Power grid carbon emission reduction contribution quantitative calculation method and device

Abstract

The invention relates to the technical field of power system carbon emission reduction, and particularly provides a power grid carbon emission reduction contribution quantitative calculation method and device, and the method comprises the steps: determining the carbon emission reduction of a grid-connected main body based on the new energy generating capacity when the grid-connected main body is not connected to a power grid; determining the carbon emission reduction of the power grid after the grid-connected main body is merged into the power grid based on the new energy generating capacity when the grid-connected main body is merged into the power grid; and determining the power grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected main body and the carbon emission reduction of the power grid after the grid-connected main body is connected into the power grid. According to the technical scheme provided by the invention, low-cost and high-efficiency contribution calculation can be realized, and power grid investment decision and carbon emission reduction performance display are supported.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission reduction in power systems, and in particular to a method and device for quantitatively calculating the contribution of power grid carbon emission reduction. Background Art

[0002] Against the backdrop of global climate change, carbon emission reduction has become a key goal for economic and social development in all countries. As the primary source of carbon emissions, the energy industry's emissions reduction efforts are crucial. The power grid connects electricity production and consumption, serving as a crucial network platform and a central link in energy transformation. It is the core hub for carbon emission reduction in the power system. Carbon emission reduction in the power grid is not simply a reduction in its own emissions, but rather a reflection of the collaborative emissions reductions achieved through its support and connectivity across power generation, load generation, and storage.

[0003] As the core hub of carbon emission reduction in the power system, quantitatively measuring the contribution of the power grid to carbon reduction is a critical issue. Traditional methods rely on empirical allocations, lacking theoretical fairness. Traditional carbon accounting models also suffer from computational complexity due to the fragmentation of data from multiple entities. Therefore, a technology to quantitatively measure the contribution of the power grid to carbon reduction is urgently needed. Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the present invention proposes a method and device for quantitatively measuring the contribution of carbon emission reduction in power grids.

[0005] In a first aspect, a method for quantitatively calculating the contribution of a power grid to carbon emission reduction is provided, the method comprising:

[0006] Determine the carbon emission reduction of the grid-connected entity based on the renewable energy power generation before the grid-connected entity is connected to the grid;

[0007] Determine the carbon emission reduction of the grid after the grid-connected entity is connected to the grid based on the renewable energy power generation of the grid-connected entity at the time of connection;

[0008] The carbon emission reduction contribution of the grid is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid.

[0009] Preferably, the carbon emission reduction of the grid-connected entity is as follows:

[0010] α=EG α ×0.5×(EF grid,OM +EF grid,BM )+EG αs ×EF grid

[0011] In the above formula, α is the carbon emission reduction of the grid-connected entity, EG α EF is the renewable energy power generation when the grid-connected entity is not connected to the grid. grid,OMis the combined marginal emission factor of the regional power grid where the grid-connected entity is located, EF grid,BM is the marginal emission factor of the power grid in the region where the grid-connected entity is located, EG αs EF is the energy saving when the grid-connected entity is not connected to the grid. grid is the grid emission factor.

[0012] Furthermore, the carbon emission reduction of the grid after the grid-connected entity is connected to the grid is as follows:

[0013] γ=EG γ ×0.5×(EF grid,OM +EF grid,BM )+EG γs ×EF grid

[0014] In the above formula, γ is the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, EG γ The amount of renewable energy generated when the grid-connected entity is connected to the grid, EG γs It refers to the amount of energy saved when the grid-connected entity is connected to the grid.

[0015] Preferably, before determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method further includes:

[0016] Determine whether the carbon emission reduction of the grid-connected entity is less than the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. If so, determine the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. Otherwise, end the operation.

[0017] Furthermore, the contribution of the grid to carbon emission reduction is as follows:

[0018] ω 网 =0.5(γ-α)

[0019] In the above formula, ω 网 Contribution to carbon emission reduction in the power grid.

[0020] Furthermore, after determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method further includes:

[0021] The carbon emission reduction contribution of the grid-connected entity is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

[0022] Furthermore, the carbon emission reduction contribution of the grid-connected entity is as follows:

[0023] ω 主体 =0.5(α+γ)

[0024] In the above formula, ω 主体 Contribution to carbon emission reduction of grid-connected entities.

[0025] Preferably, the types of the grid-connected entities include: power source type, load type and source-load type.

[0026] In a second aspect, a device for quantitatively calculating the contribution of carbon emission reduction to a power grid is provided, the device comprising:

[0027] A first determination module is used to determine the carbon emission reduction of the grid-connected entity based on the renewable energy power generation when the grid-connected entity is not connected to the grid;

[0028] The second determination module is used to determine the carbon emission reduction of the grid after the grid-connected entity is connected to the grid based on the renewable energy power generation when the grid-connected entity is connected to the grid;

[0029] The third determining module is used to determine the carbon emission reduction contribution of the power grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

[0030] Preferably, the carbon emission reduction of the grid-connected entity is as follows:

[0031] α=EG α ×0.5×(EF grid,OM +EF grid,BM )+EG αs ×EF grid

[0032] In the above formula, α is the carbon emission reduction of the grid-connected entity, EG α EF is the renewable energy power generation when the grid-connected entity is not connected to the grid. grid,OM is the combined marginal emission factor of the regional power grid where the grid-connected entity is located, EF grid,BM is the marginal emission factor of the power grid in the region where the grid-connected entity is located, EG αs EF is the energy saving when the grid-connected entity is not connected to the grid. grid is the grid emission factor.

[0033] Furthermore, the carbon emission reduction of the grid after the grid-connected entity is connected to the grid is as follows:

[0034] γ=EG γ ×0.5×(EF grid,OM +EF grid,BM )+EG γs ×EF grid

[0035] In the above formula, γ is the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, EG γ The amount of renewable energy generated when the grid-connected entity is connected to the grid, EG γsIt refers to the amount of energy saved when the grid-connected entity is connected to the grid.

[0036] Preferably, before determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method further includes:

[0037] Determine whether the carbon emission reduction of the grid-connected entity is less than the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. If so, determine the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. Otherwise, end the operation.

[0038] Furthermore, the contribution of the grid to carbon emission reduction is as follows:

[0039] ω 网 =0.5(γ-α)

[0040] In the above formula, ω 网 Contribution to carbon emission reduction in the power grid.

[0041] Furthermore, after determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method further includes:

[0042] The carbon emission reduction contribution of the grid-connected entity is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

[0043] Furthermore, the carbon emission reduction contribution of the grid-connected entity is as follows:

[0044] ω 主体 =0.5(α+γ)

[0045] In the above formula, ω 主体 Contribution to carbon emission reduction of grid-connected entities.

[0046] Preferably, the types of the grid-connected entities include: power source type, load type and source-load type.

[0047] In a third aspect, a computer device is provided, comprising: one or more processors;

[0048] The processor is configured to execute one or more programs;

[0049] When the one or more programs are executed by the one or more processors, the method for quantitatively calculating the contribution of carbon emission reduction to the power grid is implemented.

[0050] In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed, the method for quantitatively calculating the contribution of carbon emission reduction to the power grid is implemented.

[0051] The above one or more technical solutions of the present invention have at least one or more of the following beneficial effects:

[0052] The present invention provides a method and device for quantitatively calculating the contribution of a power grid to carbon emissions reductions, including: determining the carbon emissions reduction of a grid-connected entity based on the renewable energy generation output of the entity before it was connected to the grid; determining the carbon emissions reduction of the grid after the grid-connected entity was connected to the grid based on the renewable energy generation output of the entity when it was connected to the grid; and determining the grid's contribution to carbon emissions reduction based on the carbon emissions reduction of the grid-connected entity and the carbon emissions reduction of the grid after the grid-connected entity was connected to the grid. The technical solution provided by the present invention enables low-cost, high-efficiency contribution calculation, supporting grid investment decisions and demonstrating carbon emissions reduction performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a flow chart of the main steps of the method for quantitatively calculating the contribution of power grid carbon emission reduction according to an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0056] As disclosed in the background technology, in the context of global climate change response, carbon emission reduction has become a key goal for the economic and social development of all countries. As the primary source of carbon emissions, the energy industry's emission reduction efforts are crucial. The power grid connects electricity production and consumption, serving as a crucial network platform, a central link in energy transformation, and the core hub for carbon emission reduction in the power system. Carbon emission reduction in the power grid does not involve a reduction in its own emissions, but rather reflects the joint emission reductions achieved through supporting and connecting power sources, loads, and storage.

[0057] As the core hub of carbon emission reduction in the power system, quantitatively measuring the contribution of the power grid to carbon reduction is a critical issue. Traditional methods rely on empirical allocations, lacking theoretical fairness. Traditional carbon accounting models also suffer from computational complexity due to the fragmentation of data from multiple entities. Therefore, a technology to quantitatively measure the contribution of the power grid to carbon reduction is urgently needed.

[0058] To address the aforementioned issues, the present invention provides a method and device for quantitatively calculating a grid's carbon emission reduction contribution, including: determining the grid-connected entity's carbon emission reduction based on the renewable energy generation before the entity was connected to the grid; determining the grid's carbon emission reduction after the entity was connected to the grid based on the renewable energy generation when the entity was connected to the grid; and determining the grid's carbon emission reduction contribution based on the grid-connected entity's carbon emission reduction and the grid's carbon emission reduction after the entity was connected to the grid. The technical solution provided by the present invention enables low-cost, high-efficiency contribution calculation, supporting grid investment decisions and demonstrating carbon emission reduction performance.

[0059] The above scheme is described in detail below.

[0060] Example 1

[0061] See attached Figure 1 , Figure 1 This is a flow chart of the main steps of a method for quantitatively calculating the contribution of grid carbon emission reduction according to an embodiment of the present invention. Figure 1 As shown, the method for quantitatively calculating the contribution of power grid carbon emission reduction in the embodiment of the present invention mainly includes the following steps:

[0062] Step S101: determining the carbon emission reduction of the grid-connected entity based on the renewable energy power generation when the grid-connected entity is not connected to the grid;

[0063] Step S102: determining the carbon emission reduction of the grid after the grid-connected entity is connected to the grid based on the renewable energy power generation when the grid-connected entity is connected to the grid;

[0064] Step S103: Determine the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid.

[0065] In this embodiment, the carbon emission reduction of the grid-connected entity is as follows:

[0066] α=EG α ×0.5×(EF grid,OM +EF grid,BM )+EG αs ×EF grid

[0067] In the above formula, α is the carbon emission reduction of the grid-connected entity, EG α EF is the renewable energy power generation when the grid-connected entity is not connected to the grid. grid,OM is the combined marginal emission factor of the regional power grid where the grid-connected entity is located, EF grid,BM is the marginal emission factor of the power grid in the region where the grid-connected entity is located, EG αs EF is the energy saving when the grid-connected entity is not connected to the grid. grid is the grid emission factor.

[0068] In one embodiment, the carbon emission reduction of the grid after the grid-connected entity is connected to the grid is as follows:

[0069] γ=EG γ ×0.5×(EF grid,OM +EF grid,BM )+EG γs ×EF grid

[0070] In the above formula, γ is the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, EG γ The amount of renewable energy generated when the grid-connected entity is connected to the grid, EG γs It refers to the amount of energy saved when the grid-connected entity is connected to the grid.

[0071] In this embodiment, before determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the following steps are included:

[0072] Determine whether the carbon emission reduction of the grid-connected entity is less than the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. If so, determine the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. Otherwise, end the operation.

[0073] In one embodiment, the grid carbon emission reduction contribution is as follows:

[0074] ω 网 =0.5(γ-α)

[0075] In the above formula, ω 网 Contribution to carbon emission reduction in the power grid.

[0076] In one embodiment, after determining the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method includes:

[0077] The carbon emission reduction contribution of the grid-connected entity is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

[0078] In one embodiment, the carbon emission reduction contribution of the grid-connected entity is as follows:

[0079] ω 主体 =0.5(α+γ)

[0080] In the above formula, ω 主体 Contribution to carbon emission reduction of grid-connected entities.

[0081] In this embodiment, the types of the grid-connected entities include: power source type, load type and source-load type.

[0082] For grid-connected entities, it's also necessary to determine whether they are conducive to carbon emissions reduction. For example, for power grid-connected entities, whether the project utilizes new energy to replace fossil energy; for load grid-connected entities, whether the project increases electrification to replace fossil fuels, or reduces energy consumption and improves energy efficiency; and for source-load projects, whether the project meets load demand through its own new energy generation instead of purchased electricity or traditional energy.

[0083] Example 2

[0084] Based on the same inventive concept, the present invention further provides a device for quantitatively calculating the contribution of carbon emission reduction to a power grid, the device comprising:

[0085] A first determination module is used to determine the carbon emission reduction of the grid-connected entity based on the renewable energy power generation when the grid-connected entity is not connected to the grid;

[0086] The second determination module is used to determine the carbon emission reduction of the grid after the grid-connected entity is connected to the grid based on the renewable energy power generation when the grid-connected entity is connected to the grid;

[0087] The third determining module is used to determine the carbon emission reduction contribution of the power grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

[0088] Preferably, the carbon emission reduction of the grid-connected entity is as follows:

[0089] α=EG α ×0.5×(EF grid,OM +EF grid,BM )+EG αs ×EF grid

[0090] In the above formula, α is the carbon emission reduction of the grid-connected entity, EG α EF is the renewable energy power generation when the grid-connected entity is not connected to the grid. grid,OM is the combined marginal emission factor of the regional power grid where the grid-connected entity is located, EF grid,BM is the marginal emission factor of the power grid in the region where the grid-connected entity is located, EG αs EF is the energy saving when the grid-connected entity is not connected to the grid. grid is the grid emission factor.

[0091] Furthermore, the carbon emission reduction of the grid after the grid-connected entity is connected to the grid is as follows:

[0092] γ=EG γ ×0.5×(EF grid,OM +EF grid,BM )+EG γs ×EF grid

[0093] In the above formula, γ is the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, EG γ The amount of renewable energy generated when the grid-connected entity is connected to the grid, EG γs It refers to the amount of energy saved when the grid-connected entity is connected to the grid.

[0094] Preferably, before determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method further includes:

[0095] Determine whether the carbon emission reduction of the grid-connected entity is less than the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. If so, determine the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. Otherwise, end the operation.

[0096] Furthermore, the contribution of the grid to carbon emission reduction is as follows:

[0097] ω 网 =0.5(γ-α)

[0098] In the above formula, ω 网 Contribution to carbon emission reduction in the power grid.

[0099] Furthermore, after determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method further includes:

[0100] The carbon emission reduction contribution of the grid-connected entity is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

[0101] Furthermore, the carbon emission reduction contribution of the grid-connected entity is as follows:

[0102] ω 主体 =0.5(α+γ)

[0103] In the above formula, ω 主体 Contribution to carbon emission reduction of grid-connected entities.

[0104] Preferably, the types of the grid-connected entities include: power source type, load type and source-load type.

[0105] Example 3

[0106] Based on the same inventive concept, the present invention also provides a computer device, which includes a processor and a memory, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function, so as to implement the steps of a method for quantitatively calculating the contribution of carbon emission reduction to the power grid in the above embodiment.

[0107] Example 4

[0108] Based on the same inventive concept, the present invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device for storing programs and data. It can be understood that the computer-readable storage medium here can include both built-in storage media in the computer device and, of course, extended storage media supported by the computer device. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space. These instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the steps of a method for quantitatively calculating the contribution of carbon emission reduction to a power grid in the above embodiment.

[0109] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0110] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0111] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0112] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A method for quantitatively calculating the contribution of power grid carbon emission reduction, characterized in that: The method comprises: Determine the carbon emission reduction of the grid-connected entity based on the renewable energy power generation before the grid-connected entity is connected to the grid; Determine the carbon emission reduction of the grid after the grid-connected entity is connected to the grid based on the renewable energy power generation of the grid-connected entity at the time of connection; The carbon emission reduction contribution of the grid is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid.

2. The method according to claim 1, wherein The carbon emission reductions of the grid-connected entities are as follows: α=EG α ×0.5×(EF grid,OM +EF grid,BM )+EG αs ×EF grid In the above formula, α is the carbon emission reduction of the grid-connected entity, EG α EF is the renewable energy power generation when the grid-connected entity is not connected to the grid. grid,OM is the combined marginal emission factor of the regional power grid where the grid-connected entity is located, EF grid,BM is the marginal emission factor of the power grid in the region where the grid-connected entity is located, EG αs EF is the energy saving when the grid-connected entity is not connected to the grid. grid is the grid emission factor.

3. The method according to claim 2, wherein The carbon emission reduction of the grid after the grid-connected entity is connected to the grid is as follows: γ=EG γ ×0.5×(EF grid,OM +EF grid,BM )+EG γs ×EF grid In the above formula, γ is the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, EG γ The amount of renewable energy generated when the grid-connected entity is connected to the grid, EG γs It refers to the amount of energy saved when the grid-connected entity is connected to the grid.

4. The method according to claim 1, wherein Before determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method includes: Determine whether the carbon emission reduction of the grid-connected entity is less than the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. If so, determine the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. Otherwise, end the operation.

5. The method according to claim 3, wherein The contribution of the grid to carbon emission reduction is as follows: oh 网 =0.5(γ-α) In the above formula, ω 网 Contribution to carbon emission reduction in the power grid.

6. The method according to claim 3, wherein After determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method includes: The carbon emission reduction contribution of the grid-connected entity is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

7. The method according to claim 6, wherein The carbon emission reduction contributions of the grid-connected entities are as follows: oh 主体 =0.5(α+γ) In the above formula, ω 主体 Contribution to carbon emission reduction of grid-connected entities.

8. The method according to claim 1, wherein The types of grid-connected entities include: power source type, load type and source-load type.

9. A device for quantitatively calculating the contribution of power grid carbon emission reduction, characterized in that: The device comprises: A first determination module is used to determine the carbon emission reduction of the grid-connected entity based on the renewable energy power generation when the grid-connected entity is not connected to the grid; The second determination module is used to determine the carbon emission reduction of the grid after the grid-connected entity is connected to the grid based on the renewable energy power generation when the grid-connected entity is connected to the grid; The third determining module is used to determine the carbon emission reduction contribution of the power grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

10. The device according to claim 9, wherein The carbon emission reductions of the grid-connected entities are as follows: α=EG α ×0.5×(EF grid,OM +EF grid,BM )+EG αs ×EF grid In the above formula, α is the carbon emission reduction of the grid-connected entity, EG α EF is the renewable energy power generation when the grid-connected entity is not connected to the grid. grid,OM is the combined marginal emission factor of the regional power grid where the grid-connected entity is located, EF grid,BM is the marginal emission factor of the power grid in the region where the grid-connected entity is located, EG αs EF is the energy saving when the grid-connected entity is not connected to the grid. grid is the grid emission factor.

11. The device according to claim 10, wherein The carbon emission reduction of the grid after the grid-connected entity is connected to the grid is as follows: γ=EG γ ×0.5×(EF grid,OM +EF grid,BM )+EG γs ×EF grid In the above formula, γ is the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, EG γ The amount of renewable energy generated when the grid-connected entity is connected to the grid, EG γs It refers to the amount of energy saved when the grid-connected entity is connected to the grid.

12. The device according to claim 9, wherein Before determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method includes: Determine whether the carbon emission reduction of the grid-connected entity is less than the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. If so, determine the grid carbon emission reduction contribution based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid. Otherwise, end the operation.

13. The device according to claim 11, wherein The contribution of the grid to carbon emission reduction is as follows: oh 网 =0.5(γ-α) In the above formula, ω 网 Contribution to carbon emission reduction in the power grid.

14. The device according to claim 11, wherein After determining the carbon emission reduction contribution of the grid based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the grid after the grid-connected entity is connected to the grid, the method includes: The carbon emission reduction contribution of the grid-connected entity is determined based on the carbon emission reduction of the grid-connected entity and the carbon emission reduction of the power grid after the grid-connected entity is connected to the power grid.

15. The device according to claim 14, wherein The carbon emission reduction contributions of the grid-connected entities are as follows: oh 主体 =0.5(α+γ) In the above formula, ω 主体 Contribution to carbon emission reduction of grid-connected entities.

16. The device according to claim 9, wherein The types of grid-connected entities include: power source type, load type and source-load type.

17. A computer device, characterized in that: include: one or more processors; The processor is configured to execute one or more programs; When the one or more programs are executed by the one or more processors, the method for quantitatively calculating the contribution of carbon emission reduction to a power grid as described in any one of claims 1 to 8 is implemented.

18. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed, it implements the method for quantitatively calculating the contribution of carbon emission reduction of the power grid as described in any one of claims 1 to 8.

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