. If there is, it is preferable.

  In the environmental load reduction amount calculation system, the energy supplied from the energy supply company to the consumer includes a plurality of different types of energy, and the actual energy usage registration unit is provided in the consumer. In addition, the actual energy usage data for each of the plurality of energies in the consumer is obtained from the meter reading meter for each of the plurality of different types of energy, and the actual energy usage data for each of the plurality of energies is stored in the meter reading database. The actual energy change amount calculation unit stores actual energy usage data for each of the plurality of energies from the evaluation target date and the past comparison target date from the meter reading database, and calculates a difference between the two. By calculating the actual energy use change amount for each of the plurality of energy The energy standard change amount calculation unit, for each temperature, and from the energy standard usage database storing the energy standard usage data for each of the plurality of energy, the evaluation target date and the past comparison target date, Obtaining energy standard usage data for each of a plurality of energies, calculating an energy standard usage change for each of the plurality of energies by calculating a difference between the two, and calculating the environmental load reduction amount, the actual energy change By calculating the difference between the actual energy use change amount and the energy standard use change amount for each of the plurality of energies calculated by the amount calculating unit and the energy standard change amount calculating unit, The environmental load reduction amount is calculated and calculated by the environmental load reduction amount calculation unit. The environmental load reduction amount converted into the carbon dioxide emission amount for each of the plurality of energy is calculated by multiplying the environmental load reduction amount for each of the plurality of energy by the carbon dioxide emission coefficient of each energy. By calculating the sum of the environmental load reduction amount converted into the carbon dioxide emission amount for each of the plurality of energy values calculated by the converted environmental load reduction amount calculation unit and the converted environmental load reduction amount calculation unit. And an energy integrated environmental load reduction amount calculation unit that calculates the energy integrated environmental load reduction amount in the customer and stores the calculated energy integrated environmental load reduction amount in the customer information database. Is preferred.

  The environmental load reduction amount calculation system executes an output process (by a functional unit such as an output processing unit) that outputs information on the environmental load reduction amount or energy integrated environmental load reduction amount stored in the customer information database to an output interface. It is preferable to do so.

  Further, the environmental load reduction amount calculation method of the present invention is a method of performing the environmental load reduction amount calculation for calculating the environmental load reduction amount performed by a customer who receives energy supply from an energy supply company using a computer, The computer acquires the actual energy usage data of the customer from the meter reading meter provided in the consumer, stores the actual energy usage data in the meter reading database, and from the meter reading database, the evaluation target date and the past From the energy standard usage database that stores the energy actual usage data for each temperature by obtaining the actual energy usage data on the comparison target date, calculating the difference between the two, calculating the actual energy usage change amount, Obtain energy standard usage data of the evaluation target date and the past comparison target date, The energy standard usage change amount is calculated by calculating a difference between persons, and the energy actual usage change amount and the energy standard usage change calculated by the energy actual change amount calculation unit and the energy standard change amount calculation unit are calculated. By calculating the difference from the amount, the environmental load reduction amount for the customer is calculated, and the calculated environmental load reduction amount is stored in a customer information database.

  The environmental load reduction amount calculation program of the present invention is a program for causing a computer to execute an environmental load reduction amount calculation method for calculating an environmental load reduction amount performed by a customer who receives energy supply from an energy supply company. Acquiring actual energy usage data for the customer from a meter reading meter provided in the consumer, storing the actual energy usage data in the meter reading database, and from the meter reading database, the evaluation target date and the past The actual energy usage data is obtained by acquiring the actual energy usage data of the comparison date of the day, and calculating the difference between the two, and storing the standard energy usage data for each temperature From the database, the energy of the evaluation date and the past comparison date -Obtaining standard usage data and calculating the difference between the two, calculating the energy standard usage change, and calculating the actual energy change calculation unit and the energy standard change calculation unit, Calculating the environmental load reduction amount for the customer by calculating the difference between the actual energy use change amount and the energy standard use change amount, and storing the calculated environmental load reduction amount in the customer information database; , Including.

  In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the embodiments of the present invention and the drawings.

  According to the present invention, it is possible to objectively and quantitatively calculate an environmental load reduction amount for each consumer while taking into consideration an external factor such as temperature.

--- First embodiment, system configuration ---
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a network configuration diagram including an environmental load reduction amount calculation system (hereinafter referred to as “system” as appropriate) 10 in the first embodiment. The system 10 of this embodiment is an environmental load reduction amount calculation system 10 that calculates an environmental load reduction amount performed by a customer 12 who receives energy, that is, power supply from an electric power company that is an energy supply company. In order to realize the function of executing the load reduction amount calculation method, a program stored in a program database such as a rewritable memory is read into the memory and executed by the CPU as the arithmetic unit. The system 10 also includes input / output devices such as various keyboards, buttons, and displays that are generally provided in computer devices. The system 10 is provided in the electric power company in this embodiment, but may be provided in another organization or place and managed by, for example, a specialized management company.

  Further, the system 10 is connected to a weather information providing server 16 provided in a weather meter providing facility such as a local meteorological observatory or a private weather information company through a network 14 and an electric power meter provided in each customer 12. It has a communication department that handles data exchange between them. The I / O unit performs data buffering and various mediation processes between various function units and communication units described later of the system 10. The meteorological information providing server 16 records observation temperature data of an area where each customer 12 of the energy supply company exists. Of the constituent elements of the system 10, those other than various functional units and various databases described later are not shown.

  In this embodiment, the network 14 that connects the system 10 to the meter-reading meter 20 and the weather information providing server 16 of each customer 12 includes, for example, the Internet, a LAN, an ATM line, a WAN, a public network, a dedicated network, a power line network, Various devices such as a wireless network and a serial interface communication line can be used. Further, if a virtual dedicated network technology such as VPN (Virtual Private Network) is used, communication with improved security is established when the Internet is adopted. As a modification, the meter reading meter of each customer 12 does not necessarily have to be connected to the network 14. In that case, the actual energy usage amount data from the meter-reading meter may be acquired by the energy actual usage amount registering unit 18 (to be described later) of the system 10 via a handy terminal held by the meter reader.

  Next, various function units configured and held by the system 10 based on, for example, a program will be described.

  The system 10 acquires energy (electric power) actual usage data Q (kWh) in the customer 12 from the meter-reading meter 20 provided in the customer 12, and reads the energy actual usage data Q (kWh) in the meter reading database. The energy actual use amount registration unit 18 to be stored is provided. More specifically, the energy actual usage data Q (kWh) indicating the actual power usage in the consumer 12 measured by the meter-reading meter 20 provided for each consumer 12 is It is transmitted from the meter-reading meter 20 of the customer 12 via the network 14, and the actual energy usage registration unit 18 receives this, organizes it for each customer 12, and stores it in the meter-reading database 22. In this embodiment, “every fixed time” means every day, and therefore, the environmental load reduction amount can be evaluated on a daily basis.

  Further, in this embodiment, the system 10 acquires daily temperature data ThA (° C.) (A indicates a region) from the weather information server via the network 14 and the input / output device, and stores it in the temperature database 24. A temperature data registration unit 26 is provided. In the present embodiment, for example, temperature data for a plurality of regions such as Tokyo, Yokohama, Hiratsuka, and the like are acquired and stored (see FIG. 6).

Further, the system 10 obtains the temperature data ThA, ThA ′ (° C.) from the temperature database 24 and calculates the difference between the evaluation date and the past comparison date of the formula (1). As described above, a temperature change amount calculation unit 28 that calculates the temperature change amount ΔThA is provided.
ΔThA = ThA−ThA ′ (1)

  In the present embodiment, the daily temperature data ThA (° C.) registered in the temperature database 24 is the average daily temperature data for each day. It is good also as receiving from the weather information provision server 16 in the form of average temperature data originally, or receiving the temperature data measured from the weather information provision server 16 at any time, for example, every hour, and the temperature data registration unit 26 averages it. The value calculation process may be executed to calculate the average temperature data ThA (° C.).

  Further, the evaluation target date is a date for calculating the environmental load reduction amount between the comparison target dates in the past, and the system 10 of the present embodiment can calculate the environmental load reduction amount for any evaluation target date. it can. Therefore, for example, the administrator of the system 10 inputs a processing request for calculating the environmental load reduction amount for the desired consumer 12 for the desired customer 12 from the input / output device, and the system 10 responds accordingly to the environment 10 It is assumed that the load reduction amount is calculated, and the calculation result is stored in a customer information database described later and is output to the input / output device.

  In the present embodiment, the past comparison target day is the same day of the same month of the previous year of the evaluation target day. Of course, a year two years ago or more may be used as the comparison date, or the same date of the previous year may be used as the comparison date.

Further, the system 10 obtains the actual energy usage data Q and Q ′ (kWh) of the evaluation target date and the past comparison target date from the meter reading database 22 and calculates the difference between the two, thereby obtaining the formula (2 ), An actual energy change amount calculation unit 30 for calculating the actual energy use change amount ΔQ is provided.
ΔQ = Q−Q ′ (2)

The actual energy use change ΔQ, which is the difference between the actual energy usage data Q (kWh) on the evaluation target date and the actual energy use Q ′ (kWh) on the comparison target date, is the difference between the evaluation target date and the previous year. Since the difference in temperature conditions is not reflected, it cannot be said that the amount of environmental load reduction is sufficiently objective as it is. Therefore, in this embodiment, the temperature conditions in both years are considered as follows.

Further, the system 10 reads the energy standard usage data Qt, Qt ′ () from the evaluation target date and the past comparison target date from the energy standard usage data database 32 storing the energy standard usage data Qt (kWh) for each temperature. kWh) is obtained, and by calculating the difference between the two, an energy standard change amount calculation unit 34 that calculates the energy standard use change amount Qk is provided as in Expression (3).
Qk = Qt−Qt ′ (3)

  As shown in FIG. 8 to be described later, the energy standard usage data for each temperature is, for example, a standard for each temperature obtained by calculating an average value over a plurality of years from past actual energy usage data. Model of energy consumption. In the example of FIG. 8, in the case of the customer 12 corresponding to the customer 12 characteristic code (described later) 1, on the day when the average daily temperature is 0 ° C., the energy of 16 kWh is standard. Consume. In FIG. 8, it should be noted that the value of the energy standard usage data Qt (kWh) is large when the temperature is very low and when the temperature is very high around 15 to 16 ° C. That is, simply speaking, a consumer 12 having any characteristic has a large standard energy usage in winter and summer and a small amount in spring and autumn in a cycle of one year.

  In the system 10 of the present embodiment, the energy standard usage data Qt (kWh) for each temperature stored in the energy standard usage database 32 is classified for each characteristic of the customer 12 and stored in a plurality of patterns. Is done. The characteristics of the consumer 12 include, for example, the size of the house of the consumer 12, the family structure, the contract content, and the like. For example, it is generally assumed that the larger the scale of a house, the greater the energy consumption even at the same temperature. As shown in FIG. 8, a pattern of energy standard usage data Qt (kWh) is stored in association with each customer 12 characteristic code for distinguishing the characteristics of the customer 12.

  Further, the system 10 calculates the difference between the actual energy use change amount ΔQ and the energy standard use change amount Qk calculated by the actual energy change amount calculation unit 30 and the standard energy change amount calculation unit 34. The environmental load reduction amount calculation unit 38 that calculates the environmental load reduction amount E (kWh) in the customer 12 and stores the calculated environmental load reduction amount in the customer information database 36 is provided.

  More specifically, in the system 10 of the present embodiment, the environmental load reduction amount E (kWh) in the environmental load reduction amount calculation unit 38 is the actual energy amount calculated by the actual energy change amount calculation unit 30. The positive / negative value of the use change amount ΔQ, the positive / negative value of the energy standard use change amount Qk calculated by the energy standard change amount calculation unit 34, and the temperature change amount calculated by the temperature change amount calculation unit 28. The calculation is performed for each case depending on whether the value of ΔThA is positive or negative.

That is, as shown in Equation 4, Δq is calculated by taking the difference between the absolute value of the actual energy usage change amount ΔQ and the absolute value of the energy standard usage change amount | Qk.
Δq = | ΔQ | − | ΔQk | Equation (4)

  That is, Δq is a value indicating a difference between an actual energy use change amount in the customer 12 and an energy standard use change amount that is a model value having the characteristics of the customer 12 characteristic code corresponding to the customer 12. is there. Next, the sign of the value of the actual energy use change ΔQ calculated by the actual energy change calculator 30 and the value of the standard energy use change Qk calculated by the standard energy use change calculator First, it is examined in which case environmental load reduction has been achieved by considering positive and negative and positive / negative of the value of the temperature change ΔThA calculated by the temperature change calculator 28.

  FIG. 2 is a graph for explaining the relationship between the positive / negative of the temperature change amount ΔThA and the positive / negative of the energy standard usage change amount Qk. First, FIG. 2A shows a case where ThA ′ <ThA, that is, ΔThA> 0, in other words, a case where the average temperature is higher on the evaluation target day of this year than on the comparison target day of the previous year. In summer, that is, on the side where the temperature on the horizontal axis is higher, if the temperature is higher in the current year than in the previous year, the current year is hotter, so the energy standard usage change amount Qk increases. Conversely, in winter, that is, on the side where the temperature on the horizontal axis is lower, if the temperature is higher in the current year than in the previous year, the current year is warmer, so the energy standard usage change amount Qk decreases. FIG. 2B shows the opposite case, where ThA ′> ThA.

  Next, FIG. 3 is a graph for explaining the relationship between the sign of the energy standard use change amount Qk and the sign of the value of the actual energy use change amount ΔQ. First, FIG. 3A shows a case where Qk> 0, that is, a case where the standard energy usage amount is assumed to be larger on the evaluation target date of this year than on the comparison target date of the previous year. For example, this is the case in the summer when the average temperature ThA is higher than last year and in the winter when the average temperature ThA is lower than last year. In this case, when Qk> ΔQ, that is, Δq <0, that is, when the actual energy use change amount is smaller than the energy standard use change amount, standard energy (which is naturally expected if the factor of temperature is considered) Since the increase in the actual usage amount was smaller than the increase in the usage amount, it is evaluated that the environmental load reduction was achieved. Conversely, when Qk> ΔQ, it is evaluated that environmental load reduction has not been achieved. FIG. 3B shows the opposite case where Qk <0.

The above is summarized as shown in the table of FIG. The rightmost column in the table of FIG. 4, that is, the case where the value of “environmental load reduction evaluation” is ◯ is a case where the environmental load reduction is achieved. In the present embodiment, the environmental load reduction amount E is calculated only when the environmental load reduction is achieved in this way. E is obtained by using Δq as shown in Equation 5A and Equation 5B.
E = −Δq (ΔQ> 0, Qk> 0) (5A)
E = Δq (ΔQ <0, Qk <0) Equation (5B)

  The environmental load reduction amount E calculated in this way is an objective and quantitative index that takes into account the factor of temperature by using data called energy standard usage, and achieves the reduction of the environmental load of the customer 12. It can be defined as indicating the degree. The calculated environmental load reduction amount E is not only stored in the customer information database 36 but may be output to the input / output device and used for customer information management or the like.

  The above functional units included in the system 10 may be realized as hardware, or may be realized as a program stored in an appropriate storage device such as a memory or an HDD (Hard Disk Drive). In this case, the CPU reads the corresponding program from the storage device into the memory in accordance with the execution of the program and executes it.

--- Database structure ---
Next, the data structure stored in the database used in the system 10 of this embodiment will be described. FIG. 5 shows actual energy usage data stored in the meter reading database 22. The meter reading database 22 is a database for storing the actual energy usage data acquired by the actual energy usage registration unit 18 from the meter meter 20 of the consumer 12, and the actual energy usage data is, for example, the customer 12 number as a key. In addition, it is a collection of records that relate the actual electricity usage per day.

  FIG. 6 shows temperature data stored in the temperature database 24. The temperature database 24 is a database that stores temperature data that the temperature data registration unit 26 acquires from the weather information providing server 16 via the input / output device, and the stored temperature data is, for example, Tokyo, Yokohama, Hiratsuka, and the like. It is a collection of records containing the average daily temperature by region.

  FIG. 7 shows each data stored in the customer information database 36. FIG. 7 (a) shows the association of the region of the temperature data with the smaller region customer 12 region code included in each region. FIG. 7B shows the data associated with the customer 12 number, the customer 12 region code, and the customer 12 characteristic code. FIG. 7C shows the environmental load reduction amount calculation unit 38. It is a figure which shows each data structure example of the data which linked | related the calculated environmental load reduction amount E with the consumer 12 number.

  FIG. 8 shows energy standard usage data stored in the energy standard usage database 32. The energy standard usage data is classified for each customer 12 characteristic code, and is a set of records associated with a plurality of patterns, that is, three patterns of energy standard usage in the example of FIG.

  The method of dividing each functional unit and database is merely an example, and may not necessarily be the same as that of the present embodiment, and various modifications are possible. In addition, the configuration of which data is stored in each database is not necessarily the same as that of the present embodiment, and various modifications can be made.

--- Actual processing ---
Hereinafter, the actual procedure of the environmental load reduction calculation method in the present embodiment will be described with reference to the drawings. Various operations corresponding to the environmental load reduction amount calculation method described below are realized by a program that the environmental load reduction amount calculation system 10 reads into the memory and executes. And this program is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.

--- Processing flow example ---
FIG. 9 is a flowchart showing an example of an implementation procedure of the environmental load reduction amount calculation method of the present embodiment. Here, both the reduction of environmental load is calculated for the customer 12 from the comparison of the electricity consumption Q (kWh) on a certain evaluation target day and the electricity usage Q '(kWh) on the same week of the same month of the previous year. An example will be described.

  First, in the system 10, the actual energy usage registration unit 18 acquires the actual energy usage data Q (kWh) of the customer 12 from the meter meter 20 provided in the customer 12 and stores it in the meter reading database 22. (S100).

  Next, in the system 10, the temperature data registration unit 26 acquires the average temperature data ThA (° C.) for each region from the weather information providing server 16, and stores it in the temperature database 24 (S102). In this embodiment, steps S100 and S102 are automatically executed once every day, and the order of both is not the same.

  Next, in the system 10, the temperature change calculation unit 28 acquires the temperature data ThA, ThA ′ on the evaluation target date and the comparison target date from the temperature database 24, while the actual energy change calculation unit 30 receives the meter reading database 22. To obtain actual energy usage data Q and Q ′ of the evaluation target date and the comparison target date (S104).

  Next, the system 10 calculates the temperature change amount ΔThA by calculating the difference between the acquired temperature data ThA and ThA ′ on the evaluation target date and the comparison target date (S106).

  Next, in the system 10, the actual energy change calculation unit 30 calculates the actual energy use change ΔQ by calculating the difference between the acquired actual energy use data Q and Q ′ of the evaluation target date and the comparison target date. (S108).

  Next, in the system 10, the energy standard change amount calculation unit 34 acquires the energy standard usage data Qt and Qt ′ of the evaluation target date and the comparison target date from the energy standard usage amount database 32 (S110). In the present embodiment, it is assumed that the energy standard usage data Qt and Qt ′ are already registered in the data structure example as shown in FIG.

  Next, in the system 10, the energy standard change amount calculation unit 34 calculates the energy standard use change amount Qk by calculating the difference between the acquired energy standard use amount data Qt and Qt ′ of the comparison target date. (S112).

  Next, in the system 10, the environmental load reduction amount calculation unit 38 calculates a difference Δq between the calculated actual energy use change amount ΔQ and the calculated energy standard use change amount Qk (S114).

  Next, in the system 10, the environmental load reduction amount calculation unit 38 calculates the actual energy change calculation unit 30 from the difference Δq between the calculated actual energy use change ΔQ and the calculated standard energy use change Qk. The sign of the value of the actual energy use change ΔQ calculated in step S4, the sign of the value of the energy standard use change Qk calculated by the standard energy change calculator 34, and the temperature change calculator 28 It is evaluated whether or not the environmental load has been reduced, depending on whether the value of the calculated temperature change amount ΔThA is positive or negative (S116).

  If it is determined in step S116 that the environmental load has not been reduced, the process ends. If it is determined that the environmental load has been reduced, the environmental load reduction amount calculation unit 38 calculates the environmental load reduction amount E and stores it in the customer information database 36 (S118).

  According to the first embodiment as described above, it is possible to objectively and quantitatively calculate the environmental load reduction amount for each consumer 12 while taking into account the external factor of temperature. If such an objective and quantitative environmental load reduction amount is calculated for each customer 12, the energy supply company gives, for example, a service point corresponding to the environmental load reduction amount to the customer 12, etc. It can be used for customer service, and on the other hand, the customer 12 side can objectively grasp the increase and decrease of the environmental load accompanying its own energy consumption, and more specific guidelines for future environmental load reduction targets It can be.

--- Second embodiment, system configuration ---
Next, a second embodiment of the present invention will be described with reference to the drawings. Constituent elements substantially similar to those of the first embodiment are denoted by the same reference numerals in the respective drawings. Further, description of elements substantially similar to those of the first embodiment is omitted. FIG. 10 is a configuration diagram of the network 14 including an environmental load reduction amount calculation system (hereinafter referred to as “system” as appropriate) 40 in the second embodiment. The system 40 of the present embodiment is an environmental load reduction that calculates the environmental load reduction amount performed by a customer 12 who receives two different types of energy supply, that is, electric power and gas from a plurality of energy supply companies, that is, an electric power company and a gas company. This is a quantity calculation system 40.

  In this embodiment, the system 40 is provided and managed mainly in a specialized energy management company, but the power meter system 40 and the gas company system 40 also have their meter reading databases 42 and 44, that is, the electric meter reading database 42 and A gas meter reading database 44 is provided and the like, and the environment load reduction amount calculation system 40 is configured in cooperation as a whole. The customer 12 is provided with an electric meter meter 20 and a gas meter meter 46, both of which are connected to the system 40 via the network 14.

  Subsequently, various functional units configured and held by the system 40 based on a program, for example, will be described with respect to differences from the first embodiment.

The actual energy usage registration unit 18 is provided in the consumer 12 from the meter-reading meters 20 and 46 for the plurality of different types of energy provided in the consumer 12, that is, the electric meter-reading meter 20 and the gas meter-reading meter 46. The actual energy usage data for each of the plurality of energies, that is, the actual electricity usage data Q (kWh) and the actual gas usage data P (m ³ ) are obtained, and the actual electricity usage data is stored in the electricity company system 40 as electricity. The actual gas usage data is stored in the meter reading database 42 in the gas meter reading database 44 in the gas company system 40. Here, it should be noted that the actual gas usage data P is different in unit from the actual electricity usage data Q.

The actual energy change amount calculation unit 30 calculates, from the electric meter reading database 42 and the gas meter reading database 44, the electric actual usage data Q and Q ′ and the actual gas usage data P, the evaluation date and the past comparison date. By obtaining P ′ and calculating the difference between the two target dates, respectively, the actual energy use change amount for each of the plurality of energies, that is, the actual electricity use change amount ΔQ and the actual gas use amount as shown in Equation 6A and Equation 6B. A change amount ΔP is calculated.
ΔQ = Q−Q ′ (6A)
ΔP = P−P ′ (6B)

The energy standard change amount calculation unit 34 is based on an energy standard use amount database 32 that stores energy standard use amount data for each temperature and each of the plurality of energies, that is, electric standard use amount data Qt and gas standard use amount data Pt. By obtaining the electric standard usage data Qt, Qt ′ and the gas standard usage data Pt, Pt ′ and calculating the difference Qk, Pk between the evaluation target date and the past comparison target date, As shown in 7A and 7B, the energy standard usage change amount Qk, that is, the electrical standard change amount and the gas standard change amount Pk for each of the plurality of energies is calculated.
Qk = Qt−Qt ′ (7A)
Pk = Pt−Pt ′ (7B)

Here, the standard gas usage data for each temperature is as shown in FIG. 15 described later, and is the same as the electrical standard usage data shown in FIG.

  The environmental load reduction amount calculation unit 38 calculates the difference between the actual electric use change amount and the electric standard use change amount calculated by the actual energy change amount calculation unit 30 and the energy standard change amount calculation unit 34, and the actual gas use amount. By calculating the difference between the change amount and the gas standard use change amount, the environmental load reduction amount for each of the plurality of energy, that is, the electric environmental load reduction amount E1 (kWh) and the gas environmental load reduction amount E2 (m3) are obtained. Calculate and store in the customer information database 36. Moreover, you may output to an input / output device. Here, it should be noted that the electrical environmental load reduction amount E1 is different in unit from the gas environmental load reduction amount E2.

  More specifically, in the system 40 of the present embodiment, the electrical environmental load reduction amount E1 and the gas environmental load reduction amount E2 in the environmental load reduction amount calculation unit 38 are calculated by the energy actual change amount calculation unit 30. The positive and negative values of the actual electric usage change ΔQ and the actual gas usage change ΔP, and the electric energy standard usage change Qk and the gas energy standard usage change Pk calculated by the energy standard usage change calculator The calculation is performed for each case according to the sign of each value and the sign of the value of the temperature change ΔThA calculated by the temperature change calculator 28.

That is, as shown in Equation 8, Δq is calculated by taking the difference between the absolute value of the actual electric usage change ΔQ and the absolute value of the electric standard usage change Qk, and the absolute value of the actual gas usage change ΔP. And Δp is calculated by taking the difference between the absolute value of the gas standard usage change amount Pk.
Δq = | ΔQ | − | ΔQk | (8A)
Δp = | ΔP | − | ΔPk | (8B)

  That is, Δp is the difference between the actual gas usage change amount at the customer 12 and the standard gas usage change amount that is a model value having the characteristics of the customer 12 characteristic code corresponding to the customer 12, as in Δq. Is a value indicating Then, the sign of the value of the actual gas use change ΔP calculated by the actual energy change calculator 30 and the sign of the gas standard use change Pk calculated by the standard energy use change calculator. And a method of examining whether the environmental load reduction has been achieved in a case where the environmental change reduction is achieved according to whether the temperature change amount ΔThA calculated by the temperature change amount calculation unit 28 is positive or negative. This is the same as in the first embodiment.

That is, the table of FIG. 11 is obtained. The rightmost column in the table of FIG. 11, that is, the case where the value of “environmental load reduction evaluation” is ◯ is the case where the environmental load reduction is achieved. In the present embodiment, the environmental load reduction amount E2 is calculated only when the environmental load reduction is achieved in this way. E2 is obtained as shown in Equations 9A and 9B using Δp.
E = −Δp (ΔP> 0, Pk> 0) Formula (9A)
E = Δp (ΔP <0, Pk <0) (9B)

  The gas environmental load reduction amount E2 calculated in this way is an objective and quantitative index that takes into account the factor of temperature by using data such as the standard gas usage amount, like the electric environmental load reduction amount E1, It can be defined as indicating the degree of achievement of the house 12 in reducing the environmental load. The calculated gas environmental load reduction amount E2 is not only stored in the customer information database 36 together with the electric environmental load reduction amount E1, but may be output to the input / output device.

However, since the electrical environmental load reduction amount E1 (kWh) and the gas environmental load reduction amount E2 (m ³ ) are different from each other, they cannot be simply added together. Therefore, in the present embodiment, in order to further integrate and evaluate these different quantitative indexes, the following functional units are also provided.

  The system 40 of the present embodiment multiplies the electrical environmental load reduction amount E1 and the gas environmental load reduction amount E2 calculated by the environmental load reduction amount calculation unit 38 by the carbon dioxide emission coefficient of each energy, thereby And a converted environmental load reduction amount calculating section 48 for calculating the environmental load reduction amount converted into the carbon dioxide emission amount of each gas.

Specifically, carbon dioxide emission coefficient data recorded in advance as a data structure example as shown in FIG. 12 is acquired in appropriate storage means such as the temperature database 24, and the electrical environmental load reduction amount E1 and the gas environmental load reduction are obtained. By multiplying by the amount E2, the unit of both is converted into (kg-CO ₂ ), that is, carbon dioxide emission, and the environment converted into carbon dioxide emission for each of electricity and gas as shown in Equation 10A and Equation 10B. The load reduction amounts are ET1 and ET2.
ET1 = E1 × e (e: CO ₂ emission coefficient (kg / kwh) in electricity) Equation (10A)
ET2 = E2 × g (g: CO ₂ emission coefficient in gas (kg / m ³ )) ... Formula (10B)

Further, the system 40 calculates the sum of the environmental load reduction amount converted into the carbon dioxide emission amount of electricity and gas calculated by the converted environmental load reduction amount calculation unit 48, so that the customer 12 The energy integrated environmental load reduction amount ET (kg-CO ₂ ) is calculated, and an energy integrated environmental load reduction amount calculation unit 50 that stores the calculated energy integrated environmental load reduction amount in the customer information database 36 is provided.

  The energy integrated environmental load reduction amount ET calculated in this way is an integrated quantitative index regardless of the type of energy, and indicates the overall achievement degree of the customer 12 in reducing the environmental load. Can be defined. The calculated energy integrated environmental load reduction amount ET is not only stored in the customer information database 36 but may be output to an input / output device and used for customer information management or the like.

--- Database structure ---
Next, a data structure example of a data structure stored in a database used in the system 40 of this embodiment will be described. The description common to the first embodiment will be omitted, and only those specific to the second embodiment will be referred to. FIG. 12 shows carbon dioxide emission coefficient data stored in appropriate storage means such as the temperature database 24 as described above. Even if the type of energy and the same type of energy are different for each energy supplier, a carbon dioxide emission coefficient is registered for each energy supplier.

  FIG. 13 shows actual gas usage data corresponding to the actual energy (electricity) usage data in FIG. 5 and is stored in the gas meter reading database 44. For example, it is a set of records in which the actual gas usage per day is associated with the customer 12 number as a key.

  FIG. 14 is data associated with the customer 12 number, the customer area code, and the customer characteristic code corresponding to FIG. 7B, and is stored in the customer information database 36. FIG. 15 shows gas standard usage data stored in the energy standard usage database 32 corresponding to FIG. As with the electrical standard usage data, the standard gas usage data is classified for each customer characteristic code, and is a collection of records associated with a plurality of patterns (three patterns in the example of FIG. 15) of standard gas usage. ing.

  FIG. 16 corresponds to FIG. 7C, and is data in which the electrical environmental load reduction amount E1 and the gas environmental load reduction amount E2 calculated by the environmental load reduction amount calculation unit 38 are associated with the customer number. Stored in the database 36. FIG. 17 shows the demand for the environmental load reduction amounts ET1 and ET2 converted into carbon dioxide emissions of the electricity and gas calculated by the environmental load reduction amount calculation unit 38, and the energy integrated environmental load reduction amount ET obtained by adding them together. Data associated with the house 12 number and stored in the customer information database 36.

  The method of dividing each functional unit and database is just an example as in the first embodiment, and is not necessarily the same as that in the present embodiment, and can be variously modified. In addition, the configuration of which data is stored in each database is not necessarily the same as that of the present embodiment, and various modifications can be made.

--- Actual processing ---
Hereinafter, the actual procedure of the environmental load reduction calculation method in the present embodiment will be described with reference to the drawings. Various operations corresponding to the environmental load reduction amount calculation method described below are realized by a program that the environmental load reduction amount calculation system 40 reads into the memory and executes. And this program is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.

--- Processing flow example ---
FIG. 18 is a flowchart showing an example of an implementation procedure of the environmental load reduction amount calculation method of the present embodiment. As in the first embodiment, for the customer 12, the electricity usage amount Q (kWh) and the gas usage amount P (m ³ ) on a certain evaluation target day, and the electricity usage amount Q ′ ( An example of calculating the environmental load reduction amount from a comparison with kWh) and the gas usage amount P ′ (m ³ ) will be described.

  First, the system 40 performs the same processing as steps S100 to S116 in the first embodiment for electricity and gas (S200), and then the environmental load reduction amount calculation unit 38 performs the electrical environmental load reduction amount E1 and gas. The environmental load reduction amount E2 is calculated and stored in the customer information database 36 (S202).

  Next, in the system 40, the converted environmental load reduction amount calculation unit 48 acquires each carbon dioxide emission coefficient recorded in an appropriate storage device as the electrical environmental load reduction amount E1 and the gas environmental load reduction amount E2. By multiplying them, the environmental load reduction amounts ET1 and ET2 converted to carbon dioxide emissions of electricity and gas are calculated (S204).

  Next, in the system 40, the energy integrated environmental load reduction amount calculation unit 50 stores the electric and environmental information recorded in the appropriate storage device in the electric environmental load reduction amount E1 and the gas environmental load reduction amount E2 calculated in step S204. By calculating the sum of the environmental load reduction amounts ET1 and ET2 converted into the carbon dioxide emission amount of the gas, the energy integrated environmental load reduction amount ET in the customer 12 is calculated (S206).

  According to the second embodiment as described above, the same effect as that of the first embodiment can be obtained, and the energy integrated environmental load which is an integrated quantitative index regardless of the difference in the type of energy. Using the reduction amount ET, it is possible to evaluate the overall achievement level of the consumer 12 in reducing the environmental load. In this embodiment, two types of energy, electricity and gas, have been described as examples. However, the present invention is not limited to this, and any type of energy can be integrated as long as it can be converted into carbon dioxide emissions. The number is not limited to two, and any number can be integrated.

  Although the present invention has been specifically described above based on the embodiments thereof, the present invention is not limited thereto, and various modifications can be made without departing from the scope of the invention.

It is a network block diagram containing the environmental load reduction amount calculation system in 1st Embodiment. It is a graph explaining the relationship between the positive / negative of the temperature change amount and the positive / negative of the energy standard use change amount in the first embodiment. It is a graph explaining the relationship between the positive and negative of the energy standard usage change amount and the positive and negative of the value of the actual energy usage change amount in the first embodiment. It is a table | surface which shows the case where environmental impact reduction is achieved by the case classification in 1st Embodiment, and the case where it was not achieved. It is a figure which shows the example of a data structure of energy actual usage-amount data in 1st Embodiment. It is a figure which shows the example of a data structure of temperature data in 1st Embodiment. (A) Association data of customer area code and temperature data area in the first embodiment, (b) Sensation data of customer number and consumer area code, customer characteristic code, (c) Environmental load reduction It is a figure which shows the structural example of quantity data. It is a figure which shows the data structural example of energy standard usage-amount data in 1st Embodiment. It is a flowchart which shows the example of an implementation procedure of the environmental load reduction amount calculation method in 1st Embodiment. It is a network block diagram including the environmental load reduction amount calculation system in 2nd Embodiment. It is a table | surface which shows the case where the environmental load reduction by gas is achieved by the case in 2nd Embodiment, and the case where it was not achieved. It is a figure which shows the example of a data structure of the carbon dioxide emission coefficient data in 2nd Embodiment. It is a figure which shows the example of a data structure of gas actual usage-amount data in 2nd Embodiment. It is a figure which shows the structural example of the correlation data with a customer number, a consumer area code, and a consumer characteristic in 2nd Embodiment. It is a figure which shows the example of a data structure of gas standard usage-amount data in 2nd Embodiment. It is a figure which shows the data structure example of electric environmental load reduction amount and gas environmental load reduction amount data in 2nd Embodiment. It is a figure which shows the example of a data structure of the carbon dioxide emission conversion environmental load reduction amount data in 2nd Embodiment. It is a flowchart which shows the example of an implementation procedure of the environmental load reduction amount calculation method in 2nd Embodiment.

Explanation of symbols

10, 40 Environmental impact reduction calculation system (system)
DESCRIPTION OF SYMBOLS 12 Consumer 18 Actual energy usage registration part 20 Meter reading meter 22 Meter reading database 24 Temperature database 26 Temperature data registration part 28 Temperature change calculation part 30 Energy actual change calculation part 32 Energy standard use quantity database 34 Energy standard change calculation part 36 Customer Information Database 38 Environmental Load Reduction Calculation Unit 42 Electric Meter Reading Database 44 Gas Meter Reading Database 46 Gas Meter Meter 48 Converted Environmental Load Reduction Calculation Unit 50 Energy Integrated Environmental Load Reduction Calculation Unit

Claims (6)

An environmental load reduction amount calculation system for calculating an environmental load reduction amount performed by a customer who receives energy supply from an energy supply company,
An actual energy usage registration unit that acquires actual energy usage data in the consumer from the meter meter provided in the consumer, and stores the actual energy usage data in the meter reading database;
From the meter reading database, the actual energy usage data of the evaluation target date and the past comparison target date is obtained, and by calculating the difference between the two, the actual energy usage change calculating unit for calculating the actual energy usage change amount,
By obtaining the energy standard usage data of the evaluation target date and the past comparison target date from the energy standard usage database storing the energy standard usage data for each temperature, the energy standard is calculated by calculating the difference between the two. An energy standard change amount calculation unit for calculating a use change amount;
By calculating the difference between the actual energy usage change amount and the energy standard usage change amount calculated by the energy actual change amount calculation unit and the energy standard change amount calculation unit, the environmental load reduction amount in the consumer Calculating the environmental load reduction amount, and storing the calculated environmental load reduction amount in the customer information database;
An environmental load reduction calculation system characterized by comprising: In claim 1,
The temperature data registration unit that acquires the temperature data of the evaluation target date and the past comparison target date from an input / output device, and stores the temperature data in a temperature database;
A temperature change amount calculation unit that calculates temperature change amount by acquiring temperature data of the evaluation target date and the past comparison target date from the temperature database, and calculating a difference between the two,
In the environmental load reduction amount calculation unit, the environmental load reduction amount is calculated by the energy actual use change amount value calculated by the energy actual change amount calculation unit and the energy standard use change amount calculation unit. In addition, the environmental load is calculated by being classified according to the sign of the value of the energy standard usage change amount and the sign of the value of the temperature change amount calculated by the temperature change amount calculation unit. Reduction amount calculation system. In claim 1 or 2,
The environmental load reduction amount calculation system characterized in that the energy standard usage data for each temperature stored in the energy standard usage database is classified according to the characteristics of the consumer and stored in a plurality of patterns. In any one of Claims 1-3,
The energy supplied from the energy supply company to the consumer comprises a plurality of different types of energy,
The actual energy usage registration unit obtains actual energy usage data for each of the plurality of energies in the consumer from a meter meter for each of the plurality of different types of energy provided in the consumer, Energy actual usage data for each of a plurality of energy is stored in the meter reading database,
The actual energy change amount calculation unit obtains actual energy usage data for each of the plurality of energies from the evaluation target date and the past comparison target date from the meter reading database, and calculates a difference between the two. Calculating an actual energy use change amount for each of the plurality of energies;
The energy standard change amount calculation unit, for each temperature, and from the energy standard usage database storing the energy standard usage data for each of the plurality of energy, the evaluation target date and the past comparison target date, Obtain energy standard usage data for each of a plurality of energies, calculate the energy standard usage change amount for each of the plurality of energies by calculating the difference between the two,
The environmental load reduction amount calculation unit is configured to calculate the actual energy use change amount and the energy standard use change amount for each of the plurality of energies calculated by the actual energy change amount calculation unit and the energy standard change amount calculation unit. By calculating the environmental load reduction amount for each of the plurality of energies,
By multiplying the environmental load reduction amount for each of the plurality of energies calculated by the environmental load reduction amount calculating unit by the carbon dioxide emission coefficient of each energy, the carbon dioxide emission amount for each of the plurality of energies is calculated. A converted environmental load reduction amount calculation unit for calculating a converted environmental load reduction amount;
By calculating the sum of the environmental load reduction amount converted into the carbon dioxide emission amount for each of the plurality of energy calculated in the converted environmental load reduction amount calculation unit, the energy integrated environmental load reduction in the consumer An environmental load reduction amount calculation system comprising: an energy integrated environmental load reduction amount calculation unit that calculates an amount and stores the calculated energy integration environmental load reduction amount in a customer information database. A method for calculating an environmental load reduction amount for calculating an environmental load reduction amount performed by a customer who receives energy supply from an energy supply company, the computer comprising:
Obtain the actual energy usage data for the customer from the meter meter provided to the customer, store the actual energy usage data in the meter reading database,
From the meter reading database, obtaining the actual energy usage data of the evaluation target date and the past comparison target date, by calculating the difference between the two, to calculate the actual energy use change amount,
By obtaining the energy standard usage data of the evaluation target date and the past comparison target date from the energy standard usage database storing the energy standard usage data for each temperature, the energy standard is calculated by calculating the difference between the two. Calculate usage change,
By calculating the difference between the actual energy usage change amount and the energy standard usage change amount calculated by the energy actual change amount calculation unit and the energy standard change amount calculation unit, the environmental load reduction amount in the consumer And store the calculated environmental load reduction amount in the customer information database.
An environmental load reduction calculation method characterized by the above. A program for causing a computer to execute an environmental load reduction amount calculation method for calculating an environmental load reduction amount performed by a customer who receives energy supply from an energy supply company,
Acquiring actual energy usage data for the customer from a meter reading meter provided in the consumer, and storing the actual energy usage data in the meter reading database;
Obtaining the actual energy usage data of the evaluation target date and the past comparison target date from the meter reading database, and calculating the actual energy use change amount by calculating the difference between the two,
By obtaining the energy standard usage data of the evaluation target date and the past comparison target date from the energy standard usage database storing the energy standard usage data for each temperature, the energy standard is calculated by calculating the difference between the two. Calculating a usage change amount;
By calculating the difference between the actual energy usage change amount and the energy standard usage change amount calculated by the energy actual change amount calculation unit and the energy standard change amount calculation unit, the environmental load reduction amount in the consumer Calculating the environmental load reduction amount in the customer information database; and
An environmental load reduction calculation program characterized by including:

Images