CN114723219B - Substation building construction method and cost assessment method, device and electronic equipment - Google Patents

Abstract

The application is applicable to the technical field of building photovoltaics, and provides a method and a device for evaluating the building construction mode and the manufacturing cost of a transformer substation, and electronic equipment, wherein the method for evaluating the building construction mode and the manufacturing cost of the transformer substation comprises the following steps: acquiring construction parameters of a transformer substation building; calculating the annual net income of the transformer substation building in a photovoltaic building integrated construction mode and a roof photovoltaic independent construction mode according to construction parameters of the transformer substation building; based on annual net income of a photovoltaic building integrated construction mode and a roof photovoltaic independent construction mode, a profit and loss balance construction cost model is constructed, and a construction mode of a transformer substation building is determined. The application carries out comprehensive quantitative evaluation on the total life cycle cost of different building modes of the transformer substation building, provides a transformer substation building photovoltaic building evaluation method, and has important significance for guiding integrated investment decision, popularization strategy and subsidy mechanism of the transformer substation building.

Description

Substation building construction method and cost assessment method, device and electronic equipment

Technical Field

The present application belongs to the field of building photovoltaic technology, and in particular relates to substation building construction methods and cost assessment methods, devices and electronic equipment.

Background technique

Photovoltaic power stations can be divided into centralized power stations and distributed power stations. Unlike centralized power stations that directly connect to the Internet, distributed power stations generate electricity for their own use at the user side, connect to the Internet with excess electricity, and balance and adjust the distribution system. Distributed power stations can be divided into two types: integrated with buildings and separated from buildings. According to the different ways of integration with buildings, they can be divided into BAPV (normal photovoltaic components) and BIPV (building integrated photovoltaic).

Although a lot of research has been conducted at home and abroad on the economic benefits of photovoltaic power generation and photovoltaic building integrated construction methods, there has not been any discussion specifically on measuring the value of photovoltaic building integrated construction methods in substation promotion from the perspective of break-even strategy.

Summary of the invention

In order to overcome the problems existing in the related art, the embodiments of the present application provide a substation building construction method and a cost assessment method, device and electronic equipment.

This application is implemented through the following technical solutions:

In a first aspect, an embodiment of the present application provides a substation building construction method and a cost assessment method, including: obtaining the construction parameters of the substation building, wherein the construction method of the substation building includes a photovoltaic building integrated construction method and a rooftop photovoltaic independent construction method; according to the construction parameters of the substation building, calculating the annual net income of the substation building under the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method; based on the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, constructing a break-even construction cost model to determine the construction method of the substation building.

Based on the first aspect, in some possible implementations, the construction parameters of the substation building are obtained, including photovoltaic power generation installation area, annual utilization hours, operating life, annual operation and maintenance costs, and construction cost level.

Based on the first aspect, in some possible implementations, the annual net income of the substation building under the photovoltaic building integration construction mode and the rooftop photovoltaic independent construction mode is calculated according to the construction parameters of the substation building, including: calculating the annual net income of the photovoltaic building integration construction mode through R ₁ =Q ₁ ×P ₀ -(C ₁ ×CRF ₁ +C _1M )=W ₁ ×H ₁ ×P ₀ -(C ₁₀ ×W ₁ ×CRF ₁ +C _10M ×W ₁ ); calculating the annual net income of the rooftop photovoltaic independent construction mode through R ₂ =Q ₂ ×P ₀ -(C ₂ ×CRF ₂ +C _2M )=W ₂ ×H ₂ ×P ₀ -(C ₂₀ ×W ₂ ×CRF ₂ +C _20M ×W ₂ ); wherein R 1 is the annual net income of the photovoltaic building integration, P ₁ is the annual net income of the photovoltaic building integration, and P 2 is the annual net income of the rooftop photovoltaic independent construction mode. = ₀ is the electricity price of photovoltaic power generation sold to the power grid (photovoltaic grid-connected at parity price, the grid-connected electricity price implements the benchmark grid-connected electricity price of coal-fired units), _Q1 is the annual power generation of photovoltaic power generation, _C1 is the total initial investment cost of the photovoltaic building integration construction, _CRF1 is the conversion factor of the initial investment of photovoltaic building integration into the equivalent annual value, _C1M is the annual maintenance cost of the photovoltaic building integration, _W1 is the total installed capacity of photovoltaic power generation of the photovoltaic building integration, _H1 is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration, _C10 is the initial construction cost of the photovoltaic power generation unit capacity of the photovoltaic building integration, _C10M is the annual operation and maintenance cost of the photovoltaic power generation unit capacity of the photovoltaic building integration; _R2 is the annual net income of the independent construction of the rooftop photovoltaic, _Q2 is the annual power generation of photovoltaic power generation, _C2 is the total initial investment cost of the independent construction of the rooftop photovoltaic, _CRF2 is the conversion factor of the initial investment of the independent construction of the rooftop photovoltaic into the equivalent annual value, _C2M is the annual maintenance cost of the independent construction of the rooftop photovoltaic, W ₂ is the total installed capacity of the photovoltaic power generation of the independent roof photovoltaic construction, H ₂ is the annual utilization hours of the power generation of the independent roof photovoltaic construction, C ₂₀ is the initial construction cost per unit capacity of the independent roof photovoltaic construction, and C _20M is the annual operation and maintenance cost per unit capacity of the independent roof photovoltaic construction.

Based on the first aspect, in some possible implementations, the initial investment of the photovoltaic building integration is converted into a conversion factor of equivalent annual value by Calculated; wherein, CRF ₁ is the conversion factor for converting the initial investment of the photovoltaic building integration into the equivalent annual value, i is the discount rate, and n ₁ is the total operating life of the photovoltaic building integration.

Based on the first aspect, in some possible implementations, the annual net income of the photovoltaic building integrated construction method and the roof photovoltaic independent construction method is used to construct a break-even construction cost model to determine the construction method of the substation building, including: according to the annual net income of the photovoltaic building integrated construction method and the roof photovoltaic independent construction method, by R ₁ =R ₂ , calculating the break-even construction cost of the photovoltaic building integrated construction cost; based on the break-even point, by The construction cost per unit area of the photovoltaic building integration of the substation building is calculated; wherein, C′ ₁₀ is the construction cost per unit area of the photovoltaic building integration under the break-even condition, H ₁ is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration, H ₂ is the annual utilization hours of power generation of the independent roof photovoltaic construction, S ₁ is the total construction area of photovoltaic panels of the photovoltaic building integration, S ₂ is the total construction area of photovoltaic panels of the independent roof photovoltaic construction, P ₀ is the electricity price of photovoltaic power generation to the grid (photovoltaic parity grid access, the grid-connected electricity price implements the benchmark grid-connected electricity price of coal-fired units), CRF ₁ is the conversion factor of the initial investment of the photovoltaic building integration into the equivalent annual value, C _10M is the annual operation and maintenance cost per unit capacity of the photovoltaic power generation of the photovoltaic building integration, C _20M is the annual operation and maintenance cost per unit capacity of the photovoltaic power generation of the independent roof photovoltaic construction, C ₂₀ is the initial construction cost per unit capacity of the independent roof photovoltaic construction, and CRF ₂ is the conversion factor for converting the initial investment of the independent construction of the rooftop photovoltaic into the equivalent annual value; the construction method of the substation is determined by comparing the construction cost per unit area of the photovoltaic building integration of the substation with the actual construction cost.

Based on the first aspect, in some possible implementations, determining the construction method of the substation building includes: when the actual construction cost is higher than the break-even construction cost, adopting a rooftop photovoltaic independent construction mode; when the actual construction cost is lower than the break-even construction cost, adopting the substation photovoltaic building integrated construction method.

The above-mentioned substation building construction method and cost assessment method have conducted a comprehensive quantitative assessment of the full life cycle cost of the photovoltaic building integrated construction method of the substation building and the independent construction method of the building and roof photovoltaics, and proposed an evaluation model for the photovoltaic construction optimization method of the substation building based on the equal annual cost of the photovoltaic building integrated construction method and the independent construction method of the building and roof photovoltaics, which is of great significance for guiding the investment decision-making, promotion strategy and subsidy mechanism of the substation photovoltaic building integration.

In a second aspect, an embodiment of the present application provides a substation building construction method evaluation device, including: an acquisition module, acquiring construction parameters of a substation building, wherein the substation building construction method includes a photovoltaic building integrated construction method and a rooftop photovoltaic independent construction method;

A calculation module, used for calculating the annual net income of the substation building under the photovoltaic building integration construction mode and the roof photovoltaic independent construction mode according to the construction parameters of the substation building;

The evaluation module is used to construct a break-even construction cost model based on the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, and determine the construction method of the substation building.

In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and wherein the processor implements the method described in any one of claims 1 to 7 when calling and executing the computer program.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the substation building construction method and cost assessment method as described in any one of the first aspects are implemented.

It can be understood that the beneficial effects of the second to fourth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

FIG1 is a flow chart of a substation building construction method and a cost assessment method provided by an embodiment of the present application;

FIG2 is a schematic diagram of an application scenario of a substation building construction method and a cost assessment method provided in an embodiment of the present application;

FIG3 is a schematic diagram of an example calculation result of a substation building construction method and a cost assessment method provided in an embodiment of the present application;

FIG4 is a schematic diagram of an example calculation result of a substation building construction method and a cost assessment method provided in an embodiment of the present application;

FIG5 is a schematic diagram of an example calculation of a substation building construction method and a cost assessment method provided in an embodiment of the present application;

6 is a schematic diagram of the structure of a substation building construction method assessment device provided in an embodiment of the present application;

7 is a schematic diagram of the structure of a substation building construction method assessment device provided in an embodiment of the present application;

FIG8 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

Detailed ways

In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and/or combinations thereof.

It should also be understood that the term “and/or” used in the specification and appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

The substation building construction method and cost assessment method of the present application are described in detail below in conjunction with FIG. 1 .

FIG1 is a schematic flow chart of a substation building construction method and a cost assessment method provided by an embodiment of the present application. Referring to FIG1 , the substation building construction method and the cost assessment method are described in detail as follows:

In step 101, construction parameters of a substation building are obtained.

Among them, the construction methods of substation buildings include photovoltaic building integrated construction method and rooftop photovoltaic independent construction method.

Specifically, the construction parameters of the substation building may include: photovoltaic power generation installation area, annual utilization hours, operating life, annual operation and maintenance costs and construction cost level.

In step 102, according to the construction parameters of the substation building, the annual net income of the substation building under the photovoltaic building integration construction mode and the rooftop photovoltaic independent construction mode is calculated.

For example, it can be done by

R ₁ = Q ₁ × P ₀ - ( C ₁ × CRF ₁ + C _1M ) = W ₁ × H ₁ × P ₀ - ( C ₁₀ × W ₁ × CRF ₁ + C _10M × W ₁ )

The annual net income of the photovoltaic building integrated construction method is calculated.

Among them, _R1 is the annual net income of photovoltaic building integration, _P0 is the electricity price sold by photovoltaic power generation to the grid (photovoltaic grid parity, the grid-connected electricity price implements the benchmark grid-connected electricity price of coal-fired units), _Q1 is the annual power generation of photovoltaic power generation, _C1 is the total initial investment cost of photovoltaic building integration construction, _CRF1 is the conversion factor of the initial investment of photovoltaic building integration into the equivalent annual value, _C1M is the annual maintenance cost of photovoltaic building integration, _W1 is the total installed capacity of photovoltaic power generation of photovoltaic building integration, _H1 is the annual utilization hours of photovoltaic power generation of photovoltaic building integration, _C10 is the initial construction cost of photovoltaic power generation per unit capacity of photovoltaic building integration, and _C10M is the annual operation and maintenance cost of photovoltaic power generation per unit capacity of photovoltaic building integration;

For example, it can be done by

R ₂ =Q ₂ ×P ₀ -(C ₂ ×CRF ₂ +C _2M )=W ₂ ×H ₂ ×P ₀ -(C ₂₀ ×W ₂ ×CRF ₂ +C _20M ×W ₂ )

The annual net income of independent rooftop photovoltaic construction is calculated.

Among them, _R2 is the annual net income of independent construction of rooftop photovoltaics, _Q2 is the annual power generation of photovoltaic power generation, _C2 is the total initial investment cost of independent construction of rooftop photovoltaics, _CRF2 is the conversion factor of the initial investment of independent construction of rooftop photovoltaics into equivalent annual value, _C2M is the annual maintenance cost of independent construction of rooftop photovoltaics, _W2 is the total installed capacity of photovoltaic power generation of independent construction of rooftop photovoltaics, _H2 is the annual utilization hours of power generation of independent construction of rooftop photovoltaics, _C20 is the initial construction cost per unit capacity of independent construction of rooftop photovoltaics, and _C20M is the annual operation and maintenance cost per unit capacity of independent construction of rooftop photovoltaics.

In some embodiments, the conversion factor for converting the initial investment of BIPV into an equivalent annual value can be calculated by

Calculated. Among them, CRF ₁ is the conversion factor of the initial investment of photovoltaic building integration into the equivalent annual value, i is the discount rate, and n ₁ is the total operating life of photovoltaic building integration.

Optionally, the total installed capacity of photovoltaic power generation in photovoltaic building integration can be calculated by W ₁ =S ₁ ×D, where W ₁ is the total installed capacity of photovoltaic power generation in photovoltaic building integration, S ₁ is the total construction area of photovoltaic panels in photovoltaic building integration, and D is the installed capacity of photovoltaic panels per unit area.

In some embodiments, the conversion factor for converting the initial investment of independent rooftop photovoltaic construction into equivalent annual value can be calculated by

Calculated. Among them, CRF ₂ is the conversion factor of the initial investment of independent rooftop photovoltaic construction into equivalent annual value, i is the discount rate, and n ₂ is the total operating life of independent rooftop photovoltaic construction.

Optionally, the total installed capacity of independently constructed rooftop photovoltaic power generation can be calculated by W ₂ =S ₂ ×D; where W ₂ is the total installed capacity of independently constructed rooftop photovoltaic power generation, S ₂ is the total construction area of independently constructed rooftop photovoltaic power generation, and D is the installed capacity of photovoltaic panels per unit area.

In step 103, based on the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, a break-even construction cost model is constructed to determine the construction method of the substation building.

Specifically, according to the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, the break-even construction cost of the photovoltaic building integrated construction cost is calculated by R ₁ =R ₂ ;

Based on the break-even point,

The construction cost per unit area of the photovoltaic building integration of the substation building is calculated.

Among them, _C′10 is the unit area construction cost of photovoltaic building integration under the break-even condition, _H1 is the annual utilization hours of photovoltaic power generation of photovoltaic building integration, _H2 is the annual utilization hours of power generation of independent roof photovoltaic construction, _S1 is the total construction area of photovoltaic panels of photovoltaic building integration, _S2 is the total construction area of photovoltaic panels of independent roof photovoltaic construction, _P0 is the electricity price of photovoltaic power generation to the grid (photovoltaic grid parity, the grid-connected electricity price implements the benchmark grid-connected electricity price of coal-fired units), _CRF1 is the conversion factor of the initial investment of photovoltaic building integration into the equivalent annual value, _C10M is the annual operation and maintenance cost of photovoltaic power generation per unit capacity of photovoltaic building integration, _C20M is the annual operation and maintenance cost of photovoltaic power generation per unit capacity of independent roof photovoltaic construction, _C20 is the initial construction cost per unit capacity of independent roof photovoltaic construction, and _CRF2 is the conversion factor of the initial investment of independent roof photovoltaic construction into the equivalent annual value;

By comparing the construction cost per unit area of the photovoltaic building integration of the substation with the actual construction cost, the construction method of the substation is determined.

Optionally, determine the construction method of the substation building, including: when the actual construction cost is higher than the break-even construction cost, adopt an independent rooftop photovoltaic construction model; when the actual construction cost is lower than the break-even construction cost, adopt an integrated substation photovoltaic building construction method.

In one scenario, referring to FIG. 2 , in some embodiments, based on the embodiment shown in FIG. 1 , the above-mentioned substation building construction method and cost assessment method are specifically applied to a photovoltaic power generation project of a 110kV substation main control building, and an example calculation is carried out using this project as an example.

As shown in Figure 2, the main control building of the substation is 5 meters high, 8.66 meters wide and 20 meters long. After consulting the data, the optimal inclination angle of roof photovoltaics in the area is 30°, and the annual photovoltaic power generation utilization hours at the optimal inclination angle are 1,150 hours.

According to the mainstream photovoltaic building integrated construction method, there are three feasible solutions: photovoltaic sloping roof (30° inclination and only laid on the south side), photovoltaic flat roof and photovoltaic curtain wall (only laid on the south side). If the photovoltaic building independent construction method is adopted, the photovoltaic panels are laid separately on the flat roof through brackets (30° inclination facing south). The algorithm proposed in this application is used to calculate the break-even unit cost of the three BIPV construction methods respectively, and the economic evaluation of the scheme is carried out.

Solution 1: Photovoltaic sloping roof (inclination angle 30° and only laid on the south side)

Refer to Figure 3. It is calculated that the break-even construction cost of the photovoltaic building integrated substation under this scheme is 4.5638 yuan/W. The current average construction cost of photovoltaic building integrated in the region is 3.88 yuan/W. The actual cost is lower than the break-even cost. Therefore, the photovoltaic building integrated construction mode with photovoltaic sloping roofs has good economic benefits, and the BIPV mode is significantly better than the BAPV mode.

Option 2: Photovoltaic flat roof

Refer to Figure 4. It is calculated that the break-even construction cost of the photovoltaic building integration of the substation under this scheme is 3.8733 yuan/W. The current average construction cost of photovoltaic building integration in the region is 3.88 yuan/W. The actual cost is basically the same as the break-even cost. Therefore, the photovoltaic building integration construction mode using photovoltaic flat roofs is in a break-even state, and the economic efficiency of BIPV and BAPV modes is basically the same.

Option 3: Photovoltaic curtain wall

Refer to Figure 5. It is calculated that the break-even construction cost of the photovoltaic building integration of the substation under this scheme is 1.9915 yuan/W. The current average construction cost of photovoltaic building integration in the region is 3.88 yuan/W. The actual cost is much higher than the break-even cost. Therefore, the photovoltaic building integration construction model using photovoltaic curtain walls is in a loss-making state. The BIPV model is not as economical as the BAPV model. It is recommended to adopt the construction model of independently laying rooftop photovoltaic panels.

The above-mentioned substation building construction method and cost assessment method have conducted a comprehensive quantitative assessment of the full life cycle cost of the photovoltaic building integrated construction method of the substation building and the independent construction method of the building and roof photovoltaics, and proposed an evaluation model for the photovoltaic construction optimization method of the substation building based on the equal annual cost of the photovoltaic building integrated construction method and the independent construction method of the building and roof photovoltaics, which is of great significance for guiding the investment decision-making, promotion strategy and subsidy mechanism of the substation photovoltaic building integration.

It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Corresponding to the substation building construction method and cost assessment method described in the above embodiments, Figure 6 shows a structural block diagram of the substation building construction method assessment device provided in the embodiment of the present application. For the sake of convenience, only the parts related to the embodiment of the present application are shown.

6 , the substation building construction method evaluation device in the embodiment of the present application may include: an acquisition module 201 , a calculation module 202 and an evaluation module 203 .

Among them, the acquisition module 201 is used to obtain the construction parameters of the substation building; the calculation module 202 is used to calculate the annual net income of the substation building under the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method according to the construction parameters of the substation building; the evaluation module 203 is used to construct a break-even construction cost model based on the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, and determine the construction method of the substation building.

In some embodiments, the acquisition module 201 may be specifically used to: acquire construction parameters of the substation building.

Among them, the construction parameters of the substation building include photovoltaic power generation installation area, annual utilization hours, operating life, annual operation and maintenance costs and construction cost level.

In some embodiments, referring to FIG. 7 , based on the embodiment shown in FIG. 6 , the above-mentioned operation module 202 may include: a first operation unit 2021 , a second operation unit 2022 and an annual income operation unit 2023 .

The first calculation unit 221 is used to obtain a conversion factor for converting the initial investment of the photovoltaic building integration into an equivalent annual value;

The second calculation unit 222 is used to obtain a conversion factor for converting the initial investment of the independent construction of the rooftop photovoltaic system into an equivalent annual value;

The annual income calculation unit 2023 is used to obtain the annual net income of the substation building under the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method.

Exemplarily, the annual income calculation unit 2023 is specifically used to calculate the annual net income of the substation building under the photovoltaic building integrated construction mode and the rooftop photovoltaic independent construction mode according to the construction parameters of the substation building, including:

pass

R ₁ = Q ₁ × P ₀ - ( C ₁ × CRF ₁ + C _1M ) = W ₁ × H ₁ × P ₀ - ( C ₁₀ × W ₁ × CRF ₁ + C _10M × W ₁ )

Calculate the annual net income of the photovoltaic building integrated construction method;

pass

R ₂ =Q ₂ ×P ₀ -(C ₂ ×CRF ₂ +C _2M )=W ₂ ×H ₂ ×P ₀ -(C ₂₀ ×W ₂ ×CRF ₂ +C _20M ×W ₂ )

Calculate the annual net income of the independent rooftop photovoltaic construction method;

Among them, _R1 is the annual net income of the photovoltaic building integration, _P0 is the electricity price sold by photovoltaic power generation to the power grid (photovoltaic grid parity, the grid-connected electricity price implements the benchmark grid-connected electricity price of coal-fired units), _Q1 is the annual power generation of photovoltaic power generation, _C1 is the total initial investment cost of the construction of the photovoltaic building integration, _CRF1 is the conversion factor of the initial investment of the photovoltaic building integration into the equivalent annual value, _C1M is the annual maintenance cost of the photovoltaic building integration, _W1 is the total installed capacity of photovoltaic power generation of the photovoltaic building integration, _H1 is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration, _C10 is the initial construction cost of the photovoltaic power generation unit capacity of the photovoltaic building integration, and _C10M is the annual operation and maintenance cost of the photovoltaic power generation unit capacity of the photovoltaic building integration;

R ₂ is the annual net income of the independent construction of the rooftop photovoltaic system, Q ₂ is the annual power generation of photovoltaic power generation, C ₂ is the total initial investment cost of the independent construction of the rooftop photovoltaic system, CRF ₂ is the conversion factor of the initial investment of the independent construction of the rooftop photovoltaic system into the equivalent annual value, C _2M is the annual maintenance cost of the independent construction of the rooftop photovoltaic system, W ₂ is the total installed capacity of photovoltaic power generation of the independent construction of the rooftop photovoltaic system, H ₂ is the annual utilization hours of power generation of the independent construction of the rooftop photovoltaic system, C ₂₀ is the initial construction cost per unit capacity of the independent construction of the rooftop photovoltaic system, and C _20M is the annual operation and maintenance cost per unit capacity of photovoltaic power generation of the independent construction of the rooftop photovoltaic system.

In some embodiments, the evaluation module 203 can be specifically used to: construct a break-even construction cost model based on the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, and determine the construction method of the substation building, including:

According to the annual net income of the photovoltaic building integration construction method and the roof photovoltaic independent construction method, the break-even construction cost of the photovoltaic building integration construction cost is calculated by R ₁ =R ₂ ;

Based on the break-even point,

Calculate the construction cost per unit area of the photovoltaic building integration of the substation building;

Wherein, _C′10 is the construction cost per unit area of the photovoltaic building integration under the break-even condition, _H1 is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration, _H2 is the annual utilization hours of power generation of the independent roof photovoltaic construction, _S1 is the total construction area of photovoltaic panels of the photovoltaic building integration, _S2 is the total construction area of photovoltaic panels of the independent roof photovoltaic construction, _P0 is the electricity price of photovoltaic power generation sold to the grid (photovoltaic grid parity, the grid-connected electricity price implements the benchmark grid-connected electricity price of coal-fired units), _CRF1 is the conversion factor of the initial investment of the photovoltaic building integration into the equivalent annual value, _C10M is the annual operation and maintenance cost per unit capacity of photovoltaic power generation of the photovoltaic building integration, _C20M is the annual operation and maintenance cost per unit capacity of photovoltaic power generation of the independent roof photovoltaic construction, _C20 is the initial construction cost per unit capacity of the independent roof photovoltaic construction, and _CRF2 is the conversion factor of the initial investment of the independent roof photovoltaic construction into the equivalent annual value;

By comparing the construction cost per unit area of the photovoltaic building integration of the substation with the actual construction cost, the construction method of the substation is determined.

Specifically, the determination of the construction method of the substation building includes: when the actual construction cost is higher than the break-even construction cost, adopting the rooftop photovoltaic independent construction mode; when the actual construction cost is lower than the break-even construction cost, adopting the substation photovoltaic building integrated construction mode.

It should be noted that the information interaction, execution process, etc. between the above-mentioned devices/units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

The embodiment of the present application also provides an electronic device, see FIG8, the electronic device 300 may include: at least one processor 310, a memory 320, and a computer program stored in the memory 320 and executable on the at least one processor 310, the processor 310 implements the steps in any of the above-mentioned method embodiments when executing the computer program, such as steps 101 to 103 in the embodiment shown in FIG1. Alternatively, when the processor 310 executes the computer program, the functions of the modules/units in the above-mentioned device embodiments are implemented, such as the functions of modules 201 to 203 shown in FIG6.

Exemplarily, the computer program may be divided into one or more modules/units, one or more modules/units are stored in the memory 320, and executed by the processor 310 to complete the present application. The one or more modules/units may be a series of computer program segments that can complete specific functions, and the program segments are used to describe the execution process of the computer program in the electronic device 300.

Those skilled in the art will understand that FIG8 is merely an example of an electronic device and does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or a combination of certain components, or different components, such as input and output devices, network access devices, buses, etc.

The processor 310 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

The memory 320 may be an internal storage unit of the electronic device, or an external storage device of the electronic device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. The memory 520 is used to store the computer program and other programs and data required by the electronic device. The memory 520 may also be used to temporarily store data that has been output or is to be output.

The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

The substation building construction method and cost assessment method provided in the embodiments of the present application can be applied to electronic devices such as computers, tablet computers, laptops, netbooks, personal digital assistants (PDAs), and mobile phones. The embodiments of the present application do not impose any restrictions on the specific types of electronic devices.

An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it can implement the steps in each embodiment of the above-mentioned substation building construction method and cost assessment method.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the camera/electronic device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

In the embodiments provided in the present application, it should be understood that the disclosed devices/network equipment and methods can be implemented in other ways. For example, the device/network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims (8)

1. A substation building construction method and cost assessment method, characterized by comprising: Acquire construction parameters of a substation building, wherein the construction method of the substation building includes a photovoltaic building integrated construction method and a rooftop photovoltaic independent construction method; According to the construction parameters of the substation building, the annual net income of the substation building under the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method is calculated; Based on the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, a break-even construction cost model is constructed to determine the construction method of the substation building; The annual net income of the substation building under the photovoltaic building integration construction mode and the rooftop photovoltaic independent construction mode is calculated according to the construction parameters of the substation building, including: pass , calculate the annual net income of the photovoltaic building integrated construction method; pass , calculate the annual net income of the independent rooftop photovoltaic construction method; in, is the annual net income of the photovoltaic building integration,/> The price of electricity sold to the grid for photovoltaic power generation,/> is the annual electricity generation of photovoltaic power generation, /> The total initial investment cost for the photovoltaic building integration construction,/> The conversion factor for converting the initial investment of BIPV into equivalent annual value,/> is the annual maintenance cost of the photovoltaic building integration,/> is the total installed capacity of photovoltaic power generation in the photovoltaic building integration,/> is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration,/> is the initial construction cost per unit capacity of photovoltaic power generation in the photovoltaic building integration,/> The annual operation and maintenance cost per unit capacity of photovoltaic power generation of the photovoltaic building integration; The annual net income of the independent construction of the rooftop photovoltaic system, /> is the annual electricity generation of photovoltaic power generation, /> The total initial investment cost for independent construction of the rooftop photovoltaic system, The conversion factor for converting the initial investment of the independent construction of the rooftop photovoltaic power plant into the equivalent annual value, /> The annual maintenance cost of the independent construction of the rooftop photovoltaic system is: The total installed capacity of photovoltaic power generation independently built for the rooftop photovoltaic power generation,/> The annual utilization hours of the rooftop photovoltaic power generation independently constructed,/> The initial construction cost per unit capacity of the rooftop photovoltaic system is: The annual operation and maintenance cost per unit capacity of photovoltaic power generation independently built for the rooftop photovoltaic power station; The annual net income based on the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method is used to construct a break-even construction cost model to determine the construction method of the substation building, including: According to the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, through , calculate the break-even construction cost of the photovoltaic building integration construction cost; Based on the break-even point, Calculate the construction cost per unit area of the photovoltaic building integration of the substation building; in, is the construction cost per unit area of the photovoltaic building integration under the break-even condition,/> is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration,/> The annual utilization hours of the rooftop photovoltaic power generation independently constructed,/> is the total construction area of photovoltaic panels of the photovoltaic building integration,/> The total construction area of photovoltaic panels independently built for the roof photovoltaic,/> The price of electricity sold to the grid for photovoltaic power generation,/> is the conversion factor for converting the initial investment of the photovoltaic building integration into the equivalent annual value,/> is the annual operation and maintenance cost per unit capacity of photovoltaic power generation in the photovoltaic building integration,/> The annual operation and maintenance cost per unit capacity of the photovoltaic power generation independently built for the rooftop photovoltaic power generation,/> The initial construction cost per unit capacity of the rooftop photovoltaic system is: The conversion factor for converting the initial investment of the independent construction of the rooftop photovoltaic power plant into an equivalent annual value; By comparing the construction cost per unit area of the photovoltaic building integration of the substation with the actual construction cost, the construction method of the substation is determined. 2. The substation building construction method and cost assessment method as described in claim 1 is characterized in that the construction parameters of the substation building include photovoltaic power generation installation area, annual utilization hours, operating life, annual operation and maintenance costs and construction cost level. 3. The substation building construction method and cost assessment method according to claim 1, characterized in that the conversion factor of the initial investment of the photovoltaic building integration is converted into an equivalent annual value by Calculated; in, is the conversion factor for converting the initial investment of the photovoltaic building integration into the equivalent annual value,/> is the discount rate, /> is the total operating life of the photovoltaic building integration. 4. The substation building construction method and cost assessment method according to claim 1, characterized in that the conversion factor of the initial investment of the independent construction of the rooftop photovoltaic power generation into the equivalent annual value is calculated by Calculated; in, The conversion factor for converting the initial investment of independent rooftop photovoltaic construction into equivalent annual value,/> is the discount rate, /> The total operational life of the rooftop photovoltaic system independently constructed. 5. The substation building construction method and cost assessment method according to claim 1, wherein determining the construction method of the substation building comprises: When the actual construction cost is higher than the break-even construction cost, the independent rooftop photovoltaic construction mode is adopted; When the actual construction cost is lower than the break-even construction cost, the substation photovoltaic building integrated construction method is adopted. 6. A substation building construction method assessment device, characterized by comprising: An acquisition module is used to acquire construction parameters of a substation building, wherein the construction method of the substation building includes a photovoltaic building integrated construction method and a rooftop photovoltaic independent construction method; A calculation module, used for calculating the annual net income of the substation building under the photovoltaic building integration construction mode and the roof photovoltaic independent construction mode according to the construction parameters of the substation building; An evaluation module, for constructing a break-even construction cost model based on the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, and determining the construction method of the substation building; The operation module is specifically used for: pass , calculate the annual net income of the photovoltaic building integrated construction method; pass , calculate the annual net income of the independent rooftop photovoltaic construction method; in, is the annual net income of the photovoltaic building integration,/> The price of electricity sold to the grid for photovoltaic power generation,/> is the annual electricity generation of photovoltaic power generation, /> The total initial investment cost for the photovoltaic building integration construction,/> The conversion factor for converting the initial investment of BIPV into equivalent annual value,/> is the annual maintenance cost of the photovoltaic building integration,/> is the total installed capacity of photovoltaic power generation in the photovoltaic building integration,/> is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration,/> is the initial construction cost per unit capacity of photovoltaic power generation in the photovoltaic building integration,/> The annual operation and maintenance cost per unit capacity of photovoltaic power generation of the photovoltaic building integration; The annual net income of the independent construction of the rooftop photovoltaic system, /> is the annual electricity generation of photovoltaic power generation, /> The total initial investment cost for independent construction of the rooftop photovoltaic system, The conversion factor for converting the initial investment of the independent construction of the rooftop photovoltaic power plant into the equivalent annual value, /> The annual maintenance cost of the independent construction of the rooftop photovoltaic system is: The total installed capacity of photovoltaic power generation independently built for the rooftop photovoltaic power generation,/> The annual utilization hours of the rooftop photovoltaic power generation independently constructed,/> The initial construction cost per unit capacity of the rooftop photovoltaic system is: The annual operation and maintenance cost per unit capacity of photovoltaic power generation independently built for the rooftop photovoltaic power station; The evaluation module is specifically used for: According to the annual net income of the photovoltaic building integrated construction method and the rooftop photovoltaic independent construction method, through , calculate the break-even construction cost of the photovoltaic building integration construction cost; Based on the break-even point, Calculate the construction cost per unit area of the photovoltaic building integration of the substation building; in, is the construction cost per unit area of the photovoltaic building integration under the break-even condition,/> is the annual utilization hours of photovoltaic power generation of the photovoltaic building integration,/> The annual utilization hours of the rooftop photovoltaic power generation independently constructed,/> is the total construction area of photovoltaic panels of the photovoltaic building integration,/> The total construction area of photovoltaic panels independently built for the roof photovoltaic,/> The price of electricity sold to the grid for photovoltaic power generation,/> is the conversion factor for converting the initial investment of the photovoltaic building integration into the equivalent annual value,/> is the annual operation and maintenance cost per unit capacity of the photovoltaic power generation of the photovoltaic building integration,/> The annual operation and maintenance cost per unit capacity of the photovoltaic power generation independently built for the rooftop photovoltaic power generation,/> The initial construction cost per unit capacity of the rooftop photovoltaic system is: The conversion factor for converting the initial investment of the independent construction of the rooftop photovoltaic power plant into an equivalent annual value; By comparing the construction cost per unit area of the photovoltaic building integration of the substation with the actual construction cost, the construction method of the substation is determined. 7. An electronic device comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, wherein the processor implements the method according to any one of claims 1 to 5 when calling and executing the computer program. 8. A computer-readable storage medium storing a computer program, wherein the computer program implements the method according to any one of claims 1 to 5 when executed by a processor.