alt Hacker Newsit wasn't fully state controlled enterprises in the west - state was a partial owner. For example PreussenElektra, when it built plants was a publicly traded company and during Grohnde state mostly divested from it. Plants not only reached profitability but were cheapest firm power in german merit order bringing huge profits to the owners
According to Wikipedia, PreussenElektra was a subsidiary of VEBA, a state owned energy company. You have to cite your sources here because I don't want to have to rebut made-up stuff.
I do note that you have changed your argument from "plants were built mostly by private sector" to "it wasn't fully state controlled enterprises in the west". Closer to the truth, but still incorrect.