Photovoltaic large base site selection potential space identification method

Abstract

The invention discloses a photovoltaic large base site selection potential space identification method, which comprises the following steps: S1, sorting available land types of project site selection, and determining the requirements of land meeting photovoltaic large base site selection in land change investigation by analyzing the specific definition of land classification of land investigation; s2, deducting photovoltaic land use limiting factors, carding and determining the limiting factors from three aspects of use control policies, occupied use and clarified various planning lands, and deducting corresponding areas; s3, deducting natural condition limiting factors; and S4, summarizing and analyzing the potential space of the photovoltaic project. According to the method provided by the invention, the current land utilization condition, the specific location, the area and the change condition of the photovoltaic large base site selection potential space in the region can be clearly obtained, so that comprehensive monitoring of the photovoltaic large base site selection potential space is realized, and the accuracy of identification of the photovoltaic large base site selection potential space is greatly improved.

Description

Technical Field

[0001] The present invention relates to the site selection of photovoltaic bases, and particularly to a method for identifying the potential space for the site selection of large-scale photovoltaic bases. Background Art

[0002] Current natural resource management not only needs to achieve the sustainable use of land resources, but also should coordinate with the planning and development of the new energy industry to ensure its reasonable land use requirements. Therefore, carrying out the potential analysis of land use for the photovoltaic new energy industry is an important measure for scientifically selecting photovoltaic bases.

[0003] To solve the problem of land resource constraints in the development of the new energy industry, it is necessary to couple and coordinate with the national territorial space planning from multiple dimensions such as quantity scale, construction requirements, layout balance, and timing coordination, give full play to the resource and location advantages of new energy in the autonomous region to provide land use guarantees, and achieve the coordination of the timing of national territorial space development and the development of the new energy industry. Summary of the Invention

[0004] The main object of the present invention is to provide a method for identifying the potential space for the site selection of large-scale photovoltaic bases, Combing aspects such as available land types for project site selection, deducting photovoltaic land use restriction factors, natural condition restriction factors, and the standards for the land use of individual projects in large-scale photovoltaic bases, comprehensively calculating the potential space for the site selection of large-scale photovoltaic bases, realizing the comprehensive monitoring of the potential space for the site selection of large-scale photovoltaic bases, and greatly improving the accuracy of identifying the potential space for the site selection of large-scale photovoltaic bases.

[0005] The technical solution adopted by the present invention is: a method for identifying the potential space for the site selection of large-scale photovoltaic bases, including: S1. Combing available land types for project site selection, and determining the requirements for land use that meet the site selection of large-scale photovoltaic bases in the national land change survey through the analysis of the specific definitions of land classification in the national land survey; S2. Deducting photovoltaic land use restriction factors, sorting out and determining restrictive factors from three aspects: land use control policies, already occupied and used, and various types of land use in the already defined plans, and deducting the corresponding areas; S3. Deducting natural condition restriction factors, determining natural condition restriction factors and deducting them according to the principles of relatively flat terrain, high availability rate of solar energy resources, and concentrated and contiguous development based on the experience in the specific engineering site selection design; S4. Summarizing and analyzing the potential space of photovoltaic projects, further sorting out the land that meets the site selection requirements of large-scale photovoltaic bases according to the standard that the general individual project in a large-scale photovoltaic base is above 1GW and at least 30,000 mu of concentrated and contiguous land is required, and calculating the potential space for the site selection of large-scale photovoltaic bases.

[0006] Further, step S1 includes: analyzing the specific definitions of land classification for national land surveys, determining five land types in national land change surveys, namely sandy land, bare land, bare rock and gravel land, other grasslands, and saline-alkali land, which meet the relevant requirements of the National Development and Reform Commission for the site selection of large-scale photovoltaic bases, and counting the area of available land types.

[0007] Furthermore, step S2 includes: sorting out and determining restrictive factors from three aspects: land use control policies, occupied and used land, and various types of planned land that have been defined, and deducting the corresponding areas; Land use control policies specify the land that photovoltaic projects are not allowed to occupy, including nine types: newly added cultivated land in the current year, cultivated land reserve resources, ecological protection red lines, urban development boundaries, control ranges of industrial parks, areas where the project of returning farmland to grass has been implemented, management ranges of rivers and lakes, protection ranges and construction control zones of cultural relics protection units at the autonomous region level and above, and management ranges of major infrastructure; Occupied and used land includes five types: land areas of approved but unconstructed projects, land areas of approved photovoltaic and wind power projects, recorded facility agricultural land with unchanged land types, current mining blocks of surface mines, and current land use for characteristic industries; Various types of planned land that have been defined include five types: land for major projects such as transportation and water conservancy with determined site selections, special planning ranges such as wine and mineral resources, land for afforestation and greening in the whole region, key industries and projects in cities and counties, and military land.

[0008] Furthermore, step S3 includes: based on the experience in specific engineering site selection and design, determining three types of natural condition restrictive factors to be deducted in accordance with the principles of relatively flat terrain, high availability rate of solar energy resources, and concentrated and contiguous development; specifically including land with a slope greater than 25 degrees, gullies, and plot areas less than 3,000 mu.

[0009] Furthermore, step S4 includes: on the basis of the available land types for the site selection of large-scale photovoltaic bases, after deducting the restrictive factors of photovoltaic land and the restrictive factors of natural conditions, within the remaining scope, in accordance with the standard that the single project of a large-scale photovoltaic base is generally above 1 GW and at least 30,000 mu of concentrated and contiguous land is required, further sorting out the land that meets the site selection requirements of large-scale photovoltaic bases, and calculating the potential space for the site selection of large-scale photovoltaic bases.

[0010] Advantages of the present invention: The method of the present invention can clearly obtain the current land use status, specific location, area and its changes of the potential space for the site selection of large-scale photovoltaic bases in the region, thereby realizing the comprehensive monitoring of the potential space for the site selection of large-scale photovoltaic bases and greatly improving the accuracy of identifying the potential space for the site selection of large-scale photovoltaic bases.

[0011] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the drawings. Brief Description of the Drawings

[0012] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0013] Figure 1 It is a flowchart of a method for identifying the potential space for the site selection of large-scale photovoltaic bases of the present invention. Detailed Embodiment

[0014] In order to make the purposes, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0015] Embodiment A method for identifying the potential space for the site selection of large-scale photovoltaic bases includes the following steps: S1. Sort out the available land types for project site selection. By analyzing the specific definitions of land use classification in the national land survey, determine the land that meets the requirements of the National Development and Reform Commission for the land use of large-scale photovoltaic base site selection in the national land change survey.

[0016] S2. Deduct the restrictive factors for photovoltaic land use. Sort out and determine the restrictive factors from three aspects: the land use control policy, the already occupied and used land, and the land with various clearly defined planning uses, and deduct the corresponding areas.

[0017] S3. Deduct the restrictive factors of natural conditions. Based on the experience of relevant experts in the specific engineering site selection design, determine the restrictive factors of natural conditions and deduct them according to the principles of relatively flat terrain, high availability rate of solar energy resources, and concentrated and contiguous development.

[0018] S4. Summarize and analyze the potential space of photovoltaic projects. According to the standard that the single project of a large-scale photovoltaic base is generally above 1 GW and at least 30,000 mu of concentrated and contiguous land is required, further sort out the land that meets the requirements of the large-scale photovoltaic base site selection, and finally calculate the potential space of the large-scale photovoltaic base site selection.

[0019] In this embodiment, in step S1, sort out the available land types for project site selection. Select five available land types for the site selection of large-scale photovoltaic bases, namely sandy land, bare land, bare rock and gravel land, other grasslands, and saline-alkali land from the land use classification in the national land survey, and count the areas of each land type.

[0020] In this embodiment, in step S2, sort out the restrictive factors for photovoltaic land use from three aspects: the land use control policy, the already occupied and used land, and the land with various clearly defined planning uses, and deduct the relevant areas.

[0021] In this embodiment, in step S3, in accordance with the principles of relatively flat terrain, high availability of solar energy resources, and centralized and contiguous development, three natural condition limiting factors for photovoltaic land use, namely, land with a slope greater than 25 degrees, gullies, and patches with an area less than 3,000 mu (determined according to the land use scale of a 100 MW centralized photovoltaic project), are extracted, and the relevant areas are deducted.

[0022] S4. In this embodiment, in step S4, within the remaining scope, in accordance with the standard that a single project in a large photovoltaic base is generally above 1 GW and at least 30,000 mu of centralized and contiguous land is required, the land that meets the siting requirements of the large photovoltaic base is further sorted out, and finally the siting potential space of the large photovoltaic base is calculated.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for identifying potential space for site selection of large photovoltaic bases, characterized in that: include: S1. Sort out the types of land available for project site selection, and determine the requirements for land use that meets the site selection requirements for large photovoltaic bases in the land change survey through analysis of the specific definitions of land use classification in land survey; S2. Deduct the restrictive factors of photovoltaic land use, sort out and determine the restrictive factors from three aspects: use control policy, occupied and used, and various types of planned land that have been clearly defined, and deduct the corresponding area; S3. Deduct the natural condition limiting factors, based on the experience in site selection and design of specific projects, and in accordance with the principles of relatively flat terrain, high availability of solar energy resources, and concentrated and contiguous development, determine the natural condition limiting factors and deduct them; S4. Summarize and analyze the potential space of photovoltaic projects. According to the standard that a single project of a large photovoltaic base is generally above 1GW, at least 30,000 mu of concentrated and contiguous land is required. Further sort out the land that meets the site selection requirements for large photovoltaic bases, and calculate the potential space for site selection of large photovoltaic bases.

2. The method for identifying the potential space for site selection of a photovoltaic large base according to claim 1, characterized in that In, The step S1 includes: analyzing the specific definition of land use classification in the national land survey, determining five types of land in the national land change survey, namely sandy land, bare land, bare rock and gravel land, other grasslands, and saline-alkali land, which meet the relevant requirements of the National Development and Reform Commission on the site selection of large photovoltaic bases, and counting the available land area.

3. The method for identifying potential space for site selection of a large photovoltaic base according to claim 1, characterized in that: The step S2 includes: sorting out and determining restrictive factors from three aspects: use control policy, occupied and used land, and various types of planned land that have been identified, and deducting the corresponding area; The land use control policy clearly states that photovoltaic projects are not allowed to occupy 9 types of land, including annual newly added cultivated land, cultivated land reserve resources, ecological protection red lines, urban development boundaries, industrial park control areas, the scope of projects that have implemented returning farmland to grassland, river and lake management areas, the protection areas and construction control zones of cultural relics protection units at the autonomous region level and above, and the management areas of major infrastructure. The occupied land includes five types: land for approved but unbuilt projects, land for approved photovoltaic and wind power projects, agricultural land for registered facilities that has not been changed, existing open-pit mining areas, and land for existing characteristic industries; Various types of planned land have been identified, including land for major projects such as transportation, water conservancy, etc. with determined sites, special planning areas such as wine and mineral resources, land for afforestation and greening in the entire region, key industries and projects in cities and counties, and military land.

4. The method for identifying potential space for site selection of a photovoltaic large base according to claim 1, characterized in that: The step S3 includes: according to the experience of specific project site selection and design, and in accordance with the principles of relatively flat terrain, high availability of solar energy resources, and concentrated and contiguous development, three types of natural condition restriction factors are determined and deducted; specifically, slopes greater than 25 degrees, gullies, and plots of land less than 3,000 mu.

5. The method for identifying potential space for site selection of a large photovoltaic base according to claim 1, characterized in that: The step S4 comprises: based on the available land types for the site selection of large photovoltaic bases, after deducting the restrictive factors of photovoltaic land use and natural conditions, within the remaining range, according to the standard that a single photovoltaic base project is generally above 1GW and requires at least 30,000 mu of concentrated and contiguous land, further sorting out the land that meets the site selection requirements of large photovoltaic bases, and calculating the potential space for site selection of large photovoltaic bases.

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