Regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method and system based on power transaction

Abstract

The invention relates to the field of power carbon emission, and discloses a regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method and system based on power transaction, and the method comprises the steps: calculating a regional power grid residual hybrid power carbon dioxide emission factor in a set time period; based on the residual hybrid power carbon dioxide emission factor of the regional power grid, carbon dioxide direct emission, province-to-province net inflow carbon emission, k-country-to-province net inflow carbon emission and regional power grid-to-province net inflow carbon emission corresponding to the on-grid electric quantity of a fossil energy generator set are obtained through calculation; various carbon emissions are combined with the total on-grid electric quantity of a provincial generator set in the set time period, the in-provincial non-fossil energy transaction electric quantity which can be traced to a power utilization unit and is on-grid in the provincial period, the residual mixed electric quantity sent to a provincial net by the provincial period, the residual mixed electric quantity sent to a provincial net export by the k country and the residual mixed electric quantity sent to the provincial net by a regional power grid; and calculating to obtain a provincial residual hybrid power carbon dioxide emission factor.

Description

Technical Field

[0001] This invention relates to the field of electricity carbon emission technology, and in particular to a method and system for calculating carbon dioxide emission factors of regional power grids and provincial surplus mixed electricity based on electricity trading. Background Technology

[0002] The power sector is a significant source of carbon dioxide emissions; therefore, the electricity carbon dioxide emission factor is a crucial parameter for calculating carbon dioxide emissions from electricity consumption, determining the accuracy of carbon emission statistics and accounting. Compared to using regional average electricity carbon dioxide emission factors, this method provides more accurate carbon emission accounting and is more conducive to reducing indirect carbon emissions through the purchase of electricity from non-fossil energy sources, thereby promoting the development of non-fossil energy and facilitating a green and low-carbon transformation for the entire society.

[0003] In market-based carbon emission accounting methods, the residual mixed electricity CO2 emission factor is used to calculate the CO2 emissions from electricity consumption by electricity users that cannot be traced back to the generation end using electricity contracting tools. Currently, only the national average electricity CO2 emission factor excluding non-fossil energy electricity traded in the market is published. This has several drawbacks: first, it fails to reflect the differences between provinces and regions, hindering accurate carbon emission accounting; second, it does not deduct the carbon emissions from non-fossil energy electricity that is not connected to the grid and is consumed locally, such as self-owned power plants, thus placing additional carbon emission responsibilities on other electricity users; and third, it does not clarify whether renewable energy generation corresponding to green certificate trading should be deducted. Summary of the Invention

[0004] To address the aforementioned issues, the present invention aims to provide a method and system for calculating carbon dioxide emission factors of regional power grids and provincial surplus mixed electricity based on electricity trading. This method can improve the carbon dioxide emission factor system of regional power grids and provincial surplus mixed electricity, provide basic data support for carbon emission accounting, and facilitate relevant entities to calculate the carbon dioxide emissions of electricity consumption that cannot be traced back to the generation end using electricity contract tools.

[0005] To achieve the above objectives, in a first aspect, the technical solution adopted by the present invention is as follows: a method for calculating the carbon dioxide emission factor of regional power grids and provincial surplus mixed electricity based on electricity trading, comprising: obtaining the direct carbon dioxide emissions corresponding to the on-grid electricity of fossil energy generating units connected to regional power grid r within a set time period, the net carbon emission inflow from regional power grid j to regional power grid r, and the net carbon emission inflow from country k to regional power grid r; combining the total on-grid electricity of generating units connected to regional power grid r within the set time period, the non-fossil energy trading electricity (excluding green certificate trading) traceable to the electricity user unit connected to regional power grid r, the net surplus mixed electricity sent from regional power grid j to regional power grid r, and the net surplus mixed electricity exported from country k to regional power grid r, to calculate the following: The carbon dioxide emission factor of the remaining mixed electricity in the regional power grid (r) is calculated. Based on the carbon dioxide emission factor of the remaining mixed electricity in the regional power grid (r), the direct carbon dioxide emissions corresponding to the on-grid electricity of fossil energy generating units in province p, the net carbon emissions flowing from province n to province p, the net carbon emissions flowing from country k to province p, and the net carbon emissions flowing from the regional power grid (r) to province p are calculated. These carbon emissions are then combined with the total on-grid electricity of generating units in province p, the on-grid electricity of non-fossil energy traded within province p traceable to electricity users, the net remaining mixed electricity sent from province n to province p, the net remaining mixed electricity exported from country k to province p, and the net remaining mixed electricity sent from the regional power grid (r) to province p to calculate the carbon dioxide emission factor of the remaining mixed electricity in province p. .

[0006] Furthermore, the regional power grid's residual mixed electricity carbon dioxide emission factor for:

[0007] In the formula, The residual mixed electricity carbon dioxide emission factor of the regional power grid is expressed in kgCO2 / kWh. This represents the direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil fuel generators connected to the regional power grid r within a specified time period, expressed in tCO2. This represents the net carbon emissions flowing from regional power grid j to regional power grid r within a specified time period, expressed in tCO2. This represents the net carbon emissions flowing from country k into the regional power grid r within a specified time period, expressed in tCO2. This represents the total on-grid electricity generated by generator sets connected to the regional power grid r within a specified time period, expressed in kWh. This refers to the non-fossil energy trading volume that can be traced back to the electricity user within a specified time period and is connected to the regional power grid, excluding green certificate transactions, in kWh. This represents the remaining mixed power output from regional power grid j to regional power grid r within a specified time period, expressed in kWh. This represents the remaining mixed electricity exported from country k to the regional power grid r within a specified time period, expressed in kWh.

[0008] Furthermore, the net carbon emissions flowing from regional power grid j to regional power grid r within a given time period are defined. for:

[0009] In the formula, This represents the remaining mixed electricity net sent from regional power grid j to regional power grid r, in kWh. The residual mixed electricity carbon dioxide emission factor of regional grid j, which net sends residual mixed electricity to regional grid r, is expressed in kgCO2 / kWh.

[0010] Furthermore, the net carbon emissions flowing from country k into the regional power grid r within a given time period. for:

[0011] In the formula, This represents the remaining mixed electricity exported by country k to the regional power grid r, in kWh. The CO2 emission factor of country k represents the residual mixed electricity carbon dioxide emission factor of country k, which is the net export of residual mixed electricity to the regional power grid r, or the average CO2 emission factor of country k's electricity generation excluding non-fossil energy electricity traded in the market, in kgCO2 / kWh.

[0012] Furthermore, the remaining mixed power net transmitted from regional power grid j to regional power grid r within a given time period. for:

[0013] In the formula, This represents the total amount of electricity sent from regional power grid j to regional power grid r, in kWh. This represents the amount of non-fossil energy traded from regional power grid j to regional power grid r, traceable to the relevant electricity-consuming unit, in kWh; This represents the total amount of electricity sent from regional power grid r to regional power grid j, in kWh. This represents the amount of non-fossil energy traded from regional power grid r to regional power grid j, traceable to the relevant electricity-consuming units, in kWh.

[0014] Furthermore, the remaining mixed electricity exported by country k to the regional power grid r within a given time period. for:

[0015] In the formula, This represents the total electricity exported by country k to the regional power grid r, in kWh. This represents the amount of non-fossil energy traded by country k to the regional power grid r, traceable to the relevant electricity-consuming units, in kWh. This represents the total electricity exported from regional power grid r to country k, in kWh. This represents the amount of non-fossil energy traded from regional power grid r to country k, traceable to electricity users in country k, expressed in kWh.

[0016] Furthermore, based on the residual mixed electricity carbon dioxide emission factor of the regional power grid r, the direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil energy generating units in province p, the net carbon emissions flowing from province n to province p, the net carbon emissions flowing from country k to province p, and the net carbon emissions flowing from the regional power grid r to province p during the set time period are calculated, including: Direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil energy power plants in province P for:

[0017] In the formula, This represents the direct carbon dioxide emissions from fossil fuel power generation units in province p, expressed in tCO2. This represents the direct carbon dioxide emissions corresponding to the power generation of fossil fuel generating units such as self-owned power plants in province p that are not connected to the grid, expressed in tCO2. Net carbon emissions from province n to province p for:

[0018] In the formula, This represents the remaining mixed electricity that province n sends to province p, in kWh. The carbon dioxide emission factor of the remaining mixed electricity in province n, which is the net transfer of remaining mixed electricity to province p, is expressed in kgCO2 / kWh. Country K's net carbon emissions flow into Province P for:

[0019] In the formula, This represents the remaining mixed electricity volume exported by country k to province p, in kWh. The CO2 emission factor of country k represents the residual mixed electricity from net exports of residual mixed electricity to province p, or the average CO2 emission factor of country k from electricity generation excluding non-fossil energy from market transactions, in kgCO2 / kWh. The average carbon dioxide emission factor of the regional power grid r is expressed in kgCO2 / kWh. Net carbon emissions from regional power grid r to province p for:

[0020] In the formula, This represents the remaining mixed electricity net delivered by the regional power grid r to province p, in kWh. The remaining mixed power carbon dioxide emission factor (r) represents the regional power grid's net transmission of remaining mixed power to province p, expressed in kgCO2 / kWh.

[0021] Furthermore, the remaining mixed electricity carbon dioxide emission factor in province p for:

[0022] In the formula, This represents the total on-grid electricity generated by generator units in province p within a specified time period, in kWh. This represents the traceable intra-provincial non-fossil energy transaction volume within province p that can be traced back to the electricity-consuming unit during the specified time period, expressed in kWh. This represents the remaining mixed electricity that province n sends to province p within a set time period, in kWh. This represents the remaining mixed electricity volume exported from country k to province p within a specified time period, in kWh. This represents the remaining mixed electricity that the regional power grid r sends to province p within a specified time period, expressed in kWh.

[0023] Furthermore, the remaining mixed electricity net sent from province n to province p for:

[0024] In the formula, This represents the total electricity transmitted from province n to province p, in kWh. This represents the amount of non-fossil energy traded from province n to province p, traceable to electricity-consuming units in province p, expressed in kWh. This represents the total electricity transmitted from province p to province n, expressed in kWh. This represents the amount of non-fossil energy traded from province p to province n, traceable to electricity-consuming units in province n, expressed in kWh. Residual mixed electricity exported by country k to province p for:

[0025] In the formula, This represents the total electricity exported by country k to province p, in kWh. This represents the amount of non-fossil energy traded by country k to province p, traceable to electricity-consuming units in province p, expressed in kWh. This represents the total electricity exported from province p to country k, in kWh. This represents the amount of non-fossil energy traded from province p to country k, traceable to electricity-consuming units in country k, expressed in kWh. The remaining mixed power transmitted by the regional power grid r to province p for:

[0026] In the formula, This represents the total amount of electricity transmitted from regional power grid r to province p, expressed in kWh. This represents the amount of non-fossil energy traded from regional power grid r to province p, traceable to electricity-consuming units in province p, expressed in kWh. This represents the total electricity transmitted from province p to the regional power grid r, in kWh. This represents the amount of non-fossil energy traded from province p to the regional power grid r, traceable to the electricity-consuming units within the regional power grid r, expressed in kWh.

[0027] Secondly, the technical solution adopted by this invention is as follows: a regional power grid and provincial surplus mixed power carbon dioxide emission factor calculation system based on power trading, comprising: a regional power grid surplus mixed power carbon dioxide emission factor calculation module, which obtains the direct carbon dioxide emissions corresponding to the on-grid electricity of fossil energy generating units connected to regional power grid r within a set time period, the net carbon emission inflow from regional power grid j to regional power grid r, and the net carbon emission inflow from country k to regional power grid r, and combines the total on-grid electricity of generating units connected to regional power grid r within the set time period, the non-fossil energy trading electricity traceable to the electricity user unit without green certificate trading connected to regional power grid r, the surplus mixed electricity net sent from regional power grid j to regional power grid r, and the surplus mixed electricity net exported from country k to regional power grid r, to calculate the surplus carbon dioxide emissions of regional power grid r. The system includes a mixed-electricity carbon dioxide emission factor calculation module, which calculates the direct carbon dioxide emissions corresponding to the on-grid electricity of fossil energy generating units in province p, the net carbon emissions flowing from province n to province p, the net carbon emissions flowing from country k to province p, and the net carbon emissions flowing from regional grid r to province p within a specified time period, based on the residual mixed-electricity carbon dioxide emission factor of the regional grid r. The provincial residual mixed-electricity carbon dioxide emission factor calculation module combines various carbon emissions with the total on-grid electricity of generating units in province p within the specified time period, the on-grid electricity of non-fossil energy traded within province p traceable to electricity users, the residual mixed electricity net transmitted from province n to province p, the residual mixed electricity net exported from country k to province p, and the residual mixed electricity net transmitted from regional grid r to province p, to calculate the residual mixed-electricity carbon dioxide emission factor of province p. .

[0028] The present invention has the following advantages due to the adoption of the above technical solutions: 1. When calculating the carbon dioxide emission factor of regional power grids and provincial surplus mixed electricity, this invention deducts the amount of non-fossil energy traded that has actually been traded and consumed and whose power generation and consumption can be clearly traced. Compared with the amount of renewable energy traded after deducting green certificate transactions, this invention has higher international recognition.

[0029] 2. When calculating the carbon dioxide emission factor of regional power grids and provincial surplus mixed power, this invention deducts the local consumption of fossil energy power generation and non-fossil energy power generation, which is better aligned with domestic and international policies such as direct green power connection, and makes the division of carbon dioxide emission responsibilities of relevant entities clearer.

[0030] 3. In this invention, there is a clear calculation interface between the regional power grid and the provincial surplus mixed power carbon dioxide emission factor, which can also avoid duplicate calculations in application.

[0031] 4. The application of the regional power grid and provincial surplus mixed power carbon dioxide emission factor involved in this invention is convenient. The carbon dioxide emission of electricity consumption of enterprises / organizations and product levels that cannot be traced within a specific period is equal to the carbon dioxide emission factor of provincial surplus mixed power × (the total amount of electricity purchased from the public power grid within a specific period - the amount of non-fossil energy purchased from the public power grid within a specific period that can be traced within a specific period).

[0032] In summary, this invention includes a national average carbon dioxide emission factor for non-fossil energy electricity traded through market mechanisms, reflecting the differences across provinces and regions and enabling accurate carbon emission calculation. It also explicitly deducts renewable energy generation corresponding to green certificate trading. This provides fundamental data support for carbon emission accounting, facilitating relevant entities in calculating carbon dioxide emissions from electricity consumption that cannot be traced back to the generation end using electricity contracting tools. Attached Figure Description

[0033] Figure 1 This is a flowchart of the method for calculating the carbon dioxide emission factor of regional power grids and provincial surplus mixed electricity based on power trading in this embodiment of the invention. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] In one embodiment of the present invention, a method for calculating the carbon dioxide emission factor of regional power grids and provincial surplus mixed electricity based on electricity trading is provided. In this embodiment, the calculation of the carbon dioxide emission factor of regional power grids and provincial surplus mixed electricity has a clear boundary: generator sets can only be connected to the public power grid through either the regional power grid or the provincial power grid; no electricity user directly connects to the regional power grid; and the recipients of imported or exported electricity from other countries can only be either the regional power grid or the provincial power grid. Specifically, as shown... Figure 1 As shown, the method includes the following steps: 1) Obtain the direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil fuel generators connected to regional grid r within a set time period, the net carbon emission inflow from regional grid j to regional grid r, and the net carbon emission inflow from country k to regional grid r. Combine this with the total on-grid electricity generated by generators connected to regional grid r within the set time period, the non-fossil energy transaction electricity (excluding green certificate transactions) traceable to the electricity user unit and connected to regional grid r, the remaining mixed electricity net sent from regional grid j to regional grid r, and the remaining mixed electricity net exported from country k to regional grid r, to calculate the carbon dioxide emission factor of the remaining mixed electricity of regional grid r. .

[0037] 2) Carbon dioxide emission factor based on residual mixed electricity in regional power grids The direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil energy generators in province p, the net carbon emissions flowing from province n to province p, the net carbon emissions flowing from country k to province p, and the net carbon emissions flowing from the regional power grid r to province p during the specified time period were calculated.

[0038] 3) By combining various carbon emissions with the total on-grid electricity generated by generator units in province p during the specified time period, the on-grid electricity traded within province p that can be traced back to the electricity user, the net surplus mixed electricity sent from province n to province p, the net surplus mixed electricity exported from country k to province p, and the net surplus mixed electricity sent from the regional power grid r to province p, the carbon dioxide emission factor of the surplus mixed electricity in province p is calculated. .

[0039] In step 1) above, the regional power grid's residual mixed electricity carbon dioxide emission factor for:

[0040] In the formula, The residual mixed electricity carbon dioxide emission factor of the regional power grid is expressed in kgCO2 / kWh. This represents the direct carbon dioxide emissions corresponding to the electricity generated by fossil fuel generators connected to the regional power grid r within a specified time period, expressed in tCO2. It is calculated from the fossil fuel consumption corresponding to the electricity generated by each fossil fuel generator. This represents the net carbon emissions flowing from regional power grid j to regional power grid r within a specified time period, expressed in tCO2. This represents the net carbon emissions flowing from country k into the regional power grid r within a specified time period, expressed in tCO2. This represents the total on-grid electricity generated by generator sets connected to the regional power grid r within a specified time period, expressed in kWh. This refers to the non-fossil energy transaction volume that can be traced back to the electricity user within a specified time period and is connected to the regional power grid r. It does not include green certificate transactions. The unit is kWh. The seller of the transaction is the non-fossil energy power generation enterprise connected to the regional power grid r, and the buyer of the transaction is the relevant electricity user (as well as the electricity sales company that acts as its agent to purchase electricity and can distribute the transaction volume to it). This represents the remaining mixed power output from regional power grid j to regional power grid r within a specified time period, expressed in kWh. This represents the remaining mixed electricity exported from country k to the regional power grid r within a specified time period, expressed in kWh.

[0041] in, It represents one of the regional power grids in Northeast, North China, East China, Central China, Northwest, South China, and Southwest China. This refers to other regional power grids that net send the remaining mixed power to the regional power grid r within a set time period. This refers to other countries that net export the remaining mixed electricity to the regional power grid during a specified time period.

[0042] In this embodiment, the net carbon emissions flowing from regional power grid j to regional power grid r within a set time period are... for:

[0043] In the formula, This represents the remaining mixed electricity net sent from regional power grid j to regional power grid r, in kWh. The residual mixed electricity carbon dioxide emission factor of regional grid j, which net sends residual mixed electricity to regional grid r, is expressed in kgCO2 / kWh.

[0044] In this embodiment, the net carbon emissions flowing from country k into the regional power grid r within a given time period are set. for:

[0045] In the formula, This represents the remaining mixed electricity exported by country k to the regional power grid r, in kWh. The carbon dioxide emission factor of country k represents the net export of remaining mixed electricity to the regional power grid r, or, if none, then This represents the average CO2 emission factor of electricity generated in country k, excluding non-fossil energy generated through market transactions, expressed in kgCO2 / kWh.

[0046] In this embodiment, the remaining mixed power net sent from regional power grid j to regional power grid r within a set time period is... for:

[0047] In the formula, This represents the total amount of electricity sent from regional power grid j to regional power grid r, in kWh. This refers to the non-fossil energy transaction volume, in kWh, sent from regional power grid j to regional power grid r that is traceable to the relevant electricity-consuming units. The seller in the transaction is the enterprise owning the non-fossil energy generating unit connected to regional power grid j, and the buyer in the transaction is the electricity-consuming units within the geographical area covered by regional power grid r (as well as the electricity sales company that acts as its agent for purchasing electricity and can distribute the transaction volume to it). This represents the total amount of electricity sent from regional power grid r to regional power grid j, in kWh. This refers to the non-fossil energy transaction volume that can be traced back to the relevant electricity-consuming units when the regional power grid r sends it to the regional power grid j. The unit is kWh. The seller of the transaction is the enterprise that owns the non-fossil energy generator unit connected to the regional power grid r, and the buyer of the transaction is the electricity-consuming units within the geographical area covered by the regional power grid j (as well as the electricity sales company that acts as its agent for purchasing electricity and can distribute the transaction volume to it).

[0048] In this embodiment, the remaining mixed electricity output from country k to the regional power grid r within a set time period is defined. for:

[0049] In the formula, This represents the total electricity exported by country k to the regional power grid r, in kWh. This represents the amount of non-fossil energy traded by country k to regional power grid r, traceable to the relevant electricity users. The unit is kWh. The seller in the transaction is the non-fossil energy power generation company in country k, and the buyer in the transaction is the electricity users within the geographical area covered by regional power grid r (as well as the electricity sales company that acts as its agent to purchase electricity and can distribute the traded electricity to them). This represents the total electricity exported from regional power grid r to country k, in kWh. This represents the amount of non-fossil energy traded from regional grid r to country k, traceable to electricity-consuming units in country k, in kWh. The seller in this transaction is a non-fossil energy power generation company connected to regional grid r, and the buyer is the relevant electricity-consuming unit in country k.

[0050] In step 2) above, the carbon dioxide emission factor of the remaining mixed electricity in the regional power grid is used. The following calculations were performed to obtain the direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil fuel power plants in province p, the net carbon emissions flowing from province n to province p, the net carbon emissions flowing from country k to province p, and the net carbon emissions flowing from the regional power grid r to province p within the specified time period: Direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil energy power plants in province P for:

[0051] In the formula, This represents the direct carbon dioxide emissions from fossil fuel power generation units in province p, expressed in tCO2. This represents the direct carbon dioxide emissions corresponding to the power generation of fossil fuel generating units such as self-owned power plants in province p that are not connected to the grid, expressed in tCO2. Connecting to the grid refers to the electricity being sent to the public power grid.

[0052] Net carbon emissions from province n to province p for:

[0053] In the formula, This represents the remaining mixed electricity that province n sends to province p, in kWh. The remaining mixed electricity carbon dioxide emission factor of province n, which is the net amount of remaining mixed electricity sent to province p, is expressed in kgCO2 / kWh.

[0054] Country K's net carbon emissions flow into Province P for:

[0055] In the formula, This represents the remaining mixed electricity volume exported by country k to province p, in kWh. The carbon dioxide emission factor of country k representing the net export of surplus mixed electricity to province p; or, if none, then... This represents the average CO2 emission factor of electricity generated in country k, excluding non-fossil energy generated through market transactions, expressed in kgCO2 / kWh. The average carbon dioxide emission factor of the regional power grid is represented by r, in kgCO2 / kWh.

[0056] Net carbon emissions from regional power grid r to province p for:

[0057] In the formula, This represents the remaining mixed electricity net delivered by the regional power grid r to province p, in kWh. The remaining mixed power carbon dioxide emission factor (r) represents the regional power grid's net transmission of remaining mixed power to province p, expressed in kgCO2 / kWh.

[0058] In step 3) above, the remaining mixed electricity carbon dioxide emission factor of province p (Unit: kgCO2 / kWh) is:

[0059] In the formula, This represents the total on-grid electricity generated by generator units in province p within a specified time period, in kWh. This represents the non-fossil energy transaction volume within province p that can be traced back to the electricity-consuming unit within a set time period, in kWh. The seller in the transaction is the non-fossil energy power generation enterprise in province p, and the buyer in the transaction includes the electricity-consuming unit in province p (as well as the electricity sales company that acts as its agent to purchase electricity and can distribute the transaction volume to it). This represents the remaining mixed electricity that province n sends to province p within a set time period, in kWh. This represents the remaining mixed electricity volume exported from country k to province p within a specified time period, in kWh. This represents the remaining mixed electricity that the regional power grid r sends to province p within a specified time period, expressed in kWh.

[0060] in, It refers to a specific province. This refers to other provinces that net send surplus mixed electricity to province p during a specific time period. This indicates the country that net exports the remaining mixed electricity to province p within a specified time period. This refers to the power grid of the region where province p is located.

[0061] In this embodiment, the remaining mixed power net sent from province n to province p... for:

[0062] In the formula, This represents the total electricity transmitted from province n to province p, in kWh. This represents the amount of non-fossil energy traded from province n to province p, traceable to electricity-consuming units in province p, in kWh. The seller in the transaction is a non-fossil energy power generation enterprise in province n, and the buyers include electricity-consuming units in province p (as well as electricity sales companies that act as their agents for purchasing electricity and can distribute the traded electricity to them). This represents the total electricity transmitted from province p to province n, expressed in kWh. This represents the amount of non-fossil energy traded from province p to province n, traceable to electricity users in province n, in kWh. The seller in this transaction is a non-fossil energy power generation company in province p, and the buyers include electricity users in province n (as well as electricity sales companies that act as their agents for purchasing electricity and can distribute the traded electricity to them).

[0063] In this embodiment, the remaining mixed electricity exported by country k to province p is... for:

[0064] In the formula, This represents the total electricity exported by country k to province p, in kWh. This represents the amount of non-fossil energy traded from country K to province P, traceable to electricity-consuming units in province P, in kWh. The seller in this transaction is a non-fossil energy power generation company in country K, and the buyers include electricity-consuming units in province P (as well as electricity sales companies that act as their agents for purchasing electricity and can distribute the traded electricity to them). This represents the total electricity exported from province p to country k, in kWh. This represents the amount of non-fossil energy traded from province p to country k, traceable to electricity-consuming units in country k, in kWh. The seller in the transaction is a non-fossil energy power generation company in province p, and the buyer is the relevant electricity-consuming unit in country k.

[0065] In this embodiment, the remaining mixed power net delivered by the regional power grid r to province p for:

[0066] In the formula, This represents the total amount of electricity transmitted from regional power grid r to province p, expressed in kWh. This refers to the non-fossil energy transaction volume transmitted from regional power grid r to province p, traceable to electricity-consuming units in province p, in kWh. The seller in the transaction is the enterprise owning the non-fossil energy generating unit connected to regional power grid r, and the buyer in the transaction includes electricity-consuming units in province p (as well as the electricity sales company that acts as their agent for purchasing electricity and can distribute the transaction volume to them). This represents the total electricity transmitted from province p to the regional power grid r, in kWh. This represents the non-fossil energy transaction volume transmitted from province p to regional power grid r, traceable to the electricity users of regional power grid r, in kWh. The seller in the transaction is the non-fossil energy power generation enterprise in province p, and the buyer in the transaction includes the electricity users connected to regional power grid r (as well as the electricity sales company that acts as their agent for purchasing electricity and can distribute the transaction volume to them).

[0067] In one embodiment of the present invention, a system for calculating carbon dioxide emission factors of regional power grids and provincial surplus mixed electricity based on electricity trading is provided, comprising: The regional power grid residual mixed electricity carbon dioxide emission factor calculation module obtains the direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil fuel generators connected to regional power grid r within a set time period, the net carbon emission inflow from regional power grid j to regional power grid r, and the net carbon emission inflow from country k to regional power grid r. Combined with the total on-grid electricity generated by generators connected to regional power grid r within the set time period, the non-fossil energy transaction electricity (excluding green certificate transactions and traceable to the electricity user) connected to regional power grid r, the net residual mixed electricity sent from regional power grid j to regional power grid r, and the net residual mixed electricity exported from country k to regional power grid r, the residual mixed electricity carbon dioxide emission factor of regional power grid r is calculated. ; The carbon emission calculation module is based on the residual mixed electricity carbon dioxide emission factor of the regional power grid. The direct carbon dioxide emissions corresponding to the on-grid electricity generated by fossil energy generators in province p, the net carbon emissions flowing from province n to province p, the net carbon emissions flowing from country k to province p, and the net carbon emissions flowing from the regional power grid r to province p are calculated within the set time period. The provincial residual mixed electricity carbon dioxide emission factor calculation module combines various carbon emissions with the total on-grid electricity generated by generator units in province p within a specified time period, the on-grid electricity volume of non-fossil energy traded within province p that can be traced back to electricity users, the net residual mixed electricity sent from province n to province p, the net residual mixed electricity exported from country k to province p, and the net residual mixed electricity sent from regional power grid r to province p, to calculate the residual mixed electricity carbon dioxide emission factor of province p. .

[0068] The system provided in this embodiment is used to execute the above-described method embodiments. For specific processes and details, please refer to the above embodiments, which will not be repeated here.

[0069] In one embodiment of the present invention, a computing device is provided. This computing device can be a terminal and may include a processor, a communication interface, memory, a display screen, and an input device. The processor, communication interface, and memory communicate with each other via a communication bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. When the computer programs are executed by the processor, they implement the methods described in the above embodiments. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface is used for wired or wireless communication with external terminals. Wireless communication can be achieved through Wi-Fi, a management network, NFC (Near Field Communication), or other technologies. The display screen can be a liquid crystal display (LCD) or an e-ink display. The input device can be a touch layer covering the display screen, or buttons, a trackball, or a touchpad mounted on the casing of the computing device, or an external keyboard, touchpad, or mouse. The processor can call logical instructions stored in the memory.

[0070] Furthermore, the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, and can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0071] In one embodiment of the present invention, a computer program product is provided, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, and when the program instructions are executed by a computer, the computer is able to perform the methods provided in the above-described method embodiments.

[0072] In one embodiment of the present invention, a non-transitory computer-readable storage medium is provided, which stores server instructions that cause a computer to perform the methods provided in the above embodiments.

[0073] The computer-readable storage medium provided in the above embodiments has a similar implementation principle and technical effect to the above method embodiments, and will not be described again here.

[0074] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations 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, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0075] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0076] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0077] 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 them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for calculating regional power grid and provincial residual hybrid power carbon dioxide emission factors based on power transactions, characterized in that, The method comprises the following steps: obtaining the direct carbon dioxide emission amount corresponding to the on-grid electricity amount of the fossil energy generator set connected to the regional power grid r in a set period, the net inflow carbon emission amount of the regional power grid j to the regional power grid r, and the net inflow carbon emission amount of the k country to the regional power grid r, and combining the total on-grid electricity amount of the generator set connected to the regional power grid r in the set period, the non-fossil energy transaction electricity amount traceable to the electricity consumption unit without green certificate transaction connected to the regional power grid r, the net remaining mixed electricity amount sent out by the regional power grid j to the regional power grid r, and the net remaining mixed electricity amount exported by the k country to the regional power grid r, to calculate the residual mixed power carbon dioxide emission factor of the regional power grid r; based on the residual mixed power carbon dioxide emission factor of the regional power grid r, the direct carbon dioxide emission amount corresponding to the on-grid electricity amount of the fossil energy generator set in the p province in the set period, the net inflow carbon emission amount of the n province to the p province, the net inflow carbon emission amount of the k country to the p province, and the net inflow carbon emission amount of the regional power grid r to the p province are calculated; The various carbon emissions are combined with the total on-grid power of the p-province generator set within the set period, the non-fossil energy trading power within the p-province that can be traced back to the power consumption unit within the p-province, the net surplus mixed power sent by the n-province to the p-province, the net surplus mixed power exported by the k-country to the p-province, and the net surplus mixed power sent by the regional power grid r to the p-province to calculate the p-province residual mixed power carbon dioxide emission factor .

2. The method of claim 1, wherein the method is based on the regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method based on power transaction, characterized in that, Regional grid r residual hybrid power carbon dioxide emission factor is: In the formula, represents the residual mixed power carbon dioxide emission factor of the regional power grid r, unit kgCO2 / kWh; represents the direct carbon dioxide emission corresponding to the on-grid power of the fossil energy generator set connected to the regional power grid r in the set period, unit tCO2; represents the net inflow carbon emission of the regional power grid j to the regional power grid r in the set period, unit tCO2; represents the net inflow carbon emission of the k country to the regional power grid r in the set period, unit tCO2; represents the total on-grid power of the generator set connected to the regional power grid r in the set period, unit kWh; represents the non-fossil energy trading power that can be traced to the power consumption unit connected to the regional power grid r in the set period, excluding green certificate trading, unit kWh; represents the net residual mixed power sent out by the regional power grid j to the regional power grid r in the set period, unit kWh; represents the net residual mixed power exported by the k country to the regional power grid r in the set period, unit kWh.

3. The method of claim 2, wherein the method is based on the regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method, characterized in that, Net inflow of carbon emissions from regional grid j to regional grid r over a set period is: In the formula, represents the net surplus hybrid electricity sent out by the regional grid j to the regional grid r, in units of kWh; represents the residual hybrid power carbon dioxide emission factor of the regional grid j that sends out the net surplus hybrid electricity to the regional grid r, in units of kgCO2 / kWh.

4. The method of claim 2, wherein the method is based on the regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method based on power transaction, characterized in that, Net inflow of carbon emissions from country k to regional grid r over a set period is: In the formula, represents the net export of the residual hybrid power of country k to regional power grid r, unit kWh; represents the residual hybrid power carbon dioxide emission factor of country k for the net export of the residual hybrid power to regional power grid r, or represents the average carbon dioxide emission factor of power generation of country k for the non-fossil energy power not including market transaction, unit kgCO2 / kWh.

5. The method of claim 2, wherein the method is based on the regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method, characterized in that, Set the net surplus hybrid power of regional power grid j to regional power grid r in a time period is: In the formula, represents the total amount of electricity sent by the regional power grid j to the regional power grid r, unit kWh; represents the non-fossil energy trading electricity amount traceable to the relevant electricity consumption unit sent by the regional power grid j to the regional power grid r, unit kWh; represents the total amount of electricity sent by the regional power grid r to the regional power grid j, unit kWh; represents the non-fossil energy trading electricity amount traceable to the relevant electricity consumption unit sent by the regional power grid r to the regional power grid j, unit kWh.

6. The method of claim 2, wherein the method is based on the regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method based on power transaction, characterized in that, net export of the remaining mixed electricity of k countries to the regional power grid r in the set period is: In the formula, represents the total electricity exported by country k to regional grid r, in kWh; represents the non-fossil energy traded electricity exported by country k to regional grid r that can be traced back to the relevant electricity consuming unit, in kWh; represents the total electricity exported from regional grid r to country k, in kWh; represents the non-fossil energy traded electricity exported from regional grid r to country k that can be traced back to the electricity consuming unit in country k, in kWh.

7. The method of claim 1, wherein the method is based on the regional power grid and provincial residual hybrid power carbon dioxide emission factor calculation method, characterized in that, based on the residual mixed power carbon dioxide emission factor of the regional power grid r, the direct carbon dioxide emission amount corresponding to the on-grid electricity amount of the fossil energy generator set in the p province in the set period, the net inflow carbon emission amount of the n province to the p province, the net inflow carbon emission amount of the k country to the p province, and the net inflow carbon emission amount of the regional power grid r to the p province are calculated, comprising: p the direct carbon dioxide emission corresponding to the on-grid power of the fossil energy generator set is: In the formula, represents the direct emission of carbon dioxide generated by the fossil energy generator set in p province, unit tCO2; represents the direct emission of carbon dioxide corresponding to the power generation of fossil energy generator set not on the network in p province, unit tCO2; n province to p province net inflow carbon emissions is: In the formula, represents the remaining mixed power of n province net sent to p province, unit kWh; represents the remaining mixed power carbon dioxide emission factor of n province net sent to p province, unit kgCO2 / kWh; Net carbon emissions flow from country k to province p is: In the formula, represents the net export of the residual hybrid power of k country to p province, unit kWh; represents the residual hybrid power carbon dioxide emission factor of k country for the net export of the residual hybrid power to p province, or represents the average carbon dioxide emission factor of k country for the power generation of non-fossil energy power without market transaction, unit kgCO2 / kWh; represents the average carbon dioxide emission factor of the regional power grid r, unit kgCO2 / kWh; The regional power grid r has a net inflow of carbon emissions to the province p is: In the formula, represents the remaining hybrid power of the regional power grid r net sent to the p province, unit: kWh; represents the regional power grid r remaining hybrid power carbon dioxide emission factor of the remaining hybrid power net sent to the p province, unit: kgCO2 / kWh. 8.The method of claim 7, wherein the method is characterized by, p remaining hybrid power carbon dioxide emission factor is: In the formula, represents the total on-grid power of the p-province generator set in the set period, unit: kWh; represents the non-fossil energy trading power of the p-province in the set period, which can be traced back to the power consumption unit, unit: kWh; represents the net surplus mixed power exported from the n-province to the p-province in the set period, unit: kWh; represents the net surplus mixed power exported from the k-country to the p-province in the set period, unit: kWh; represents the net surplus mixed power exported from the regional power grid r to the p-province in the set period, unit: kWh. 9.The method of claim 8, wherein the method is characterized by, n province to p province net sent out the remaining mixed power is: In the formula, represents the total amount of electricity sent from the n province to the p province, in units of kWh; represents the non-fossil energy trading electricity amount traceable to the p province electricity unit sent from the n province to the p province, in units of kWh; represents the total amount of electricity sent from the p province to the n province, in units of kWh; represents the non-fossil energy trading electricity amount traceable to the n province electricity unit sent from the p province to the n province, in units of kWh; The residual hybrid power net exported from country k to province p is: wherein, represents the total electricity exported by k to p, in kWh; represents the non-fossil energy traded electricity exported by k to p traceable to p electricity units, in kWh; represents the total electricity exported from p to k, in kWh; represents the non-fossil energy traded electricity exported from p to k traceable to k electricity units, in kWh; The remaining hybrid power sent out by the regional power grid r to the p province For: In the formula, represents the total amount of electricity sent by the regional power grid r to the p province, unit kWh; represents the non-fossil energy trading electricity amount traceable to the p province electricity unit sent by the regional power grid r to the p province, unit kWh; represents the total amount of electricity sent by the p province to the regional power grid r, unit kWh; represents the non-fossil energy trading electricity amount traceable to the regional power grid r electricity unit sent by the p province to the regional power grid r, unit kWh.

10. A system for calculating regional grid and provincial residual hybrid power carbon dioxide emission factors based on power transactions, characterized in that, The method comprises the following steps: The residual mixed power carbon dioxide emission factor calculation module obtains the direct carbon dioxide emission amount corresponding to the on-grid electricity amount of the fossil energy generator set connected to the regional power grid r in a set period, the net inflow carbon emission amount of the regional power grid j to the regional power grid r, and the net inflow carbon emission amount of the k country to the regional power grid r, and combines the total on-grid electricity amount of the generator set connected to the regional power grid r in the set period, the non-fossil energy transaction electricity amount traceable to the electricity consumption unit without green certificate transaction connected to the regional power grid r, the net remaining mixed electricity amount sent out by the regional power grid j to the regional power grid r, and the net remaining mixed electricity amount exported by the k country to the regional power grid r, to calculate the residual mixed power carbon dioxide emission factor of the regional power grid r; The carbon emission amount calculation module calculates the direct carbon dioxide emission amount corresponding to the on-grid electricity amount of the fossil energy generator set in the p province in the set period, the net inflow carbon emission amount of the n province to the p province, the net inflow carbon emission amount of the k country to the p province, and the net inflow carbon emission amount of the regional power grid r to the p province based on the residual mixed power carbon dioxide emission factor of the regional power grid r. The provincial residual hybrid power carbon dioxide emission factor calculation module combines various carbon emissions with the total on-grid power of the p-provincial power generator set in the setting period, the p-provincial non-fossil energy trading power traceable to the power consumption unit in the p-provincial on-grid, the net residual hybrid power sent by the n-provincial to the p-provincial, the net residual hybrid power exported by the k-country to the p-provincial, and the net residual hybrid power sent by the regional power grid r to the p-provincial, to calculate the p-provincial residual hybrid power carbon dioxide emission factor .

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