Suddenly started charging batteries!
I noticed my 12kW 3-Phase inverter was charging the batteries from the grid in the middle of the day, costing me a fortune... went to investigate and found that the inverter time had changed and it thought it was cheap rate in the middle of the night.
Only notices as the smart meter was showing a huge daily cost.
System is also showing as currently offline on the Sunsync app, so it might be indicative of a server problem. System all looks good on the directly connected Home Assistant.
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Just to ad my Essential consumer unit supply went off for about 15 min while they did the upgrade and there was no battery back up as it was not a grid outage