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this post was submitted on 25 May 2024
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48v 100ah battery with Bluetooth BMS built in is around 700$ on ali express... Slightly more direct from Amazon in the USA if you want it fast. Will store close to 5kwh which I guarantee you beats out this solution. Of course you'd still need to buy the grid sync inverter (available in many places) as well as a solar mppt charger and solar cells. Still will come below this cost - or you'll simply blow by the capacity of what you would have paid for this solution. But gotta have the old noggin on straight to do it yourself.
If it was that easy to do it right, you'd have small businesses offering to do it for thousands, instead of the current going rates, which is tens of thousands.
I don't disagree for sure, but at some point the price will become more competitive as other companies see dollar signs...