Coal power enterprise transportation project evaluation method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of coal-electricity transportation project evaluation, in particular to a coal-electricity enterprise transportation project evaluation method and device, electronic equipment and a storage medium. According to the method, the carbon emission cost in the transportation process is quantified and is included into the total cost, and the comprehensive unit price of the furnace-entering standard coal is calculated by combining the factory price, the freight and the like of the coal and is used as a key index for preliminary screening, so that the economic feasibility basis of the scheme is ensured. Then, the method further carries out strict financial benefit analysis on the feasible scheme. The comprehensive process effectively overcomes the limitation that only freight is compared in a traditional method, project investment, operation cost, environment cost and overall profitability can be systematically and comprehensively considered, a quantitative decision basis is finally provided for selecting an optimal transportation path for a coal power enterprise, and scientificity and rationality of project decision are remarkably improved. The problem that the existing coal power plant matched transportation project is incomplete and inaccurate in power plant cost and benefit identification calculation is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal-electricity transportation project evaluation, and particularly to an evaluation method, device, electronic device and storage medium for the transportation project of coal-electricity enterprises. Background Art

[0002] The existing decision-making on the transportation plan of coal-electricity enterprises mostly focuses on directly comparing the explicit transportation costs of different paths, such as the freight unit prices of railways or highways. This method usually simply adds the coal price and the transportation cost to form the arrival cost of the coal entering the factory or the furnace, and uses this as the main basis for selecting suppliers or paths. The relevant analysis may involve simple cost comparison or static break-even calculation, but fails to regard the transportation link as a complete investment project for systematic financial benefit evaluation.

[0003] Therefore, the existing transportation plans of coal-electricity enterprises have the problems of incomplete and inaccurate cost and benefit analysis in the transportation link of coal-electricity projects entering the factory, and the financial evaluation process needs to be further studied and improved. Summary of the Invention

[0004] The present invention provides an evaluation method, device, electronic device and storage medium for the transportation project of coal-electricity enterprises to solve the problems of incomplete and inaccurate identification and calculation of the costs and benefits of the supporting transportation projects of existing coal-fired power plants for the power plants.

[0005] In a first aspect, the present invention provides an evaluation method for the transportation project of coal-electricity enterprises, the method comprising: determining a number of qualified coal mines and transportation plans from the coal mines to the coal-electricity enterprises based on the parameters of the coal-fired generating units in the coal-electricity enterprises; determining the carbon emission costs of each transportation plan according to the energy consumption of the transportation plan; determining the unit price of standard coal entering the furnace of the transportation plan based on the cost, carbon emission cost and coal ex-factory price of the transportation plan; screening the transportation plans for financial benefit analysis based on the comparison between the unit price of standard coal entering the furnace and the economic unit price of standard coal entering the furnace of the coal-fired generating units; conducting financial benefit analysis on the screened transportation plans, and forming a decision list for the transportation project according to the analysis results.

[0006] This invention quantifies the carbon emission costs during transportation and incorporates them into the total cost. Combined with coal ex-factory prices and freight charges, a more comprehensive standard coal price for furnace operation is calculated, serving as a key indicator for initial screening and ensuring the economic feasibility of the proposed solution. It also fully reflects the impact of carbon emission costs during transportation on project construction, effectively overcoming the shortcomings of overly simplistic and crude existing evaluation theories. Subsequently, this method further conducts a rigorous financial benefit analysis of feasible solutions. This comprehensive process effectively overcomes the limitations of traditional methods that only compare freight costs, systematically considering project investment, operating costs, environmental costs, and overall profitability. Ultimately, it provides a quantitative basis for coal-fired power plants to select the optimal transportation route, significantly improving the scientific and rational nature of project decision-making. It solves the problem of incomplete and inaccurate cost and benefit identification calculations for existing coal-fired power plant supporting transportation projects.

[0007] In one optional implementation, a financial benefit analysis is performed on the selected transportation options, and a decision list for transportation projects is formed based on the analysis results. This includes: comparing the selected transportation options with a benchmark transportation option to determine the contribution benefits and various costs of the selected transportation options; evaluating the financial benefits of the selected transportation options using preset financial evaluation indicators based on the contribution benefits and various costs, and selecting transportation options that meet the evaluation criteria; and forming a decision list for transportation projects based on the transportation options that meet the evaluation criteria.

[0008] This invention systematically compares each transportation option with a benchmark option, accurately identifying the incremental contribution and total lifecycle cost of each option, and using preset financial evaluation indicators for objective quantitative evaluation. This process effectively filters out financially feasible high-quality options, and the resulting decision list provides managers with clear and scientific investment basis, thereby significantly improving the accuracy and efficiency of transportation project decisions and avoiding subjective assumptions.

[0009] In one optional implementation, preset financial evaluation indicators are used to evaluate the financial benefits of the selected transportation schemes and to select those that meet the evaluation criteria. This includes: using the internal rate of return on total investment (IRR) and net present value (NPV) indicators to evaluate the selected transportation schemes before financing; selecting transportation schemes that meet the first evaluation criteria based on the pre-financing evaluation results; when financing is required, using the equity IRR, NPV, total investment return rate, and equity net profit rate indicators to evaluate the transportation schemes that meet the first evaluation criteria after financing; and selecting transportation schemes that meet the second evaluation criteria based on the post-financing evaluation results.

[0010] This invention first uses the internal rate of return (IRR) and net present value (NPV) of total investment for pre-financing evaluation, screening feasible solutions from the perspective of overall project profitability. For solutions requiring financing, a further post-financing evaluation is conducted using indicators such as the internal rate of return on equity, performing a second, more precise screening from the perspective of investor returns. This progressive screening mechanism can systematically and comprehensively assess the financial feasibility of transportation solutions, ensuring that the final selected solutions not only possess profitability at the project level but also bring satisfactory returns to investors, thereby significantly improving the scientific nature and reliability of investment decisions for coal-fired power plant transportation projects.

[0011] In one optional implementation, a decision list for transportation projects is formed based on transportation schemes that meet evaluation criteria, including: when financing is not required, forming a decision list for transportation projects based on transportation schemes that meet a first evaluation criterion; and when financing is required, forming a decision list for transportation projects based on transportation schemes that meet a second evaluation criterion.

[0012] In one optional implementation, the transportation scheme selected for financial benefit analysis based on a comparison of the standard coal price for furnace input and the economic standard coal price for coal-fired power units includes: determining the relative magnitudes of the standard coal price for furnace input and the economic standard coal price for coal-fired power units; when the standard coal price for furnace input is lower than the economic standard coal price for coal-fired power units, the transportation scheme corresponding to the standard coal price for furnace input is retained; when the standard coal price for furnace input is higher than the economic standard coal price for coal-fired power units, the transportation scheme corresponding to the standard coal price for furnace input is discarded.

[0013] This invention establishes an efficient and intuitive preliminary screening mechanism by directly comparing the standard coal price per unit of each transportation option with the power plant's own economic standard coal price per unit of the power plant—a key break-even point. This step can quickly eliminate all infeasible transportation options that would cause the power plant's fuel costs to exceed its economic affordability, thus avoiding the risk of financial losses at the source. This not only greatly reduces the workload of subsequent complex financial analysis and improves decision-making efficiency, but also ensures that the alternative options that ultimately enter the detailed comparison stage all have basic economic rationality, laying a reliable foundation for subsequent accurate investment decisions.

[0014] In one optional implementation, the unit price of standard coal fed into the furnace is calculated using the following formula:

[0015] In the formula, This represents the unit price of standard coal for the furnace under the u-th transportation scheme. This indicates the ex-factory price of coal. This represents the railway freight cost in the u-th transportation option. This represents the road freight cost in the u-th transportation option. This represents the furnace-front cost in the u-th transportation option. Let C represent the carbon emission cost of the u-th transportation option, and C represent the unit carbon emission cost. This represents the carbon emissions of the u-th transportation option. This indicates the calorific value of coal products.

[0016] In this invention, the formula for calculating the unit price of standard coal charged into the furnace constructs a comprehensive and accurate cost accounting model by considering factors such as coal ex-factory price, railway and highway freight costs, furnace-related expenses, and carbon emission costs. This model can accurately quantify the real economic and environmental costs under different transportation routes and methods, helping enterprises to select the most cost-effective and low-carbon environmentally friendly feasible solutions from the source. This lays a reliable data foundation for subsequent in-depth financial feasibility analysis, thereby significantly improving the scientific nature and accuracy of decision-making.

[0017] In one optional implementation, the transportation scheme includes schemes for transporting coal from different coal mines to coal-fired power plants using different transportation methods and routes. The different transportation methods include road transportation, rail transportation, and combined road-rail transportation. Rail transportation includes using different rail transportation routes, using existing railways or newly built railways. The contribution benefit represents the cost savings of the selected transportation scheme compared to the benchmark transportation scheme, and is used as cash inflow. The various costs include construction costs and operating costs, and are used as cash outflow.

[0018] This invention systematically designs and compares various transportation options from different coal mines via highways, railways (including different existing or newly built routes), and combined road-rail transport. Using a comparison principle, the cost savings of each option compared to a benchmark option are scientifically quantified as contribution benefits (cash inflows), while accurately identifying the corresponding construction and operating costs (cash outflows). This method provides coal-fired power companies with clear quantitative decision-making basis, enabling them to accurately select the economically feasible optimal transportation route in the early stages of a project, effectively optimize resource allocation, and achieve full-cycle cost control and maximized benefits.

[0019] Secondly, the present invention provides a transportation project evaluation device for coal-fired power plants. The device includes: a transportation scheme determination module, used to determine several qualified coal mines and transportation schemes from the coal mines to the coal-fired power plants based on the parameters of the coal-fired power units in the coal-fired power plant; a carbon emission cost determination module, used to determine the carbon emission cost of each transportation scheme based on the energy consumption of the transportation schemes; a unit price determination module, used to determine the standard coal unit price for the transportation schemes based on the cost, carbon emission cost, and coal ex-factory price; a screening module, used to screen transportation schemes for financial benefit analysis based on a comparison between the standard coal unit price and the economic standard coal unit price for coal-fired power plants; and an analysis and decision-making module, used to perform financial benefit analysis on the screened transportation schemes and form a decision list for transportation projects based on the analysis results.

[0020] Thirdly, the present invention provides an electronic device, comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the coal-fired power plant transportation project evaluation method described in the first aspect or any corresponding embodiment thereof.

[0021] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the coal-fired power plant transportation project evaluation method described in the first aspect or any corresponding embodiment thereof.

[0022] Fifthly, the present invention provides a computer program product, including computer instructions, which are used to cause a computer to execute the coal-fired power plant transportation project evaluation method described in the first aspect or any corresponding embodiment thereof. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the first type of evaluation method for transportation projects of coal-fired power plants according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the second process of the evaluation method for transportation projects of coal-fired power plants according to an embodiment of the present invention; Figure 3 This is a structural block diagram of a coal-fired power plant transportation project evaluation device according to an embodiment of the present invention; Figure 4This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0025] 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 embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It is understood that before using the technical solutions disclosed in the various embodiments of the present invention, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in the present invention and their authorization should be obtained in accordance with relevant laws and regulations through appropriate means.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] According to an embodiment of the present invention, an embodiment of a method for evaluating transportation projects of coal-fired power plants is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0029] This embodiment provides a method for evaluating transportation projects in coal-fired power plants. Figure 1 This is a flowchart of the evaluation method for transportation projects of coal-fired power plants according to an embodiment of the present invention, such as... Figure 1 As shown, the process includes the following steps: Step S101: Based on the parameters of coal-fired power units in coal-fired power enterprises, determine several qualified coal mines and transportation schemes from the coal mines to the coal-fired power enterprises.

[0030] In this evaluation method for transportation projects of coal-fired power plants, "coal-fired power plant" refers to an enterprise that generates electricity primarily from coal, such as a thermal power plant. Transportation refers to the entire logistics process of transporting coal from the coal mine pithead to the boiler inlet of the coal-fired power plant unit. A project refers to an investment activity that requires capital investment, has long-term benefits, and can be evaluated financially as an independent unit. Specifically, in this application, transportation project evaluation refers to the financial evaluation of the transportation plan. The evaluation method in this application objectively compares the advantages and disadvantages of different transportation plans from a financial perspective before implementing the transportation plan, thus achieving an assessment of the overall financial feasibility of the project.

[0031] Specifically, for any coal-fired power plant, the first step is to identify potential coal mines that meet the requirements based on the boiler design parameters it uses. There is a certain matching relationship between boiler design parameters and coal quality. If the two are not matched, it may lead to low boiler operating efficiency, frequent malfunctions, and even serious economic losses. For example, high-parameter, large-capacity boilers have stricter requirements for coal ash content, sulfur content, calorific value, and ash fusion properties.

[0032] After identifying eligible coal mines, it is necessary to plan transportation routes from the coal mines to coal-fired power plants. That is, for any given coal mine, it is necessary to plan different transportation routes for transporting its coal to the coal-fired power plants, as well as the corresponding transportation methods. A transportation route and the transportation methods used on that route constitute a transportation plan.

[0033] Step S102: Determine the carbon emission cost of each transportation scheme based on its energy consumption. Specifically, the energy consumption of each transportation scheme represents the amount of diesel, gasoline, or electricity required to transport the goods using that scheme. Different energy sources produce different carbon emissions. Therefore, for each transportation scheme, it is necessary to calculate all the energy consumed during transportation and combine the carbon emissions of all energy sources to obtain the carbon emission cost of each transportation scheme. Thus, the carbon emission cost of each transportation scheme is determined using the following formula:

[0034]

[0035] In the formula, This represents the carbon emissions of the u-th transportation option. This represents the energy consumption of the i-th transportation option in the u-th transportation plan. This represents the carbon emission factor of the i-th energy source in the u-th transportation option. Indicates the cost per unit of carbon emissions. This represents the carbon emission cost of the u-th transportation option. The carbon emission cost can be determined with reference to carbon trading market prices.

[0036] Step S103: Determine the standard coal unit price for the power plant based on the transportation plan's costs, carbon emission costs, and coal ex-factory prices. The standard coal unit price refers to the comprehensive cost unit price calculated based on standard coal during power plant combustion, determined by parameters such as the raw coal unit price, raw coal quantity, and lower heating value of the raw coal. In this embodiment, when determining the raw coal price, the coal ex-factory price, transportation plan costs, and carbon emission costs are considered simultaneously. The transportation plan costs include not only the costs of transporting coal from the coal mine to the coal-fired power plant but also pre-furnace costs. These pre-furnace costs refer to the costs incurred from the time the coal enters the power plant until it enters the boiler, including losses incurred within the power plant, in-plant handling and transportation costs, stacking and reclaiming costs, and management fees, etc.

[0037] Step S104 involves comparing the standard coal price for blast furnace input and the economic standard coal price for blast furnace input of coal-fired power units to select transportation schemes that will not incur financial losses. The economic standard coal price for blast furnace input of a coal-fired power unit refers to the critical point at which the power plant can bear the highest coal cost. Specifically, it is calculated by subtracting other unit costs besides coal from the electricity sales price, and then dividing the difference by the unit coal consumption for power generation. If the calculated standard coal price for blast furnace input exceeds the economic standard coal price for blast furnace input of the coal-fired power unit, it indicates that the coal-fired power plant will incur losses by adopting this transportation scheme. Therefore, before conducting the financial benefit analysis, transportation schemes that will not incur losses are selected by comparing the standard coal price for blast furnace input and the economic standard coal price for blast furnace input of coal-fired power units.

[0038] Step S105 involves conducting a financial benefit analysis on the selected transportation options and generating a decision list for the transportation projects based on the analysis results. Specifically, conducting a financial benefit analysis on the selected transportation options means further analyzing the financial benefits of the previously selected transportation options that will not incur losses. During the financial benefit analysis, indicators that characterize the economic benefits generated by the transportation option can be used for evaluation. Based on the evaluation results, different transportation options are ranked to generate a decision list. Based on this decision list, decision-makers can select the optimal coal transportation option based on relevant actual conditions.

[0039] This invention quantifies the carbon emission costs during transportation and incorporates them into the total cost. Combined with coal ex-factory prices and freight charges, a more comprehensive standard coal price for furnace operation is calculated, serving as a key indicator for initial screening and ensuring the economic feasibility of the proposed solution. It also fully reflects the impact of carbon emission costs during transportation on project construction, effectively overcoming the shortcomings of overly simplistic and crude existing evaluation theories. Subsequently, this method further conducts a rigorous financial benefit analysis of feasible solutions. This comprehensive process effectively overcomes the limitations of traditional methods that only compare freight costs, systematically considering project investment, operating costs, environmental costs, and overall profitability. Ultimately, it provides a quantitative basis for coal-fired power plants to select the optimal transportation route, significantly improving the scientific and rational nature of project decision-making. It solves the problem of incomplete and inaccurate cost and benefit identification calculations for existing coal-fired power plant supporting transportation projects.

[0040] This embodiment provides a method for evaluating transportation projects of coal-fired power plants, which includes the following steps: Step S201: Based on the parameters of coal-fired power units in coal-fired power enterprises, determine several qualified coal mines and transportation schemes from the coal mines to the coal-fired power enterprises.

[0041] Specifically, the transportation plan includes schemes for transporting coal from different coal mines using different transportation methods and routes to coal-fired power plants. Different transportation methods include road transport, rail transport, and combined road-rail transport. Rail transport includes using different rail transport routes, utilizing existing railways or constructing new ones. In particular, when planning a transportation plan, it is necessary to take the coal mine as the starting point and the coal-fired power plant as the destination, and plan the transportation routes and methods between the two based on existing conditions. For example, if the coal mine already has a dedicated railway line, the transportation method can be determined. In this case, it is necessary to plan the railway connection scheme, that is, to design a reasonable connection scheme and a dedicated railway line design scheme for the power plant based on the existing railway routes for rail transport from different coal mines to the vicinity of the power plant. If the coal mine only has a road access, a road transport route between the coal mine and the coal-fired power plant can be planned. At the same time, it is also possible to consider whether it is possible to construct a new railway line for the coal mine or the coal-fired power plant, thereby generating a new rail transport route. Additionally, it is also possible to consider transporting coal first by rail to a freight station near the coal-fired power plant, and then transferring it by road to the coal-fired power plant, forming a combined road-rail transport route, etc.

[0042] Step S202: Determine the carbon emission cost of each transportation scheme based on its energy consumption. For details, please refer to [link to details]. Figure 1 Step S102 of the illustrated embodiment will not be described again here.

[0043] Step S203: Determine the standard coal unit price for the furnace based on the transportation plan's cost, carbon emission cost, and coal ex-factory price. Specifically, the standard coal unit price for the furnace is calculated using the following formula:

[0044] In the formula, This represents the unit price of standard coal for the furnace under the u-th transportation scheme. This indicates the ex-factory price of coal. This represents the railway freight cost in the u-th transportation option. This represents the road freight cost in the u-th transportation option. This represents the furnace-front cost in the u-th transportation option. Let C represent the carbon emission cost of the u-th transportation option, and C represent the unit carbon emission cost. This represents the carbon emissions of the u-th transportation option. This indicates the calorific value of coal products.

[0045] It should be noted that for each transportation option, if only rail transport or only road transport is used, the corresponding freight cost is only the rail freight cost or only the road freight cost, and the other freight cost is 0; if a combined rail and road transport option is used, the unit price of standard coal entering the furnace includes both rail freight cost and road freight cost.

[0046] Step S204: Based on the comparison between the standard coal price for furnace feed and the economic standard coal price for coal-fired power units, a transportation scheme is selected and a financial benefit analysis is performed.

[0047] Specifically, step S204 includes: Step S2041: Determine the relationship between the unit price of standard coal fed into the furnace and the economic unit price of standard coal fed into the furnace for coal-fired power units.

[0048] Step S2042: When the unit price of standard coal entering the furnace is lower than the economic unit price of standard coal entering the furnace for coal-fired power units, the transportation plan corresponding to the unit price of standard coal entering the furnace is retained.

[0049] Step S2043: When the unit price of standard coal entering the furnace is higher than the economic unit price of standard coal entering the furnace for coal-fired power units, the transportation plan corresponding to the unit price of standard coal entering the furnace is discarded.

[0050] Specifically, if the calculated unit price of standard coal for the furnace under the transportation plan is higher than the economic unit price of standard coal for the coal-fired power unit, then the transportation plan will result in subsequent operating losses and has no financial benefits, thus requiring no financial evaluation. If the calculated unit price of standard coal for the furnace under the transportation plan is lower than the economic unit price of standard coal for the coal-fired power unit, then the coal transportation plan will not lead to negative cash flow and will improve the operating efficiency of the coal-fired power unit, allowing for further financial evaluation.

[0051] Step S205: Conduct a financial benefit analysis on the selected transportation options and generate a decision list for the transportation projects based on the analysis results.

[0052] Specifically, step S205 includes: Step S2051: Compare the selected transportation plan with the benchmark transportation plan to determine the contribution benefits and various costs of the selected transportation plan.

[0053] Specifically, this embodiment uses a comparison principle of presence and absence in the financial benefit analysis to realize the contribution benefits of each transportation scheme to the cost of fuel coal and various costs. Here, the comparison of presence and absence refers to the comparison between having a project and not having a project. Having a project refers to the situation that will occur during the calculation period when the system under study implements the proposed project; not having a project refers to the most likely situation when the system under study does not implement the project. Specifically, in this application, having a project means that the transportation project adopts a determined transportation scheme, while not having a project refers to the coal supply scheme when the transportation project does not adopt a transportation scheme. This embodiment refers to this coal supply scheme as the benchmark transportation scheme. This benchmark transportation scheme can be the coal supply scheme currently used by a coal-fired power plant, or the coal supply scheme most likely to be adopted by a new coal-fired power plant.

[0054] After determining the baseline transportation plan, each of the selected transportation plans is compared with the baseline plan to determine the contribution benefits and various costs of each plan compared to the baseline plan. The contribution benefits represent the cost savings of the selected transportation plan compared to the baseline plan, and are used as cash inflows. The various costs represent the total resource costs incurred in implementing the transportation plan, specifically including construction costs and operating costs, and are used as cash outflows.

[0055] In this embodiment, the difference in the unit price of standard coal fed into the furnace between the transportation plan and the benchmark transportation plan is taken as the contribution benefit. The unit price of standard coal fed into the furnace for each transportation plan has already been calculated in the above steps. The benchmark transportation plan is also calculated in the same way, and then the unit price of standard coal fed into the furnace for the transportation plan to be compared is subtracted from the unit price of standard coal fed into the furnace for the benchmark transportation plan to obtain the contribution benefit of that transportation plan. That is, this contribution benefit can be understood as the contribution to cost savings for coal-fired power plants by using a transportation plan with a lower unit price of standard coal fed into the furnace, and can be regarded as a cash inflow for the coal-fired power plant. The contribution benefit calculated above is the unit contribution benefit. When evaluating on an annual basis, this contribution benefit is multiplied by the annual standard coal consumption of the enterprise to obtain the annual contribution benefit. It should be noted that the calculated contribution benefit should be a positive value. If it is a negative value, the corresponding transportation plan is discarded, and the benchmark plan is considered as the transportation plan to be evaluated subsequently.

[0056] Construction costs, in the context of various costs, refer to the design and engineering investment for a newly constructed dedicated railway line, which represents the construction cost under the new railway transportation mode. For road transportation, since it utilizes existing roads entirely, the cost of use is reflected in the freight charges, and its construction cost can be disregarded. Operating costs, on the other hand, represent the annual costs incurred after the transportation plan is operational. For example, for railway transportation, this includes the maintenance costs of the dedicated railway line itself, labor costs, and electricity costs, which are estimated based on the specific operational characteristics of the transportation plan.

[0057] Step S2052: Based on the aforementioned contribution benefits and various costs, a financial benefit evaluation is conducted on the selected transportation schemes using preset financial evaluation indicators, and transportation schemes that meet the evaluation criteria are selected. Specifically, appropriate financial evaluation indicators are determined according to the power plant's requirements for project investment decisions, such as internal rate of return and net present value. Depending on the power plant's project capital structure, if loans exist, a post-financing analysis from an equity perspective is also required, including return on total investment and net profit margin on equity.

[0058] Specifically, step S2052 includes: Step a1 involves evaluating the selected transportation schemes before financing using the total investment internal rate of return (IRR) and financial net present value (NPV) indicators. Specifically, the total investment IRR (pre-tax) (also known as the Financial Internal Rate of Return, FIRR) represents the discount rate that makes the sum of the present values ​​of net cash flows in each year of the calculation period zero. That is, the total investment IRR satisfies the following formula:

[0059] In the formula, CI represents cash inflow, CO represents cash outflow, n represents the project calculation period, and t represents the year.

[0060] Financial Net Present Value (FNPV) represents the sum of the present values ​​of net cash flows for each year, calculated using a predetermined discount rate. It is determined using the following formula:

[0061] In the formula, i represents the set discount rate, which is generally the benchmark rate of return. The benchmark rate of return is the minimum profit level required by enterprises or investors when making project decisions, and it is also the core criterion for judging whether a project is feasible.

[0062] Based on the above formula, the internal rate of return (IRR) and net present value (NPV) of the selected transportation schemes are calculated respectively. The parameters in the formula can be determined with reference to relevant standards, such as the provisions in "Methods and Parameters for Economic Evaluation of Construction Projects", which will not be elaborated here.

[0063] Step a2 involves selecting transportation schemes that meet the first evaluation criteria based on the pre-financing evaluation results. Specifically, the first evaluation criteria represent the feasibility judgment standards for the total investment internal rate of return (IRR) and net present value (NPV) indicators. The feasibility judgment standard for the IRR requires it to be greater than the benchmark rate of return, meaning the project's profitability is considered satisfactory. For example, the pre-tax IRR may be greater than a first threshold, which can be set according to the company's specific characteristics; this embodiment does not impose specific limitations on this. The feasibility judgment standard for NPV requires it to be greater than zero, indicating that the transportation scheme is financially acceptable. Therefore, for each selected transportation scheme, the IRR and NPV indicators are evaluated according to the first evaluation criteria. When they meet the first evaluation criteria, the pre-financing evaluation is considered successful, and these transportation schemes undergo a post-financing evaluation. Schemes that do not meet the first evaluation criteria can be discarded.

[0064] Step a3: When financing is required, the transportation scheme that meets the first evaluation criterion is evaluated post-financing using the equity internal rate of return (IRR), net present value (NPV), return on investment (ROI), and equity net profit margin. Specifically, the formulas used to calculate the IRR and NPV are the same as those used before financing, except that the net cash flows (cash inflows, cash outflows, and discount rates) are different. The return on investment (ROI) is calculated using the following formula:

[0065] In the formula, EBIT represents the earnings before interest and taxes (EBIT) in a normal year or the average annual EBIT during the operating period; TI is the total investment of the project. EBIT = Net Profit + Income Tax + Interest Expense.

[0066] The rate of return on common stockholders' equity (ROE) reflects the profitability of a project's equity and is calculated using the following formula:

[0067] In the formula, NP represents the annual net profit in a normal year or the average annual net profit during the operating period; EC represents the project's capital.

[0068] It should be noted that for transportation projects requiring financing, a post-financing evaluation will be conducted based on indicators such as the internal rate of return on equity, net present value, return on total investment, and net profit margin on equity. For transportation projects not requiring financing, no post-financing evaluation is necessary. Whether financing is required can be determined based on the specific circumstances.

[0069] Step a4: Based on the post-financing evaluation results, select transportation schemes that meet the second evaluation criteria. Specifically, in the second evaluation criteria, the internal rate of return (IRR) and net present value (NPV) indicators for equity are similar to those in the first evaluation criteria. The feasibility criterion for the IRR is also greater than the benchmark rate of return, for example, the IRR for equity must be greater than the second threshold. The NPV indicator must be greater than the third threshold. The feasibility criterion for the total investment return rate is that the total investment return rate must be greater than the fourth threshold, indicating that the project has a certain profitability in total investment and is acceptable. The feasibility criterion for the net profit margin on equity is that the net profit margin on equity must be greater than the fifth threshold, indicating that the profitability of the project's equity can meet the requirements and is financially feasible. The thresholds can be determined by the company's own operating characteristics; this embodiment does not impose specific limitations on this.

[0070] Similar to the pre-financing evaluation, if the equity internal rate of return, net present value, total investment return rate, and equity net profit rate of the transportation plan all meet the second evaluation criteria, it can be retained; otherwise, it should be discarded.

[0071] Step S2053: Form a decision list for the transportation project based on the transportation schemes that meet the evaluation criteria.

[0072] Specifically, step S2053 includes: Step b1: When financing is not required, a decision list for the transportation project is formed based on transportation options that meet the first evaluation criterion.

[0073] Step b2: When financing is needed, a decision list for the transportation project is formed based on transportation options that meet the second evaluation criteria.

[0074] Specifically, for transportation schemes that do not require financing, a decision list can be directly formed based on transportation schemes that meet the first evaluation criterion. For transportation schemes that require financing, a decision list should be formed using transportation schemes that meet the second evaluation criterion. When forming the decision list using transportation schemes, they can be sorted. For example, weights can be assigned to each evaluation indicator, the evaluation indicators for each transportation scheme can be weighted and summed, and then the schemes can be sorted based on the weighted sum. A decision list is then generated based on the sorting results. Other sorting methods can also be used in other implementations, which will not be elaborated here.

[0075] As one or more specific application embodiments of the present invention, such as Figure 2 As shown, the evaluation method for the transportation project of this coal-fired power plant adopts the following process: Based on the boiler design parameters of coal-fired power plants, potential coal mines meeting the criteria are identified, and multiple transportation options are determined based on the transportation methods and routes between the coal mines and the power plants. For each transportation option, the corresponding coal price, transportation costs, furnace-related costs, energy consumption, and carbon emission costs are summarized to calculate the standard coal price per unit area for the furnace. This price is then compared with the economic standard coal price per unit area for the furnace, and options that do not meet the standard are discarded. Qualified options proceed to the pre-financing analysis stage, where their total investment internal rate of return (pre-tax) and net present value (NPV) are calculated. If these indicators meet the evaluation criteria, the project is considered feasible. Subsequently, for projects requiring financing, a post-financing analysis is conducted, evaluating indicators such as internal rate of return, total investment return, NPV, and net profit margin on equity from an equity perspective. If these indicators also meet the profitability requirements, the option is ultimately selected, forming a list for decision-making. The entire process involves multiple rounds of financial threshold screening to ensure that the final options are economically feasible at both the project and shareholder levels.

[0076] This embodiment also provides a coal-fired power plant transportation project evaluation device, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0077] This embodiment provides an evaluation device for transportation projects in coal-fired power plants, such as... Figure 3 As shown, it includes: The transportation scheme determination module 31 is used to determine several qualified coal mines and transportation schemes from coal mines to coal power enterprises based on the parameters of coal-fired power units in coal power enterprises. Carbon emission cost determination module 32 is used to determine the carbon emission cost of each transportation scheme based on the energy consumption of the transportation scheme; The unit price determination module 33 is used to determine the unit price of standard coal entering the furnace for the transportation plan based on the cost of the transportation plan, the carbon emission cost, and the coal ex-factory price. The screening module 34 is used to screen transportation schemes based on the comparison between the standard coal price for furnace feed and the economic standard coal price for coal-fired power units, and to conduct financial benefit analysis. The analysis and decision module 35 is used to conduct financial benefit analysis on the selected transportation options and generate a decision list for transportation projects based on the analysis results.

[0078] The coal-fired power plant transportation project evaluation device provided in this embodiment of the invention can execute the coal-fired power plant transportation project evaluation method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects for executing the method. Further functional descriptions of the above modules and units are the same as in the corresponding embodiments described above, and will not be repeated here.

[0079] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0080] The following is a detailed reference. Figure 4 This diagram illustrates a structural schematic suitable for implementing an electronic device according to embodiments of the present invention. The electronic device may include a processor (e.g., a central processing unit, a graphics processing unit, etc.) 11, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 12 or a program loaded from memory 18 into random access memory (RAM) 13. The RAM 13 also stores various programs and data required for the operation of the electronic device. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0081] Typically, the following devices can be connected to I / O interface 15: input devices 16 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 17 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; memory devices 18 including, for example, magnetic tapes, hard disks, etc.; and communication devices 19. Communication device 19 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 4 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown, and more or fewer devices may be implemented or have instead.

[0082] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 19, or installed from a memory 18, or installed from a ROM 12. When the computer program is executed by the processor 11, it performs the functions defined in the coal-fired power plant transportation project evaluation method of the embodiments of the present invention.

[0083] Figure 4 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0084] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the coal-fired power plant transportation project evaluation method shown in the above embodiments is implemented.

[0085] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0086] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A method for evaluating transportation projects in coal-fired power plants, characterized in that, The method includes: Based on the parameters of coal-fired power units in coal-fired power enterprises, several qualified coal mines and transportation schemes from the coal mines to the coal-fired power enterprises are determined. The carbon emission cost of each transportation scheme is determined based on its energy consumption. The unit price of standard coal for the furnace under the transportation plan is determined based on the cost of the transportation plan, carbon emission costs, and coal ex-factory prices. A transportation scheme based on a comparison and selection of the standard coal unit price for furnace feed and the economic standard coal unit price for coal-fired power units, and a financial benefit analysis. Financial benefit analysis was conducted on the selected transportation options, and a decision list for transportation projects was formed based on the analysis results.

2. The method according to claim 1, characterized in that, Conduct financial benefit analysis on the selected transportation options, and based on the analysis results, generate a decision list for the transportation projects, including: By comparing the selected transportation options with the baseline transportation options, the contribution benefits and various costs of the selected transportation options are determined. Based on the aforementioned contribution benefits and various costs, the financial benefits of the selected transportation schemes are evaluated using preset financial evaluation indicators, and transportation schemes that meet the evaluation criteria are selected. A decision list for transportation projects is formed based on transportation options that meet the evaluation criteria.

3. The method according to claim 2, characterized in that, The financial benefits of the selected transportation schemes are evaluated using preset financial evaluation indicators, and transportation schemes that meet the evaluation criteria are selected, including: The internal rate of return on total investment and the net present value of financial assets were used to evaluate the selected transportation schemes before financing. Transportation options that meet the first evaluation criterion are selected based on the pre-financing evaluation results. When financing is needed, the following indicators are used to evaluate the transportation schemes that meet the first evaluation criteria after financing: the internal rate of return on equity, the net present value, the return on total investment, and the net profit rate on equity. Transportation options that meet the second evaluation criteria are selected based on the post-financing evaluation results.

4. The method according to claim 3, characterized in that, A decision list for transportation projects is formed based on transportation options that meet the evaluation criteria, including: When no financing is required, a decision list for the transportation project is formed based on transportation options that meet the first evaluation criterion. When financing is needed, a decision list for the transportation project is formed based on transportation options that meet the second evaluation criteria.

5. The method according to claim 1, characterized in that, Transportation schemes that undergo financial benefit analysis based on a comparison and selection of the standard coal price for furnace feed and the economic standard coal price for coal-fired power units include: Determine the relationship between the standard coal price charged to the furnace and the economic standard coal price charged to the furnace for coal-fired power units; When the standard coal price for furnace feed is lower than the economic standard coal price for coal-fired power units, the transportation plan corresponding to the standard coal price for furnace feed shall be retained. When the unit price of standard coal entering the furnace is higher than the economic unit price of standard coal entering the furnace for coal-fired power units, the transportation plan corresponding to the unit price of standard coal entering the furnace shall be discarded.

6. The method according to claim 1, characterized in that, The unit price of standard coal fed into the furnace is calculated using the following formula: In the formula, This represents the unit price of standard coal for the furnace under the u-th transportation scheme. This indicates the ex-factory price of coal. This represents the railway freight cost in the u-th transportation option. This represents the road freight cost in the u-th transportation option. This represents the furnace-front cost in the u-th transportation option. Let C represent the carbon emission cost of the u-th transportation option, and C represent the unit carbon emission cost. This represents the carbon emissions of the u-th transportation option. This indicates the calorific value of coal products.

7. The method according to claim 2, characterized in that: The transportation plan includes plans to transport coal from different coal mines to coal-fired power plants using different transportation methods and routes. The different transportation methods include road transportation, rail transportation, and combined road and rail transportation. Rail transportation includes using different rail transportation routes, using existing railways or newly built railways. The contribution benefit represents the cost savings of the selected transportation plan compared to the baseline transportation plan, and is used as a cash inflow. The various costs include construction costs and operating costs, and are used as cash outflows.

8. A device for evaluating transportation projects in coal-fired power plants, characterized in that, The device includes: The transportation scheme determination module is used to determine several qualified coal mines and transportation schemes from coal mines to coal power enterprises based on the parameters of coal-fired power units in coal-fired power enterprises. A carbon emission cost determination module is used to determine the carbon emission cost of each transportation scheme based on the energy consumption of the transportation scheme. The unit price determination module is used to determine the unit price of standard coal for the furnace based on the cost of the transportation plan, carbon emission cost, and coal ex-factory price. The screening module is used to screen transportation schemes based on a comparison between the standard coal price for furnace feed and the economic standard coal price for coal-fired power units, and to conduct financial benefit analysis. The analysis and decision-making module is used to conduct financial benefit analysis on the selected transportation options and generate a decision list for transportation projects based on the analysis results.

9. An electronic device, characterized in that, include: A memory and a processor are interconnected, the memory storing computer instructions, and the processor executing the computer instructions to perform the coal-fired power plant transportation project evaluation method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the coal-fired power plant transportation project evaluation method as described in any one of claims 1 to 7.

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