I hate to say it, but if energy prices keep rising this perspective is going to be disposed of rapidly. High energy prices mean rampant inflation and social unrest. With crude and natural gas prices skyrocketing, developing nations will again turn to coal as an energy source. Developed nations will return (see Germany) to coal as a heating source. Green energy will be thrown to the wayside for the sake of social stab…
Why would the world turn to a more expensive fuel source? Even in Germany, coal is more expensive than wind and mostly more expensive than PV: https://www.ise.fraunhofer.de/en/publications/studies/cost-o...
In that study you see there is overlap between coal and PV systems and batteries.