wiltoking
Member
The installers will choose the shortest path. At least that’s what they told me. The hey will ask you about a couple of different routes to run the Conduit. I chose to use less conduit. So they changed my panel layout a little. They do a pretty good job of hiding it. Painting it would also be the best choice.
I believe they tap in between your Meter. Before it gets to your breaker panel for whole home. I opened a terminal pull box. That is located out side. To see what was in it. It had ground and 2 /110’s. I thought they would tap in at the main breaker panel. They didn’t. They did it before it gets to the breaker. At least for my whole home backup.
I've seen them do both on pictures in r/TeslaSolar but it depends on the state / local codes. My house was built with a spare conduit from the attic to the Load Panel for future solar installations. The Site Surveyor said they wouldn't use it but this seems the easiest for the installers. Ideally, they'd punch through the roof somewhere, go down this conduit and have the Gateway / AC Disconnect inside the garage (or on the wall outside of it) next to the Powerwall and tap into the Main Panel like you said. This would be catty-corner to the Power Meter which CenterPoint technically allows:
The Tesla design only states the first part of "within 10 feet of CNP meter" though. Which again makes them run conduit all around the house if the PV Solar drop uses the pre-installed conduit to the Garage since that's where the Powerwall is.