You’re basically right. Like I wrote in a comment above, although wind power generation makes sense at small scale, at large scale it is not appropriate. I do my generation at home as DC so I can store it in a battery bank, but that is not practical for large scale.
Same thing is true of photovoltaic... Works great small scale, but makes no sense at large scale. Where is the storage for night time? Etc. etc.
Is there a method of unifying a storage/DC inverter/AC generator bank that would be reliable? I remember back in the day, I was an armed guard for the DOJ. Their main computer center had an old-style UPS that consisted of banks of lead-acid Exide batteries buffering the feed from the main grid, but it only held enough of a charge to take the mainframe down properly. Maybe 15 minutes, like an APC UPS wold do for a local server nowadays. I'd think that somehow, on a small scale at least, there would be a way to wire multiple parallel banks so that they maintain the same voltage feed over a longer period of time......
"As democracy is perfected, the office represents, more and more closely, the inner soul of the people. We move toward a lofty ideal. On some great and glorious day the plain folks of the land will reach their hearts desire at last, and the White House will be adorned by a downright moron."
--H.L. Mencken, The Baltimore Evening Sun, July 26, 1920