Wind Power Network News: In recent years, the price of wind power has been declining. Sometimes, the benefits of retrofitting old wind farms are higher than building new ones. For a wind farm, major technological transformation is the displacement and replacement of units, which is often caused by mistakes in the early site selection. At this time, reducing operating costs and improving control strategies can no longer make the project profitable. It is possible to bring the project back to life only when the machine is moved within the scope. What is the benefit of the project? Xiaobian gives an example today.
1. Basic situation of the project
A wind farm has an installed capacity of 49.5MW, with 33 1.5MW wind turbines installed, and has been put into operation since 2015. The number of valid hours in the whole year of 2015 is 1300h. The unreasonable arrangement of fans in this wind farm is the main reason for the low power generation of this wind farm. After analyzing local wind resources, terrain and other factors, it was finally decided to move 5 of the 33 wind turbines.
The relocation project mainly includes: fan and box transformer disassembly and assembly engineering and civil engineering, power collection line engineering, and procurement of the basic ring.
Second, the investment situation of the relocation
The relocation project is 18 million yuan.
3. The increase in project benefits
The wind farm was connected to the grid for power generation in 2015. This project is a relocation plan and is not a new project. During the operation period, the on-grid electricity price will be 0.5214 yuan/kW?h without VAT, and 0.6100 yuan including VAT. /kW?h for calculation.
The main known conditions of the project:
Increased investment in relocation (5 units): 18 million yuan
Increased full hair hours after relocation (five units): 1100h
After understanding the basic situation of the project, we must first determine whether the project needs to be relocated, that is, whether the relocation is to make up for the loss or expand the loss. At this time, we will more intuitively reflect the effect of the relocation by considering the economics of the five fans to be relocated. When we don’t know the actual investment of the project, we can compare the relocation and non-relocation as two projects to get the best solution. Then we can use the incremental internal rate of return to judge.
Our financial indicators are as follows:
Financial net present value of incremental project investment (after income tax): 17.3671 million yuan
Incremental capital financial internal rate of return: 206%
Financial net present value of incremental capital: 19.9 million yuan,
Post time: Oct-25-2021
