Method and device for evaluating energy conservation and emission reduction potential of building, and storage medium

Abstract

The invention discloses a building energy conservation and emission reduction potential assessment method and device, a storage medium, an electronic device and a computer program product, and the method comprises the steps: determining the unit area energy consumption and unit area carbon emission of a building according to the area and energy consumption of the to-be-assessed building; according to the category of the building, the energy consumption per unit area and the carbon emission per unit area, the energy-carbon scale factor of the building is determined, and the category of the building is related to the purpose of the building; determining an evaluation standard according to the energy consumption parameters and the carbon emission parameters of a plurality of buildings of the same category in the area where the to-be-evaluated building is located; and determining the energy conservation and emission reduction potential of the to-be-evaluated building according to the energy consumption per unit area, the carbon emission per unit area, the energy-carbon scale factor and the evaluation standard of the to-be-evaluated building. The method not only considers the energy consumption and carbon emission of the building, but also considers the category and regional characteristics of the building, so that the evaluation result of the energy conservation and emission reduction potential is more comprehensive and accurate.

Description

Technical Field

[0001] The present application relates to the field of energy conservation and emission reduction, and specifically, to a method and device for evaluating the energy conservation and emission reduction potential of a building, a storage medium, an electronic device, and a computer program product. Background Art

[0002] With the rapid economic development and the acceleration of urbanization, building energy consumption and carbon emissions have gradually increased, and the proportion of building energy consumption and carbon emissions in the global total energy consumption and carbon emissions has increased day by day. Therefore, in order to achieve energy conservation and emission reduction in buildings, domestic and foreign scholars have done a lot of research in the field of building energy conservation and proposed many energy-saving technologies, such as passive buildings and green buildings. Energy conservation and emission reduction potential refers to how much energy conservation and emission reduction space the building has by adopting the latest energy-saving technologies, equipment and materials without changing the overall layout and structure of the building, that is, how much the energy consumption and carbon emissions of the building can be reduced.

[0003] In related technologies, building energy consumption and carbon emission assessment methods mostly use a single indicator for assessment, such as focusing only on the energy efficiency of the building or only assessing the carbon emission intensity of the building.

[0004] However, the evaluation methods of relevant technologies ignore the intrinsic connection between energy efficiency and carbon efficiency, and are unable to fully and accurately reflect the energy utilization efficiency and carbon emission control capabilities of buildings. Summary of the invention

[0005] Embodiments of the present application provide a method and device for evaluating the energy-saving and emission-reduction potential of a building, a storage medium, an electronic device, and a computer program product.

[0006] According to one aspect of an embodiment of the present application, a method for evaluating the energy-saving and emission-reduction potential of a building is provided, the method comprising: determining the energy consumption per unit area and the carbon emissions per unit area of ​​the building according to the area and energy usage of the building to be evaluated; determining the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area and the carbon emissions per unit area, wherein the category of the building is related to the purpose of the building; determining an evaluation standard according to the energy consumption parameters and carbon emission parameters of multiple buildings of the same category in the area where the building to be evaluated is located; determining the energy-saving and emission-reduction potential of the building to be evaluated according to the energy consumption per unit area of ​​the building to be evaluated, the carbon emissions per unit area, the energy-to-carbon ratio factor, and the evaluation standard.

[0007] In one embodiment of the present application, the step of determining the energy consumption per unit area and the carbon emissions per unit area of ​​a building based on the area and energy usage of the building to be evaluated includes: obtaining the area and energy usage of the building to be evaluated; converting the total energy consumption and the total carbon emissions of the building to be evaluated based on the energy usage of the building to be evaluated; determining the energy consumption per unit area and the carbon emissions per unit area of ​​the building based on the area of ​​the building to be evaluated, the total energy consumption and the total carbon emissions of the building.

[0008] In one embodiment of the present application, the step of determining the energy-to-carbon ratio factor of a building according to the category of the building, the energy consumption per unit area, and the carbon emissions per unit area includes: determining the category of the building to be evaluated according to the purpose of the building to be evaluated; looking up a table to determine the reference energy consumption per unit area and the reference carbon emissions per unit area corresponding to the category of the building to be evaluated; determining the energy-to-carbon ratio factor of the building to be evaluated according to the energy consumption per unit area and the carbon emissions per unit area of ​​the building to be evaluated, as well as the reference energy consumption per unit area and the reference carbon emissions per unit area.

[0009] In one embodiment of the present application, the step of determining the evaluation standard based on the energy consumption parameters and carbon emission parameters of multiple buildings of the same type in the area where the building to be evaluated is located includes: determining the energy consumption per unit area, carbon emissions per unit area, and energy-to-carbon ratio factor of multiple buildings of the same type in the area where the building to be evaluated is located; determining the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-to-carbon ratio factor based on the average value of the energy consumption per unit area, the average value of the carbon emissions per unit area, and the average value of the energy-to-carbon ratio factor of multiple buildings of the same type in the area where the building to be evaluated is located; wherein the evaluation standard includes the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-to-carbon ratio factor.

[0010] In one embodiment of the present application, the step of determining the energy-saving and emission-reduction potential of a building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor, and evaluation standards of the building to be evaluated includes: determining a first weight, a second weight, and a third weight corresponding to the energy consumption per unit area, the carbon emissions per unit area, and the energy-to-carbon ratio factor, respectively; determining the energy-saving and emission-reduction potential of the building to be evaluated based on the differences between the energy consumption per unit area, the carbon emissions per unit area, and the energy-to-carbon ratio factor of the building to be evaluated and the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-to-carbon ratio factor, as well as the first weight, the second weight, and the third weight.

[0011] In one embodiment of the present application, the steps of determining the first weight, the second weight, and the third weight corresponding to the energy consumption per unit area, the carbon emissions per unit area, and the energy-to-carbon ratio factor, respectively, include: determining the first information entropy, the second information entropy, and the third information entropy corresponding to the energy consumption per unit area, the carbon emissions per unit area, and the energy-to-carbon ratio factor, respectively; and determining the first weight, the second weight, and the third weight, respectively, based on the first information entropy, the second information entropy, and the third information entropy.

[0012] According to another aspect of an embodiment of the present application, a device for evaluating the energy-saving and emission-reduction potential of a building is also provided, and the device includes: an energy-carbon parameter determination module, which is used to determine the energy consumption per unit area and the carbon emissions per unit area of ​​the building according to the area and energy usage of the building to be evaluated; an energy-carbon factor determination module, which is used to determine the energy-carbon proportion factor of the building according to the category of the building, the energy consumption per unit area and the carbon emissions per unit area, wherein the category of the building is related to the purpose of the building; an evaluation standard determination module, which is used to determine the evaluation standard according to the energy consumption parameters and carbon emission parameters of multiple buildings of the same category in the area where the building to be evaluated is located; an energy-saving and emission-reduction potential determination module, which is used to determine the energy-saving and emission-reduction potential of the building to be evaluated according to the energy consumption per unit area of ​​the building to be evaluated, the carbon emissions per unit area, the energy-carbon proportion factor, and the evaluation standard.

[0013] According to another aspect of the embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the method for evaluating the energy-saving and emission-reduction potential of the above-mentioned building when running.

[0014] According to another aspect of an embodiment of the present application, an electronic device is also provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the method for evaluating the energy-saving and emission-reduction potential of a building through the computer program.

[0015] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps of the method described in each embodiment of the present application are implemented.

[0016] The above-mentioned assessment method for the energy-saving and emission-reduction potential of buildings can accurately assess the energy-saving and emission-reduction potential of buildings by quantifying the energy consumption per unit area, carbon emissions per unit area and energy-carbon ratio factor of the building, and combining the average standards of similar buildings in the region. This method not only takes into account the energy consumption and carbon emissions of the building, but also takes into account the building category and regional characteristics, making the assessment results of the energy-saving and emission-reduction potential more comprehensive and accurate. In practical applications, this method can help building managers and policy makers identify energy-saving and emission-reduction improvement points for buildings, provide a scientific basis for the formulation of energy-saving and emission-reduction strategies, and effectively promote the green transformation and sustainable development of the construction industry. This method comprehensively considers the energy consumption, carbon emissions and regional characteristics of the building, and provides a scientific basis for the assessment of the energy-saving and emission-reduction potential of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a hardware structure block diagram of the method for evaluating the energy-saving and emission-reduction potential of a building in an embodiment of the present application;

[0020] Figure 2 is a flow chart of a method for evaluating energy conservation and emission reduction potential of a building according to an embodiment of the present application;

[0021] Figure 3 This is a second flow chart of a method for evaluating the energy-saving and emission-reduction potential of a building according to an embodiment of the present application;

[0022] Figure 4 This is a flowchart of a method for evaluating the energy-saving and emission-reduction potential of a building according to an embodiment of the present application;

[0023] Figure 5 This is a fourth flow chart of a method for evaluating the energy-saving and emission-reduction potential of a building according to an embodiment of the present application;

[0024] Figure 6 is a fifth flow chart of a method for evaluating energy conservation and emission reduction potential of a building according to an embodiment of the present application;

[0025] Figure 7 This is a sixth flow chart of a method for evaluating energy conservation and emission reduction potential of a building according to an embodiment of the present application;

[0026] Figure 8 It is a structural block diagram of a device for evaluating the energy-saving and emission-reduction potential of a building according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0029] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 1 is a hardware structure block diagram of a computer terminal of the method for evaluating the energy saving and emission reduction potential of a building in an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a microprocessor (Microprocessor Unit, referred to as MPU) or a programmable logic device (Programmable logic device, referred to as PLD)) and a memory 104 for storing data. In an exemplary embodiment, the computer terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Equivalent functions or comparisons shown Figure 1 A different configuration with more features is shown.

[0030] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for evaluating the energy conservation and emission reduction potential of buildings in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0031] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0032] In this embodiment, a method for evaluating the energy saving and emission reduction potential of a building is provided. Figure 2 It is a flow chart of an optional method for evaluating the energy saving and emission reduction potential of a building according to an embodiment of the present application, and the process includes the following steps S200-S230:

[0033] Step S200, determining the energy consumption per unit area and the carbon emission per unit area of ​​the building according to the area and energy usage of the building to be evaluated.

[0034] Specifically, in order to conduct an accurate assessment of the energy conservation and emission reduction potential in the future, it is first necessary to collect the energy consumption data of the building to be assessed, such as electricity consumption, gas consumption, and purchased heat, and record the actual area of ​​the building.

[0035] Step S210, determining the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area.

[0036] Among them, the category to which a building belongs is related to the purpose of the building.

[0037] Specifically, the energy-carbon ratio factor is an indicator that measures the relative relationship between the energy consumption per unit area and the carbon emissions per unit area of ​​a building, reflecting the comprehensive potential of the building in energy conservation and emission reduction. Buildings of different categories have different energy consumption and carbon emissions, so the category of the building needs to be considered.

[0038] Step S220, determining an evaluation standard according to energy consumption parameters and carbon emission parameters of a plurality of buildings of the same type in the area where the building to be evaluated is located.

[0039] Specifically, the determination of the evaluation criteria is based on the statistical analysis of the energy consumption parameters and carbon emission parameters of other buildings of the same category and in the same region as the building to be evaluated. This helps to formulate evaluation criteria that are in line with regional characteristics and building uses, and ensure the objectivity and applicability of the evaluation results. By using the energy consumption and carbon emission parameters of buildings of the same category and in the same region as the evaluation criteria, the regional adaptability and industry applicability of the evaluation method of this application are enhanced.

[0040] Step S230, determining the energy conservation and emission reduction potential of the building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor, and evaluation criteria of the building to be evaluated.

[0041] Specifically, after comprehensively considering the building's energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor and evaluation standards, by calculating the energy-to-carbon potential factor, the building's optimization potential in energy efficiency and carbon reduction can be intuitively reflected, which can provide a scientific basis for decision-making on building energy conservation and emission reduction.

[0042] In this embodiment, by quantifying the energy consumption per unit area, carbon emissions per unit area, and energy-to-carbon ratio factor of the building, and combining the average standards of similar buildings in the region, the energy-saving and emission-reduction potential of the building can be accurately evaluated. This method not only takes into account the energy consumption and carbon emissions of the building, but also takes into account the building category and regional characteristics, making the evaluation results of the energy-saving and emission-reduction potential more comprehensive and accurate. In practical applications, this method can help building managers and policy makers identify energy-saving and emission-reduction improvement points for buildings, and provide a scientific basis for formulating energy-saving and emission-reduction strategies, thereby effectively promoting the green transformation and sustainable development of the construction industry. This method comprehensively considers the energy consumption, carbon emissions, and regional characteristics of the building, and provides a scientific basis for the evaluation of the energy-saving and emission-reduction potential of the building.

[0043] In one embodiment, Figure 3 As shown, step S200 determines the energy consumption per unit area and carbon emissions per unit area of ​​the building according to the area and energy usage of the building to be evaluated. It includes: steps S300-S320:

[0044] Step S300, obtaining the area and energy usage of the building to be evaluated.

[0045] Among them, energy consumption can include the building's electricity consumption, gas consumption and purchased heat data.

[0046] For example, the annual electricity consumption, gas consumption, purchased heat and other energy consumption data of the building to be evaluated can be collected through building management systems, energy metering equipment or historical energy bills, and the total area of ​​the building can be recorded. For example, smart electricity meters, gas meters and heat meters can be used to automatically record and summarize the energy usage of the building in a year.

[0047] Step S310, converting the total energy consumption and total carbon emissions of the building to be evaluated according to the energy usage of the building to be evaluated.

[0048] Specifically, after obtaining the energy consumption data of the building, these data must be converted into unified energy consumption and carbon emission indicators to achieve a comprehensive evaluation of different energy types.

[0049] For example, the total energy consumption and total carbon emissions of the building to be evaluated can be calculated by the following formula:

[0050]

[0051] Among them, E and C represent the total energy consumption and total carbon emissions of the building respectively; Q ele , Q gas and Q heat They represent the building’s electricity consumption, gas consumption, and purchased heat respectively; and Represents the conversion factor of the corresponding energy; and Represents the carbon reduction coefficient of the corresponding energy.

[0052] Step S320, determining the energy consumption per unit area and the carbon emissions per unit area of ​​the building according to the area of ​​the building to be evaluated, the total energy consumption of the building, and the total carbon emissions of the building.

[0053] Specifically, after calculating the total energy consumption and total carbon emissions of the building, it is necessary to further combine them with the actual use area of ​​the building to obtain the energy consumption and carbon emissions per unit area, so as to eliminate the impact of the building area on the evaluation results.

[0054] For example, the energy consumption per unit area and the carbon emission per unit area can be determined by the following formula:

[0055]

[0056] Among them, E and C represent the total energy consumption and total carbon emissions of the building respectively, S represents the building area of ​​the building, and E eq is the energy consumption per unit area, C eq is the carbon emission per unit area.

[0057] In this embodiment, by obtaining the area and energy usage of the building to be evaluated, the basic data for all subsequent calculations and analyses are ensured to be accurate, providing solid data support for the subsequent energy-carbon potential assessment. By converting the total energy consumption and total carbon emissions of the building to be evaluated, different forms of energy consumption are uniformly converted into total energy consumption and total carbon emissions, which facilitates the quantitative analysis of the environmental impact of building energy use and lays the foundation for the subsequent calculation and comprehensive evaluation of unit area energy-carbon indicators. The calculation of unit area energy consumption and unit area carbon emissions can fairly evaluate the energy efficiency and carbon emissions of buildings of different sizes and eliminate the impact of area size on the assessment results. This enables the assessment results to more accurately reflect the potential for building energy-carbon optimization, facilitates horizontal comparisons between buildings of the same type, and guides the implementation of energy-saving and emission reduction measures.

[0058] In one embodiment, Figure 4 As shown, step S210 determines the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area. It includes: steps S400-S420:

[0059] Step S400: determining the category of the building to be evaluated according to the purpose of the building to be evaluated.

[0060] Specifically, the purpose of a building (such as office, commercial, medical, education, etc.) has a direct impact on its energy consumption and carbon emissions. Therefore, it is necessary to classify the building according to its purpose. Specifically, it can be classified into office buildings, commercial buildings, hospital buildings, hotel buildings and educational buildings, etc.

[0061] Step S410, looking up a table to determine the reference energy consumption per unit area and the reference carbon emission per unit area corresponding to the category to which the building to be evaluated belongs.

[0062] Specifically, find industry standards or pre-set reference values ​​for energy consumption and carbon emissions that match the building type, which serve as a benchmark for assessing the building's energy-carbon potential. The reference values ​​in industry standards provide general information about the energy consumption and carbon emissions of a specific type of building, providing a quantitative benchmark for assessing the energy-carbon potential of the building to be assessed. This helps identify whether the building exceeds or falls below the industry average in terms of energy consumption and carbon emissions, thereby determining its energy-carbon optimization potential.

[0063] For example, the minimum carbon emission intensity of various types of buildings can be determined by referring to industry standards such as "Zero Carbon Building Technical Standard (for Comments)" and "Building Carbon Emission Calculation Standard (GB / T51366-2019)". C eq0 and the minimum equivalent energy consumption per unit area E eq0 For example, as shown in Table 1 below:

[0064] Table 1. Minimum carbon emission intensity C of various types of buildings eq and the minimum equivalent energy consumption per unit area E eq surface.

[0065]

[0066]

[0067] Step S420: determining the energy-to-carbon ratio factor of the building to be evaluated according to the energy consumption per unit area and the carbon emission per unit area of ​​the building to be evaluated, as well as the reference energy consumption per unit area and the reference carbon emission per unit area.

[0068] Specifically, the energy-carbon ratio factor is a comprehensive indicator used to quantify the relative relationship between the energy consumption per unit area and the carbon emissions per unit area of ​​a building. It can reflect the comprehensive potential of a building in terms of energy conservation and emission reduction.

[0069] For example, the energy-to-carbon ratio factor can be calculated by the following formula:

[0070]

[0071] Where μ is the energy-carbon ratio factor, E eq is the energy consumption per unit area of ​​the building to be evaluated, C eq is the carbon emission per unit area of ​​the building to be assessed, C eq0 is the minimum carbon emission of this type of building, E eq0 It is the minimum equivalent energy consumption per unit area of ​​this type of building.

[0072] Molecular part (E eq -E eq0 ) / E eq0 : represents the deviation between the equivalent energy consumption per unit area of ​​the building to be evaluated and the average equivalent energy consumption per unit area of ​​the building of this category, and is expressed as a deviation ratio after standardization. eq Less than E eq0 , the numerator is negative, which means that the energy consumption of the building is lower than the standard level, otherwise it is higher than the standard level.

[0073] The denominator (C eq -C eq0 ) / C eq0 : Similar to the numerator, but here we focus on carbon emissions per unit area. It represents the normalized ratio of the carbon emissions of a single building to the average carbon emissions of buildings of the same category. If C eq Less than C eq0 , indicating that carbon emissions are below the standard level, while greater than indicates that they are above the standard level.

[0074] The calculation result of the entire energy-carbon ratio factor μ represents the comparison of the building's performance in terms of energy consumption per unit area relative to its carbon emission performance, that is, the ratio of the building's energy consumption optimization degree to its carbon emission optimization degree. Specifically:

[0075] If μ indicates that the degree of optimization of the building's energy consumption per unit area relative to the average level is greater than its degree of optimization of carbon emissions per unit area. This may indicate that the building has done a good job in energy efficiency, but the carbon emission source or type leads to a relatively small optimization space for carbon emissions. If μ, then conversely, the building's degree of optimization in carbon emissions per unit area is greater than its degree of optimization in energy consumption per unit area. This may indicate that although the building has high energy consumption, it uses low-carbon or zero-carbon energy, thereby reducing carbon emissions. If μ, it indicates that the degree of optimization of the building's energy consumption per unit area and carbon emissions per unit area is roughly equal, and its performance in energy efficiency and carbon efficiency is comparable to the average level of the same category. By calculating the energy-carbon ratio factor, the assessor can have a more comprehensive understanding of the comprehensive performance of the building in energy conservation and emission reduction, thereby identifying the advantages and disadvantages of the building in energy-carbon optimization, and providing a basis for formulating accurate energy conservation and emission reduction plans. For example, if the μ value of a building is significantly lower than 1, then the optimization direction may focus more on reducing its energy consumption rather than simply reducing carbon emissions, and vice versa. Therefore, the energy-carbon ratio factor is a powerful indicator to guide decision-making in the building industry in energy-carbon potential assessment and energy conservation and emission reduction strategy formulation.

[0076] In this embodiment, by classifying buildings by use, comparative analysis can be performed based on the energy consumption and carbon emission characteristics of buildings with the same or similar functions, thereby improving the accuracy and pertinence of the assessment. According to the use and industry standards of the building, its performance in terms of energy consumption per unit area and carbon emissions per unit area can be accurately assessed, and its energy-saving and emission reduction potential can be quantified by calculating the energy-carbon ratio factor. This assessment method based on classification and industry standards effectively overcomes the limitations of traditional single indicator assessment, provides a more comprehensive and scientific assessment perspective, and helps building managers and designers identify specific optimization directions and potential improvement measures for buildings in terms of energy-carbon optimization, and promotes the green transformation and sustainable development of the construction industry.

[0077] In one embodiment, Figure 5 As shown, step S220 determines the evaluation criteria based on the energy consumption parameters and carbon emission parameters of multiple buildings of the same type in the area where the building to be evaluated is located. It includes: steps S500-S510:

[0078] Step S500, determining the energy consumption per unit area, carbon emission per unit area, and energy-to-carbon ratio factor of multiple buildings of the same type in the area where the building to be evaluated is located.

[0079] Specifically, in order to establish an objective and practical evaluation standard, it is necessary to collect statistical data from buildings of the same category, especially the energy use and carbon emissions of these buildings. The regional characteristics of the building are taken into account. Specifically, a group of buildings with the same or similar uses as the building to be evaluated can be selected as samples in the area where the building to be evaluated is located (a specific area of ​​the city, province or country). Collect energy consumption data of these sample buildings, including electricity consumption, gas consumption, purchased heat, etc., and record their usage area. Use the above formula to calculate the energy consumption per unit area and carbon emissions per unit area of ​​each building, and then calculate the energy-carbon ratio factor.

[0080] Step S510, determining the standard unit area energy consumption, standard unit area carbon emissions, and standard energy-carbon ratio factor according to the average values ​​of unit area energy consumption, unit area carbon emissions, and energy-carbon ratio factors of multiple buildings of the same type in the area where the building to be evaluated is located.

[0081] Specifically, after collecting and calculating the energy consumption per unit area, carbon emissions per unit area and energy-to-carbon ratio factor of multiple buildings of the same category, it is necessary to calculate an average value based on these data to represent the typical energy consumption and carbon emission characteristics of this type of building in a specific area.

[0082] Among them, the evaluation standards include standard energy consumption per unit area, standard carbon emissions per unit area, and standard energy-to-carbon ratio factor.

[0083] Exemplarily, the evaluation criteria are calculated by the following formula:

[0084]

[0085] in, is the standard energy consumption per unit area of ​​multiple buildings of the same type, is the energy consumption per unit area of ​​the i-th building of the same category, is the standard carbon emissions per unit area of ​​multiple buildings of the same type. is the standard carbon emission per unit area of ​​the i-th building of the same category, Std μ is the standard energy-carbon ratio factor for multiple buildings of the same category, is the standard energy-carbon ratio factor of the i-th building of the same category, and n represents the number of buildings of this type.

[0086] In this embodiment, by determining the energy consumption per unit area, carbon emissions per unit area, and energy-carbon ratio factors of multiple buildings of the same type in the area where the building to be evaluated is located, a reference based on actual data is provided for the setting of the evaluation standard, ensuring the objectivity and rationality of the evaluation system and taking into account regional characteristics. By determining the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-carbon ratio factor, this step provides a specific and reliable reference for evaluating the energy-saving and emission-reduction potential of the building to be evaluated. These average standards reflect the energy-carbon performance trends of buildings of the same type in the area, which helps to identify and quantify the gap between the average energy consumption and carbon emissions of a building and other buildings of the same type in the area, so that its energy-saving and emission-reduction potential can be evaluated close to the actual regional situation.

[0087] In one embodiment, Figure 6 As shown, step S230 determines the energy conservation and emission reduction potential of the building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor, and evaluation criteria of the building to be evaluated. It includes: steps S600-S610:

[0088] Step S600, determining the first weight, the second weight, and the third weight corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-to-carbon ratio factor, respectively.

[0089] Specifically, when evaluating the energy-saving and emission-reduction potential of a building, it is necessary to determine the importance of each indicator (energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor), that is, their weight in the evaluation system.

[0090] For example, the entropy weight method can be used to determine the first weight, the second weight, and the third weight. The entropy weight method is an objective weighting method that can automatically assign the weight of the indicator according to the variability of the data. First, the information entropy is calculated to measure the degree of discreteness of each indicator data. Then, the weight of the indicator is calculated based on the information entropy. The higher the degree of discreteness of the indicator, the greater its weight, because such indicators provide more distinguishing information. Finally, the obtained weights are normalized to ensure that the sum of all weights is 1.

[0091] Step S610, determining the energy conservation and emission reduction potential of the building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, and energy-to-carbon ratio factor of the building to be evaluated, the differences between them and the standard energy consumption per unit area, standard carbon emissions per unit area, and standard energy-to-carbon ratio factor, as well as the first weight, the second weight, and the third weight.

[0092] Specifically, after the weights are determined, the difference between the energy-carbon index of the building to be evaluated and the evaluation standard is used, combined with the weights, to calculate its energy-carbon potential factor to quantify the building's energy-saving and emission-reduction potential.

[0093] For example, the equivalent energy consumption per unit area, building carbon emission intensity and equivalent energy consumption carbon emission factor of each building can be normalized first. The energy saving and emission reduction potential of the building to be evaluated is calculated by the following formula:

[0094] σ=ΔE eq ×ω e +ΔC eq ×ω c +Δμ×ω μ

[0095]

[0096] Δμ=μ-Std μ

[0097] Among them, ω e ,ω c and ω μ They are the weights of the equivalent energy consumption per unit area of ​​the building, the carbon emission intensity of the building, and the carbon emission factor of the equivalent energy consumption (first weight, second weight, third weight); and Std μ are the optimization criteria for building energy consumption per unit area, building carbon emissions per unit area, and energy-carbon ratio factor, respectively. eq , C eq , μ are the energy consumption per unit area, carbon emissions per unit area and energy-to-carbon ratio factor of the building to be evaluated, and σ is an indicator of the energy-saving and emission reduction potential of the building to be evaluated.

[0098] In this embodiment, by combining weights with differences, the energy-carbon potential factor can fully reflect the energy-saving and emission-reduction potential of the building to be evaluated, taking into account not only the actual performance of the building in terms of energy consumption and carbon emissions, but also the gap between these indicators and the average values ​​of the same type of buildings in the same region and the importance of different indicators. This makes the evaluation results not only quantitative, but also able to guide the direction of energy-carbon optimization of buildings, and has a direct guiding role in promoting the transformation of the construction industry towards low-carbon and high-efficiency.

[0099] In one embodiment, Figure 7 As shown, step S600 determines the first weight, the second weight, and the third weight corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-carbon ratio factor, respectively. It includes: steps S700-S710:

[0100] Step S700, determining the first information entropy, the second information entropy, and the third information entropy corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-to-carbon ratio factor, respectively.

[0101] Specifically, in the evaluation system based on the entropy weight method to determine the weights, information entropy is a key indicator to measure the degree of discreteness of indicator data. The size of information entropy reflects the variability of the data, which in turn affects the weight distribution of indicators in the evaluation system.

[0102] Step S710, determining a first weight, a second weight, and a third weight respectively according to the first information entropy, the second information entropy, and the third information entropy.

[0103] Specifically, the essence of the entropy weight method is to automatically assign weights according to the degree of variation of the indicator data. The more discrete the data is, the greater the information entropy is, and the greater the weight of the indicator is, and vice versa. The determination of the weight directly affects the final energy-carbon potential assessment results, thereby guiding the optimization direction of energy conservation and emission reduction of buildings.

[0104] For example, the information entropy is first calculated:

[0105]

[0106] Among them, P ij is the proportion of the ith indicator in the jth building, and n is the number of buildings. The indicators include energy consumption per unit area, carbon emissions per unit area, and energy-carbon ratio factor.

[0107] Then calculate the weights:

[0108] Use the value calculated by information entropy to calculate the weight ω of the i-th indicator i

[0109]

[0110] Among them, m is the number of indicators and k is the normalization coefficient, usually log(m).

[0111] Step 3: Normalize weights:

[0112] The obtained weights are normalized so that the sum of all weights is 1:

[0113]

[0114] Among them, W i is the normalized weight.

[0115] In this embodiment, by calculating the first information entropy, the second information entropy, and the third information entropy, the uncertainty or information content of each indicator data can be quantified, which is crucial for the subsequent determination of weights based on the entropy weight method, ensuring that the weight allocation can reflect the actual contribution and importance of the indicator data. By determining weights based on information entropy, the actual importance and contribution of each indicator in the energy-carbon potential assessment can be objectively reflected, avoiding the deviation that may be caused by subjective weighting, ensuring the scientificity, objectivity, and accuracy of the evaluation system, and providing a solid foundation for the quantification of building energy conservation and emission reduction potential.

[0116] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0117] In this embodiment, a device for evaluating the energy conservation and emission reduction potential of a building is also provided. The device for evaluating the energy conservation and emission reduction potential of a building is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0118] Figure 8 1 is a structural block diagram of an optional device for evaluating the energy saving and emission reduction potential of a building according to an embodiment of the present application. Figure 8 As shown, including:

[0119] The energy-carbon parameter determination module 801 is used to determine the energy consumption per unit area and the carbon emission per unit area of ​​the building according to the area and energy usage of the building to be evaluated.

[0120] The energy-carbon factor determination module 802 is used to determine the energy-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area, wherein the category of the building is related to the purpose of the building.

[0121] The evaluation standard determination module 803 is used to determine the evaluation standard according to the energy consumption parameters and carbon emission parameters of multiple buildings of the same type in the area where the building to be evaluated is located.

[0122] The energy-saving and emission-reduction potential determination module 804 is used to determine the energy-saving and emission-reduction potential of the building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor, and evaluation criteria of the building to be evaluated.

[0123] Through the above-mentioned device, the energy consumption per unit area, carbon emissions per unit area and energy-carbon ratio factor of the building are quantified, and combined with the average standards of similar buildings in the region, the energy-saving and emission-reduction potential of the building can be accurately evaluated. This method not only takes into account the energy consumption and carbon emissions of the building, but also takes into account the building category and regional characteristics, making the evaluation results of the energy-saving and emission-reduction potential more comprehensive and accurate. In practical applications, this method can help building managers and policy makers identify energy-saving and emission-reduction improvement points for buildings, provide a scientific basis for the formulation of energy-saving and emission-reduction strategies, and effectively promote the green transformation and sustainable development of the construction industry. This method comprehensively considers the energy consumption, carbon emissions and regional characteristics of the building, and provides a scientific basis for the evaluation of the energy-saving and emission-reduction potential of the building.

[0124] In an exemplary embodiment, the energy-carbon parameter determination module 801 is also used to obtain the area and energy usage of the building to be evaluated. According to the energy usage of the building to be evaluated, the total energy consumption and total carbon emissions of the building to be evaluated are converted. According to the area of ​​the building to be evaluated, the total energy consumption and total carbon emissions of the building, the energy consumption per unit area and the carbon emissions per unit area of ​​the building are determined.

[0125] In an exemplary embodiment, the energy-carbon factor determination module 802 is also used to determine the category of the building to be evaluated according to the purpose of the building to be evaluated. The reference unit area energy consumption and reference unit area carbon emission corresponding to the category of the building to be evaluated are determined by looking up a table. The energy-carbon ratio factor of the building to be evaluated is determined according to the unit area energy consumption and unit area carbon emission of the building to be evaluated, as well as the reference unit area energy consumption and reference unit area carbon emission.

[0126] In an exemplary embodiment, the evaluation standard determination module 803 is also used to determine the energy consumption per unit area, carbon emissions per unit area, and energy-carbon ratio factors of multiple buildings of the same type in the area where the building to be evaluated is located. According to the average value of the energy consumption per unit area, the average value of the carbon emissions per unit area, and the average value of the energy-carbon ratio factor of multiple buildings of the same type in the area where the building to be evaluated is located, the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-carbon ratio factor are determined. Among them, the evaluation standard includes the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-carbon ratio factor.

[0127] In an exemplary embodiment, the energy conservation and emission reduction potential determination module 804 is also used to determine the first weight, the second weight, and the third weight corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-carbon ratio factor, respectively. The energy conservation and emission reduction potential of the building to be evaluated is determined according to the energy consumption per unit area, the carbon emission per unit area, and the energy-carbon ratio factor of the building to be evaluated, and the difference between the standard energy consumption per unit area, the standard carbon emission per unit area, and the standard energy-carbon ratio factor, as well as the first weight, the second weight, and the third weight.

[0128] In an exemplary embodiment, the energy conservation and emission reduction potential determination module 804 is further used to determine the first information entropy, the second information entropy, and the third information entropy corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-carbon ratio factor, respectively. According to the first information entropy, the second information entropy, and the third information entropy, the first weight, the second weight, and the third weight are determined respectively.

[0129] An embodiment of the present application further provides a storage medium, which includes a stored program, wherein the program executes any of the above methods when it is run.

[0130] Optionally, in this embodiment, the storage medium may be configured to store program codes for executing the following steps:

[0131] S1, according to the area and energy consumption of the building to be evaluated, determine the energy consumption per unit area and carbon emissions per unit area of ​​the building.

[0132] S2. Determine the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area, wherein the category of the building is related to the purpose of the building.

[0133] S3, determining an evaluation standard according to energy consumption parameters and carbon emission parameters of multiple buildings of the same type in the area where the building to be evaluated is located.

[0134] S4, determining the energy conservation and emission reduction potential of the building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor, and evaluation criteria of the building to be evaluated.

[0135] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0136] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0137] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0138] S1, according to the area and energy consumption of the building to be evaluated, determine the energy consumption per unit area and carbon emissions per unit area of ​​the building.

[0139] S2. Determine the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area, wherein the category of the building is related to the purpose of the building.

[0140] S3, determining an evaluation standard according to energy consumption parameters and carbon emission parameters of multiple buildings of the same type in the area where the building to be evaluated is located.

[0141] S4, determining the energy conservation and emission reduction potential of the building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor, and evaluation criteria of the building to be evaluated.

[0142] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store program codes.

[0143] An embodiment of the present application further provides a computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores the computer program product, and when the computer program is executed by a processor, the steps of the method in each embodiment of the present application are implemented.

[0144] Optionally, in this embodiment, the above computer program may be configured to implement the following steps when executed by a processor:

[0145] S1, according to the area and energy consumption of the building to be evaluated, determine the energy consumption per unit area and carbon emissions per unit area of ​​the building.

[0146] S2. Determine the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area, wherein the category of the building is related to the purpose of the building.

[0147] S3, determining an evaluation standard according to energy consumption parameters and carbon emission parameters of multiple buildings of the same type in the area where the building to be evaluated is located.

[0148] S4, determining the energy conservation and emission reduction potential of the building to be evaluated based on the energy consumption per unit area, carbon emissions per unit area, energy-to-carbon ratio factor, and evaluation criteria of the building to be evaluated.

[0149] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0150] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0151] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for evaluating the energy saving and emission reduction potential of a building, characterized in that: The method comprises: Determine the energy consumption per unit area and carbon emissions per unit area of ​​the building to be evaluated based on the area and energy usage of the building to be evaluated; Determining the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area, wherein the category of the building is related to the purpose of the building; Determine the evaluation criteria based on the energy consumption parameters and carbon emission parameters of multiple buildings of the same category in the area where the building to be evaluated is located; The energy conservation and emission reduction potential of the building to be evaluated is determined according to the energy consumption per unit area, the carbon emission per unit area, the energy-to-carbon ratio factor, and the evaluation standard of the building to be evaluated.

2. The method for evaluating the energy saving and emission reduction potential of a building according to claim 1, characterized in that: Determining the energy consumption per unit area and the carbon emissions per unit area of ​​the building according to the area and energy usage of the building to be evaluated includes: Obtaining the area and energy usage of the building to be evaluated; Calculate the total energy consumption and total carbon emissions of the building to be evaluated based on the energy consumption of the building to be evaluated; The energy consumption per unit area and the carbon emissions per unit area of ​​the building are determined according to the area of ​​the building to be evaluated, the total energy consumption and the total carbon emissions of the building.

3. The method for evaluating the energy saving and emission reduction potential of a building according to claim 1, characterized in that: The step of determining the energy-to-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area includes: Determining the category of the building to be assessed according to the purpose of the building to be assessed; Look up a table to determine the reference energy consumption per unit area and the reference carbon emission per unit area corresponding to the category to which the building to be evaluated belongs; An energy-to-carbon ratio factor of the building to be evaluated is determined according to the energy consumption per unit area and the carbon emission per unit area of ​​the building to be evaluated, as well as the reference energy consumption per unit area and the reference carbon emission per unit area.

4. The method for evaluating the energy saving and emission reduction potential of a building according to claim 1, characterized in that: Determining the evaluation criteria according to the energy consumption parameters and carbon emission parameters of multiple buildings of the same type in the area where the building to be evaluated is located includes: Determine the energy consumption per unit area, carbon emissions per unit area, and energy-to-carbon ratio factors of multiple buildings of the same type in the area where the building to be evaluated is located; Determine the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-carbon ratio factor according to the average values ​​of the energy consumption per unit area, the average values ​​of the carbon emissions per unit area, and the average values ​​of the energy-carbon ratio factor of multiple buildings of the same type in the area where the building to be evaluated is located; Among them, the evaluation criteria include standard energy consumption per unit area, standard carbon emissions per unit area, and standard energy-to-carbon ratio factor.

5. The method for evaluating the energy saving and emission reduction potential of a building according to claim 4, characterized in that: Determining the energy conservation and emission reduction potential of the building to be evaluated according to the energy consumption per unit area, the carbon emission per unit area, the energy-to-carbon ratio factor, and the evaluation standard of the building to be evaluated includes: Determine a first weight, a second weight, and a third weight corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-to-carbon ratio factor, respectively; The energy conservation and emission reduction potential of the building to be evaluated is determined based on the energy consumption per unit area, carbon emissions per unit area, and energy-to-carbon ratio factor of the building to be evaluated, the differences between them and the standard energy consumption per unit area, the standard carbon emissions per unit area, and the standard energy-to-carbon ratio factor, as well as the first weight, the second weight, and the third weight.

6. The method for evaluating the energy saving and emission reduction potential of a building according to claim 5, characterized in that: The determining of the first weight, the second weight, and the third weight corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-to-carbon ratio factor, respectively, includes: Determine the first information entropy, the second information entropy, and the third information entropy corresponding to the energy consumption per unit area, the carbon emission per unit area, and the energy-to-carbon ratio factor, respectively; The first weight, the second weight, and the third weight are determined respectively according to the first information entropy, the second information entropy, and the third information entropy.

7. A device for evaluating the energy saving and emission reduction potential of a building, characterized in that: The device comprises: The energy-carbon parameter determination module is used to determine the energy consumption per unit area and the carbon emission per unit area of ​​the building according to the area and energy usage of the building to be evaluated; An energy-carbon factor determination module is used to determine the energy-carbon ratio factor of the building according to the category of the building, the energy consumption per unit area, and the carbon emission per unit area, wherein the category of the building is related to the purpose of the building; An evaluation standard determination module, used to determine the evaluation standard according to the energy consumption parameters and carbon emission parameters of multiple buildings of the same category in the area where the building to be evaluated is located; The energy-saving and emission-reduction potential determination module is used to determine the energy-saving and emission-reduction potential of the building to be evaluated based on the energy consumption per unit area, the carbon emissions per unit area, the energy-to-carbon ratio factor, and the evaluation criteria of the building to be evaluated.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6 when executed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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