You are still forgetting an important point. The infrastructure also has to be expanded. That means, if more people start installing photovoltaic systems now, it must be ensured that they can also feed in energy and not have to reduce their feed-in amount because the lines can’t "handle" it.
I agree with you, expansion is absolutely necessary. Additionally, I assume that through bidirectional charging and home storage, peak loads can be buffered in the future. I can well imagine that in a few years, when the first electric cars are retired, a secondary market for used car batteries will emerge, which will then be used as home storage.
That sounds more like a slogan of endurance to me, because your idea sounds pretty naive. If the Chinese and Indians knew about this... ;-) The demand for energy sources will not be less, only if the Germans give up on it
A change of mindset will also take place in these countries in the coming years. Anyone who has been to Mumbai knows how high the pollutant levels are in the air there and what health damage this causes to the working-age population. There are still enough people coming from the villages as laborers...
And here we come to the next point. Are these economies so strong that they can live entirely from the domestic market, or are they dependent on exports? If the second point is true, then they will adjust their production conditions in the coming years. Customers outside these markets are increasingly placing emphasis on sustainability. Companies that do not keep up will sooner or later experience sales problems.
Oil producers like the UAE share this opinion and have been transforming their economy for about two decades to become independent of the oil trade. At the same time, large projects are being implemented to reduce the CO2 footprint and become climate neutral. They certainly are not doing this for fun or frivolity or because, according to media reports, their oil reserves have supposedly been consistently depleted for about 40 years. Strange that this number has remained constant for years...
One more thing about renewable energies: Europe’s oldest large-scale photovoltaic system is located in Tessin and was installed there in 1982. It still generates electricity and retains 80% of its original performance. A modern photovoltaic module in our latitudes recovers the amount of energy required for its production after about 1 1/2 years. Once built, it still produces a good amount of electricity after 40 years without tons of oil/gas having to be transported over thousands of kilometers by pipelines/ships/trucks and then being burned with poor efficiency.
Name me a reason why it should be more sensible to transport an energy source like oil or gas over thousands of kilometers and then burn it with poor efficiency instead of producing the required amount of energy directly on-site.