Even if the production could be sped up, the transport of the things involves complex logistics to get them where they are needed because of the weight. You can

Even if the production could be sped up, the transport of the things involves complex logistics to get them where they are needed because of the weight. You can get a taste of that by searching for transformer heavy transport by ABB or something like that on youtube. Actually you can partially 'reverse engineer' the state of the grid by doing that :-) At least in Europe, or Germany. The involved parties, be it manufacturers, or logistic companies, or rail nerds have put it all on youtube. Anyways, just transport from factory to destination usually takes weeks. Even if only a few 100 kilometers.