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Helmut10001yesterday at 5:15 AM2 repliesview on HN

I found out I can automate my 5,12kWh house battery through local-only RS485 connection, and directly setting registers using ModbusTCP from Home Assistant. I then drafted an automation with hysteresis and damping that tries to aim for Net-Zero export/import (pv surplus/grid). It appears to work!


Replies

isoprophlexyesterday at 5:42 AM

What brand/make of battery is that? I'm tentatively interested in home battery storage, but definitely not interested in shit that requires an app, an internet connection, and shitty saas spyware...

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Gibbon1yesterday at 5:23 AM

The deranged thing about RS485 and modbus is it's old cheap and just works.