[snovv_crash]

It reduces volatility, it doesn't eliminate it. There will still be days when the sun and wind aren't out in a large enough fraction of places that there will be a shortage. It is less likely, but it will still happen. Factories can't just shut down, people can't just choose not to charge their cars or boil their kettles if there's a shortage.

[ncmncm]

When generation flags and local storage looks likely to be depleted, utilities will order a shipment of ammonia from any of numerous solar farms in the tropics.

Most of the time a utility will prefer cheaper local generation, local storage, or transmission-line power before spending on shipped-in synthetic fuel.

[snovv_crash]

I have friends who work in industrial refrigeration, and I have to say, transporting ships full of ammonia around the world is a horrific idea.