Hi there...., including the original prompt of this diagram is a must, as to know that you are being measured how good your paraphrased sentence in the opening paragraph is.
There are two diagrams below which show the mechanism from a wind turbine to produce electrical energy for humans.
The diagram shows how a wind turbine is built for electrical energy purposes.
Overall, those are noticeable that first graph is the process of a wind turbine
What stands out from the first graph is that the process of a wind turbine needs some advanced steps.
then in the second stage is the optimal location to generate electricity.
While the latter one tells us some potential locations of such a generator as to produce more results.
Once you finish presenting a very good intro, then I will cogitate about the body paragraphs. I want you to focus on how to develop good sentences. Therefore, I suggest reading sample answer as many as you can. This helps you improve your vocabularies, sentence structure and ideas related to IELTS topics. A heap of luck :D