CN116976561A - Full life cycle carbon footprint accounting method for high-voltage cable equipment - Google Patents
Full life cycle carbon footprint accounting method for high-voltage cable equipment Download PDFInfo
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Abstract
The invention aims to provide a full life cycle carbon footprint accounting method of high-voltage cable equipment, which comprehensively considers the full life cycle carbon emission of the high-voltage cable equipment, can accurately measure the carbon footprint of the high-voltage cable equipment, considers the full life cycle of production, installation, use, maintenance, waste recovery and the like of the high-voltage cable equipment, ensures the carbon emission source of the full coverage cable, provides quantitative analysis method support for the recycling of renewable materials or renewable waste materials of the products, supports the carbon footprint comparison evaluation of the high-voltage cable equipment of the same type, can support the low-carbon and green purchase of downstream users, can solve the technical problem in the carbon footprint accounting of the high-voltage cable by the method, realizes comprehensive and accurate carbon emission evaluation, and provides support for realizing lower-carbon and more sustainable development of the power industry.
Description
Technical Field
The invention relates to the technical field of electric power equipment carbon footprint accounting and sustainable development, in particular to a full life cycle carbon footprint accounting method for high-voltage cable equipment.
Background
The realization of the 'double carbon' target is not separated from a scientific and standard accounting method, and the carbon footprint accounting becomes a necessary path for products and enterprises. The electric power industry is used as a supporting industry for energy supply, is also a large household for fossil energy consumption, and statistics data show that the carbon emission of the electric power industry accounts for 40% of the carbon emission of China, wherein the contribution of an electric power transmission link to the carbon emission of the electric power industry is about 5%. The high voltage cable type equipment is used as an important infrastructure for power transmission, carbon emission generated in the processes of production, transportation, use and waste recovery after retirement is an important source of environmental problems, and accounting and management of the carbon emission are of great significance for reducing the carbon emission in the power industry. However, the existing carbon footprint accounting method is mainly aimed at the carbon emission of the power generation process and the life cycle of the power equipment part, and lacks of accurate accounting for the carbon emission of the power transmission link and the whole life cycle of the specific power equipment.
(1) In the research field of the carbon footprint method of the power equipment, a part of universities and research institutions develop life cycle/carbon footprint research of cable products, and in 2009, G.P. Hammond and C.I. Jones [1] of Bass university in England compare energy consumption and carbon dioxide emission contained in the production and use processes of different raw materials used in a power grid; in 2014, life cycle evaluation study of aluminum alloy cables and copper cables [2] full life cycle evaluation is performed on aluminum alloy cables and copper cables with the same function, and multiple environmental impact indexes including carbon footprints of the two types of cables are compared. The 2022 national network Jibei electric power researches a carbon footprint accounting method 3 of the electric power equipment, and a carbon footprint accounting formula is adopted to calculate the carbon emission amount of the electric power equipment when the electric power equipment is operated; the electric power science institute of Hubei electric power limited company of the national network of 2022 researches a method 4 for measuring and calculating carbon footprint in the production and manufacturing process of the power transformer, and calculates carbon emission calculation of the transformer from cradle to gate by adopting a carbon footprint calculation formula.
(2) In terms of the carbon footprint accounting standard of the power equipment, a GB/T40093-2021 transformer product life cycle evaluation method is published in 2021 in China at present, and the terminal product transformer and the intermediate product transformer can respectively develop LCA evaluation of a full life cycle and a partial life cycle. No carbon footprint accounting criteria have been queried for cable-like devices.
In summary, the existing carbon footprint/carbon emission accounting methods for electrical equipment and cable-like equipment have the following drawbacks:
(1) The functional unit and the reference flow are not clear, and specific functional units and reference flows are specified for two products of a cable and a cable accessory for cable equipment.
(2) The boundary of the system is incomplete, and the existing accounting method only considers the carbon emission in the production process or a certain link of the product, ignores the carbon emission in the using and waste recycling processes, and cannot comprehensively measure the carbon emission level.
(3) The accounting content is unclear, the existing accounting method only has fuzzy accounting content, and the problems of the regeneration circulation method are not considered, so that accurate accounting cannot be performed, and the application of comparability is lacking.
(4) The comparability is poor, the existing accounting method does not provide an application scene for carrying out carbon footprint comparison evaluation on the same type of cable equipment according to the functionality of the cable equipment, and low-carbon and green purchasing of downstream users cannot be effectively supported.
Disclosure of Invention
The invention aims to provide a full life cycle carbon footprint accounting method for high-voltage cable equipment, which is used for solving the problems in the background technology and is convenient to popularize.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the full life cycle carbon footprint accounting method of the high-voltage cable equipment comprises the steps of determining an accounting object and target range, collecting data, calculating carbon footprint, analyzing carbon footprint and comparing and grading carbon footprint;
the specific accounting object and target range comprises a cable and a cable accessory, wherein the cable comprises raw material acquisition, product production, product transportation, product use and product waste recovery, and the cable accessory comprises raw material acquisition and product production;
the data collection is carried out according to life cycle stages defined by the system boundary of the high-voltage cable type equipment, and comprises activity data and upstream/downstream produced carbon footprint values, and the data collection comprises the following steps:
step one: collecting various data in the production process of high-voltage cable equipment, including raw material usage amount and purchase transportation information, production equipment energy consumption, production site greenhouse gas emission, waste emission, renewable waste generation and production process parameters;
step two: collecting various data in the transportation process of the high-voltage cable equipment, including transportation route, transportation weight, transportation means or energy consumption;
step three: collecting various data in the use process of high-voltage cable equipment, including installation energy consumption and transmission loss;
step four: and collecting various data in the waste recovery process of the high-voltage cable equipment, including recovery transportation route, transportation weight and transportation means, and energy consumption, renewable waste generation and waste discharge in the recovery process.
Further, the carbon footprint calculation is performed, the total life cycle carbon emission calculation of the cable equipment is performed according to various data, and the overall calculation formula is as follows:
cable plant carbon footprint = raw material acquisition carbon footprint + production stage carbon footprint + transportation stage carbon footprint + usage stage carbon footprint + waste recovery stage carbon footprint;
the carbon emission calculation formula of each step is as follows:
(1) Raw material acquisition carbon footprint = raw material consumption x raw material production carbon footprint + fossil energy consumption x fossil energy production carbon footprint + transport weight x transport distance x transport mode carbon footprint;
(2) Production phase carbon footprint = non-fossil energy consumption amount x non-fossil energy production carbon footprint + fossil energy combustion carbon emission amount + process carbon emission amount + waste emission amount x waste disposal carbon footprint-renewable waste production amount x substituted virgin material production carbon footprint;
(3) Transportation phase carbon footprint = energy consumption x energy production carbon footprint + fossil energy combustion carbon emission + transportation weight x transportation distance x transportation mode carbon footprint;
(4) Use phase carbon footprint = energy consumption energy production carbon footprint;
(5) Waste recovery process carbon footprint = energy consumption x energy production carbon footprint + fossil energy combustion carbon emission + waste discharge x waste disposal carbon footprint-renewable waste production x substituted virgin material production carbon footprint.
Further, the carbon footprint analysis analyzes the calculation result according to the full life cycle calculation result and the life cycle stage and process, so that a production enterprise can intuitively know the carbon emission condition in each stage and process of the life cycle of the high-voltage cable equipment, and take corresponding emission reduction measures.
Further, the carbon footprint comparison rating can be used for comparing the existing carbon footprint results of the same type of high-voltage cable equipment with the carbon footprint of the same type of high-voltage cable equipment with the same function, wherein the meaning of the same function unit is 'same current carrying capacity', and the corresponding carbon footprint results = the carbon footprint/rated current carrying capacity of the cable equipment.
Further, the working steps comprise a data collection stage, a model construction stage, a calculation stage, an analysis and evaluation stage, an application stage, a monitoring and updating stage and a tool system research and development stage;
the data collection phase comprises the following steps:
step one: determining a research target, defining the purpose, problem or hypothesis of research or analysis, and determining the type and scope of the required data;
step two: making a data collection plan, and making a detailed data collection plan, wherein the data collection plan comprises a data collection time range, a sampling method, a data collection tool and technology, and required manpower and material resource;
step three: selecting a data source, and determining the data source, wherein the data source comprises an existing data set, a database, experimental results, literature investigation and questionnaire investigation;
step four: data acquisition is carried out, and data acquisition work is carried out according to a data acquisition plan and a designed data acquisition tool, wherein the data acquisition work comprises field investigation, experimental operation, interview and observation;
step five: recording and arranging data, namely recording and arranging the acquired data to ensure the integrity and accuracy of the data, wherein the data comprises data input, coding, classification, cleaning and abnormal value removal;
step six: data storage and management, selecting an appropriate data storage and management system to ensure the security and traceability of data, including using electronic forms, databases and cloud storage to store and manage data;
step seven: data verification and quality control, namely verifying and controlling the quality of the acquired data, checking the accuracy, consistency and integrity of the data, and identifying and correcting possible errors;
and the model construction stage writes the collected activity data of the high-voltage cable equipment and the carbon footprint value thereof into different life cycle stages according to a carbon footprint calculation formula, so as to construct a complete carbon footprint accounting model. At this stage, the type and source of carbon emissions at each stage need to be specified and recorded in detail;
the calculation phase comprises the following working steps:
step one: determining a calculation range and determining a carbon footprint calculation range;
step two: determining influencing factors, identifying and determining key activities and factors related to the calculation range, wherein the factors comprise energy consumption, waste emission, transportation and supply chains, and classifying and quantifying each factor respectively;
step three: developing a calculation model, and developing a carbon footprint calculation model according to the calculation range and the identified influence factors;
step four: data processing and unit conversion, wherein collected data are processed and arranged, so that the accuracy and consistency of the data are ensured, and necessary unit conversion is performed;
step five: calculating the carbon emission, calculating the carbon emission according to the calculation model and the processed data, applying a corresponding formula or algorithm, and multiplying each item of data by a carbon emission factor to obtain a corresponding carbon footprint;
the evaluation phase comprises the following working steps:
step one: the result analysis and interpretation, the analysis and calculation of the carbon footprint result, and the interpretation of the meaning and influence thereof, can compare the carbon emission at different life cycle stages, identify main contribution factors, and evaluate the influence of different methods, materials or processes on the carbon footprint;
step two: performing sensitivity analysis and verification, performing sensitivity analysis, evaluating the influence degree of different factors and parameters on a calculation result, and performing verification step to ensure the accuracy and reliability of a calculation model;
step three: results report and communication, writing report or visual presentation of calculation results and evaluation process, to related stakeholders to communicate evaluation results, in addition, to communicate with stakeholders to provide description of evaluation methods, assumptions and limitations;
the application stage applies the carbon footprint accounting result to life cycle optimization design and process management of the high-voltage cable equipment to reduce carbon emission, including reducing the carbon emission of the high-voltage cable equipment by optimizing raw material selection, improving manufacturing process, improving energy utilization efficiency and reducing waste emission;
and in the monitoring and updating stage, the carbon emission of the high-voltage cable equipment is continuously monitored, data and evaluation results are updated periodically, whether the environmental protection performance of the equipment reaches an expected target or not is judged by comparing actual emission data with target emission data, and the actual situation is adjusted and improved.
In the development stage of the tool system, the development of the tool system is evaluated according to the carbon footprint so as to realize batch and normalized accounting and management, and the related accounting result can be applied to government purchasing and carbon accounting and management in the power industry, so that a more effective environment protection strategy is formulated.
Further, the transmission loss includes a laying mode, a current carrying capacity, an operating voltage, an ambient temperature, and a power factor.
As an improvement, the invention has the following beneficial effects:
the full life cycle carbon footprint accounting method of the high-voltage cable equipment comprehensively considers the full life cycle carbon emission of the high-voltage cable equipment, can accurately measure the carbon footprint of the high-voltage cable equipment, takes the full life cycle of production, installation, use, maintenance and the like of the high-voltage cable equipment into consideration, ensures the carbon emission source of the cable to be fully covered, and provides a detailed carbon emission calculating method for each stage of the life cycleThe method has strong operability. Detailed recording and calculation of data for each stage of the cable full life cycle, including raw material acquisition, product manufacture, transportation, use and disposal during cable productionReturning to Collecting and recoveringThe method and the device can solve the technical problem in the calculation of the carbon footprint of the high-voltage cable, realize comprehensive and accurate carbon emission evaluation, and provide support for the lower-carbon and more sustainable development of the power industry.
Drawings
FIG. 1 is a schematic workflow diagram of a full life cycle carbon footprint accounting method for high voltage cable-like devices of the present invention;
Detailed Description
In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The full life cycle carbon footprint accounting method of the high-voltage cable equipment comprises the steps of determining an accounting object and target range, collecting data, calculating carbon footprint, analyzing carbon footprint and comparing and grading carbon footprint;
the specific accounting object and target range comprises a cable and a cable accessory, wherein the cable comprises raw material acquisition, product production, product transportation, product use and product waste recovery, and the cable accessory comprises raw material acquisition and product production;
data collection, including activity data and upstream/downstream produced carbon footprint values, is performed at lifecycle stages defined by high voltage cable-like equipment system boundaries, comprising the steps of:
step one: collecting various data in the production process of high-voltage cable equipment, including raw material usage amount and purchase transportation information, production equipment energy consumption, production site greenhouse gas emission, waste emission, renewable waste generation and production process parameters;
step two: collecting various data in the transportation process of the high-voltage cable equipment, including transportation route, transportation weight, transportation means or energy consumption;
step three: collecting various data in the use process of high-voltage cable equipment, including installation energy consumption and transmission loss;
step four: and collecting various data in the waste recovery process of the high-voltage cable equipment, including recovery transportation route, transportation weight and transportation means, and energy consumption, renewable waste generation and waste discharge in the recovery process.
Carbon footprint calculation, namely carrying out full life cycle carbon emission calculation of cable equipment according to various data, wherein the overall calculation formula is as follows:
cable plant carbon footprint = raw material acquisition carbon footprint + production stage carbon footprint + transportation stage carbon footprint + usage stage carbon footprint + waste recovery stage carbon footprint;
the calculation formula of the carbon emission of each step is as follows:
(1) Raw material acquisition carbon footprint = raw material consumption x raw material production carbon footprint + fossil energy consumption x fossil energy production carbon footprint + transport weight x transport distance x transport mode carbon footprint;
(2) Production phase carbon footprint = non-fossil energy consumption amount x non-fossil energy production carbon footprint + fossil energy combustion carbon emission amount + process carbon emission amount + waste emission amount x waste disposal carbon footprint-renewable waste production amount x substituted virgin material production carbon footprint;
(3) Transportation phase carbon footprint = energy consumption x energy production carbon footprint + fossil energy combustion carbon emission + transportation weight x transportation distance x transportation mode carbon footprint;
(4) Use phase carbon footprint = energy consumption energy production carbon footprint;
(5) Waste recovery process carbon footprint = energy consumption x energy production carbon footprint + fossil energy combustion carbon emission + waste discharge x waste disposal carbon footprint-renewable waste production x substituted virgin material production carbon footprint.
And analyzing the calculation result according to the full life cycle calculation result and the life cycle stage and process, so that a production enterprise can intuitively know the carbon emission condition in each stage and process of the life cycle of the high-voltage cable equipment, and take corresponding emission reduction measures.
And (3) comparing and grading the carbon footprint, wherein for the carbon footprints of the high-voltage cable equipment of the same type, the existing carbon footprint results can be converted into the carbon footprints of the high-voltage cable equipment with the same function for comparison, and the meaning of the same functional unit is that the carbon footprints have the same current-carrying capacity, and the corresponding carbon footprint results = the carbon footprints/rated current-carrying capacity of the cable equipment.
The working steps comprise a data collection stage, a model construction stage, a calculation stage, an analysis and evaluation stage, an application stage, a monitoring and updating stage and a tool system research and development stage;
the data collection phase comprises the following steps:
step one: determining a research target, defining the purpose, problem or hypothesis of research or analysis, and determining the type and scope of the required data;
step two: making a data collection plan, and making a detailed data collection plan, wherein the data collection plan comprises a data collection time range, a sampling method, a data collection tool and technology, and required manpower and material resource;
step three: selecting a data source, and determining the data source, wherein the data source comprises an existing data set, a database, experimental results, literature investigation and questionnaire investigation;
step four: data acquisition is carried out, and data acquisition work is carried out according to a data acquisition plan and a designed data acquisition tool, wherein the data acquisition work comprises field investigation, experimental operation, interview and observation;
step five: recording and arranging data, namely recording and arranging the acquired data to ensure the integrity and accuracy of the data, wherein the data comprises data input, coding, classification, cleaning and abnormal value removal;
step six: data storage and management, selecting an appropriate data storage and management system to ensure the security and traceability of data, including using electronic forms, databases and cloud storage to store and manage data;
step seven: data verification and quality control, namely verifying and controlling the quality of the acquired data, checking the accuracy, consistency and integrity of the data, and identifying and correcting possible errors;
and the model construction stage writes the collected activity data and the carbon footprint value of the high-voltage cable equipment into different life cycle stages according to a carbon footprint calculation formula, so as to construct a complete carbon footprint accounting model. At this stage, the type and source of carbon emissions at each stage need to be specified and recorded in detail;
the calculation phase comprises the following working steps:
step one: determining a calculation range and determining a carbon footprint calculation range;
step two: determining influencing factors, identifying and determining key activities and factors related to the calculation range, wherein the factors comprise energy consumption, waste emission, transportation and supply chains, and classifying and quantifying each factor respectively;
step three: developing a calculation model, and developing a carbon footprint calculation model according to the calculation range and the identified influence factors;
step four: data processing and unit conversion, wherein collected data are processed and arranged, so that the accuracy and consistency of the data are ensured, and necessary unit conversion is performed;
step five: calculating the carbon emission, calculating the carbon emission according to the calculation model and the processed data, applying a corresponding formula or algorithm, and multiplying each item of data by a carbon emission factor to obtain a corresponding carbon footprint;
the evaluation phase comprises the following working steps:
step one: the result analysis and interpretation, the analysis and calculation of the carbon footprint result, and the interpretation of the meaning and influence thereof, can compare the carbon emission at different life cycle stages, identify main contribution factors, and evaluate the influence of different methods, materials or processes on the carbon footprint;
step two: performing sensitivity analysis and verification, performing sensitivity analysis, evaluating the influence degree of different factors and parameters on a calculation result, and performing verification step to ensure the accuracy and reliability of a calculation model;
step three: results report and communication, writing report or visual presentation of calculation results and evaluation process, to related stakeholders to communicate evaluation results, in addition, to communicate with stakeholders to provide description of evaluation methods, assumptions and limitations;
the application stage applies the carbon footprint accounting result to life cycle optimization design and process management of the high-voltage cable equipment to reduce carbon emission, including reducing the carbon emission of the high-voltage cable equipment by optimizing raw material selection, improving manufacturing process, improving energy utilization efficiency and reducing waste emission;
and in the monitoring and updating stage, the carbon emission of the high-voltage cable equipment is continuously monitored, data and evaluation results are updated periodically, whether the environmental protection performance of the equipment reaches an expected target or not is judged by comparing actual emission data with target emission data, and the actual situation is adjusted and improved.
In the development stage of the tool system, the development of the tool system is evaluated according to the carbon footprint so as to realize batch and normalized accounting and management, and the related accounting result can be applied to government purchasing and carbon accounting and management in the power industry, so that a more effective environment protection strategy is formulated.
Transmission losses include laying mode, current-carrying capacity, operating voltage, ambient temperature and power factor.
The above description is illustrative of the present invention and is not intended to be limiting, but is to be construed as being included within the spirit and scope of the present invention.
Claims (6)
1. The full life cycle carbon footprint accounting method of the high-voltage cable equipment comprises the steps of determining an accounting object and a target range, collecting data, calculating, -analyzing and grading the carbon footprint;
the specific accounting object and target range comprises a cable and a cable accessory, wherein the cable comprises raw material acquisition, product production, product transportation, product use and product waste recovery, and the cable accessory comprises raw material acquisition and product production;
the data collection is carried out according to life cycle stages defined by the system boundary of the high-voltage cable type equipment, and comprises activity data and upstream/downstream produced carbon footprint values, and the data collection comprises the following steps:
step one: collecting various data in the production process of high-voltage cable equipment, including raw material usage amount and purchase transportation information, production equipment energy consumption, production site greenhouse gas emission, waste emission, renewable waste generation and production process parameters;
step two: collecting various data in the transportation process of the high-voltage cable equipment, including transportation route, transportation weight, transportation means or energy consumption;
step three: collecting various data in the use process of high-voltage cable equipment, including installation energy consumption and transmission loss;
step four: and collecting various data in the waste recovery process of the high-voltage cable equipment, including recovery transportation route, transportation weight and transportation means, and energy consumption, renewable waste generation and waste discharge in the recovery process.
2. The method for calculating the full life cycle carbon footprint of the high voltage cable plant according to claim 1, wherein the carbon footprint calculation is performed according to various data, and the total life cycle carbon emission calculation formula of the cable plant is as follows:
cable plant carbon footprint = raw material acquisition carbon footprint + production stage carbon footprint + transportation stage carbon footprint + usage stage carbon footprint + waste recovery stage carbon footprint;
the carbon emission calculation formula of each step is as follows:
(1) Raw material acquisition carbon footprint = raw material consumption x raw material production carbon footprint + fossil energy consumption x fossil energy production carbon footprint + transport weight x transport distance x transport mode carbon footprint;
(2) Production phase carbon footprint = non-fossil energy consumption amount x non-fossil energy production carbon footprint + fossil energy combustion carbon emission amount + process carbon emission amount + waste emission amount x waste disposal carbon footprint-renewable waste production amount x substituted virgin material production carbon footprint;
(3) Transportation phase carbon footprint = energy consumption x energy production carbon footprint + fossil energy combustion carbon emission + transportation weight x transportation distance x transportation mode carbon footprint;
(4) Use phase carbon footprint = energy consumption energy production carbon footprint;
(5) Waste recovery process carbon footprint = energy consumption x energy production carbon footprint + fossil energy combustion carbon emission + waste discharge x waste disposal carbon footprint-renewable waste production x substituted virgin material production carbon footprint.
3. The full life cycle carbon footprint accounting method of high voltage cable equipment according to claim 1, wherein the carbon footprint analysis analyzes the calculation result according to the life cycle stage and process according to the full life cycle calculation result, so that a production enterprise can intuitively know the carbon emission condition in each stage and process of the life cycle of the high voltage cable equipment, and take corresponding emission reduction measures.
4. The full life cycle carbon footprint accounting method of high voltage cable type equipment according to claim 1, wherein the carbon footprint comparison rating is used for comparing existing carbon footprint results of the same type of high voltage cable type equipment into carbon footprints of high voltage cable type equipment with the same function, and the meaning of the same functional unit is "having the same current carrying capacity", and corresponding carbon footprint results = cable type equipment carbon footprint/rated current carrying capacity.
5. The full life cycle carbon footprint accounting method of a high voltage cable plant according to any one of claims 1-4, the working steps comprising a data collection stage, a model construction stage, a calculation stage, an analysis evaluation stage, an application stage, a monitoring and updating stage and a tool system development stage;
the data collection phase comprises the following steps:
step one: determining a research target, defining the purpose, problem or hypothesis of research or analysis, and determining the type and scope of the required data;
step two: making a data collection plan, and making a detailed data collection plan, wherein the data collection plan comprises a data collection time range, a sampling method, a data collection tool and technology, and required manpower and material resource;
step three: selecting a data source, and determining the data source, wherein the data source comprises an existing data set, a database, experimental results, literature investigation and questionnaire investigation;
step four: data acquisition is carried out, and data acquisition work is carried out according to a data acquisition plan and a designed data acquisition tool, wherein the data acquisition work comprises field investigation, experimental operation, interview and observation;
step five: recording and arranging data, namely recording and arranging the acquired data to ensure the integrity and accuracy of the data, wherein the data comprises data input, coding, classification, cleaning and abnormal value removal;
step six: data storage and management, selecting an appropriate data storage and management system to ensure the security and traceability of data, including using electronic forms, databases and cloud storage to store and manage data;
step seven: data verification and quality control, namely verifying and controlling the quality of the acquired data, checking the accuracy, consistency and integrity of the data, and identifying and correcting possible errors;
and the model construction stage writes the collected activity data of the high-voltage cable equipment and the carbon footprint value thereof into different life cycle stages according to a carbon footprint calculation formula, so as to construct a complete carbon footprint accounting model. At this stage, the type and source of carbon emissions at each stage need to be specified and recorded in detail;
the calculation phase comprises the following working steps:
step one: determining a calculation range and determining a carbon footprint calculation range;
step two: determining influencing factors, identifying and determining key activities and factors related to the calculation range, wherein the factors comprise energy consumption, waste emission, transportation and supply chains, and classifying and quantifying each factor respectively;
step three: developing a calculation model, and developing a carbon footprint calculation model according to the calculation range and the identified influence factors;
step four: data processing and unit conversion, wherein collected data are processed and arranged, so that the accuracy and consistency of the data are ensured, and necessary unit conversion is performed;
step five: calculating the carbon emission, calculating the carbon emission according to the calculation model and the processed data, applying a corresponding formula or algorithm, and multiplying each item of data by a carbon emission factor to obtain a corresponding carbon footprint;
the evaluation phase comprises the following working steps:
step one: the result analysis and interpretation, the analysis and calculation of the carbon footprint result, and the interpretation of the meaning and influence thereof, can compare the carbon emission at different life cycle stages, identify main contribution factors, and evaluate the influence of different methods, materials or processes on the carbon footprint;
step two: performing sensitivity analysis and verification, performing sensitivity analysis, evaluating the influence degree of different factors and parameters on a calculation result, and performing verification step to ensure the accuracy and reliability of a calculation model;
step three: results report and communication, writing report or visual presentation of calculation results and evaluation process, to related stakeholders to communicate evaluation results, in addition, to communicate with stakeholders to provide description of evaluation methods, assumptions and limitations;
the application stage applies the carbon footprint accounting result to life cycle optimization design and process management of the high-voltage cable equipment to reduce carbon emission, including reducing the carbon emission of the high-voltage cable equipment by optimizing raw material selection, improving manufacturing process, improving energy utilization efficiency and reducing waste emission;
and in the monitoring and updating stage, the carbon emission of the high-voltage cable equipment is continuously monitored, data and evaluation results are updated periodically, whether the environmental protection performance of the equipment reaches an expected target or not is judged by comparing actual emission data with target emission data, and the actual situation is adjusted and improved.
In the development stage of the tool system, the development of the tool system is evaluated according to the carbon footprint so as to realize batch and normalized accounting and management, and the related accounting result can be applied to government purchasing and carbon accounting and management in the power industry, so that a more effective environment protection strategy is formulated.
6. The full life cycle carbon footprint accounting method of high voltage cable type equipment of claim 1, wherein said transmission loss comprises laying mode, current capacity, operating voltage, ambient temperature and power factor.
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| CN117575628A (en) * | 2023-11-21 | 2024-02-20 | 国网宁夏电力有限公司电力科学研究院 | Full life cycle carbon footprint monitoring analysis system considering upstream and downstream supply chains |
| CN117709555A (en) * | 2024-02-05 | 2024-03-15 | 国网山东省电力公司东营供电公司 | Carbon emission prediction and evaluation method and system based on transformer carbon accounting model |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117575628A (en) * | 2023-11-21 | 2024-02-20 | 国网宁夏电力有限公司电力科学研究院 | Full life cycle carbon footprint monitoring analysis system considering upstream and downstream supply chains |
| CN117709555A (en) * | 2024-02-05 | 2024-03-15 | 国网山东省电力公司东营供电公司 | Carbon emission prediction and evaluation method and system based on transformer carbon accounting model |
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