I see an issue with all of this, and it is the bottleneck that is storage/infrastructure
You cannot expect all of the solar energy storage to be serviced by batteries, because those degrade if they hold energy for too long
The solution to this is intercontinental HVDC lines, and a bit of hydrogen too
The hydrogen for storage is very easy, even tho it's a tricky material, we can manage it for unexpected solar dips
However intercontinental HVDC, which are VERY needed once we start to use more than half of our energy needs from solar, require INTERNATIONAL cooperation, and a lot of commitment from many countries
I don't know if the international geopolitical scene is prepared for such a project, and I think this will delay solar adoption in your timeline after 2030ish
I see an issue with all of this, and it is the bottleneck that is storage/infrastructure
You cannot expect all of the solar energy storage to be serviced by batteries, because those degrade if they hold energy for too long
The solution to this is intercontinental HVDC lines, and a bit of hydrogen too
The hydrogen for storage is very easy, even tho it's a tricky material, we can manage it for unexpected solar dips
However intercontinental HVDC, which are VERY needed once we start to use more than half of our energy needs from solar, require INTERNATIONAL cooperation, and a lot of commitment from many countries
I don't know if the international geopolitical scene is prepared for such a project, and I think this will delay solar adoption in your timeline after 2030ish