Method for excavating development potential of photovoltaic zero-carbon park

Abstract

The invention discloses a mining method for development potential of a photovoltaic zero-carbon park. The mining method comprises the following steps: step 1, acquiring a satellite map of a target area, load data of the park and solar radiation intensity of the target area; 2, calculating the carbon emission of the park according to the characteristics of the park, the load data of different building types and the load data of the park; 3, according to the characteristics of the park and different building types, photovoltaic energy installation area calculation and green plant emission reduction calculation are carried out; calculating carbon reduction emission of the park by combining solar radiation intensity and green plant distribution of the park; and 4, carrying out carbon emission and carbon reduction potential matching evaluation, calculating a development potential index Q = carbon reduction / carbon emission of the zero-carbon park by combining the carbon emission and the carbon reduction potential, and evaluating whether the park has the development potential of the zero-carbon park according to the development potential index Q. According to the method, zero-carbon park development potential evaluation is combined with carbon emission and carbon emission reduction, and guidance opinions are provided for zero-carbon park development in the region.

Description

Technical Field

[0001] The invention relates to a method for exploring the development potential of a photovoltaic zero-carbon park. Background Art

[0002] Each park is a hotspot of spatial emissions across the country, and should be regarded as a key focus for greenhouse gas emission reduction. In the park, the load demand of each building area in the park, including transportation carbon emissions, municipal carbon emissions, photovoltaic power generation and green plant emission reduction, is considered, and the installation location of photovoltaics is determined to achieve on-site consumption of photovoltaic power generation energy and zero carbon in the park. Energy transformation, zero-carbon buildings, and low-carbon transformation of transportation are the top priorities for building a zero-carbon park. The existing evaluation method only considers building carbon emissions and photovoltaic power generation, and does not explore the potential of zero-carbon parks in combination with the different conditions of each park.

[0003] The existing parks have the following problems: 1. The carbon element is not analyzed together. 2. The existing evaluation method only considers building carbon emissions and photovoltaic power generation, and does not explore the potential of zero-carbon parks in combination with the different conditions of each park. Summary of the invention

[0004] The purpose of the present invention is to provide a method for exploring the development potential of a photovoltaic zero-carbon park, in order to achieve the dual carbon goals and open a new chapter for the green and high-quality development of the park.

[0005] The technical solution adopted by the present invention is:

[0006] A method for exploring the development potential of a photovoltaic zero-carbon park, characterized by comprising the following steps:

[0007] Step 1: obtaining raw data, wherein the raw data includes a satellite map of the target area, load data of the park, and solar radiation intensity of the target area;

[0008] Step 2: Calculate the carbon emissions of the park based on the characteristics of the park in the satellite map of the target area and the load data of different building types, as well as the load data of the park obtained in step 1. Carbon emissions = building carbon emissions + transportation carbon emissions + municipal carbon emissions;

[0009] Step 3: Calculate the photovoltaic installation area and green plant emission reduction based on the characteristics of the park and different building types in the satellite map of the target area; calculate the carbon emission reduction of the park based on the solar radiation intensity and the distribution of green plants in the satellite map of the target area, where carbon emission reduction = photovoltaic carbon emission reduction + green plant carbon sink;

[0010] Step 4 is to evaluate the matching of carbon emissions and carbon reduction potential, and combine the two to calculate the development potential index Q of the zero-carbon park.

[0011]

[0012] The development potential index Q is used to evaluate whether the park has the potential to develop into a zero-carbon park.

[0013] A zero-carbon park is one where carbon emission reduction is greater than or equal to carbon emissions, that is, Q is greater than or equal to 1.

[0014] In step 2, the calculation formula for the building carbon emissions is:

[0015] Building carbon emissions = (above-ground building area * above-ground building electricity consumption index + underground building area * underground building electricity consumption index) * electricity carbon factor;

[0016] Electricity consumption index of above-ground buildings = heating electricity consumption index + cooling electricity consumption index + lighting electricity consumption index + equipment electricity consumption index + hot water electricity consumption index;

[0017] Underground building power consumption index = lighting power consumption index + exhaust system power consumption index;

[0018] Electric carbon factor = 0.5703 kgCO 2 / kWh, taken from the Corporate Greenhouse Gas Emissions Accounting Methodology and Reporting Guide for Power Generation Facilities.

[0019] In step 2, the calculation formula for traffic carbon emissions is:

[0020] Transportation carbon emissions = carbon emissions from gasoline vehicles + carbon emissions from electric vehicles;

[0021] Carbon emissions from gasoline vehicles = number of gasoline vehicles * annual mileage * fuel consumption coefficient of gasoline vehicles * gasoline carbon emission factor

[0022] Among them: fuel consumption coefficient of oil vehicle = 5.475kg / 100km;

[0023] Gasoline carbon emission factor = 3.105tCO 2 / ton;

[0024] Electric vehicle carbon emissions = number of electric vehicles * annual mileage * electric vehicle power consumption coefficient * electric carbon factor;

[0025] Among them: Electric vehicle power consumption coefficient = 13kWh / 100km;

[0026] Electric carbon factor = 0.5703 kgCO 2 / kWh.

[0027] In step 2, the municipal carbon emissions calculation formula is:

[0028] Municipal carbon emissions = carbon emissions from lighting in the area + carbon emissions from sewage treatment + carbon emissions from domestic waste treatment;

[0029] Lighting carbon emissions in the area = total lighting power * electricity usage time * electricity carbon factor;

[0030] Carbon emissions from sewage treatment = (park water supply + park drainage) * water supply and drainage power consumption index * electricity carbon factor;

[0031] Among them: the power consumption index for water supply and drainage is 0.6kWh / ton;

[0032] Carbon emissions from domestic waste treatment = amount of domestic waste used * domestic waste treatment emission coefficient;

[0033] Electric carbon factor = 0.5703 kgCO 2 / kWh;

[0034] Where: Domestic waste treatment emission coefficient = 0.549tCO 2 / ton.

[0035] In step 3, the calculation formula for photovoltaic carbon emission reduction is:

[0036] Photovoltaic carbon emission reduction = photovoltaic power generation * electricity carbon factor;

[0037] Where: Electric carbon factor = 0.5703kgCO 2 / kWh;

[0038] Photovoltaic power generation = total solar radiation on the local horizontal surface * available roof area * photovoltaic module conversion efficiency * comprehensive efficiency coefficient

[0039] Total solar radiation on the local horizontal surface: refer to the standard observation data of the local meteorological station;

[0040] Roof usable area: Roof usable area = roof area * roof usable rate * usable coefficient;

[0041] There are three situations for the roof availability of color steel tile roof: 1. No parapet, no lighting, no ventilation equipment, the roof availability is 0.7-0.8; 2. With parapet, lighting, no ventilation equipment, the roof availability is 0.5-0.7; 3. With parapet, lighting, ventilation equipment, the roof availability is 0.3-0.5; The availability coefficient of color steel tile roof is 1;

[0042] There are four situations for the roof availability of concrete roofs: 1. There is a parapet and nothing else, the roof availability is 0.9-0.95; 2. There is a parapet, elevator or stairwell, no other obstruction, the roof availability is 0.8-0.9; 3. There is a parapet, elevator or stairwell, roof pipes, no other obstruction, the roof availability is 0.7-0.8; 4. There is a parapet, elevator or stairwell and other obstructions, the roof availability is less than 0.7; The availability coefficient for concrete roofs is 1 / (PV module length L*cosβ+PV module length L*sinβ*shadow ratio), β is the installation angle of the PV module;

[0043] Photovoltaic module conversion efficiency: The conversion rate of photovoltaic modules needs to check the parameters of the selected photovoltaic modules;

[0044] Comprehensive efficiency coefficient: The comprehensive efficiency coefficient is generally 70%-85%.

[0045] In step 3, the green plant carbon sink calculation formula is:

[0046] Green plant carbon sink = green area * green plant carbon sink factor;

[0047] Among them: the green plant carbon sink factor is 1.45kgCO 2 / m 2 .

[0048] The invention is effective: the invention can realize the exploration of the development potential of photovoltaic zero-carbon parks, combine the evaluation of the development potential of zero-carbon parks with carbon emissions and carbon reduction, and use the matching degree of the two to measure the park's zero-carbon development potential, providing guidance for the development of zero-carbon parks in the region. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below in conjunction with specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0050] A method for exploring the development potential of a photovoltaic zero-carbon park, characterized by comprising the following steps:

[0051] Step 1: obtaining raw data, wherein the raw data includes a satellite map of the target area, load data of the park, and solar radiation intensity of the target area;

[0052] Step 2: Calculate the carbon emissions of the park based on the characteristics of the park in the satellite map of the target area and the load data of different building types, as well as the load data of the park obtained in step 1. Carbon emissions = building carbon emissions + transportation carbon emissions + municipal carbon emissions;

[0053] Step 3: Calculate the photovoltaic installation area and green plant emission reduction based on the characteristics of the park and different building types in the satellite map of the target area; calculate the carbon emission reduction of the park based on the solar radiation intensity and the distribution of green plants in the satellite map of the target area, where carbon emission reduction = photovoltaic carbon emission reduction + green plant carbon sink;

[0054] Step 4 is to evaluate the matching of carbon emissions and carbon reduction potential, and combine the two to calculate the development potential index Q of the zero-carbon park.

[0055]

[0056] The development potential index Q is used to evaluate whether the park has the potential to develop into a zero-carbon park.

[0057] In step 2, the calculation formula for the building carbon emissions is:

[0058] Building carbon emissions = (above-ground building area * above-ground building electricity consumption index + underground building area * underground building electricity consumption index) * electricity carbon factor;

[0059] Electricity consumption index of above-ground buildings = heating electricity consumption index + cooling electricity consumption index + lighting electricity consumption index + equipment electricity consumption index + hot water electricity consumption index;

[0060] Underground building power consumption index = lighting power consumption index + exhaust system power consumption index;

[0061] Electric carbon factor = 0.5703 kgCO 2 / kWh, taken from the Corporate Greenhouse Gas Emissions Accounting Methodology and Reporting Guide for Power Generation Facilities.

[0062] In step 2, the calculation formula for traffic carbon emissions is:

[0063] Transportation carbon emissions = carbon emissions from gasoline vehicles + carbon emissions from electric vehicles;

[0064] Carbon emissions from gasoline vehicles = number of gasoline vehicles * annual mileage * fuel consumption coefficient of gasoline vehicles * gasoline carbon emission factor

[0065] Among them: fuel consumption coefficient of oil vehicle = 5.475kg / 100km;

[0066] Gasoline carbon emission factor = 3.105tCO 2 / ton;

[0067] Electric vehicle carbon emissions = number of electric vehicles * annual mileage * electric vehicle power consumption coefficient * electric carbon factor;

[0068] Among them: Electric vehicle power consumption coefficient = 13kWh / 100km;

[0069] Electric carbon factor = 0.5703 kgCO 2 / kWh.

[0070] In step 2, the municipal carbon emissions calculation formula is:

[0071] Municipal carbon emissions = carbon emissions from lighting in the area + carbon emissions from sewage treatment + carbon emissions from domestic waste treatment;

[0072] Lighting carbon emissions in the area = total lighting power * electricity usage time * electricity carbon factor;

[0073] Carbon emissions from sewage treatment = (park water supply + park drainage) * water supply and drainage power consumption index * electricity carbon factor;

[0074] Among them: the power consumption index for water supply and drainage is 0.6kWh / ton;

[0075] Carbon emissions from domestic waste treatment = amount of domestic waste used * domestic waste treatment emission coefficient;

[0076] Electric carbon factor = 0.5703 kgCO 2 / kWh;

[0077] Where: Domestic waste treatment emission coefficient = 0.549tCO 2 / ton.

[0078] In step 3, the calculation formula for photovoltaic carbon emission reduction is:

[0079] Photovoltaic carbon emission reduction = photovoltaic power generation * electricity carbon factor;

[0080] Where: Electric carbon factor = 0.5703kgCO 2 / kWh;

[0081] Photovoltaic power generation = total solar radiation on the local horizontal surface * available roof area * photovoltaic module conversion efficiency * comprehensive efficiency coefficient

[0082] Total solar radiation on the local horizontal surface: refer to the standard observation data of the local meteorological station;

[0083] Roof usable area: Roof usable area = roof area * roof usable rate * usable coefficient;

[0084] There are three situations for the roof availability of color steel tile roof: 1. No parapet, no lighting, no ventilation equipment, the roof availability is 0.7-0.8; 2. With parapet, lighting, no ventilation equipment, the roof availability is 0.5-0.7; 3. With parapet, lighting, ventilation equipment, the roof availability is 0.3-0.5; The availability coefficient of color steel tile roof is 1;

[0085] There are four situations for the roof availability of concrete roofs: 1. There is a parapet and nothing else, the roof availability is 0.9-0.95; 2. There is a parapet, elevator or stairwell, no other obstruction, the roof availability is 0.8-0.9; 3. There is a parapet, elevator or stairwell, roof pipes, no other obstruction, the roof availability is 0.7-0.8; 4. There is a parapet, elevator or stairwell and other obstructions, the roof availability is less than 0.7; The availability coefficient for concrete roofs is 1 / (PV module length L*cosβ+PV module length L*sinβ*shadow ratio), β is the installation angle of the PV module;

[0086] Photovoltaic module conversion efficiency: The conversion rate of photovoltaic modules needs to check the parameters of the selected photovoltaic modules;

[0087] Comprehensive efficiency coefficient: The comprehensive efficiency coefficient is generally 70%-85%.

[0088] In step 3, the green plant carbon sink calculation formula is:

[0089] Green plant carbon sink = green area * green plant carbon sink factor;

[0090] Among them: the green plant carbon sink factor is 1.45kgCO 2 / m 2 .

[0091] The following calculation is based on a typical park in a central area of ​​Wuhan City:

[0092] The park covers an area of ​​15 mu and has a total construction area of ​​6745.23m 2 The above-ground building area is 4929.76m 2 , underground building area 1815.47m 2 , there are 5 buildings and 39 parking spaces.

[0093] Annual carbon emissions of buildings:

[0094] Annual power consumption per unit area of ​​above-ground buildings: 60.5 kWh / m 2 , of which heating is 9.8kWh / m 2 , cooling 19.2kWh / m 2 , lighting 12.0kWh / m 2 , equipment 12.7kWh / m 2 , hot water 6.8kWh / m 2 The annual electricity consumption of above-ground buildings is 298250.48 kWh.

[0095] The annual power consumption of underground buildings is 51371.03 kWh, and the calculation parameters are as shown in Table 1:

[0096] Table 1

[0097]

[0098]

[0099] Annual building carbon emissions = (298250.48 + 51371.03) * 0.5703 = 199.39tCO 2

[0100] Municipal Carbon Emissions:

[0101] The park's roads and landscape lighting have a total of 254 lamps with a total power of 4851W and a daily electricity consumption of 8 hours. The carbon emissions from lighting in the area are 8.08tCO 2 ;

[0102] The daily water supply of the park is 37.4m 3 / d, with a daily displacement of 31.8m 3 / d, carbon emissions from sewage treatment 8.64tCO 2 ;

[0103] According to the amount of residential waste in the park dormitories, villas, hotels, and public waste in the training center, a total of 48 tons, the carbon emissions from domestic waste treatment are 26.35tCO 2 ;

[0104] Municipal carbon emissions are 43.07tCO 2 ;

[0105] Annual carbon emissions from transportation:

[0106] The park road is 350 meters long and has 31 parking spaces for gasoline vehicles and 8 parking spaces for new energy vehicles;

[0107] Based on a visit rate of 50%, each vehicle must drive at least 2 laps per visit;

[0108] The annual carbon emissions of gasoline vehicles in the park are 0.67tCO 2 , the annual carbon emissions of trams are 0.08tCO 2 , annual carbon emissions from transportation are 0.75tCO 2 ;

[0109] Photovoltaic carbon emission reduction:

[0110] The roof area of ​​the park is about 2600m 2 , color steel tile roof, take the utilization coefficient as 0.8;

[0111] Total solar radiation on the local horizontal surface: 1292.2kWh / m 2 ;

[0112] Component conversion efficiency: 22%;

[0113] Comprehensive efficiency coefficient: 82%;

[0114] Photovoltaic power generation is approximately: 484874.8kWh;

[0115] Photovoltaic carbon emission reduction is: 276.52tCO 2 ;

[0116] Green plants carbon sink:

[0117] The park has a green area of ​​3550.75m 2 Green land carbon sink 5.15tCO 2 ;

[0118] Zero-carbon park development potential index Q:

[0119]

[0120] The development potential index Q is greater than 1, the carbon emission reduction is greater than the carbon emission, and the park is assessed to have achieved zero carbon.

Claims

1. A method for exploring the development potential of a photovoltaic zero-carbon park, characterized in that The following steps are involved: Step 1: obtaining raw data, wherein the raw data includes a satellite map of the target area, load data of the park, and solar radiation intensity of the target area; Step 2: Calculate the carbon emissions of the park based on the characteristics of the park in the satellite map of the target area and the load data of different building types, as well as the load data of the park obtained in step 1. Carbon emissions = building carbon emissions + transportation carbon emissions + municipal carbon emissions; Step 3: Calculate the photovoltaic installation area and green plant emission reduction based on the characteristics of the park and different building types in the satellite map of the target area; calculate the carbon emission reduction of the park based on the solar radiation intensity and the distribution of green plants in the satellite map of the target area, where carbon emission reduction = photovoltaic carbon emission reduction + green plant carbon sink; Step 4 is to evaluate the matching of carbon emissions and carbon reduction potential, and combine the two to calculate the development potential index Q of the zero-carbon park. The development potential index Q is used to evaluate whether the park has the potential for zero-carbon park development.

2. A method for exploring the development potential of a photovoltaic zero-carbon park according to claim 1, characterized in that: In step 2, the calculation formula for the building carbon emissions is: Building carbon emissions = (above-ground building area * above-ground building electricity consumption index + underground building area * underground building electricity consumption index) * electricity carbon factor; Electricity consumption index of above-ground buildings = heating electricity consumption index + cooling electricity consumption index + lighting electricity consumption index + equipment electricity consumption index + hot water electricity consumption index; Underground building power consumption index = lighting power consumption index + exhaust system power consumption index; Electric carbon factor = 0.5703kgCO2 / kWh.

3. A method for exploring the development potential of a photovoltaic zero-carbon park according to claim 1, characterized in that: In step 2, the calculation formula for traffic carbon emissions is: Transportation carbon emissions = fuel vehicle carbon emissions + electric vehicle carbon emissions Carbon emissions from gasoline vehicles = number of gasoline vehicles * annual mileage * fuel consumption coefficient of gasoline vehicles * gasoline carbon emission factor; Among them: fuel consumption coefficient of oil vehicle = 5.475kg / 100km; Gasoline carbon emission factor = 3.105tCO2 / ton; Electric vehicle carbon emissions = number of electric vehicles * annual mileage * electric vehicle power consumption coefficient * electric carbon factor; Among them: Electric vehicle power consumption coefficient = 13kWh / 100km; Electric carbon factor = 0.5703kgCO2 / kWh.

4. A method for exploring the development potential of a photovoltaic zero-carbon park according to claim 1, characterized in that: In step 2, the municipal carbon emissions calculation formula is: Municipal carbon emissions = carbon emissions from lighting in the area + carbon emissions from sewage treatment + carbon emissions from domestic waste treatment; Lighting carbon emissions in the area = total lighting power * electricity usage time * electricity carbon factor; Carbon emissions from sewage treatment = (park water supply + park drainage) * water supply and drainage power consumption index * electricity carbon factor; Among them: the power consumption index for water supply and drainage is 0.6kWh / ton; Carbon emissions from domestic waste treatment = amount of domestic waste used * domestic waste treatment emission coefficient; Electric carbon factor = 0.5703kgCO2 / kWh; Among them: domestic waste treatment emission coefficient = 0.549tCO2 / ton.

5. The method for exploring the development potential of a photovoltaic zero-carbon park according to claim 1, characterized in that: In step 3, the calculation formula for photovoltaic carbon emission reduction is: Photovoltaic carbon emission reduction = photovoltaic power generation * electricity carbon factor Where: Electric carbon factor = 0.5703kgCO2 / kWh; Photovoltaic power generation = total solar radiation on the local horizontal surface * available roof area * photovoltaic module conversion efficiency * comprehensive efficiency coefficient; Total solar radiation on the local horizontal surface: refer to the standard observation data of the local meteorological station; Roof usable area: Roof usable area = roof area * roof usable rate * usable coefficient; There are three situations for the roof availability of color steel tile roof:

1. No parapet, no lighting, no ventilation equipment, the roof availability is 0.7-0.8; 2. With parapet, lighting, no ventilation equipment, the roof availability is 0.5-0.7; 3. With parapet, lighting, ventilation equipment, the roof availability is 0.3-0.5; The availability coefficient of color steel tile roof is 1; There are four situations for the roof availability of concrete roofs:

1. There is a parapet and nothing else, the roof availability is 0.9-0.95; 2. There is a parapet, elevator or stairwell, no other obstruction, the roof availability is 0.8-0.9; 3. There is a parapet, elevator or stairwell, roof pipes, no other obstruction, the roof availability is 0.7-0.8; 4. There is a parapet, elevator or stairwell and other obstructions, the roof availability is less than 0.7; The availability coefficient for concrete roofs is 1 / (PV module length L*cosβ+PV module length L*sinβ*shadow ratio), β is the installation angle of the PV module; Photovoltaic module conversion efficiency: The conversion rate of photovoltaic modules needs to check the parameters of the selected photovoltaic modules; Comprehensive efficiency coefficient: The comprehensive efficiency coefficient is generally 70%-85%.

6. The method for exploring the development potential of a photovoltaic zero-carbon park according to claim 1, characterized in that: In step 3, the green plant carbon sink calculation formula is: Green plant carbon sink = green area * green plant carbon sink factor; Among them: the green plant carbon sink factor is 1.45kgCO2 / m 2 .

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