this post was submitted on 17 Jan 2025
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LIthium Iron Phosphate is cheapest relatively dense battery type. Sodium ion will be if lithium get expensive.
You can draw an arbitrary line of density you find good enough. But with how much space us wasted in some countries, that line should vary a bit place to place
With 40 foot containers providing utility or smaller scale storage solutions of 2.9mwh per container with LFP batteries, that is about 170mwh per acre. Before stacking. I don't believe a lack of density matters anywhere in the world. Spare space inside buildings is usually sufficient for building needs.
A lack of density definitely matters in some places. I've been to a bunch of countries now, some have plenty of space, some really don't