The experiment has already been run, under optimal conditions, and it failed.
The island of El Hierro, in the Spanish Canary Islands (as Spanish as Hawaii is American) has an abundance of:
1. Steady wind.
2. Full solar (latitude and weather)
3. “Gravity lakes” for pumping water uphill during peak wind/solar, and “harvesting” hydro energy by gravity off-peak.
There was probably no first-world, technological spot on the plant as perfect for a “sustainable green energy” experiment.
It failed. El Hierro still needs to import hydrocarbons. With literally everything going for it, max wind and solar, it could not run independently. El Hierro was probably as close to a perfect closed system experiment as we will ever find.
https://inhabitat.com/el-hierro-the-worlds-first-renewable-energy-island-or-is-it/
At the top of the atmosphere. At the equator. At midday.
It gets worse from there ...
Some of the "renewables" crowd just don't get that.
They're the stupid ones.
Their leaders are perfectly well aware ... and that's the plan. They want us jammed into urban tenements, owning nothing and being miserable. Or just dead ...
They're the evil ones.
Excellent example. I forgot about that.