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Not sure why the prices are so much higher when compared to EV batteries, but now that Na-ion batteries are in production we should see a significant reduction
by UncleOxidant 3y ago
Not sure why the prices are so much higher when compared to EV batteries, but now that Na-ion batteries are in production we should see a significant reduction in prices for house backup battery systems over the next few years - 1/2 to 1/3 the cost of Li-ion. And while Na-ion has less energy density it's probably better suited for home power backup (less likely to catch fire, works better in low temps, for example) where you don't care about the extra weight.
- anonuser123456 3y agoSodium ion batteries don't have the same longevity as LFP in their current form (2-3k cycles vs 4-8k cycles), so they are not really an economical replacement at this point.
- deleted 3y ago[deleted]
- UncleOxidant 3y agoWouldn't batteries used in a home power backup situation be rarely cycling? (unless you completely go off grid as the earlier poster was suggesting)
- maineldc 3y agoIf the battery is being used to address the duck curve, it cycles approximately every day.
- patientzero 3y agoIf you can buy twice the capacity for the same price a cell cycles every second day, except on the rare days where you would have had a problem with the old solution.