Panel upgrade

[qdeathstar]

sorry I was not clear..

Tesla permit with LA County says this in subject line----> "Installation of roof-mounted PV, 8.16 kw, 24 modules, 1 (N) 200A Load Center, 1 (N) 225A Distribution panel, 1 (N) 125A Load Center (2) Tesla Powerwall (ESS)"

I am assuming the main panel is the '200A load center' ? I already have the 200A panel but with a lower bus rating than the needed 225A. Is my understanding correct here?

This is rediculous. There are no 225 amp main breaker panels A 225 amp panel is just a 200 amp panel without a main breaker and lugs. It looks like they are installing three panels?

 

[h2ofun]

This is rediculous. There are no 225 amp main breaker panels A 225 amp panel is just a 200 amp panel without a main breaker and lugs. It looks like they are installing three panels?

I have 2 225 amp generator panels in my design. I had never heard of 225, but I guess thats how it gets speced?

 

[CalMdl3]

No problem as long as the gas pipe is behind the footprint of the panel, as your description implies it must be.

Cheers, Wayne

Good news - after 8 months and I don’t know how many calls and emails with Tesla my system is installed, inspected and approved for PTO. In the end all of my equipment was installed inside my garage on the wall behind my exterior main supply panel. As everyone on the site predicted and helped me point out to Tesla- there was no need to upgrade my 200 amp solar ready Square D panel. They simply removed all the breakers and replaced with one new 200 amp breaker. They then drilled 3 2” conduit ways into the back of my main supply panel and pulled the wires through to my new backup panel and the Tesla Gateway. All new equipment is installed in the wall inside the garage. I live in city San Jose and mounted my 3 Powerwalls on the side wall of my garage - no need for bollards or special smoke alarms.
Had two Tesla crews- second electrician had to redo all the work of the first but he did a better job. I asked for a map of the panels but first crew left with it and it disappeared. The inspection went well other than the inspector required them to remove the power walls to confirm they were attached to studs. The Tesla inspection coordinator said he would take care of filing necessary paperwork for PTO. Well after hearing nothing for 4 weeks I called and once again turned out Tesla had not turned in the pge form- got that filed and the got PTO 3 weeks later. So wasted 4 weeks which seems to be the typical Tesla install experience on this forum and in my neighborhood. I met some really great Tesla employees in the process but the overall process and incompetence required full time project management in my case.
Thanks to everyone on this forum that provided their knowledge and wisdom. Without I could have never gotten here.
Cheers!

 

[wwhitney]

Looks good.

A minor point that may have been taken care of later, but was not in the photos posted: the conduits that go through the wall from the outdoor panel to the indoor panel need to be air blocked. There's an electrical product called duct seal that is made for this, it's like clay or putty. Without air blocking, there is the possibility of condensation as, say, moister air from the inside hits colder air from the outside. So the electrical code requires the use of duct seal to reduce the chance of water running into the panel from condensation.

https://www.gardnerbender.com/en/p/DS-130/Duct-Seal-Compound-1-lb-Pugs

Cheers, Wayne