Hello all,
I've had my Powerwall 2 for a few days now, and I've noticed that even when the house is set to run off the battery (which is all day from 05:30 onwards), my utility smart meter shows a constant export to the grid of 100-130W. If I "go off-grid", then this disappears to 9W which is just calibration and inaccuracy. However 120W (the average I see) is a problem in my eyes, because over the period of the daytime hours, it could export up to 2kWh, which I don't get paid for and then have to charge up again - or worse, the battery depletes before the end of the peak rate and I have to pay full rate when it should still be using the battery!
Any ideas? Do others see the same thing? I realise that in order for the battery/inverter to power the house, it needs to put out a slightly higher voltage than the mains input, but this seems excessive. I'm wondering if it's to do with cable run length to the CT clamp, which is about 20m...
Thanks
Richard
I've had my Powerwall 2 for a few days now, and I've noticed that even when the house is set to run off the battery (which is all day from 05:30 onwards), my utility smart meter shows a constant export to the grid of 100-130W. If I "go off-grid", then this disappears to 9W which is just calibration and inaccuracy. However 120W (the average I see) is a problem in my eyes, because over the period of the daytime hours, it could export up to 2kWh, which I don't get paid for and then have to charge up again - or worse, the battery depletes before the end of the peak rate and I have to pay full rate when it should still be using the battery!
Any ideas? Do others see the same thing? I realise that in order for the battery/inverter to power the house, it needs to put out a slightly higher voltage than the mains input, but this seems excessive. I'm wondering if it's to do with cable run length to the CT clamp, which is about 20m...
Thanks
Richard