Damn, those li-ion sure seem like a bad long-term solution. Very convenient that you use lifepo4 for at-home battery storage, and either lifepo4 or possibly sodium for grid scale.

Inverters aren’t a problem. China produces roughly half of them worldwide iirc. They’re dominant but you can source from elsewhere without an issue.

LiFePO4 is almost purely China, but those will last you 20 years, which is roughly 365 times as long as if you’re cut off from oil.

There are many battery chemistries, LiFePO4 is but one .. the lithium batteries tend to be lighter in weight and more optimal for cars and mobility.

Grid storage has yet to find the cheapest storage per acre regardless of weight (which doesn't matter if they're not going to move) and solar -> thermal (underground) -> electricity (months later) is still being trialled (sort of, there's been decades of such usage at one site (IIRC)).

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