> For non-hydro renewable to be self-sufficient, you need [8-25 days] of storage. If you're adamant on generation following load, low transport, probably no ov

> For non-hydro renewable to be self-sufficient, you need [8-25 days] of storage. If you're adamant on generation following load, low transport, probably no overgeneration, no hydro and absolutely no backup biomass, gas or similar, then yes, you probably need 25 days of storage. It would be good to have at least a couple of days or weeks of energy buffer in the world's supply chain, but that can take many forms. Electricity and lithium batteries seem a bad choice for the bulk of it.