Your contention that renewable energy creates a lot less long term jobs than the existing fossil-fuel energy system would appear to be based on us reduplicating the same kind of concentrated for-profit ("capitalist") system which we are fighting with today, in the future.
There *is* no reason why this should be attempted or done, other than to reward those who already hold all the capital. One of the many appeals of renewable energy has been precisely the opportunity to find a far more socially just and democratic way to produce such power.
For some reason people think that there exactly two ways of doing things: either we allow a small number of mega-corporations to utterly dictate the fate of the planet,as is currently the she situation, or we make a system where everything is up to the individual, or individual families, thus putting even more pressure on individuals and the choices that they make, which routinely ends in pitting us as individuals against one another in zero sum competition. Neither of these approaches are viable going forward.
Until we construct a "we"(BTW. the same "we", as in "we the people") that has a vested interest in pursuing renewable energy on a per-community basis, and this on a national scale and ultimately international scale, our efforts will be futile and doomed to fail. No amount of enlightened individual choice is ever going to create a sustainable future. And the notion that mega-corporations are going to do so belies the fact that the intractable problems we are facing today are a product of exactly said system.
The nineteenth century in America saw the creation of municipal energy and water corporations, on a per community basis, with the progressive-era notion of public utilities, which was, and is a novelty in the world. And even though we have been systematically destroying this progressive-era tradition in the last 2-3 generations by privatizing public property and selling them off to private corporations, there is little reason that such cannot serve as a basis, again, going forward.
Likewise there is no reason that worker cooperatives could not form the basis for the production and installation/maintenance of such public infrastructure. Such a path could create far more jobs, long term, than our existing system ever has. And the real job losses which we are now contending with are not primarily the jobs of those currently working in power plants but rather coal miners and the entire coal-production chain.
The writing has been on the wall since before I was (1969). The fact that we are still not dealing with this 50+ years late is mind boggling. Although there has been much talk in the past 50 years about transitioning away from coal, virtually nothing has been done in terms of offering those in the coal industry opportunities for retraining and compensation and finally ending the coal energy production system. And it is not the case that we are talking about massive numbers of people here: are there even 50,000 coal mining/production jobs even left in America? It would appear our strategy has been simply to let the coal workers die off and the problem would take care of itself by simple attrition. How friggin cynical. as a society, can we be?
With relatively minor changes to existing building codes we could transform energy production to a renewable future in a matter of decades. in fact if we had simply started taking these steps when I was born, the transition would have already been done. But alas, our politicians have been engaging in an a epic scale circle jerk for 30+ years talking about creating carbon taxes to let the "free market" solve all of our problems.
If what I am proposing were pursued we would be creating *millions* of a jobs, long-term, going forward. Numbers that dwarf the entire energy production distribution system currently in place, and not only that, these job would be better, more highly skilled jobs. And where do I get such numbers? Simply imagine us installing solar on 50%+ of our current housing/commercial/industrial stock -think of how many people would be required to build, install and maintain such. When you then add the work necessary to upgrade our grid, store excess energy production(lithium batteries etc.), and move our electrical grid infrastructure underground, as is the case in most of the rest of the civilized world, is there any question left as to how many jobs would be created for such?.