I suspect sodium is better than lithium today. The win is that sodium is much more forgiving of high temperatures so they can be run without cooling fans/pumps. Lithium battery installations are actually loud owing to all of their cooling infrastructure.

No cooling means the sodium batteries are easier/cheaper to maintain (no mechanical failures). Maybe not as energy dense, but you could still come out ahead long term when accounting for Capex+Opex.

Seems likely. But I can't buy sodium ion today like I can LFP.

The chemistry definitely seems to be better than LFP long term, but higher manufacturing costs and low scale means it's just not as available.

CATL is predicting that they'll hit price parity for sodium against LFP this year, commercial scaling still needs to happen, though.

Meanwhile, manufacturers can pick up prismatic LFP from all sorts of places, at great prices (ex - https://www.18650batterystore.com/collections/lifepo4-prisma...)