[Robaroni]

“Total Usage” = total amount of energy you’re consuming.

“Total Production” is your total usage plus how much your PV system is covering it, if it’s green then your producing more than you’re using, if it’s blue that’s how much you’re buying.

“Balance” is the sum of the breakers that are not being monitored.

In my case I have a critical sub panel fed by my PV and inverter, breakers in the sub are monitored but not the main sub breaker coming from the inverter which would confuse the system.

[Robaroni]

My EV isn’t on my critical load sub panel.

What happens is that excess PV is sent to the grid, when the Emporia senses PV selling (two bidirectional CT’s on the main breaker) it charges my EV. The excess PV generation shows up on my app as “balance” because I only monitor individual breakers on the sub panel not the main breaker from my inverter, which the Emporia can’t do if you have CT’s on the breakers in that panel because they would conflict with the sub main breaker.

As a note, there are no CT’s on the sub main breaker as Emporia breaker CT’s aren’t directional yet, although I see resistors on the CT’s for phase detection so I expect this will be a future firmware update.

So basically you might try putting your EV breaker on the main panel that isn’t supplied by the PV with a CT on it.

[Robaroni]

Isn’t that wrong? Adjacent breakers flip to the other phase.

[Robaroni]

Hello everyone,

Just installed a Vue 2, EVSE and two/four smart plugs. Still getting used to everything but I like the system and thank Emporia for all the help!

I’m a retired electronic engineer but I still do some embedded programming and circuit design work.

I have two PV systems, a SolarEdge 6.4kW and an Outback with ~9kW and 15kWh of battery backup.

I drive a 2023 Chevy Bolt EUV Premier, I’ve been driving Bolts for ~seven years now.

My other hobbies are machining, clock and watch making, woodworking and cooking with my wife. I maintain two large E. Howard tower clocks in my area.

[Author]

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