This is silly. Solar fields are cheap and easily replaced. The grid already has enormous single points of failure that are actually hard to replace - they are called substations.
But as we refine and revise power delivery to our communities, why then do we want to emulate the substation model?
Tiny deployments of off-grid solar beat the pants off that model.
Sure, for individuals or pairs roaming about in an RV, small homesteaders, etc.
How many tiny off-grid solar deployments are required to power the people and industries of a small city of two million?
Many acres of grain are required to feed such a city, why not many fields of solar panels, community batteries (roughly one per 1-2 hundred houses), smart grids, etc.
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