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JP-2026074612-A - Power usage evaluation device and power usage evaluation method

JP2026074612AJP 2026074612 AJP2026074612 AJP 2026074612AJP-2026074612-A

Abstract

[Solution] The power usage evaluation device 10 includes a temperature information acquisition unit 70 that acquires temperature information P relating to the temperature of a region L including the building 20a to be evaluated; a power information acquisition unit 72 that acquires power information relating to the amount of power used W of power used by multiple buildings 20 in the region; an index value calculation unit 74 that calculates an index value I based on the temperature information and power information; a reference value calculation unit 76 that calculates a reference value R; an evaluation unit 78 that uses the index value and reference value to determine an evaluation value V relating to the power usage of the temperature control device installed in the building to be evaluated and generates an evaluation result N based on the evaluation value; and an output unit 80 that outputs the evaluation result. [Selection Diagram] Figure 1

Inventors

  • 伊熊 洋介
  • 芳野　恵一
  • 太田 麻衣子

Assignees

  • 一般社団法人エコまちフォーラム

Dates

Publication Date
20260507
Application Date
20241021

Claims (15)

  1. A temperature information acquisition unit that acquires temperature information regarding the area including the building being evaluated, A power information acquisition unit that acquires power information regarding the amount of electricity used in multiple buildings, including the building to be evaluated, within the aforementioned area, An index value calculation unit calculates an index value which is the ratio of the difference in the amount of electricity used by the building under evaluation to the difference in temperature between a first period and a second period different from the first period, based on the temperature information and the power information. A reference value calculation unit that calculates reference values based on the ratio of the difference in power consumption of at least some of the buildings among the multiple buildings in the area to the temperature difference between the first period and the second period, An evaluation unit that determines an evaluation value for the power consumption of a temperature control device installed in the building under evaluation using the aforementioned index value and the aforementioned reference value, and generates an evaluation result based on the aforementioned evaluation value, An output unit that outputs the evaluation results, A power usage evaluation device equipped with the following features.
  2. A power usage evaluation device according to claim 1, Multiple buildings within the aforementioned area are power usage evaluation devices, which are predetermined from among all buildings within the aforementioned area.
  3. A power usage evaluation device according to claim 1, A power usage evaluation device in which at least some of the buildings among the multiple buildings in the area include the building to be evaluated.
  4. A power usage evaluation device according to claim 1, A power usage evaluation device wherein at least some of the multiple buildings within the area do not include the building being evaluated.
  5. A power usage evaluation device according to any one of claims 1 to 4, A power usage evaluation device in which the reference value is the mean, median, or mode of the set of ratios corresponding to each of the buildings among the multiple buildings in the area.
  6. A power usage evaluation device according to any one of claims 1 to 4, A power usage evaluation device further comprising a period determination unit that determines a period of predetermined length as the first period, corresponding to the maximum or minimum value of the temperature during the predetermined period indicated by the temperature information during the predetermined period in the past.
  7. A power usage evaluation device according to claim 6, The power usage evaluation device, wherein the period determination unit determines a period of predetermined length as the second period, which does not correspond to either the maximum or minimum value of the temperature during the predetermined period.
  8. A power usage evaluation device according to any one of claims 1 to 4, A power usage evaluation device further comprising a period determination unit that determines a period of predetermined length as the first period, corresponding to the maximum value of the amount of power used during the predetermined period as indicated by the power information of the building to be evaluated during the predetermined period in the past.
  9. A power usage evaluation device according to claim 8, The power usage evaluation device, wherein the period determination unit determines a period of predetermined length as the second period, which corresponds to the minimum value of the amount of power used during the predetermined period indicated by the power information of the building to be evaluated during the predetermined period.
  10. A power usage evaluation device according to claim 1, The evaluation unit is a power usage evaluation device that determines the evaluation value according to the difference between the index value and the reference value.
  11. A power usage evaluation device according to claim 10, The power usage evaluation device generates the evaluation result using the symbols by associating the evaluation value with the number of symbols or the type of symbols indicating the superiority or inferiority of the evaluation value.
  12. A power usage evaluation device according to claim 10 or 11, The power usage evaluation device comprises an evaluation unit which determines a comment according to the evaluation value and generates the evaluation result including the comment.
  13. A power usage evaluation device according to any one of claims 1 to 4, The output unit is a power usage evaluation device that outputs the evaluation results as an electronic file.
  14. A power usage evaluation device according to claim 13, A power usage evaluation device further comprising a transmission unit that transmits the electronic file output by the output unit to an external device via communication.
  15. A temperature information acquisition step to obtain temperature information regarding the temperature of the area including the building to be evaluated, A power information acquisition step involves acquiring power information regarding the amount of electricity used in multiple buildings, including the building to be evaluated, within the aforementioned area. An index value calculation step, based on the temperature information and the power information, calculates an index value which is the ratio of the difference in the amount of power consumption of the building under evaluation to the difference in temperature between a first period and a second period different from the first period; A reference value calculation step of calculating a reference value based on the ratio of the difference in power consumption of at least some of the buildings among the multiple buildings in the area to the temperature difference between the first period and the second period, An evaluation step in which an evaluation value is determined for the power consumption of the temperature control device installed in the building to be evaluated, using the index value and the reference value, and an evaluation result is generated based on the evaluation value, An output step for outputting the evaluation results, A method for evaluating power usage, comprising the following components.

Description

This disclosure relates to a power usage evaluation device and a power usage evaluation method. Japanese Patent Publication No. 2019-122154 discloses a method for acquiring energy demand characteristics. By relating the energy consumption per unit floor area per unit time in an area including buildings, etc., with the outside temperature of the area per unit time, the fluctuation characteristics of heating and cooling loads in relation to the outside temperature can be acquired. Japanese Patent Publication No. 2019-122154 Figure 1 is a diagram illustrating a power usage evaluation device according to one embodiment.Figure 2 is a graph showing an example of monthly changes in electricity consumption and temperature in a particular building.Figure 3A is a diagram illustrating an example of determining an evaluation value using an index value and a reference value. Figure 3B is a diagram illustrating the number and types of symbols to which an evaluation value is associated.Figure 4 is an example of the evaluation results.Figure 5 is a flowchart illustrating the processing procedure related to the power usage evaluation method performed by the power usage evaluation device.Figure 6 is a diagram illustrating a modified power usage evaluation device.Figure 7 is a flowchart illustrating the processing procedure for determining the first and second periods by the period determination unit. Figure 1 is a diagram illustrating a power usage evaluation device 10 according to one embodiment. The power usage evaluation device 10 evaluates the power usage of a temperature control device installed in building 20a, one of the buildings 20 within area L. The temperature control device corresponds to, for example, an air conditioning system for heating and cooling. Figure 1 shows buildings 20a, 20b, 20c, 20d, 20e, and 20f as all the buildings 20 within area L. Buildings 20b, 20c, and 20d were all constructed around the same time as the building under evaluation 20a and have a similar total floor area. That is, buildings 20b, 20c, and 20d all share relatively similar main characteristics with building 20a. Buildings 20e and 20f are larger buildings with a greater total floor area than building 20a. That is, buildings 20e and 20f do not share relatively similar main characteristics with building 20a. Each of the buildings 20 within area L is equipped with a smart meter M capable of measuring the electricity usage of each customer occupying that building 20. The electricity usage measured by multiple smart meters M is stored via communication in the storage of the electricity information server 30 owned by the electric power company. The power information server 30 can calculate the power consumption for each building 20 based on the power consumption measured by multiple smart meters M installed in each building 20. Therefore, the power information server 30 can generate power information regarding the power consumption of all buildings 20 within the region L and store it in storage. Temperature information for the area L, including the building 20a under evaluation, can be stored in the storage of the temperature information server 40 owned by the weather information provider. As shown in Figure 1, the power usage evaluation device 10, the power information server 30, and the temperature information server 40 are all connected to the communication network 50. The external device X, described later, is also connected to the communication network 50. As described above, the power usage evaluation device 10 evaluates the power usage of the temperature control device installed in the target building 20a within area L. The power usage evaluation device 10 includes a calculation unit 60, a storage unit 62, and a communication unit 64. The calculation unit 60 includes a processor such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit). That is, the calculation unit 60 includes processing circuitry. The storage unit 62 includes volatile memory such as RAM (Random Access Memory) and non-volatile memory such as ROM (Read Only Memory) or flash memory. The volatile memory is used as the processor's working memory. The non-volatile memory stores programs executed by the processor, numerical data corresponding to predetermined first and second periods (described later), and the like. The communication unit 64 is used for the power usage evaluation device 10 to communicate with external devices X, the power information server 30, and the temperature information server 40 via the communication network 50. The calculation unit 60 includes a temperature information acquisition unit 70, a power information acquisition unit 72, an index value calculation unit 74, a reference value calculation unit 76, an evaluation unit 78, an output unit 80, and a transmission unit 82. The calculation unit 60 executes a program stored in the storage unit 62, thereby realizing the temperature information acquisition unit 70, the power informa