O I read it, it’s just clear you don’t understand the topic at all. Which makes picking just a few things to correct hard.
Ex: “you need to minimize fluctuations on power going through your transmission line.” That sounds reasonable, yes you need to maintain grid frequency etc, but it’s got almost nothing to do with transmission lines. Further there is equipment to deal with various transitory issues that is much cheaper than a giant battery + required equipment to connect those batteries to the electric grid.