CN114936736A - Transformer substation carbon footprint calculation method based on full life cycle - Google Patents
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Abstract
The invention discloses a substation carbon footprint calculation method based on a full life cycle, which comprises the following steps: counting the carbon footprint period of the transformer substation, and constructing a full life cycle block diagram of carbon emission of the transformer substation; building a building material carbon emission calculation model and an electric carbon emission calculation model according to the block diagram; analyzing the carbon emission of the transformer substation according to the two calculation models, and counting to obtain the total carbon emission of the transformer substation; the carbon footprint period of the transformer substation comprises a building material production stage, a building material transportation stage, a construction stage, an operation stage, a maintenance stage, a dismantling stage and a abandonment and recovery stage, wherein the building material production stage, the building material transportation stage, the construction stage, the dismantling stage and the abandonment and recovery stage are set as building material carbon emission, and the operation stage and the maintenance stage are set as electrical carbon emission. The method provides effective assistance for building the carbon emission evaluation standard of the transformer substation, and guides and standardizes the construction of the transformer substation power grid under the double-carbon target.
Description
Technical Field
The invention relates to the technical field of carbon emission, in particular to a method for calculating a carbon footprint of a transformer substation based on a full life cycle.
Background
The transformer substation is a key node for power grid construction, affects safe and stable operation of a power grid, and plays a very important role in guaranteeing safety and stability of the society. In the traditional planning and design scheme, the carbon emission of a transformer substation is not taken as a constraint condition, and a method for calculating the carbon footprint of the transformer substation is lacked.
Chinese patent CN 107451387A discloses a method for measuring the carbon footprint of petrochemical products, which adopts the whole life cycle process of obtaining the carbon footprint of the petrochemical products to obtain a carbon footprint model of the petrochemical products; the carbon footprint measurement model is established according to the whole life cycle process, the petrochemical product production process and the greenhouse gas emission of the unit device, the product carbon footprints in the whole plant range of an enterprise can be integrated, and the accuracy of carbon emission measurement is improved.
Disclosure of Invention
Aiming at the problem that a carbon emission measurement model for the whole life cycle of the transformer substation is lacked, the invention provides a carbon footprint calculation method for the transformer substation based on the whole life cycle, which is used for constructing a calculation model from two aspects of building material type carbon emission and electrical type carbon emission and can be used for measuring the carbon emission of each stage of the whole life cycle of the transformer substation.
The technical problem of the invention is mainly solved by the following technical scheme: the invention comprises the following steps:
s1, calculating the carbon footprint period of the transformer substation, and constructing a whole life cycle block diagram of the carbon emission of the transformer substation;
s2, building a building material carbon emission calculation model and an electric carbon emission calculation model according to the block diagram;
s3, analyzing the carbon emission of the transformer substation according to the two calculation models, and counting to obtain the total carbon emission of the transformer substation;
and in the step S1, the carbon footprint period of the power station comprises a building material production stage, a building material transportation stage, a building stage, an operation stage, a maintenance stage, a dismantling stage and a abandonment and recovery stage, wherein the building material production stage, the building material transportation stage, the building stage, the dismantling stage and the abandonment and recovery stage are set as building material carbon emission, and the operation stage and the maintenance stage are set as electrical carbon emission. In the aspect of construction, a building carbon emission calculation method is established by adopting a life cycle evaluation method, and consumption and carbon emission of each stage are analyzed by adopting a material balance method, so that a life cycle building carbon footprint calculation result is formed. In the aspect of electricity, a carbon emission calculation and evaluation method of the transformer substation is established by adopting a life cycle carbon footprint method, and the carbon emission in the production stage is calculated according to raw materials, energy and human-machine investment of equipment production; calculating the carbon emission in the transportation stage according to the transportation mode and the transportation distance; calculating the carbon emission in the installation stage according to the investment of installation materials, energy sources and an assembly manpower machine; calculating the carbon emission in the operation stage according to the operation loss and the service life of the equipment; and calculating the carbon emission in the scrapping stage according to the scrapping treatment mode of the equipment.
Preferably, the step S2 specifically includes:
s21, obtaining a building material carbon emission calculation model according to the building material carbon emission, wherein the building material carbon emission calculation model comprises carbon emission calculation formulas of a building material production stage, a building material transportation stage, a building stage, a dismantling stage and a waste and recovery stage;
and S22, obtaining an electric carbon emission calculation model according to the electric carbon emission, wherein the electric carbon emission calculation model comprises a carbon emission calculation formula of an operation stage and a maintenance stage.
The life cycle of the carbon footprint of the transformer substation is from a production stage to a transportation stage, an installation stage and an operation stage in sequence till a scrapping stage.
Preferably, the carbon emission in the building material production stage in the step S21 includes carbon emission generated by energy consumption and chemical reaction of the building material during the raw material mining process, and the calculation formula is as follows:
wherein, C mp Carbon emission in the building Material production stage, M mp，i Amount of building material for the i-th site construction, EF mp，i Carbon emission factor (kgCO) for the ith field construction 2 e/unit building material quantity). The carbon emission in the stage is determined by the using amount of the building materials and corresponding carbon emission factors, and meanwhile, according to the building carbon emission calculation standard GB/T51366-2019, the total weight of the selected main building materials for calculating the carbon emission in the building material production and transportation stage is not less than 95% of the total weight of the building materials consumed in the building.
Preferably, the carbon emission in the building material transportation stage in step S21 includes carbon emission of the transportation equipment transporting the building material from its production site to the construction site, and the calculation formula is as follows:
wherein, C mt For carbon emissions during the transport of building materials, M mt，i The amount of the i-th building material, D mt，i Transport distance, EF, for the i-th building material mt，i Carbon emission factor [ kgCO ] per unit mass transport distance in the transport mode of the ith building material 2 e/(t*km)]. The carbon emission at this stage is mainly determined by the quality of the building materials to be transported, the transport distance from the building material production site to the construction site and the transport mode.
Preferably, the carbon emission during the construction stage in step S21 includes carbon emission generated during the period from the start of construction to the acceptance of completion, and the calculation formula is as follows:
wherein, C co For carbon emissions at the construction stage, E co，i For the i-th energy consumption (kWh or kg) of the construction stage, EF co，i Carbon emission factor (kgCO) as the ith energy source 2 e/kWh or kgCO 2 e/m 2 ). The main sources of the method are energy consumption of various mechanical equipment on a construction site and carbon emission generated by energy consumption of temporary buildings such as office rooms, constructor living rooms and the like which are built according to use requirements.
Preferably, the carbon emission in the removal stage in step S21 includes carbon emission consumed by the removal equipment, and the calculation formula is as follows:
wherein, C de For carbon emission in the demolition stage E de，i The amount of energy source of the i-th stage of the demolition (kWh or kg). In the actual calculation process, the energy used in the equipment in the removal stage is difficult to count, so the empirical formula obtained by a scholars is often adopted in the calculation.
Preferably, in step S21, the carbon emission generated by the transportation of the carbon-emission construction waste in the carbon emission and recovery stage is calculated according to the following formula:
C w ＝C wd -C rd
wherein, C w For carbon emissions in the waste and recovery stage, C wd For carbon emission in the waste stage, C rd Carbon emission for the recovery stage; in the formula:
wherein eta 1 Is the recovery rate of the i-th building material, eta 2 The ratio of the recycled energy consumption of the ith building material to the original production consumption is increased;
wherein M is wd，i Amount of waste (t), D) generated for ith building demolition wd，i Transport distance (km), EF, producing waste for the ith building demolition wd，i Carbon emission factor [ kgCO ] for waste transportation mode for i-th building demolition 2 e/(km*t)]。
Other construction wastes are transported to a landfill site for landfill treatment, carbon emission is generated due to energy consumption of transportation equipment in the process, and the calculation method is similar to the calculation method of the carbon emission in the building material transportation stage.
Preferably, the carbon emission in the operation stage in the step S22 includes energy consumption for building operation, carbon compensation for renewable energy, treatment of waste and wastewater during operation, and carbon sink for greening vegetation, and the calculation formula is as follows:
C op ＝C ope +C op，ga +C op，ww +C op，cs
wherein C is op For carbon emissions in the operating phase, C op，e Carbon emissions, C, for waste treatment in the operating phase op，ww Carbon emissions, C, from the operation of stage waste water treatment op，cs Carbon for greening vegetation carbon sink in operation stageDischarging; in the formula:
wherein EY op，i ERY is the annual consumption (kg/year or kWh/year or J/year) of the class i energy during the operating phase op，j Annual production (kg/year or kWh/year or J/year) of renewable energy of class J for the operating phase B The service life (years) of the building;
wherein, GD oc The daily domestic garbage amount generated by each person in the operation stage is [ kg/(person day)]，EFG ，i Carbon emission factor (kgCO) for the i-th waste disposal mode of the operation stage 2 e/kg)，τ i The proportion (%) of the ith garbage disposal mode in the operation stage, N oc Number of people (people) building to run, D oc The number of days (days) in the building per year for the user during the operating phase;
therein, WW oc The amount of sewage (m) generated by each person in each operation stage 3 )，EF ww Carbon emission factor (kgCO) for sewage treatment mode in operation stage 2 e/m 3 )；
Wherein A is gr，i Is the area (m) of the i-th type of vegetation 2 )，EF gr，i Carbon sink factor [ kgCO ] for the i-th type of vegetation 2 e/(m 2 The year)]。
The carbon sink of the greening vegetation is mainly determined by the carbon sink capacity of different types of vegetation and the corresponding vegetation area.
Preferably, the carbon emissions of the maintenance stage in step S22 include carbon emissions generated when part of the material needs to be replaced due to the service life of the building being shorter than the building life during the operation of the building, and the calculation formula is as follows:
wherein L is m，i The service life (year) of the building material of the ith kind. Since the construction and removal are essentially performed manually during maintenance, only the carbon emissions for building material production, transport and disposal and recycling are calculated.
Preferably, in step S3, the total carbon emission of the substation is calculated by the following formula:
C lc ＝C mp +C mt +C co +C op +C ma +C de +C wd
wherein, C lc For the substation weight life cycle total carbon emission (kgCO) 2 e) .1. the And the calculation model is constructed by using an emission factor method in an authoritative national greenhouse gas list guide in IPCC 2006.
The invention has the beneficial effects that:
1. the carbon emission of each stage of the whole life cycle of the transformer substation is calculated respectively, and the carbon emission of buildings and electrical is integrated, so that the carbon emission of the whole life cycle of the transformer substation can be calculated more comprehensively and intuitively;
2. laying a foundation for the implementation of the subsequent energy-saving and emission-reducing scheme of the transformer substation;
3. providing effective assistance for building a carbon emission evaluation standard of the transformer substation;
4. provides reference for the recovery and treatment of the waste of the transformer substation.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a life cycle diagram of a substation carbon emission of the present invention.
Detailed Description
The specific embodiments described herein are merely illustrative of the spirit of the invention.
Example (b): the method for calculating the carbon footprint of the transformer substation based on the full life cycle comprises the steps of S1 counting the carbon footprint cycle of the transformer substation and constructing a full life cycle block diagram of carbon emission of the transformer substation as shown in FIG. 1;
the carbon footprint period comprises a building material production stage, a building material transportation stage, a construction stage, an operation stage, a maintenance stage, a dismantling stage and a waste and recovery stage, wherein the carbon footprint period can be divided into building material carbon emission, including the building material production stage, the building material transportation stage, the construction stage, the dismantling stage and the waste and recovery stage; and electrical carbon emissions, including an operation phase and a maintenance phase. In the aspect of construction, a building carbon emission calculation method is established by adopting a life cycle evaluation method, and consumption and carbon emission of each stage are analyzed by adopting a material balance method, so that a life cycle building carbon footprint calculation result is formed. In the aspect of electricity, a carbon emission calculation and evaluation method of the transformer substation is established by adopting a life cycle carbon footprint method, and the carbon emission in the production stage is calculated according to raw materials, energy and human-machine investment of equipment production; calculating the carbon emission in the transportation stage according to the transportation mode and the transportation distance; calculating the carbon emission in the installation stage according to the investment of installation materials, energy sources and an assembly manpower machine; calculating the carbon emission in the operation stage according to the operation loss and the service life of the equipment; and calculating the carbon emission in the scrapping stage according to the scrapping treatment mode of the equipment. And finally, integrating the carbon footprint calculation method of the building part and the carbon footprint calculation method of the electrical part to form a carbon emission calculation method system based on the whole life cycle of the transformer substation.
S2, building a building material carbon emission calculation model and an electric carbon emission calculation model according to the block diagram;
the building material carbon emission calculation model comprises carbon emission calculation formulas of a building material production stage, a building material transportation stage, a building stage, a dismantling stage and a waste and recovery stage;
the carbon emission in the building material production stage refers to the carbon emission generated by energy consumption and chemical reaction in the raw material mining and processing process of the building material. The carbon emission in the stage is determined by the using amount of the building materials and corresponding carbon emission factors, and meanwhile, according to the building carbon emission calculation standard GB/T51366-2019, the total weight of the main building materials selected by the calculation of the carbon emission in the building material production and transportation stage is not less than 95% of the total weight of the building materials consumed in the building, and the formula is as follows:
wherein, C mp Carbon emission in the building Material production stage, M mp，i The amount of the i-th construction material, EF mp，i Carbon emission factor (kgCO) for the ith field construction 2 e/unit building material amount).
The carbon emissions of the building material transport phase are mainly produced by the transport of the building material from its production site to the building construction site by means of transport equipment. The carbon emission in this stage is mainly determined by the quality of the building materials to be transported, the transport distance from the building material production site to the construction site and the transport mode, and the formula is as follows:
wherein, C mt For carbon emissions during the transport of building materials, M mt，i The amount of the i-th building material, D mt，i Transport distance, EF, for the i-th building material mt，i Carbon emission factor of unit mass transport distance [ kgCO ] in the transport mode of the ith building material 2 e/(t*km)]。
The carbon emission at the construction stage refers to the carbon emission generated from the stage from the beginning of the construction to the completion of the acceptance of the construction. The main sources of the method are energy consumption of various mechanical equipment on a construction site and carbon emission generated by energy consumption of temporary buildings such as office rooms, constructor living rooms and the like which are built according to use requirements. The formula is as follows:
wherein, C co For carbon emissions at the construction stage, E co，i For the i-th energy consumption (kWh or kg) of the construction stage, EF co，i Carbon emission factor (kgCO) as the ith energy source 2 e/kWh or kgCO 2 e/m 2 )。
The carbon emission in the dismantling stage is mainly generated by energy consumption of dismantling equipment, and the formula is as follows:
wherein, C de For carbon emission in the demolition stage E de，i The amount of energy source of the i-th stage of the demolition (kWh or kg).
Carbon emission in the waste and recovery stage is mainly generated by outward transportation of construction waste. A large amount of construction waste is generated after the construction is dismantled, and part of the construction waste can be recycled after being treated, and the part is the carbon emission reduction amount. Other construction wastes are transported to a landfill site for landfill treatment, and carbon emission is generated due to energy consumption of transportation equipment in the process, and the calculation method is similar to the calculation of the carbon emission in the building material transportation stage. In contrast, the reject and recycle stages also take into account the recovery rate of each building material as compared to the calculation at the building material transport stage, and the formula is as follows:
C w ＝C wd -C rd
wherein, C w For carbon emissions in the waste and recovery stage, C wd For carbon emission in the waste stage, C rd Carbon emission for the recovery stage; in the formula:
wherein eta 1 Is the recovery rate of the i-th building material, eta 2 The ratio of the recycled energy consumption of the ith building material to the original production consumption;
wherein, M wd，i Amount of waste (t), D) generated for ith building demolition wd，i Transport distance (km), EF, producing waste for the ith building demolition wd，i Carbon emission factor [ kgCO ] for waste transportation mode for i-th building demolition 2 e/(km*t)]。
The electric carbon emission calculation model comprises a carbon emission calculation formula of an operation stage and a maintenance stage.
The carbon emission in the operation stage mainly comprises building operation energy consumption, renewable energy carbon compensation, treatment of wastes and wastewater in the operation process and greening vegetation carbon sink, and the formula is as follows:
C op ＝C op，e +Co p，ga +C op，ww +Co p，cs
wherein C is op For carbon emissions in the operating phase, C op，e Carbon emissions for waste treatment in the operating phase, C op，ww Carbon emissions, C, from the operation of stage waste water treatment op，cs Carbon emission for greening vegetation carbon sink in the operation stage; in the formula:
wherein EY op，i ERY is the annual consumption (kg/year or kWh/year or J/year) of the class i energy sources during the operating phase op，j Annual production (kg/year or kWh/year or J/year) of renewable energy of class J for the operating phase B The service life (years) of the building; the carbon emission generated by energy consumption in the operation stage consists of two parts: one part is carbon emission generated by energy consumption equipment such as an air conditioning system, a lighting system, hot water and the like of a building; the other part is carbon compensation generated by renewable energy sources such as solar photovoltaic systems, wind power generation equipment and the like through power generation;
wherein, GD oc The daily domestic garbage amount generated by each person in the operation stage is [ kg/(person x day)]，EF G，i Carbon emission factor (kgCO) for the i-th waste disposal mode of the operation stage 2 e/kg)，τ i The proportion (%) of the ith garbage disposal mode in the operation stage, N oc Number of people (people) building to run, D oc The number of days (days) in the building per year for the user during the operating phase;
therein, WW oc The amount of sewage (m) generated by each person in each operation stage 3 )，EF ww Carbon emission factor (kgCO) for sewage treatment mode in operation stage 2 e/m 3 )；
Wherein A is gr，i Is the area (m) of the i-th type of vegetation 2 )，EF gr，i Carbon sink factor [ kgCO ] for the i-th type of vegetation 2 e/(m 2 The year)]. During the operational phase, the greens and vegetation in the field area can absorb and store carbon dioxide from the air, forming a carbon sink. The carbon sink of the greening vegetation is mainly determined by the carbon sink capacity of different types of vegetation and the corresponding vegetation area.
The carbon emission in the maintenance stage refers to the carbon emission generated when part of materials need to be replaced because the service life of the materials is shorter than that of the building during the operation of the building. The carbon emissions at this stage can be summarized as carbon emissions generated during production, transportation, construction and demolition of the building material to be replaced. Because the construction and the dismantling are basically completed manually during the maintenance, the carbon emission of building material production, transportation, abandonment and recovery is only calculated, and the formula is as follows:
wherein L is m，i The service life (year) of the building material of the ith kind.
As shown in fig. 2, in the whole life cycle block diagram of the carbon emission of the substation, the carbon footprint mainly includes recycling from building material production to building material transportation to construction to operation maintenance to removal and recovery, and also includes input resource loss and energy loss, and output water pollution, air pollution and solid waste, so the following formula is used for comprehensive statistics of the carbon emission:
C lc ＝C mp +C mt +C co +C op +C ma +C de +C wd
wherein, C lc For the substation weight life cycle total carbon emission (kgCO) 2 e)。
Various modifications or additions may be made or substituted in a similar manner to the specific embodiments described herein by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the claims set out below.
Although terms such as building material carbon emission calculation model, electrical carbon emission calculation model, building material production phase, building material transportation phase, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. A transformer substation carbon footprint calculation method based on a full life cycle is characterized by comprising the following steps:
s1, counting the carbon footprint period of the transformer substation, and constructing a full life cycle block diagram of carbon emission of the transformer substation;
s2, building a building material carbon emission calculation model and an electric carbon emission calculation model according to the block diagram;
s3, analyzing the carbon emission of the transformer substation according to the two calculation models, and counting to obtain the total carbon emission of the transformer substation;
and in the step S1, the carbon footprint period of the power station comprises a building material production stage, a building material transportation stage, a building stage, an operation stage, a maintenance stage, a dismantling stage and a abandonment and recovery stage, wherein the building material production stage, the building material transportation stage, the building stage, the dismantling stage and the abandonment and recovery stage are set as building material carbon emission, and the operation stage and the maintenance stage are set as electrical carbon emission.
2. The method for calculating the carbon footprint of the substation based on the full life cycle of claim 1, wherein the step S2 specifically includes:
s21, obtaining a building material carbon emission calculation model according to the building material carbon emission, wherein the building material carbon emission calculation model comprises carbon emission calculation formulas of a building material production stage, a building material transportation stage, a building stage, a dismantling stage and a waste and recovery stage;
and S22, obtaining an electric carbon emission calculation model according to the electric carbon emission, wherein the electric carbon emission calculation model comprises a carbon emission calculation formula of an operation stage and a maintenance stage.
3. The method for calculating the carbon footprint of the substation based on the full life cycle of claim 2, wherein the carbon emission in the building material production stage in the step S21 includes carbon emission of the building material due to energy consumption and chemical reaction during the raw material mining process, and the calculation formula is as follows:
wherein, C mp M carbon emission in the building Material production stage mp，i The amount of the i-th construction material, EF mp，i Carbon emission factor (kgCO) for the ith site operation 2 e/unit building material quantity).
4. The full-life-cycle-based substation carbon footprint calculation method according to claim 2, wherein the carbon emission in the building material transportation stage in the step S21 includes carbon emission of transportation equipment transporting the building material from its production site to a building construction site, and the calculation formula is as follows:
wherein, C mt For carbon emissions during the transport of building materials, M mt，i The amount of the i-th building material, D mt，i Transportation distance, EF, for the i-th building material mt，i Carbon emission factor of unit mass transport distance [ kgCO ] in the transport mode of the ith building material 2 e/(t*km)]。
5. The full-life cycle based substation carbon footprint calculation method according to claim 2, wherein the carbon emissions during the construction phase in step S21 include carbon emissions generated during the phase from the start of construction to the completion of acceptance, and the calculation formula is as follows:
wherein, C co For carbon emissions at the construction stage, E co，i For the i-th energy consumption (kWh or kg) of the construction stage, EF co，i Carbon emission factor (kgCO) as the ith energy source 2 e/kWh or kgCO 2 e/m 2 )。
6. The method for calculating the carbon footprint of the substation based on the full life cycle of claim 2, wherein the carbon emission in the demolition stage in the step S21 includes carbon emission consumed by demolition equipment, and the calculation formula is as follows:
wherein, C de For carbon emission in the demolition stage E de，i The amount of energy source of the i-th stage of the demolition (kWh or kg).
7. The method for calculating the carbon footprint of the substation based on the full life cycle of claim 2, wherein the carbon emission generated by the transportation of the carbon-emitting construction waste in the abandonment and recovery stage in the step S21 is calculated according to the following formula:
C w ＝C wd -C rd
wherein, C w For carbon emissions in the waste and recovery stage, C wd For carbon emission in the waste stage, C rd Carbon emissions for the recovery stage; in the formula:
wherein eta 1 Is the recovery rate of the i-th building material, eta 2 The ratio of the recycled energy consumption of the ith building material to the original production consumption;
wherein M is wd，i Amount of waste produced for ith building demolition (t), D wd，i Transport distance (km), EF, of waste produced for ith building demolition wd，i Carbon emission factor [ kgCO ] for waste transportation mode for i-th building demolition 2 e/(km*t)]。
8. The method for calculating the carbon footprint of the substation based on the full life cycle of claim 2, wherein the carbon emission in the operation stage in the step S22 includes energy consumption for building operation, carbon compensation for renewable energy, treatment of waste and wastewater during operation, and carbon sink for greening vegetation, and the calculation formula is as follows:
C op ＝C op.e +C op，ga +C op，ww +C op，cs
wherein C is op For carbon emissions in the operating phase, C op.e Carbon emissions for waste treatment in the operating phase, C op，ww Carbon emissions for the treatment of waste water in the operating phase, C op，cs Carbon emission for greening vegetation carbon sink in the operation stage; in the formula:
wherein EY op，i ERY is the annual consumption (kg/year or kWh/year or J/year) of the class i energy sources during the operating phase op，j Annual production (kg/year or kWh/year or J/year) of renewable energy of class J for the operating phase B The service life (years) of the building;
wherein, GD oc The daily domestic garbage amount generated by each person in the operation stage is [ kg/(person day)]，EF G，i Carbon emission factor (kgCO) for the i-th waste disposal mode of the operation stage 2 e/kg)，τ i The proportion (%) of the ith garbage disposal mode in the operation stage, N oc Number of people (people) building to run, D oc The number of days (days) in the building per year for the user during the operating phase;
therein, WW oc The amount of sewage (m) generated by each person in each operation stage 3 )，EF ww Carbon emission factor (kgCO) for sewage treatment mode in operation stage 2 e/m 3 )；
Wherein A is gr，i Is the area (m) of the i-th type of vegetation 2 )，EF gr，i Carbon sink factor [ kgCO ] for the i-th type of vegetation 2 e/(m 2 The year)]。
9. The method for calculating the carbon footprint of the substation based on the full life cycle of claim 2, wherein the carbon emission in the maintenance phase in the step S22 includes carbon emission generated when part of the materials need to be replaced due to the service life of the building being shorter than the building life during the operation of the building, and the calculation formula is as follows:
wherein L is m，i The service life (year) of the building material of the ith kind.
10. The method for calculating the carbon footprint of the substation based on the full life cycle of claim 1, wherein the step S3 is specifically to calculate the total carbon emission of the substation according to the following formula:
C lc ＝C mp +C mt +C co +C op +C ma +C de +C wd
wherein, C lc For the substation weight life cycle total carbon emission (kgCO) 2 e)。
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