I don't have any links to studies - I'm relying on the idea that renewable sources can contribute significantly to the overall energy requirements.

When you take into account the amount of energy required to grow food, refrigerate it, ship it halfway around the world, and distribute it to stores, surely the amount of energy required to grow food locally is inconsequential.

The crop yields from climate controlled agriculture can be inferred a bit from the results that are coming in from Japan. This is not economical in rural regions like much of the US only (IMO) because locals make so little capital. But if we treat it a lot like subsistence farming and communities pool together capital to start indoor farms, this could help.

My skepticism is mostly around not the economics but the sheer accumulation of desperation in these small communities creating high corruption and theft rates ruining the efficacy of the concept.