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I'm looking at ditching my Wallbox charging and moving to OpenEVSE, but before I do that I'm looking to improve safety whilst solar charging and overnight during free power charging whereby I vary the charger rate to avoid over drawing the house main 63A circuit breaker - NZ&nbsp;230V.<br><br>The failures that I'm looking to avoid are:<br><ul><li>Node-RED failure</li><li>Home Assistant failure</li><li>Wi-Fi failure</li></ul><div><br></div><div>Today, I'm driving the Wallbox using OCPP 1.6J with a TX Profile that expires that I re send to the charger with the charging rate I require and a TxDefaultProfile that does not expire with a maximum charge rate of 6 Amps that sits underneath. In this way, if something goes wrong, the TxProfile expires and the charger falls back to a safe low charge rate of 6 Amps. Not that Home Assistant crashes or Node-RED or Wi-Fi goes off, I'm just designing properly for "what if".<br><br>I guess I could just buy OpenEVSE and drive it using OCPP but I am hoping for a more efficient and lightweight solution like MQTT etc that OpenEVSE supports. I'm also looking forward to privacy and not sending any telemetry to a cloud provider and no possibility of a remote cloud hack.<br><br>Thoughts anyone?</div><br><p>&nbsp;</p>

Sure, local only, no cloud, but what about the concept of a safety profile so if Home Assistant or Wi-Fi go offline the charger doesn't just remain charging at a high current and thereby overdraw the house or import power during solar charging? 

Nice!

That's the answer. I see I can feed it my power meter because in my case the main switchboard with a power meter that reports to Home Assistant is in the main house a long way away from the detached garage and for Wallbox that is a big problem, it needs a locally wired meter and I just can't do that.

Thanks for your help - OpenEVSE can clearly do what I want.