WO2024143610A1

WO2024143610A1 - Method and apparatus for reducing building energy costs and usage by using distributed power source within building

Info

Publication number: WO2024143610A1
Application number: PCT/KR2022/021568
Authority: WO
Inventors: 백준선
Original assignee: (주)누리플렉스
Priority date: 2022-12-28
Filing date: 2022-12-29
Publication date: 2024-07-04
Also published as: KR102618056B1

Abstract

The present invention relates to a method and an apparatus for reducing building energy costs and usage by using a distributed power source within a building. The method for reducing building energy costs and usage by using a distributed power source within a building, according to one embodiment of the present invention, comprises the steps of: setting a peak reduction target value by analyzing previous building energy usage data of a building energy management system for managing building energy; measuring the amount of load energy used in the building; and comparing the measured amount of used load energy to the set peak reduction target value, thereby reducing energy costs through control of at least one from among a distributed power source, load, and an energy storage system (ESS).

Description

Method and device for reducing building energy costs and usage using distributed power within the building

The present invention relates to a method and device for reducing building energy costs and usage using distributed power within a building.

Research related to this patent was conducted by the Korea Institute of Energy Technology Evaluation and Planning under the supervision of the Ministry of Trade, Industry and Energy (Research project name: International joint research on global market development, Research project name: Distributed power-linked Korean BEMS standard-based customized model verification in Southeast Asia, Project identification number: 1415181423, This was accomplished with support from Project Number: 20218510010130).

Buildings are objects that consume a lot of energy, so energy management is essential.

Conventional buildings use BEMS (Building Energy Management System), which monitors energy usage and identifies where a lot of energy is used, or BAS (Building Automation System), which controls and operates energy facilities.

In order to save energy in buildings, it is important to reduce power loads that use energy (e.g., lights, heating and cooling, general electricity, etc.).

Recently, as renewable energy generation sources and energy storage devices are increasingly being introduced into buildings, methods other than load control are emerging to reduce energy usage and costs.

There is photovoltaic power generation (PV) and electric energy storage system (ESS), as well as the distributed resource management system (DEMS - Distributed Energy Management System) and building energy management system (BEMS - Building Energy Management System). An algorithm is needed to achieve optimal control by reducing energy usage and energy costs by using electricity production, storage, and load control in buildings.

In the past, it is necessary to introduce a more efficient method of simply generating photovoltaic power (PV) and consuming it during the day, charging the ESS at times when power costs are low, and discharging at times when electricity costs are expensive.

To achieve this, communication between BEMS and DEMS and real-time analysis of total energy usage are essential.

Embodiments of the present invention compare measured load energy usage with a set peak reduction target value to reduce energy costs by controlling at least one of distributed power, load, and ESS, building energy costs using distributed power within the building. and to provide methods and devices for reducing usage.

Embodiments of the present invention are building energy using distributed power within the building, which can reduce energy consumption through control of at least one of distributed power, load, and ESS by comparing the measured load energy usage with a preset usage reduction target value. The goal is to provide methods and devices to reduce costs and usage.

However, the problem to be solved by the present invention is not limited to this, and may be expanded in various environments without departing from the spirit and scope of the present invention.

According to one embodiment of the present invention, in a method of reducing building energy costs and usage performed by a building energy cost and usage reduction device that communicates with a Building Energy Management System (BEMS), managing building energy Setting a peak reduction target value by analyzing previous building energy usage data of the building energy management system; Measuring load energy usage occurring in the building; and comparing the measured load energy usage with the set peak reduction target value to reduce energy costs through controlling at least one of distributed power, load, and ESS (Energy Storage System). Methods for reducing building energy costs and usage may be provided.

In the step of reducing the energy cost, if the measured load energy usage exceeds the upper limit of the threshold close to the set peak reduction target value, the distributed power generation amount generated by the distributed power source is controlled by the distributed power management system (DEMS, Distributed Energy Management System).

In the step of reducing energy costs, when the received distributed power generation amount is less than the peak control range of the set peak reduction target value, the load may be controlled by generating a load control command.

In the step of reducing energy costs, if the measured load energy usage exceeds the upper limit of the threshold while controlling the load by generating the load control command, a discharge command may be issued to the ESS.

In the step of reducing the energy cost, if the measured load energy usage is less than the lower limit of the threshold close to the set peak reduction target value, the discharge command or the load control command of the ESS may be stopped and normal operation may be controlled.

The method may further include comparing the measured load energy usage with a preset usage reduction target value to reduce energy usage by controlling at least one of distributed power, load, and ESS.

In the step of reducing the energy usage, if the measured load energy usage exceeds the preset usage reduction target value, the distributed power generation amount is checked, and the estimated distributed power generation amount predicted based on the confirmed distributed power generation amount reduces the usage amount. If it is less than the target control value, load control according to the load control amount can be commanded.

In the step of reducing energy usage, if the estimated distributed power generation amount and the load control amount are less than the usage reduction target control value, the remaining amount of the ESS may be checked and a discharge command may be issued to the ESS.

In the step of reducing the energy usage, if the energy savings sum of the estimated distributed power generation amount, the load control amount, and the ESS discharge amount is less than the usage reduction target control value, additional load control may be performed.

Meanwhile, according to another embodiment of the present invention, a communication module that communicates with a Building Energy Management System (BEMS); memory that stores one or more programs; And a processor that executes the one or more stored programs, wherein the processor analyzes previous building energy usage data of a building energy management system that manages building energy, sets a peak reduction target value, and sets a peak reduction target value, Distributed power within the building that measures usage, compares the measured load energy usage with the set peak reduction target value, and reduces energy costs by controlling at least one of distributed power, load, and ESS (Energy Storage System). A device for reducing building energy costs and usage may be provided.

The processor may receive the distributed power generation amount generated by the distributed power source from the distributed power management system when the measured load energy usage exceeds an upper threshold value close to the set peak reduction target value.

The processor may control the load by generating a load control command when the received distributed power generation amount is less than the peak control range of the set peak reduction target value.

The processor may issue a discharge command to the ESS if the measured load energy usage exceeds the upper limit of the threshold while controlling the load by generating the load control command.

If the measured load energy usage is less than the lower limit of a threshold close to the set peak reduction target value, the processor may stop the discharge command or the load control command of the ESS and control normal operation.

The processor may compare the measured load energy usage with a preset usage reduction target value to reduce energy usage through control of at least one of distributed power, load, and ESS.

The processor checks the distributed power generation amount if the measured load energy usage exceeds the preset usage reduction target value, and if the estimated distributed power generation amount based on the confirmed distributed power generation amount is less than the usage reduction target control value. Load control can be commanded according to the load control amount.

If the estimated distributed power generation amount and the load control amount are less than the usage reduction target control value, the processor may check the remaining amount of the ESS and issue a discharge command to the ESS.

The processor may additionally perform load control if the energy savings amount calculated by adding the estimated distributed power generation amount, the load control amount, and the ESS discharge amount is less than the usage reduction target control value.

The disclosed technology can have the following effects. However, since it does not mean that a specific embodiment must include all of the following effects or only the following effects, the scope of rights of the disclosed technology should not be understood as being limited thereby.

Embodiments of the present invention can reduce energy costs by controlling at least one of distributed power, load, and ESS by comparing measured load energy usage with a set peak reduction target value.

Embodiments of the present invention can reduce energy usage by controlling at least one of distributed power, load, and ESS by comparing the measured load energy usage with a preset usage reduction target value.

Figure 1 is a diagram showing the configuration of a system for reducing building energy costs and usage according to an embodiment of the present invention.

Figure 2 is a flow chart showing a method for reducing building energy costs and usage according to an embodiment of the present invention.

Figure 3 is a flowchart showing a method for reducing building energy costs according to an embodiment of the present invention.

Figure 4 is a flowchart showing a method for reducing building energy usage according to an embodiment of the present invention.

Figure 5 is a configuration diagram of a device for reducing building energy costs and usage using distributed power within a building according to an embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and may be understood to include all transformations, equivalents, and substitutes included in the technical idea and scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Terms such as first, second, etc. may be used to describe various components, but the components are not limited by the terms. Terms are used only to distinguish one component from another.

The terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. The terms used in the present invention are general terms that are currently widely used as much as possible while considering the function in the present invention, but this may vary depending on the intention of a person skilled in the art, precedents, or the emergence of new technology. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the relevant invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than simply the name of the term.

Singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that it does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, identical or corresponding components will be assigned the same drawing numbers and overlapping descriptions thereof will be omitted. do.

As shown in Figure 1, the building energy cost and usage reduction system according to an embodiment of the present invention includes a building energy cost and usage reduction device 100, a building energy management system 200, a load meter 210, and distribution. Includes a power management system 220. However, not all of the illustrated components are essential components. A building energy cost and usage reduction system may be implemented using more components than the components shown, or a building energy cost and usage reduction system may be implemented using fewer components.

Hereinafter, the specific configuration and operation of each component of the building energy cost and usage reduction system of FIG. 1 will be described.

The load meter 210 measures load energy generated from the load 211 placed in the building. For example, the load 211 may include at least one load (eg, load 1, load 2, ..., load n, etc.). The load 211 may be a facility or equipment that consumes power in a building, or may be a facility or equipment that consumes load energy not only in buildings but also in homes, factories, etc. Household or industrial equipment may be the main consumer of power, and specific requirements such as the amount of power required and voltage may vary depending on the type and time of each consumer. The load meter 210 may measure load energy generated from the load 211 placed in the building and transmit it to the building energy cost and usage reduction device 100 through the building energy management system 200.

The distributed power management system 220 can manage the overall operation of various distributed power sources 221 and energy storage systems (ESS) 222 deployed in the building. For example, the distributed power management system 220 may transmit the distributed power generation amount generated by the distributed power source 221 to the building energy cost and usage reduction device 100 through the building energy management system 200. The distributed power management system 220 can transmit power generation data about the amount of distributed power generated by the distributed power source 221 to the building energy cost and usage reduction device 100.

Here, the distributed power source 221 may include various distributed power sources such as solar photovoltaic (PV) installed in a building. The distributed power source 221 may include various distributed power sources such as solar photovoltaic (PV) power, fuel cells, distributed power sources for electricity/heat production, and heat storage facilities. In this way, the distributed power source 221 may include distributed power generation power sources such as solar power generation, distributed power storage power sources, distributed power sources producing electricity/heat, and heat storage facilities. Additionally, distributed power sources may include components that can convert natural energy into electrical energy or thermal energy. The distributed power source 221 may include a power generation source capable of generating renewable energy (eg, solar energy).

The energy storage system 222 stores energy by charging power produced by the distributed power source 221 or transmitted from the grid into a battery. The energy storage system 222 may discharge the battery under the control of the building energy cost and usage reduction device 100 and supply the stored energy to the load. The energy storage system 222 may include a battery, a power conditioning system (PCS), and a battery management system (BMS).

The building energy management system 200 is connected to the distributed power management system 220 and the load meter 210, and is connected to the building energy cost and usage reduction device 100. The building energy management system 200 manages building energy, stores previous building energy usage data, and transmits the stored previous building energy usage data to the building energy cost and usage reduction device 100. The building energy management system 200 is disposed between the distributed power management system 220 and the load meter 210 and the building energy cost and usage reduction device 100, and performs building energy cost reduction operations or building energy usage reduction operations. It can be performed together with the energy cost and usage reduction device 100.

The building energy cost and usage reduction device 100 according to an embodiment of the present invention analyzes previous building energy usage data of the building energy management system 200 for managing building energy, sets a peak reduction target value, and sets a peak reduction target value in the building. Measures the generated load energy usage, compares the measured load energy usage with the set peak reduction target value, and reduces energy costs by controlling at least one of the distributed power source 221, load 211, and ESS 222. . In addition, the building energy cost and usage reduction device 100 according to an embodiment of the present invention compares the measured load energy usage with a preset usage reduction target value to calculate the distributed power supply 221, the load 211, and the ESS 222. ), energy usage can be reduced through at least one control. The building energy cost and usage reduction device 100 controls at least one of the distributed power source 221, the load 211, and the ESS 222 to achieve at least one goal of reducing building energy costs and reducing building energy usage. You can.

As shown in FIG. 2, in step S101, the building energy cost and usage reduction device 100 sets a peak reduction target value by analyzing previous building energy usage data of the building energy management system 200 that manages building energy. do.

In step S102, the building energy cost and usage reduction device 100 measures the load energy usage occurring in the building.

In step S103, the building energy cost and usage reduction device 100 controls at least one of the distributed power source 221, the load 211, and the ESS 222 by comparing the measured load energy usage and the set peak reduction target value. Reduce energy costs through

In step S104, the building energy cost and usage reduction device 100 compares the measured load energy usage with a preset usage reduction target value to control at least one of the distributed power source 221, the load 211, and the ESS 222. Reduce energy usage through

As shown in FIG. 3, in step S201, the building energy cost and usage reduction device 100 measures load energy usage occurring in the building and analyzes the measured load energy usage.

In step S202, the building energy cost and usage reduction device 100 determines whether the measured load energy usage exceeds the upper threshold limit close to the set peak reduction target value.

In step S203, the building energy cost and usage reduction device 100, when the measured load energy usage exceeds the upper threshold limit close to the set peak reduction target value, the distributed power generation amount being generated by the distributed power source is controlled by the distributed power management system ( 220). Conversely, the building energy cost and usage reduction device 100 performs step S201 of measuring and analyzing the load energy usage if the measured load energy usage does not exceed the upper threshold limit close to the set peak reduction target value.

In step S204, the building energy cost and usage reduction device 100 determines whether the received distributed power generation amount is less than the peak control range of the set peak reduction target value.

In step S205, the building energy cost and usage reduction device 100 controls the load by generating a load control command when the received distributed power generation amount is less than the peak control range of the set peak reduction target value. Conversely, in step S205, the building energy cost and usage reduction device 100 performs step S203 of receiving the distributed power generation amount if the received distributed power generation amount is not less than the peak control range of the set peak reduction target value.

In step S206, the building energy cost and usage reduction device 100 determines whether the load energy usage measured while controlling the load by generating a load control command exceeds the upper threshold limit.

In step S207, the building energy cost and usage reduction device 100 controls the discharge of the ESS by issuing a discharge command to the ESS when the measured load energy usage exceeds the upper threshold limit while controlling the load by generating a load control command. do. The building energy cost and usage reduction device 100 discharges the remaining power in the ESS. Conversely, in step S207, the building energy cost and usage reduction device 100 generates a load control command to control the load. If the measured load energy usage does not exceed the upper threshold limit, perform step S205 to control the load. do.

In step S208, the building energy cost and usage reduction device 100 determines whether the measured load energy usage is below the lower limit of the threshold close to the set peak reduction target value.

In step S209, the building energy cost and usage reduction device 100 stops the discharge command or load control command of the ESS and controls normal operation if the measured load energy usage is less than the lower limit of the threshold close to the set peak reduction target value. . Conversely, in step S209, the building energy cost and usage reduction device 100 controls the discharging of the ESS by issuing a discharge command to the ESS if the measured load energy usage is not less than the lower limit of the threshold close to the set peak reduction target value. Perform S207.

As shown in FIG. 4, in step S301, the building energy cost and usage reduction device 100 measures load energy usage occurring in the building and analyzes the measured load energy usage.

In step S302, the building energy cost and usage reduction device 100 determines whether the measured load energy usage exceeds the set usage reduction target value.

In step S303, the building energy cost and usage reduction device 100 checks the distributed power generation amount when the measured load energy usage exceeds the preset usage reduction target value. Conversely, in step S303, the building energy cost and usage reduction device 100 performs step S301 of measuring and analyzing the load energy usage if the measured load energy usage does not exceed the preset usage reduction target value.

In step S304, the building energy cost and usage reduction device 100 checks whether the estimated distributed power generation amount expected based on the confirmed distributed power generation amount is less than the usage reduction target control value.

In step S305, the building energy cost and usage reduction device 100 controls the load by commanding load control according to the load control amount if the estimated distributed power generation amount expected based on the confirmed distributed power generation amount is less than the usage reduction target control value. . Conversely, in step S305, the building energy cost and usage reduction device 100 measures and analyzes the load energy usage if the estimated distributed power generation amount predicted based on the confirmed distributed power generation amount is not less than the usage reduction target control value. Perform S301.

In step S306, the building energy cost and usage reduction device 100 checks whether the estimated distributed power generation amount and load control amount are less than the usage reduction target control value.

In step S307, the building energy cost and usage reduction device 100 checks the remaining amount of the ESS if the estimated distributed power generation amount and load control amount are less than the usage reduction target control value, and controls ESS discharge by issuing a discharge command to the ESS. Conversely, the building energy cost and usage reduction device 100 performs step S301 of measuring and analyzing the load energy usage if the estimated distributed power generation amount and load control amount are not less than the usage reduction target control value.

In step S308, the building energy cost and usage reduction device 100 determines whether the energy savings sum of the estimated distributed power generation amount, load control amount, and ESS discharge amount is less than the usage reduction target control value.

In step S309, the building energy cost and usage reduction device 100 performs a distributed power generation control operation and a load control operation if the energy savings sum of the estimated distributed power generation amount, load control amount, and ESS discharge amount is not less than the usage reduction target control value. and maintain the status quo of performing the ESS discharge control operation. On the other hand, the building energy cost and usage reduction device 100 commands load control according to the load control amount to reduce the load when the energy saving amount calculated by adding the estimated distributed power generation amount, load control amount, and ESS discharge amount is less than the usage reduction target control value. Control step S305 is performed.

In this way, the building energy cost and usage reduction device 100 using distributed power within the building according to an embodiment of the present invention compares the measured load energy usage with the preset usage reduction target value to determine the savings among the distributed power, load, and ESS. Energy usage can be reduced through at least one control.

As shown in FIG. 5, the device 100 for reducing building energy costs and usage using distributed power within a building according to an embodiment of the present invention includes a communication module 310, a memory 320, and a processor 330. do. However, not all of the illustrated components are essential components. The device 100 for reducing building energy costs and usage using distributed power within a building may be implemented using more components than those shown, and may also reduce building energy costs and usage using distributed power within a building using fewer components. Apparatus 100 may be implemented.

Hereinafter, the specific configuration and operation of each component of the building energy cost and usage reduction device 100 using distributed power within the building shown in FIG. 5 will be described.

Communication module 310 communicates with building energy management system 200.

The memory 320 stores one or more programs related to operations to reduce building energy costs and usage using distributed power.

The processor 330 executes one or more programs stored in the memory 320. The processor 330 analyzes previous building energy usage data of the building energy management system 200, which manages building energy, sets a peak reduction target value, measures the load energy usage occurring in the building, and measures the measured load energy usage. Energy costs are reduced by controlling at least one of distributed power, load, and ESS (Energy Storage System) by comparing the set peak reduction target value.

According to embodiments, the processor 330 receives the distributed power generation amount being generated by the distributed power source from the distributed power management system 220 when the measured load energy usage exceeds the upper threshold limit close to the set peak reduction target value. can do.

According to embodiments, the processor 330 may control the load by generating a load control command when the received distributed power generation amount is less than the peak control range of the set peak reduction target value.

According to embodiments, the processor 330 may issue a discharge command to the ESS if the measured load energy usage exceeds the upper limit of the threshold while controlling the load by generating a load control command.

According to embodiments, if the measured load energy usage is less than the lower limit of the threshold close to the set peak reduction target value, the processor 330 may stop the discharge command or load control command of the ESS and control normal operation.

According to embodiments, the processor 330 may compare the measured load energy usage with a preset usage reduction target value to reduce energy usage by controlling at least one of distributed power, load, and ESS.

According to embodiments, the processor 330 checks the distributed power generation amount when the measured load energy usage exceeds a preset usage reduction target value, and the estimated distributed power generation amount based on the confirmed distributed power generation amount reduces usage. If it is less than the target control value, load control according to the load control amount can be commanded.

According to embodiments, the processor 330 may check the remaining amount of the ESS and issue a discharge command to the ESS if the estimated distributed power generation amount and the load control amount are less than the usage reduction target control value.

According to embodiments, the processor 330 may additionally perform load control if the energy savings amount calculated by adding the estimated amount of distributed power generation, load control amount, and ESS discharge amount is less than the usage reduction target control value.

Meanwhile, according to one embodiment of the present invention, the various embodiments described above are implemented as software including instructions stored in a machine-readable storage media (e.g., a computer). It can be. The device is a device capable of calling instructions stored from a storage medium and operating according to the called instructions, and may include an electronic device (eg, electronic device A) according to the disclosed embodiments. When an instruction is executed by a processor, the processor may perform the function corresponding to the instruction directly or using other components under the control of the processor. Instructions may contain code generated or executed by a compiler or interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium does not contain signals and is tangible, and does not distinguish whether the data is stored in the storage medium semi-permanently or temporarily.

Additionally, according to an embodiment of the present invention, the method according to the various embodiments described above may be provided and included in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed on a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or online through an application store (e.g. Play Store™). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or created temporarily in a storage medium such as the memory of a manufacturer's server, an application store server, or a relay server.

In addition, according to an embodiment of the present invention, the various embodiments described above are stored in a recording medium that can be read by a computer or similar device using software, hardware, or a combination thereof. It can be implemented in . In some cases, embodiments described herein may be implemented in a processor itself. According to software implementation, embodiments such as procedures and functions described in this specification may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein.

Meanwhile, computer instructions for performing processing operations of devices according to the various embodiments described above may be stored in a non-transitory computer-readable medium. Computer instructions stored in such a non-transitory computer-readable medium, when executed by a processor of a specific device, cause the specific device to perform processing operations in the device according to the various embodiments described above. A non-transitory computer-readable medium refers to a medium that stores data semi-permanently and can be read by a device, rather than a medium that stores data for a short period of time, such as registers, caches, and memories. Specific examples of non-transitory computer-readable media may include CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, etc.

In addition, each component (e.g., module or program) according to the various embodiments described above may be composed of a single or multiple entities, and some of the sub-components described above may be omitted, or other sub-components may be omitted. Sub-components may be further included in various embodiments. Alternatively or additionally, some components (e.g., modules or programs) may be integrated into a single entity and perform the same or similar functions performed by each corresponding component prior to integration. According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or at least some operations may be executed in a different order, omitted, or other operations may be added. It can be.

In the above, preferred embodiments of the present invention have been shown and described, but the present invention is not limited to the specific embodiments described above, and may be used in the technical field pertinent to the disclosure without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

[Explanation of symbols]

100: Device to reduce building energy costs and usage

200: Building Energy Management System (BEMS)

210: load meter

211: subordinate

220: Distributed Power Management System (DEMS)

221: Distributed power

222: Energy storage system (ESS)

310: communication module

320: memory

330: processor

Claims

In a method of reducing building energy costs and usage performed by a building energy cost and usage reduction device in communication with a Building Energy Management System (BEMS),

Setting a peak reduction target value by analyzing previous building energy usage data of a building energy management system that manages building energy;

Measuring load energy usage occurring in the building; and

Comparing the measured load energy usage with the set peak reduction target value and reducing energy costs by controlling at least one of distributed power, load, and ESS (Energy Storage System) using distributed power within the building. How to reduce building energy costs and usage.
According to paragraph 1,

The step of reducing energy costs is,

If the measured load energy usage exceeds the threshold upper limit close to the set peak reduction target value, the distributed power generation amount generated by the distributed power source is received from the distributed power management system (DEMS, Distributed Energy Management System) within the building. How to reduce building energy costs and usage using distributed power.
According to paragraph 2,

The step of reducing energy costs is,

A method of reducing building energy costs and usage using distributed power within a building, wherein when the received distributed power generation amount is less than the peak control range of the set peak reduction target value, the load is controlled by generating a load control command.
According to clause 3,

The step of reducing energy costs is,

A method of reducing building energy costs and usage using distributed power within a building, in which a discharge command is given to the ESS when the measured load energy usage exceeds the threshold upper limit while controlling the load by generating the load control command.
According to paragraph 4,

The step of reducing energy costs is,

If the measured load energy usage is less than the lower limit of the threshold close to the set peak reduction target value, the discharging command or the load control command of the ESS is stopped and normal operation is controlled. Building energy cost and usage using distributed power within the building How to save.
According to paragraph 1,

Comparing the measured load energy usage with a preset usage reduction target value and reducing energy usage by controlling at least one of distributed power, load, and ESS, the building energy cost using distributed power within the building and How to reduce usage.
According to clause 6,

The step of reducing energy usage is,

If the measured load energy usage exceeds the preset usage reduction target value, the distributed power generation amount is checked, and if the estimated distributed power generation amount based on the confirmed distributed power generation amount is less than the usage reduction target control value, the load control amount is adjusted. A method of reducing building energy costs and usage using distributed power within a building that commands load control.
In clause 7,

The step of reducing energy usage is,

A method of reducing building energy costs and usage using distributed power within a building, wherein if the estimated distributed power generation amount and the load control amount are less than the usage reduction target control value, the remaining amount of the ESS is checked and a discharge command is given to the ESS.
According to clause 8,

The step of reducing energy usage is,

A method of reducing building energy costs and usage using distributed power within a building, in which additional load control is performed if the energy saving amount calculated by adding the estimated distributed power generation amount, the load control amount, and the ESS discharge amount is less than the usage reduction target control value.
A communication module that communicates with a Building Energy Management System (BEMS);

memory that stores one or more programs; and

a processor that executes the one or more stored programs,

The processor,

By analyzing previous building energy usage data from the building energy management system that manages building energy, peak reduction targets are set,

Measure the load energy usage generated in the building,

Building energy costs using distributed power within the building, which compares the measured load energy usage and the set peak reduction target value to reduce energy costs through control of at least one of distributed power, load, and ESS (Energy Storage System), and Usage-saving device.
According to clause 10,

The processor,

If the measured load energy usage exceeds the threshold upper limit close to the set peak reduction target value, the building energy cost using distributed power within the building receives the distributed power generation amount being generated by the distributed power source from the distributed power management system, and Usage-saving devices.
According to clause 11,

The processor,

A device for reducing building energy costs and usage using distributed power within a building, which controls the load by generating a load control command when the received distributed power generation amount is less than the peak control range of the set peak reduction target value.
According to clause 12,

The processor,

A device for reducing building energy costs and usage using distributed power within a building, which issues a discharge command to the ESS when the measured load energy usage exceeds the upper limit of the threshold while controlling the load by generating the load control command.
According to clause 13,

The processor,

If the measured load energy usage is below the threshold lower limit close to the set peak reduction target value, the discharging command or the load control command of the ESS is stopped and normal operation is controlled. Building energy cost and usage using distributed power within the building Savings device.
According to clause 10,

The processor,

A building energy cost and usage reduction device using distributed power within a building that compares the measured load energy usage with a preset usage reduction target value and reduces energy usage by controlling at least one of distributed power, load, and ESS.
According to clause 15,

The processor,

If the measured load energy usage exceeds the preset usage reduction target value, the distributed power generation amount is checked, and if the estimated distributed power generation amount based on the confirmed distributed power generation amount is less than the usage reduction target control value, the load control amount is adjusted. A device that commands load control and reduces building energy costs and usage by using distributed power within the building.
According to clause 16,

The processor,

A device for reducing building energy costs and usage using distributed power within a building, which checks the remaining power of the ESS and issues a discharge command to the ESS when the estimated distributed power generation amount and the load control amount are less than the usage reduction target control value.
According to clause 17,

The processor,

A device for reducing building energy costs and usage using distributed power within a building that additionally performs load control if the energy saving amount calculated by adding the estimated distributed power generation amount, the load control amount, and the ESS discharge amount is less than the usage reduction target control value.