miimura
Well-Known Member
When my system was first installed, the Grid CTs were factory placed on the Gateway's switch. The system was oblivious to the large loads that were still located in the main panel. At first, I was not concerned because I never wanted the cars to charge from Powerwall stored energy anyway and that was before TBC was deployed. However, I am still planning to install one of the A/C compressors that was pre-plumbed and wired when the house was built 6 years ago. That usage definitely needs to be powered from the Powerwalls. So, I talked to the installer and they extended the wires from the Gateway's Neurio back into the main panel and placed the CTs on the conductors between the main breaker and the main panel bus. So, now it measures everything going to/from the meter.So you have your Gateway CTs in your main panel. Does the house load still go thorough the Gateway transfer switch? How much of what you showed do you have? And why did you install it that way?
The following loads are in my main panel and are not backed up.
- 50A EVSE - Leviton J1772
- 50A 14-50 Outlet - Tesla Gen2 Mobile Connector
- 50A range outlet (not used)
- 40A A/C #1 (not used)
- 40A A/C #2 (not used)
- 30A Clothes Dryer (not used)
120V circuits
- 20A Tile floor heater - Laundry room
- 20A Tile floor heater - Bath #2
- 20A Generator battery charge & grid sense (not used)
These loads were originally in the main panel but were moved to the Generation Panel so that they would be backed up.
- 20A Bathroom GFI
- 20A Laundry Room outlets
- 20A Bedroom #3 outlets (AFCI)
The two 20A 240V solar circuits were also relocated to the Generation Panel.
Everything else in my house was on a subpanel in the laundry room. That 125A breaker now goes to the Gateway, through the Gateway switch, and back to the main panel where it's connected to the wires that used to go in the 125A breaker to feed the subpanel.