2 ms·

One key number missed out is: > its round-trip efficiency is under 50%, in contrast to lithium-ion's 85% edit: the comments on the article suggests under 50 m

One key number missed out is: > its round-trip efficiency is under 50%, in contrast to lithium-ion's 85% edit: the comments on the article suggests under 50 means 35% in this specific case. So if you have both on a grid you want to fill the lithium batteries first and drain them first.

toomuchtodo 2y ago
> At full production, the modules will produce electricity for one-tenth the cost of any technology available today for grid storage. So depending on your local grid clean energy and curtailment metrics, this is likely a superior short term option until further lithium and sodium BESS cost declines, continued rapid phase out of fossil generation systems, and deployment of renewables towards overbuild scenarios to approach/reach net zero.