Due to the particularity of power grid infrastructure projects, the project construction cost is huge, the service life after completion is long, a lot of resources are needed, and the resources are occupied for a long time, such as land occupation. At present, the power grid infrastructure project is basically a milestone control mode, and the time node and completion and commissioning are controlled and assessed by the superior department (provincial power grid company), so the time of any link should not be too long, otherwise the construction period may be affected. In the whole construction process, not only the main construction stage will affect the project cost, but also many complicated special situations and accidents will have different degrees of impact on the project cost, especially when there is a dispute of interest, which is likely to have a very great impact on the project claim cost.
Power grid infrastructure projects are large-scale, multi-point, wide-ranging, long-term implementation, and consume a lot of people, money and materials. It is necessary to consider various factors such as social benefits and economic benefits after being put into use. If there is a decision-making mistake, it is likely to cause irreparable economic losses. In order to determine the cost reasonably, it is necessary to make multiple evaluations in the whole construction process according to the characteristics of different stages, and determine the cost accuracy of different stages reasonably according to the construction procedures to reflect the rationality of the cost.
Now, with the improvement of the understanding of project cost, we have begun to pay attention to the role of project cost, but milestone control method has put forward higher requirements for project cost, and project cost has been paid more attention in the project decision-making and design stage. Doing the preliminary work well can enhance the strength and depth of scientific research design and planning, give full play to the overall guidance and controllability of estimation, and control the project cost from the source.
Second, the power grid infrastructure construction cost management measures
(A) to strengthen the compensation time control of young crops
The compensation time of young crops is very important for the project with milestone control, and it is also an important factor affecting the construction cost of the project. In order to effectively control the compensation time of young crops, we need to do the following work:
There are many power grid infrastructure projects with a wide area, and the terrain and geological conditions along the line are very different, and the construction area is large. Young crop compensation will involve the vital interests of many people, which will bring great difficulties to young crop compensation, and some "needy households" will slow down the time of young crop compensation. Faced with such a situation, it is necessary to seek truth from facts, rationally use laws and policies to carry out work, complete young crop compensation in the shortest time, and shorten the time for young crop compensation.
(B) Attach importance to contract management
In the process of project construction, all expenses are legally reflected in the contract, and the interests of the construction unit, equipment manufacturer and occupied farmers can be reflected in the contract. Therefore, it is necessary to strengthen contract management, including contract signing, execution and management, which are all important aspects of project cost management of power grid infrastructure projects. Before the construction of power grid infrastructure projects, cost managers need to understand and be familiar with the factors that will affect the project cost, such as drawings, design requirements, bidding documents, etc., understand the possible compensation phenomena in the construction of power grid infrastructure projects, and take corresponding measures to prevent the cost from increasing. Especially for the construction contract signed by the owner and the construction unit, it is necessary to confirm the requirements of various construction activities such as technical standards and construction period to prevent claims. At the same time, we should also pay attention to the compensation contract agreement for young crops in land acquisition, and the content must be verified.
(C) the unity of construction organization design and economic benefits
In the process of construction, we should carefully examine and analyze the bill of quantities, basic unit price and other related documents in the contract, organize technicians and budget personnel to rationally optimize the construction organization design of the construction project, and choose a technically feasible and economically reasonable construction scheme to achieve the effect of unifying the construction organization design and economic benefits. For example, in the power grid infrastructure project, in the construction process, according to the practical experience and technical and economic comparison of the construction, and in view of various factors such as the local actual situation and construction period, the construction unit can propose optimization measures for the construction scheme, and then obtain the approval of the owner and the design unit. These optimization schemes can often achieve the effect of shortening the construction period or solving other problems and saving construction costs. Therefore, in the construction process, it is necessary to optimize the technically feasible and economically reasonable construction organization design, which plays a very important role in cost control in the construction process.
(four) to coordinate the direct relationship between project quality, progress and cost.
The most reasonable cost management in power grid infrastructure construction is to effectively coordinate the relationship among quality, schedule and cost of power grid infrastructure projects. On the premise of ensuring the quality standard of power grid, speed up the progress and control the cost to the maximum extent, and finally realize the cost management of power grid infrastructure projects. Compared with general projects, power grid infrastructure projects have their own particularity, and the cost cannot be reduced through large-scale production. Only by improving the construction technology and adopting good construction management measures can the power grid construction unit obtain the maximum benefit. Faced with this situation, cost personnel need to communicate with owners, supervision units, construction units and occupied farmers during the supervision process, reasonably adjust the project schedule, project cost and the use of various compensation fees, and coordinate the interests of participating units, so as to achieve the best economic and social benefits of power grid infrastructure projects.
(V) Building an early warning mechanism for power grid project cost.
The cost of equipment and materials required for power grid infrastructure construction accounts for most of the cost of the whole construction process, and a good cost change cost early warning mechanism can effectively adjust the influence of equipment and materials market price fluctuation on power grid infrastructure construction cost. Therefore, it is necessary to continuously observe and predict the market price information of equipment and materials and build an information sharing mechanism. In order to realize the information sharing of equipment and material prices in power grid construction related departments, it is necessary to estimate the price and market information provided by the purchasing department when formulating the budget. In terms of cost information, the construction unit must establish a good cooperative relationship with relevant management departments and keep abreast of the relevant cost information of power grid infrastructure construction.
Third, the conclusion
The project cost management of power grid infrastructure projects is closely related to the progress and quality of the whole project. Therefore, we need to attach importance to the project cost management of power grid infrastructure projects, clarify its importance, and improve the project cost management of power grid infrastructure projects through various measures.
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