Btw, Vietnam has shown what is possible with solar, though they didn't put in hydrogen backup, they got to about 8 times their grid capacity in only around 18 months. The secret is to do it by communities, then with hydrogen backup and excess hydrogen in all places going to transport, all is fixed, with even drinking water and food ("solein") thrown in as bonuses.
If that isn't a god-sign from nature telling us what to do, I don't know what is :)