Smart Solar Charging

[skiingj]

I've been able to connect my Emporia charger to an Emporia energy monitor so that it senses when my solar array begins dumping excess energy back to the grid, and turns on the charger.

I have 36 panels and three Tesla Powerwalls, which seem to work fine with the Emporia charger. My only workaround is that when I'm charging EVs at night, I have to switch my Tesla app mode to "Time-based Control" rather than "Self-Powered". If I leave it on Self-Powered, the system will drain my Powerwalls to charge the EVs, at least down to the minimum backup reserve I've set. If I don't want that to happen, I switch the Tesla mode to "Time-based control" so that my EVs can charge from the grid during off-peak hours instead.

Once your Powerwalls have charged to 100%, your Emporia charger and energy monitor should have no problem sensing excess solar energy production and activating the EV charger to send that solar power to your cars rather than to the grid.

I had a Mach-E at the time and now a GV60P. Since the GV60P comes with EA I rarely charge at home. With my setup it just would not work and they knew there was an issue. Earlier in this form another members does get his to work as designed but has a different setup. I think it was something to do with a breaker panel and how the Powerwall's were wired in.

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