I already have PV solar connected to my powerwall system. However I want to add more panels. I understand gateway measures PV using CTs (current transformers). I am not sure if I can install additional CTs for the new solar array. Will the gateway be able to measure two lines of PV solar?
woferry
Member
If you're adding an additional inverter for the new panels, the easiest thing would be to simply add the new inverter to the existing solar CTs. That should be easy if the inverter AC wiring all runs through a common point. If they don't then things could be much trickier I'd suspect.
My original Tesla install has 2 5.2kW inverters, and both run through the same solar CT pair for the Gateway to measure the total solar power. My inverters do not feed into the same panel (one is in the backup loads panel and the other in the original service panel), but they run through the same conduit, so the CTs can monitor both as the inverter wires run to their appropriate electrical panels.
My original Tesla install has 2 5.2kW inverters, and both run through the same solar CT pair for the Gateway to measure the total solar power. My inverters do not feed into the same panel (one is in the backup loads panel and the other in the original service panel), but they run through the same conduit, so the CTs can monitor both as the inverter wires run to their appropriate electrical panels.
Vines
Active Member
CT's often have room to run a second wire through them, that may be an option as well. Y splitters are also available for the CT's
