Individual self sufficiency is a bad solution. It's hard to scale to the point everyone can afford it, and it means risks like your inverter breaking down turn catastrophic so you need to invest in extra backups. You lose a lot of efficiency and flexibility.

I think it's way better to make a community grid. That means your home might only have solar without a storage system because there's a shared battery down the road, using cheaper but more dangerous chemistry you don't want in your home. You pay a small share of maintenance costs and pay off investments you helped decide because it's a co-op. And if that's not enough you can exchange with another neighborhood.

Basically I'm saying power should work like the internet. Independent systems that don't need to be self sufficient, but they're still resistant to failure because there is no centralized control.

> I think it's way better to make a community grid.

Indeed, like Internet, autonomous networks with connections.

US subdivisions can be a micro grid, a few hundred homes.

There are a lot of condo communities, the common elements (roof, etc) are the HOA responsibility. These can do community solar and grid.

In the metros of third world countries, there is a huge growth of gated communities with high rises. These can be net zero with their own production and grid.

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