That's a great video, and I think it's important to point out to the other jackass in this thread that the issue is relevant to Germany because most of that country is north of fucking Saskatoon while this article is about Georgia which is at the same latitude as Iraq.

That video is missing demand response enabling sector coupling.

Take green steel using hydrogen as a chemical feedstock. Oversize the electrolyzers and add some storage and the plant is now able to utilize low prices and leave the firm 10% to more important consumers, while enabling more producers to exist.

This without paying the round-trip cost.

Almost all studies looking into 100% renewable systems finds them easily possible globally but a holistic approach is required. Simply shifting the current electricity sector to renewables won't cut it.

https://en.wikipedia.org/wiki/100%25_renewable_energy