My home usage is consistently different between Emporia vue on my circuit breaker panel vs what tesla reports. Average Emporia use is about 70 kWh per day and from tesla is about 80 kWh. Utility seems to more closely match tesla, but it's hard to tell because of net metering.
On an instantaneous basis, it's common for emporia to show 2kW of power use mid day, and tesla to show 3kW at the same time. That's mid day baseline without ac running and with high solar production.
Our solar system is 18kW with 12.6kW of inverters and two powerwalls.
Are the inverters or some other solar component somehow using 1kW mid day? Could difference be because of voltage irregularity from the mains? Like maybe actual mains voltage is 250V while solar is producing but Emporia assumes 220, so there's higher wattage than Emporia can see?
Any ideas? Mostly I want to discover if there's actually 1 kW of phantom power usage somehow.
On an instantaneous basis, it's common for emporia to show 2kW of power use mid day, and tesla to show 3kW at the same time. That's mid day baseline without ac running and with high solar production.
Our solar system is 18kW with 12.6kW of inverters and two powerwalls.
Are the inverters or some other solar component somehow using 1kW mid day? Could difference be because of voltage irregularity from the mains? Like maybe actual mains voltage is 250V while solar is producing but Emporia assumes 220, so there's higher wattage than Emporia can see?
Any ideas? Mostly I want to discover if there's actually 1 kW of phantom power usage somehow.