I'm posting this primarily because EG4 support has been either wrong-entirely (offered a very confident solution in a response that didn't work at all) or unresponsive. For instance, I haven't heard back from them today at all despite an open ticket and my updates.
Newly installed system. Here are the details:
EG4 Flexboss21
EG4 Gridboss
3x EG4 All Weather Wallmount Batteries.
40x 550w Aptos bifacial panels w/Tigo TS4-A-O's.
The grid comes into the gridboss via an eaton 200A breaker main. The backed up loads goes to the house main panel.
As far as I can tell there are no communication issues - and if there were, I'd expect the inverter to detect those and alarm accordingly. The app shows all 3 batteries are detected, all of the battery breakers are ON. The breaker in the inverter for the batteries is ON.
The expected behavior is that during the day when there's plenty of solar, the house is powered by the solar. Any excess is put into the batteries, then sold back to the grid (I have a net metering agreement). At night, the house would be powered by the batteries until they reached a specified SOC, at which point the grid would take over until the sun came back out to power the house/recharge the batteries.
Actual behavior is as such: House is powered primarily from the sun - but often and for no reason it seems to switch to the grid, sometimes cutting power to the whole house, then restoring it and no longer accepting solar input until I switch the disconnect off and on again. It WILL NOT - regardless of the situation - use the batteries as a power source. Even if I turn the grid input off... the house will just go dark. It will sit there and tell you your batteries are fully charged... the batteries will power the inverter enough to show you that it's decided to NOT use it to power your house.
After all of this hard work to get this system installed... I want to get ahead of any buyers remorse. Any help is appreciated. I'll provide configuration options as requested.... but I'm not even sure where to start with that.
--Micah
