Tesla Gateway 2 on 3P with single phase Tesla Powerwall 2 and single phase SolarEdge Inverter (5kW)
I have recently taken delivery of the following:
Tesla Gateway 2 wired into a three phase installation - Red, White and Blue
Tesla Powerwall 2 wired into the red phase, Essential / Backup Phase
SolarEdge 1phase 5kW inverter, wired into the Essential / Backup / Red phase. A single phase export meter controlling on the supply / red phase
Canadian Solar 12 panel array with optimizers - 4.38kWp
I have noticed the following behavior when the Gateway / PW is set to Self Power with a 15% reserve. Note the grid remains energized throughout the below description. I am assuming the gateway is making all of the following decisions:
The sun comes up and starts to take some of the load on the red phase. Then the solar starts to charge the battery. It would appear that all is well and the battery gains as much as 10 to 15% charge.
Then it would appear that some load appears on the blue and white phase, in addition to the essential / house load on the red phase which has to this point been serviced by the PV, together with the PW charging load. When this happens it would appear that the PW then moves to evacuate power on the red phase equal to that being used on the blue and white phases. I understand this is so called “battery self consumption across all three phases”, a feature of the Gateway / PW combination.
However when the PW is in the mode of “Battery self consumption across all three phases”, the SolarEdge Inverter sees power being exported at the grid supply meter, assumes that power is being exported and appears to stop the PV. Certainly until the PW stopped exporting and starts charging again or is discharged back down to the reserve level, it will not reinstate the PV.
Has anyone seen this behavior before? Is the SolarEdge meter in the incorrect place and as such when the Gateway instructs the PW to utilize “battery self consumption across all three phases”, is it thinking there is no load and hence backs the PV out? What am I missing or not interpreting correctly? I would expect the PV to work whenever it sees a load, either from the PW or from the Red phase? I am looking for the PV to be used extensively to charge the PW during the day, and to meet the red phase load, but due to the self consumption on other phases the PV is backed off.
My installer confirms all is setup correctly. Please help?
I have recently taken delivery of the following:
Tesla Gateway 2 wired into a three phase installation - Red, White and Blue
Tesla Powerwall 2 wired into the red phase, Essential / Backup Phase
SolarEdge 1phase 5kW inverter, wired into the Essential / Backup / Red phase. A single phase export meter controlling on the supply / red phase
Canadian Solar 12 panel array with optimizers - 4.38kWp
I have noticed the following behavior when the Gateway / PW is set to Self Power with a 15% reserve. Note the grid remains energized throughout the below description. I am assuming the gateway is making all of the following decisions:
The sun comes up and starts to take some of the load on the red phase. Then the solar starts to charge the battery. It would appear that all is well and the battery gains as much as 10 to 15% charge.
Then it would appear that some load appears on the blue and white phase, in addition to the essential / house load on the red phase which has to this point been serviced by the PV, together with the PW charging load. When this happens it would appear that the PW then moves to evacuate power on the red phase equal to that being used on the blue and white phases. I understand this is so called “battery self consumption across all three phases”, a feature of the Gateway / PW combination.
However when the PW is in the mode of “Battery self consumption across all three phases”, the SolarEdge Inverter sees power being exported at the grid supply meter, assumes that power is being exported and appears to stop the PV. Certainly until the PW stopped exporting and starts charging again or is discharged back down to the reserve level, it will not reinstate the PV.
Has anyone seen this behavior before? Is the SolarEdge meter in the incorrect place and as such when the Gateway instructs the PW to utilize “battery self consumption across all three phases”, is it thinking there is no load and hence backs the PV out? What am I missing or not interpreting correctly? I would expect the PV to work whenever it sees a load, either from the PW or from the Red phase? I am looking for the PV to be used extensively to charge the PW during the day, and to meet the red phase load, but due to the self consumption on other phases the PV is backed off.
My installer confirms all is setup correctly. Please help?
